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 5420171125: 55 PowerPC users must update loader(8) by rebuilding world before 56 installing a new kernel, as the protocol connecting them has 57 changed. Without the update, loader metadata will not be passed 58 successfully to the kernel and users will have to enter their 59 root partition at the kernel mountroot prompt to continue booting. 60 Newer versions of loader can boot old kernels without issue. 61 6220171110: 63 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to 64 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed 65 to WITH/OUT_LOADER_GELI. 66 6720171106: 68 The naive and non-compliant support of posix_fallocate(2) in ZFS 69 has been removed as of r325320. The system call now returns EINVAL 70 when used on a ZFS file. Although the new behavior complies with the 71 standard, some consumers are not prepared to cope with it. 72 One known victim is lld prior to r325420. 73 7420171102: 75 Building in a FreeBSD src checkout will automatically create object 76 directories now rather than store files in the current directory if 77 'make obj' was not ran. Calling 'make obj' is no longer necessary. 78 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in 79 /etc/src-env.conf (not /etc/src.conf), or passing the option in the 80 environment. 81 8220171101: 83 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native 84 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified 85 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old 86 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf, 87 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building. 88 The UNIFIED_OBJDIR option is a transitional feature that will be 89 removed for 12.0 release; please migrate to the new format for any 90 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather 91 than hardcoding paths. 92 9320171028: 94 The native-xtools target no longer installs the files by default to the 95 OBJDIR. Use the native-xtools-install target with a DESTDIR to install 96 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin. 97 9820171021: 99 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 100 options are changing from controlling the build if defined / undefined 101 to controlling the build with explicit 'yes' or 'no' values. They will 102 shift to WITH/WITHOUT options to match other options in the system. 103 10420171010: 105 libstand has turned into a private library for sys/boot use only. 106 It is no longer supported as a public interface outside of sys/boot. 107 10820171005: 109 The arm port has split armv6 into armv6 and armv7. armv7 is now 110 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 111 and are running a kernel from before r324363, you will need to add 112 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 113 11420171003: 115 When building multiple kernels using KERNCONF, non-existent KERNCONF 116 files will produce an error and buildkernel will fail. Previously 117 missing KERNCONF files silently failed giving no indication as to 118 why, only to subsequently discover during installkernel that the 119 desired kernel was never built in the first place. 120 12120170912: 122 The default serial number format for CTL LUNs has changed. This will 123 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 124 or iSCSI clients care about their LUNs' serial numbers. Users who 125 require serial number stability should hardcode serial numbers in 126 /etc/ctl.conf . 127 12820170912: 129 For 32-bit arm compiled for hard-float support, soft-floating point 130 binaries now always get their shared libraries from 131 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 132 /usr/libsoft also existed). Only users with a hard-float ld.so, but 133 soft-float everything else should be affected. 134 13520170826: 136 The geli password typed at boot is now hidden. To restore the previous 137 behavior, see geli(8) for configuration options. 138 13920170825: 140 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 141 sysctl values. Minor nit, but requires a rebuild of both world/kernel 142 to complete. 143 14420170814: 145 "make check" behavior (made in ^/head@r295380) has been changed to 146 execute from a limited sandbox, as opposed to executing from 147 ${TESTSDIR}. 148 149 Behavioral changes: 150 - The "beforecheck" and "aftercheck" targets are now specified. 151 - ${CHECKDIR} (added in commit noted above) has been removed. 152 - Legacy behavior can be enabled by setting 153 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 154 155 If the limited sandbox mode is enabled, "make check" will execute 156 "make distribution", then install, execute the tests, and clean up the 157 sandbox if successful. 158 159 The "make distribution" and "make install" targets are typically run as 160 root to set appropriate permissions and ownership at installation time. 161 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 162 environment if executing "make check" with limited sandbox mode using 163 an unprivileged user. 164 16520170808: 166 Since the switch to GPT disk labels, fsck for UFS/FFS has been 167 unable to automatically find alternate superblocks. As of r322297, 168 the information needed to find alternate superblocks has been 169 moved to the end of the area reserved for the boot block. 170 Filesystems created with a newfs of this vintage or later 171 will create the recovery information. If you have a filesystem 172 created prior to this change and wish to have a recovery block 173 created for your filesystem, you can do so by running fsck in 174 forground mode (i.e., do not use the -p or -y options). As it 175 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 176 to which you should answer yes. 177 17820170728: 179 As of r321665, an NFSv4 server configuration that services 180 Kerberos mounts or clients that do not support the uid/gid in 181 owner/owner_group string capability, must explicitly enable 182 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 183 machine's /etc/rc.conf file. 184 18520170722: 186 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 187 Please see the 20141231 entry below for information about prerequisites 188 and upgrading, if you are not already using clang 3.5.0 or higher. 189 19020170701: 191 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 192 r-commands (rlogin, rsh, etc.) to be built with the base system. 193 19420170625: 195 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 196 a very major ABI incompatible change, so users of FreeBSD/powerpc must 197 be careful when performing source upgrades. It is best to run 198 'make installworld' from an alternate root system, either a live 199 CD/memory stick, or a temporary root partition. Additionally, all ports 200 must be recompiled. powerpc64 is largely unaffected, except in the case 201 of 32-bit compatibility. All 32-bit binaries will be affected. 202 20320170623: 204 Forward compatibility for the "ino64" project have been committed. This 205 will allow most new binaries to run on older kernels in a limited 206 fashion. This prevents many of the common foot-shooting actions in the 207 upgrade as well as the limited ability to roll back the kernel across 208 the ino64 upgrade. Complicated use cases may not work properly, though 209 enough simpler ones work to allow recovery in most situations. 210 21120170620: 212 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 213 if you require the GPL compiler. 214 21520170618: 216 The internal ABI used for communication between the NFS kernel modules 217 was changed by r320085, so __FreeBSD_version was bumped to 218 ensure all the NFS related modules are updated together. 219 22020170617: 221 The ABI of struct event was changed by extending the data 222 member to 64bit and adding ext fields. For upgrade, same 223 precautions as for the entry 20170523 "ino64" must be 224 followed. 225 22620170531: 227 The GNU roff toolchain has been removed from base. To render manpages 228 which are not supported by mandoc(1), man(1) can fallback on GNU roff 229 from ports (and recommends to install it). 230 To render roff(7) documents, consider using GNU roff from ports or the 231 heirloom doctools roff toolchain from ports via pkg install groff or 232 via pkg install heirloom-doctools. 233 23420170524: 235 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 236 smaller runtime footprint builds. This is useful for embedded systems 237 which only require one chipset support. 238 239 If you load it as a module, make sure this is in /boot/loader.conf: 240 241 if_ath_load="YES" 242 243 This will load the HAL, all chip/RF backends and if_ath_pci. 244 If you have if_ath_pci in /boot/loader.conf, ensure it is after 245 if_ath or it will not load any HAL chipset support. 246 247 If you want to selectively load things (eg on ye cheape ARM/MIPS 248 platforms where RAM is at a premium) you should: 249 250 * load ath_hal 251 * load the chip modules in question 252 * load ath_rate, ath_dfs 253 * load ath_main 254 * load if_ath_pci and/or if_ath_ahb depending upon your particular 255 bus bind type - this is where probe/attach is done. 256 257 For further comments/feedback, poke adrian@ . 258 25920170523: 260 The "ino64" 64-bit inode project has been committed, which extends 261 a number of types to 64 bits. Upgrading in place requires care and 262 adherence to the documented upgrade procedure. 263 264 If using a custom kernel configuration ensure that the 265 COMPAT_FREEBSD11 option is included (as during the upgrade the 266 system will be running the ino64 kernel with the existing world). 267 268 For the safest in-place upgrade begin by removing previous build 269 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 270 full procedure documented below under the heading "To rebuild 271 everything and install it on the current system." Specifically, 272 a reboot is required after installing the new kernel before 273 installing world. 274 27520170424: 276 The NATM framework including the en(4), fatm(4), hatm(4), and 277 patm(4) devices has been removed. Consumers should plan a 278 migration before the end-of-life date for FreeBSD 11. 279 28020170420: 281 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 282 diff has not been implemented, if those are needed a newer version of 283 GNU diff is available via the diffutils package under the gdiff name. 284 28520170413: 286 As of r316810 for ipfilter, keep frags is no longer assumed when 287 keep state is specified in a rule. r316810 aligns ipfilter with 288 documentation in man pages separating keep frags from keep state. 289 This allows keep state to be specified without forcing keep frags 290 and allows keep frags to be specified independently of keep state. 