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 5420171215: 55 r326887 fixes the issue described in the 20171214 UPDATING entry. 56 r326888 flips the switch back to building GELI support always. 57 5820171214: 59 r362593 broke ZFS + GELI support for reasons unknown. However, 60 it also broke ZFS support generally, so GELI has been turned off 61 by default as the lesser evil in r326857. If you boot off ZFS and/or 62 GELI, it might not be a good time to update. 63 6420171125: 65 PowerPC users must update loader(8) by rebuilding world before 66 installing a new kernel, as the protocol connecting them has 67 changed. Without the update, loader metadata will not be passed 68 successfully to the kernel and users will have to enter their 69 root partition at the kernel mountroot prompt to continue booting. 70 Newer versions of loader can boot old kernels without issue. 71 7220171110: 73 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to 74 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed 75 to WITH/OUT_LOADER_GELI. 76 7720171106: 78 The naive and non-compliant support of posix_fallocate(2) in ZFS 79 has been removed as of r325320. The system call now returns EINVAL 80 when used on a ZFS file. Although the new behavior complies with the 81 standard, some consumers are not prepared to cope with it. 82 One known victim is lld prior to r325420. 83 8420171102: 85 Building in a FreeBSD src checkout will automatically create object 86 directories now rather than store files in the current directory if 87 'make obj' was not ran. Calling 'make obj' is no longer necessary. 88 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in 89 /etc/src-env.conf (not /etc/src.conf), or passing the option in the 90 environment. 91 9220171101: 93 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native 94 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified 95 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old 96 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf, 97 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building. 98 The UNIFIED_OBJDIR option is a transitional feature that will be 99 removed for 12.0 release; please migrate to the new format for any 100 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather 101 than hardcoding paths. 102 10320171028: 104 The native-xtools target no longer installs the files by default to the 105 OBJDIR. Use the native-xtools-install target with a DESTDIR to install 106 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin. 107 10820171021: 109 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 110 options are changing from controlling the build if defined / undefined 111 to controlling the build with explicit 'yes' or 'no' values. They will 112 shift to WITH/WITHOUT options to match other options in the system. 113 11420171010: 115 libstand has turned into a private library for sys/boot use only. 116 It is no longer supported as a public interface outside of sys/boot. 117 11820171005: 119 The arm port has split armv6 into armv6 and armv7. armv7 is now 120 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 121 and are running a kernel from before r324363, you will need to add 122 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 123 12420171003: 125 When building multiple kernels using KERNCONF, non-existent KERNCONF 126 files will produce an error and buildkernel will fail. Previously 127 missing KERNCONF files silently failed giving no indication as to 128 why, only to subsequently discover during installkernel that the 129 desired kernel was never built in the first place. 130 13120170912: 132 The default serial number format for CTL LUNs has changed. This will 133 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 134 or iSCSI clients care about their LUNs' serial numbers. Users who 135 require serial number stability should hardcode serial numbers in 136 /etc/ctl.conf . 137 13820170912: 139 For 32-bit arm compiled for hard-float support, soft-floating point 140 binaries now always get their shared libraries from 141 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 142 /usr/libsoft also existed). Only users with a hard-float ld.so, but 143 soft-float everything else should be affected. 144 14520170826: 146 The geli password typed at boot is now hidden. To restore the previous 147 behavior, see geli(8) for configuration options. 148 14920170825: 150 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 151 sysctl values. Minor nit, but requires a rebuild of both world/kernel 152 to complete. 153 15420170814: 155 "make check" behavior (made in ^/head@r295380) has been changed to 156 execute from a limited sandbox, as opposed to executing from 157 ${TESTSDIR}. 158 159 Behavioral changes: 160 - The "beforecheck" and "aftercheck" targets are now specified. 161 - ${CHECKDIR} (added in commit noted above) has been removed. 162 - Legacy behavior can be enabled by setting 163 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 164 165 If the limited sandbox mode is enabled, "make check" will execute 166 "make distribution", then install, execute the tests, and clean up the 167 sandbox if successful. 168 169 The "make distribution" and "make install" targets are typically run as 170 root to set appropriate permissions and ownership at installation time. 171 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 172 environment if executing "make check" with limited sandbox mode using 173 an unprivileged user. 174 17520170808: 176 Since the switch to GPT disk labels, fsck for UFS/FFS has been 177 unable to automatically find alternate superblocks. As of r322297, 178 the information needed to find alternate superblocks has been 179 moved to the end of the area reserved for the boot block. 180 Filesystems created with a newfs of this vintage or later 181 will create the recovery information. If you have a filesystem 182 created prior to this change and wish to have a recovery block 183 created for your filesystem, you can do so by running fsck in 184 forground mode (i.e., do not use the -p or -y options). As it 185 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 186 to which you should answer yes. 187 18820170728: 189 As of r321665, an NFSv4 server configuration that services 190 Kerberos mounts or clients that do not support the uid/gid in 191 owner/owner_group string capability, must explicitly enable 192 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 193 machine's /etc/rc.conf file. 194 19520170722: 196 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 197 Please see the 20141231 entry below for information about prerequisites 198 and upgrading, if you are not already using clang 3.5.0 or higher. 199 20020170701: 201 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 202 r-commands (rlogin, rsh, etc.) to be built with the base system. 203 20420170625: 205 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 206 a very major ABI incompatible change, so users of FreeBSD/powerpc must 207 be careful when performing source upgrades. It is best to run 208 'make installworld' from an alternate root system, either a live 209 CD/memory stick, or a temporary root partition. Additionally, all ports 210 must be recompiled. powerpc64 is largely unaffected, except in the case 211 of 32-bit compatibility. All 32-bit binaries will be affected. 212 21320170623: 214 Forward compatibility for the "ino64" project have been committed. This 215 will allow most new binaries to run on older kernels in a limited 216 fashion. This prevents many of the common foot-shooting actions in the 217 upgrade as well as the limited ability to roll back the kernel across 218 the ino64 upgrade. Complicated use cases may not work properly, though 219 enough simpler ones work to allow recovery in most situations. 220 22120170620: 222 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 223 if you require the GPL compiler. 224 22520170618: 226 The internal ABI used for communication between the NFS kernel modules 227 was changed by r320085, so __FreeBSD_version was bumped to 228 ensure all the NFS related modules are updated together. 229 23020170617: 231 The ABI of struct event was changed by extending the data 232 member to 64bit and adding ext fields. For upgrade, same 233 precautions as for the entry 20170523 "ino64" must be 234 followed. 235 23620170531: 237 The GNU roff toolchain has been removed from base. To render manpages 238 which are not supported by mandoc(1), man(1) can fallback on GNU roff 239 from ports (and recommends to install it). 240 To render roff(7) documents, consider using GNU roff from ports or the 241 heirloom doctools roff toolchain from ports via pkg install groff or 242 via pkg install heirloom-doctools. 243 24420170524: 245 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 246 smaller runtime footprint builds. This is useful for embedded systems 247 which only require one chipset support. 248 249 If you load it as a module, make sure this is in /boot/loader.conf: 250 251 if_ath_load="YES" 252 253 This will load the HAL, all chip/RF backends and if_ath_pci. 254 If you have if_ath_pci in /boot/loader.conf, ensure it is after 255 if_ath or it will not load any HAL chipset support. 256 257 If you want to selectively load things (eg on ye cheape ARM/MIPS 258 platforms where RAM is at a premium) you should: 259 260 * load ath_hal 261 * load the chip modules in question 262 * load ath_rate, ath_dfs 263 * load ath_main 264 * load if_ath_pci and/or if_ath_ahb depending upon your particular 265 bus bind type - this is where probe/attach is done. 266 267 For further comments/feedback, poke adrian@ . 268 26920170523: 270 The "ino64" 64-bit inode project has been committed, which extends 271 a number of types to 64 bits. Upgrading in place requires care and 272 adherence to the documented upgrade procedure. 273 274 If using a custom kernel configuration ensure that the 275 COMPAT_FREEBSD11 option is included (as during the upgrade the 276 system will be running the ino64 kernel with the existing world). 277 278 For the safest in-place upgrade begin by removing previous build 279 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 280 full procedure documented below under the heading "To rebuild 281 everything and install it on the current system." Specifically, 282 a reboot is required after installing the new kernel before 283 installing world. 284 28520170424: 286 The NATM framework including the en(4), fatm(4), hatm(4), and 287 patm(4) devices has been removed. Consumers should plan a 288 migration before the end-of-life date for FreeBSD 11. 289 29020170420: 291 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 292 diff has not been implemented, if those are needed a newer version of 293 GNU diff is available via the diffutils package under the gdiff name. 294 29520170413: 296 As of r316810 for ipfilter, keep frags is no longer assumed when 297 keep state is specified in a rule. r316810 aligns ipfilter with 298 documentation in man pages separating keep frags from keep state. 