1Updating Information for FreeBSD current users. 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG and WITH_GCC to bootstrap to 16the tip of head, and then rebuild without this option. The bootstrap process 17from older version of current across the gcc/clang cutover is a bit fragile. 18 19NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW: 20 FreeBSD 12.x has many debugging features turned on, in both the kernel 21 and userland. These features attempt to detect incorrect use of 22 system primitives, and encourage loud failure through extra sanity 23 checking and fail stop semantics. They also substantially impact 24 system performance. If you want to do performance measurement, 25 benchmarking, and optimization, you'll want to turn them off. This 26 includes various WITNESS- related kernel options, INVARIANTS, malloc 27 debugging flags in userland, and various verbose features in the 28 kernel. Many developers choose to disable these features on build 29 machines to maximize performance. (To completely disable malloc 30 debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely 31 disable the most expensive debugging functionality run 32 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 33 34 35****************************** SPECIAL WARNING: ****************************** 36 37 Due to a bug in some versions of clang that's very hard to workaround in 38 the upgrade process, to upgrade to -current you must first upgrade 39 either stable/9 after r286035 or stable/10 after r286033 (including 40 10.3-RELEASE) or current after r286007 (including stable/11 and 41 11.0-RELEASE). These revisions post-date the 10.2 and 9.3 releases, so 42 you'll need to take the unusual step of upgrading to the tip of the 43 stable branch before moving to 11 or -current via a source upgrade. 44 stable/11 and 11.0-RELEASE have working newer compiler. This differs 45 from the historical situation where one could upgrade from anywhere on 46 the last couple of stable branches, so be careful. 47 48 If you're running a hybrid system on 9.x or 10.x with an updated clang 49 compiler or are using an supported external toolchain, the build system 50 will allow the upgrade. Otherwise it will print a reminder. 51 52****************************** SPECIAL WARNING: ****************************** 53 5420180104: 55 The use of RSS hash from the network card aka flowid has been 56 disabled by default for lagg(4) as it's currently incompatible with 57 the lacp and loadbalance protocols. 58 59 This can be re-enabled by setting the following in loader.conf: 60 net.link.lagg.default_use_flowid="1" 61 6220180102: 63 The SW_WATCHDOG option is no longer necessary to enable the 64 hardclock-based software watchdog if no hardware watchdog is 65 configured. As before, SW_WATCHDOG will cause the software 66 watchdog to be enabled even if a hardware watchdog is configured. 67 6820171215: 69 r326887 fixes the issue described in the 20171214 UPDATING entry. 70 r326888 flips the switch back to building GELI support always. 71 7220171214: 73 r362593 broke ZFS + GELI support for reasons unknown. However, 74 it also broke ZFS support generally, so GELI has been turned off 75 by default as the lesser evil in r326857. If you boot off ZFS and/or 76 GELI, it might not be a good time to update. 77 7820171125: 79 PowerPC users must update loader(8) by rebuilding world before 80 installing a new kernel, as the protocol connecting them has 81 changed. Without the update, loader metadata will not be passed 82 successfully to the kernel and users will have to enter their 83 root partition at the kernel mountroot prompt to continue booting. 84 Newer versions of loader can boot old kernels without issue. 85 8620171110: 87 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to 88 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed 89 to WITH/OUT_LOADER_GELI. 90 9120171106: 92 The naive and non-compliant support of posix_fallocate(2) in ZFS 93 has been removed as of r325320. The system call now returns EINVAL 94 when used on a ZFS file. Although the new behavior complies with the 95 standard, some consumers are not prepared to cope with it. 96 One known victim is lld prior to r325420. 97 9820171102: 99 Building in a FreeBSD src checkout will automatically create object 100 directories now rather than store files in the current directory if 101 'make obj' was not ran. Calling 'make obj' is no longer necessary. 102 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in 103 /etc/src-env.conf (not /etc/src.conf), or passing the option in the 104 environment. 105 10620171101: 107 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native 108 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified 109 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old 110 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf, 111 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building. 112 The UNIFIED_OBJDIR option is a transitional feature that will be 113 removed for 12.0 release; please migrate to the new format for any 114 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather 115 than hardcoding paths. 116 11720171028: 118 The native-xtools target no longer installs the files by default to the 119 OBJDIR. Use the native-xtools-install target with a DESTDIR to install 120 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin. 121 12220171021: 123 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 124 options are changing from controlling the build if defined / undefined 125 to controlling the build with explicit 'yes' or 'no' values. They will 126 shift to WITH/WITHOUT options to match other options in the system. 127 12820171010: 129 libstand has turned into a private library for sys/boot use only. 130 It is no longer supported as a public interface outside of sys/boot. 131 13220171005: 133 The arm port has split armv6 into armv6 and armv7. armv7 is now 134 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 135 and are running a kernel from before r324363, you will need to add 136 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 137 13820171003: 139 When building multiple kernels using KERNCONF, non-existent KERNCONF 140 files will produce an error and buildkernel will fail. Previously 141 missing KERNCONF files silently failed giving no indication as to 142 why, only to subsequently discover during installkernel that the 143 desired kernel was never built in the first place. 144 14520170912: 146 The default serial number format for CTL LUNs has changed. This will 147 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 148 or iSCSI clients care about their LUNs' serial numbers. Users who 149 require serial number stability should hardcode serial numbers in 150 /etc/ctl.conf . 151 15220170912: 153 For 32-bit arm compiled for hard-float support, soft-floating point 154 binaries now always get their shared libraries from 155 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 156 /usr/libsoft also existed). Only users with a hard-float ld.so, but 157 soft-float everything else should be affected. 158 15920170826: 160 The geli password typed at boot is now hidden. To restore the previous 161 behavior, see geli(8) for configuration options. 162 16320170825: 164 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 165 sysctl values. Minor nit, but requires a rebuild of both world/kernel 166 to complete. 167 16820170814: 169 "make check" behavior (made in ^/head@r295380) has been changed to 170 execute from a limited sandbox, as opposed to executing from 171 ${TESTSDIR}. 172 173 Behavioral changes: 174 - The "beforecheck" and "aftercheck" targets are now specified. 175 - ${CHECKDIR} (added in commit noted above) has been removed. 176 - Legacy behavior can be enabled by setting 177 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 178 179 If the limited sandbox mode is enabled, "make check" will execute 180 "make distribution", then install, execute the tests, and clean up the 181 sandbox if successful. 182 183 The "make distribution" and "make install" targets are typically run as 184 root to set appropriate permissions and ownership at installation time. 185 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 186 environment if executing "make check" with limited sandbox mode using 187 an unprivileged user. 188 18920170808: 190 Since the switch to GPT disk labels, fsck for UFS/FFS has been 191 unable to automatically find alternate superblocks. As of r322297, 192 the information needed to find alternate superblocks has been 193 moved to the end of the area reserved for the boot block. 194 Filesystems created with a newfs of this vintage or later 195 will create the recovery information. If you have a filesystem 196 created prior to this change and wish to have a recovery block 197 created for your filesystem, you can do so by running fsck in 198 forground mode (i.e., do not use the -p or -y options). As it 199 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 200 to which you should answer yes. 201 20220170728: 203 As of r321665, an NFSv4 server configuration that services 204 Kerberos mounts or clients that do not support the uid/gid in 205 owner/owner_group string capability, must explicitly enable 206 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 207 machine's /etc/rc.conf file. 208 20920170722: 210 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 211 Please see the 20141231 entry below for information about prerequisites 212 and upgrading, if you are not already using clang 3.5.0 or higher. 213 21420170701: 215 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 216 r-commands (rlogin, rsh, etc.) to be built with the base system. 217 21820170625: 219 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 220 a very major ABI incompatible change, so users of FreeBSD/powerpc must 221 be careful when performing source upgrades. It is best to run 222 'make installworld' from an alternate root system, either a live 223 CD/memory stick, or a temporary root partition. Additionally, all ports 224 must be recompiled. powerpc64 is largely unaffected, except in the case 225 of 32-bit compatibility. All 32-bit binaries will be affected. 226 22720170623: 228 Forward compatibility for the "ino64" project have been committed. This 229 will allow most new binaries to run on older kernels in a limited 230 fashion. This prevents many of the common foot-shooting actions in the 231 upgrade as well as the limited ability to roll back the kernel across 232 the ino64 upgrade. Complicated use cases may not work properly, though 233 enough simpler ones work to allow recovery in most situations. 234 23520170620: 236 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 237 if you require the GPL compiler. 238 23920170618: 240 The internal ABI used for communication between the NFS kernel modules 241 was changed by r320085, so __FreeBSD_version was bumped to 242 ensure all the NFS related modules are updated together. 243 24420170617: 245 The ABI of struct event was changed by extending the data 246 member to 64bit and adding ext fields. For upgrade, same 247 precautions as for the entry 20170523 "ino64" must be 248 followed. 