1 Updating 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/makeworld.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 13.x IS SLOW: 20 FreeBSD 13.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 3420181218: 35 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to 36 7.0.1. Please see the 20141231 entry below for information about 37 prerequisites and upgrading, if you are not already using clang 3.5.0 38 or higher. 39 4020181126: 41 On amd64, arm64 and armv7 (architectures that install LLVM's ld.lld 42 linker as /usr/bin/ld) GNU ld is no longer installed as ld.bfd, as 43 it produces broken binaries when ifuncs are in use. Users needing 44 GNU ld should install the binutils port or package. 45 4620181123: 47 The BSD crtbegin and crtend code has been enabled by default. It has 48 had extensive testing on amd64, arm64, and i386. It can be disabled 49 by building a world with -DWITHOUT_BSD_CRTBEGIN. 50 5120181115: 52 The set of CTM commands (ctm, ctm_smail, ctm_rmail, ctm_dequeue) 53 has been converted to a port (misc/ctm) and will be removed from 54 FreeBSD-13. It is available as a package (ctm) for all supported 55 FreeBSD versions. 56 5720181110: 58 The default newsyslog.conf(5) file has been changed to only include 59 files in /etc/newsyslog.conf.d/ and /usr/local/etc/newsyslog.conf.d/ if 60 the filenames end in '.conf' and do not begin with a '.'. 61 62 You should check the configuration files in these two directories match 63 this naming convention. You can verify which configuration files are 64 being included using the command: 65 $ newsyslog -Nrv 66 6720181015: 68 Ports for the DRM modules have been simplified. Now, amd64 users should 69 just install the drm-kmod port. All others should install 70 drm-legacy-kmod. 71 72 Graphics hardware that's newer than about 2010 usually works with 73 drm-kmod. For hardware older than 2013, however, some users will need 74 to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older 75 than 2008 usually only works in drm-legacy-kmod. The graphics team can 76 only commit to hardware made since 2013 due to the complexity of the 77 market and difficulty to test all the older cards effectively. If you 78 have hardware supported by drm-kmod, you are strongly encouraged to use 79 that as you will get better support. 80 81 Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined 82 elsewhere, the drm and drm2 modules will be eliminated from the src base 83 soon (with a limited exception for arm). Please update to the package asap 84 and report any issues to x11@freebsd.org. 85 86 Generally, anybody using the drm*-kmod packages should add 87 WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty 88 cross-threading surprises, especially with automatic driver 89 loading from X11 startup. These will become the defaults in 13-current 90 shortly. 91 9220181012: 93 The ixlv(4) driver has been renamed to iavf(4). As a consequence, 94 custom kernel and module loading configuration files must be updated 95 accordingly. Moreover, interfaces previous presented as ixlvN to the 96 system are now exposed as iavfN and network configuration files must 97 be adjusted as necessary. 98 9920181009: 100 OpenSSL has been updated to version 1.1.1. This update included 101 additional various API changes througout the base system. It is 102 important to rebuild third-party software after upgrading. The value 103 of __FreeBSD_version has been bumped accordingly. 104 10520181006: 106 The legacy DRM modules and drivers have now been added to the loader's 107 module blacklist, in favor of loading them with kld_list in rc.conf(5). 108 The module blacklist may be overridden with the loader.conf(5) 109 'module_blacklist' variable, but loading them via rc.conf(5) is strongly 110 encouraged. 111 11220181002: 113 The cam(4) based nda(4) driver will be used over nvd(4) by default on 114 powerpc64. You may set 'options NVME_USE_NVD=1' in your kernel conf or 115 loader tunable 'hw.nvme.use_nvd=1' if you wish to use the existing 116 driver. Make sure to edit /boot/etc/kboot.conf and fstab to use the 117 nda device name. 118 11920180913: 120 Reproducible build mode is now on by default, in preparation for 121 FreeBSD 12.0. This eliminates build metadata such as the user, 122 host, and time from the kernel (and uname), unless the working tree 123 corresponds to a modified checkout from a version control system. 124 The previous behavior can be obtained by setting the /etc/src.conf 125 knob WITHOUT_REPRODUCIBLE_BUILD. 126 12720180826: 128 The Yarrow CSPRNG has been removed from the kernel as it has not been 129 supported by its designers since at least 2003. Fortuna has been the 130 default since FreeBSD-11. 