291 To maintain previous behaviour, also specify keep frags with 292 keep state (as documented in ipf.conf.5). 293 29420170407: 295 arm64 builds now use the base system LLD 4.0.0 linker by default, 296 instead of requiring that the aarch64-binutils port or package be 297 installed. To continue using aarch64-binutils, set 298 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 299 30020170405: 301 The UDP optimization in entry 20160818 that added the sysctl 302 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 303 packets will no longer be treated as L3 broadcast packets. 304 30520170331: 306 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 307 use any explicitly assigned loopback address available in the jail 308 instead of using the first assigned address of the jail. 309 31020170329: 311 The ctl.ko module no longer implements the iSCSI target frontend: 312 cfiscsi.ko does instead. 313 314 If building cfiscsi.ko as a kernel module, the module can be loaded 315 via one of the following methods: 316 - `cfiscsi_load="YES"` in loader.conf(5). 317 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 318 - ctladm(8)/ctld(8), when compiled with iSCSI support 319 (`WITH_ISCSI=yes` in src.conf(5)) 320 321 Please see cfiscsi(4) for more details. 322 32320170316: 324 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 325 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 326 same source (previously, the dependency of mmcsd.ko on mmc.ko was 327 missing, but mmcsd.ko now will refuse to load if it is incompatible 328 with mmc.ko). 329 33020170315: 331 The syntax of ipfw(8) named states was changed to avoid ambiguity. 332 If you have used named states in the firewall rules, you need to modify 333 them after installworld and before rebooting. Now named states must 334 be prefixed with colon. 335 33620170311: 337 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 338 removed as the userland we provide cannot use them. The KMS version 339 (sys/dev/drm2) supports the same hardware. 340 34120170302: 342 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 343 Please see the 20141231 entry below for information about prerequisites 344 and upgrading, if you are not already using clang 3.5.0 or higher. 345 34620170221: 347 The code that provides support for ZFS .zfs/ directory functionality 348 has been reimplemented. It's not possible now to create a snapshot 349 by mkdir under .zfs/snapshot/. That should be the only user visible 350 change. 351 35220170216: 353 EISA bus support has been removed. The WITH_EISA option is no longer 354 valid. 355 35620170215: 357 MCA bus support has been removed. 358 35920170127: 360 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 361 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 362 36320170112: 364 The EM_MULTIQUEUE kernel configuration option is deprecated now that 365 the em(4) driver conforms to iflib specifications. 366 36720170109: 368 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 369 IFLIB. If you have a custom kernel configuration that excludes em(4) 370 but you use igb(4), you need to re-add em(4) to your custom configuration. 371 37220161217: 373 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 374 Please see the 20141231 entry below for information about prerequisites 375 and upgrading, if you are not already using clang 3.5.0 or higher. 376 37720161124: 378 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 379 Please see the 20141231 entry below for information about prerequisites 380 and upgrading, if you are not already using clang 3.5.0 or higher. 381 38220161119: 383 The layout of the pmap structure has changed for powerpc to put the pmap 384 statistics at the front for all CPU variations. libkvm(3) and all tools 385 that link against it need to be recompiled. 386 38720161030: 388 isl(4) and cyapa(4) drivers now require a new driver, 389 chromebook_platform(4), to work properly on Chromebook-class hardware. 390 On other types of hardware the drivers may need to be configured using 391 device hints. Please see the corresponding manual pages for details. 392 39320161017: 394 The urtwn(4) driver was merged into rtwn(4) and now consists of 395 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 396 parts. 397 Also, firmware for RTL8188CE was renamed due to possible name 398 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 399 40020161015: 401 GNU rcs has been removed from base. It is available as packages: 402 - rcs: Latest GPLv3 GNU rcs version. 403 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 404 removed from base. 405 40620161008: 407 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 408 modules now requires that the kernel configuration contain the 409 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 410 41120161003: 412 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 413 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 414 41520160924: 416 Relocatable object files with the extension of .So have been renamed 417 to use an extension of .pico instead. The purpose of this change is 418 to avoid a name clash with shared libraries on case-insensitive file 419 systems. On those file systems, foo.So is the same file as foo.so. 420 42120160918: 422 GNU rcs has been turned off by default. It can (temporarily) be built 423 again by adding WITH_RCS knob in src.conf. 424 Otherwise, GNU rcs is available from packages: 425 - rcs: Latest GPLv3 GNU rcs version. 426 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 427 42820160918: 429 The backup_uses_rcs functionality has been removed from rc.subr. 430 43120160908: 432 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 433 two separate components, QUEUE_MACRO_DEBUG_TRACE and 434 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 435 QUEUE_MACRO_DEBUG behavior. 436 43720160824: 438 r304787 changed some ioctl interfaces between the iSCSI userspace 439 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 440 rebuilt to work with new kernels. __FreeBSD_version has been bumped 441 to 1200005. 442 44320160818: 444 The UDP receive code has been updated to only treat incoming UDP 445 packets that were addressed to an L2 broadcast address as L3 446 broadcast packets. It is not expected that this will affect any 447 standards-conforming UDP application. The new behaviour can be 448 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 449 0. 450 45120160818: 452 Remove the openbsd_poll system call. 453 __FreeBSD_version has been bumped because of this. 454 45520160622: 456 The libc stub for the pipe(2) system call has been replaced with 457 a wrapper that calls the pipe2(2) system call and the pipe(2) 458 system call is now only implemented by the kernels that include 459 "options COMPAT_FREEBSD10" in their config file (this is the 460 default). Users should ensure that this option is enabled in 461 their kernel or upgrade userspace to r302092 before upgrading their 462 kernel. 463 46420160527: 465 CAM will now strip leading spaces from SCSI disks' serial numbers. 466 This will affect users who create UFS filesystems on SCSI disks using 467 those disk's diskid device nodes. For example, if /etc/fstab 468 previously contained a line like 469 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 470 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 471 transforms like gmirror may also be affected. ZFS users should 472 generally be fine. 473 47420160523: 475 The bitstring(3) API has been updated with new functionality and 476 improved performance. But it is binary-incompatible with the old API. 477 Objects built with the new headers may not be linked against objects 478 built with the old headers. 479 48020160520: 481 The brk and sbrk functions have been removed from libc on arm64. 482 Binutils from ports has been updated to not link to these 483 functions and should be updated to the latest version before 484 installing a new libc. 485 48620160517: 487 The armv6 port now defaults to hard float ABI. Limited support 488 for running both hardfloat and soft float on the same system 489 is available using the libraries installed with -DWITH_LIBSOFT. 490 This has only been tested as an upgrade path for installworld 491 and packages may fail or need manual intervention to run. New 492 packages will be needed. 493 494 To update an existing self-hosted armv6hf system, you must add 495 TARGET_ARCH=armv6 on the make command line for both the build 496 and the install steps. 497 49820160510: 499 Kernel modules compiled outside of a kernel build now default to 500 installing to /boot/modules instead of /boot/kernel. Many kernel 501 modules built this way (such as those in ports) already overrode 502 KMODDIR explicitly to install into /boot/modules. However, 503 manually building and installing a module from /sys/modules will 504 now install to /boot/modules instead of /boot/kernel. 505 50620160414: 507 The CAM I/O scheduler has been committed to the kernel. There should be 508 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 509 list of known rogues that claim support for this but actually corrupt 510 data is believed to be complete, be on the lookout for data 511 corruption. The known rogue list is believed to be complete: 512 513 o Crucial MX100, M550 drives with MU01 firmware. 514 o Micron M510 and M550 drives with MU01 firmware. 515 o Micron M500 prior to MU07 firmware 516 o Samsung 830, 840, and 850 all firmwares 517 o FCCT M500 all firmwares 518 519 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 520 with working NCQ TRIM. For Micron branded drives, see your sales rep for 521 updated firmware. Black listed drives will work correctly because these 522 drives work correctly so long as no NCQ TRIMs are sent to them. Given 523 this list is the same as found in Linux, it's believed there are no 524 other rogues in the market place. All other models from the above 525 vendors work. 526 527 To be safe, if you are at all concerned, you can quirk each of your 528 drives to prevent NCQ from being sent by setting: 529 kern.cam.ada.X.quirks="0x2" 530 in loader.conf. If the drive requires the 4k sector quirk, set the 531 quirks entry to 0x3. 532 53320160330: 534 The FAST_DEPEND build option has been removed and its functionality is 535 now the one true way. The old mkdep(1) style of 'make depend' has 536 been removed. See 20160311 for further details. 537 53820160317: 539 Resource range types have grown from unsigned long to uintmax_t. All 540 drivers, and anything using libdevinfo, need to be recompiled. 541 54220160311: 543 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 544 builds. It no longer runs mkdep(1) during 'make depend', and the 545 'make depend' stage can safely be skipped now as it is auto ran 546 when building 'make all' and will generate all SRCS and DPSRCS before 547 building anything else. Dependencies are gathered at compile time with 548 -MF flags kept in separate .depend files per object file. Users should 549 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 550 stale .depend files. 