249 25020170531: 251 The GNU roff toolchain has been removed from base. To render manpages 252 which are not supported by mandoc(1), man(1) can fallback on GNU roff 253 from ports (and recommends to install it). 254 To render roff(7) documents, consider using GNU roff from ports or the 255 heirloom doctools roff toolchain from ports via pkg install groff or 256 via pkg install heirloom-doctools. 257 25820170524: 259 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 260 smaller runtime footprint builds. This is useful for embedded systems 261 which only require one chipset support. 262 263 If you load it as a module, make sure this is in /boot/loader.conf: 264 265 if_ath_load="YES" 266 267 This will load the HAL, all chip/RF backends and if_ath_pci. 268 If you have if_ath_pci in /boot/loader.conf, ensure it is after 269 if_ath or it will not load any HAL chipset support. 270 271 If you want to selectively load things (eg on ye cheape ARM/MIPS 272 platforms where RAM is at a premium) you should: 273 274 * load ath_hal 275 * load the chip modules in question 276 * load ath_rate, ath_dfs 277 * load ath_main 278 * load if_ath_pci and/or if_ath_ahb depending upon your particular 279 bus bind type - this is where probe/attach is done. 280 281 For further comments/feedback, poke adrian@ . 282 28320170523: 284 The "ino64" 64-bit inode project has been committed, which extends 285 a number of types to 64 bits. Upgrading in place requires care and 286 adherence to the documented upgrade procedure. 287 288 If using a custom kernel configuration ensure that the 289 COMPAT_FREEBSD11 option is included (as during the upgrade the 290 system will be running the ino64 kernel with the existing world). 291 292 For the safest in-place upgrade begin by removing previous build 293 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 294 full procedure documented below under the heading "To rebuild 295 everything and install it on the current system." Specifically, 296 a reboot is required after installing the new kernel before 297 installing world. 298 29920170424: 300 The NATM framework including the en(4), fatm(4), hatm(4), and 301 patm(4) devices has been removed. Consumers should plan a 302 migration before the end-of-life date for FreeBSD 11. 303 30420170420: 305 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 306 diff has not been implemented, if those are needed a newer version of 307 GNU diff is available via the diffutils package under the gdiff name. 308 30920170413: 310 As of r316810 for ipfilter, keep frags is no longer assumed when 311 keep state is specified in a rule. r316810 aligns ipfilter with 312 documentation in man pages separating keep frags from keep state. 313 This allows keep state to be specified without forcing keep frags 314 and allows keep frags to be specified independently of keep state. 315 To maintain previous behaviour, also specify keep frags with 316 keep state (as documented in ipf.conf.5). 317 31820170407: 319 arm64 builds now use the base system LLD 4.0.0 linker by default, 320 instead of requiring that the aarch64-binutils port or package be 321 installed. To continue using aarch64-binutils, set 322 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 323 32420170405: 325 The UDP optimization in entry 20160818 that added the sysctl 326 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 327 packets will no longer be treated as L3 broadcast packets. 328 32920170331: 330 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 331 use any explicitly assigned loopback address available in the jail 332 instead of using the first assigned address of the jail. 333 33420170329: 335 The ctl.ko module no longer implements the iSCSI target frontend: 336 cfiscsi.ko does instead. 337 338 If building cfiscsi.ko as a kernel module, the module can be loaded 339 via one of the following methods: 340 - `cfiscsi_load="YES"` in loader.conf(5). 341 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 342 - ctladm(8)/ctld(8), when compiled with iSCSI support 343 (`WITH_ISCSI=yes` in src.conf(5)) 344 345 Please see cfiscsi(4) for more details. 346 34720170316: 348 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 349 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 350 same source (previously, the dependency of mmcsd.ko on mmc.ko was 351 missing, but mmcsd.ko now will refuse to load if it is incompatible 352 with mmc.ko). 353 35420170315: 355 The syntax of ipfw(8) named states was changed to avoid ambiguity. 356 If you have used named states in the firewall rules, you need to modify 357 them after installworld and before rebooting. Now named states must 358 be prefixed with colon. 359 36020170311: 361 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 362 removed as the userland we provide cannot use them. The KMS version 363 (sys/dev/drm2) supports the same hardware. 364 36520170302: 366 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 367 Please see the 20141231 entry below for information about prerequisites 368 and upgrading, if you are not already using clang 3.5.0 or higher. 369 37020170221: 371 The code that provides support for ZFS .zfs/ directory functionality 372 has been reimplemented. It's not possible now to create a snapshot 373 by mkdir under .zfs/snapshot/. That should be the only user visible 374 change. 375 37620170216: 377 EISA bus support has been removed. The WITH_EISA option is no longer 378 valid. 379 38020170215: 381 MCA bus support has been removed. 382 38320170127: 384 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 385 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 386 38720170112: 388 The EM_MULTIQUEUE kernel configuration option is deprecated now that 389 the em(4) driver conforms to iflib specifications. 390 39120170109: 392 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 393 IFLIB. If you have a custom kernel configuration that excludes em(4) 394 but you use igb(4), you need to re-add em(4) to your custom configuration. 395 39620161217: 397 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 398 Please see the 20141231 entry below for information about prerequisites 399 and upgrading, if you are not already using clang 3.5.0 or higher. 400 40120161124: 402 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 403 Please see the 20141231 entry below for information about prerequisites 404 and upgrading, if you are not already using clang 3.5.0 or higher. 405 40620161119: 407 The layout of the pmap structure has changed for powerpc to put the pmap 408 statistics at the front for all CPU variations. libkvm(3) and all tools 409 that link against it need to be recompiled. 410 41120161030: 412 isl(4) and cyapa(4) drivers now require a new driver, 413 chromebook_platform(4), to work properly on Chromebook-class hardware. 414 On other types of hardware the drivers may need to be configured using 415 device hints. Please see the corresponding manual pages for details. 416 41720161017: 418 The urtwn(4) driver was merged into rtwn(4) and now consists of 419 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 420 parts. 421 Also, firmware for RTL8188CE was renamed due to possible name 422 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 423 42420161015: 425 GNU rcs has been removed from base. It is available as packages: 426 - rcs: Latest GPLv3 GNU rcs version. 427 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 428 removed from base. 429 43020161008: 431 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 432 modules now requires that the kernel configuration contain the 433 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 434 43520161003: 436 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 437 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 438 43920160924: 440 Relocatable object files with the extension of .So have been renamed 441 to use an extension of .pico instead. The purpose of this change is 442 to avoid a name clash with shared libraries on case-insensitive file 443 systems. On those file systems, foo.So is the same file as foo.so. 444 44520160918: 446 GNU rcs has been turned off by default. It can (temporarily) be built 447 again by adding WITH_RCS knob in src.conf. 448 Otherwise, GNU rcs is available from packages: 449 - rcs: Latest GPLv3 GNU rcs version. 450 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 451 45220160918: 453 The backup_uses_rcs functionality has been removed from rc.subr. 454 45520160908: 456 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 457 two separate components, QUEUE_MACRO_DEBUG_TRACE and 458 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 459 QUEUE_MACRO_DEBUG behavior. 460 46120160824: 462 r304787 changed some ioctl interfaces between the iSCSI userspace 463 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 464 rebuilt to work with new kernels. __FreeBSD_version has been bumped 465 to 1200005. 466 46720160818: 468 The UDP receive code has been updated to only treat incoming UDP 469 packets that were addressed to an L2 broadcast address as L3 470 broadcast packets. It is not expected that this will affect any 471 standards-conforming UDP application. The new behaviour can be 472 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 473 0. 474 47520160818: 476 Remove the openbsd_poll system call. 477 __FreeBSD_version has been bumped because of this. 478 47920160622: 480 The libc stub for the pipe(2) system call has been replaced with 481 a wrapper that calls the pipe2(2) system call and the pipe(2) 482 system call is now only implemented by the kernels that include 483 "options COMPAT_FREEBSD10" in their config file (this is the 484 default). Users should ensure that this option is enabled in 485 their kernel or upgrade userspace to r302092 before upgrading their 486 kernel. 487 48820160527: 489 CAM will now strip leading spaces from SCSI disks' serial numbers. 490 This will affect users who create UFS filesystems on SCSI disks using 491 those disk's diskid device nodes. For example, if /etc/fstab 492 previously contained a line like 493 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 494 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 495 transforms like gmirror may also be affected. ZFS users should 496 generally be fine. 497 49820160523: 499 The bitstring(3) API has been updated with new functionality and 500 improved performance. But it is binary-incompatible with the old API. 501 Objects built with the new headers may not be linked against objects 502 built with the old headers. 503 50420160520: 505 The brk and sbrk functions have been removed from libc on arm64. 506 Binutils from ports has been updated to not link to these 507 functions and should be updated to the latest version before 508 installing a new libc. 509 51020160517: 511 The armv6 port now defaults to hard float ABI. Limited support 512 for running both hardfloat and soft float on the same system 513 is available using the libraries installed with -DWITH_LIBSOFT. 514 This has only been tested as an upgrade path for installworld 515 and packages may fail or need manual intervention to run. New 516 packages will be needed. 517 518 To update an existing self-hosted armv6hf system, you must add 519 TARGET_ARCH=armv6 on the make command line for both the build 520 and the install steps. 