1Updating Information for FreeBSD current users. 2 3This file is maintained and copyrighted by M. Warner Losh <[email protected]>. 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 5420180413: 55 Support for Arcnet networks has been removed. If you have device 56 arcnet or device cm in your kernel config file they must be 57 removed. 58 5920180411: 60 Support for FDDI networks has been removed. If you have device 61 fddi or device fpa in your kernel config file they must be 62 removed. 63 6420180406: 65 In addition to supporting RFC 3164 formatted messages, the 66 syslogd(8) service is now capable of parsing RFC 5424 formatted 67 log messages. The main benefit of using RFC 5424 is that clients 68 may now send log messages with timestamps containing year numbers, 69 microseconds and time zone offsets. 70 71 Similarly, the syslog(3) C library function has been altered to 72 send RFC 5424 formatted messages to the local system logging 73 daemon. On systems using syslogd(8), this change should have no 74 negative impact, as long as syslogd(8) and the C library are 75 updated at the same time. On systems using a different system 76 logging daemon, it may be necessary to make configuration 77 adjustments, depending on the software used. 78 79 When using syslog-ng, add the 'syslog-protocol' flag to local 80 input sources to enable parsing of RFC 5424 formatted messages: 81 82 source src { 83 unix-dgram("/var/run/log" flags(syslog-protocol)); 84 } 85 86 When using rsyslog, disable the 'SysSock.UseSpecialParser' option 87 of the 'imuxsock' module to let messages be processed by the 88 regular RFC 3164/5424 parsing pipeline: 89 90 module(load="imuxsock" SysSock.UseSpecialParser="off") 91 92 Do note that these changes only affect communication between local 93 applications and syslogd(8). The format that syslogd(8) uses to 94 store messages on disk or forward messages to other systems 95 remains unchanged. syslogd(8) still uses RFC 3164 for these 96 purposes. Options to customize this behaviour will be added in the 97 future. Utilities that process log files stored in /var/log are 98 thus expected to continue to function as before. 99 100 __FreeBSD_version has been incremented to 1200061 to denote this 101 change. 102 10320180328: 104 Support for token ring networks has been removed. If you 105 have "device token" in your kernel config you should remove 106 it. No device drivers supported token ring. 107 10820180323: 109 makefs was modified to be able to tag ISO9660 El Torito boot catalog 110 entries as EFI instead of overloading the i386 tag as done previously. 111 The amd64 mkisoimages.sh script used to build amd64 ISO images for 112 release was updated to use this. This may mean that makefs must be 113 updated before "make cdrom" can be run in the release directory. This 114 should be as simple as: 115 116 $ cd $SRCDIR/usr.sbin/makefs 117 $ make depend all install 118 11920180212: 120 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for 121 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf. 122 Co-existance for the transition period will come shortly. Booting is a 123 complex environment and test coverage for Lua-enabled loaders has been 124 thin, so it would be prudent to assume it might not work and make 125 provisions for backup boot methods. 126 12720180211: 128 devmatch functionality has been turned on in devd. It will automatically 129 load drivers for unattached devices. This may cause unexpected drivers to 130 be loaded. Please report any problems to current@ and [email protected]. 131 13220180114: 133 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to 134 6.0.0. Please see the 20141231 entry below for information about 135 prerequisites and upgrading, if you are not already using clang 3.5.0 136 or higher. 137 13820180110: 139 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker. 140 This means it is used to link the kernel and userland libraries and 141 executables, but is not yet installed as /usr/bin/ld by default. 142 143 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set 144 WITHOUT_LLD_BOOTSTRAP=yes 145 14620180110: 147 On i386, pmtimer has been removed. Its functionality has been folded 148 into apm. It was a no-op on ACPI in current for a while now (but was still 149 needed on i386 in FreeBSD 11 and earlier). Users may need to remove it 150 from kernel config files. 151 15220180104: 153 The use of RSS hash from the network card aka flowid has been 154 disabled by default for lagg(4) as it's currently incompatible with 155 the lacp and loadbalance protocols. 156 157 This can be re-enabled by setting the following in loader.conf: 158 net.link.lagg.default_use_flowid="1" 159 16020180102: 161 The SW_WATCHDOG option is no longer necessary to enable the 162 hardclock-based software watchdog if no hardware watchdog is 163 configured. As before, SW_WATCHDOG will cause the software 164 watchdog to be enabled even if a hardware watchdog is configured. 165 16620171215: 167 r326887 fixes the issue described in the 20171214 UPDATING entry. 168 r326888 flips the switch back to building GELI support always. 169 17020171214: 171 r362593 broke ZFS + GELI support for reasons unknown. However, 172 it also broke ZFS support generally, so GELI has been turned off 173 by default as the lesser evil in r326857. If you boot off ZFS and/or 174 GELI, it might not be a good time to update. 175 17620171125: 177 PowerPC users must update loader(8) by rebuilding world before 178 installing a new kernel, as the protocol connecting them has 179 changed. Without the update, loader metadata will not be passed 180 successfully to the kernel and users will have to enter their 181 root partition at the kernel mountroot prompt to continue booting. 182 Newer versions of loader can boot old kernels without issue. 183 18420171110: 185 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to 186 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed 187 to WITH/OUT_LOADER_GELI. 188 18920171106: 190 The naive and non-compliant support of posix_fallocate(2) in ZFS 191 has been removed as of r325320. The system call now returns EINVAL 192 when used on a ZFS file. Although the new behavior complies with the 193 standard, some consumers are not prepared to cope with it. 194 One known victim is lld prior to r325420. 195 19620171102: 197 Building in a FreeBSD src checkout will automatically create object 198 directories now rather than store files in the current directory if 199 'make obj' was not ran. Calling 'make obj' is no longer necessary. 200 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in 201 /etc/src-env.conf (not /etc/src.conf), or passing the option in the 202 environment. 203 20420171101: 205 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native 206 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified 207 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old 208 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf, 209 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building. 210 The UNIFIED_OBJDIR option is a transitional feature that will be 211 removed for 12.0 release; please migrate to the new format for any 212 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather 213 than hardcoding paths. 214 21520171028: 216 The native-xtools target no longer installs the files by default to the 217 OBJDIR. Use the native-xtools-install target with a DESTDIR to install 218 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin. 219 22020171021: 221 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 222 options are changing from controlling the build if defined / undefined 223 to controlling the build with explicit 'yes' or 'no' values. They will 224 shift to WITH/WITHOUT options to match other options in the system. 225 22620171010: 227 libstand has turned into a private library for sys/boot use only. 228 It is no longer supported as a public interface outside of sys/boot. 229 23020171005: 231 The arm port has split armv6 into armv6 and armv7. armv7 is now 232 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 233 and are running a kernel from before r324363, you will need to add 234 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 235 23620171003: 237 When building multiple kernels using KERNCONF, non-existent KERNCONF 238 files will produce an error and buildkernel will fail. Previously 239 missing KERNCONF files silently failed giving no indication as to 240 why, only to subsequently discover during installkernel that the 241 desired kernel was never built in the first place. 242 24320170912: 244 The default serial number format for CTL LUNs has changed. This will 245 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 246 or iSCSI clients care about their LUNs' serial numbers. Users who 247 require serial number stability should hardcode serial numbers in 248 /etc/ctl.conf . 