131 13220180822: 133 devctl freeze/thaw have gone into the tree, the rc scripts have been 134 updated to use them and devmatch has been changed. You should update 135 kernel, userland and rc scripts all at the same time. 136 13720180818: 138 The default interpreter has been switched from 4th to Lua. 139 LOADER_DEFAULT_INTERP, documented in build(7), will override the default 140 interpreter. If you have custom FORTH code you will need to set 141 LOADER_DEFAULT_INTERP=4th (valid values are 4th, lua or simp) in 142 src.conf for the build. This will create default hard links between 143 loader and loader_4th instead of loader and loader_lua, the new default. 144 If you are using UEFI it will create the proper hard link to loader.efi. 145 146 bhyve uses userboot.so. It remains 4th-only until some issues are solved 147 regarding coexisting with multiple versions of FreeBSD are resolved. 148 14920180815: 150 ls(1) now respects the COLORTERM environment variable used in other 151 systems and software to indicate that a colored terminal is both 152 supported and desired. If ls(1) is suddenly emitting colors, they may 153 be disabled again by either removing the unwanted COLORTERM from your 154 environment, or using `ls --color=never`. The ls(1) specific CLICOLOR 155 may not be observed in a future release. 156 15720180808: 158 The default pager for most commands has been changed to "less". To 159 restore the old behavior, set PAGER="more" and MANPAGER="more -s" in 160 your environment. 161 16220180731: 163 The jedec_ts(4) driver has been removed. A superset of its functionality 164 is available in the jedec_dimm(4) driver, and the manpage for that 165 driver includes migration instructions. If you have "device jedec_ts" 166 in your kernel configuration file, it must be removed. 167 16820180730: 169 amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default. 170 This should have no effect if the kernel is booted via BIOS/legacy boot. 171 EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system 172 has a buggy firmware that prevents a successful boot due to use of 173 runtime services. 174 17520180727: 176 Atmel AT91RM9200 and AT91SAM9, Cavium CNS 11xx and XScale 177 support has been removed from the tree. These ports were 178 obsolete and/or known to be broken for many years. 179 18020180723: 181 loader.efi has been augmented to participate more fully in the 182 UEFI boot manager protocol. loader.efi will now look at the 183 BootXXXX environment variable to determine if a specific kernel 184 or root partition was specified. XXXX is derived from BootCurrent. 185 efibootmgr(8) manages these standard UEFI variables. 186 18720180720: 188 zfsloader's functionality has now been folded into loader. 189 zfsloader is no longer necessary once you've updated your 190 boot blocks. For a transition period, we will install a 191 hardlink for zfsloader to loader to allow a smooth transition 192 until the boot blocks can be updated (hard link because old 193 zfs boot blocks don't understand symlinks). 194 19520180719: 196 ARM64 now have efifb support, if you want to have serial console 197 on your arm64 board when an screen is connected and the bootloader 198 setup a frambuffer for us to use, just add : 199 boot_serial=YES 200 boot_multicons=YES 201 in /boot/loader.conf 202 For Raspberry Pi 3 (RPI) users, this is needed even if you don't have 203 an screen connected as the firmware will setup a framebuffer are that 204 u-boot will expose as an EFI framebuffer. 205 20620180719: 207 New uid:gid added, ntpd:ntpd (123:123). Be sure to run mergemaster 208 or take steps to update /etc/passwd before doing installworld on 209 existing systems. Do not skip the "mergemaster -Fp" step before 210 installworld, as described in the update procedures near the bottom 211 of this document. Also, rc.d/ntpd now starts ntpd(8) as user ntpd 212 if the new mac_ntpd(4) policy is available, unless ntpd_flags or 213 the ntp config file contain options that change file/dir locations. 214 When such options (e.g., "statsdir" or "crypto") are used, ntpd can 215 still be run as non-root by setting ntpd_user=ntpd in rc.conf, after 216 taking steps to ensure that all required files/dirs are accessible 217 by the ntpd user. 218 21920180717: 220 Big endian arm support has been removed. 221 22220180711: 223 The static environment setup in kernel configs is no longer mutually 224 exclusive with the loader(8) environment by default. In order to 225 restore the previous default behavior of disabling the loader(8) 226 environment if a static environment is present, you must specify 227 loader_env.disabled=1 in the static environment. 