299 This allows keep state to be specified without forcing keep frags 300 and allows keep frags to be specified independently of keep state. 301 To maintain previous behaviour, also specify keep frags with 302 keep state (as documented in ipf.conf.5). 303 30420170407: 305 arm64 builds now use the base system LLD 4.0.0 linker by default, 306 instead of requiring that the aarch64-binutils port or package be 307 installed. To continue using aarch64-binutils, set 308 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 309 31020170405: 311 The UDP optimization in entry 20160818 that added the sysctl 312 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 313 packets will no longer be treated as L3 broadcast packets. 314 31520170331: 316 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 317 use any explicitly assigned loopback address available in the jail 318 instead of using the first assigned address of the jail. 319 32020170329: 321 The ctl.ko module no longer implements the iSCSI target frontend: 322 cfiscsi.ko does instead. 323 324 If building cfiscsi.ko as a kernel module, the module can be loaded 325 via one of the following methods: 326 - `cfiscsi_load="YES"` in loader.conf(5). 327 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 328 - ctladm(8)/ctld(8), when compiled with iSCSI support 329 (`WITH_ISCSI=yes` in src.conf(5)) 330 331 Please see cfiscsi(4) for more details. 332 33320170316: 334 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 335 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 336 same source (previously, the dependency of mmcsd.ko on mmc.ko was 337 missing, but mmcsd.ko now will refuse to load if it is incompatible 338 with mmc.ko). 339 34020170315: 341 The syntax of ipfw(8) named states was changed to avoid ambiguity. 342 If you have used named states in the firewall rules, you need to modify 343 them after installworld and before rebooting. Now named states must 344 be prefixed with colon. 345 34620170311: 347 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 348 removed as the userland we provide cannot use them. The KMS version 349 (sys/dev/drm2) supports the same hardware. 350 35120170302: 352 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 353 Please see the 20141231 entry below for information about prerequisites 354 and upgrading, if you are not already using clang 3.5.0 or higher. 355 35620170221: 357 The code that provides support for ZFS .zfs/ directory functionality 358 has been reimplemented. It's not possible now to create a snapshot 359 by mkdir under .zfs/snapshot/. That should be the only user visible 360 change. 361 36220170216: 363 EISA bus support has been removed. The WITH_EISA option is no longer 364 valid. 365 36620170215: 367 MCA bus support has been removed. 368 36920170127: 370 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 371 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 372 37320170112: 374 The EM_MULTIQUEUE kernel configuration option is deprecated now that 375 the em(4) driver conforms to iflib specifications. 376 37720170109: 378 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 379 IFLIB. If you have a custom kernel configuration that excludes em(4) 380 but you use igb(4), you need to re-add em(4) to your custom configuration. 381 38220161217: 383 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 384 Please see the 20141231 entry below for information about prerequisites 385 and upgrading, if you are not already using clang 3.5.0 or higher. 386 38720161124: 388 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 389 Please see the 20141231 entry below for information about prerequisites 390 and upgrading, if you are not already using clang 3.5.0 or higher. 391 39220161119: 393 The layout of the pmap structure has changed for powerpc to put the pmap 394 statistics at the front for all CPU variations. libkvm(3) and all tools 395 that link against it need to be recompiled. 396 39720161030: 398 isl(4) and cyapa(4) drivers now require a new driver, 399 chromebook_platform(4), to work properly on Chromebook-class hardware. 400 On other types of hardware the drivers may need to be configured using 401 device hints. Please see the corresponding manual pages for details. 402 40320161017: 404 The urtwn(4) driver was merged into rtwn(4) and now consists of 405 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 406 parts. 407 Also, firmware for RTL8188CE was renamed due to possible name 408 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 409 41020161015: 411 GNU rcs has been removed from base. It is available as packages: 412 - rcs: Latest GPLv3 GNU rcs version. 413 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 414 removed from base. 415 41620161008: 417 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 418 modules now requires that the kernel configuration contain the 419 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 420 42120161003: 422 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 423 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 424 42520160924: 426 Relocatable object files with the extension of .So have been renamed 427 to use an extension of .pico instead. The purpose of this change is 428 to avoid a name clash with shared libraries on case-insensitive file 429 systems. On those file systems, foo.So is the same file as foo.so. 430 43120160918: 432 GNU rcs has been turned off by default. It can (temporarily) be built 433 again by adding WITH_RCS knob in src.conf. 434 Otherwise, GNU rcs is available from packages: 435 - rcs: Latest GPLv3 GNU rcs version. 436 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 437 43820160918: 439 The backup_uses_rcs functionality has been removed from rc.subr. 440 44120160908: 442 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 443 two separate components, QUEUE_MACRO_DEBUG_TRACE and 444 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 445 QUEUE_MACRO_DEBUG behavior. 446 44720160824: 448 r304787 changed some ioctl interfaces between the iSCSI userspace 449 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 450 rebuilt to work with new kernels. __FreeBSD_version has been bumped 451 to 1200005. 452 45320160818: 454 The UDP receive code has been updated to only treat incoming UDP 455 packets that were addressed to an L2 broadcast address as L3 456 broadcast packets. It is not expected that this will affect any 457 standards-conforming UDP application. The new behaviour can be 458 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 459 0. 460 46120160818: 462 Remove the openbsd_poll system call. 463 __FreeBSD_version has been bumped because of this. 464 46520160622: 466 The libc stub for the pipe(2) system call has been replaced with 467 a wrapper that calls the pipe2(2) system call and the pipe(2) 468 system call is now only implemented by the kernels that include 469 "options COMPAT_FREEBSD10" in their config file (this is the 470 default). Users should ensure that this option is enabled in 471 their kernel or upgrade userspace to r302092 before upgrading their 472 kernel. 473 47420160527: 475 CAM will now strip leading spaces from SCSI disks' serial numbers. 476 This will affect users who create UFS filesystems on SCSI disks using 477 those disk's diskid device nodes. For example, if /etc/fstab 478 previously contained a line like 479 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 480 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 481 transforms like gmirror may also be affected. ZFS users should 482 generally be fine. 483 48420160523: 485 The bitstring(3) API has been updated with new functionality and 486 improved performance. But it is binary-incompatible with the old API. 487 Objects built with the new headers may not be linked against objects 488 built with the old headers. 489 49020160520: 491 The brk and sbrk functions have been removed from libc on arm64. 492 Binutils from ports has been updated to not link to these 493 functions and should be updated to the latest version before 494 installing a new libc. 495 49620160517: 497 The armv6 port now defaults to hard float ABI. Limited support 498 for running both hardfloat and soft float on the same system 499 is available using the libraries installed with -DWITH_LIBSOFT. 500 This has only been tested as an upgrade path for installworld 501 and packages may fail or need manual intervention to run. New 502 packages will be needed. 503 504 To update an existing self-hosted armv6hf system, you must add 505 TARGET_ARCH=armv6 on the make command line for both the build 506 and the install steps. 507 50820160510: 509 Kernel modules compiled outside of a kernel build now default to 510 installing to /boot/modules instead of /boot/kernel. Many kernel 511 modules built this way (such as those in ports) already overrode 512 KMODDIR explicitly to install into /boot/modules. However, 513 manually building and installing a module from /sys/modules will 514 now install to /boot/modules instead of /boot/kernel. 515 51620160414: 517 The CAM I/O scheduler has been committed to the kernel. There should be 518 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 519 list of known rogues that claim support for this but actually corrupt 520 data is believed to be complete, be on the lookout for data 521 corruption. The known rogue list is believed to be complete: 522 523 o Crucial MX100, M550 drives with MU01 firmware. 524 o Micron M510 and M550 drives with MU01 firmware. 525 o Micron M500 prior to MU07 firmware 526 o Samsung 830, 840, and 850 all firmwares 527 o FCCT M500 all firmwares 528 529 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 530 with working NCQ TRIM. For Micron branded drives, see your sales rep for 531 updated firmware. Black listed drives will work correctly because these 532 drives work correctly so long as no NCQ TRIMs are sent to them. Given 533 this list is the same as found in Linux, it's believed there are no 534 other rogues in the market place. All other models from the above 535 vendors work. 536 537 To be safe, if you are at all concerned, you can quirk each of your 538 drives to prevent NCQ from being sent by setting: 539 kern.cam.ada.X.quirks="0x2" 540 in loader.conf. If the drive requires the 4k sector quirk, set the 541 quirks entry to 0x3. 542 54320160330: 544 The FAST_DEPEND build option has been removed and its functionality is 545 now the one true way. The old mkdep(1) style of 'make depend' has 546 been removed. See 20160311 for further details. 547 54820160317: 549 Resource range types have grown from unsigned long to uintmax_t. All 550 drivers, and anything using libdevinfo, need to be recompiled. 