249 25020170912: 251 For 32-bit arm compiled for hard-float support, soft-floating point 252 binaries now always get their shared libraries from 253 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 254 /usr/libsoft also existed). Only users with a hard-float ld.so, but 255 soft-float everything else should be affected. 256 25720170826: 258 The geli password typed at boot is now hidden. To restore the previous 259 behavior, see geli(8) for configuration options. 260 26120170825: 262 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 263 sysctl values. Minor nit, but requires a rebuild of both world/kernel 264 to complete. 265 26620170814: 267 "make check" behavior (made in ^/head@r295380) has been changed to 268 execute from a limited sandbox, as opposed to executing from 269 ${TESTSDIR}. 270 271 Behavioral changes: 272 - The "beforecheck" and "aftercheck" targets are now specified. 273 - ${CHECKDIR} (added in commit noted above) has been removed. 274 - Legacy behavior can be enabled by setting 275 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 276 277 If the limited sandbox mode is enabled, "make check" will execute 278 "make distribution", then install, execute the tests, and clean up the 279 sandbox if successful. 280 281 The "make distribution" and "make install" targets are typically run as 282 root to set appropriate permissions and ownership at installation time. 283 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 284 environment if executing "make check" with limited sandbox mode using 285 an unprivileged user. 286 28720170808: 288 Since the switch to GPT disk labels, fsck for UFS/FFS has been 289 unable to automatically find alternate superblocks. As of r322297, 290 the information needed to find alternate superblocks has been 291 moved to the end of the area reserved for the boot block. 292 Filesystems created with a newfs of this vintage or later 293 will create the recovery information. If you have a filesystem 294 created prior to this change and wish to have a recovery block 295 created for your filesystem, you can do so by running fsck in 296 foreground mode (i.e., do not use the -p or -y options). As it 297 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 298 to which you should answer yes. 299 30020170728: 301 As of r321665, an NFSv4 server configuration that services 302 Kerberos mounts or clients that do not support the uid/gid in 303 owner/owner_group string capability, must explicitly enable 304 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 305 machine's /etc/rc.conf file. 306 30720170722: 308 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 309 Please see the 20141231 entry below for information about prerequisites 310 and upgrading, if you are not already using clang 3.5.0 or higher. 311 31220170701: 313 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 314 r-commands (rlogin, rsh, etc.) to be built with the base system. 315 31620170625: 317 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 318 a very major ABI incompatible change, so users of FreeBSD/powerpc must 319 be careful when performing source upgrades. It is best to run 320 'make installworld' from an alternate root system, either a live 321 CD/memory stick, or a temporary root partition. Additionally, all ports 322 must be recompiled. powerpc64 is largely unaffected, except in the case 323 of 32-bit compatibility. All 32-bit binaries will be affected. 324 32520170623: 326 Forward compatibility for the "ino64" project have been committed. This 327 will allow most new binaries to run on older kernels in a limited 328 fashion. This prevents many of the common foot-shooting actions in the 329 upgrade as well as the limited ability to roll back the kernel across 330 the ino64 upgrade. Complicated use cases may not work properly, though 331 enough simpler ones work to allow recovery in most situations. 332 33320170620: 334 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 335 if you require the GPL compiler. 336 33720170618: 338 The internal ABI used for communication between the NFS kernel modules 339 was changed by r320085, so __FreeBSD_version was bumped to 340 ensure all the NFS related modules are updated together. 341 34220170617: 343 The ABI of struct event was changed by extending the data 344 member to 64bit and adding ext fields. For upgrade, same 345 precautions as for the entry 20170523 "ino64" must be 346 followed. 347 34820170531: 349 The GNU roff toolchain has been removed from base. To render manpages 350 which are not supported by mandoc(1), man(1) can fallback on GNU roff 351 from ports (and recommends to install it). 352 To render roff(7) documents, consider using GNU roff from ports or the 353 heirloom doctools roff toolchain from ports via pkg install groff or 354 via pkg install heirloom-doctools. 355 35620170524: 357 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 358 smaller runtime footprint builds. This is useful for embedded systems 359 which only require one chipset support. 360 361 If you load it as a module, make sure this is in /boot/loader.conf: 362 363 if_ath_load="YES" 364 365 This will load the HAL, all chip/RF backends and if_ath_pci. 366 If you have if_ath_pci in /boot/loader.conf, ensure it is after 367 if_ath or it will not load any HAL chipset support. 368 369 If you want to selectively load things (eg on ye cheape ARM/MIPS 370 platforms where RAM is at a premium) you should: 371 372 * load ath_hal 373 * load the chip modules in question 374 * load ath_rate, ath_dfs 375 * load ath_main 376 * load if_ath_pci and/or if_ath_ahb depending upon your particular 377 bus bind type - this is where probe/attach is done. 378 379 For further comments/feedback, poke adrian@ . 380 38120170523: 382 The "ino64" 64-bit inode project has been committed, which extends 383 a number of types to 64 bits. Upgrading in place requires care and 384 adherence to the documented upgrade procedure. 385 386 If using a custom kernel configuration ensure that the 387 COMPAT_FREEBSD11 option is included (as during the upgrade the 388 system will be running the ino64 kernel with the existing world). 389 390 For the safest in-place upgrade begin by removing previous build 391 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 392 full procedure documented below under the heading "To rebuild 393 everything and install it on the current system." Specifically, 394 a reboot is required after installing the new kernel before 395 installing world. 396 39720170424: 398 The NATM framework including the en(4), fatm(4), hatm(4), and 399 patm(4) devices has been removed. Consumers should plan a 400 migration before the end-of-life date for FreeBSD 11. 401 40220170420: 403 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 404 diff has not been implemented, if those are needed a newer version of 405 GNU diff is available via the diffutils package under the gdiff name. 406 40720170413: 408 As of r316810 for ipfilter, keep frags is no longer assumed when 409 keep state is specified in a rule. r316810 aligns ipfilter with 410 documentation in man pages separating keep frags from keep state. 411 This allows keep state to be specified without forcing keep frags 412 and allows keep frags to be specified independently of keep state. 413 To maintain previous behaviour, also specify keep frags with 414 keep state (as documented in ipf.conf.5). 415 41620170407: 417 arm64 builds now use the base system LLD 4.0.0 linker by default, 418 instead of requiring that the aarch64-binutils port or package be 419 installed. To continue using aarch64-binutils, set 420 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 421 42220170405: 423 The UDP optimization in entry 20160818 that added the sysctl 424 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 425 packets will no longer be treated as L3 broadcast packets. 426 42720170331: 428 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 429 use any explicitly assigned loopback address available in the jail 430 instead of using the first assigned address of the jail. 431 43220170329: 433 The ctl.ko module no longer implements the iSCSI target frontend: 434 cfiscsi.ko does instead. 435 436 If building cfiscsi.ko as a kernel module, the module can be loaded 437 via one of the following methods: 438 - `cfiscsi_load="YES"` in loader.conf(5). 439 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 440 - ctladm(8)/ctld(8), when compiled with iSCSI support 441 (`WITH_ISCSI=yes` in src.conf(5)) 442 443 Please see cfiscsi(4) for more details. 444 44520170316: 446 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 447 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 448 same source (previously, the dependency of mmcsd.ko on mmc.ko was 449 missing, but mmcsd.ko now will refuse to load if it is incompatible 450 with mmc.ko). 