521 52220160510: 523 Kernel modules compiled outside of a kernel build now default to 524 installing to /boot/modules instead of /boot/kernel. Many kernel 525 modules built this way (such as those in ports) already overrode 526 KMODDIR explicitly to install into /boot/modules. However, 527 manually building and installing a module from /sys/modules will 528 now install to /boot/modules instead of /boot/kernel. 529 53020160414: 531 The CAM I/O scheduler has been committed to the kernel. There should be 532 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 533 list of known rogues that claim support for this but actually corrupt 534 data is believed to be complete, be on the lookout for data 535 corruption. The known rogue list is believed to be complete: 536 537 o Crucial MX100, M550 drives with MU01 firmware. 538 o Micron M510 and M550 drives with MU01 firmware. 539 o Micron M500 prior to MU07 firmware 540 o Samsung 830, 840, and 850 all firmwares 541 o FCCT M500 all firmwares 542 543 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 544 with working NCQ TRIM. For Micron branded drives, see your sales rep for 545 updated firmware. Black listed drives will work correctly because these 546 drives work correctly so long as no NCQ TRIMs are sent to them. Given 547 this list is the same as found in Linux, it's believed there are no 548 other rogues in the market place. All other models from the above 549 vendors work. 550 551 To be safe, if you are at all concerned, you can quirk each of your 552 drives to prevent NCQ from being sent by setting: 553 kern.cam.ada.X.quirks="0x2" 554 in loader.conf. If the drive requires the 4k sector quirk, set the 555 quirks entry to 0x3. 556 55720160330: 558 The FAST_DEPEND build option has been removed and its functionality is 559 now the one true way. The old mkdep(1) style of 'make depend' has 560 been removed. See 20160311 for further details. 561 56220160317: 563 Resource range types have grown from unsigned long to uintmax_t. All 564 drivers, and anything using libdevinfo, need to be recompiled. 565 56620160311: 567 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 568 builds. It no longer runs mkdep(1) during 'make depend', and the 569 'make depend' stage can safely be skipped now as it is auto ran 570 when building 'make all' and will generate all SRCS and DPSRCS before 571 building anything else. Dependencies are gathered at compile time with 572 -MF flags kept in separate .depend files per object file. Users should 573 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 574 stale .depend files. 575 57620160306: 577 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 578 kernel modules. Therefore, if you load any kernel modules at boot time, 579 please install the boot loaders after you install the kernel, but before 580 rebooting, e.g.: 581 582 make buildworld 583 make kernel KERNCONF=YOUR_KERNEL_HERE 584 make -C sys/boot install 585 <reboot in single user> 586 587 Then follow the usual steps, described in the General Notes section, 588 below. 589 59020160305: 591 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 592 see the 20141231 entry below for information about prerequisites and 593 upgrading, if you are not already using clang 3.5.0 or higher. 594 59520160301: 596 The AIO subsystem is now a standard part of the kernel. The 597 VFS_AIO kernel option and aio.ko kernel module have been removed. 598 Due to stability concerns, asynchronous I/O requests are only 599 permitted on sockets and raw disks by default. To enable 600 asynchronous I/O requests on all file types, set the 601 vfs.aio.enable_unsafe sysctl to a non-zero value. 602 60320160226: 604 The ELF object manipulation tool objcopy is now provided by the 605 ELF Tool Chain project rather than by GNU binutils. It should be a 606 drop-in replacement, with the addition of arm64 support. The 607 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 608 to obtain the GNU version if necessary. 609 61020160129: 611 Building ZFS pools on top of zvols is prohibited by default. That 612 feature has never worked safely; it's always been prone to deadlocks. 613 Using a zvol as the backing store for a VM guest's virtual disk will 614 still work, even if the guest is using ZFS. Legacy behavior can be 615 restored by setting vfs.zfs.vol.recursive=1. 616 61720160119: 618 The NONE and HPN patches has been removed from OpenSSH. They are 619 still available in the security/openssh-portable port. 620 62120160113: 622 With the addition of ypldap(8), a new _ypldap user is now required 623 during installworld. "mergemaster -p" can be used to add the user 624 prior to installworld, as documented in the handbook. 625 62620151216: 627 The tftp loader (pxeboot) now uses the option root-path directive. As a 628 consequence it no longer looks for a pxeboot.4th file on the tftp 629 server. Instead it uses the regular /boot infrastructure as with the 630 other loaders. 631 63220151211: 633 The code to start recording plug and play data into the modules has 634 been committed. While the old tools will properly build a new kernel, 635 a number of warnings about "unknown metadata record 4" will be produced 636 for an older kldxref. To avoid such warnings, make sure to rebuild 637 the kernel toolchain (or world). Make sure that you have r292078 or 638 later when trying to build 292077 or later before rebuilding. 639 64020151207: 641 Debug data files are now built by default with 'make buildworld' and 642 installed with 'make installworld'. This facilitates debugging but 643 requires more disk space both during the build and for the installed 644 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 645 in src.conf(5). 646 64720151130: 648 r291527 changed the internal interface between the nfsd.ko and 649 nfscommon.ko modules. As such, they must both be upgraded to-gether. 650 __FreeBSD_version has been bumped because of this. 651 65220151108: 653 Add support for unicode collation strings leads to a change of 654 order of files listed by ls(1) for example. To get back to the old 655 behaviour, set LC_COLLATE environment variable to "C". 656 657 Databases administrators will need to reindex their databases given 658 collation results will be different. 659 660 Due to a bug in install(1) it is recommended to remove the ancient 661 locales before running make installworld. 662 663 rm -rf /usr/share/locale/* 664 66520151030: 666 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 667 libcrypto.so.7 or libssl.so.7 must be recompiled. 668 66920151020: 670 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 671 Kernel modules isp_2400_multi and isp_2500_multi were removed and 672 should be replaced with isp_2400 and isp_2500 modules respectively. 673 67420151017: 675 The build previously allowed using 'make -n' to not recurse into 676 sub-directories while showing what commands would be executed, and 677 'make -n -n' to recursively show commands. Now 'make -n' will recurse 678 and 'make -N' will not. 679 68020151012: 681 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 682 and etcupdate will now use this file. A custom sendmail.cf is now 683 updated via this mechanism rather than via installworld. If you had 684 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 685 want to remove the exclusion or change it to "always install". 686 /etc/mail/sendmail.cf is now managed the same way regardless of 687 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 688 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 689 69020151011: 691 Compatibility shims for legacy ATA device names have been removed. 692 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 693 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 694 environment variables, /dev/ad* and /dev/ar* symbolic links. 695 69620151006: 697 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 698 Please see the 20141231 entry below for information about prerequisites 699 and upgrading, if you are not already using clang 3.5.0 or higher. 700 70120150924: 702 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 703 and renamed from .symbols to .debug. This reduces the size requirements 704 on the boot partition or file system and provides consistency with 705 userland debug files. 706 707 When using the supported kernel installation method the 708 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 709 as is done with /boot/kernel. 710 711 Developers wishing to maintain the historical behavior of installing 712 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 713 71420150827: 715 The wireless drivers had undergone changes that remove the 'parent 716 interface' from the ifconfig -l output. The rc.d network scripts 717 used to check presence of a parent interface in the list, so old 718 scripts would fail to start wireless networking. Thus, etcupdate(3) 719 or mergemaster(8) run is required after kernel update, to update your 720 rc.d scripts in /etc. 721 72220150827: 723 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 724 These configurations are now automatically interpreted as 725 'scrub fragment reassemble'. 726 72720150817: 728 Kernel-loadable modules for the random(4) device are back. To use 729 them, the kernel must have 730 731 device random 732 options RANDOM_LOADABLE 733 734 kldload(8) can then be used to load random_fortuna.ko 735 or random_yarrow.ko. Please note that due to the indirect 736 function calls that the loadable modules need to provide, 737 the build-in variants will be slightly more efficient. 738 739 The random(4) kernel option RANDOM_DUMMY has been retired due to 740 unpopularity. It was not all that useful anyway. 741 74220150813: 743 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 744 Control over building the ELF Tool Chain tools is now provided by 745 the WITHOUT_TOOLCHAIN knob. 746 74720150810: 748 The polarity of Pulse Per Second (PPS) capture events with the 749 uart(4) driver has been corrected. Prior to this change the PPS 750 "assert" event corresponded to the trailing edge of a positive PPS 751 pulse and the "clear" event was the leading edge of the next pulse. 752 753 As the width of a PPS pulse in a typical GPS receiver is on the 754 order of 1 millisecond, most users will not notice any significant 755 difference with this change. 756 757 Anyone who has compensated for the historical polarity reversal by 758 configuring a negative offset equal to the pulse width will need to 759 remove that workaround. 760 76120150809: 762 The default group assigned to /dev/dri entries has been changed 763 from 'wheel' to 'video' with the id of '44'. If you want to have 764 access to the dri devices please add yourself to the video group 765 with: 766 767 # pw groupmod video -m $USER 768 76920150806: 770 The menu.rc and loader.rc files will now be replaced during 771 upgrades. Please migrate local changes to menu.rc.local and 772 loader.rc.local instead. 