551 55220160306: 553 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 554 kernel modules. Therefore, if you load any kernel modules at boot time, 555 please install the boot loaders after you install the kernel, but before 556 rebooting, e.g.: 557 558 make buildworld 559 make kernel KERNCONF=YOUR_KERNEL_HERE 560 make -C sys/boot install 561 <reboot in single user> 562 563 Then follow the usual steps, described in the General Notes section, 564 below. 565 56620160305: 567 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 568 see the 20141231 entry below for information about prerequisites and 569 upgrading, if you are not already using clang 3.5.0 or higher. 570 57120160301: 572 The AIO subsystem is now a standard part of the kernel. The 573 VFS_AIO kernel option and aio.ko kernel module have been removed. 574 Due to stability concerns, asynchronous I/O requests are only 575 permitted on sockets and raw disks by default. To enable 576 asynchronous I/O requests on all file types, set the 577 vfs.aio.enable_unsafe sysctl to a non-zero value. 578 57920160226: 580 The ELF object manipulation tool objcopy is now provided by the 581 ELF Tool Chain project rather than by GNU binutils. It should be a 582 drop-in replacement, with the addition of arm64 support. The 583 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 584 to obtain the GNU version if necessary. 585 58620160129: 587 Building ZFS pools on top of zvols is prohibited by default. That 588 feature has never worked safely; it's always been prone to deadlocks. 589 Using a zvol as the backing store for a VM guest's virtual disk will 590 still work, even if the guest is using ZFS. Legacy behavior can be 591 restored by setting vfs.zfs.vol.recursive=1. 592 59320160119: 594 The NONE and HPN patches has been removed from OpenSSH. They are 595 still available in the security/openssh-portable port. 596 59720160113: 598 With the addition of ypldap(8), a new _ypldap user is now required 599 during installworld. "mergemaster -p" can be used to add the user 600 prior to installworld, as documented in the handbook. 601 60220151216: 603 The tftp loader (pxeboot) now uses the option root-path directive. As a 604 consequence it no longer looks for a pxeboot.4th file on the tftp 605 server. Instead it uses the regular /boot infrastructure as with the 606 other loaders. 607 60820151211: 609 The code to start recording plug and play data into the modules has 610 been committed. While the old tools will properly build a new kernel, 611 a number of warnings about "unknown metadata record 4" will be produced 612 for an older kldxref. To avoid such warnings, make sure to rebuild 613 the kernel toolchain (or world). Make sure that you have r292078 or 614 later when trying to build 292077 or later before rebuilding. 615 61620151207: 617 Debug data files are now built by default with 'make buildworld' and 618 installed with 'make installworld'. This facilitates debugging but 619 requires more disk space both during the build and for the installed 620 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 621 in src.conf(5). 622 62320151130: 624 r291527 changed the internal interface between the nfsd.ko and 625 nfscommon.ko modules. As such, they must both be upgraded to-gether. 626 __FreeBSD_version has been bumped because of this. 627 62820151108: 629 Add support for unicode collation strings leads to a change of 630 order of files listed by ls(1) for example. To get back to the old 631 behaviour, set LC_COLLATE environment variable to "C". 632 633 Databases administrators will need to reindex their databases given 634 collation results will be different. 635 636 Due to a bug in install(1) it is recommended to remove the ancient 637 locales before running make installworld. 638 639 rm -rf /usr/share/locale/* 640 64120151030: 642 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 643 libcrypto.so.7 or libssl.so.7 must be recompiled. 644 64520151020: 646 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 647 Kernel modules isp_2400_multi and isp_2500_multi were removed and 648 should be replaced with isp_2400 and isp_2500 modules respectively. 649 65020151017: 651 The build previously allowed using 'make -n' to not recurse into 652 sub-directories while showing what commands would be executed, and 653 'make -n -n' to recursively show commands. Now 'make -n' will recurse 654 and 'make -N' will not. 655 65620151012: 657 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 658 and etcupdate will now use this file. A custom sendmail.cf is now 659 updated via this mechanism rather than via installworld. If you had 660 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 661 want to remove the exclusion or change it to "always install". 662 /etc/mail/sendmail.cf is now managed the same way regardless of 663 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 664 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 665 66620151011: 667 Compatibility shims for legacy ATA device names have been removed. 668 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 669 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 670 environment variables, /dev/ad* and /dev/ar* symbolic links. 671 67220151006: 673 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 674 Please see the 20141231 entry below for information about prerequisites 675 and upgrading, if you are not already using clang 3.5.0 or higher. 676 67720150924: 678 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 679 and renamed from .symbols to .debug. This reduces the size requirements 680 on the boot partition or file system and provides consistency with 681 userland debug files. 682 683 When using the supported kernel installation method the 684 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 685 as is done with /boot/kernel. 686 687 Developers wishing to maintain the historical behavior of installing 688 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 689 69020150827: 691 The wireless drivers had undergone changes that remove the 'parent 692 interface' from the ifconfig -l output. The rc.d network scripts 693 used to check presence of a parent interface in the list, so old 694 scripts would fail to start wireless networking. Thus, etcupdate(3) 695 or mergemaster(8) run is required after kernel update, to update your 696 rc.d scripts in /etc. 697 69820150827: 699 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 700 These configurations are now automatically interpreted as 701 'scrub fragment reassemble'. 702 70320150817: 704 Kernel-loadable modules for the random(4) device are back. To use 705 them, the kernel must have 706 707 device random 708 options RANDOM_LOADABLE 709 710 kldload(8) can then be used to load random_fortuna.ko 711 or random_yarrow.ko. Please note that due to the indirect 712 function calls that the loadable modules need to provide, 713 the build-in variants will be slightly more efficient. 714 715 The random(4) kernel option RANDOM_DUMMY has been retired due to 716 unpopularity. It was not all that useful anyway. 717 71820150813: 719 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 720 Control over building the ELF Tool Chain tools is now provided by 721 the WITHOUT_TOOLCHAIN knob. 722 72320150810: 724 The polarity of Pulse Per Second (PPS) capture events with the 725 uart(4) driver has been corrected. Prior to this change the PPS 726 "assert" event corresponded to the trailing edge of a positive PPS 727 pulse and the "clear" event was the leading edge of the next pulse. 728 729 As the width of a PPS pulse in a typical GPS receiver is on the 730 order of 1 millisecond, most users will not notice any significant 731 difference with this change. 732 733 Anyone who has compensated for the historical polarity reversal by 734 configuring a negative offset equal to the pulse width will need to 735 remove that workaround. 736 73720150809: 738 The default group assigned to /dev/dri entries has been changed 739 from 'wheel' to 'video' with the id of '44'. If you want to have 740 access to the dri devices please add yourself to the video group 741 with: 742 743 # pw groupmod video -m $USER 744 74520150806: 746 The menu.rc and loader.rc files will now be replaced during 747 upgrades. Please migrate local changes to menu.rc.local and 748 loader.rc.local instead. 749 75020150805: 751 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 752 strings and strip have been removed. The src.conf(5) knob 753 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 754 75520150728: 756 As ZFS requires more kernel stack pages than is the default on some 757 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 758 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 759 760 Please consider using 'options KSTACK_PAGES=X' where X is greater 761 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 762 76320150706: 764 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 765 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 766 default, i.e., they will not contain "::". For example, instead 767 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 768 to have a more specific match, such as different map entries for 769 IPv6:0:0 vs IPv6:0. This change requires that configuration 770 data (including maps, files, classes, custom ruleset, etc.) must 771 use the same format, so make certain such configuration data is 772 upgrading. As a very simple check search for patterns like 773 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 774 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 775 the cf option UseCompressedIPv6Addresses. 776 77720150630: 778 The default kernel entropy-processing algorithm is now 779 Fortuna, replacing Yarrow. 780 781 Assuming you have 'device random' in your kernel config 782 file, the configurations allow a kernel option to override 783 this default. You may choose *ONE* of: 784 785 options RANDOM_YARROW # Legacy /dev/random algorithm. 786 options RANDOM_DUMMY # Blocking-only driver. 787 788 If you have neither, you get Fortuna. For most people, 789 read no further, Fortuna will give a /dev/random that works 790 like it always used to, and the difference will be irrelevant. 791 792 If you remove 'device random', you get *NO* kernel-processed 793 entropy at all. This may be acceptable to folks building 794 embedded systems, but has complications. Carry on reading, 795 and it is assumed you know what you need. 796 797 *PLEASE* read random(4) and random(9) if you are in the 798 habit of tweaking kernel configs, and/or if you are a member 799 of the embedded community, wanting specific and not-usual 800 behaviour from your security subsystems. 