451 45220170315: 453 The syntax of ipfw(8) named states was changed to avoid ambiguity. 454 If you have used named states in the firewall rules, you need to modify 455 them after installworld and before rebooting. Now named states must 456 be prefixed with colon. 457 45820170311: 459 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 460 removed as the userland we provide cannot use them. The KMS version 461 (sys/dev/drm2) supports the same hardware. 462 46320170302: 464 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 465 Please see the 20141231 entry below for information about prerequisites 466 and upgrading, if you are not already using clang 3.5.0 or higher. 467 46820170221: 469 The code that provides support for ZFS .zfs/ directory functionality 470 has been reimplemented. It's not possible now to create a snapshot 471 by mkdir under .zfs/snapshot/. That should be the only user visible 472 change. 473 47420170216: 475 EISA bus support has been removed. The WITH_EISA option is no longer 476 valid. 477 47820170215: 479 MCA bus support has been removed. 480 48120170127: 482 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 483 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 484 48520170112: 486 The EM_MULTIQUEUE kernel configuration option is deprecated now that 487 the em(4) driver conforms to iflib specifications. 488 48920170109: 490 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 491 IFLIB. If you have a custom kernel configuration that excludes em(4) 492 but you use igb(4), you need to re-add em(4) to your custom configuration. 493 49420161217: 495 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 496 Please see the 20141231 entry below for information about prerequisites 497 and upgrading, if you are not already using clang 3.5.0 or higher. 498 49920161124: 500 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 501 Please see the 20141231 entry below for information about prerequisites 502 and upgrading, if you are not already using clang 3.5.0 or higher. 503 50420161119: 505 The layout of the pmap structure has changed for powerpc to put the pmap 506 statistics at the front for all CPU variations. libkvm(3) and all tools 507 that link against it need to be recompiled. 508 50920161030: 510 isl(4) and cyapa(4) drivers now require a new driver, 511 chromebook_platform(4), to work properly on Chromebook-class hardware. 512 On other types of hardware the drivers may need to be configured using 513 device hints. Please see the corresponding manual pages for details. 514 51520161017: 516 The urtwn(4) driver was merged into rtwn(4) and now consists of 517 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 518 parts. 519 Also, firmware for RTL8188CE was renamed due to possible name 520 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 521 52220161015: 523 GNU rcs has been removed from base. It is available as packages: 524 - rcs: Latest GPLv3 GNU rcs version. 525 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 526 removed from base. 527 52820161008: 529 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 530 modules now requires that the kernel configuration contain the 531 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 532 53320161003: 534 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 535 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 536 53720160924: 538 Relocatable object files with the extension of .So have been renamed 539 to use an extension of .pico instead. The purpose of this change is 540 to avoid a name clash with shared libraries on case-insensitive file 541 systems. On those file systems, foo.So is the same file as foo.so. 542 54320160918: 544 GNU rcs has been turned off by default. It can (temporarily) be built 545 again by adding WITH_RCS knob in src.conf. 546 Otherwise, GNU rcs is available from packages: 547 - rcs: Latest GPLv3 GNU rcs version. 548 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 549 55020160918: 551 The backup_uses_rcs functionality has been removed from rc.subr. 552 55320160908: 554 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 555 two separate components, QUEUE_MACRO_DEBUG_TRACE and 556 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 557 QUEUE_MACRO_DEBUG behavior. 558 55920160824: 560 r304787 changed some ioctl interfaces between the iSCSI userspace 561 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 562 rebuilt to work with new kernels. __FreeBSD_version has been bumped 563 to 1200005. 564 56520160818: 566 The UDP receive code has been updated to only treat incoming UDP 567 packets that were addressed to an L2 broadcast address as L3 568 broadcast packets. It is not expected that this will affect any 569 standards-conforming UDP application. The new behaviour can be 570 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 571 0. 572 57320160818: 574 Remove the openbsd_poll system call. 575 __FreeBSD_version has been bumped because of this. 576 57720160622: 578 The libc stub for the pipe(2) system call has been replaced with 579 a wrapper that calls the pipe2(2) system call and the pipe(2) 580 system call is now only implemented by the kernels that include 581 "options COMPAT_FREEBSD10" in their config file (this is the 582 default). Users should ensure that this option is enabled in 583 their kernel or upgrade userspace to r302092 before upgrading their 584 kernel. 585 58620160527: 587 CAM will now strip leading spaces from SCSI disks' serial numbers. 588 This will affect users who create UFS filesystems on SCSI disks using 589 those disk's diskid device nodes. For example, if /etc/fstab 590 previously contained a line like 591 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 592 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 593 transforms like gmirror may also be affected. ZFS users should 594 generally be fine. 595 59620160523: 597 The bitstring(3) API has been updated with new functionality and 598 improved performance. But it is binary-incompatible with the old API. 599 Objects built with the new headers may not be linked against objects 600 built with the old headers. 601 60220160520: 603 The brk and sbrk functions have been removed from libc on arm64. 604 Binutils from ports has been updated to not link to these 605 functions and should be updated to the latest version before 606 installing a new libc. 607 60820160517: 609 The armv6 port now defaults to hard float ABI. Limited support 610 for running both hardfloat and soft float on the same system 611 is available using the libraries installed with -DWITH_LIBSOFT. 612 This has only been tested as an upgrade path for installworld 613 and packages may fail or need manual intervention to run. New 614 packages will be needed. 615 616 To update an existing self-hosted armv6hf system, you must add 617 TARGET_ARCH=armv6 on the make command line for both the build 618 and the install steps. 619 62020160510: 621 Kernel modules compiled outside of a kernel build now default to 622 installing to /boot/modules instead of /boot/kernel. Many kernel 623 modules built this way (such as those in ports) already overrode 624 KMODDIR explicitly to install into /boot/modules. However, 625 manually building and installing a module from /sys/modules will 626 now install to /boot/modules instead of /boot/kernel. 627 62820160414: 629 The CAM I/O scheduler has been committed to the kernel. There should be 630 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 631 list of known rogues that claim support for this but actually corrupt 632 data is believed to be complete, be on the lookout for data 633 corruption. The known rogue list is believed to be complete: 634 635 o Crucial MX100, M550 drives with MU01 firmware. 636 o Micron M510 and M550 drives with MU01 firmware. 637 o Micron M500 prior to MU07 firmware 638 o Samsung 830, 840, and 850 all firmwares 639 o FCCT M500 all firmwares 640 641 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 642 with working NCQ TRIM. For Micron branded drives, see your sales rep for 643 updated firmware. Black listed drives will work correctly because these 644 drives work correctly so long as no NCQ TRIMs are sent to them. Given 645 this list is the same as found in Linux, it's believed there are no 646 other rogues in the market place. All other models from the above 647 vendors work. 648 649 To be safe, if you are at all concerned, you can quirk each of your 650 drives to prevent NCQ from being sent by setting: 651 kern.cam.ada.X.quirks="0x2" 652 in loader.conf. If the drive requires the 4k sector quirk, set the 653 quirks entry to 0x3. 