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 54201711xx: 55 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to 56 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed 57 to WITH/OUT_LOADER_GELI. 58 5920171106: 60 The naive and non-compliant support of posix_fallocate(2) in ZFS 61 has been removed as of r325320. The system call now returns EINVAL 62 when used on a ZFS file. Although the new behavior complies with the 63 standard, some consumers are not prepared to cope with it. 64 One known victim is lld prior to r325420. 65 6620171102: 67 Building in a FreeBSD src checkout will automatically create object 68 directories now rather than store files in the current directory if 69 'make obj' was not ran. Calling 'make obj' is no longer necessary. 70 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in 71 /etc/src-env.conf (not /etc/src.conf), or passing the option in the 72 environment. 73 7420171101: 75 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native 76 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified 77 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old 78 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf, 79 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building. 80 The UNIFIED_OBJDIR option is a transitional feature that will be 81 removed for 12.0 release; please migrate to the new format for any 82 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather 83 than hardcoding paths. 84 8520171028: 86 The native-xtools target no longer installs the files by default to the 87 OBJDIR. Use the native-xtools-install target with a DESTDIR to install 88 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin. 89 9020171021: 91 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 92 options are changing from controlling the build if defined / undefined 93 to controlling the build with explicit 'yes' or 'no' values. They will 94 shift to WITH/WITHOUT options to match other options in the system. 95 9620171010: 97 libstand has turned into a private library for sys/boot use only. 98 It is no longer supported as a public interface outside of sys/boot. 99 10020171005: 101 The arm port has split armv6 into armv6 and armv7. armv7 is now 102 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 103 and are running a kernel from before r324363, you will need to add 104 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 105 10620171003: 107 When building multiple kernels using KERNCONF, non-existent KERNCONF 108 files will produce an error and buildkernel will fail. Previously 109 missing KERNCONF files silently failed giving no indication as to 110 why, only to subsequently discover during installkernel that the 111 desired kernel was never built in the first place. 112 11320170912: 114 The default serial number format for CTL LUNs has changed. This will 115 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 116 or iSCSI clients care about their LUNs' serial numbers. Users who 117 require serial number stability should hardcode serial numbers in 118 /etc/ctl.conf . 119 12020170912: 121 For 32-bit arm compiled for hard-float support, soft-floating point 122 binaries now always get their shared libraries from 123 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 124 /usr/libsoft also existed). Only users with a hard-float ld.so, but 125 soft-float everything else should be affected. 126 12720170826: 128 The geli password typed at boot is now hidden. To restore the previous 129 behavior, see geli(8) for configuration options. 130 13120170825: 132 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 133 sysctl values. Minor nit, but requires a rebuild of both world/kernel 134 to complete. 135 13620170814: 137 "make check" behavior (made in ^/head@r295380) has been changed to 138 execute from a limited sandbox, as opposed to executing from 139 ${TESTSDIR}. 140 141 Behavioral changes: 142 - The "beforecheck" and "aftercheck" targets are now specified. 143 - ${CHECKDIR} (added in commit noted above) has been removed. 144 - Legacy behavior can be enabled by setting 145 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 146 147 If the limited sandbox mode is enabled, "make check" will execute 148 "make distribution", then install, execute the tests, and clean up the 149 sandbox if successful. 150 151 The "make distribution" and "make install" targets are typically run as 152 root to set appropriate permissions and ownership at installation time. 153 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 154 environment if executing "make check" with limited sandbox mode using 155 an unprivileged user. 156 15720170808: 158 Since the switch to GPT disk labels, fsck for UFS/FFS has been 159 unable to automatically find alternate superblocks. As of r322297, 160 the information needed to find alternate superblocks has been 161 moved to the end of the area reserved for the boot block. 162 Filesystems created with a newfs of this vintage or later 163 will create the recovery information. If you have a filesystem 164 created prior to this change and wish to have a recovery block 165 created for your filesystem, you can do so by running fsck in 166 forground mode (i.e., do not use the -p or -y options). As it 167 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 168 to which you should answer yes. 169 17020170728: 171 As of r321665, an NFSv4 server configuration that services 172 Kerberos mounts or clients that do not support the uid/gid in 173 owner/owner_group string capability, must explicitly enable 174 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 175 machine's /etc/rc.conf file. 176 17720170722: 178 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 179 Please see the 20141231 entry below for information about prerequisites 180 and upgrading, if you are not already using clang 3.5.0 or higher. 181 18220170701: 183 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 184 r-commands (rlogin, rsh, etc.) to be built with the base system. 185 18620170625: 187 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 188 a very major ABI incompatible change, so users of FreeBSD/powerpc must 189 be careful when performing source upgrades. It is best to run 190 'make installworld' from an alternate root system, either a live 191 CD/memory stick, or a temporary root partition. Additionally, all ports 192 must be recompiled. powerpc64 is largely unaffected, except in the case 193 of 32-bit compatibility. All 32-bit binaries will be affected. 194 19520170623: 196 Forward compatibility for the "ino64" project have been committed. This 197 will allow most new binaries to run on older kernels in a limited 198 fashion. This prevents many of the common foot-shooting actions in the 199 upgrade as well as the limited ability to roll back the kernel across 200 the ino64 upgrade. Complicated use cases may not work properly, though 201 enough simpler ones work to allow recovery in most situations. 202 20320170620: 204 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 205 if you require the GPL compiler. 206 20720170618: 208 The internal ABI used for communication between the NFS kernel modules 209 was changed by r320085, so __FreeBSD_version was bumped to 210 ensure all the NFS related modules are updated together. 211 21220170617: 213 The ABI of struct event was changed by extending the data 214 member to 64bit and adding ext fields. For upgrade, same 215 precautions as for the entry 20170523 "ino64" must be 216 followed. 217 21820170531: 219 The GNU roff toolchain has been removed from base. To render manpages 220 which are not supported by mandoc(1), man(1) can fallback on GNU roff 221 from ports (and recommends to install it). 222 To render roff(7) documents, consider using GNU roff from ports or the 223 heirloom doctools roff toolchain from ports via pkg install groff or 224 via pkg install heirloom-doctools. 225 22620170524: 227 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 228 smaller runtime footprint builds. This is useful for embedded systems 229 which only require one chipset support. 230 231 If you load it as a module, make sure this is in /boot/loader.conf: 232 233 if_ath_load="YES" 234 235 This will load the HAL, all chip/RF backends and if_ath_pci. 236 If you have if_ath_pci in /boot/loader.conf, ensure it is after 237 if_ath or it will not load any HAL chipset support. 238 239 If you want to selectively load things (eg on ye cheape ARM/MIPS 240 platforms where RAM is at a premium) you should: 241 242 * load ath_hal 243 * load the chip modules in question 244 * load ath_rate, ath_dfs 245 * load ath_main 246 * load if_ath_pci and/or if_ath_ahb depending upon your particular 247 bus bind type - this is where probe/attach is done. 248 249 For further comments/feedback, poke adrian@ . 250 25120170523: 252 The "ino64" 64-bit inode project has been committed, which extends 253 a number of types to 64 bits. Upgrading in place requires care and 254 adherence to the documented upgrade procedure. 255 256 If using a custom kernel configuration ensure that the 257 COMPAT_FREEBSD11 option is included (as during the upgrade the 258 system will be running the ino64 kernel with the existing world). 259 260 For the safest in-place upgrade begin by removing previous build 261 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 262 full procedure documented below under the heading "To rebuild 263 everything and install it on the current system." Specifically, 264 a reboot is required after installing the new kernel before 265 installing world. 266 26720170424: 268 The NATM framework including the en(4), fatm(4), hatm(4), and 269 patm(4) devices has been removed. Consumers should plan a 270 migration before the end-of-life date for FreeBSD 11. 271 27220170420: 273 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 274 diff has not been implemented, if those are needed a newer version of 275 GNU diff is available via the diffutils package under the gdiff name. 276 27720170413: 278 As of r316810 for ipfilter, keep frags is no longer assumed when 279 keep state is specified in a rule. r316810 aligns ipfilter with 280 documentation in man pages separating keep frags from keep state. 281 This allows keep state to be specified without forcing keep frags 282 and allows keep frags to be specified independently of keep state. 283 To maintain previous behaviour, also specify keep frags with 284 keep state (as documented in ipf.conf.5). 285 28620170407: 287 arm64 builds now use the base system LLD 4.0.0 linker by default, 288 instead of requiring that the aarch64-binutils port or package be 289 installed. To continue using aarch64-binutils, set 290 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 291 29220170405: 293 The UDP optimization in entry 20160818 that added the sysctl 294 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 295 packets will no longer be treated as L3 broadcast packets. 