228 22920180705: 230 The ABI of syscalls used by management tools like sockstat and 231 netstat has been broken to allow 32-bit binaries to work on 232 64-bit kernels without modification. These programs will need 233 to match the kernel in order to function. External programs may 234 require minor modifications to accommodate a change of type in 235 structures from pointers to 64-bit virtual addresses. 236 23720180702: 238 On i386 and amd64 atomics are now inlined. Out of tree modules using 239 atomics will need to be rebuilt. 240 24120180701: 242 The '%I' format in the kern.corefile sysctl limits the number of 243 core files that a process can generate to the number stored in the 244 debug.ncores sysctl. The '%I' format is replaced by the single digit 245 index. Previously, if all indexes were taken the kernel would overwrite 246 only a core file with the highest index in a filename. 247 Currently the system will create a new core file if there is a free 248 index or if all slots are taken it will overwrite the oldest one. 249 25020180630: 251 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to 252 6.0.1. Please see the 20141231 entry below for information about 253 prerequisites and upgrading, if you are not already using clang 3.5.0 254 or higher. 255 25620180628: 257 r335753 introduced a new quoting method. However, etc/devd/devmatch.conf 258 needed to be changed to work with it. This change was made with r335763 259 and requires a mergemaster / etcupdate / etc to update the installed file. 260 26120180612: 262 r334930 changed the interface between the NFS modules, so they all 263 need to be rebuilt. r335018 did a __FreeBSD_version bump for this. 264 26520180530: 266 As of r334391 lld is the default amd64 system linker; it is installed 267 as /usr/bin/ld. Kernel build workarounds (see 20180510 entry) are no 268 longer necessary. 269 27020180530: 271 The kernel / userland interface for devinfo changed, so you'll 272 need a new kernel and userland as a pair for it to work (rebuilding 273 lib/libdevinfo is all that's required). devinfo and devmatch will 274 not work, but everything else will when there's a mismatch. 275 27620180523: 277 The on-disk format for hwpmc callchain records has changed to include 278 threadid corresponding to a given record. This changes the field offsets 279 and thus requires that libpmcstat be rebuilt before using a kernel 280 later than r334108. 281 28220180517: 283 The vxge(4) driver has been removed. This driver was introduced into 284 HEAD one week before the Exar left the Ethernet market and is not 285 known to be used. If you have device vxge in your kernel config file 286 it must be removed. 287 28820180510: 289 The amd64 kernel now requires a ld that supports ifunc to produce a 290 working kernel, either lld or a newer binutils. lld is built by default 291 on amd64, and the 'buildkernel' target uses it automatically. However, 292 it is not the default linker, so building the kernel the traditional 293 way requires LD=ld.lld on the command line (or LD=/usr/local/bin/ld for 294 binutils port/package). lld will soon be default, and this requirement 295 will go away. 296 297 NOTE: As of r334391 lld is the default system linker on amd64, and no 298 workaround is necessary. 299 30020180508: 301 The nxge(4) driver has been removed. This driver was for PCI-X 10g 302 cards made by s2io/Neterion. The company was aquired by Exar and 303 no longer sells or supports Ethernet products. If you have device 304 nxge in your kernel config file it must be removed. 305 30620180504: 307 The tz database (tzdb) has been updated to 2018e. This version more 308 correctly models time stamps in time zones with negative DST such as 309 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and 310 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only 311 time zone abbreviations and the tm_isdst flag. 312 31320180502: 314 The ixgb(4) driver has been removed. This driver was for an early and 315 uncommon legacy PCI 10GbE for a single ASIC, Intel 82597EX. Intel 316 quickly shifted to the long lived ixgbe family. If you have device 317 ixgb in your kernel config file it must be removed. 318 31920180501: 320 The lmc(4) driver has been removed. This was a WAN interface 321 card that was already reportedly rare in 2003, and had an ambiguous 322 license. If you have device lmc in your kernel config file it must 323 be removed. 324 32520180413: 326 Support for Arcnet networks has been removed. If you have device 327 arcnet or device cm in your kernel config file they must be 328 removed. 329 33020180411: 331 Support for FDDI networks has been removed. If you have device 332 fddi or device fpa in your kernel config file they must be 333 removed. 