654 65520160330: 656 The FAST_DEPEND build option has been removed and its functionality is 657 now the one true way. The old mkdep(1) style of 'make depend' has 658 been removed. See 20160311 for further details. 659 66020160317: 661 Resource range types have grown from unsigned long to uintmax_t. All 662 drivers, and anything using libdevinfo, need to be recompiled. 663 66420160311: 665 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 666 builds. It no longer runs mkdep(1) during 'make depend', and the 667 'make depend' stage can safely be skipped now as it is auto ran 668 when building 'make all' and will generate all SRCS and DPSRCS before 669 building anything else. Dependencies are gathered at compile time with 670 -MF flags kept in separate .depend files per object file. Users should 671 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 672 stale .depend files. 673 67420160306: 675 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 676 kernel modules. Therefore, if you load any kernel modules at boot time, 677 please install the boot loaders after you install the kernel, but before 678 rebooting, e.g.: 679 680 make buildworld 681 make buildkernel KERNCONF=YOUR_KERNEL_HERE 682 make installkernel KERNCONF=YOUR_KERNEL_HERE 683 make -C sys/boot install 684 <reboot in single user> 685 686 Then follow the usual steps, described in the General Notes section, 687 below. 688 68920160305: 690 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 691 see the 20141231 entry below for information about prerequisites and 692 upgrading, if you are not already using clang 3.5.0 or higher. 693 69420160301: 695 The AIO subsystem is now a standard part of the kernel. The 696 VFS_AIO kernel option and aio.ko kernel module have been removed. 697 Due to stability concerns, asynchronous I/O requests are only 698 permitted on sockets and raw disks by default. To enable 699 asynchronous I/O requests on all file types, set the 700 vfs.aio.enable_unsafe sysctl to a non-zero value. 701 70220160226: 703 The ELF object manipulation tool objcopy is now provided by the 704 ELF Tool Chain project rather than by GNU binutils. It should be a 705 drop-in replacement, with the addition of arm64 support. The 706 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 707 to obtain the GNU version if necessary. 708 70920160129: 710 Building ZFS pools on top of zvols is prohibited by default. That 711 feature has never worked safely; it's always been prone to deadlocks. 712 Using a zvol as the backing store for a VM guest's virtual disk will 713 still work, even if the guest is using ZFS. Legacy behavior can be 714 restored by setting vfs.zfs.vol.recursive=1. 715 71620160119: 717 The NONE and HPN patches has been removed from OpenSSH. They are 718 still available in the security/openssh-portable port. 719 72020160113: 721 With the addition of ypldap(8), a new _ypldap user is now required 722 during installworld. "mergemaster -p" can be used to add the user 723 prior to installworld, as documented in the handbook. 724 72520151216: 726 The tftp loader (pxeboot) now uses the option root-path directive. As a 727 consequence it no longer looks for a pxeboot.4th file on the tftp 728 server. Instead it uses the regular /boot infrastructure as with the 729 other loaders. 730 73120151211: 732 The code to start recording plug and play data into the modules has 733 been committed. While the old tools will properly build a new kernel, 734 a number of warnings about "unknown metadata record 4" will be produced 735 for an older kldxref. To avoid such warnings, make sure to rebuild 736 the kernel toolchain (or world). Make sure that you have r292078 or 737 later when trying to build 292077 or later before rebuilding. 738 73920151207: 740 Debug data files are now built by default with 'make buildworld' and 741 installed with 'make installworld'. This facilitates debugging but 742 requires more disk space both during the build and for the installed 743 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 744 in src.conf(5). 745 74620151130: 747 r291527 changed the internal interface between the nfsd.ko and 748 nfscommon.ko modules. As such, they must both be upgraded to-gether. 749 __FreeBSD_version has been bumped because of this. 750 75120151108: 752 Add support for unicode collation strings leads to a change of 753 order of files listed by ls(1) for example. To get back to the old 754 behaviour, set LC_COLLATE environment variable to "C". 755 756 Databases administrators will need to reindex their databases given 757 collation results will be different. 758 759 Due to a bug in install(1) it is recommended to remove the ancient 760 locales before running make installworld. 761 762 rm -rf /usr/share/locale/* 763 76420151030: 765 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 766 libcrypto.so.7 or libssl.so.7 must be recompiled. 767 76820151020: 769 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 770 Kernel modules isp_2400_multi and isp_2500_multi were removed and 771 should be replaced with isp_2400 and isp_2500 modules respectively. 772 77320151017: 774 The build previously allowed using 'make -n' to not recurse into 775 sub-directories while showing what commands would be executed, and 776 'make -n -n' to recursively show commands. Now 'make -n' will recurse 777 and 'make -N' will not. 778 77920151012: 780 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 781 and etcupdate will now use this file. A custom sendmail.cf is now 782 updated via this mechanism rather than via installworld. If you had 783 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 784 want to remove the exclusion or change it to "always install". 785 /etc/mail/sendmail.cf is now managed the same way regardless of 786 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 787 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 788 78920151011: 790 Compatibility shims for legacy ATA device names have been removed. 791 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 792 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 793 environment variables, /dev/ad* and /dev/ar* symbolic links. 794 79520151006: 796 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 797 Please see the 20141231 entry below for information about prerequisites 798 and upgrading, if you are not already using clang 3.5.0 or higher. 799 80020150924: 801 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 802 and renamed from .symbols to .debug. This reduces the size requirements 803 on the boot partition or file system and provides consistency with 804 userland debug files. 805 806 When using the supported kernel installation method the 807 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 808 as is done with /boot/kernel. 809 810 Developers wishing to maintain the historical behavior of installing 811 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 812 81320150827: 814 The wireless drivers had undergone changes that remove the 'parent 815 interface' from the ifconfig -l output. The rc.d network scripts 816 used to check presence of a parent interface in the list, so old 817 scripts would fail to start wireless networking. Thus, etcupdate(3) 818 or mergemaster(8) run is required after kernel update, to update your 819 rc.d scripts in /etc. 820 82120150827: 822 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 823 These configurations are now automatically interpreted as 824 'scrub fragment reassemble'. 825 82620150817: 827 Kernel-loadable modules for the random(4) device are back. To use 828 them, the kernel must have 829 830 device random 831 options RANDOM_LOADABLE 832 833 kldload(8) can then be used to load random_fortuna.ko 834 or random_yarrow.ko. Please note that due to the indirect 835 function calls that the loadable modules need to provide, 836 the build-in variants will be slightly more efficient. 837 838 The random(4) kernel option RANDOM_DUMMY has been retired due to 839 unpopularity. It was not all that useful anyway. 840 84120150813: 842 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 843 Control over building the ELF Tool Chain tools is now provided by 844 the WITHOUT_TOOLCHAIN knob. 845 84620150810: 847 The polarity of Pulse Per Second (PPS) capture events with the 848 uart(4) driver has been corrected. Prior to this change the PPS 849 "assert" event corresponded to the trailing edge of a positive PPS 850 pulse and the "clear" event was the leading edge of the next pulse. 851 852 As the width of a PPS pulse in a typical GPS receiver is on the 853 order of 1 millisecond, most users will not notice any significant 854 difference with this change. 855 856 Anyone who has compensated for the historical polarity reversal by 857 configuring a negative offset equal to the pulse width will need to 858 remove that workaround. 