801 802 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 803 random', you will NOT have a functioning /dev/random, and 804 many cryptographic features will not work, including SSH. 805 You may also find strange behaviour from the random(3) set 806 of library functions, in particular sranddev(3), srandomdev(3) 807 and arc4random(3). The reason for this is that the KERN_ARND 808 sysctl only returns entropy if it thinks it has some to 809 share, and with RANDOM_DUMMY or no 'device random' this 810 will never happen. 811 81220150623: 813 An additional fix for the issue described in the 20150614 sendmail 814 entry below has been been committed in revision 284717. 815 81620150616: 817 FreeBSD's old make (fmake) has been removed from the system. It is 818 available as the devel/fmake port or via pkg install fmake. 819 82020150615: 821 The fix for the issue described in the 20150614 sendmail entry 822 below has been been committed in revision 284436. The work 823 around described in that entry is no longer needed unless the 824 default setting is overridden by a confDH_PARAMETERS configuration 825 setting of '5' or pointing to a 512 bit DH parameter file. 826 82720150614: 828 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 829 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 830 and devel/kyua to version 0.20+ and adjust any calling code to work 831 with Kyuafile and kyua. 832 83320150614: 834 The import of openssl to address the FreeBSD-SA-15:10.openssl 835 security advisory includes a change which rejects handshakes 836 with DH parameters below 768 bits. sendmail releases prior 837 to 8.15.2 (not yet released), defaulted to a 512 bit 838 DH parameter setting for client connections. To work around 839 this interoperability, sendmail can be configured to use a 840 2048 bit DH parameter by: 841 842 1. Edit /etc/mail/`hostname`.mc 843 2. If a setting for confDH_PARAMETERS does not exist or 844 exists and is set to a string beginning with '5', 845 replace it with '2'. 846 3. If a setting for confDH_PARAMETERS exists and is set to 847 a file path, create a new file with: 848 openssl dhparam -out /path/to/file 2048 849 4. Rebuild the .cf file: 850 cd /etc/mail/; make; make install 851 5. Restart sendmail: 852 cd /etc/mail/; make restart 853 854 A sendmail patch is coming, at which time this file will be 855 updated. 856 85720150604: 858 Generation of legacy formatted entries have been disabled by default 859 in pwd_mkdb(8), as all base system consumers of the legacy formatted 860 entries were converted to use the new format by default when the new, 861 machine independent format have been added and supported since FreeBSD 862 5.x. 863 864 Please see the pwd_mkdb(8) manual page for further details. 865 86620150525: 867 Clang and llvm have been upgraded to 3.6.1 release. Please see the 868 20141231 entry below for information about prerequisites and upgrading, 869 if you are not already using 3.5.0 or higher. 870 87120150521: 872 TI platform code switched to using vendor DTS files and this update 873 may break existing systems running on Beaglebone, Beaglebone Black, 874 and Pandaboard: 875 876 - dtb files should be regenerated/reinstalled. Filenames are the 877 same but content is different now 878 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 879 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 880 addressing scheme is now pin 25 on /dev/gpioc3. 881 - Pandaboard: /etc/ttys should be updated, serial console device is 882 now /dev/ttyu2, not /dev/ttyu0 883 88420150501: 885 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 886 If you need the GNU extension from groff soelim(1), install groff 887 from package: pkg install groff, or via ports: textproc/groff. 888 88920150423: 890 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 891 defined in symlink(7); previously symlinks were silently ignored. 892 89320150415: 894 The const qualifier has been removed from iconv(3) to comply with 895 POSIX. The ports tree is aware of this from r384038 onwards. 896 89720150416: 898 Libraries specified by LIBADD in Makefiles must have a corresponding 899 DPADD_<lib> variable to ensure correct dependencies. This is now 900 enforced in src.libnames.mk. 901 90220150324: 903 From legacy ata(4) driver was removed support for SATA controllers 904 supported by more functional drivers ahci(4), siis(4) and mvs(4). 905 Kernel modules ataahci and ataadaptec were removed completely, 906 replaced by ahci and mvs modules respectively. 907 90820150315: 909 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 910 the 20141231 entry below for information about prerequisites and 911 upgrading, if you are not already using 3.5.0 or higher. 912 91320150307: 914 The 32-bit PowerPC kernel has been changed to a position-independent 915 executable. This can only be booted with a version of loader(8) 916 newer than January 31, 2015, so make sure to update both world and 917 kernel before rebooting. 918 91920150217: 920 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 921 but before r278950, the RNG was not seeded properly. Immediately 922 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 923 ssh keys or openssl keys) that were generated w/ a kernel from that 924 range. This does not affect programs that directly used /dev/random 925 or /dev/urandom. All userland uses of arc4random(3) are affected. 926 92720150210: 928 The autofs(4) ABI was changed in order to restore binary compatibility 929 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 930 with the new kernel. 931 93220150131: 933 The powerpc64 kernel has been changed to a position-independent 934 executable. This can only be booted with a new version of loader(8), 935 so make sure to update both world and kernel before rebooting. 936 93720150118: 938 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 939 only release, no new features have been added. Please see the 20141231 940 entry below for information about prerequisites and upgrading, if you 941 are not already using 3.5.0. 942 94320150107: 944 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 945 taken from the ELF Tool Chain project rather than GNU binutils. They 946 should be drop-in replacements, with the addition of arm64 support. 947 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 948 binutils tools, if necessary. See 20150805 for updated information. 949 95020150105: 951 The default Unbound configuration now enables remote control 952 using a local socket. Users who have already enabled the 953 local_unbound service should regenerate their configuration 954 by running "service local_unbound setup" as root. 955 95620150102: 957 The GNU texinfo and GNU info pages have been removed. 958 To be able to view GNU info pages please install texinfo from ports. 959 96020141231: 961 Clang, llvm and lldb have been upgraded to 3.5.0 release. 962 963 As of this release, a prerequisite for building clang, llvm and lldb is 964 a C++11 capable compiler and C++11 standard library. This means that to 965 be able to successfully build the cross-tools stage of buildworld, with 966 clang as the bootstrap compiler, your system compiler or cross compiler 967 should either be clang 3.3 or later, or gcc 4.8 or later, and your 968 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 969 later. 970 971 On any standard FreeBSD 10.x or 11.x installation, where clang and 972 libc++ are on by default (that is, on x86 or arm), this should work out 973 of the box. 974 975 On 9.x installations where clang is enabled by default, e.g. on x86 and 976 powerpc, libc++ will not be enabled by default, so libc++ should be 977 built (with clang) and installed first. If both clang and libc++ are 978 missing, build clang first, then use it to build libc++. 979 980 On 8.x and earlier installations, upgrade to 9.x first, and then follow 981 the instructions for 9.x above. 982 983 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 984 default, and do not build clang. 985 986 Many embedded systems are resource constrained, and will not be able to 987 build clang in a reasonable time, or in some cases at all. In those 988 cases, cross building bootable systems on amd64 is a workaround. 989 990 This new version of clang introduces a number of new warnings, of which 991 the following are most likely to appear: 992 993 -Wabsolute-value 994 995 This warns in two cases, for both C and C++: 996 * When the code is trying to take the absolute value of an unsigned 997 quantity, which is effectively a no-op, and almost never what was 998 intended. The code should be fixed, if at all possible. If you are 999 sure that the unsigned quantity can be safely cast to signed, without 1000 loss of information or undefined behavior, you can add an explicit 1001 cast, or disable the warning. 1002 1003 * When the code is trying to take an absolute value, but the called 1004 abs() variant is for the wrong type, which can lead to truncation. 1005 If you want to disable the warning instead of fixing the code, please 1006 make sure that truncation will not occur, or it might lead to unwanted 1007 side-effects. 1008 1009 -Wtautological-undefined-compare and 1010 -Wundefined-bool-conversion 1011 1012 These warn when C++ code is trying to compare 'this' against NULL, while 1013 'this' should never be NULL in well-defined C++ code. However, there is 1014 some legacy (pre C++11) code out there, which actively abuses this 1015 feature, which was less strictly defined in previous C++ versions. 1016 1017 Squid and openjdk do this, for example. The warning can be turned off 1018 for C++98 and earlier, but compiling the code in C++11 mode might result 1019 in unexpected behavior; for example, the parts of the program that are 1020 unreachable could be optimized away. 1021 102220141222: 1023 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 1024 kernel sources have been removed. The .h files remain, since some 1025 utilities include them. This will need to be fixed later. 1026 If "mount -t oldnfs ..." is attempted, it will fail. 1027 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 1028 the utilities will report errors. 1029 103020141121: 1031 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 1032 directories to top level SUBDIR variable when their parent 1033 directory is included in LOCAL_DIRS. Users with build systems with 1034 such hierarchies and without SUBDIR entries in the parent 1035 directory Makefiles should add them or add the directories to 1036 LOCAL_DIRS. 1037 103820141109: 1039 faith(4) and faithd(8) have been removed from the base system. Faith 1040 has been obsolete for a very long time. 1041 104220141104: 1043 vt(4), the new console driver, is enabled by default. It brings 1044 support for Unicode and double-width characters, as well as 1045 support for UEFI and integration with the KMS kernel video 1046 drivers. 