296 29720170331: 298 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 299 use any explicitly assigned loopback address available in the jail 300 instead of using the first assigned address of the jail. 301 30220170329: 303 The ctl.ko module no longer implements the iSCSI target frontend: 304 cfiscsi.ko does instead. 305 306 If building cfiscsi.ko as a kernel module, the module can be loaded 307 via one of the following methods: 308 - `cfiscsi_load="YES"` in loader.conf(5). 309 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 310 - ctladm(8)/ctld(8), when compiled with iSCSI support 311 (`WITH_ISCSI=yes` in src.conf(5)) 312 313 Please see cfiscsi(4) for more details. 314 31520170316: 316 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 317 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 318 same source (previously, the dependency of mmcsd.ko on mmc.ko was 319 missing, but mmcsd.ko now will refuse to load if it is incompatible 320 with mmc.ko). 321 32220170315: 323 The syntax of ipfw(8) named states was changed to avoid ambiguity. 324 If you have used named states in the firewall rules, you need to modify 325 them after installworld and before rebooting. Now named states must 326 be prefixed with colon. 327 32820170311: 329 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 330 removed as the userland we provide cannot use them. The KMS version 331 (sys/dev/drm2) supports the same hardware. 332 33320170302: 334 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 335 Please see the 20141231 entry below for information about prerequisites 336 and upgrading, if you are not already using clang 3.5.0 or higher. 337 33820170221: 339 The code that provides support for ZFS .zfs/ directory functionality 340 has been reimplemented. It's not possible now to create a snapshot 341 by mkdir under .zfs/snapshot/. That should be the only user visible 342 change. 343 34420170216: 345 EISA bus support has been removed. The WITH_EISA option is no longer 346 valid. 347 34820170215: 349 MCA bus support has been removed. 350 35120170127: 352 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 353 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 354 35520170112: 356 The EM_MULTIQUEUE kernel configuration option is deprecated now that 357 the em(4) driver conforms to iflib specifications. 358 35920170109: 360 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 361 IFLIB. If you have a custom kernel configuration that excludes em(4) 362 but you use igb(4), you need to re-add em(4) to your custom configuration. 363 36420161217: 365 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 366 Please see the 20141231 entry below for information about prerequisites 367 and upgrading, if you are not already using clang 3.5.0 or higher. 368 36920161124: 370 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 371 Please see the 20141231 entry below for information about prerequisites 372 and upgrading, if you are not already using clang 3.5.0 or higher. 373 37420161119: 375 The layout of the pmap structure has changed for powerpc to put the pmap 376 statistics at the front for all CPU variations. libkvm(3) and all tools 377 that link against it need to be recompiled. 378 37920161030: 380 isl(4) and cyapa(4) drivers now require a new driver, 381 chromebook_platform(4), to work properly on Chromebook-class hardware. 382 On other types of hardware the drivers may need to be configured using 383 device hints. Please see the corresponding manual pages for details. 384 38520161017: 386 The urtwn(4) driver was merged into rtwn(4) and now consists of 387 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 388 parts. 389 Also, firmware for RTL8188CE was renamed due to possible name 390 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 391 39220161015: 393 GNU rcs has been removed from base. It is available as packages: 394 - rcs: Latest GPLv3 GNU rcs version. 395 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 396 removed from base. 397 39820161008: 399 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 400 modules now requires that the kernel configuration contain the 401 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 402 40320161003: 404 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 405 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 406 40720160924: 408 Relocatable object files with the extension of .So have been renamed 409 to use an extension of .pico instead. The purpose of this change is 410 to avoid a name clash with shared libraries on case-insensitive file 411 systems. On those file systems, foo.So is the same file as foo.so. 412 41320160918: 414 GNU rcs has been turned off by default. It can (temporarily) be built 415 again by adding WITH_RCS knob in src.conf. 416 Otherwise, GNU rcs is available from packages: 417 - rcs: Latest GPLv3 GNU rcs version. 418 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 419 42020160918: 421 The backup_uses_rcs functionality has been removed from rc.subr. 422 42320160908: 424 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 425 two separate components, QUEUE_MACRO_DEBUG_TRACE and 426 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 427 QUEUE_MACRO_DEBUG behavior. 428 42920160824: 430 r304787 changed some ioctl interfaces between the iSCSI userspace 431 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 432 rebuilt to work with new kernels. __FreeBSD_version has been bumped 433 to 1200005. 434 43520160818: 436 The UDP receive code has been updated to only treat incoming UDP 437 packets that were addressed to an L2 broadcast address as L3 438 broadcast packets. It is not expected that this will affect any 439 standards-conforming UDP application. The new behaviour can be 440 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 441 0. 442 44320160818: 444 Remove the openbsd_poll system call. 445 __FreeBSD_version has been bumped because of this. 446 44720160622: 448 The libc stub for the pipe(2) system call has been replaced with 449 a wrapper that calls the pipe2(2) system call and the pipe(2) 450 system call is now only implemented by the kernels that include 451 "options COMPAT_FREEBSD10" in their config file (this is the 452 default). Users should ensure that this option is enabled in 453 their kernel or upgrade userspace to r302092 before upgrading their 454 kernel. 455 45620160527: 457 CAM will now strip leading spaces from SCSI disks' serial numbers. 458 This will affect users who create UFS filesystems on SCSI disks using 459 those disk's diskid device nodes. For example, if /etc/fstab 460 previously contained a line like 461 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 462 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 463 transforms like gmirror may also be affected. ZFS users should 464 generally be fine. 465 46620160523: 467 The bitstring(3) API has been updated with new functionality and 468 improved performance. But it is binary-incompatible with the old API. 469 Objects built with the new headers may not be linked against objects 470 built with the old headers. 471 47220160520: 473 The brk and sbrk functions have been removed from libc on arm64. 474 Binutils from ports has been updated to not link to these 475 functions and should be updated to the latest version before 476 installing a new libc. 477 47820160517: 479 The armv6 port now defaults to hard float ABI. Limited support 480 for running both hardfloat and soft float on the same system 481 is available using the libraries installed with -DWITH_LIBSOFT. 482 This has only been tested as an upgrade path for installworld 483 and packages may fail or need manual intervention to run. New 484 packages will be needed. 485 486 To update an existing self-hosted armv6hf system, you must add 487 TARGET_ARCH=armv6 on the make command line for both the build 488 and the install steps. 489 49020160510: 491 Kernel modules compiled outside of a kernel build now default to 492 installing to /boot/modules instead of /boot/kernel. Many kernel 493 modules built this way (such as those in ports) already overrode 494 KMODDIR explicitly to install into /boot/modules. However, 495 manually building and installing a module from /sys/modules will 496 now install to /boot/modules instead of /boot/kernel. 497 49820160414: 499 The CAM I/O scheduler has been committed to the kernel. There should be 500 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 501 list of known rogues that claim support for this but actually corrupt 502 data is believed to be complete, be on the lookout for data 503 corruption. The known rogue list is believed to be complete: 504 505 o Crucial MX100, M550 drives with MU01 firmware. 506 o Micron M510 and M550 drives with MU01 firmware. 507 o Micron M500 prior to MU07 firmware 508 o Samsung 830, 840, and 850 all firmwares 509 o FCCT M500 all firmwares 510 511 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 512 with working NCQ TRIM. For Micron branded drives, see your sales rep for 513 updated firmware. Black listed drives will work correctly because these 514 drives work correctly so long as no NCQ TRIMs are sent to them. Given 515 this list is the same as found in Linux, it's believed there are no 516 other rogues in the market place. All other models from the above 517 vendors work. 518 519 To be safe, if you are at all concerned, you can quirk each of your 520 drives to prevent NCQ from being sent by setting: 521 kern.cam.ada.X.quirks="0x2" 522 in loader.conf. If the drive requires the 4k sector quirk, set the 523 quirks entry to 0x3. 524 52520160330: 526 The FAST_DEPEND build option has been removed and its functionality is 527 now the one true way. The old mkdep(1) style of 'make depend' has 528 been removed. See 20160311 for further details. 529 53020160317: 531 Resource range types have grown from unsigned long to uintmax_t. All 532 drivers, and anything using libdevinfo, need to be recompiled. 533 53420160311: 535 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 536 builds. It no longer runs mkdep(1) during 'make depend', and the 537 'make depend' stage can safely be skipped now as it is auto ran 538 when building 'make all' and will generate all SRCS and DPSRCS before 539 building anything else. Dependencies are gathered at compile time with 540 -MF flags kept in separate .depend files per object file. Users should 541 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 542 stale .depend files. 