773 77420150805: 775 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 776 strings and strip have been removed. The src.conf(5) knob 777 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 778 77920150728: 780 As ZFS requires more kernel stack pages than is the default on some 781 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 782 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 783 784 Please consider using 'options KSTACK_PAGES=X' where X is greater 785 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 786 78720150706: 788 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 789 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 790 default, i.e., they will not contain "::". For example, instead 791 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 792 to have a more specific match, such as different map entries for 793 IPv6:0:0 vs IPv6:0. This change requires that configuration 794 data (including maps, files, classes, custom ruleset, etc.) must 795 use the same format, so make certain such configuration data is 796 upgrading. As a very simple check search for patterns like 797 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 798 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 799 the cf option UseCompressedIPv6Addresses. 800 80120150630: 802 The default kernel entropy-processing algorithm is now 803 Fortuna, replacing Yarrow. 804 805 Assuming you have 'device random' in your kernel config 806 file, the configurations allow a kernel option to override 807 this default. You may choose *ONE* of: 808 809 options RANDOM_YARROW # Legacy /dev/random algorithm. 810 options RANDOM_DUMMY # Blocking-only driver. 811 812 If you have neither, you get Fortuna. For most people, 813 read no further, Fortuna will give a /dev/random that works 814 like it always used to, and the difference will be irrelevant. 815 816 If you remove 'device random', you get *NO* kernel-processed 817 entropy at all. This may be acceptable to folks building 818 embedded systems, but has complications. Carry on reading, 819 and it is assumed you know what you need. 820 821 *PLEASE* read random(4) and random(9) if you are in the 822 habit of tweaking kernel configs, and/or if you are a member 823 of the embedded community, wanting specific and not-usual 824 behaviour from your security subsystems. 825 826 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 827 random', you will NOT have a functioning /dev/random, and 828 many cryptographic features will not work, including SSH. 829 You may also find strange behaviour from the random(3) set 830 of library functions, in particular sranddev(3), srandomdev(3) 831 and arc4random(3). The reason for this is that the KERN_ARND 832 sysctl only returns entropy if it thinks it has some to 833 share, and with RANDOM_DUMMY or no 'device random' this 834 will never happen. 835 83620150623: 837 An additional fix for the issue described in the 20150614 sendmail 838 entry below has been committed in revision 284717. 839 84020150616: 841 FreeBSD's old make (fmake) has been removed from the system. It is 842 available as the devel/fmake port or via pkg install fmake. 843 84420150615: 845 The fix for the issue described in the 20150614 sendmail entry 846 below has been committed in revision 284436. The work 847 around described in that entry is no longer needed unless the 848 default setting is overridden by a confDH_PARAMETERS configuration 849 setting of '5' or pointing to a 512 bit DH parameter file. 850 85120150614: 852 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 853 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 854 and devel/kyua to version 0.20+ and adjust any calling code to work 855 with Kyuafile and kyua. 856 85720150614: 858 The import of openssl to address the FreeBSD-SA-15:10.openssl 859 security advisory includes a change which rejects handshakes 860 with DH parameters below 768 bits. sendmail releases prior 861 to 8.15.2 (not yet released), defaulted to a 512 bit 862 DH parameter setting for client connections. To work around 863 this interoperability, sendmail can be configured to use a 864 2048 bit DH parameter by: 865 866 1. Edit /etc/mail/`hostname`.mc 867 2. If a setting for confDH_PARAMETERS does not exist or 868 exists and is set to a string beginning with '5', 869 replace it with '2'. 870 3. If a setting for confDH_PARAMETERS exists and is set to 871 a file path, create a new file with: 872 openssl dhparam -out /path/to/file 2048 873 4. Rebuild the .cf file: 874 cd /etc/mail/; make; make install 875 5. Restart sendmail: 876 cd /etc/mail/; make restart 877 878 A sendmail patch is coming, at which time this file will be 879 updated. 880 88120150604: 882 Generation of legacy formatted entries have been disabled by default 883 in pwd_mkdb(8), as all base system consumers of the legacy formatted 884 entries were converted to use the new format by default when the new, 885 machine independent format have been added and supported since FreeBSD 886 5.x. 887 888 Please see the pwd_mkdb(8) manual page for further details. 889 89020150525: 891 Clang and llvm have been upgraded to 3.6.1 release. Please see the 892 20141231 entry below for information about prerequisites and upgrading, 893 if you are not already using 3.5.0 or higher. 894 89520150521: 896 TI platform code switched to using vendor DTS files and this update 897 may break existing systems running on Beaglebone, Beaglebone Black, 898 and Pandaboard: 899 900 - dtb files should be regenerated/reinstalled. Filenames are the 901 same but content is different now 902 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 903 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 904 addressing scheme is now pin 25 on /dev/gpioc3. 905 - Pandaboard: /etc/ttys should be updated, serial console device is 906 now /dev/ttyu2, not /dev/ttyu0 907 90820150501: 909 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 910 If you need the GNU extension from groff soelim(1), install groff 911 from package: pkg install groff, or via ports: textproc/groff. 912 91320150423: 914 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 915 defined in symlink(7); previously symlinks were silently ignored. 916 91720150415: 918 The const qualifier has been removed from iconv(3) to comply with 919 POSIX. The ports tree is aware of this from r384038 onwards. 920 92120150416: 922 Libraries specified by LIBADD in Makefiles must have a corresponding 923 DPADD_<lib> variable to ensure correct dependencies. This is now 924 enforced in src.libnames.mk. 925 92620150324: 927 From legacy ata(4) driver was removed support for SATA controllers 928 supported by more functional drivers ahci(4), siis(4) and mvs(4). 929 Kernel modules ataahci and ataadaptec were removed completely, 930 replaced by ahci and mvs modules respectively. 931 93220150315: 933 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 934 the 20141231 entry below for information about prerequisites and 935 upgrading, if you are not already using 3.5.0 or higher. 936 93720150307: 938 The 32-bit PowerPC kernel has been changed to a position-independent 939 executable. This can only be booted with a version of loader(8) 940 newer than January 31, 2015, so make sure to update both world and 941 kernel before rebooting. 942 94320150217: 944 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 945 but before r278950, the RNG was not seeded properly. Immediately 946 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 947 ssh keys or openssl keys) that were generated w/ a kernel from that 948 range. This does not affect programs that directly used /dev/random 949 or /dev/urandom. All userland uses of arc4random(3) are affected. 950 95120150210: 952 The autofs(4) ABI was changed in order to restore binary compatibility 953 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 954 with the new kernel. 955 95620150131: 957 The powerpc64 kernel has been changed to a position-independent 958 executable. This can only be booted with a new version of loader(8), 959 so make sure to update both world and kernel before rebooting. 960 96120150118: 962 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 963 only release, no new features have been added. Please see the 20141231 964 entry below for information about prerequisites and upgrading, if you 965 are not already using 3.5.0. 966 96720150107: 968 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 969 taken from the ELF Tool Chain project rather than GNU binutils. They 970 should be drop-in replacements, with the addition of arm64 support. 971 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 972 binutils tools, if necessary. See 20150805 for updated information. 973 97420150105: 975 The default Unbound configuration now enables remote control 976 using a local socket. Users who have already enabled the 977 local_unbound service should regenerate their configuration 978 by running "service local_unbound setup" as root. 979 98020150102: 981 The GNU texinfo and GNU info pages have been removed. 982 To be able to view GNU info pages please install texinfo from ports. 983 98420141231: 985 Clang, llvm and lldb have been upgraded to 3.5.0 release. 986 987 As of this release, a prerequisite for building clang, llvm and lldb is 988 a C++11 capable compiler and C++11 standard library. This means that to 989 be able to successfully build the cross-tools stage of buildworld, with 990 clang as the bootstrap compiler, your system compiler or cross compiler 991 should either be clang 3.3 or later, or gcc 4.8 or later, and your 992 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 993 later. 994 995 On any standard FreeBSD 10.x or 11.x installation, where clang and 996 libc++ are on by default (that is, on x86 or arm), this should work out 997 of the box. 998 999 On 9.x installations where clang is enabled by default, e.g. on x86 and 1000 powerpc, libc++ will not be enabled by default, so libc++ should be 1001 built (with clang) and installed first. If both clang and libc++ are 1002 missing, build clang first, then use it to build libc++. 1003 1004 On 8.x and earlier installations, upgrade to 9.x first, and then follow 1005 the instructions for 9.x above. 1006 1007 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 1008 default, and do not build clang. 1009 1010 Many embedded systems are resource constrained, and will not be able to 1011 build clang in a reasonable time, or in some cases at all. In those 1012 cases, cross building bootable systems on amd64 is a workaround. 1013 1014 This new version of clang introduces a number of new warnings, of which 1015 the following are most likely to appear: 1016 1017 -Wabsolute-value 1018 1019 This warns in two cases, for both C and C++: 1020 * When the code is trying to take the absolute value of an unsigned 1021 quantity, which is effectively a no-op, and almost never what was 1022 intended. The code should be fixed, if at all possible. If you are 1023 sure that the unsigned quantity can be safely cast to signed, without 1024 loss of information or undefined behavior, you can add an explicit 1025 cast, or disable the warning. 1026 1027 * When the code is trying to take an absolute value, but the called 1028 abs() variant is for the wrong type, which can lead to truncation. 1029 If you want to disable the warning instead of fixing the code, please 1030 make sure that truncation will not occur, or it might lead to unwanted 1031 side-effects. 