1047 1048 You may need to update your console settings in /etc/rc.conf, 1049 most probably the keymap. During boot, /etc/rc.d/syscons will 1050 indicate what you need to do. 1051 1052 vt(4) still has issues and lacks some features compared to 1053 syscons(4). See the wiki for up-to-date information: 1054 https://wiki.freebsd.org/Newcons 1055 1056 If you want to keep using syscons(4), you can do so by adding 1057 the following line to /boot/loader.conf: 1058 kern.vty=sc 1059 106020141102: 1061 pjdfstest has been integrated into kyua as an opt-in test suite. 1062 Please see share/doc/pjdfstest/README for more details on how to 1063 execute it. 1064 106520141009: 1066 gperf has been removed from the base system for architectures 1067 that use clang. Ports that require gperf will obtain it from the 1068 devel/gperf port. 1069 107020140923: 1071 pjdfstest has been moved from tools/regression/pjdfstest to 1072 contrib/pjdfstest . 1073 107420140922: 1075 At svn r271982, The default linux compat kernel ABI has been adjusted 1076 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1077 update. If you wish to continue using the linux-f10 compat ports, 1078 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1079 encouraged to update their linux-compat packages to linux-c6 during 1080 their next update cycle. 1081 108220140729: 1083 The ofwfb driver, used to provide a graphics console on PowerPC when 1084 using vt(4), no longer allows mmap() of all physical memory. This 1085 will prevent Xorg on PowerPC with some ATI graphics cards from 1086 initializing properly unless x11-servers/xorg-server is updated to 1087 1.12.4_8 or newer. 1088 108920140723: 1090 The xdev targets have been converted to using TARGET and 1091 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1092 109320140719: 1094 The default unbound configuration has been modified to address 1095 issues with reverse lookups on networks that use private 1096 address ranges. If you use the local_unbound service, run 1097 "service local_unbound setup" as root to regenerate your 1098 configuration, then "service local_unbound reload" to load the 1099 new configuration. 1100 110120140709: 1102 The GNU texinfo and GNU info pages are not built and installed 1103 anymore, WITH_INFO knob has been added to allow to built and install 1104 them again. 1105 UPDATE: see 20150102 entry on texinfo's removal 1106 110720140708: 1108 The GNU readline library is now an INTERNALLIB - that is, it is 1109 statically linked into consumers (GDB and variants) in the base 1110 system, and the shared library is no longer installed. The 1111 devel/readline port is available for third party software that 1112 requires readline. 1113 111420140702: 1115 The Itanium architecture (ia64) has been removed from the list of 1116 known architectures. This is the first step in the removal of the 1117 architecture. 1118 111920140701: 1120 Commit r268115 has added NFSv4.1 server support, merged from 1121 projects/nfsv4.1-server. Since this includes changes to the 1122 internal interfaces between the NFS related modules, a full 1123 build of the kernel and modules will be necessary. 1124 __FreeBSD_version has been bumped. 1125 112620140629: 1127 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1128 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1129 which differs from the behaviour controlled by this knob.) 1130 113120140619: 1132 Maximal length of the serial number in CTL was increased from 16 to 1133 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1134 and ctld, need to be rebuilt to work with a new kernel. 1135 113620140606: 1137 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1138 1 respectively to match the upstream numbers. They were out of 1139 sync because, when they were originally added to FreeBSD, the 1140 upstream versions were not respected. These libraries are private 1141 and not yet built by default, so renumbering them should be a 1142 non-issue. However, unclean source trees will yield broken test 1143 programs once the operator executes "make delete-old-libs" after a 1144 "make installworld". 1145 1146 Additionally, the atf-sh binary was made private by moving it into 1147 /usr/libexec/. Already-built shell test programs will keep the 1148 path to the old binary so they will break after "make delete-old" 1149 is run. 1150 1151 If you are using WITH_TESTS=yes (not the default), wipe the object 1152 tree and rebuild from scratch to prevent spurious test failures. 1153 This is only needed once: the misnumbered libraries and misplaced 1154 binaries have been added to OptionalObsoleteFiles.inc so they will 1155 be removed during a clean upgrade. 1156 115720140512: 1158 Clang and llvm have been upgraded to 3.4.1 release. 1159 116020140508: 1161 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1162 be removed to avoid issues in the future (and has been added to 1163 ObsoleteFiles.inc). 1164 116520140505: 1166 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1167 past, it affected all builds that used the bsd.*.mk files. The old 1168 behavior was a bug, but people may have relied upon it. To get this 1169 behavior back, you can .include /etc/src.conf from /etc/make.conf 1170 (which is still global and isn't changed). This also changes the 1171 behavior of incremental builds inside the tree of individual 1172 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1173 Although this has survived make universe and some upgrade scenarios, 1174 other upgrade scenarios may have broken. At least one form of 1175 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1176 as well... In cases where MAKESYSPATH isn't working with this 1177 setting, you'll need to set it to the full path to your tree. 1178 1179 One side effect of all this cleaning up is that bsd.compiler.mk 1180 is no longer implicitly included by bsd.own.mk. If you wish to 1181 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1182 as well. 1183 118420140430: 1185 The lindev device has been removed since /dev/full has been made a 1186 standard device. __FreeBSD_version has been bumped. 1187 118820140424: 1189 The knob WITHOUT_VI was added to the base system, which controls 1190 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1191 in order to reorder files share/termcap and didn't build ex(1) as a 1192 build tool, so building/installing with WITH_VI is highly advised for 1193 build hosts for older releases. 1194 1195 This issue has been fixed in stable/9 and stable/10 in r277022 and 1196 r276991, respectively. 1197 119820140418: 1199 The YES_HESIOD knob has been removed. It has been obsolete for 1200 a decade. Please move to using WITH_HESIOD instead or your builds 1201 will silently lack HESIOD. 1202 120320140405: 1204 The uart(4) driver has been changed with respect to its handling 1205 of the low-level console. Previously the uart(4) driver prevented 1206 any process from changing the baudrate or the CLOCAL and HUPCL 1207 control flags. By removing the restrictions, operators can make 1208 changes to the serial console port without having to reboot. 1209 However, when getty(8) is started on the serial device that is 1210 associated with the low-level console, a misconfigured terminal 1211 line in /etc/ttys will now have a real impact. 1212 Before upgrading the kernel, make sure that /etc/ttys has the 1213 serial console device configured as 3wire without baudrate to 1214 preserve the previous behaviour. E.g: 1215 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1216 121720140306: 1218 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1219 to improve performance. To re-enable it, if needed, run rpcbind 1220 with command line option -W. 1221 122220140226: 1223 Switched back to the GPL dtc compiler due to updates in the upstream 1224 dts files not being supported by the BSDL dtc compiler. You will need 1225 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1226 may result while building dtb files during a kernel build if you fail 1227 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1228 122920140216: 1230 Clang and llvm have been upgraded to 3.4 release. 1231 123220140216: 1233 The nve(4) driver has been removed. Please use the nfe(4) driver 1234 for NVIDIA nForce MCP Ethernet adapters instead. 1235 123620140212: 1237 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1238 This could cause certain C++ applications using shared libraries built 1239 against the previous version of libc++ to crash. The incompatibility 1240 has now been fixed, but any C++ applications or shared libraries built 1241 between r261283 and r261801 should be recompiled. 1242 124320140204: 1244 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1245 capability mode support. Please note that enabling the feature in 1246 kernel is still highly recommended. 1247 124820140131: 1249 OpenSSH is now built with sandbox support, and will use sandbox as 1250 the default privilege separation method. This requires Capsicum 1251 capability mode support in kernel. 1252 125320140128: 1254 The libelf and libdwarf libraries have been updated to newer 1255 versions from upstream. Shared library version numbers for 1256 these two libraries were bumped. Any ports or binaries 1257 requiring these two libraries should be recompiled. 1258 __FreeBSD_version is bumped to 1100006. 1259 126020140110: 1261 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1262 instead of providing an explicit one, this would prevent such 1263 Makefile from providing its own Kyuafile in the future during 1264 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1265 intervention is needed to clean an objdir if you use NO_CLEAN: 1266 # find /usr/obj -name Kyuafile | xargs rm -f 1267 126820131213: 1269 The behavior of gss_pseudo_random() for the krb5 mechanism 1270 has changed, for applications requesting a longer random string 1271 than produced by the underlying enctype's pseudo-random() function. 1272 In particular, the random string produced from a session key of 1273 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1274 be different at the 17th octet and later, after this change. 1275 The counter used in the PRF+ construction is now encoded as a 1276 big-endian integer in accordance with RFC 4402. 1277 __FreeBSD_version is bumped to 1100004. 1278 127920131108: 1280 The WITHOUT_ATF build knob has been removed and its functionality 1281 has been subsumed into the more generic WITHOUT_TESTS. If you were 1282 using the former to disable the build of the ATF libraries, you 1283 should change your settings to use the latter. 