543 54420160306: 545 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 546 kernel modules. Therefore, if you load any kernel modules at boot time, 547 please install the boot loaders after you install the kernel, but before 548 rebooting, e.g.: 549 550 make buildworld 551 make kernel KERNCONF=YOUR_KERNEL_HERE 552 make -C sys/boot install 553 <reboot in single user> 554 555 Then follow the usual steps, described in the General Notes section, 556 below. 557 55820160305: 559 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 560 see the 20141231 entry below for information about prerequisites and 561 upgrading, if you are not already using clang 3.5.0 or higher. 562 56320160301: 564 The AIO subsystem is now a standard part of the kernel. The 565 VFS_AIO kernel option and aio.ko kernel module have been removed. 566 Due to stability concerns, asynchronous I/O requests are only 567 permitted on sockets and raw disks by default. To enable 568 asynchronous I/O requests on all file types, set the 569 vfs.aio.enable_unsafe sysctl to a non-zero value. 570 57120160226: 572 The ELF object manipulation tool objcopy is now provided by the 573 ELF Tool Chain project rather than by GNU binutils. It should be a 574 drop-in replacement, with the addition of arm64 support. The 575 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 576 to obtain the GNU version if necessary. 577 57820160129: 579 Building ZFS pools on top of zvols is prohibited by default. That 580 feature has never worked safely; it's always been prone to deadlocks. 581 Using a zvol as the backing store for a VM guest's virtual disk will 582 still work, even if the guest is using ZFS. Legacy behavior can be 583 restored by setting vfs.zfs.vol.recursive=1. 584 58520160119: 586 The NONE and HPN patches has been removed from OpenSSH. They are 587 still available in the security/openssh-portable port. 588 58920160113: 590 With the addition of ypldap(8), a new _ypldap user is now required 591 during installworld. "mergemaster -p" can be used to add the user 592 prior to installworld, as documented in the handbook. 593 59420151216: 595 The tftp loader (pxeboot) now uses the option root-path directive. As a 596 consequence it no longer looks for a pxeboot.4th file on the tftp 597 server. Instead it uses the regular /boot infrastructure as with the 598 other loaders. 599 60020151211: 601 The code to start recording plug and play data into the modules has 602 been committed. While the old tools will properly build a new kernel, 603 a number of warnings about "unknown metadata record 4" will be produced 604 for an older kldxref. To avoid such warnings, make sure to rebuild 605 the kernel toolchain (or world). Make sure that you have r292078 or 606 later when trying to build 292077 or later before rebuilding. 607 60820151207: 609 Debug data files are now built by default with 'make buildworld' and 610 installed with 'make installworld'. This facilitates debugging but 611 requires more disk space both during the build and for the installed 612 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 613 in src.conf(5). 614 61520151130: 616 r291527 changed the internal interface between the nfsd.ko and 617 nfscommon.ko modules. As such, they must both be upgraded to-gether. 618 __FreeBSD_version has been bumped because of this. 619 62020151108: 621 Add support for unicode collation strings leads to a change of 622 order of files listed by ls(1) for example. To get back to the old 623 behaviour, set LC_COLLATE environment variable to "C". 624 625 Databases administrators will need to reindex their databases given 626 collation results will be different. 627 628 Due to a bug in install(1) it is recommended to remove the ancient 629 locales before running make installworld. 630 631 rm -rf /usr/share/locale/* 632 63320151030: 634 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 635 libcrypto.so.7 or libssl.so.7 must be recompiled. 636 63720151020: 638 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 639 Kernel modules isp_2400_multi and isp_2500_multi were removed and 640 should be replaced with isp_2400 and isp_2500 modules respectively. 641 64220151017: 643 The build previously allowed using 'make -n' to not recurse into 644 sub-directories while showing what commands would be executed, and 645 'make -n -n' to recursively show commands. Now 'make -n' will recurse 646 and 'make -N' will not. 647 64820151012: 649 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 650 and etcupdate will now use this file. A custom sendmail.cf is now 651 updated via this mechanism rather than via installworld. If you had 652 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 653 want to remove the exclusion or change it to "always install". 654 /etc/mail/sendmail.cf is now managed the same way regardless of 655 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 656 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 657 65820151011: 659 Compatibility shims for legacy ATA device names have been removed. 660 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 661 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 662 environment variables, /dev/ad* and /dev/ar* symbolic links. 663 66420151006: 665 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 666 Please see the 20141231 entry below for information about prerequisites 667 and upgrading, if you are not already using clang 3.5.0 or higher. 668 66920150924: 670 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 671 and renamed from .symbols to .debug. This reduces the size requirements 672 on the boot partition or file system and provides consistency with 673 userland debug files. 674 675 When using the supported kernel installation method the 676 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 677 as is done with /boot/kernel. 678 679 Developers wishing to maintain the historical behavior of installing 680 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 681 68220150827: 683 The wireless drivers had undergone changes that remove the 'parent 684 interface' from the ifconfig -l output. The rc.d network scripts 685 used to check presence of a parent interface in the list, so old 686 scripts would fail to start wireless networking. Thus, etcupdate(3) 687 or mergemaster(8) run is required after kernel update, to update your 688 rc.d scripts in /etc. 689 69020150827: 691 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 692 These configurations are now automatically interpreted as 693 'scrub fragment reassemble'. 694 69520150817: 696 Kernel-loadable modules for the random(4) device are back. To use 697 them, the kernel must have 698 699 device random 700 options RANDOM_LOADABLE 701 702 kldload(8) can then be used to load random_fortuna.ko 703 or random_yarrow.ko. Please note that due to the indirect 704 function calls that the loadable modules need to provide, 705 the build-in variants will be slightly more efficient. 706 707 The random(4) kernel option RANDOM_DUMMY has been retired due to 708 unpopularity. It was not all that useful anyway. 709 71020150813: 711 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 712 Control over building the ELF Tool Chain tools is now provided by 713 the WITHOUT_TOOLCHAIN knob. 714 71520150810: 716 The polarity of Pulse Per Second (PPS) capture events with the 717 uart(4) driver has been corrected. Prior to this change the PPS 718 "assert" event corresponded to the trailing edge of a positive PPS 719 pulse and the "clear" event was the leading edge of the next pulse. 720 721 As the width of a PPS pulse in a typical GPS receiver is on the 722 order of 1 millisecond, most users will not notice any significant 723 difference with this change. 724 725 Anyone who has compensated for the historical polarity reversal by 726 configuring a negative offset equal to the pulse width will need to 727 remove that workaround. 728 72920150809: 730 The default group assigned to /dev/dri entries has been changed 731 from 'wheel' to 'video' with the id of '44'. If you want to have 732 access to the dri devices please add yourself to the video group 733 with: 734 735 # pw groupmod video -m $USER 736 73720150806: 738 The menu.rc and loader.rc files will now be replaced during 739 upgrades. Please migrate local changes to menu.rc.local and 740 loader.rc.local instead. 741 74220150805: 743 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 744 strings and strip have been removed. The src.conf(5) knob 745 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 746 74720150728: 748 As ZFS requires more kernel stack pages than is the default on some 749 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 750 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 751 752 Please consider using 'options KSTACK_PAGES=X' where X is greater 753 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 754 75520150706: 756 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 757 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 758 default, i.e., they will not contain "::". For example, instead 759 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 760 to have a more specific match, such as different map entries for 761 IPv6:0:0 vs IPv6:0. This change requires that configuration 762 data (including maps, files, classes, custom ruleset, etc.) must 763 use the same format, so make certain such configuration data is 764 upgrading. As a very simple check search for patterns like 765 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 766 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 767 the cf option UseCompressedIPv6Addresses. 768 76920150630: 770 The default kernel entropy-processing algorithm is now 771 Fortuna, replacing Yarrow. 772 773 Assuming you have 'device random' in your kernel config 774 file, the configurations allow a kernel option to override 775 this default. You may choose *ONE* of: 776 777 options RANDOM_YARROW # Legacy /dev/random algorithm. 778 options RANDOM_DUMMY # Blocking-only driver. 779 780 If you have neither, you get Fortuna. For most people, 781 read no further, Fortuna will give a /dev/random that works 782 like it always used to, and the difference will be irrelevant. 783 784 If you remove 'device random', you get *NO* kernel-processed 785 entropy at all. This may be acceptable to folks building 786 embedded systems, but has complications. Carry on reading, 787 and it is assumed you know what you need. 788 789 *PLEASE* read random(4) and random(9) if you are in the 790 habit of tweaking kernel configs, and/or if you are a member 791 of the embedded community, wanting specific and not-usual 792 behaviour from your security subsystems. 