551 55220160311: 553 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 554 builds. It no longer runs mkdep(1) during 'make depend', and the 555 'make depend' stage can safely be skipped now as it is auto ran 556 when building 'make all' and will generate all SRCS and DPSRCS before 557 building anything else. Dependencies are gathered at compile time with 558 -MF flags kept in separate .depend files per object file. Users should 559 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 560 stale .depend files. 561 56220160306: 563 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 564 kernel modules. Therefore, if you load any kernel modules at boot time, 565 please install the boot loaders after you install the kernel, but before 566 rebooting, e.g.: 567 568 make buildworld 569 make kernel KERNCONF=YOUR_KERNEL_HERE 570 make -C sys/boot install 571 <reboot in single user> 572 573 Then follow the usual steps, described in the General Notes section, 574 below. 575 57620160305: 577 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 578 see the 20141231 entry below for information about prerequisites and 579 upgrading, if you are not already using clang 3.5.0 or higher. 580 58120160301: 582 The AIO subsystem is now a standard part of the kernel. The 583 VFS_AIO kernel option and aio.ko kernel module have been removed. 584 Due to stability concerns, asynchronous I/O requests are only 585 permitted on sockets and raw disks by default. To enable 586 asynchronous I/O requests on all file types, set the 587 vfs.aio.enable_unsafe sysctl to a non-zero value. 588 58920160226: 590 The ELF object manipulation tool objcopy is now provided by the 591 ELF Tool Chain project rather than by GNU binutils. It should be a 592 drop-in replacement, with the addition of arm64 support. The 593 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 594 to obtain the GNU version if necessary. 595 59620160129: 597 Building ZFS pools on top of zvols is prohibited by default. That 598 feature has never worked safely; it's always been prone to deadlocks. 599 Using a zvol as the backing store for a VM guest's virtual disk will 600 still work, even if the guest is using ZFS. Legacy behavior can be 601 restored by setting vfs.zfs.vol.recursive=1. 602 60320160119: 604 The NONE and HPN patches has been removed from OpenSSH. They are 605 still available in the security/openssh-portable port. 606 60720160113: 608 With the addition of ypldap(8), a new _ypldap user is now required 609 during installworld. "mergemaster -p" can be used to add the user 610 prior to installworld, as documented in the handbook. 611 61220151216: 613 The tftp loader (pxeboot) now uses the option root-path directive. As a 614 consequence it no longer looks for a pxeboot.4th file on the tftp 615 server. Instead it uses the regular /boot infrastructure as with the 616 other loaders. 617 61820151211: 619 The code to start recording plug and play data into the modules has 620 been committed. While the old tools will properly build a new kernel, 621 a number of warnings about "unknown metadata record 4" will be produced 622 for an older kldxref. To avoid such warnings, make sure to rebuild 623 the kernel toolchain (or world). Make sure that you have r292078 or 624 later when trying to build 292077 or later before rebuilding. 625 62620151207: 627 Debug data files are now built by default with 'make buildworld' and 628 installed with 'make installworld'. This facilitates debugging but 629 requires more disk space both during the build and for the installed 630 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 631 in src.conf(5). 632 63320151130: 634 r291527 changed the internal interface between the nfsd.ko and 635 nfscommon.ko modules. As such, they must both be upgraded to-gether. 636 __FreeBSD_version has been bumped because of this. 637 63820151108: 639 Add support for unicode collation strings leads to a change of 640 order of files listed by ls(1) for example. To get back to the old 641 behaviour, set LC_COLLATE environment variable to "C". 642 643 Databases administrators will need to reindex their databases given 644 collation results will be different. 645 646 Due to a bug in install(1) it is recommended to remove the ancient 647 locales before running make installworld. 648 649 rm -rf /usr/share/locale/* 650 65120151030: 652 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 653 libcrypto.so.7 or libssl.so.7 must be recompiled. 654 65520151020: 656 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 657 Kernel modules isp_2400_multi and isp_2500_multi were removed and 658 should be replaced with isp_2400 and isp_2500 modules respectively. 659 66020151017: 661 The build previously allowed using 'make -n' to not recurse into 662 sub-directories while showing what commands would be executed, and 663 'make -n -n' to recursively show commands. Now 'make -n' will recurse 664 and 'make -N' will not. 665 66620151012: 667 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 668 and etcupdate will now use this file. A custom sendmail.cf is now 669 updated via this mechanism rather than via installworld. If you had 670 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 671 want to remove the exclusion or change it to "always install". 672 /etc/mail/sendmail.cf is now managed the same way regardless of 673 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 674 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 675 67620151011: 677 Compatibility shims for legacy ATA device names have been removed. 678 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 679 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 680 environment variables, /dev/ad* and /dev/ar* symbolic links. 681 68220151006: 683 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 684 Please see the 20141231 entry below for information about prerequisites 685 and upgrading, if you are not already using clang 3.5.0 or higher. 686 68720150924: 688 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 689 and renamed from .symbols to .debug. This reduces the size requirements 690 on the boot partition or file system and provides consistency with 691 userland debug files. 692 693 When using the supported kernel installation method the 694 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 695 as is done with /boot/kernel. 696 697 Developers wishing to maintain the historical behavior of installing 698 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 699 70020150827: 701 The wireless drivers had undergone changes that remove the 'parent 702 interface' from the ifconfig -l output. The rc.d network scripts 703 used to check presence of a parent interface in the list, so old 704 scripts would fail to start wireless networking. Thus, etcupdate(3) 705 or mergemaster(8) run is required after kernel update, to update your 706 rc.d scripts in /etc. 707 70820150827: 709 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 710 These configurations are now automatically interpreted as 711 'scrub fragment reassemble'. 712 71320150817: 714 Kernel-loadable modules for the random(4) device are back. To use 715 them, the kernel must have 716 717 device random 718 options RANDOM_LOADABLE 719 720 kldload(8) can then be used to load random_fortuna.ko 721 or random_yarrow.ko. Please note that due to the indirect 722 function calls that the loadable modules need to provide, 723 the build-in variants will be slightly more efficient. 724 725 The random(4) kernel option RANDOM_DUMMY has been retired due to 726 unpopularity. It was not all that useful anyway. 727 72820150813: 729 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 730 Control over building the ELF Tool Chain tools is now provided by 731 the WITHOUT_TOOLCHAIN knob. 732 73320150810: 734 The polarity of Pulse Per Second (PPS) capture events with the 735 uart(4) driver has been corrected. Prior to this change the PPS 736 "assert" event corresponded to the trailing edge of a positive PPS 737 pulse and the "clear" event was the leading edge of the next pulse. 738 739 As the width of a PPS pulse in a typical GPS receiver is on the 740 order of 1 millisecond, most users will not notice any significant 741 difference with this change. 742 743 Anyone who has compensated for the historical polarity reversal by 744 configuring a negative offset equal to the pulse width will need to 745 remove that workaround. 746 74720150809: 748 The default group assigned to /dev/dri entries has been changed 749 from 'wheel' to 'video' with the id of '44'. If you want to have 750 access to the dri devices please add yourself to the video group 751 with: 752 753 # pw groupmod video -m $USER 754 75520150806: 756 The menu.rc and loader.rc files will now be replaced during 757 upgrades. Please migrate local changes to menu.rc.local and 758 loader.rc.local instead. 759 76020150805: 761 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 762 strings and strip have been removed. The src.conf(5) knob 763 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 764 76520150728: 766 As ZFS requires more kernel stack pages than is the default on some 767 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 768 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 769 770 Please consider using 'options KSTACK_PAGES=X' where X is greater 771 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 772 77320150706: 774 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 775 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 776 default, i.e., they will not contain "::". For example, instead 777 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 778 to have a more specific match, such as different map entries for 779 IPv6:0:0 vs IPv6:0. This change requires that configuration 780 data (including maps, files, classes, custom ruleset, etc.) must 781 use the same format, so make certain such configuration data is 782 upgrading. As a very simple check search for patterns like 783 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 784 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 785 the cf option UseCompressedIPv6Addresses. 786 78720150630: 788 The default kernel entropy-processing algorithm is now 789 Fortuna, replacing Yarrow. 790 791 Assuming you have 'device random' in your kernel config 792 file, the configurations allow a kernel option to override 793 this default. You may choose *ONE* of: 794 795 options RANDOM_YARROW # Legacy /dev/random algorithm. 796 options RANDOM_DUMMY # Blocking-only driver. 797 798 If you have neither, you get Fortuna. For most people, 799 read no further, Fortuna will give a /dev/random that works 800 like it always used to, and the difference will be irrelevant. 