334 33520180406: 336 In addition to supporting RFC 3164 formatted messages, the 337 syslogd(8) service is now capable of parsing RFC 5424 formatted 338 log messages. The main benefit of using RFC 5424 is that clients 339 may now send log messages with timestamps containing year numbers, 340 microseconds and time zone offsets. 341 342 Similarly, the syslog(3) C library function has been altered to 343 send RFC 5424 formatted messages to the local system logging 344 daemon. On systems using syslogd(8), this change should have no 345 negative impact, as long as syslogd(8) and the C library are 346 updated at the same time. On systems using a different system 347 logging daemon, it may be necessary to make configuration 348 adjustments, depending on the software used. 349 350 When using syslog-ng, add the 'syslog-protocol' flag to local 351 input sources to enable parsing of RFC 5424 formatted messages: 352 353 source src { 354 unix-dgram("/var/run/log" flags(syslog-protocol)); 355 } 356 357 When using rsyslog, disable the 'SysSock.UseSpecialParser' option 358 of the 'imuxsock' module to let messages be processed by the 359 regular RFC 3164/5424 parsing pipeline: 360 361 module(load="imuxsock" SysSock.UseSpecialParser="off") 362 363 Do note that these changes only affect communication between local 364 applications and syslogd(8). The format that syslogd(8) uses to 365 store messages on disk or forward messages to other systems 366 remains unchanged. syslogd(8) still uses RFC 3164 for these 367 purposes. Options to customize this behaviour will be added in the 368 future. Utilities that process log files stored in /var/log are 369 thus expected to continue to function as before. 370 371 __FreeBSD_version has been incremented to 1200061 to denote this 372 change. 373 37420180328: 375 Support for token ring networks has been removed. If you 376 have "device token" in your kernel config you should remove 377 it. No device drivers supported token ring. 378 37920180323: 380 makefs was modified to be able to tag ISO9660 El Torito boot catalog 381 entries as EFI instead of overloading the i386 tag as done previously. 382 The amd64 mkisoimages.sh script used to build amd64 ISO images for 383 release was updated to use this. This may mean that makefs must be 384 updated before "make cdrom" can be run in the release directory. This 385 should be as simple as: 386 387 $ cd $SRCDIR/usr.sbin/makefs 388 $ make depend all install 389 39020180212: 391 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for 392 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf. 393 Co-existance for the transition period will come shortly. Booting is a 394 complex environment and test coverage for Lua-enabled loaders has been 395 thin, so it would be prudent to assume it might not work and make 396 provisions for backup boot methods. 397 39820180211: 399 devmatch functionality has been turned on in devd. It will automatically 400 load drivers for unattached devices. This may cause unexpected drivers to 401 be loaded. Please report any problems to current@ and imp@freebsd.org. 402 40320180114: 404 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to 405 6.0.0. Please see the 20141231 entry below for information about 406 prerequisites and upgrading, if you are not already using clang 3.5.0 407 or higher. 408 40920180110: 410 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker. 411 This means it is used to link the kernel and userland libraries and 412 executables, but is not yet installed as /usr/bin/ld by default. 413 414 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set 415 WITHOUT_LLD_BOOTSTRAP=yes 416 41720180110: 418 On i386, pmtimer has been removed. Its functionality has been folded 419 into apm. It was a no-op on ACPI in current for a while now (but was still 420 needed on i386 in FreeBSD 11 and earlier). Users may need to remove it 421 from kernel config files. 422 42320180104: 424 The use of RSS hash from the network card aka flowid has been 425 disabled by default for lagg(4) as it's currently incompatible with 426 the lacp and loadbalance protocols. 427 428 This can be re-enabled by setting the following in loader.conf: 429 net.link.lagg.default_use_flowid="1" 430 43120180102: 432 The SW_WATCHDOG option is no longer necessary to enable the 433 hardclock-based software watchdog if no hardware watchdog is 434 configured. As before, SW_WATCHDOG will cause the software 435 watchdog to be enabled even if a hardware watchdog is configured. 436 43720171215: 438 r326887 fixes the issue described in the 20171214 UPDATING entry. 439 r326888 flips the switch back to building GELI support always. 