1284 128520131025: 1286 The default version of mtree is nmtree which is obtained from 1287 NetBSD. The output is generally the same, but may vary 1288 slightly. If you found you need identical output adding 1289 "-F freebsd9" to the command line should do the trick. For the 1290 time being, the old mtree is available as fmtree. 1291 129220131014: 1293 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1294 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1295 1.1.4_8 and verify bsdyml not linked in, before running "make 1296 delete-old-libs": 1297 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1298 or 1299 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1300 130120131010: 1302 The stable/10 branch has been created in subversion from head 1303 revision r256279. 1304 130520131010: 1306 The rc.d/jail script has been updated to support jail(8) 1307 configuration file. The "jail_<jname>_*" rc.conf(5) variables 1308 for per-jail configuration are automatically converted to 1309 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 1310 This is transparently backward compatible. See below about some 1311 incompatibilities and rc.conf(5) manual page for more details. 1312 1313 These variables are now deprecated in favor of jail(8) configuration 1314 file. One can use "rc.d/jail config <jname>" command to generate 1315 a jail(8) configuration file in /var/run/jail.<jname>.conf without 1316 running the jail(8) utility. The default pathname of the 1317 configuration file is /etc/jail.conf and can be specified by 1318 using $jail_conf or $jail_<jname>_conf variables. 1319 1320 Please note that jail_devfs_ruleset accepts an integer at 1321 this moment. Please consider to rewrite the ruleset name 1322 with an integer. 1323 132420130930: 1325 BIND has been removed from the base system. If all you need 1326 is a local resolver, simply enable and start the local_unbound 1327 service instead. Otherwise, several versions of BIND are 1328 available in the ports tree. The dns/bind99 port is one example. 1329 1330 With this change, nslookup(1) and dig(1) are no longer in the base 1331 system. Users should instead use host(1) and drill(1) which are 1332 in the base system. Alternatively, nslookup and dig can 1333 be obtained by installing the dns/bind-tools port. 1334 133520130916: 1336 With the addition of unbound(8), a new unbound user is now 1337 required during installworld. "mergemaster -p" can be used to 1338 add the user prior to installworld, as documented in the handbook. 1339 134020130911: 1341 OpenSSH is now built with DNSSEC support, and will by default 1342 silently trust signed SSHFP records. This can be controlled with 1343 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1344 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1345 134620130906: 1347 The GNU Compiler Collection and C++ standard library (libstdc++) 1348 are no longer built by default on platforms where clang is the system 1349 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1350 options in src.conf. 1351 135220130905: 1353 The PROCDESC kernel option is now part of the GENERIC kernel 1354 configuration and is required for the rwhod(8) to work. 1355 If you are using custom kernel configuration, you should include 1356 'options PROCDESC'. 1357 135820130905: 1359 The API and ABI related to the Capsicum framework was modified 1360 in backward incompatible way. The userland libraries and programs 1361 have to be recompiled to work with the new kernel. This includes the 1362 following libraries and programs, but the whole buildworld is 1363 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1364 kdump, procstat, rwho, rwhod, uniq. 1365 136620130903: 1367 AES-NI intrinsic support has been added to gcc. The AES-NI module 1368 has been updated to use this support. A new gcc is required to build 1369 the aesni module on both i386 and amd64. 1370 137120130821: 1372 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1373 Thus "device padlock_rng" and "device rdrand_rng" should be 1374 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1375 137620130813: 1377 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1378 enables just the iconv* functionality and is now on by default. 1379 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1380 compatibility. Set WITHOUT_ICONV to build the old way. 1381 If you have been using WITH_ICONV before, you will very likely 1382 need to turn on WITH_LIBICONV_COMPAT. 1383 138420130806: 1385 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1386 Illumos origin, including ZFS. If you have INVARIANTS in your 1387 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1388 explicitly. 1389 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1390 locks if WITNESS option was set. Because that generated a lot of 1391 witness(9) reports and all of them were believed to be false 1392 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1393 can be used to achieve the previous behavior. 1394 139520130806: 1396 Timer values in IPv6 data structures now use time_uptime instead 1397 of time_second. Although this is not a user-visible functional 1398 change, userland utilities which directly use them---ndp(8), 1399 rtadvd(8), and rtsold(8) in the base system---need to be updated 1400 to r253970 or later. 1401 140220130802: 1403 find -delete can now delete the pathnames given as arguments, 1404 instead of only files found below them or if the pathname did 1405 not contain any slashes. Formerly, the following error message 1406 would result: 1407 1408 find: -delete: <path>: relative path potentially not safe 1409 1410 Deleting the pathnames given as arguments can be prevented 1411 without error messages using -mindepth 1 or by changing 1412 directory and passing "." as argument to find. This works in the 1413 old as well as the new version of find. 1414 141520130726: 1416 Behavior of devfs rules path matching has been changed. 1417 Pattern is now always matched against fully qualified devfs 1418 path and slash characters must be explicitly matched by 1419 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1420 subdirectories must be reviewed. 1421 142220130716: 1423 The default ARM ABI has changed to the ARM EABI. The old ABI is 1424 incompatible with the ARM EABI and all programs and modules will 1425 need to be rebuilt to work with a new kernel. 1426 1427 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1428 1429 NOTE: Support for the old ABI will be removed in the future and 1430 users are advised to upgrade. 1431 143220130709: 1433 pkg_install has been disconnected from the build if you really need it 1434 you should add WITH_PKGTOOLS in your src.conf(5). 1435 143620130709: 1437 Most of network statistics structures were changed to be able 1438 keep 64-bits counters. Thus all tools, that work with networking 1439 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1440 144120130618: 1442 Fix a bug that allowed a tracing process (e.g. gdb) to write 1443 to a memory-mapped file in the traced process's address space 1444 even if neither the traced process nor the tracing process had 1445 write access to that file. 1446 144720130615: 1448 CVS has been removed from the base system. An exact copy 1449 of the code is available from the devel/cvs port. 1450 145120130613: 1452 Some people report the following error after the switch to bmake: 1453 1454 make: illegal option -- J 1455 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1456 ... 1457 *** [buildworld] Error code 2 1458 1459 this likely due to an old instance of make in 1460 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1461 which src/Makefile will use that blindly, if it exists, so if 1462 you see the above error: 1463 1464 rm -rf `make -V MAKEPATH` 1465 1466 should resolve it. 1467 146820130516: 1469 Use bmake by default. 1470 Whereas before one could choose to build with bmake via 1471 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1472 make. The goal is to remove these knobs for 10-RELEASE. 1473 1474 It is worth noting that bmake (like gmake) treats the command 1475 line as the unit of failure, rather than statements within the 1476 command line. Thus '(cd some/where && dosomething)' is safer 1477 than 'cd some/where; dosomething'. The '()' allows consistent 1478 behavior in parallel build. 1479 148020130429: 1481 Fix a bug that allows NFS clients to issue READDIR on files. 1482 148320130426: 1484 The WITHOUT_IDEA option has been removed because 1485 the IDEA patent expired. 1486 148720130426: 1488 The sysctl which controls TRIM support under ZFS has been renamed 1489 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1490 enabled by default. 1491 149220130425: 1493 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1494 rather than creating it's own in the temporary directory in 1495 order allow access to bootstrapped versions of tools such as 1496 install and mtree. When upgrading from version of FreeBSD where 1497 the install command does not support -l, you will need to 1498 install a new mergemaster command if mergemaster -p is required. 1499 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1500 && make install). 1501 150220130404: 1503 Legacy ATA stack, disabled and replaced by new CAM-based one since 1504 FreeBSD 9.0, completely removed from the sources. Kernel modules 1505 atadisk and atapi*, user-level tools atacontrol and burncd are 1506 removed. Kernel option `options ATA_CAM` is now permanently enabled 1507 and removed. 1508 150920130319: 1510 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1511 and socketpair(2). Software, in particular Kerberos, may 1512 automatically detect and use these during building. The resulting 1513 binaries will not work on older kernels. 1514 151520130308: 1516 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1517 information, see the respective 20130304 entry). 1518 151920130304: 1520 Recent commits to callout(9) changed the size of struct callout, 1521 so the KBI is probably heavily disturbed. Also, some functions 1522 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1523 by macros. Every kernel module using it won't load, so rebuild 1524 is requested. 1525 1526 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1527 but does not initialize by default (because of the new CTL_DISABLE 1528 option) to save memory. To re-enable it, remove the CTL_DISABLE 1529 option from the kernel config file or set kern.cam.ctl.disable=0 1530 in /boot/loader.conf. 1531 153220130301: 1533 The ctl device has been disabled in GENERIC for i386 and amd64. 1534 This was done due to the extra memory being allocated at system 1535 initialisation time by the ctl driver which was only used if 1536 a CAM target device was created. This makes a FreeBSD system 1537 unusable on 128MB or less of RAM. 1538 153920130208: 1540 A new compression method (lz4) has been merged to -HEAD. Please 1541 refer to zpool-features(7) for more information. 