793 794 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 795 random', you will NOT have a functioning /dev/random, and 796 many cryptographic features will not work, including SSH. 797 You may also find strange behaviour from the random(3) set 798 of library functions, in particular sranddev(3), srandomdev(3) 799 and arc4random(3). The reason for this is that the KERN_ARND 800 sysctl only returns entropy if it thinks it has some to 801 share, and with RANDOM_DUMMY or no 'device random' this 802 will never happen. 803 80420150623: 805 An additional fix for the issue described in the 20150614 sendmail 806 entry below has been been committed in revision 284717. 807 80820150616: 809 FreeBSD's old make (fmake) has been removed from the system. It is 810 available as the devel/fmake port or via pkg install fmake. 811 81220150615: 813 The fix for the issue described in the 20150614 sendmail entry 814 below has been been committed in revision 284436. The work 815 around described in that entry is no longer needed unless the 816 default setting is overridden by a confDH_PARAMETERS configuration 817 setting of '5' or pointing to a 512 bit DH parameter file. 818 81920150614: 820 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 821 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 822 and devel/kyua to version 0.20+ and adjust any calling code to work 823 with Kyuafile and kyua. 824 82520150614: 826 The import of openssl to address the FreeBSD-SA-15:10.openssl 827 security advisory includes a change which rejects handshakes 828 with DH parameters below 768 bits. sendmail releases prior 829 to 8.15.2 (not yet released), defaulted to a 512 bit 830 DH parameter setting for client connections. To work around 831 this interoperability, sendmail can be configured to use a 832 2048 bit DH parameter by: 833 834 1. Edit /etc/mail/`hostname`.mc 835 2. If a setting for confDH_PARAMETERS does not exist or 836 exists and is set to a string beginning with '5', 837 replace it with '2'. 838 3. If a setting for confDH_PARAMETERS exists and is set to 839 a file path, create a new file with: 840 openssl dhparam -out /path/to/file 2048 841 4. Rebuild the .cf file: 842 cd /etc/mail/; make; make install 843 5. Restart sendmail: 844 cd /etc/mail/; make restart 845 846 A sendmail patch is coming, at which time this file will be 847 updated. 848 84920150604: 850 Generation of legacy formatted entries have been disabled by default 851 in pwd_mkdb(8), as all base system consumers of the legacy formatted 852 entries were converted to use the new format by default when the new, 853 machine independent format have been added and supported since FreeBSD 854 5.x. 855 856 Please see the pwd_mkdb(8) manual page for further details. 857 85820150525: 859 Clang and llvm have been upgraded to 3.6.1 release. Please see the 860 20141231 entry below for information about prerequisites and upgrading, 861 if you are not already using 3.5.0 or higher. 862 86320150521: 864 TI platform code switched to using vendor DTS files and this update 865 may break existing systems running on Beaglebone, Beaglebone Black, 866 and Pandaboard: 867 868 - dtb files should be regenerated/reinstalled. Filenames are the 869 same but content is different now 870 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 871 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 872 addressing scheme is now pin 25 on /dev/gpioc3. 873 - Pandaboard: /etc/ttys should be updated, serial console device is 874 now /dev/ttyu2, not /dev/ttyu0 875 87620150501: 877 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 878 If you need the GNU extension from groff soelim(1), install groff 879 from package: pkg install groff, or via ports: textproc/groff. 880 88120150423: 882 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 883 defined in symlink(7); previously symlinks were silently ignored. 884 88520150415: 886 The const qualifier has been removed from iconv(3) to comply with 887 POSIX. The ports tree is aware of this from r384038 onwards. 888 88920150416: 890 Libraries specified by LIBADD in Makefiles must have a corresponding 891 DPADD_<lib> variable to ensure correct dependencies. This is now 892 enforced in src.libnames.mk. 893 89420150324: 895 From legacy ata(4) driver was removed support for SATA controllers 896 supported by more functional drivers ahci(4), siis(4) and mvs(4). 897 Kernel modules ataahci and ataadaptec were removed completely, 898 replaced by ahci and mvs modules respectively. 899 90020150315: 901 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 902 the 20141231 entry below for information about prerequisites and 903 upgrading, if you are not already using 3.5.0 or higher. 904 90520150307: 906 The 32-bit PowerPC kernel has been changed to a position-independent 907 executable. This can only be booted with a version of loader(8) 908 newer than January 31, 2015, so make sure to update both world and 909 kernel before rebooting. 910 91120150217: 912 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 913 but before r278950, the RNG was not seeded properly. Immediately 914 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 915 ssh keys or openssl keys) that were generated w/ a kernel from that 916 range. This does not affect programs that directly used /dev/random 917 or /dev/urandom. All userland uses of arc4random(3) are affected. 918 91920150210: 920 The autofs(4) ABI was changed in order to restore binary compatibility 921 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 922 with the new kernel. 923 92420150131: 925 The powerpc64 kernel has been changed to a position-independent 926 executable. This can only be booted with a new version of loader(8), 927 so make sure to update both world and kernel before rebooting. 928 92920150118: 930 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 931 only release, no new features have been added. Please see the 20141231 932 entry below for information about prerequisites and upgrading, if you 933 are not already using 3.5.0. 934 93520150107: 936 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 937 taken from the ELF Tool Chain project rather than GNU binutils. They 938 should be drop-in replacements, with the addition of arm64 support. 939 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 940 binutils tools, if necessary. See 20150805 for updated information. 941 94220150105: 943 The default Unbound configuration now enables remote control 944 using a local socket. Users who have already enabled the 945 local_unbound service should regenerate their configuration 946 by running "service local_unbound setup" as root. 947 94820150102: 949 The GNU texinfo and GNU info pages have been removed. 950 To be able to view GNU info pages please install texinfo from ports. 951 95220141231: 953 Clang, llvm and lldb have been upgraded to 3.5.0 release. 954 955 As of this release, a prerequisite for building clang, llvm and lldb is 956 a C++11 capable compiler and C++11 standard library. This means that to 957 be able to successfully build the cross-tools stage of buildworld, with 958 clang as the bootstrap compiler, your system compiler or cross compiler 959 should either be clang 3.3 or later, or gcc 4.8 or later, and your 960 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 961 later. 962 963 On any standard FreeBSD 10.x or 11.x installation, where clang and 964 libc++ are on by default (that is, on x86 or arm), this should work out 965 of the box. 966 967 On 9.x installations where clang is enabled by default, e.g. on x86 and 968 powerpc, libc++ will not be enabled by default, so libc++ should be 969 built (with clang) and installed first. If both clang and libc++ are 970 missing, build clang first, then use it to build libc++. 971 972 On 8.x and earlier installations, upgrade to 9.x first, and then follow 973 the instructions for 9.x above. 974 975 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 976 default, and do not build clang. 977 978 Many embedded systems are resource constrained, and will not be able to 979 build clang in a reasonable time, or in some cases at all. In those 980 cases, cross building bootable systems on amd64 is a workaround. 981 982 This new version of clang introduces a number of new warnings, of which 983 the following are most likely to appear: 984 985 -Wabsolute-value 986 987 This warns in two cases, for both C and C++: 988 * When the code is trying to take the absolute value of an unsigned 989 quantity, which is effectively a no-op, and almost never what was 990 intended. The code should be fixed, if at all possible. If you are 991 sure that the unsigned quantity can be safely cast to signed, without 992 loss of information or undefined behavior, you can add an explicit 993 cast, or disable the warning. 994 995 * When the code is trying to take an absolute value, but the called 996 abs() variant is for the wrong type, which can lead to truncation. 997 If you want to disable the warning instead of fixing the code, please 998 make sure that truncation will not occur, or it might lead to unwanted 999 side-effects. 1000 1001 -Wtautological-undefined-compare and 1002 -Wundefined-bool-conversion 1003 1004 These warn when C++ code is trying to compare 'this' against NULL, while 1005 'this' should never be NULL in well-defined C++ code. However, there is 1006 some legacy (pre C++11) code out there, which actively abuses this 1007 feature, which was less strictly defined in previous C++ versions. 1008 1009 Squid and openjdk do this, for example. The warning can be turned off 1010 for C++98 and earlier, but compiling the code in C++11 mode might result 1011 in unexpected behavior; for example, the parts of the program that are 1012 unreachable could be optimized away. 1013 101420141222: 1015 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 1016 kernel sources have been removed. The .h files remain, since some 1017 utilities include them. This will need to be fixed later. 1018 If "mount -t oldnfs ..." is attempted, it will fail. 1019 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 1020 the utilities will report errors. 1021 102220141121: 1023 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 1024 directories to top level SUBDIR variable when their parent 1025 directory is included in LOCAL_DIRS. Users with build systems with 1026 such hierarchies and without SUBDIR entries in the parent 1027 directory Makefiles should add them or add the directories to 1028 LOCAL_DIRS. 1029 103020141109: 1031 faith(4) and faithd(8) have been removed from the base system. Faith 1032 has been obsolete for a very long time. 1033 103420141104: 1035 vt(4), the new console driver, is enabled by default. It brings 1036 support for Unicode and double-width characters, as well as 1037 support for UEFI and integration with the KMS kernel video 1038 drivers. 