440 44120171214: 442 r362593 broke ZFS + GELI support for reasons unknown. However, 443 it also broke ZFS support generally, so GELI has been turned off 444 by default as the lesser evil in r326857. If you boot off ZFS and/or 445 GELI, it might not be a good time to update. 446 44720171125: 448 PowerPC users must update loader(8) by rebuilding world before 449 installing a new kernel, as the protocol connecting them has 450 changed. Without the update, loader metadata will not be passed 451 successfully to the kernel and users will have to enter their 452 root partition at the kernel mountroot prompt to continue booting. 453 Newer versions of loader can boot old kernels without issue. 454 45520171110: 456 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to 457 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed 458 to WITH/OUT_LOADER_GELI. 459 46020171106: 461 The naive and non-compliant support of posix_fallocate(2) in ZFS 462 has been removed as of r325320. The system call now returns EINVAL 463 when used on a ZFS file. Although the new behavior complies with the 464 standard, some consumers are not prepared to cope with it. 465 One known victim is lld prior to r325420. 466 46720171102: 468 Building in a FreeBSD src checkout will automatically create object 469 directories now rather than store files in the current directory if 470 'make obj' was not ran. Calling 'make obj' is no longer necessary. 471 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in 472 /etc/src-env.conf (not /etc/src.conf), or passing the option in the 473 environment. 474 47520171101: 476 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native 477 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified 478 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old 479 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf, 480 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building. 481 The UNIFIED_OBJDIR option is a transitional feature that will be 482 removed for 12.0 release; please migrate to the new format for any 483 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather 484 than hardcoding paths. 485 48620171028: 487 The native-xtools target no longer installs the files by default to the 488 OBJDIR. Use the native-xtools-install target with a DESTDIR to install 489 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin. 490 49120171021: 492 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 493 options are changing from controlling the build if defined / undefined 494 to controlling the build with explicit 'yes' or 'no' values. They will 495 shift to WITH/WITHOUT options to match other options in the system. 496 49720171010: 498 libstand has turned into a private library for sys/boot use only. 499 It is no longer supported as a public interface outside of sys/boot. 500 50120171005: 502 The arm port has split armv6 into armv6 and armv7. armv7 is now 503 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 504 and are running a kernel from before r324363, you will need to add 505 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 506 50720171003: 508 When building multiple kernels using KERNCONF, non-existent KERNCONF 509 files will produce an error and buildkernel will fail. Previously 510 missing KERNCONF files silently failed giving no indication as to 511 why, only to subsequently discover during installkernel that the 512 desired kernel was never built in the first place. 513 51420170912: 515 The default serial number format for CTL LUNs has changed. This will 516 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 517 or iSCSI clients care about their LUNs' serial numbers. Users who 518 require serial number stability should hardcode serial numbers in 519 /etc/ctl.conf . 520 52120170912: 522 For 32-bit arm compiled for hard-float support, soft-floating point 523 binaries now always get their shared libraries from 524 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 525 /usr/libsoft also existed). Only users with a hard-float ld.so, but 526 soft-float everything else should be affected. 527 52820170826: 529 The geli password typed at boot is now hidden. To restore the previous 530 behavior, see geli(8) for configuration options. 531 53220170825: 533 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 534 sysctl values. Minor nit, but requires a rebuild of both world/kernel 535 to complete. 536 53720170814: 538 "make check" behavior (made in ^/head@r295380) has been changed to 539 execute from a limited sandbox, as opposed to executing from 540 ${TESTSDIR}. 541 542 Behavioral changes: 543 - The "beforecheck" and "aftercheck" targets are now specified. 544 - ${CHECKDIR} (added in commit noted above) has been removed. 