1032 1033 -Wtautological-undefined-compare and 1034 -Wundefined-bool-conversion 1035 1036 These warn when C++ code is trying to compare 'this' against NULL, while 1037 'this' should never be NULL in well-defined C++ code. However, there is 1038 some legacy (pre C++11) code out there, which actively abuses this 1039 feature, which was less strictly defined in previous C++ versions. 1040 1041 Squid and openjdk do this, for example. The warning can be turned off 1042 for C++98 and earlier, but compiling the code in C++11 mode might result 1043 in unexpected behavior; for example, the parts of the program that are 1044 unreachable could be optimized away. 1045 104620141222: 1047 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 1048 kernel sources have been removed. The .h files remain, since some 1049 utilities include them. This will need to be fixed later. 1050 If "mount -t oldnfs ..." is attempted, it will fail. 1051 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 1052 the utilities will report errors. 1053 105420141121: 1055 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 1056 directories to top level SUBDIR variable when their parent 1057 directory is included in LOCAL_DIRS. Users with build systems with 1058 such hierarchies and without SUBDIR entries in the parent 1059 directory Makefiles should add them or add the directories to 1060 LOCAL_DIRS. 1061 106220141109: 1063 faith(4) and faithd(8) have been removed from the base system. Faith 1064 has been obsolete for a very long time. 1065 106620141104: 1067 vt(4), the new console driver, is enabled by default. It brings 1068 support for Unicode and double-width characters, as well as 1069 support for UEFI and integration with the KMS kernel video 1070 drivers. 1071 1072 You may need to update your console settings in /etc/rc.conf, 1073 most probably the keymap. During boot, /etc/rc.d/syscons will 1074 indicate what you need to do. 1075 1076 vt(4) still has issues and lacks some features compared to 1077 syscons(4). See the wiki for up-to-date information: 1078 https://wiki.freebsd.org/Newcons 1079 1080 If you want to keep using syscons(4), you can do so by adding 1081 the following line to /boot/loader.conf: 1082 kern.vty=sc 1083 108420141102: 1085 pjdfstest has been integrated into kyua as an opt-in test suite. 1086 Please see share/doc/pjdfstest/README for more details on how to 1087 execute it. 1088 108920141009: 1090 gperf has been removed from the base system for architectures 1091 that use clang. Ports that require gperf will obtain it from the 1092 devel/gperf port. 1093 109420140923: 1095 pjdfstest has been moved from tools/regression/pjdfstest to 1096 contrib/pjdfstest . 1097 109820140922: 1099 At svn r271982, The default linux compat kernel ABI has been adjusted 1100 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1101 update. If you wish to continue using the linux-f10 compat ports, 1102 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1103 encouraged to update their linux-compat packages to linux-c6 during 1104 their next update cycle. 1105 110620140729: 1107 The ofwfb driver, used to provide a graphics console on PowerPC when 1108 using vt(4), no longer allows mmap() of all physical memory. This 1109 will prevent Xorg on PowerPC with some ATI graphics cards from 1110 initializing properly unless x11-servers/xorg-server is updated to 1111 1.12.4_8 or newer. 1112 111320140723: 1114 The xdev targets have been converted to using TARGET and 1115 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1116 111720140719: 1118 The default unbound configuration has been modified to address 1119 issues with reverse lookups on networks that use private 1120 address ranges. If you use the local_unbound service, run 1121 "service local_unbound setup" as root to regenerate your 1122 configuration, then "service local_unbound reload" to load the 1123 new configuration. 1124 112520140709: 1126 The GNU texinfo and GNU info pages are not built and installed 1127 anymore, WITH_INFO knob has been added to allow to built and install 1128 them again. 1129 UPDATE: see 20150102 entry on texinfo's removal 1130 113120140708: 1132 The GNU readline library is now an INTERNALLIB - that is, it is 1133 statically linked into consumers (GDB and variants) in the base 1134 system, and the shared library is no longer installed. The 1135 devel/readline port is available for third party software that 1136 requires readline. 1137 113820140702: 1139 The Itanium architecture (ia64) has been removed from the list of 1140 known architectures. This is the first step in the removal of the 1141 architecture. 1142 114320140701: 1144 Commit r268115 has added NFSv4.1 server support, merged from 1145 projects/nfsv4.1-server. Since this includes changes to the 1146 internal interfaces between the NFS related modules, a full 1147 build of the kernel and modules will be necessary. 1148 __FreeBSD_version has been bumped. 1149 115020140629: 1151 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1152 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1153 which differs from the behaviour controlled by this knob.) 1154 115520140619: 1156 Maximal length of the serial number in CTL was increased from 16 to 1157 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1158 and ctld, need to be rebuilt to work with a new kernel. 1159 116020140606: 1161 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1162 1 respectively to match the upstream numbers. They were out of 1163 sync because, when they were originally added to FreeBSD, the 1164 upstream versions were not respected. These libraries are private 1165 and not yet built by default, so renumbering them should be a 1166 non-issue. However, unclean source trees will yield broken test 1167 programs once the operator executes "make delete-old-libs" after a 1168 "make installworld". 1169 1170 Additionally, the atf-sh binary was made private by moving it into 1171 /usr/libexec/. Already-built shell test programs will keep the 1172 path to the old binary so they will break after "make delete-old" 1173 is run. 1174 1175 If you are using WITH_TESTS=yes (not the default), wipe the object 1176 tree and rebuild from scratch to prevent spurious test failures. 1177 This is only needed once: the misnumbered libraries and misplaced 1178 binaries have been added to OptionalObsoleteFiles.inc so they will 1179 be removed during a clean upgrade. 1180 118120140512: 1182 Clang and llvm have been upgraded to 3.4.1 release. 1183 118420140508: 1185 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1186 be removed to avoid issues in the future (and has been added to 1187 ObsoleteFiles.inc). 1188 118920140505: 1190 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1191 past, it affected all builds that used the bsd.*.mk files. The old 1192 behavior was a bug, but people may have relied upon it. To get this 1193 behavior back, you can .include /etc/src.conf from /etc/make.conf 1194 (which is still global and isn't changed). This also changes the 1195 behavior of incremental builds inside the tree of individual 1196 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1197 Although this has survived make universe and some upgrade scenarios, 1198 other upgrade scenarios may have broken. At least one form of 1199 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1200 as well... In cases where MAKESYSPATH isn't working with this 1201 setting, you'll need to set it to the full path to your tree. 1202 1203 One side effect of all this cleaning up is that bsd.compiler.mk 1204 is no longer implicitly included by bsd.own.mk. If you wish to 1205 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1206 as well. 1207 120820140430: 1209 The lindev device has been removed since /dev/full has been made a 1210 standard device. __FreeBSD_version has been bumped. 1211 121220140424: 1213 The knob WITHOUT_VI was added to the base system, which controls 1214 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1215 in order to reorder files share/termcap and didn't build ex(1) as a 1216 build tool, so building/installing with WITH_VI is highly advised for 1217 build hosts for older releases. 1218 1219 This issue has been fixed in stable/9 and stable/10 in r277022 and 1220 r276991, respectively. 1221 122220140418: 1223 The YES_HESIOD knob has been removed. It has been obsolete for 1224 a decade. Please move to using WITH_HESIOD instead or your builds 1225 will silently lack HESIOD. 1226 122720140405: 1228 The uart(4) driver has been changed with respect to its handling 1229 of the low-level console. Previously the uart(4) driver prevented 1230 any process from changing the baudrate or the CLOCAL and HUPCL 1231 control flags. By removing the restrictions, operators can make 1232 changes to the serial console port without having to reboot. 1233 However, when getty(8) is started on the serial device that is 1234 associated with the low-level console, a misconfigured terminal 1235 line in /etc/ttys will now have a real impact. 1236 Before upgrading the kernel, make sure that /etc/ttys has the 1237 serial console device configured as 3wire without baudrate to 1238 preserve the previous behaviour. E.g: 1239 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1240 124120140306: 1242 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1243 to improve performance. To re-enable it, if needed, run rpcbind 1244 with command line option -W. 1245 124620140226: 1247 Switched back to the GPL dtc compiler due to updates in the upstream 1248 dts files not being supported by the BSDL dtc compiler. You will need 1249 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1250 may result while building dtb files during a kernel build if you fail 1251 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1252 125320140216: 1254 Clang and llvm have been upgraded to 3.4 release. 1255 125620140216: 1257 The nve(4) driver has been removed. Please use the nfe(4) driver 1258 for NVIDIA nForce MCP Ethernet adapters instead. 1259 126020140212: 1261 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1262 This could cause certain C++ applications using shared libraries built 1263 against the previous version of libc++ to crash. The incompatibility 1264 has now been fixed, but any C++ applications or shared libraries built 1265 between r261283 and r261801 should be recompiled. 1266 126720140204: 1268 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1269 capability mode support. Please note that enabling the feature in 1270 kernel is still highly recommended. 1271 127220140131: 1273 OpenSSH is now built with sandbox support, and will use sandbox as 1274 the default privilege separation method. This requires Capsicum 1275 capability mode support in kernel. 1276 127720140128: 1278 The libelf and libdwarf libraries have been updated to newer 1279 versions from upstream. Shared library version numbers for 1280 these two libraries were bumped. Any ports or binaries 1281 requiring these two libraries should be recompiled. 1282 __FreeBSD_version is bumped to 1100006. 