801 802 If you remove 'device random', you get *NO* kernel-processed 803 entropy at all. This may be acceptable to folks building 804 embedded systems, but has complications. Carry on reading, 805 and it is assumed you know what you need. 806 807 *PLEASE* read random(4) and random(9) if you are in the 808 habit of tweaking kernel configs, and/or if you are a member 809 of the embedded community, wanting specific and not-usual 810 behaviour from your security subsystems. 811 812 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 813 random', you will NOT have a functioning /dev/random, and 814 many cryptographic features will not work, including SSH. 815 You may also find strange behaviour from the random(3) set 816 of library functions, in particular sranddev(3), srandomdev(3) 817 and arc4random(3). The reason for this is that the KERN_ARND 818 sysctl only returns entropy if it thinks it has some to 819 share, and with RANDOM_DUMMY or no 'device random' this 820 will never happen. 821 82220150623: 823 An additional fix for the issue described in the 20150614 sendmail 824 entry below has been committed in revision 284717. 825 82620150616: 827 FreeBSD's old make (fmake) has been removed from the system. It is 828 available as the devel/fmake port or via pkg install fmake. 829 83020150615: 831 The fix for the issue described in the 20150614 sendmail entry 832 below has been committed in revision 284436. The work 833 around described in that entry is no longer needed unless the 834 default setting is overridden by a confDH_PARAMETERS configuration 835 setting of '5' or pointing to a 512 bit DH parameter file. 836 83720150614: 838 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 839 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 840 and devel/kyua to version 0.20+ and adjust any calling code to work 841 with Kyuafile and kyua. 842 84320150614: 844 The import of openssl to address the FreeBSD-SA-15:10.openssl 845 security advisory includes a change which rejects handshakes 846 with DH parameters below 768 bits. sendmail releases prior 847 to 8.15.2 (not yet released), defaulted to a 512 bit 848 DH parameter setting for client connections. To work around 849 this interoperability, sendmail can be configured to use a 850 2048 bit DH parameter by: 851 852 1. Edit /etc/mail/`hostname`.mc 853 2. If a setting for confDH_PARAMETERS does not exist or 854 exists and is set to a string beginning with '5', 855 replace it with '2'. 856 3. If a setting for confDH_PARAMETERS exists and is set to 857 a file path, create a new file with: 858 openssl dhparam -out /path/to/file 2048 859 4. Rebuild the .cf file: 860 cd /etc/mail/; make; make install 861 5. Restart sendmail: 862 cd /etc/mail/; make restart 863 864 A sendmail patch is coming, at which time this file will be 865 updated. 866 86720150604: 868 Generation of legacy formatted entries have been disabled by default 869 in pwd_mkdb(8), as all base system consumers of the legacy formatted 870 entries were converted to use the new format by default when the new, 871 machine independent format have been added and supported since FreeBSD 872 5.x. 873 874 Please see the pwd_mkdb(8) manual page for further details. 875 87620150525: 877 Clang and llvm have been upgraded to 3.6.1 release. Please see the 878 20141231 entry below for information about prerequisites and upgrading, 879 if you are not already using 3.5.0 or higher. 880 88120150521: 882 TI platform code switched to using vendor DTS files and this update 883 may break existing systems running on Beaglebone, Beaglebone Black, 884 and Pandaboard: 885 886 - dtb files should be regenerated/reinstalled. Filenames are the 887 same but content is different now 888 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 889 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 890 addressing scheme is now pin 25 on /dev/gpioc3. 891 - Pandaboard: /etc/ttys should be updated, serial console device is 892 now /dev/ttyu2, not /dev/ttyu0 893 89420150501: 895 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 896 If you need the GNU extension from groff soelim(1), install groff 897 from package: pkg install groff, or via ports: textproc/groff. 898 89920150423: 900 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 901 defined in symlink(7); previously symlinks were silently ignored. 902 90320150415: 904 The const qualifier has been removed from iconv(3) to comply with 905 POSIX. The ports tree is aware of this from r384038 onwards. 906 90720150416: 908 Libraries specified by LIBADD in Makefiles must have a corresponding 909 DPADD_<lib> variable to ensure correct dependencies. This is now 910 enforced in src.libnames.mk. 911 91220150324: 913 From legacy ata(4) driver was removed support for SATA controllers 914 supported by more functional drivers ahci(4), siis(4) and mvs(4). 915 Kernel modules ataahci and ataadaptec were removed completely, 916 replaced by ahci and mvs modules respectively. 917 91820150315: 919 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 920 the 20141231 entry below for information about prerequisites and 921 upgrading, if you are not already using 3.5.0 or higher. 922 92320150307: 924 The 32-bit PowerPC kernel has been changed to a position-independent 925 executable. This can only be booted with a version of loader(8) 926 newer than January 31, 2015, so make sure to update both world and 927 kernel before rebooting. 928 92920150217: 930 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 931 but before r278950, the RNG was not seeded properly. Immediately 932 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 933 ssh keys or openssl keys) that were generated w/ a kernel from that 934 range. This does not affect programs that directly used /dev/random 935 or /dev/urandom. All userland uses of arc4random(3) are affected. 936 93720150210: 938 The autofs(4) ABI was changed in order to restore binary compatibility 939 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 940 with the new kernel. 941 94220150131: 943 The powerpc64 kernel has been changed to a position-independent 944 executable. This can only be booted with a new version of loader(8), 945 so make sure to update both world and kernel before rebooting. 946 94720150118: 948 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 949 only release, no new features have been added. Please see the 20141231 950 entry below for information about prerequisites and upgrading, if you 951 are not already using 3.5.0. 952 95320150107: 954 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 955 taken from the ELF Tool Chain project rather than GNU binutils. They 956 should be drop-in replacements, with the addition of arm64 support. 957 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 958 binutils tools, if necessary. See 20150805 for updated information. 959 96020150105: 961 The default Unbound configuration now enables remote control 962 using a local socket. Users who have already enabled the 963 local_unbound service should regenerate their configuration 964 by running "service local_unbound setup" as root. 965 96620150102: 967 The GNU texinfo and GNU info pages have been removed. 968 To be able to view GNU info pages please install texinfo from ports. 969 97020141231: 971 Clang, llvm and lldb have been upgraded to 3.5.0 release. 972 973 As of this release, a prerequisite for building clang, llvm and lldb is 974 a C++11 capable compiler and C++11 standard library. This means that to 975 be able to successfully build the cross-tools stage of buildworld, with 976 clang as the bootstrap compiler, your system compiler or cross compiler 977 should either be clang 3.3 or later, or gcc 4.8 or later, and your 978 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 979 later. 980 981 On any standard FreeBSD 10.x or 11.x installation, where clang and 982 libc++ are on by default (that is, on x86 or arm), this should work out 983 of the box. 984 985 On 9.x installations where clang is enabled by default, e.g. on x86 and 986 powerpc, libc++ will not be enabled by default, so libc++ should be 987 built (with clang) and installed first. If both clang and libc++ are 988 missing, build clang first, then use it to build libc++. 989 990 On 8.x and earlier installations, upgrade to 9.x first, and then follow 991 the instructions for 9.x above. 992 993 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 994 default, and do not build clang. 995 996 Many embedded systems are resource constrained, and will not be able to 997 build clang in a reasonable time, or in some cases at all. In those 998 cases, cross building bootable systems on amd64 is a workaround. 999 1000 This new version of clang introduces a number of new warnings, of which 1001 the following are most likely to appear: 1002 1003 -Wabsolute-value 1004 1005 This warns in two cases, for both C and C++: 1006 * When the code is trying to take the absolute value of an unsigned 1007 quantity, which is effectively a no-op, and almost never what was 1008 intended. The code should be fixed, if at all possible. If you are 1009 sure that the unsigned quantity can be safely cast to signed, without 1010 loss of information or undefined behavior, you can add an explicit 1011 cast, or disable the warning. 1012 1013 * When the code is trying to take an absolute value, but the called 1014 abs() variant is for the wrong type, which can lead to truncation. 1015 If you want to disable the warning instead of fixing the code, please 1016 make sure that truncation will not occur, or it might lead to unwanted 1017 side-effects. 1018 1019 -Wtautological-undefined-compare and 1020 -Wundefined-bool-conversion 1021 1022 These warn when C++ code is trying to compare 'this' against NULL, while 1023 'this' should never be NULL in well-defined C++ code. However, there is 1024 some legacy (pre C++11) code out there, which actively abuses this 1025 feature, which was less strictly defined in previous C++ versions. 1026 1027 Squid and openjdk do this, for example. The warning can be turned off 1028 for C++98 and earlier, but compiling the code in C++11 mode might result 1029 in unexpected behavior; for example, the parts of the program that are 1030 unreachable could be optimized away. 1031 103220141222: 1033 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 1034 kernel sources have been removed. The .h files remain, since some 1035 utilities include them. This will need to be fixed later. 1036 If "mount -t oldnfs ..." is attempted, it will fail. 1037 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 1038 the utilities will report errors. 1039 104020141121: 1041 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 1042 directories to top level SUBDIR variable when their parent 1043 directory is included in LOCAL_DIRS. Users with build systems with 1044 such hierarchies and without SUBDIR entries in the parent 1045 directory Makefiles should add them or add the directories to 1046 LOCAL_DIRS. 1047 104820141109: 1049 faith(4) and faithd(8) have been removed from the base system. Faith 1050 has been obsolete for a very long time. 1051 105220141104: 1053 vt(4), the new console driver, is enabled by default. It brings 1054 support for Unicode and double-width characters, as well as 1055 support for UEFI and integration with the KMS kernel video 1056 drivers. 