1039 1040 You may need to update your console settings in /etc/rc.conf, 1041 most probably the keymap. During boot, /etc/rc.d/syscons will 1042 indicate what you need to do. 1043 1044 vt(4) still has issues and lacks some features compared to 1045 syscons(4). See the wiki for up-to-date information: 1046 https://wiki.freebsd.org/Newcons 1047 1048 If you want to keep using syscons(4), you can do so by adding 1049 the following line to /boot/loader.conf: 1050 kern.vty=sc 1051 105220141102: 1053 pjdfstest has been integrated into kyua as an opt-in test suite. 1054 Please see share/doc/pjdfstest/README for more details on how to 1055 execute it. 1056 105720141009: 1058 gperf has been removed from the base system for architectures 1059 that use clang. Ports that require gperf will obtain it from the 1060 devel/gperf port. 1061 106220140923: 1063 pjdfstest has been moved from tools/regression/pjdfstest to 1064 contrib/pjdfstest . 1065 106620140922: 1067 At svn r271982, The default linux compat kernel ABI has been adjusted 1068 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1069 update. If you wish to continue using the linux-f10 compat ports, 1070 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1071 encouraged to update their linux-compat packages to linux-c6 during 1072 their next update cycle. 1073 107420140729: 1075 The ofwfb driver, used to provide a graphics console on PowerPC when 1076 using vt(4), no longer allows mmap() of all physical memory. This 1077 will prevent Xorg on PowerPC with some ATI graphics cards from 1078 initializing properly unless x11-servers/xorg-server is updated to 1079 1.12.4_8 or newer. 1080 108120140723: 1082 The xdev targets have been converted to using TARGET and 1083 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1084 108520140719: 1086 The default unbound configuration has been modified to address 1087 issues with reverse lookups on networks that use private 1088 address ranges. If you use the local_unbound service, run 1089 "service local_unbound setup" as root to regenerate your 1090 configuration, then "service local_unbound reload" to load the 1091 new configuration. 1092 109320140709: 1094 The GNU texinfo and GNU info pages are not built and installed 1095 anymore, WITH_INFO knob has been added to allow to built and install 1096 them again. 1097 UPDATE: see 20150102 entry on texinfo's removal 1098 109920140708: 1100 The GNU readline library is now an INTERNALLIB - that is, it is 1101 statically linked into consumers (GDB and variants) in the base 1102 system, and the shared library is no longer installed. The 1103 devel/readline port is available for third party software that 1104 requires readline. 1105 110620140702: 1107 The Itanium architecture (ia64) has been removed from the list of 1108 known architectures. This is the first step in the removal of the 1109 architecture. 1110 111120140701: 1112 Commit r268115 has added NFSv4.1 server support, merged from 1113 projects/nfsv4.1-server. Since this includes changes to the 1114 internal interfaces between the NFS related modules, a full 1115 build of the kernel and modules will be necessary. 1116 __FreeBSD_version has been bumped. 1117 111820140629: 1119 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1120 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1121 which differs from the behaviour controlled by this knob.) 1122 112320140619: 1124 Maximal length of the serial number in CTL was increased from 16 to 1125 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1126 and ctld, need to be rebuilt to work with a new kernel. 1127 112820140606: 1129 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1130 1 respectively to match the upstream numbers. They were out of 1131 sync because, when they were originally added to FreeBSD, the 1132 upstream versions were not respected. These libraries are private 1133 and not yet built by default, so renumbering them should be a 1134 non-issue. However, unclean source trees will yield broken test 1135 programs once the operator executes "make delete-old-libs" after a 1136 "make installworld". 1137 1138 Additionally, the atf-sh binary was made private by moving it into 1139 /usr/libexec/. Already-built shell test programs will keep the 1140 path to the old binary so they will break after "make delete-old" 1141 is run. 1142 1143 If you are using WITH_TESTS=yes (not the default), wipe the object 1144 tree and rebuild from scratch to prevent spurious test failures. 1145 This is only needed once: the misnumbered libraries and misplaced 1146 binaries have been added to OptionalObsoleteFiles.inc so they will 1147 be removed during a clean upgrade. 1148 114920140512: 1150 Clang and llvm have been upgraded to 3.4.1 release. 1151 115220140508: 1153 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1154 be removed to avoid issues in the future (and has been added to 1155 ObsoleteFiles.inc). 1156 115720140505: 1158 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1159 past, it affected all builds that used the bsd.*.mk files. The old 1160 behavior was a bug, but people may have relied upon it. To get this 1161 behavior back, you can .include /etc/src.conf from /etc/make.conf 1162 (which is still global and isn't changed). This also changes the 1163 behavior of incremental builds inside the tree of individual 1164 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1165 Although this has survived make universe and some upgrade scenarios, 1166 other upgrade scenarios may have broken. At least one form of 1167 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1168 as well... In cases where MAKESYSPATH isn't working with this 1169 setting, you'll need to set it to the full path to your tree. 1170 1171 One side effect of all this cleaning up is that bsd.compiler.mk 1172 is no longer implicitly included by bsd.own.mk. If you wish to 1173 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1174 as well. 1175 117620140430: 1177 The lindev device has been removed since /dev/full has been made a 1178 standard device. __FreeBSD_version has been bumped. 1179 118020140424: 1181 The knob WITHOUT_VI was added to the base system, which controls 1182 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1183 in order to reorder files share/termcap and didn't build ex(1) as a 1184 build tool, so building/installing with WITH_VI is highly advised for 1185 build hosts for older releases. 1186 1187 This issue has been fixed in stable/9 and stable/10 in r277022 and 1188 r276991, respectively. 1189 119020140418: 1191 The YES_HESIOD knob has been removed. It has been obsolete for 1192 a decade. Please move to using WITH_HESIOD instead or your builds 1193 will silently lack HESIOD. 1194 119520140405: 1196 The uart(4) driver has been changed with respect to its handling 1197 of the low-level console. Previously the uart(4) driver prevented 1198 any process from changing the baudrate or the CLOCAL and HUPCL 1199 control flags. By removing the restrictions, operators can make 1200 changes to the serial console port without having to reboot. 1201 However, when getty(8) is started on the serial device that is 1202 associated with the low-level console, a misconfigured terminal 1203 line in /etc/ttys will now have a real impact. 1204 Before upgrading the kernel, make sure that /etc/ttys has the 1205 serial console device configured as 3wire without baudrate to 1206 preserve the previous behaviour. E.g: 1207 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1208 120920140306: 1210 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1211 to improve performance. To re-enable it, if needed, run rpcbind 1212 with command line option -W. 1213 121420140226: 1215 Switched back to the GPL dtc compiler due to updates in the upstream 1216 dts files not being supported by the BSDL dtc compiler. You will need 1217 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1218 may result while building dtb files during a kernel build if you fail 1219 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1220 122120140216: 1222 Clang and llvm have been upgraded to 3.4 release. 1223 122420140216: 1225 The nve(4) driver has been removed. Please use the nfe(4) driver 1226 for NVIDIA nForce MCP Ethernet adapters instead. 1227 122820140212: 1229 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1230 This could cause certain C++ applications using shared libraries built 1231 against the previous version of libc++ to crash. The incompatibility 1232 has now been fixed, but any C++ applications or shared libraries built 1233 between r261283 and r261801 should be recompiled. 1234 123520140204: 1236 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1237 capability mode support. Please note that enabling the feature in 1238 kernel is still highly recommended. 1239 124020140131: 1241 OpenSSH is now built with sandbox support, and will use sandbox as 1242 the default privilege separation method. This requires Capsicum 1243 capability mode support in kernel. 1244 124520140128: 1246 The libelf and libdwarf libraries have been updated to newer 1247 versions from upstream. Shared library version numbers for 1248 these two libraries were bumped. Any ports or binaries 1249 requiring these two libraries should be recompiled. 1250 __FreeBSD_version is bumped to 1100006. 1251 125220140110: 1253 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1254 instead of providing an explicit one, this would prevent such 1255 Makefile from providing its own Kyuafile in the future during 1256 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1257 intervention is needed to clean an objdir if you use NO_CLEAN: 1258 # find /usr/obj -name Kyuafile | xargs rm -f 1259 126020131213: 1261 The behavior of gss_pseudo_random() for the krb5 mechanism 1262 has changed, for applications requesting a longer random string 1263 than produced by the underlying enctype's pseudo-random() function. 1264 In particular, the random string produced from a session key of 1265 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1266 be different at the 17th octet and later, after this change. 1267 The counter used in the PRF+ construction is now encoded as a 1268 big-endian integer in accordance with RFC 4402. 1269 __FreeBSD_version is bumped to 1100004. 1270 127120131108: 1272 The WITHOUT_ATF build knob has been removed and its functionality 1273 has been subsumed into the more generic WITHOUT_TESTS. If you were 1274 using the former to disable the build of the ATF libraries, you 1275 should change your settings to use the latter. 1276 127720131025: 1278 The default version of mtree is nmtree which is obtained from 1279 NetBSD. The output is generally the same, but may vary 1280 slightly. If you found you need identical output adding 1281 "-F freebsd9" to the command line should do the trick. For the 1282 time being, the old mtree is available as fmtree. 