1283 128420140110: 1285 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1286 instead of providing an explicit one, this would prevent such 1287 Makefile from providing its own Kyuafile in the future during 1288 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1289 intervention is needed to clean an objdir if you use NO_CLEAN: 1290 # find /usr/obj -name Kyuafile | xargs rm -f 1291 129220131213: 1293 The behavior of gss_pseudo_random() for the krb5 mechanism 1294 has changed, for applications requesting a longer random string 1295 than produced by the underlying enctype's pseudo-random() function. 1296 In particular, the random string produced from a session key of 1297 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1298 be different at the 17th octet and later, after this change. 1299 The counter used in the PRF+ construction is now encoded as a 1300 big-endian integer in accordance with RFC 4402. 1301 __FreeBSD_version is bumped to 1100004. 1302 130320131108: 1304 The WITHOUT_ATF build knob has been removed and its functionality 1305 has been subsumed into the more generic WITHOUT_TESTS. If you were 1306 using the former to disable the build of the ATF libraries, you 1307 should change your settings to use the latter. 1308 130920131025: 1310 The default version of mtree is nmtree which is obtained from 1311 NetBSD. The output is generally the same, but may vary 1312 slightly. If you found you need identical output adding 1313 "-F freebsd9" to the command line should do the trick. For the 1314 time being, the old mtree is available as fmtree. 1315 131620131014: 1317 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1318 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1319 1.1.4_8 and verify bsdyml not linked in, before running "make 1320 delete-old-libs": 1321 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1322 or 1323 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1324 132520131010: 1326 The stable/10 branch has been created in subversion from head 1327 revision r256279. 1328 132920131010: 1330 The rc.d/jail script has been updated to support jail(8) 1331 configuration file. The "jail_<jname>_*" rc.conf(5) variables 1332 for per-jail configuration are automatically converted to 1333 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 1334 This is transparently backward compatible. See below about some 1335 incompatibilities and rc.conf(5) manual page for more details. 1336 1337 These variables are now deprecated in favor of jail(8) configuration 1338 file. One can use "rc.d/jail config <jname>" command to generate 1339 a jail(8) configuration file in /var/run/jail.<jname>.conf without 1340 running the jail(8) utility. The default pathname of the 1341 configuration file is /etc/jail.conf and can be specified by 1342 using $jail_conf or $jail_<jname>_conf variables. 1343 1344 Please note that jail_devfs_ruleset accepts an integer at 1345 this moment. Please consider to rewrite the ruleset name 1346 with an integer. 1347 134820130930: 1349 BIND has been removed from the base system. If all you need 1350 is a local resolver, simply enable and start the local_unbound 1351 service instead. Otherwise, several versions of BIND are 1352 available in the ports tree. The dns/bind99 port is one example. 1353 1354 With this change, nslookup(1) and dig(1) are no longer in the base 1355 system. Users should instead use host(1) and drill(1) which are 1356 in the base system. Alternatively, nslookup and dig can 1357 be obtained by installing the dns/bind-tools port. 1358 135920130916: 1360 With the addition of unbound(8), a new unbound user is now 1361 required during installworld. "mergemaster -p" can be used to 1362 add the user prior to installworld, as documented in the handbook. 1363 136420130911: 1365 OpenSSH is now built with DNSSEC support, and will by default 1366 silently trust signed SSHFP records. This can be controlled with 1367 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1368 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1369 137020130906: 1371 The GNU Compiler Collection and C++ standard library (libstdc++) 1372 are no longer built by default on platforms where clang is the system 1373 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1374 options in src.conf. 1375 137620130905: 1377 The PROCDESC kernel option is now part of the GENERIC kernel 1378 configuration and is required for the rwhod(8) to work. 1379 If you are using custom kernel configuration, you should include 1380 'options PROCDESC'. 1381 138220130905: 1383 The API and ABI related to the Capsicum framework was modified 1384 in backward incompatible way. The userland libraries and programs 1385 have to be recompiled to work with the new kernel. This includes the 1386 following libraries and programs, but the whole buildworld is 1387 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1388 kdump, procstat, rwho, rwhod, uniq. 1389 139020130903: 1391 AES-NI intrinsic support has been added to gcc. The AES-NI module 1392 has been updated to use this support. A new gcc is required to build 1393 the aesni module on both i386 and amd64. 1394 139520130821: 1396 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1397 Thus "device padlock_rng" and "device rdrand_rng" should be 1398 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1399 140020130813: 1401 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1402 enables just the iconv* functionality and is now on by default. 1403 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1404 compatibility. Set WITHOUT_ICONV to build the old way. 1405 If you have been using WITH_ICONV before, you will very likely 1406 need to turn on WITH_LIBICONV_COMPAT. 1407 140820130806: 1409 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1410 Illumos origin, including ZFS. If you have INVARIANTS in your 1411 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1412 explicitly. 1413 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1414 locks if WITNESS option was set. Because that generated a lot of 1415 witness(9) reports and all of them were believed to be false 1416 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1417 can be used to achieve the previous behavior. 1418 141920130806: 1420 Timer values in IPv6 data structures now use time_uptime instead 1421 of time_second. Although this is not a user-visible functional 1422 change, userland utilities which directly use them---ndp(8), 1423 rtadvd(8), and rtsold(8) in the base system---need to be updated 1424 to r253970 or later. 1425 142620130802: 1427 find -delete can now delete the pathnames given as arguments, 1428 instead of only files found below them or if the pathname did 1429 not contain any slashes. Formerly, the following error message 1430 would result: 1431 1432 find: -delete: <path>: relative path potentially not safe 1433 1434 Deleting the pathnames given as arguments can be prevented 1435 without error messages using -mindepth 1 or by changing 1436 directory and passing "." as argument to find. This works in the 1437 old as well as the new version of find. 1438 143920130726: 1440 Behavior of devfs rules path matching has been changed. 1441 Pattern is now always matched against fully qualified devfs 1442 path and slash characters must be explicitly matched by 1443 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1444 subdirectories must be reviewed. 1445 144620130716: 1447 The default ARM ABI has changed to the ARM EABI. The old ABI is 1448 incompatible with the ARM EABI and all programs and modules will 1449 need to be rebuilt to work with a new kernel. 1450 1451 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1452 1453 NOTE: Support for the old ABI will be removed in the future and 1454 users are advised to upgrade. 1455 145620130709: 1457 pkg_install has been disconnected from the build if you really need it 1458 you should add WITH_PKGTOOLS in your src.conf(5). 1459 146020130709: 1461 Most of network statistics structures were changed to be able 1462 keep 64-bits counters. Thus all tools, that work with networking 1463 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1464 146520130618: 1466 Fix a bug that allowed a tracing process (e.g. gdb) to write 1467 to a memory-mapped file in the traced process's address space 1468 even if neither the traced process nor the tracing process had 1469 write access to that file. 1470 147120130615: 1472 CVS has been removed from the base system. An exact copy 1473 of the code is available from the devel/cvs port. 1474 147520130613: 1476 Some people report the following error after the switch to bmake: 1477 1478 make: illegal option -- J 1479 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1480 ... 1481 *** [buildworld] Error code 2 1482 1483 this likely due to an old instance of make in 1484 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1485 which src/Makefile will use that blindly, if it exists, so if 1486 you see the above error: 1487 1488 rm -rf `make -V MAKEPATH` 1489 1490 should resolve it. 1491 149220130516: 1493 Use bmake by default. 1494 Whereas before one could choose to build with bmake via 1495 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1496 make. The goal is to remove these knobs for 10-RELEASE. 1497 1498 It is worth noting that bmake (like gmake) treats the command 1499 line as the unit of failure, rather than statements within the 1500 command line. Thus '(cd some/where && dosomething)' is safer 1501 than 'cd some/where; dosomething'. The '()' allows consistent 1502 behavior in parallel build. 1503 150420130429: 1505 Fix a bug that allows NFS clients to issue READDIR on files. 1506 150720130426: 1508 The WITHOUT_IDEA option has been removed because 1509 the IDEA patent expired. 1510 151120130426: 1512 The sysctl which controls TRIM support under ZFS has been renamed 1513 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1514 enabled by default. 1515 151620130425: 1517 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1518 rather than creating it's own in the temporary directory in 1519 order allow access to bootstrapped versions of tools such as 1520 install and mtree. When upgrading from version of FreeBSD where 1521 the install command does not support -l, you will need to 1522 install a new mergemaster command if mergemaster -p is required. 1523 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1524 && make install). 1525 152620130404: 1527 Legacy ATA stack, disabled and replaced by new CAM-based one since 1528 FreeBSD 9.0, completely removed from the sources. Kernel modules 1529 atadisk and atapi*, user-level tools atacontrol and burncd are 1530 removed. Kernel option `options ATA_CAM` is now permanently enabled 1531 and removed. 1532 153320130319: 1534 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1535 and socketpair(2). Software, in particular Kerberos, may 1536 automatically detect and use these during building. The resulting 1537 binaries will not work on older kernels. 1538 153920130308: 1540 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1541 information, see the respective 20130304 entry). 1542 154320130304: 1544 Recent commits to callout(9) changed the size of struct callout, 1545 so the KBI is probably heavily disturbed. Also, some functions 1546 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1547 by macros. Every kernel module using it won't load, so rebuild 1548 is requested. 