1057 1058 You may need to update your console settings in /etc/rc.conf, 1059 most probably the keymap. During boot, /etc/rc.d/syscons will 1060 indicate what you need to do. 1061 1062 vt(4) still has issues and lacks some features compared to 1063 syscons(4). See the wiki for up-to-date information: 1064 https://wiki.freebsd.org/Newcons 1065 1066 If you want to keep using syscons(4), you can do so by adding 1067 the following line to /boot/loader.conf: 1068 kern.vty=sc 1069 107020141102: 1071 pjdfstest has been integrated into kyua as an opt-in test suite. 1072 Please see share/doc/pjdfstest/README for more details on how to 1073 execute it. 1074 107520141009: 1076 gperf has been removed from the base system for architectures 1077 that use clang. Ports that require gperf will obtain it from the 1078 devel/gperf port. 1079 108020140923: 1081 pjdfstest has been moved from tools/regression/pjdfstest to 1082 contrib/pjdfstest . 1083 108420140922: 1085 At svn r271982, The default linux compat kernel ABI has been adjusted 1086 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1087 update. If you wish to continue using the linux-f10 compat ports, 1088 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1089 encouraged to update their linux-compat packages to linux-c6 during 1090 their next update cycle. 1091 109220140729: 1093 The ofwfb driver, used to provide a graphics console on PowerPC when 1094 using vt(4), no longer allows mmap() of all physical memory. This 1095 will prevent Xorg on PowerPC with some ATI graphics cards from 1096 initializing properly unless x11-servers/xorg-server is updated to 1097 1.12.4_8 or newer. 1098 109920140723: 1100 The xdev targets have been converted to using TARGET and 1101 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1102 110320140719: 1104 The default unbound configuration has been modified to address 1105 issues with reverse lookups on networks that use private 1106 address ranges. If you use the local_unbound service, run 1107 "service local_unbound setup" as root to regenerate your 1108 configuration, then "service local_unbound reload" to load the 1109 new configuration. 1110 111120140709: 1112 The GNU texinfo and GNU info pages are not built and installed 1113 anymore, WITH_INFO knob has been added to allow to built and install 1114 them again. 1115 UPDATE: see 20150102 entry on texinfo's removal 1116 111720140708: 1118 The GNU readline library is now an INTERNALLIB - that is, it is 1119 statically linked into consumers (GDB and variants) in the base 1120 system, and the shared library is no longer installed. The 1121 devel/readline port is available for third party software that 1122 requires readline. 1123 112420140702: 1125 The Itanium architecture (ia64) has been removed from the list of 1126 known architectures. This is the first step in the removal of the 1127 architecture. 1128 112920140701: 1130 Commit r268115 has added NFSv4.1 server support, merged from 1131 projects/nfsv4.1-server. Since this includes changes to the 1132 internal interfaces between the NFS related modules, a full 1133 build of the kernel and modules will be necessary. 1134 __FreeBSD_version has been bumped. 1135 113620140629: 1137 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1138 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1139 which differs from the behaviour controlled by this knob.) 1140 114120140619: 1142 Maximal length of the serial number in CTL was increased from 16 to 1143 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1144 and ctld, need to be rebuilt to work with a new kernel. 1145 114620140606: 1147 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1148 1 respectively to match the upstream numbers. They were out of 1149 sync because, when they were originally added to FreeBSD, the 1150 upstream versions were not respected. These libraries are private 1151 and not yet built by default, so renumbering them should be a 1152 non-issue. However, unclean source trees will yield broken test 1153 programs once the operator executes "make delete-old-libs" after a 1154 "make installworld". 1155 1156 Additionally, the atf-sh binary was made private by moving it into 1157 /usr/libexec/. Already-built shell test programs will keep the 1158 path to the old binary so they will break after "make delete-old" 1159 is run. 1160 1161 If you are using WITH_TESTS=yes (not the default), wipe the object 1162 tree and rebuild from scratch to prevent spurious test failures. 1163 This is only needed once: the misnumbered libraries and misplaced 1164 binaries have been added to OptionalObsoleteFiles.inc so they will 1165 be removed during a clean upgrade. 1166 116720140512: 1168 Clang and llvm have been upgraded to 3.4.1 release. 1169 117020140508: 1171 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1172 be removed to avoid issues in the future (and has been added to 1173 ObsoleteFiles.inc). 1174 117520140505: 1176 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1177 past, it affected all builds that used the bsd.*.mk files. The old 1178 behavior was a bug, but people may have relied upon it. To get this 1179 behavior back, you can .include /etc/src.conf from /etc/make.conf 1180 (which is still global and isn't changed). This also changes the 1181 behavior of incremental builds inside the tree of individual 1182 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1183 Although this has survived make universe and some upgrade scenarios, 1184 other upgrade scenarios may have broken. At least one form of 1185 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1186 as well... In cases where MAKESYSPATH isn't working with this 1187 setting, you'll need to set it to the full path to your tree. 1188 1189 One side effect of all this cleaning up is that bsd.compiler.mk 1190 is no longer implicitly included by bsd.own.mk. If you wish to 1191 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1192 as well. 1193 119420140430: 1195 The lindev device has been removed since /dev/full has been made a 1196 standard device. __FreeBSD_version has been bumped. 1197 119820140424: 1199 The knob WITHOUT_VI was added to the base system, which controls 1200 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1201 in order to reorder files share/termcap and didn't build ex(1) as a 1202 build tool, so building/installing with WITH_VI is highly advised for 1203 build hosts for older releases. 1204 1205 This issue has been fixed in stable/9 and stable/10 in r277022 and 1206 r276991, respectively. 1207 120820140418: 1209 The YES_HESIOD knob has been removed. It has been obsolete for 1210 a decade. Please move to using WITH_HESIOD instead or your builds 1211 will silently lack HESIOD. 1212 121320140405: 1214 The uart(4) driver has been changed with respect to its handling 1215 of the low-level console. Previously the uart(4) driver prevented 1216 any process from changing the baudrate or the CLOCAL and HUPCL 1217 control flags. By removing the restrictions, operators can make 1218 changes to the serial console port without having to reboot. 1219 However, when getty(8) is started on the serial device that is 1220 associated with the low-level console, a misconfigured terminal 1221 line in /etc/ttys will now have a real impact. 1222 Before upgrading the kernel, make sure that /etc/ttys has the 1223 serial console device configured as 3wire without baudrate to 1224 preserve the previous behaviour. E.g: 1225 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1226 122720140306: 1228 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1229 to improve performance. To re-enable it, if needed, run rpcbind 1230 with command line option -W. 1231 123220140226: 1233 Switched back to the GPL dtc compiler due to updates in the upstream 1234 dts files not being supported by the BSDL dtc compiler. You will need 1235 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1236 may result while building dtb files during a kernel build if you fail 1237 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1238 123920140216: 1240 Clang and llvm have been upgraded to 3.4 release. 1241 124220140216: 1243 The nve(4) driver has been removed. Please use the nfe(4) driver 1244 for NVIDIA nForce MCP Ethernet adapters instead. 1245 124620140212: 1247 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1248 This could cause certain C++ applications using shared libraries built 1249 against the previous version of libc++ to crash. The incompatibility 1250 has now been fixed, but any C++ applications or shared libraries built 1251 between r261283 and r261801 should be recompiled. 1252 125320140204: 1254 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1255 capability mode support. Please note that enabling the feature in 1256 kernel is still highly recommended. 1257 125820140131: 1259 OpenSSH is now built with sandbox support, and will use sandbox as 1260 the default privilege separation method. This requires Capsicum 1261 capability mode support in kernel. 1262 126320140128: 1264 The libelf and libdwarf libraries have been updated to newer 1265 versions from upstream. Shared library version numbers for 1266 these two libraries were bumped. Any ports or binaries 1267 requiring these two libraries should be recompiled. 1268 __FreeBSD_version is bumped to 1100006. 1269 127020140110: 1271 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1272 instead of providing an explicit one, this would prevent such 1273 Makefile from providing its own Kyuafile in the future during 1274 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1275 intervention is needed to clean an objdir if you use NO_CLEAN: 1276 # find /usr/obj -name Kyuafile | xargs rm -f 1277 127820131213: 1279 The behavior of gss_pseudo_random() for the krb5 mechanism 1280 has changed, for applications requesting a longer random string 1281 than produced by the underlying enctype's pseudo-random() function. 1282 In particular, the random string produced from a session key of 1283 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1284 be different at the 17th octet and later, after this change. 1285 The counter used in the PRF+ construction is now encoded as a 1286 big-endian integer in accordance with RFC 4402. 1287 __FreeBSD_version is bumped to 1100004. 1288 128920131108: 1290 The WITHOUT_ATF build knob has been removed and its functionality 1291 has been subsumed into the more generic WITHOUT_TESTS. If you were 1292 using the former to disable the build of the ATF libraries, you 1293 should change your settings to use the latter. 