859 86020150809: 861 The default group assigned to /dev/dri entries has been changed 862 from 'wheel' to 'video' with the id of '44'. If you want to have 863 access to the dri devices please add yourself to the video group 864 with: 865 866 # pw groupmod video -m $USER 867 86820150806: 869 The menu.rc and loader.rc files will now be replaced during 870 upgrades. Please migrate local changes to menu.rc.local and 871 loader.rc.local instead. 872 87320150805: 874 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 875 strings and strip have been removed. The src.conf(5) knob 876 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 877 87820150728: 879 As ZFS requires more kernel stack pages than is the default on some 880 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 881 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 882 883 Please consider using 'options KSTACK_PAGES=X' where X is greater 884 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 885 88620150706: 887 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 888 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 889 default, i.e., they will not contain "::". For example, instead 890 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 891 to have a more specific match, such as different map entries for 892 IPv6:0:0 vs IPv6:0. This change requires that configuration 893 data (including maps, files, classes, custom ruleset, etc.) must 894 use the same format, so make certain such configuration data is 895 upgrading. As a very simple check search for patterns like 896 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 897 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 898 the cf option UseCompressedIPv6Addresses. 899 90020150630: 901 The default kernel entropy-processing algorithm is now 902 Fortuna, replacing Yarrow. 903 904 Assuming you have 'device random' in your kernel config 905 file, the configurations allow a kernel option to override 906 this default. You may choose *ONE* of: 907 908 options RANDOM_YARROW # Legacy /dev/random algorithm. 909 options RANDOM_DUMMY # Blocking-only driver. 910 911 If you have neither, you get Fortuna. For most people, 912 read no further, Fortuna will give a /dev/random that works 913 like it always used to, and the difference will be irrelevant. 914 915 If you remove 'device random', you get *NO* kernel-processed 916 entropy at all. This may be acceptable to folks building 917 embedded systems, but has complications. Carry on reading, 918 and it is assumed you know what you need. 919 920 *PLEASE* read random(4) and random(9) if you are in the 921 habit of tweaking kernel configs, and/or if you are a member 922 of the embedded community, wanting specific and not-usual 923 behaviour from your security subsystems. 924 925 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 926 random', you will NOT have a functioning /dev/random, and 927 many cryptographic features will not work, including SSH. 928 You may also find strange behaviour from the random(3) set 929 of library functions, in particular sranddev(3), srandomdev(3) 930 and arc4random(3). The reason for this is that the KERN_ARND 931 sysctl only returns entropy if it thinks it has some to 932 share, and with RANDOM_DUMMY or no 'device random' this 933 will never happen. 934 93520150623: 936 An additional fix for the issue described in the 20150614 sendmail 937 entry below has been committed in revision 284717. 938 93920150616: 940 FreeBSD's old make (fmake) has been removed from the system. It is 941 available as the devel/fmake port or via pkg install fmake. 942 94320150615: 944 The fix for the issue described in the 20150614 sendmail entry 945 below has been committed in revision 284436. The work 946 around described in that entry is no longer needed unless the 947 default setting is overridden by a confDH_PARAMETERS configuration 948 setting of '5' or pointing to a 512 bit DH parameter file. 949 95020150614: 951 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 952 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 953 and devel/kyua to version 0.20+ and adjust any calling code to work 954 with Kyuafile and kyua. 955 95620150614: 957 The import of openssl to address the FreeBSD-SA-15:10.openssl 958 security advisory includes a change which rejects handshakes 959 with DH parameters below 768 bits. sendmail releases prior 960 to 8.15.2 (not yet released), defaulted to a 512 bit 961 DH parameter setting for client connections. To work around 962 this interoperability, sendmail can be configured to use a 963 2048 bit DH parameter by: 964 965 1. Edit /etc/mail/`hostname`.mc 966 2. If a setting for confDH_PARAMETERS does not exist or 967 exists and is set to a string beginning with '5', 968 replace it with '2'. 969 3. If a setting for confDH_PARAMETERS exists and is set to 970 a file path, create a new file with: 971 openssl dhparam -out /path/to/file 2048 972 4. Rebuild the .cf file: 973 cd /etc/mail/; make; make install 974 5. Restart sendmail: 975 cd /etc/mail/; make restart 976 977 A sendmail patch is coming, at which time this file will be 978 updated. 979 98020150604: 981 Generation of legacy formatted entries have been disabled by default 982 in pwd_mkdb(8), as all base system consumers of the legacy formatted 983 entries were converted to use the new format by default when the new, 984 machine independent format have been added and supported since FreeBSD 985 5.x. 986 987 Please see the pwd_mkdb(8) manual page for further details. 988 98920150525: 990 Clang and llvm have been upgraded to 3.6.1 release. Please see the 991 20141231 entry below for information about prerequisites and upgrading, 992 if you are not already using 3.5.0 or higher. 993 99420150521: 995 TI platform code switched to using vendor DTS files and this update 996 may break existing systems running on Beaglebone, Beaglebone Black, 997 and Pandaboard: 998 999 - dtb files should be regenerated/reinstalled. Filenames are the 1000 same but content is different now 1001 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 1002 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 1003 addressing scheme is now pin 25 on /dev/gpioc3. 1004 - Pandaboard: /etc/ttys should be updated, serial console device is 1005 now /dev/ttyu2, not /dev/ttyu0 1006 100720150501: 1008 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 1009 If you need the GNU extension from groff soelim(1), install groff 1010 from package: pkg install groff, or via ports: textproc/groff. 1011 101220150423: 1013 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 1014 defined in symlink(7); previously symlinks were silently ignored. 1015 101620150415: 1017 The const qualifier has been removed from iconv(3) to comply with 1018 POSIX. The ports tree is aware of this from r384038 onwards. 1019 102020150416: 1021 Libraries specified by LIBADD in Makefiles must have a corresponding 1022 DPADD_<lib> variable to ensure correct dependencies. This is now 1023 enforced in src.libnames.mk. 1024 102520150324: 1026 From legacy ata(4) driver was removed support for SATA controllers 1027 supported by more functional drivers ahci(4), siis(4) and mvs(4). 1028 Kernel modules ataahci and ataadaptec were removed completely, 1029 replaced by ahci and mvs modules respectively. 1030 103120150315: 1032 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 1033 the 20141231 entry below for information about prerequisites and 1034 upgrading, if you are not already using 3.5.0 or higher. 1035 103620150307: 1037 The 32-bit PowerPC kernel has been changed to a position-independent 1038 executable. This can only be booted with a version of loader(8) 1039 newer than January 31, 2015, so make sure to update both world and 1040 kernel before rebooting. 1041 104220150217: 1043 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 1044 but before r278950, the RNG was not seeded properly. Immediately 1045 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 1046 ssh keys or openssl keys) that were generated w/ a kernel from that 1047 range. This does not affect programs that directly used /dev/random 1048 or /dev/urandom. All userland uses of arc4random(3) are affected. 1049 105020150210: 1051 The autofs(4) ABI was changed in order to restore binary compatibility 1052 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 1053 with the new kernel. 1054 105520150131: 1056 The powerpc64 kernel has been changed to a position-independent 1057 executable. This can only be booted with a new version of loader(8), 1058 so make sure to update both world and kernel before rebooting. 1059 106020150118: 1061 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 1062 only release, no new features have been added. Please see the 20141231 1063 entry below for information about prerequisites and upgrading, if you 1064 are not already using 3.5.0. 