1549 1550 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1551 but does not initialize by default (because of the new CTL_DISABLE 1552 option) to save memory. To re-enable it, remove the CTL_DISABLE 1553 option from the kernel config file or set kern.cam.ctl.disable=0 1554 in /boot/loader.conf. 1555 155620130301: 1557 The ctl device has been disabled in GENERIC for i386 and amd64. 1558 This was done due to the extra memory being allocated at system 1559 initialisation time by the ctl driver which was only used if 1560 a CAM target device was created. This makes a FreeBSD system 1561 unusable on 128MB or less of RAM. 1562 156320130208: 1564 A new compression method (lz4) has been merged to -HEAD. Please 1565 refer to zpool-features(7) for more information. 1566 1567 Please refer to the "ZFS notes" section of this file for information 1568 on upgrading boot ZFS pools. 1569 157020130129: 1571 A BSD-licensed patch(1) variant has been added and is installed 1572 as bsdpatch, being the GNU version the default patch. 1573 To inverse the logic and use the BSD-licensed one as default, 1574 while having the GNU version installed as gnupatch, rebuild 1575 and install world with the WITH_BSD_PATCH knob set. 1576 157720130121: 1578 Due to the use of the new -l option to install(1) during build 1579 and install, you must take care not to directly set the INSTALL 1580 make variable in your /etc/make.conf, /etc/src.conf, or on the 1581 command line. If you wish to use the -C flag for all installs 1582 you may be able to add INSTALL+=-C to /etc/make.conf or 1583 /etc/src.conf. 1584 158520130118: 1586 The install(1) option -M has changed meaning and now takes an 1587 argument that is a file or path to append logs to. In the 1588 unlikely event that -M was the last option on the command line 1589 and the command line contained at least two files and a target 1590 directory the first file will have logs appended to it. The -M 1591 option served little practical purpose in the last decade so its 1592 use is expected to be extremely rare. 1593 159420121223: 1595 After switching to Clang as the default compiler some users of ZFS 1596 on i386 systems started to experience stack overflow kernel panics. 1597 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1598 159920121222: 1600 GEOM_LABEL now mangles label names read from file system metadata. 1601 Mangling affect labels containing spaces, non-printable characters, 1602 '%' or '"'. Device names in /etc/fstab and other places may need to 1603 be updated. 1604 160520121217: 1606 By default, only the 10 most recent kernel dumps will be saved. To 1607 restore the previous behaviour (no limit on the number of kernel dumps 1608 stored in the dump directory) add the following line to /etc/rc.conf: 1609 1610 savecore_flags="" 1611 161220121201: 1613 With the addition of auditdistd(8), a new auditdistd user is now 1614 required during installworld. "mergemaster -p" can be used to 1615 add the user prior to installworld, as documented in the handbook. 1616 161720121117: 1618 The sin6_scope_id member variable in struct sockaddr_in6 is now 1619 filled by the kernel before passing the structure to the userland via 1620 sysctl or routing socket. This means the KAME-specific embedded scope 1621 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1622 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1623 __FreeBSD_version is bumped to 1000025. 1624 162520121105: 1626 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1627 This means that the world and kernel will be compiled with clang 1628 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1629 and /usr/bin/cpp. To disable this behavior and revert to building 1630 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1631 of current may need to bootstrap WITHOUT_CLANG first if the clang 1632 build fails (its compatibility window doesn't extend to the 9 stable 1633 branch point). 1634 163520121102: 1636 The IPFIREWALL_FORWARD kernel option has been removed. Its 1637 functionality now turned on by default. 1638 163920121023: 1640 The ZERO_COPY_SOCKET kernel option has been removed and 1641 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1642 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1643 mechanism which is not safe and may result in kernel crashes. 1644 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1645 driver supports disposeable external page sized mbuf storage. 1646 Proper replacements for both zero-copy mechanisms are under 1647 consideration and will eventually lead to complete removal 1648 of the two kernel options. 1649 165020121023: 1651 The IPv4 network stack has been converted to network byte 1652 order. The following modules need to be recompiled together 1653 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1654 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1655 165620121022: 1657 Support for non-MPSAFE filesystems was removed from VFS. The 1658 VFS_VERSION was bumped, all filesystem modules shall be 1659 recompiled. 1660 166120121018: 1662 All the non-MPSAFE filesystems have been disconnected from 1663 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1664 portalfs, smbfs, xfs. 1665 166620121016: 1667 The interface cloning API and ABI has changed. The following 1668 modules need to be recompiled together with kernel: 1669 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1670 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1671 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1672 167320121015: 1674 The sdhci driver was split in two parts: sdhci (generic SD Host 1675 Controller logic) and sdhci_pci (actual hardware driver). 1676 No kernel config modifications are required, but if you 1677 load sdhc as a module you must switch to sdhci_pci instead. 1678 167920121014: 1680 Import the FUSE kernel and userland support into base system. 1681 168220121013: 1683 The GNU sort(1) program has been removed since the BSD-licensed 1684 sort(1) has been the default for quite some time and no serious 1685 problems have been reported. The corresponding WITH_GNU_SORT 1686 knob has also gone. 1687 168820121006: 1689 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1690 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1691 with new kernel. 1692 169320121001: 1694 The net80211(4) ABI has been changed to allow for improved driver 1695 PS-POLL and power-save support. All wireless drivers need to be 1696 recompiled to work with the new kernel. 1697 169820120913: 1699 The random(4) support for the VIA hardware random number 1700 generator (`PADLOCK') is no longer enabled unconditionally. 1701 Add the padlock_rng device in the custom kernel config if 1702 needed. The GENERIC kernels on i386 and amd64 do include the 1703 device, so the change only affects the custom kernel 1704 configurations. 1705 170620120908: 1707 The pf(4) packet filter ABI has been changed. pfctl(8) and 1708 snmp_pf module need to be recompiled to work with new kernel. 1709 171020120828: 1711 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1712 to -HEAD. Pools that have empty_bpobj in active state can not be 1713 imported read-write with ZFS implementations that do not support 1714 this feature. For more information read the zpool-features(5) 1715 manual page. 1716 171720120727: 1718 The sparc64 ZFS loader has been changed to no longer try to auto- 1719 detect ZFS providers based on diskN aliases but now requires these 1720 to be explicitly listed in the OFW boot-device environment variable. 1721 172220120712: 1723 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1724 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1725 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1726 172720120712: 1728 The following sysctls and tunables have been renamed for consistency 1729 with other variables: 1730 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1731 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1732 173320120628: 1734 The sort utility has been replaced with BSD sort. For now, GNU sort 1735 is also available as "gnusort" or the default can be set back to 1736 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1737 installed as "bsdsort". 1738 173920120611: 1740 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1741 Starting with this version the old system of ZFS pool versioning 1742 is superseded by "feature flags". This concept enables forward 1743 compatibility against certain future changes in functionality of ZFS 1744 pools. The first read-only compatible "feature flag" for ZFS pools 1745 is named "com.delphix:async_destroy". For more information 1746 read the new zpool-features(5) manual page. 1747 Please refer to the "ZFS notes" section of this file for information 1748 on upgrading boot ZFS pools. 1749 175020120417: 1751 The malloc(3) implementation embedded in libc now uses sources imported 1752 as contrib/jemalloc. The most disruptive API change is to 1753 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1754 delete it prior to installworld, and optionally re-create it using the 1755 new format after rebooting. See malloc.conf(5) for details 1756 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1757 NAMESPACE section). 1758 175920120328: 1760 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1761 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1762 now spelled mips. This is to aid compatibility with third-party 1763 software that expects this naming scheme in uname(3). Little-endian 1764 settings are unchanged. If you are updating a big-endian mips64 machine 1765 from before this change, you may need to set MACHINE_ARCH=mips64 in 1766 your environment before the new build system will recognize your machine. 1767 176820120306: 1769 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1770 platforms. 1771 177220120229: 1773 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1774 nullfs(5) did not pass through all behaviours to the underlying layer, 1775 as a result if we bound to a socket on the lower layer we could connect 1776 only to the lower path; if we bound to the upper layer we could connect 1777 only to the upper path. The new behavior is one can connect to both the 1778 lower and the upper paths regardless what layer path one binds to. 1779 178020120211: 1781 The getifaddrs upgrade path broken with 20111215 has been restored. 1782 If you have upgraded in between 20111215 and 20120209 you need to 1783 recompile libc again with your kernel. You still need to recompile 1784 world to be able to configure CARP but this restriction already 1785 comes from 20111215. 1786 178720120114: 1788 The set_rcvar() function has been removed from /etc/rc.subr. All 1789 base and ports rc.d scripts have been updated, so if you have a 1790 port installed with a script in /usr/local/etc/rc.d you can either 1791 hand-edit the rcvar= line, or reinstall the port. 1792 1793 An easy way to handle the mass-update of /etc/rc.d: 1794 rm /etc/rc.d/* && mergemaster -i 1795 179620120109: 1797 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1798 on the current CPU and prevents other threads from running. 