1294 129520131025: 1296 The default version of mtree is nmtree which is obtained from 1297 NetBSD. The output is generally the same, but may vary 1298 slightly. If you found you need identical output adding 1299 "-F freebsd9" to the command line should do the trick. For the 1300 time being, the old mtree is available as fmtree. 1301 130220131014: 1303 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1304 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1305 1.1.4_8 and verify bsdyml not linked in, before running "make 1306 delete-old-libs": 1307 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1308 or 1309 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1310 131120131010: 1312 The stable/10 branch has been created in subversion from head 1313 revision r256279. 1314 131520131010: 1316 The rc.d/jail script has been updated to support jail(8) 1317 configuration file. The "jail_<jname>_*" rc.conf(5) variables 1318 for per-jail configuration are automatically converted to 1319 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 1320 This is transparently backward compatible. See below about some 1321 incompatibilities and rc.conf(5) manual page for more details. 1322 1323 These variables are now deprecated in favor of jail(8) configuration 1324 file. One can use "rc.d/jail config <jname>" command to generate 1325 a jail(8) configuration file in /var/run/jail.<jname>.conf without 1326 running the jail(8) utility. The default pathname of the 1327 configuration file is /etc/jail.conf and can be specified by 1328 using $jail_conf or $jail_<jname>_conf variables. 1329 1330 Please note that jail_devfs_ruleset accepts an integer at 1331 this moment. Please consider to rewrite the ruleset name 1332 with an integer. 1333 133420130930: 1335 BIND has been removed from the base system. If all you need 1336 is a local resolver, simply enable and start the local_unbound 1337 service instead. Otherwise, several versions of BIND are 1338 available in the ports tree. The dns/bind99 port is one example. 1339 1340 With this change, nslookup(1) and dig(1) are no longer in the base 1341 system. Users should instead use host(1) and drill(1) which are 1342 in the base system. Alternatively, nslookup and dig can 1343 be obtained by installing the dns/bind-tools port. 1344 134520130916: 1346 With the addition of unbound(8), a new unbound user is now 1347 required during installworld. "mergemaster -p" can be used to 1348 add the user prior to installworld, as documented in the handbook. 1349 135020130911: 1351 OpenSSH is now built with DNSSEC support, and will by default 1352 silently trust signed SSHFP records. This can be controlled with 1353 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1354 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1355 135620130906: 1357 The GNU Compiler Collection and C++ standard library (libstdc++) 1358 are no longer built by default on platforms where clang is the system 1359 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1360 options in src.conf. 1361 136220130905: 1363 The PROCDESC kernel option is now part of the GENERIC kernel 1364 configuration and is required for the rwhod(8) to work. 1365 If you are using custom kernel configuration, you should include 1366 'options PROCDESC'. 1367 136820130905: 1369 The API and ABI related to the Capsicum framework was modified 1370 in backward incompatible way. The userland libraries and programs 1371 have to be recompiled to work with the new kernel. This includes the 1372 following libraries and programs, but the whole buildworld is 1373 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1374 kdump, procstat, rwho, rwhod, uniq. 1375 137620130903: 1377 AES-NI intrinsic support has been added to gcc. The AES-NI module 1378 has been updated to use this support. A new gcc is required to build 1379 the aesni module on both i386 and amd64. 1380 138120130821: 1382 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1383 Thus "device padlock_rng" and "device rdrand_rng" should be 1384 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1385 138620130813: 1387 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1388 enables just the iconv* functionality and is now on by default. 1389 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1390 compatibility. Set WITHOUT_ICONV to build the old way. 1391 If you have been using WITH_ICONV before, you will very likely 1392 need to turn on WITH_LIBICONV_COMPAT. 1393 139420130806: 1395 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1396 Illumos origin, including ZFS. If you have INVARIANTS in your 1397 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1398 explicitly. 1399 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1400 locks if WITNESS option was set. Because that generated a lot of 1401 witness(9) reports and all of them were believed to be false 1402 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1403 can be used to achieve the previous behavior. 1404 140520130806: 1406 Timer values in IPv6 data structures now use time_uptime instead 1407 of time_second. Although this is not a user-visible functional 1408 change, userland utilities which directly use them---ndp(8), 1409 rtadvd(8), and rtsold(8) in the base system---need to be updated 1410 to r253970 or later. 1411 141220130802: 1413 find -delete can now delete the pathnames given as arguments, 1414 instead of only files found below them or if the pathname did 1415 not contain any slashes. Formerly, the following error message 1416 would result: 1417 1418 find: -delete: <path>: relative path potentially not safe 1419 1420 Deleting the pathnames given as arguments can be prevented 1421 without error messages using -mindepth 1 or by changing 1422 directory and passing "." as argument to find. This works in the 1423 old as well as the new version of find. 1424 142520130726: 1426 Behavior of devfs rules path matching has been changed. 1427 Pattern is now always matched against fully qualified devfs 1428 path and slash characters must be explicitly matched by 1429 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1430 subdirectories must be reviewed. 1431 143220130716: 1433 The default ARM ABI has changed to the ARM EABI. The old ABI is 1434 incompatible with the ARM EABI and all programs and modules will 1435 need to be rebuilt to work with a new kernel. 1436 1437 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1438 1439 NOTE: Support for the old ABI will be removed in the future and 1440 users are advised to upgrade. 1441 144220130709: 1443 pkg_install has been disconnected from the build if you really need it 1444 you should add WITH_PKGTOOLS in your src.conf(5). 1445 144620130709: 1447 Most of network statistics structures were changed to be able 1448 keep 64-bits counters. Thus all tools, that work with networking 1449 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1450 145120130618: 1452 Fix a bug that allowed a tracing process (e.g. gdb) to write 1453 to a memory-mapped file in the traced process's address space 1454 even if neither the traced process nor the tracing process had 1455 write access to that file. 1456 145720130615: 1458 CVS has been removed from the base system. An exact copy 1459 of the code is available from the devel/cvs port. 1460 146120130613: 1462 Some people report the following error after the switch to bmake: 1463 1464 make: illegal option -- J 1465 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1466 ... 1467 *** [buildworld] Error code 2 1468 1469 this likely due to an old instance of make in 1470 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1471 which src/Makefile will use that blindly, if it exists, so if 1472 you see the above error: 1473 1474 rm -rf `make -V MAKEPATH` 1475 1476 should resolve it. 1477 147820130516: 1479 Use bmake by default. 1480 Whereas before one could choose to build with bmake via 1481 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1482 make. The goal is to remove these knobs for 10-RELEASE. 1483 1484 It is worth noting that bmake (like gmake) treats the command 1485 line as the unit of failure, rather than statements within the 1486 command line. Thus '(cd some/where && dosomething)' is safer 1487 than 'cd some/where; dosomething'. The '()' allows consistent 1488 behavior in parallel build. 1489 149020130429: 1491 Fix a bug that allows NFS clients to issue READDIR on files. 1492 149320130426: 1494 The WITHOUT_IDEA option has been removed because 1495 the IDEA patent expired. 1496 149720130426: 1498 The sysctl which controls TRIM support under ZFS has been renamed 1499 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1500 enabled by default. 1501 150220130425: 1503 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1504 rather than creating it's own in the temporary directory in 1505 order allow access to bootstrapped versions of tools such as 1506 install and mtree. When upgrading from version of FreeBSD where 1507 the install command does not support -l, you will need to 1508 install a new mergemaster command if mergemaster -p is required. 1509 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1510 && make install). 1511 151220130404: 1513 Legacy ATA stack, disabled and replaced by new CAM-based one since 1514 FreeBSD 9.0, completely removed from the sources. Kernel modules 1515 atadisk and atapi*, user-level tools atacontrol and burncd are 1516 removed. Kernel option `options ATA_CAM` is now permanently enabled 1517 and removed. 1518 151920130319: 1520 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1521 and socketpair(2). Software, in particular Kerberos, may 1522 automatically detect and use these during building. The resulting 1523 binaries will not work on older kernels. 1524 152520130308: 1526 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1527 information, see the respective 20130304 entry). 1528 152920130304: 1530 Recent commits to callout(9) changed the size of struct callout, 1531 so the KBI is probably heavily disturbed. Also, some functions 1532 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1533 by macros. Every kernel module using it won't load, so rebuild 1534 is requested. 1535 1536 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1537 but does not initialize by default (because of the new CTL_DISABLE 1538 option) to save memory. To re-enable it, remove the CTL_DISABLE 1539 option from the kernel config file or set kern.cam.ctl.disable=0 1540 in /boot/loader.conf. 1541 154220130301: 1543 The ctl device has been disabled in GENERIC for i386 and amd64. 1544 This was done due to the extra memory being allocated at system 1545 initialisation time by the ctl driver which was only used if 1546 a CAM target device was created. This makes a FreeBSD system 1547 unusable on 128MB or less of RAM. 1548 154920130208: 1550 A new compression method (lz4) has been merged to -HEAD. Please 1551 refer to zpool-features(7) for more information. 