1283 128420131014: 1285 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1286 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1287 1.1.4_8 and verify bsdyml not linked in, before running "make 1288 delete-old-libs": 1289 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1290 or 1291 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1292 129320131010: 1294 The stable/10 branch has been created in subversion from head 1295 revision r256279. 1296 129720131010: 1298 The rc.d/jail script has been updated to support jail(8) 1299 configuration file. The "jail_<jname>_*" rc.conf(5) variables 1300 for per-jail configuration are automatically converted to 1301 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 1302 This is transparently backward compatible. See below about some 1303 incompatibilities and rc.conf(5) manual page for more details. 1304 1305 These variables are now deprecated in favor of jail(8) configuration 1306 file. One can use "rc.d/jail config <jname>" command to generate 1307 a jail(8) configuration file in /var/run/jail.<jname>.conf without 1308 running the jail(8) utility. The default pathname of the 1309 configuration file is /etc/jail.conf and can be specified by 1310 using $jail_conf or $jail_<jname>_conf variables. 1311 1312 Please note that jail_devfs_ruleset accepts an integer at 1313 this moment. Please consider to rewrite the ruleset name 1314 with an integer. 1315 131620130930: 1317 BIND has been removed from the base system. If all you need 1318 is a local resolver, simply enable and start the local_unbound 1319 service instead. Otherwise, several versions of BIND are 1320 available in the ports tree. The dns/bind99 port is one example. 1321 1322 With this change, nslookup(1) and dig(1) are no longer in the base 1323 system. Users should instead use host(1) and drill(1) which are 1324 in the base system. Alternatively, nslookup and dig can 1325 be obtained by installing the dns/bind-tools port. 1326 132720130916: 1328 With the addition of unbound(8), a new unbound user is now 1329 required during installworld. "mergemaster -p" can be used to 1330 add the user prior to installworld, as documented in the handbook. 1331 133220130911: 1333 OpenSSH is now built with DNSSEC support, and will by default 1334 silently trust signed SSHFP records. This can be controlled with 1335 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1336 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1337 133820130906: 1339 The GNU Compiler Collection and C++ standard library (libstdc++) 1340 are no longer built by default on platforms where clang is the system 1341 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1342 options in src.conf. 1343 134420130905: 1345 The PROCDESC kernel option is now part of the GENERIC kernel 1346 configuration and is required for the rwhod(8) to work. 1347 If you are using custom kernel configuration, you should include 1348 'options PROCDESC'. 1349 135020130905: 1351 The API and ABI related to the Capsicum framework was modified 1352 in backward incompatible way. The userland libraries and programs 1353 have to be recompiled to work with the new kernel. This includes the 1354 following libraries and programs, but the whole buildworld is 1355 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1356 kdump, procstat, rwho, rwhod, uniq. 1357 135820130903: 1359 AES-NI intrinsic support has been added to gcc. The AES-NI module 1360 has been updated to use this support. A new gcc is required to build 1361 the aesni module on both i386 and amd64. 1362 136320130821: 1364 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1365 Thus "device padlock_rng" and "device rdrand_rng" should be 1366 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1367 136820130813: 1369 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1370 enables just the iconv* functionality and is now on by default. 1371 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1372 compatibility. Set WITHOUT_ICONV to build the old way. 1373 If you have been using WITH_ICONV before, you will very likely 1374 need to turn on WITH_LIBICONV_COMPAT. 1375 137620130806: 1377 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1378 Illumos origin, including ZFS. If you have INVARIANTS in your 1379 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1380 explicitly. 1381 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1382 locks if WITNESS option was set. Because that generated a lot of 1383 witness(9) reports and all of them were believed to be false 1384 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1385 can be used to achieve the previous behavior. 1386 138720130806: 1388 Timer values in IPv6 data structures now use time_uptime instead 1389 of time_second. Although this is not a user-visible functional 1390 change, userland utilities which directly use them---ndp(8), 1391 rtadvd(8), and rtsold(8) in the base system---need to be updated 1392 to r253970 or later. 1393 139420130802: 1395 find -delete can now delete the pathnames given as arguments, 1396 instead of only files found below them or if the pathname did 1397 not contain any slashes. Formerly, the following error message 1398 would result: 1399 1400 find: -delete: <path>: relative path potentially not safe 1401 1402 Deleting the pathnames given as arguments can be prevented 1403 without error messages using -mindepth 1 or by changing 1404 directory and passing "." as argument to find. This works in the 1405 old as well as the new version of find. 1406 140720130726: 1408 Behavior of devfs rules path matching has been changed. 1409 Pattern is now always matched against fully qualified devfs 1410 path and slash characters must be explicitly matched by 1411 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1412 subdirectories must be reviewed. 1413 141420130716: 1415 The default ARM ABI has changed to the ARM EABI. The old ABI is 1416 incompatible with the ARM EABI and all programs and modules will 1417 need to be rebuilt to work with a new kernel. 1418 1419 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1420 1421 NOTE: Support for the old ABI will be removed in the future and 1422 users are advised to upgrade. 1423 142420130709: 1425 pkg_install has been disconnected from the build if you really need it 1426 you should add WITH_PKGTOOLS in your src.conf(5). 1427 142820130709: 1429 Most of network statistics structures were changed to be able 1430 keep 64-bits counters. Thus all tools, that work with networking 1431 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1432 143320130618: 1434 Fix a bug that allowed a tracing process (e.g. gdb) to write 1435 to a memory-mapped file in the traced process's address space 1436 even if neither the traced process nor the tracing process had 1437 write access to that file. 1438 143920130615: 1440 CVS has been removed from the base system. An exact copy 1441 of the code is available from the devel/cvs port. 1442 144320130613: 1444 Some people report the following error after the switch to bmake: 1445 1446 make: illegal option -- J 1447 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1448 ... 1449 *** [buildworld] Error code 2 1450 1451 this likely due to an old instance of make in 1452 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1453 which src/Makefile will use that blindly, if it exists, so if 1454 you see the above error: 1455 1456 rm -rf `make -V MAKEPATH` 1457 1458 should resolve it. 1459 146020130516: 1461 Use bmake by default. 1462 Whereas before one could choose to build with bmake via 1463 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1464 make. The goal is to remove these knobs for 10-RELEASE. 1465 1466 It is worth noting that bmake (like gmake) treats the command 1467 line as the unit of failure, rather than statements within the 1468 command line. Thus '(cd some/where && dosomething)' is safer 1469 than 'cd some/where; dosomething'. The '()' allows consistent 1470 behavior in parallel build. 1471 147220130429: 1473 Fix a bug that allows NFS clients to issue READDIR on files. 1474 147520130426: 1476 The WITHOUT_IDEA option has been removed because 1477 the IDEA patent expired. 1478 147920130426: 1480 The sysctl which controls TRIM support under ZFS has been renamed 1481 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1482 enabled by default. 1483 148420130425: 1485 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1486 rather than creating it's own in the temporary directory in 1487 order allow access to bootstrapped versions of tools such as 1488 install and mtree. When upgrading from version of FreeBSD where 1489 the install command does not support -l, you will need to 1490 install a new mergemaster command if mergemaster -p is required. 1491 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1492 && make install). 1493 149420130404: 1495 Legacy ATA stack, disabled and replaced by new CAM-based one since 1496 FreeBSD 9.0, completely removed from the sources. Kernel modules 1497 atadisk and atapi*, user-level tools atacontrol and burncd are 1498 removed. Kernel option `options ATA_CAM` is now permanently enabled 1499 and removed. 1500 150120130319: 1502 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1503 and socketpair(2). Software, in particular Kerberos, may 1504 automatically detect and use these during building. The resulting 1505 binaries will not work on older kernels. 1506 150720130308: 1508 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1509 information, see the respective 20130304 entry). 1510 151120130304: 1512 Recent commits to callout(9) changed the size of struct callout, 1513 so the KBI is probably heavily disturbed. Also, some functions 1514 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1515 by macros. Every kernel module using it won't load, so rebuild 1516 is requested. 1517 1518 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1519 but does not initialize by default (because of the new CTL_DISABLE 1520 option) to save memory. To re-enable it, remove the CTL_DISABLE 1521 option from the kernel config file or set kern.cam.ctl.disable=0 1522 in /boot/loader.conf. 1523 152420130301: 1525 The ctl device has been disabled in GENERIC for i386 and amd64. 1526 This was done due to the extra memory being allocated at system 1527 initialisation time by the ctl driver which was only used if 1528 a CAM target device was created. This makes a FreeBSD system 1529 unusable on 128MB or less of RAM. 1530 153120130208: 1532 A new compression method (lz4) has been merged to -HEAD. Please 1533 refer to zpool-features(7) for more information. 1534 1535 Please refer to the "ZFS notes" section of this file for information 1536 on upgrading boot ZFS pools. 