1799 This behavior can be reverted using the kern.stop_scheduler_on_panic 1800 tunable/sysctl. 1801 The new behavior can be incompatible with kern.sync_on_panic. 1802 180320111215: 1804 The carp(4) facility has been changed significantly. Configuration 1805 of the CARP protocol via ifconfig(8) has changed, as well as format 1806 of CARP events submitted to devd(8) has changed. See manual pages 1807 for more information. The arpbalance feature of carp(4) is currently 1808 not supported anymore. 1809 1810 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1811 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1812 need to be recompiled. 1813 181420111122: 1815 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1816 /dev/wmistat0. 1817 181820111108: 1819 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1820 explicitely support non-MPSAFE filesystems. 1821 It is on by default for all supported platform at this present 1822 time. 1823 182420111101: 1825 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1826 i386 and pc98 GENERIC kernel configuration files. 1827 182820110930: 1829 sysinstall has been removed 1830 183120110923: 1832 The stable/9 branch created in subversion. This corresponds to the 1833 RELENG_9 branch in CVS. 1834 1835COMMON ITEMS: 1836 1837 General Notes 1838 ------------- 1839 Avoid using make -j when upgrading. While generally safe, there are 1840 sometimes problems using -j to upgrade. If your upgrade fails with 1841 -j, please try again without -j. From time to time in the past there 1842 have been problems using -j with buildworld and/or installworld. This 1843 is especially true when upgrading between "distant" versions (eg one 1844 that cross a major release boundary or several minor releases, or when 1845 several months have passed on the -current branch). 1846 1847 Sometimes, obscure build problems are the result of environment 1848 poisoning. This can happen because the make utility reads its 1849 environment when searching for values for global variables. To run 1850 your build attempts in an "environmental clean room", prefix all make 1851 commands with 'env -i '. See the env(1) manual page for more details. 1852 1853 When upgrading from one major version to another it is generally best to 1854 upgrade to the latest code in the currently installed branch first, then 1855 do an upgrade to the new branch. This is the best-tested upgrade path, 1856 and has the highest probability of being successful. Please try this 1857 approach if you encounter problems with a major version upgrade. Since 1858 the stable 4.x branch point, one has generally been able to upgade from 1859 anywhere in the most recent stable branch to head / current (or even the 1860 last couple of stable branches). See the top of this file when there's 1861 an exception. 1862 1863 When upgrading a live system, having a root shell around before 1864 installing anything can help undo problems. Not having a root shell 1865 around can lead to problems if pam has changed too much from your 1866 starting point to allow continued authentication after the upgrade. 1867 1868 This file should be read as a log of events. When a later event changes 1869 information of a prior event, the prior event should not be deleted. 1870 Instead, a pointer to the entry with the new information should be 1871 placed in the old entry. Readers of this file should also sanity check 1872 older entries before relying on them blindly. Authors of new entries 1873 should write them with this in mind. 1874 1875 ZFS notes 1876 --------- 1877 When upgrading the boot ZFS pool to a new version, always follow 1878 these two steps: 1879 1880 1.) recompile and reinstall the ZFS boot loader and boot block 1881 (this is part of "make buildworld" and "make installworld") 1882 1883 2.) update the ZFS boot block on your boot drive 1884 1885 The following example updates the ZFS boot block on the first 1886 partition (freebsd-boot) of a GPT partitioned drive ada0: 1887 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1888 1889 Non-boot pools do not need these updates. 1890 1891 To build a kernel 1892 ----------------- 1893 If you are updating from a prior version of FreeBSD (even one just 1894 a few days old), you should follow this procedure. It is the most 1895 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1896 1897 make kernel-toolchain 1898 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1899 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1900 1901 To test a kernel once 1902 --------------------- 1903 If you just want to boot a kernel once (because you are not sure 1904 if it works, or if you want to boot a known bad kernel to provide 1905 debugging information) run 1906 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1907 nextboot -k testkernel 1908 1909 To rebuild everything and install it on the current system. 1910 ----------------------------------------------------------- 1911 # Note: sometimes if you are running current you gotta do more than 1912 # is listed here if you are upgrading from a really old current. 1913 1914 <make sure you have good level 0 dumps> 1915 make buildworld 1916 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1917 make installkernel KERNCONF=YOUR_KERNEL_HERE 1918 [1] 1919 <reboot in single user> [3] 1920 mergemaster -Fp [5] 1921 make installworld 1922 mergemaster -Fi [4] 1923 make delete-old [6] 1924 <reboot> 1925 1926 To cross-install current onto a separate partition 1927 -------------------------------------------------- 1928 # In this approach we use a separate partition to hold 1929 # current's root, 'usr', and 'var' directories. A partition 1930 # holding "/", "/usr" and "/var" should be about 2GB in 1931 # size. 1932 1933 <make sure you have good level 0 dumps> 1934 <boot into -stable> 1935 make buildworld 1936 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1937 <maybe newfs current's root partition> 1938 <mount current's root partition on directory ${CURRENT_ROOT}> 1939 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1940 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1941 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1942 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1943 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1944 <reboot into current> 1945 <do a "native" rebuild/install as described in the previous section> 1946 <maybe install compatibility libraries from ports/misc/compat*> 1947 <reboot> 1948 1949 1950 To upgrade in-place from stable to current 1951 ---------------------------------------------- 1952 <make sure you have good level 0 dumps> 1953 make buildworld [9] 1954 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1955 [1] 1956 <reboot in single user> [3] 1957 mergemaster -Fp [5] 1958 make installworld 1959 mergemaster -Fi [4] 1960 make delete-old [6] 1961 <reboot> 1962 1963 Make sure that you've read the UPDATING file to understand the 1964 tweaks to various things you need. At this point in the life 1965 cycle of current, things change often and you are on your own 1966 to cope. The defaults can also change, so please read ALL of 1967 the UPDATING entries. 1968 1969 Also, if you are tracking -current, you must be subscribed to 1970 freebsd-current@freebsd.org. Make sure that before you update 1971 your sources that you have read and understood all the recent 1972 messages there. If in doubt, please track -stable which has 1973 much fewer pitfalls. 1974 1975 [1] If you have third party modules, such as vmware, you 1976 should disable them at this point so they don't crash your 1977 system on reboot. 1978 1979 [3] From the bootblocks, boot -s, and then do 1980 fsck -p 1981 mount -u / 1982 mount -a 1983 cd src 1984 adjkerntz -i # if CMOS is wall time 1985 Also, when doing a major release upgrade, it is required that 1986 you boot into single user mode to do the installworld. 1987 1988 [4] Note: This step is non-optional. Failure to do this step 1989 can result in a significant reduction in the functionality of the 1990 system. Attempting to do it by hand is not recommended and those 1991 that pursue this avenue should read this file carefully, as well 1992 as the archives of freebsd-current and freebsd-hackers mailing lists 1993 for potential gotchas. The -U option is also useful to consider. 1994 See mergemaster(8) for more information. 1995 1996 [5] Usually this step is a noop. However, from time to time 1997 you may need to do this if you get unknown user in the following 1998 step. It never hurts to do it all the time. You may need to 1999 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2000 install) after the buildworld before this step if you last updated 2001 from current before 20130425 or from -stable before 20130430. 2002 2003 [6] This only deletes old files and directories. Old libraries 2004 can be deleted by "make delete-old-libs", but you have to make 2005 sure that no program is using those libraries anymore. 2006 2007 [8] In order to have a kernel that can run the 4.x binaries needed to 2008 do an installworld, you must include the COMPAT_FREEBSD4 option in 2009 your kernel. Failure to do so may leave you with a system that is 2010 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2011 required to run the 5.x binaries on more recent kernels. And so on 2012 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2013 2014 Make sure that you merge any new devices from GENERIC since the 2015 last time you updated your kernel config file. 2016 2017 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2018 "?=" instead of the "=" assignment operator, so that buildworld can 2019 override the CPUTYPE if it needs to. 2020 2021 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2022 not on the command line, or in /etc/make.conf. buildworld will 2023 warn if it is improperly defined. 2024FORMAT: 2025 2026This file contains a list, in reverse chronological order, of major 2027breakages in tracking -current. It is not guaranteed to be a complete 2028list of such breakages, and only contains entries since September 23, 2011. 2029If you need to see UPDATING entries from before that date, you will need 2030to fetch an UPDATING file from an older FreeBSD release. 2031 2032Copyright information: 2033 2034Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2035 2036Redistribution, publication, translation and use, with or without 2037modification, in full or in part, in any form or format of this 2038document are permitted without further permission from the author. 2039 2040THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2041IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2042WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2043DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2044INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2045(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2046SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2047HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2048STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2049IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2050POSSIBILITY OF SUCH DAMAGE. 2051 2052Contact Warner Losh if you have any questions about your use of 2053this document. 2054 2055$FreeBSD$ 2056