1552 1553 Please refer to the "ZFS notes" section of this file for information 1554 on upgrading boot ZFS pools. 1555 155620130129: 1557 A BSD-licensed patch(1) variant has been added and is installed 1558 as bsdpatch, being the GNU version the default patch. 1559 To inverse the logic and use the BSD-licensed one as default, 1560 while having the GNU version installed as gnupatch, rebuild 1561 and install world with the WITH_BSD_PATCH knob set. 1562 156320130121: 1564 Due to the use of the new -l option to install(1) during build 1565 and install, you must take care not to directly set the INSTALL 1566 make variable in your /etc/make.conf, /etc/src.conf, or on the 1567 command line. If you wish to use the -C flag for all installs 1568 you may be able to add INSTALL+=-C to /etc/make.conf or 1569 /etc/src.conf. 1570 157120130118: 1572 The install(1) option -M has changed meaning and now takes an 1573 argument that is a file or path to append logs to. In the 1574 unlikely event that -M was the last option on the command line 1575 and the command line contained at least two files and a target 1576 directory the first file will have logs appended to it. The -M 1577 option served little practical purpose in the last decade so its 1578 use is expected to be extremely rare. 1579 158020121223: 1581 After switching to Clang as the default compiler some users of ZFS 1582 on i386 systems started to experience stack overflow kernel panics. 1583 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1584 158520121222: 1586 GEOM_LABEL now mangles label names read from file system metadata. 1587 Mangling affect labels containing spaces, non-printable characters, 1588 '%' or '"'. Device names in /etc/fstab and other places may need to 1589 be updated. 1590 159120121217: 1592 By default, only the 10 most recent kernel dumps will be saved. To 1593 restore the previous behaviour (no limit on the number of kernel dumps 1594 stored in the dump directory) add the following line to /etc/rc.conf: 1595 1596 savecore_flags="" 1597 159820121201: 1599 With the addition of auditdistd(8), a new auditdistd user is now 1600 required during installworld. "mergemaster -p" can be used to 1601 add the user prior to installworld, as documented in the handbook. 1602 160320121117: 1604 The sin6_scope_id member variable in struct sockaddr_in6 is now 1605 filled by the kernel before passing the structure to the userland via 1606 sysctl or routing socket. This means the KAME-specific embedded scope 1607 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1608 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1609 __FreeBSD_version is bumped to 1000025. 1610 161120121105: 1612 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1613 This means that the world and kernel will be compiled with clang 1614 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1615 and /usr/bin/cpp. To disable this behavior and revert to building 1616 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1617 of current may need to bootstrap WITHOUT_CLANG first if the clang 1618 build fails (its compatibility window doesn't extend to the 9 stable 1619 branch point). 1620 162120121102: 1622 The IPFIREWALL_FORWARD kernel option has been removed. Its 1623 functionality now turned on by default. 1624 162520121023: 1626 The ZERO_COPY_SOCKET kernel option has been removed and 1627 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1628 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1629 mechanism which is not safe and may result in kernel crashes. 1630 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1631 driver supports disposeable external page sized mbuf storage. 1632 Proper replacements for both zero-copy mechanisms are under 1633 consideration and will eventually lead to complete removal 1634 of the two kernel options. 1635 163620121023: 1637 The IPv4 network stack has been converted to network byte 1638 order. The following modules need to be recompiled together 1639 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1640 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1641 164220121022: 1643 Support for non-MPSAFE filesystems was removed from VFS. The 1644 VFS_VERSION was bumped, all filesystem modules shall be 1645 recompiled. 1646 164720121018: 1648 All the non-MPSAFE filesystems have been disconnected from 1649 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1650 portalfs, smbfs, xfs. 1651 165220121016: 1653 The interface cloning API and ABI has changed. The following 1654 modules need to be recompiled together with kernel: 1655 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1656 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1657 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1658 165920121015: 1660 The sdhci driver was split in two parts: sdhci (generic SD Host 1661 Controller logic) and sdhci_pci (actual hardware driver). 1662 No kernel config modifications are required, but if you 1663 load sdhc as a module you must switch to sdhci_pci instead. 1664 166520121014: 1666 Import the FUSE kernel and userland support into base system. 1667 166820121013: 1669 The GNU sort(1) program has been removed since the BSD-licensed 1670 sort(1) has been the default for quite some time and no serious 1671 problems have been reported. The corresponding WITH_GNU_SORT 1672 knob has also gone. 1673 167420121006: 1675 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1676 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1677 with new kernel. 1678 167920121001: 1680 The net80211(4) ABI has been changed to allow for improved driver 1681 PS-POLL and power-save support. All wireless drivers need to be 1682 recompiled to work with the new kernel. 1683 168420120913: 1685 The random(4) support for the VIA hardware random number 1686 generator (`PADLOCK') is no longer enabled unconditionally. 1687 Add the padlock_rng device in the custom kernel config if 1688 needed. The GENERIC kernels on i386 and amd64 do include the 1689 device, so the change only affects the custom kernel 1690 configurations. 1691 169220120908: 1693 The pf(4) packet filter ABI has been changed. pfctl(8) and 1694 snmp_pf module need to be recompiled to work with new kernel. 1695 169620120828: 1697 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1698 to -HEAD. Pools that have empty_bpobj in active state can not be 1699 imported read-write with ZFS implementations that do not support 1700 this feature. For more information read the zpool-features(5) 1701 manual page. 1702 170320120727: 1704 The sparc64 ZFS loader has been changed to no longer try to auto- 1705 detect ZFS providers based on diskN aliases but now requires these 1706 to be explicitly listed in the OFW boot-device environment variable. 1707 170820120712: 1709 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1710 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1711 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1712 171320120712: 1714 The following sysctls and tunables have been renamed for consistency 1715 with other variables: 1716 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1717 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1718 171920120628: 1720 The sort utility has been replaced with BSD sort. For now, GNU sort 1721 is also available as "gnusort" or the default can be set back to 1722 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1723 installed as "bsdsort". 1724 172520120611: 1726 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1727 Starting with this version the old system of ZFS pool versioning 1728 is superseded by "feature flags". This concept enables forward 1729 compatibility against certain future changes in functionality of ZFS 1730 pools. The first read-only compatible "feature flag" for ZFS pools 1731 is named "com.delphix:async_destroy". For more information 1732 read the new zpool-features(5) manual page. 1733 Please refer to the "ZFS notes" section of this file for information 1734 on upgrading boot ZFS pools. 1735 173620120417: 1737 The malloc(3) implementation embedded in libc now uses sources imported 1738 as contrib/jemalloc. The most disruptive API change is to 1739 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1740 delete it prior to installworld, and optionally re-create it using the 1741 new format after rebooting. See malloc.conf(5) for details 1742 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1743 NAMESPACE section). 1744 174520120328: 1746 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1747 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1748 now spelled mips. This is to aid compatibility with third-party 1749 software that expects this naming scheme in uname(3). Little-endian 1750 settings are unchanged. If you are updating a big-endian mips64 machine 1751 from before this change, you may need to set MACHINE_ARCH=mips64 in 1752 your environment before the new build system will recognize your machine. 1753 175420120306: 1755 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1756 platforms. 1757 175820120229: 1759 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1760 nullfs(5) did not pass through all behaviours to the underlying layer, 1761 as a result if we bound to a socket on the lower layer we could connect 1762 only to the lower path; if we bound to the upper layer we could connect 1763 only to the upper path. The new behavior is one can connect to both the 1764 lower and the upper paths regardless what layer path one binds to. 1765 176620120211: 1767 The getifaddrs upgrade path broken with 20111215 has been restored. 1768 If you have upgraded in between 20111215 and 20120209 you need to 1769 recompile libc again with your kernel. You still need to recompile 1770 world to be able to configure CARP but this restriction already 1771 comes from 20111215. 1772 177320120114: 1774 The set_rcvar() function has been removed from /etc/rc.subr. All 1775 base and ports rc.d scripts have been updated, so if you have a 1776 port installed with a script in /usr/local/etc/rc.d you can either 1777 hand-edit the rcvar= line, or reinstall the port. 1778 1779 An easy way to handle the mass-update of /etc/rc.d: 1780 rm /etc/rc.d/* && mergemaster -i 1781 178220120109: 1783 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1784 on the current CPU and prevents other threads from running. 1785 This behavior can be reverted using the kern.stop_scheduler_on_panic 1786 tunable/sysctl. 1787 The new behavior can be incompatible with kern.sync_on_panic. 1788 178920111215: 1790 The carp(4) facility has been changed significantly. Configuration 1791 of the CARP protocol via ifconfig(8) has changed, as well as format 1792 of CARP events submitted to devd(8) has changed. See manual pages 1793 for more information. The arpbalance feature of carp(4) is currently 1794 not supported anymore. 