1537 153820130129: 1539 A BSD-licensed patch(1) variant has been added and is installed 1540 as bsdpatch, being the GNU version the default patch. 1541 To inverse the logic and use the BSD-licensed one as default, 1542 while having the GNU version installed as gnupatch, rebuild 1543 and install world with the WITH_BSD_PATCH knob set. 1544 154520130121: 1546 Due to the use of the new -l option to install(1) during build 1547 and install, you must take care not to directly set the INSTALL 1548 make variable in your /etc/make.conf, /etc/src.conf, or on the 1549 command line. If you wish to use the -C flag for all installs 1550 you may be able to add INSTALL+=-C to /etc/make.conf or 1551 /etc/src.conf. 1552 155320130118: 1554 The install(1) option -M has changed meaning and now takes an 1555 argument that is a file or path to append logs to. In the 1556 unlikely event that -M was the last option on the command line 1557 and the command line contained at least two files and a target 1558 directory the first file will have logs appended to it. The -M 1559 option served little practical purpose in the last decade so its 1560 use is expected to be extremely rare. 1561 156220121223: 1563 After switching to Clang as the default compiler some users of ZFS 1564 on i386 systems started to experience stack overflow kernel panics. 1565 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1566 156720121222: 1568 GEOM_LABEL now mangles label names read from file system metadata. 1569 Mangling affect labels containing spaces, non-printable characters, 1570 '%' or '"'. Device names in /etc/fstab and other places may need to 1571 be updated. 1572 157320121217: 1574 By default, only the 10 most recent kernel dumps will be saved. To 1575 restore the previous behaviour (no limit on the number of kernel dumps 1576 stored in the dump directory) add the following line to /etc/rc.conf: 1577 1578 savecore_flags="" 1579 158020121201: 1581 With the addition of auditdistd(8), a new auditdistd user is now 1582 required during installworld. "mergemaster -p" can be used to 1583 add the user prior to installworld, as documented in the handbook. 1584 158520121117: 1586 The sin6_scope_id member variable in struct sockaddr_in6 is now 1587 filled by the kernel before passing the structure to the userland via 1588 sysctl or routing socket. This means the KAME-specific embedded scope 1589 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1590 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1591 __FreeBSD_version is bumped to 1000025. 1592 159320121105: 1594 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1595 This means that the world and kernel will be compiled with clang 1596 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1597 and /usr/bin/cpp. To disable this behavior and revert to building 1598 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1599 of current may need to bootstrap WITHOUT_CLANG first if the clang 1600 build fails (its compatibility window doesn't extend to the 9 stable 1601 branch point). 1602 160320121102: 1604 The IPFIREWALL_FORWARD kernel option has been removed. Its 1605 functionality now turned on by default. 1606 160720121023: 1608 The ZERO_COPY_SOCKET kernel option has been removed and 1609 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1610 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1611 mechanism which is not safe and may result in kernel crashes. 1612 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1613 driver supports disposeable external page sized mbuf storage. 1614 Proper replacements for both zero-copy mechanisms are under 1615 consideration and will eventually lead to complete removal 1616 of the two kernel options. 1617 161820121023: 1619 The IPv4 network stack has been converted to network byte 1620 order. The following modules need to be recompiled together 1621 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1622 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1623 162420121022: 1625 Support for non-MPSAFE filesystems was removed from VFS. The 1626 VFS_VERSION was bumped, all filesystem modules shall be 1627 recompiled. 1628 162920121018: 1630 All the non-MPSAFE filesystems have been disconnected from 1631 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1632 portalfs, smbfs, xfs. 1633 163420121016: 1635 The interface cloning API and ABI has changed. The following 1636 modules need to be recompiled together with kernel: 1637 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1638 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1639 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1640 164120121015: 1642 The sdhci driver was split in two parts: sdhci (generic SD Host 1643 Controller logic) and sdhci_pci (actual hardware driver). 1644 No kernel config modifications are required, but if you 1645 load sdhc as a module you must switch to sdhci_pci instead. 1646 164720121014: 1648 Import the FUSE kernel and userland support into base system. 1649 165020121013: 1651 The GNU sort(1) program has been removed since the BSD-licensed 1652 sort(1) has been the default for quite some time and no serious 1653 problems have been reported. The corresponding WITH_GNU_SORT 1654 knob has also gone. 1655 165620121006: 1657 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1658 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1659 with new kernel. 1660 166120121001: 1662 The net80211(4) ABI has been changed to allow for improved driver 1663 PS-POLL and power-save support. All wireless drivers need to be 1664 recompiled to work with the new kernel. 1665 166620120913: 1667 The random(4) support for the VIA hardware random number 1668 generator (`PADLOCK') is no longer enabled unconditionally. 1669 Add the padlock_rng device in the custom kernel config if 1670 needed. The GENERIC kernels on i386 and amd64 do include the 1671 device, so the change only affects the custom kernel 1672 configurations. 1673 167420120908: 1675 The pf(4) packet filter ABI has been changed. pfctl(8) and 1676 snmp_pf module need to be recompiled to work with new kernel. 1677 167820120828: 1679 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1680 to -HEAD. Pools that have empty_bpobj in active state can not be 1681 imported read-write with ZFS implementations that do not support 1682 this feature. For more information read the zpool-features(5) 1683 manual page. 1684 168520120727: 1686 The sparc64 ZFS loader has been changed to no longer try to auto- 1687 detect ZFS providers based on diskN aliases but now requires these 1688 to be explicitly listed in the OFW boot-device environment variable. 1689 169020120712: 1691 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1692 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1693 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1694 169520120712: 1696 The following sysctls and tunables have been renamed for consistency 1697 with other variables: 1698 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1699 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1700 170120120628: 1702 The sort utility has been replaced with BSD sort. For now, GNU sort 1703 is also available as "gnusort" or the default can be set back to 1704 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1705 installed as "bsdsort". 1706 170720120611: 1708 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1709 Starting with this version the old system of ZFS pool versioning 1710 is superseded by "feature flags". This concept enables forward 1711 compatibility against certain future changes in functionality of ZFS 1712 pools. The first read-only compatible "feature flag" for ZFS pools 1713 is named "com.delphix:async_destroy". For more information 1714 read the new zpool-features(5) manual page. 1715 Please refer to the "ZFS notes" section of this file for information 1716 on upgrading boot ZFS pools. 1717 171820120417: 1719 The malloc(3) implementation embedded in libc now uses sources imported 1720 as contrib/jemalloc. The most disruptive API change is to 1721 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1722 delete it prior to installworld, and optionally re-create it using the 1723 new format after rebooting. See malloc.conf(5) for details 1724 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1725 NAMESPACE section). 1726 172720120328: 1728 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1729 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1730 now spelled mips. This is to aid compatibility with third-party 1731 software that expects this naming scheme in uname(3). Little-endian 1732 settings are unchanged. If you are updating a big-endian mips64 machine 1733 from before this change, you may need to set MACHINE_ARCH=mips64 in 1734 your environment before the new build system will recognize your machine. 1735 173620120306: 1737 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1738 platforms. 1739 174020120229: 1741 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1742 nullfs(5) did not pass through all behaviours to the underlying layer, 1743 as a result if we bound to a socket on the lower layer we could connect 1744 only to the lower path; if we bound to the upper layer we could connect 1745 only to the upper path. The new behavior is one can connect to both the 1746 lower and the upper paths regardless what layer path one binds to. 1747 174820120211: 1749 The getifaddrs upgrade path broken with 20111215 has been restored. 1750 If you have upgraded in between 20111215 and 20120209 you need to 1751 recompile libc again with your kernel. You still need to recompile 1752 world to be able to configure CARP but this restriction already 1753 comes from 20111215. 1754 175520120114: 1756 The set_rcvar() function has been removed from /etc/rc.subr. All 1757 base and ports rc.d scripts have been updated, so if you have a 1758 port installed with a script in /usr/local/etc/rc.d you can either 1759 hand-edit the rcvar= line, or reinstall the port. 1760 1761 An easy way to handle the mass-update of /etc/rc.d: 1762 rm /etc/rc.d/* && mergemaster -i 1763 176420120109: 1765 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1766 on the current CPU and prevents other threads from running. 1767 This behavior can be reverted using the kern.stop_scheduler_on_panic 1768 tunable/sysctl. 1769 The new behavior can be incompatible with kern.sync_on_panic. 1770 177120111215: 1772 The carp(4) facility has been changed significantly. Configuration 1773 of the CARP protocol via ifconfig(8) has changed, as well as format 1774 of CARP events submitted to devd(8) has changed. See manual pages 1775 for more information. The arpbalance feature of carp(4) is currently 1776 not supported anymore. 