1065 106620150107: 1067 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 1068 taken from the ELF Tool Chain project rather than GNU binutils. They 1069 should be drop-in replacements, with the addition of arm64 support. 1070 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 1071 binutils tools, if necessary. See 20150805 for updated information. 1072 107320150105: 1074 The default Unbound configuration now enables remote control 1075 using a local socket. Users who have already enabled the 1076 local_unbound service should regenerate their configuration 1077 by running "service local_unbound setup" as root. 1078 107920150102: 1080 The GNU texinfo and GNU info pages have been removed. 1081 To be able to view GNU info pages please install texinfo from ports. 1082 108320141231: 1084 Clang, llvm and lldb have been upgraded to 3.5.0 release. 1085 1086 As of this release, a prerequisite for building clang, llvm and lldb is 1087 a C++11 capable compiler and C++11 standard library. This means that to 1088 be able to successfully build the cross-tools stage of buildworld, with 1089 clang as the bootstrap compiler, your system compiler or cross compiler 1090 should either be clang 3.3 or later, or gcc 4.8 or later, and your 1091 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 1092 later. 1093 1094 On any standard FreeBSD 10.x or 11.x installation, where clang and 1095 libc++ are on by default (that is, on x86 or arm), this should work out 1096 of the box. 1097 1098 On 9.x installations where clang is enabled by default, e.g. on x86 and 1099 powerpc, libc++ will not be enabled by default, so libc++ should be 1100 built (with clang) and installed first. If both clang and libc++ are 1101 missing, build clang first, then use it to build libc++. 1102 1103 On 8.x and earlier installations, upgrade to 9.x first, and then follow 1104 the instructions for 9.x above. 1105 1106 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 1107 default, and do not build clang. 1108 1109 Many embedded systems are resource constrained, and will not be able to 1110 build clang in a reasonable time, or in some cases at all. In those 1111 cases, cross building bootable systems on amd64 is a workaround. 1112 1113 This new version of clang introduces a number of new warnings, of which 1114 the following are most likely to appear: 1115 1116 -Wabsolute-value 1117 1118 This warns in two cases, for both C and C++: 1119 * When the code is trying to take the absolute value of an unsigned 1120 quantity, which is effectively a no-op, and almost never what was 1121 intended. The code should be fixed, if at all possible. If you are 1122 sure that the unsigned quantity can be safely cast to signed, without 1123 loss of information or undefined behavior, you can add an explicit 1124 cast, or disable the warning. 1125 1126 * When the code is trying to take an absolute value, but the called 1127 abs() variant is for the wrong type, which can lead to truncation. 1128 If you want to disable the warning instead of fixing the code, please 1129 make sure that truncation will not occur, or it might lead to unwanted 1130 side-effects. 1131 1132 -Wtautological-undefined-compare and 1133 -Wundefined-bool-conversion 1134 1135 These warn when C++ code is trying to compare 'this' against NULL, while 1136 'this' should never be NULL in well-defined C++ code. However, there is 1137 some legacy (pre C++11) code out there, which actively abuses this 1138 feature, which was less strictly defined in previous C++ versions. 1139 1140 Squid and openjdk do this, for example. The warning can be turned off 1141 for C++98 and earlier, but compiling the code in C++11 mode might result 1142 in unexpected behavior; for example, the parts of the program that are 1143 unreachable could be optimized away. 1144 114520141222: 1146 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 1147 kernel sources have been removed. The .h files remain, since some 1148 utilities include them. This will need to be fixed later. 1149 If "mount -t oldnfs ..." is attempted, it will fail. 1150 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 1151 the utilities will report errors. 1152 115320141121: 1154 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 1155 directories to top level SUBDIR variable when their parent 1156 directory is included in LOCAL_DIRS. Users with build systems with 1157 such hierarchies and without SUBDIR entries in the parent 1158 directory Makefiles should add them or add the directories to 1159 LOCAL_DIRS. 1160 116120141109: 1162 faith(4) and faithd(8) have been removed from the base system. Faith 1163 has been obsolete for a very long time. 1164 116520141104: 1166 vt(4), the new console driver, is enabled by default. It brings 1167 support for Unicode and double-width characters, as well as 1168 support for UEFI and integration with the KMS kernel video 1169 drivers. 1170 1171 You may need to update your console settings in /etc/rc.conf, 1172 most probably the keymap. During boot, /etc/rc.d/syscons will 1173 indicate what you need to do. 1174 1175 vt(4) still has issues and lacks some features compared to 1176 syscons(4). See the wiki for up-to-date information: 1177 https://wiki.freebsd.org/Newcons 1178 1179 If you want to keep using syscons(4), you can do so by adding 1180 the following line to /boot/loader.conf: 1181 kern.vty=sc 1182 118320141102: 1184 pjdfstest has been integrated into kyua as an opt-in test suite. 1185 Please see share/doc/pjdfstest/README for more details on how to 1186 execute it. 1187 118820141009: 1189 gperf has been removed from the base system for architectures 1190 that use clang. Ports that require gperf will obtain it from the 1191 devel/gperf port. 1192 119320140923: 1194 pjdfstest has been moved from tools/regression/pjdfstest to 1195 contrib/pjdfstest . 1196 119720140922: 1198 At svn r271982, The default linux compat kernel ABI has been adjusted 1199 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1200 update. If you wish to continue using the linux-f10 compat ports, 1201 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1202 encouraged to update their linux-compat packages to linux-c6 during 1203 their next update cycle. 1204 120520140729: 1206 The ofwfb driver, used to provide a graphics console on PowerPC when 1207 using vt(4), no longer allows mmap() of all physical memory. This 1208 will prevent Xorg on PowerPC with some ATI graphics cards from 1209 initializing properly unless x11-servers/xorg-server is updated to 1210 1.12.4_8 or newer. 1211 121220140723: 1213 The xdev targets have been converted to using TARGET and 1214 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1215 121620140719: 1217 The default unbound configuration has been modified to address 1218 issues with reverse lookups on networks that use private 1219 address ranges. If you use the local_unbound service, run 1220 "service local_unbound setup" as root to regenerate your 1221 configuration, then "service local_unbound reload" to load the 1222 new configuration. 1223 122420140709: 1225 The GNU texinfo and GNU info pages are not built and installed 1226 anymore, WITH_INFO knob has been added to allow to built and install 1227 them again. 1228 UPDATE: see 20150102 entry on texinfo's removal 1229 123020140708: 1231 The GNU readline library is now an INTERNALLIB - that is, it is 1232 statically linked into consumers (GDB and variants) in the base 1233 system, and the shared library is no longer installed. The 1234 devel/readline port is available for third party software that 1235 requires readline. 1236 123720140702: 1238 The Itanium architecture (ia64) has been removed from the list of 1239 known architectures. This is the first step in the removal of the 1240 architecture. 1241 124220140701: 1243 Commit r268115 has added NFSv4.1 server support, merged from 1244 projects/nfsv4.1-server. Since this includes changes to the 1245 internal interfaces between the NFS related modules, a full 1246 build of the kernel and modules will be necessary. 1247 __FreeBSD_version has been bumped. 1248 124920140629: 1250 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1251 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1252 which differs from the behaviour controlled by this knob.) 1253 125420140619: 1255 Maximal length of the serial number in CTL was increased from 16 to 1256 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1257 and ctld, need to be rebuilt to work with a new kernel. 