1542 1543 Please refer to the "ZFS notes" section of this file for information 1544 on upgrading boot ZFS pools. 1545 154620130129: 1547 A BSD-licensed patch(1) variant has been added and is installed 1548 as bsdpatch, being the GNU version the default patch. 1549 To inverse the logic and use the BSD-licensed one as default, 1550 while having the GNU version installed as gnupatch, rebuild 1551 and install world with the WITH_BSD_PATCH knob set. 1552 155320130121: 1554 Due to the use of the new -l option to install(1) during build 1555 and install, you must take care not to directly set the INSTALL 1556 make variable in your /etc/make.conf, /etc/src.conf, or on the 1557 command line. If you wish to use the -C flag for all installs 1558 you may be able to add INSTALL+=-C to /etc/make.conf or 1559 /etc/src.conf. 1560 156120130118: 1562 The install(1) option -M has changed meaning and now takes an 1563 argument that is a file or path to append logs to. In the 1564 unlikely event that -M was the last option on the command line 1565 and the command line contained at least two files and a target 1566 directory the first file will have logs appended to it. The -M 1567 option served little practical purpose in the last decade so its 1568 use is expected to be extremely rare. 1569 157020121223: 1571 After switching to Clang as the default compiler some users of ZFS 1572 on i386 systems started to experience stack overflow kernel panics. 1573 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1574 157520121222: 1576 GEOM_LABEL now mangles label names read from file system metadata. 1577 Mangling affect labels containing spaces, non-printable characters, 1578 '%' or '"'. Device names in /etc/fstab and other places may need to 1579 be updated. 1580 158120121217: 1582 By default, only the 10 most recent kernel dumps will be saved. To 1583 restore the previous behaviour (no limit on the number of kernel dumps 1584 stored in the dump directory) add the following line to /etc/rc.conf: 1585 1586 savecore_flags="" 1587 158820121201: 1589 With the addition of auditdistd(8), a new auditdistd user is now 1590 required during installworld. "mergemaster -p" can be used to 1591 add the user prior to installworld, as documented in the handbook. 1592 159320121117: 1594 The sin6_scope_id member variable in struct sockaddr_in6 is now 1595 filled by the kernel before passing the structure to the userland via 1596 sysctl or routing socket. This means the KAME-specific embedded scope 1597 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1598 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1599 __FreeBSD_version is bumped to 1000025. 1600 160120121105: 1602 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1603 This means that the world and kernel will be compiled with clang 1604 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1605 and /usr/bin/cpp. To disable this behavior and revert to building 1606 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1607 of current may need to bootstrap WITHOUT_CLANG first if the clang 1608 build fails (its compatibility window doesn't extend to the 9 stable 1609 branch point). 1610 161120121102: 1612 The IPFIREWALL_FORWARD kernel option has been removed. Its 1613 functionality now turned on by default. 1614 161520121023: 1616 The ZERO_COPY_SOCKET kernel option has been removed and 1617 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1618 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1619 mechanism which is not safe and may result in kernel crashes. 1620 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1621 driver supports disposeable external page sized mbuf storage. 1622 Proper replacements for both zero-copy mechanisms are under 1623 consideration and will eventually lead to complete removal 1624 of the two kernel options. 1625 162620121023: 1627 The IPv4 network stack has been converted to network byte 1628 order. The following modules need to be recompiled together 1629 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1630 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1631 163220121022: 1633 Support for non-MPSAFE filesystems was removed from VFS. The 1634 VFS_VERSION was bumped, all filesystem modules shall be 1635 recompiled. 1636 163720121018: 1638 All the non-MPSAFE filesystems have been disconnected from 1639 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1640 portalfs, smbfs, xfs. 1641 164220121016: 1643 The interface cloning API and ABI has changed. The following 1644 modules need to be recompiled together with kernel: 1645 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1646 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1647 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1648 164920121015: 1650 The sdhci driver was split in two parts: sdhci (generic SD Host 1651 Controller logic) and sdhci_pci (actual hardware driver). 1652 No kernel config modifications are required, but if you 1653 load sdhc as a module you must switch to sdhci_pci instead. 1654 165520121014: 1656 Import the FUSE kernel and userland support into base system. 1657 165820121013: 1659 The GNU sort(1) program has been removed since the BSD-licensed 1660 sort(1) has been the default for quite some time and no serious 1661 problems have been reported. The corresponding WITH_GNU_SORT 1662 knob has also gone. 1663 166420121006: 1665 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1666 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1667 with new kernel. 1668 166920121001: 1670 The net80211(4) ABI has been changed to allow for improved driver 1671 PS-POLL and power-save support. All wireless drivers need to be 1672 recompiled to work with the new kernel. 1673 167420120913: 1675 The random(4) support for the VIA hardware random number 1676 generator (`PADLOCK') is no longer enabled unconditionally. 1677 Add the padlock_rng device in the custom kernel config if 1678 needed. The GENERIC kernels on i386 and amd64 do include the 1679 device, so the change only affects the custom kernel 1680 configurations. 1681 168220120908: 1683 The pf(4) packet filter ABI has been changed. pfctl(8) and 1684 snmp_pf module need to be recompiled to work with new kernel. 1685 168620120828: 1687 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1688 to -HEAD. Pools that have empty_bpobj in active state can not be 1689 imported read-write with ZFS implementations that do not support 1690 this feature. For more information read the zpool-features(5) 1691 manual page. 1692 169320120727: 1694 The sparc64 ZFS loader has been changed to no longer try to auto- 1695 detect ZFS providers based on diskN aliases but now requires these 1696 to be explicitly listed in the OFW boot-device environment variable. 1697 169820120712: 1699 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1700 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1701 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1702 170320120712: 1704 The following sysctls and tunables have been renamed for consistency 1705 with other variables: 1706 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1707 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1708 170920120628: 1710 The sort utility has been replaced with BSD sort. For now, GNU sort 1711 is also available as "gnusort" or the default can be set back to 1712 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1713 installed as "bsdsort". 1714 171520120611: 1716 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1717 Starting with this version the old system of ZFS pool versioning 1718 is superseded by "feature flags". This concept enables forward 1719 compatibility against certain future changes in functionality of ZFS 1720 pools. The first read-only compatible "feature flag" for ZFS pools 1721 is named "com.delphix:async_destroy". For more information 1722 read the new zpool-features(5) manual page. 1723 Please refer to the "ZFS notes" section of this file for information 1724 on upgrading boot ZFS pools. 1725 172620120417: 1727 The malloc(3) implementation embedded in libc now uses sources imported 1728 as contrib/jemalloc. The most disruptive API change is to 1729 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1730 delete it prior to installworld, and optionally re-create it using the 1731 new format after rebooting. See malloc.conf(5) for details 1732 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1733 NAMESPACE section). 1734 173520120328: 1736 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1737 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1738 now spelled mips. This is to aid compatibility with third-party 1739 software that expects this naming scheme in uname(3). Little-endian 1740 settings are unchanged. If you are updating a big-endian mips64 machine 1741 from before this change, you may need to set MACHINE_ARCH=mips64 in 1742 your environment before the new build system will recognize your machine. 1743 174420120306: 1745 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1746 platforms. 1747 174820120229: 1749 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1750 nullfs(5) did not pass through all behaviours to the underlying layer, 1751 as a result if we bound to a socket on the lower layer we could connect 1752 only to the lower path; if we bound to the upper layer we could connect 1753 only to the upper path. The new behavior is one can connect to both the 1754 lower and the upper paths regardless what layer path one binds to. 1755 175620120211: 1757 The getifaddrs upgrade path broken with 20111215 has been restored. 1758 If you have upgraded in between 20111215 and 20120209 you need to 1759 recompile libc again with your kernel. You still need to recompile 1760 world to be able to configure CARP but this restriction already 1761 comes from 20111215. 1762 176320120114: 1764 The set_rcvar() function has been removed from /etc/rc.subr. All 1765 base and ports rc.d scripts have been updated, so if you have a 1766 port installed with a script in /usr/local/etc/rc.d you can either 1767 hand-edit the rcvar= line, or reinstall the port. 1768 1769 An easy way to handle the mass-update of /etc/rc.d: 1770 rm /etc/rc.d/* && mergemaster -i 1771 177220120109: 1773 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1774 on the current CPU and prevents other threads from running. 1775 This behavior can be reverted using the kern.stop_scheduler_on_panic 1776 tunable/sysctl. 1777 The new behavior can be incompatible with kern.sync_on_panic. 1778 177920111215: 1780 The carp(4) facility has been changed significantly. Configuration 1781 of the CARP protocol via ifconfig(8) has changed, as well as format 1782 of CARP events submitted to devd(8) has changed. See manual pages 1783 for more information. The arpbalance feature of carp(4) is currently 1784 not supported anymore. 