1795 1796 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1797 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1798 need to be recompiled. 1799 180020111122: 1801 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1802 /dev/wmistat0. 1803 180420111108: 1805 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1806 explicitely support non-MPSAFE filesystems. 1807 It is on by default for all supported platform at this present 1808 time. 1809 181020111101: 1811 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1812 i386 and pc98 GENERIC kernel configuration files. 1813 181420110930: 1815 sysinstall has been removed 1816 181720110923: 1818 The stable/9 branch created in subversion. This corresponds to the 1819 RELENG_9 branch in CVS. 1820 1821COMMON ITEMS: 1822 1823 General Notes 1824 ------------- 1825 Avoid using make -j when upgrading. While generally safe, there are 1826 sometimes problems using -j to upgrade. If your upgrade fails with 1827 -j, please try again without -j. From time to time in the past there 1828 have been problems using -j with buildworld and/or installworld. This 1829 is especially true when upgrading between "distant" versions (eg one 1830 that cross a major release boundary or several minor releases, or when 1831 several months have passed on the -current branch). 1832 1833 Sometimes, obscure build problems are the result of environment 1834 poisoning. This can happen because the make utility reads its 1835 environment when searching for values for global variables. To run 1836 your build attempts in an "environmental clean room", prefix all make 1837 commands with 'env -i '. See the env(1) manual page for more details. 1838 1839 When upgrading from one major version to another it is generally best to 1840 upgrade to the latest code in the currently installed branch first, then 1841 do an upgrade to the new branch. This is the best-tested upgrade path, 1842 and has the highest probability of being successful. Please try this 1843 approach if you encounter problems with a major version upgrade. Since 1844 the stable 4.x branch point, one has generally been able to upgade from 1845 anywhere in the most recent stable branch to head / current (or even the 1846 last couple of stable branches). See the top of this file when there's 1847 an exception. 1848 1849 When upgrading a live system, having a root shell around before 1850 installing anything can help undo problems. Not having a root shell 1851 around can lead to problems if pam has changed too much from your 1852 starting point to allow continued authentication after the upgrade. 1853 1854 This file should be read as a log of events. When a later event changes 1855 information of a prior event, the prior event should not be deleted. 1856 Instead, a pointer to the entry with the new information should be 1857 placed in the old entry. Readers of this file should also sanity check 1858 older entries before relying on them blindly. Authors of new entries 1859 should write them with this in mind. 1860 1861 ZFS notes 1862 --------- 1863 When upgrading the boot ZFS pool to a new version, always follow 1864 these two steps: 1865 1866 1.) recompile and reinstall the ZFS boot loader and boot block 1867 (this is part of "make buildworld" and "make installworld") 1868 1869 2.) update the ZFS boot block on your boot drive 1870 1871 The following example updates the ZFS boot block on the first 1872 partition (freebsd-boot) of a GPT partitioned drive ada0: 1873 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1874 1875 Non-boot pools do not need these updates. 1876 1877 To build a kernel 1878 ----------------- 1879 If you are updating from a prior version of FreeBSD (even one just 1880 a few days old), you should follow this procedure. It is the most 1881 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1882 1883 make kernel-toolchain 1884 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1885 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1886 1887 To test a kernel once 1888 --------------------- 1889 If you just want to boot a kernel once (because you are not sure 1890 if it works, or if you want to boot a known bad kernel to provide 1891 debugging information) run 1892 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1893 nextboot -k testkernel 1894 1895 To rebuild everything and install it on the current system. 1896 ----------------------------------------------------------- 1897 # Note: sometimes if you are running current you gotta do more than 1898 # is listed here if you are upgrading from a really old current. 1899 1900 <make sure you have good level 0 dumps> 1901 make buildworld 1902 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1903 make installkernel KERNCONF=YOUR_KERNEL_HERE 1904 [1] 1905 <reboot in single user> [3] 1906 mergemaster -Fp [5] 1907 make installworld 1908 mergemaster -Fi [4] 1909 make delete-old [6] 1910 <reboot> 1911 1912 To cross-install current onto a separate partition 1913 -------------------------------------------------- 1914 # In this approach we use a separate partition to hold 1915 # current's root, 'usr', and 'var' directories. A partition 1916 # holding "/", "/usr" and "/var" should be about 2GB in 1917 # size. 1918 1919 <make sure you have good level 0 dumps> 1920 <boot into -stable> 1921 make buildworld 1922 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1923 <maybe newfs current's root partition> 1924 <mount current's root partition on directory ${CURRENT_ROOT}> 1925 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1926 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1927 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1928 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1929 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1930 <reboot into current> 1931 <do a "native" rebuild/install as described in the previous section> 1932 <maybe install compatibility libraries from ports/misc/compat*> 1933 <reboot> 1934 1935 1936 To upgrade in-place from stable to current 1937 ---------------------------------------------- 1938 <make sure you have good level 0 dumps> 1939 make buildworld [9] 1940 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1941 [1] 1942 <reboot in single user> [3] 1943 mergemaster -Fp [5] 1944 make installworld 1945 mergemaster -Fi [4] 1946 make delete-old [6] 1947 <reboot> 1948 1949 Make sure that you've read the UPDATING file to understand the 1950 tweaks to various things you need. At this point in the life 1951 cycle of current, things change often and you are on your own 1952 to cope. The defaults can also change, so please read ALL of 1953 the UPDATING entries. 1954 1955 Also, if you are tracking -current, you must be subscribed to 1956 freebsd-current@freebsd.org. Make sure that before you update 1957 your sources that you have read and understood all the recent 1958 messages there. If in doubt, please track -stable which has 1959 much fewer pitfalls. 1960 1961 [1] If you have third party modules, such as vmware, you 1962 should disable them at this point so they don't crash your 1963 system on reboot. 1964 1965 [3] From the bootblocks, boot -s, and then do 1966 fsck -p 1967 mount -u / 1968 mount -a 1969 cd src 1970 adjkerntz -i # if CMOS is wall time 1971 Also, when doing a major release upgrade, it is required that 1972 you boot into single user mode to do the installworld. 1973 1974 [4] Note: This step is non-optional. Failure to do this step 1975 can result in a significant reduction in the functionality of the 1976 system. Attempting to do it by hand is not recommended and those 1977 that pursue this avenue should read this file carefully, as well 1978 as the archives of freebsd-current and freebsd-hackers mailing lists 1979 for potential gotchas. The -U option is also useful to consider. 1980 See mergemaster(8) for more information. 1981 1982 [5] Usually this step is a noop. However, from time to time 1983 you may need to do this if you get unknown user in the following 1984 step. It never hurts to do it all the time. You may need to 1985 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1986 install) after the buildworld before this step if you last updated 1987 from current before 20130425 or from -stable before 20130430. 1988 1989 [6] This only deletes old files and directories. Old libraries 1990 can be deleted by "make delete-old-libs", but you have to make 1991 sure that no program is using those libraries anymore. 1992 1993 [8] In order to have a kernel that can run the 4.x binaries needed to 1994 do an installworld, you must include the COMPAT_FREEBSD4 option in 1995 your kernel. Failure to do so may leave you with a system that is 1996 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1997 required to run the 5.x binaries on more recent kernels. And so on 1998 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1999 2000 Make sure that you merge any new devices from GENERIC since the 2001 last time you updated your kernel config file. 2002 2003 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2004 "?=" instead of the "=" assignment operator, so that buildworld can 2005 override the CPUTYPE if it needs to. 2006 2007 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2008 not on the command line, or in /etc/make.conf. buildworld will 2009 warn if it is improperly defined. 2010FORMAT: 2011 2012This file contains a list, in reverse chronological order, of major 2013breakages in tracking -current. It is not guaranteed to be a complete 2014list of such breakages, and only contains entries since September 23, 2011. 2015If you need to see UPDATING entries from before that date, you will need 2016to fetch an UPDATING file from an older FreeBSD release. 2017 2018Copyright information: 2019 2020Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2021 2022Redistribution, publication, translation and use, with or without 2023modification, in full or in part, in any form or format of this 2024document are permitted without further permission from the author. 2025 2026THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2027IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2028WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2029DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2030INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2031(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2032SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2033HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2034STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2035IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2036POSSIBILITY OF SUCH DAMAGE. 2037 2038Contact Warner Losh if you have any questions about your use of 2039this document. 2040 2041$FreeBSD$ 2042