1258 125920140606: 1260 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1261 1 respectively to match the upstream numbers. They were out of 1262 sync because, when they were originally added to FreeBSD, the 1263 upstream versions were not respected. These libraries are private 1264 and not yet built by default, so renumbering them should be a 1265 non-issue. However, unclean source trees will yield broken test 1266 programs once the operator executes "make delete-old-libs" after a 1267 "make installworld". 1268 1269 Additionally, the atf-sh binary was made private by moving it into 1270 /usr/libexec/. Already-built shell test programs will keep the 1271 path to the old binary so they will break after "make delete-old" 1272 is run. 1273 1274 If you are using WITH_TESTS=yes (not the default), wipe the object 1275 tree and rebuild from scratch to prevent spurious test failures. 1276 This is only needed once: the misnumbered libraries and misplaced 1277 binaries have been added to OptionalObsoleteFiles.inc so they will 1278 be removed during a clean upgrade. 1279 128020140512: 1281 Clang and llvm have been upgraded to 3.4.1 release. 1282 128320140508: 1284 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1285 be removed to avoid issues in the future (and has been added to 1286 ObsoleteFiles.inc). 1287 128820140505: 1289 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1290 past, it affected all builds that used the bsd.*.mk files. The old 1291 behavior was a bug, but people may have relied upon it. To get this 1292 behavior back, you can .include /etc/src.conf from /etc/make.conf 1293 (which is still global and isn't changed). This also changes the 1294 behavior of incremental builds inside the tree of individual 1295 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1296 Although this has survived make universe and some upgrade scenarios, 1297 other upgrade scenarios may have broken. At least one form of 1298 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1299 as well... In cases where MAKESYSPATH isn't working with this 1300 setting, you'll need to set it to the full path to your tree. 1301 1302 One side effect of all this cleaning up is that bsd.compiler.mk 1303 is no longer implicitly included by bsd.own.mk. If you wish to 1304 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1305 as well. 1306 130720140430: 1308 The lindev device has been removed since /dev/full has been made a 1309 standard device. __FreeBSD_version has been bumped. 1310 131120140424: 1312 The knob WITHOUT_VI was added to the base system, which controls 1313 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1314 in order to reorder files share/termcap and didn't build ex(1) as a 1315 build tool, so building/installing with WITH_VI is highly advised for 1316 build hosts for older releases. 1317 1318 This issue has been fixed in stable/9 and stable/10 in r277022 and 1319 r276991, respectively. 1320 132120140418: 1322 The YES_HESIOD knob has been removed. It has been obsolete for 1323 a decade. Please move to using WITH_HESIOD instead or your builds 1324 will silently lack HESIOD. 1325 132620140405: 1327 The uart(4) driver has been changed with respect to its handling 1328 of the low-level console. Previously the uart(4) driver prevented 1329 any process from changing the baudrate or the CLOCAL and HUPCL 1330 control flags. By removing the restrictions, operators can make 1331 changes to the serial console port without having to reboot. 1332 However, when getty(8) is started on the serial device that is 1333 associated with the low-level console, a misconfigured terminal 1334 line in /etc/ttys will now have a real impact. 1335 Before upgrading the kernel, make sure that /etc/ttys has the 1336 serial console device configured as 3wire without baudrate to 1337 preserve the previous behaviour. E.g: 1338 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1339 134020140306: 1341 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1342 to improve performance. To re-enable it, if needed, run rpcbind 1343 with command line option -W. 1344 134520140226: 1346 Switched back to the GPL dtc compiler due to updates in the upstream 1347 dts files not being supported by the BSDL dtc compiler. You will need 1348 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1349 may result while building dtb files during a kernel build if you fail 1350 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1351 135220140216: 1353 Clang and llvm have been upgraded to 3.4 release. 1354 135520140216: 1356 The nve(4) driver has been removed. Please use the nfe(4) driver 1357 for NVIDIA nForce MCP Ethernet adapters instead. 1358 135920140212: 1360 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1361 This could cause certain C++ applications using shared libraries built 1362 against the previous version of libc++ to crash. The incompatibility 1363 has now been fixed, but any C++ applications or shared libraries built 1364 between r261283 and r261801 should be recompiled. 1365 136620140204: 1367 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1368 capability mode support. Please note that enabling the feature in 1369 kernel is still highly recommended. 1370 137120140131: 1372 OpenSSH is now built with sandbox support, and will use sandbox as 1373 the default privilege separation method. This requires Capsicum 1374 capability mode support in kernel. 1375 137620140128: 1377 The libelf and libdwarf libraries have been updated to newer 1378 versions from upstream. Shared library version numbers for 1379 these two libraries were bumped. Any ports or binaries 1380 requiring these two libraries should be recompiled. 1381 __FreeBSD_version is bumped to 1100006. 1382 138320140110: 1384 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1385 instead of providing an explicit one, this would prevent such 1386 Makefile from providing its own Kyuafile in the future during 1387 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1388 intervention is needed to clean an objdir if you use NO_CLEAN: 1389 # find /usr/obj -name Kyuafile | xargs rm -f 1390 139120131213: 1392 The behavior of gss_pseudo_random() for the krb5 mechanism 1393 has changed, for applications requesting a longer random string 1394 than produced by the underlying enctype's pseudo-random() function. 1395 In particular, the random string produced from a session key of 1396 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1397 be different at the 17th octet and later, after this change. 1398 The counter used in the PRF+ construction is now encoded as a 1399 big-endian integer in accordance with RFC 4402. 1400 __FreeBSD_version is bumped to 1100004. 1401 140220131108: 1403 The WITHOUT_ATF build knob has been removed and its functionality 1404 has been subsumed into the more generic WITHOUT_TESTS. If you were 1405 using the former to disable the build of the ATF libraries, you 1406 should change your settings to use the latter. 1407 140820131025: 1409 The default version of mtree is nmtree which is obtained from 1410 NetBSD. The output is generally the same, but may vary 1411 slightly. If you found you need identical output adding 1412 "-F freebsd9" to the command line should do the trick. For the 1413 time being, the old mtree is available as fmtree. 1414 141520131014: 1416 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1417 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1418 1.1.4_8 and verify bsdyml not linked in, before running "make 1419 delete-old-libs": 1420 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1421 or 1422 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1423 142420131010: 1425 The stable/10 branch has been created in subversion from head 1426 revision r256279. 1427 1428COMMON ITEMS: 1429 1430 General Notes 1431 ------------- 1432 Avoid using make -j when upgrading. While generally safe, there are 1433 sometimes problems using -j to upgrade. If your upgrade fails with 1434 -j, please try again without -j. From time to time in the past there 1435 have been problems using -j with buildworld and/or installworld. This 1436 is especially true when upgrading between "distant" versions (eg one 1437 that cross a major release boundary or several minor releases, or when 1438 several months have passed on the -current branch). 1439 1440 Sometimes, obscure build problems are the result of environment 1441 poisoning. This can happen because the make utility reads its 1442 environment when searching for values for global variables. To run 1443 your build attempts in an "environmental clean room", prefix all make 1444 commands with 'env -i '. See the env(1) manual page for more details. 1445 1446 When upgrading from one major version to another it is generally best to 1447 upgrade to the latest code in the currently installed branch first, then 1448 do an upgrade to the new branch. This is the best-tested upgrade path, 1449 and has the highest probability of being successful. Please try this 1450 approach if you encounter problems with a major version upgrade. Since 1451 the stable 4.x branch point, one has generally been able to upgrade from 1452 anywhere in the most recent stable branch to head / current (or even the 1453 last couple of stable branches). See the top of this file when there's 1454 an exception. 