1785 1786 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1787 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1788 need to be recompiled. 1789 179020111122: 1791 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1792 /dev/wmistat0. 1793 179420111108: 1795 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1796 explicitely support non-MPSAFE filesystems. 1797 It is on by default for all supported platform at this present 1798 time. 1799 180020111101: 1801 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1802 i386 and pc98 GENERIC kernel configuration files. 1803 180420110930: 1805 sysinstall has been removed 1806 180720110923: 1808 The stable/9 branch created in subversion. This corresponds to the 1809 RELENG_9 branch in CVS. 1810 1811COMMON ITEMS: 1812 1813 General Notes 1814 ------------- 1815 Avoid using make -j when upgrading. While generally safe, there are 1816 sometimes problems using -j to upgrade. If your upgrade fails with 1817 -j, please try again without -j. From time to time in the past there 1818 have been problems using -j with buildworld and/or installworld. This 1819 is especially true when upgrading between "distant" versions (eg one 1820 that cross a major release boundary or several minor releases, or when 1821 several months have passed on the -current branch). 1822 1823 Sometimes, obscure build problems are the result of environment 1824 poisoning. This can happen because the make utility reads its 1825 environment when searching for values for global variables. To run 1826 your build attempts in an "environmental clean room", prefix all make 1827 commands with 'env -i '. See the env(1) manual page for more details. 1828 1829 When upgrading from one major version to another it is generally best to 1830 upgrade to the latest code in the currently installed branch first, then 1831 do an upgrade to the new branch. This is the best-tested upgrade path, 1832 and has the highest probability of being successful. Please try this 1833 approach if you encounter problems with a major version upgrade. Since 1834 the stable 4.x branch point, one has generally been able to upgade from 1835 anywhere in the most recent stable branch to head / current (or even the 1836 last couple of stable branches). See the top of this file when there's 1837 an exception. 1838 1839 When upgrading a live system, having a root shell around before 1840 installing anything can help undo problems. Not having a root shell 1841 around can lead to problems if pam has changed too much from your 1842 starting point to allow continued authentication after the upgrade. 1843 1844 This file should be read as a log of events. When a later event changes 1845 information of a prior event, the prior event should not be deleted. 1846 Instead, a pointer to the entry with the new information should be 1847 placed in the old entry. Readers of this file should also sanity check 1848 older entries before relying on them blindly. Authors of new entries 1849 should write them with this in mind. 1850 1851 ZFS notes 1852 --------- 1853 When upgrading the boot ZFS pool to a new version, always follow 1854 these two steps: 1855 1856 1.) recompile and reinstall the ZFS boot loader and boot block 1857 (this is part of "make buildworld" and "make installworld") 1858 1859 2.) update the ZFS boot block on your boot drive 1860 1861 The following example updates the ZFS boot block on the first 1862 partition (freebsd-boot) of a GPT partitioned drive ada0: 1863 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1864 1865 Non-boot pools do not need these updates. 1866 1867 To build a kernel 1868 ----------------- 1869 If you are updating from a prior version of FreeBSD (even one just 1870 a few days old), you should follow this procedure. It is the most 1871 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1872 1873 make kernel-toolchain 1874 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1875 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1876 1877 To test a kernel once 1878 --------------------- 1879 If you just want to boot a kernel once (because you are not sure 1880 if it works, or if you want to boot a known bad kernel to provide 1881 debugging information) run 1882 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1883 nextboot -k testkernel 1884 1885 To rebuild everything and install it on the current system. 1886 ----------------------------------------------------------- 1887 # Note: sometimes if you are running current you gotta do more than 1888 # is listed here if you are upgrading from a really old current. 1889 1890 <make sure you have good level 0 dumps> 1891 make buildworld 1892 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1893 make installkernel KERNCONF=YOUR_KERNEL_HERE 1894 [1] 1895 <reboot in single user> [3] 1896 mergemaster -Fp [5] 1897 make installworld 1898 mergemaster -Fi [4] 1899 make delete-old [6] 1900 <reboot> 1901 1902 To cross-install current onto a separate partition 1903 -------------------------------------------------- 1904 # In this approach we use a separate partition to hold 1905 # current's root, 'usr', and 'var' directories. A partition 1906 # holding "/", "/usr" and "/var" should be about 2GB in 1907 # size. 1908 1909 <make sure you have good level 0 dumps> 1910 <boot into -stable> 1911 make buildworld 1912 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1913 <maybe newfs current's root partition> 1914 <mount current's root partition on directory ${CURRENT_ROOT}> 1915 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1916 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1917 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1918 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1919 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1920 <reboot into current> 1921 <do a "native" rebuild/install as described in the previous section> 1922 <maybe install compatibility libraries from ports/misc/compat*> 1923 <reboot> 1924 1925 1926 To upgrade in-place from stable to current 1927 ---------------------------------------------- 1928 <make sure you have good level 0 dumps> 1929 make buildworld [9] 1930 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1931 [1] 1932 <reboot in single user> [3] 1933 mergemaster -Fp [5] 1934 make installworld 1935 mergemaster -Fi [4] 1936 make delete-old [6] 1937 <reboot> 1938 1939 Make sure that you've read the UPDATING file to understand the 1940 tweaks to various things you need. At this point in the life 1941 cycle of current, things change often and you are on your own 1942 to cope. The defaults can also change, so please read ALL of 1943 the UPDATING entries. 1944 1945 Also, if you are tracking -current, you must be subscribed to 1946 freebsd-current@freebsd.org. Make sure that before you update 1947 your sources that you have read and understood all the recent 1948 messages there. If in doubt, please track -stable which has 1949 much fewer pitfalls. 1950 1951 [1] If you have third party modules, such as vmware, you 1952 should disable them at this point so they don't crash your 1953 system on reboot. 1954 1955 [3] From the bootblocks, boot -s, and then do 1956 fsck -p 1957 mount -u / 1958 mount -a 1959 cd src 1960 adjkerntz -i # if CMOS is wall time 1961 Also, when doing a major release upgrade, it is required that 1962 you boot into single user mode to do the installworld. 1963 1964 [4] Note: This step is non-optional. Failure to do this step 1965 can result in a significant reduction in the functionality of the 1966 system. Attempting to do it by hand is not recommended and those 1967 that pursue this avenue should read this file carefully, as well 1968 as the archives of freebsd-current and freebsd-hackers mailing lists 1969 for potential gotchas. The -U option is also useful to consider. 1970 See mergemaster(8) for more information. 1971 1972 [5] Usually this step is a noop. However, from time to time 1973 you may need to do this if you get unknown user in the following 1974 step. It never hurts to do it all the time. You may need to 1975 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1976 install) after the buildworld before this step if you last updated 1977 from current before 20130425 or from -stable before 20130430. 1978 1979 [6] This only deletes old files and directories. Old libraries 1980 can be deleted by "make delete-old-libs", but you have to make 1981 sure that no program is using those libraries anymore. 1982 1983 [8] In order to have a kernel that can run the 4.x binaries needed to 1984 do an installworld, you must include the COMPAT_FREEBSD4 option in 1985 your kernel. Failure to do so may leave you with a system that is 1986 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1987 required to run the 5.x binaries on more recent kernels. And so on 1988 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1989 1990 Make sure that you merge any new devices from GENERIC since the 1991 last time you updated your kernel config file. 1992 1993 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1994 "?=" instead of the "=" assignment operator, so that buildworld can 1995 override the CPUTYPE if it needs to. 1996 1997 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1998 not on the command line, or in /etc/make.conf. buildworld will 1999 warn if it is improperly defined. 2000FORMAT: 2001 2002This file contains a list, in reverse chronological order, of major 2003breakages in tracking -current. It is not guaranteed to be a complete 2004list of such breakages, and only contains entries since September 23, 2011. 2005If you need to see UPDATING entries from before that date, you will need 2006to fetch an UPDATING file from an older FreeBSD release. 2007 2008Copyright information: 2009 2010Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2011 2012Redistribution, publication, translation and use, with or without 2013modification, in full or in part, in any form or format of this 2014document are permitted without further permission from the author. 2015 2016THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2017IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2018WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2019DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2020INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2021(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2022SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2023HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2024STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2025IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2026POSSIBILITY OF SUCH DAMAGE. 2027 2028Contact Warner Losh if you have any questions about your use of 2029this document. 2030 2031$FreeBSD$ 2032