1777 1778 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1779 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1780 need to be recompiled. 1781 178220111122: 1783 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1784 /dev/wmistat0. 1785 178620111108: 1787 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1788 explicitely support non-MPSAFE filesystems. 1789 It is on by default for all supported platform at this present 1790 time. 1791 179220111101: 1793 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1794 i386 and pc98 GENERIC kernel configuration files. 1795 179620110930: 1797 sysinstall has been removed 1798 179920110923: 1800 The stable/9 branch created in subversion. This corresponds to the 1801 RELENG_9 branch in CVS. 1802 1803COMMON ITEMS: 1804 1805 General Notes 1806 ------------- 1807 Avoid using make -j when upgrading. While generally safe, there are 1808 sometimes problems using -j to upgrade. If your upgrade fails with 1809 -j, please try again without -j. From time to time in the past there 1810 have been problems using -j with buildworld and/or installworld. This 1811 is especially true when upgrading between "distant" versions (eg one 1812 that cross a major release boundary or several minor releases, or when 1813 several months have passed on the -current branch). 1814 1815 Sometimes, obscure build problems are the result of environment 1816 poisoning. This can happen because the make utility reads its 1817 environment when searching for values for global variables. To run 1818 your build attempts in an "environmental clean room", prefix all make 1819 commands with 'env -i '. See the env(1) manual page for more details. 1820 1821 When upgrading from one major version to another it is generally best to 1822 upgrade to the latest code in the currently installed branch first, then 1823 do an upgrade to the new branch. This is the best-tested upgrade path, 1824 and has the highest probability of being successful. Please try this 1825 approach if you encounter problems with a major version upgrade. Since 1826 the stable 4.x branch point, one has generally been able to upgade from 1827 anywhere in the most recent stable branch to head / current (or even the 1828 last couple of stable branches). See the top of this file when there's 1829 an exception. 1830 1831 When upgrading a live system, having a root shell around before 1832 installing anything can help undo problems. Not having a root shell 1833 around can lead to problems if pam has changed too much from your 1834 starting point to allow continued authentication after the upgrade. 1835 1836 This file should be read as a log of events. When a later event changes 1837 information of a prior event, the prior event should not be deleted. 1838 Instead, a pointer to the entry with the new information should be 1839 placed in the old entry. Readers of this file should also sanity check 1840 older entries before relying on them blindly. Authors of new entries 1841 should write them with this in mind. 1842 1843 ZFS notes 1844 --------- 1845 When upgrading the boot ZFS pool to a new version, always follow 1846 these two steps: 1847 1848 1.) recompile and reinstall the ZFS boot loader and boot block 1849 (this is part of "make buildworld" and "make installworld") 1850 1851 2.) update the ZFS boot block on your boot drive 1852 1853 The following example updates the ZFS boot block on the first 1854 partition (freebsd-boot) of a GPT partitioned drive ada0: 1855 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1856 1857 Non-boot pools do not need these updates. 1858 1859 To build a kernel 1860 ----------------- 1861 If you are updating from a prior version of FreeBSD (even one just 1862 a few days old), you should follow this procedure. It is the most 1863 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1864 1865 make kernel-toolchain 1866 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1867 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1868 1869 To test a kernel once 1870 --------------------- 1871 If you just want to boot a kernel once (because you are not sure 1872 if it works, or if you want to boot a known bad kernel to provide 1873 debugging information) run 1874 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1875 nextboot -k testkernel 1876 1877 To rebuild everything and install it on the current system. 1878 ----------------------------------------------------------- 1879 # Note: sometimes if you are running current you gotta do more than 1880 # is listed here if you are upgrading from a really old current. 1881 1882 <make sure you have good level 0 dumps> 1883 make buildworld 1884 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1885 make installkernel KERNCONF=YOUR_KERNEL_HERE 1886 [1] 1887 <reboot in single user> [3] 1888 mergemaster -Fp [5] 1889 make installworld 1890 mergemaster -Fi [4] 1891 make delete-old [6] 1892 <reboot> 1893 1894 To cross-install current onto a separate partition 1895 -------------------------------------------------- 1896 # In this approach we use a separate partition to hold 1897 # current's root, 'usr', and 'var' directories. A partition 1898 # holding "/", "/usr" and "/var" should be about 2GB in 1899 # size. 1900 1901 <make sure you have good level 0 dumps> 1902 <boot into -stable> 1903 make buildworld 1904 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1905 <maybe newfs current's root partition> 1906 <mount current's root partition on directory ${CURRENT_ROOT}> 1907 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1908 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1909 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1910 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1911 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1912 <reboot into current> 1913 <do a "native" rebuild/install as described in the previous section> 1914 <maybe install compatibility libraries from ports/misc/compat*> 1915 <reboot> 1916 1917 1918 To upgrade in-place from stable to current 1919 ---------------------------------------------- 1920 <make sure you have good level 0 dumps> 1921 make buildworld [9] 1922 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1923 [1] 1924 <reboot in single user> [3] 1925 mergemaster -Fp [5] 1926 make installworld 1927 mergemaster -Fi [4] 1928 make delete-old [6] 1929 <reboot> 1930 1931 Make sure that you've read the UPDATING file to understand the 1932 tweaks to various things you need. At this point in the life 1933 cycle of current, things change often and you are on your own 1934 to cope. The defaults can also change, so please read ALL of 1935 the UPDATING entries. 1936 1937 Also, if you are tracking -current, you must be subscribed to 1938 freebsd-current@freebsd.org. Make sure that before you update 1939 your sources that you have read and understood all the recent 1940 messages there. If in doubt, please track -stable which has 1941 much fewer pitfalls. 1942 1943 [1] If you have third party modules, such as vmware, you 1944 should disable them at this point so they don't crash your 1945 system on reboot. 1946 1947 [3] From the bootblocks, boot -s, and then do 1948 fsck -p 1949 mount -u / 1950 mount -a 1951 cd src 1952 adjkerntz -i # if CMOS is wall time 1953 Also, when doing a major release upgrade, it is required that 1954 you boot into single user mode to do the installworld. 1955 1956 [4] Note: This step is non-optional. Failure to do this step 1957 can result in a significant reduction in the functionality of the 1958 system. Attempting to do it by hand is not recommended and those 1959 that pursue this avenue should read this file carefully, as well 1960 as the archives of freebsd-current and freebsd-hackers mailing lists 1961 for potential gotchas. The -U option is also useful to consider. 1962 See mergemaster(8) for more information. 1963 1964 [5] Usually this step is a noop. However, from time to time 1965 you may need to do this if you get unknown user in the following 1966 step. It never hurts to do it all the time. You may need to 1967 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1968 install) after the buildworld before this step if you last updated 1969 from current before 20130425 or from -stable before 20130430. 1970 1971 [6] This only deletes old files and directories. Old libraries 1972 can be deleted by "make delete-old-libs", but you have to make 1973 sure that no program is using those libraries anymore. 1974 1975 [8] In order to have a kernel that can run the 4.x binaries needed to 1976 do an installworld, you must include the COMPAT_FREEBSD4 option in 1977 your kernel. Failure to do so may leave you with a system that is 1978 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1979 required to run the 5.x binaries on more recent kernels. And so on 1980 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1981 1982 Make sure that you merge any new devices from GENERIC since the 1983 last time you updated your kernel config file. 1984 1985 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1986 "?=" instead of the "=" assignment operator, so that buildworld can 1987 override the CPUTYPE if it needs to. 1988 1989 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1990 not on the command line, or in /etc/make.conf. buildworld will 1991 warn if it is improperly defined. 1992FORMAT: 1993 1994This file contains a list, in reverse chronological order, of major 1995breakages in tracking -current. It is not guaranteed to be a complete 1996list of such breakages, and only contains entries since September 23, 2011. 1997If you need to see UPDATING entries from before that date, you will need 1998to fetch an UPDATING file from an older FreeBSD release. 1999 2000Copyright information: 2001 2002Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2003 2004Redistribution, publication, translation and use, with or without 2005modification, in full or in part, in any form or format of this 2006document are permitted without further permission from the author. 2007 2008THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2009IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2010WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2011DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2012INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2013(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2014SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2015HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2016STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2017IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2018POSSIBILITY OF SUCH DAMAGE. 2019 2020Contact Warner Losh if you have any questions about your use of 2021this document. 2022 2023$FreeBSD$ 2024