1455 1456 When upgrading a live system, having a root shell around before 1457 installing anything can help undo problems. Not having a root shell 1458 around can lead to problems if pam has changed too much from your 1459 starting point to allow continued authentication after the upgrade. 1460 1461 This file should be read as a log of events. When a later event changes 1462 information of a prior event, the prior event should not be deleted. 1463 Instead, a pointer to the entry with the new information should be 1464 placed in the old entry. Readers of this file should also sanity check 1465 older entries before relying on them blindly. Authors of new entries 1466 should write them with this in mind. 1467 1468 ZFS notes 1469 --------- 1470 When upgrading the boot ZFS pool to a new version, always follow 1471 these two steps: 1472 1473 1.) recompile and reinstall the ZFS boot loader and boot block 1474 (this is part of "make buildworld" and "make installworld") 1475 1476 2.) update the ZFS boot block on your boot drive 1477 1478 The following example updates the ZFS boot block on the first 1479 partition (freebsd-boot) of a GPT partitioned drive ada0: 1480 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1481 1482 Non-boot pools do not need these updates. 1483 1484 To build a kernel 1485 ----------------- 1486 If you are updating from a prior version of FreeBSD (even one just 1487 a few days old), you should follow this procedure. It is the most 1488 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1489 1490 make kernel-toolchain 1491 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1492 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1493 1494 To test a kernel once 1495 --------------------- 1496 If you just want to boot a kernel once (because you are not sure 1497 if it works, or if you want to boot a known bad kernel to provide 1498 debugging information) run 1499 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1500 nextboot -k testkernel 1501 1502 To rebuild everything and install it on the current system. 1503 ----------------------------------------------------------- 1504 # Note: sometimes if you are running current you gotta do more than 1505 # is listed here if you are upgrading from a really old current. 1506 1507 <make sure you have good level 0 dumps> 1508 make buildworld 1509 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1510 make installkernel KERNCONF=YOUR_KERNEL_HERE 1511 [1] 1512 <reboot in single user> [3] 1513 mergemaster -Fp [5] 1514 make installworld 1515 mergemaster -Fi [4] 1516 make delete-old [6] 1517 <reboot> 1518 1519 To cross-install current onto a separate partition 1520 -------------------------------------------------- 1521 # In this approach we use a separate partition to hold 1522 # current's root, 'usr', and 'var' directories. A partition 1523 # holding "/", "/usr" and "/var" should be about 2GB in 1524 # size. 1525 1526 <make sure you have good level 0 dumps> 1527 <boot into -stable> 1528 make buildworld 1529 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1530 <maybe newfs current's root partition> 1531 <mount current's root partition on directory ${CURRENT_ROOT}> 1532 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1533 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1534 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1535 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1536 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1537 <reboot into current> 1538 <do a "native" rebuild/install as described in the previous section> 1539 <maybe install compatibility libraries from ports/misc/compat*> 1540 <reboot> 1541 1542 1543 To upgrade in-place from stable to current 1544 ---------------------------------------------- 1545 <make sure you have good level 0 dumps> 1546 make buildworld [9] 1547 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8] 1548 make installkernel KERNCONF=YOUR_KERNEL_HERE 1549 [1] 1550 <reboot in single user> [3] 1551 mergemaster -Fp [5] 1552 make installworld 1553 mergemaster -Fi [4] 1554 make delete-old [6] 1555 <reboot> 1556 1557 Make sure that you've read the UPDATING file to understand the 1558 tweaks to various things you need. At this point in the life 1559 cycle of current, things change often and you are on your own 1560 to cope. The defaults can also change, so please read ALL of 1561 the UPDATING entries. 1562 1563 Also, if you are tracking -current, you must be subscribed to 1564 [email protected]. Make sure that before you update 1565 your sources that you have read and understood all the recent 1566 messages there. If in doubt, please track -stable which has 1567 much fewer pitfalls. 1568 1569 [1] If you have third party modules, such as vmware, you 1570 should disable them at this point so they don't crash your 1571 system on reboot. 1572 1573 [3] From the bootblocks, boot -s, and then do 1574 fsck -p 1575 mount -u / 1576 mount -a 1577 cd src 1578 adjkerntz -i # if CMOS is wall time 1579 Also, when doing a major release upgrade, it is required that 1580 you boot into single user mode to do the installworld. 1581 1582 [4] Note: This step is non-optional. Failure to do this step 1583 can result in a significant reduction in the functionality of the 1584 system. Attempting to do it by hand is not recommended and those 1585 that pursue this avenue should read this file carefully, as well 1586 as the archives of freebsd-current and freebsd-hackers mailing lists 1587 for potential gotchas. The -U option is also useful to consider. 1588 See mergemaster(8) for more information. 1589 1590 [5] Usually this step is a no-op. However, from time to time 1591 you may need to do this if you get unknown user in the following 1592 step. It never hurts to do it all the time. You may need to 1593 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1594 install) after the buildworld before this step if you last updated 1595 from current before 20130425 or from -stable before 20130430. 1596 1597 [6] This only deletes old files and directories. Old libraries 1598 can be deleted by "make delete-old-libs", but you have to make 1599 sure that no program is using those libraries anymore. 1600 1601 [8] In order to have a kernel that can run the 4.x binaries needed to 1602 do an installworld, you must include the COMPAT_FREEBSD4 option in 1603 your kernel. Failure to do so may leave you with a system that is 1604 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1605 required to run the 5.x binaries on more recent kernels. And so on 1606 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1607 1608 Make sure that you merge any new devices from GENERIC since the 1609 last time you updated your kernel config file. 1610 1611 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1612 "?=" instead of the "=" assignment operator, so that buildworld can 1613 override the CPUTYPE if it needs to. 1614 1615 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1616 not on the command line, or in /etc/make.conf. buildworld will 1617 warn if it is improperly defined. 1618FORMAT: 1619 1620This file contains a list, in reverse chronological order, of major 1621breakages in tracking -current. It is not guaranteed to be a complete 1622list of such breakages, and only contains entries since September 23, 2011. 1623If you need to see UPDATING entries from before that date, you will need 1624to fetch an UPDATING file from an older FreeBSD release. 1625 1626Copyright information: 1627 1628Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1629 1630Redistribution, publication, translation and use, with or without 1631modification, in full or in part, in any form or format of this 1632document are permitted without further permission from the author. 1633 1634THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1635IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1636WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1637DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1638INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1639(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1640SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1641HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1642STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1643IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1644POSSIBILITY OF SUCH DAMAGE. 1645 1646Contact Warner Losh if you have any questions about your use of 1647this document. 1648 1649$FreeBSD$ 1650