545 - Legacy behavior can be enabled by setting 546 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 547 548 If the limited sandbox mode is enabled, "make check" will execute 549 "make distribution", then install, execute the tests, and clean up the 550 sandbox if successful. 551 552 The "make distribution" and "make install" targets are typically run as 553 root to set appropriate permissions and ownership at installation time. 554 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 555 environment if executing "make check" with limited sandbox mode using 556 an unprivileged user. 557 55820170808: 559 Since the switch to GPT disk labels, fsck for UFS/FFS has been 560 unable to automatically find alternate superblocks. As of r322297, 561 the information needed to find alternate superblocks has been 562 moved to the end of the area reserved for the boot block. 563 Filesystems created with a newfs of this vintage or later 564 will create the recovery information. If you have a filesystem 565 created prior to this change and wish to have a recovery block 566 created for your filesystem, you can do so by running fsck in 567 foreground mode (i.e., do not use the -p or -y options). As it 568 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 569 to which you should answer yes. 570 57120170728: 572 As of r321665, an NFSv4 server configuration that services 573 Kerberos mounts or clients that do not support the uid/gid in 574 owner/owner_group string capability, must explicitly enable 575 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 576 machine's /etc/rc.conf file. 577 57820170722: 579 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 580 Please see the 20141231 entry below for information about prerequisites 581 and upgrading, if you are not already using clang 3.5.0 or higher. 582 58320170701: 584 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 585 r-commands (rlogin, rsh, etc.) to be built with the base system. 586 58720170625: 588 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 589 a very major ABI incompatible change, so users of FreeBSD/powerpc must 590 be careful when performing source upgrades. It is best to run 591 'make installworld' from an alternate root system, either a live 592 CD/memory stick, or a temporary root partition. Additionally, all ports 593 must be recompiled. powerpc64 is largely unaffected, except in the case 594 of 32-bit compatibility. All 32-bit binaries will be affected. 595 59620170623: 597 Forward compatibility for the "ino64" project have been committed. This 598 will allow most new binaries to run on older kernels in a limited 599 fashion. This prevents many of the common foot-shooting actions in the 600 upgrade as well as the limited ability to roll back the kernel across 601 the ino64 upgrade. Complicated use cases may not work properly, though 602 enough simpler ones work to allow recovery in most situations. 603 60420170620: 605 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 606 if you require the GPL compiler. 607 60820170618: 609 The internal ABI used for communication between the NFS kernel modules 610 was changed by r320085, so __FreeBSD_version was bumped to 611 ensure all the NFS related modules are updated together. 612 61320170617: 614 The ABI of struct event was changed by extending the data 615 member to 64bit and adding ext fields. For upgrade, same 616 precautions as for the entry 20170523 "ino64" must be 617 followed. 618 61920170531: 620 The GNU roff toolchain has been removed from base. To render manpages 621 which are not supported by mandoc(1), man(1) can fallback on GNU roff 622 from ports (and recommends to install it). 623 To render roff(7) documents, consider using GNU roff from ports or the 624 heirloom doctools roff toolchain from ports via pkg install groff or 625 via pkg install heirloom-doctools. 626 62720170524: 628 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 629 smaller runtime footprint builds. This is useful for embedded systems 630 which only require one chipset support. 631 632 If you load it as a module, make sure this is in /boot/loader.conf: 633 634 if_ath_load="YES" 635 636 This will load the HAL, all chip/RF backends and if_ath_pci. 637 If you have if_ath_pci in /boot/loader.conf, ensure it is after 638 if_ath or it will not load any HAL chipset support. 639 640 If you want to selectively load things (eg on ye cheape ARM/MIPS 641 platforms where RAM is at a premium) you should: 642 643 * load ath_hal 644 * load the chip modules in question 645 * load ath_rate, ath_dfs 646 * load ath_main 647 * load if_ath_pci and/or if_ath_ahb depending upon your particular 648 bus bind type - this is where probe/attach is done. 649 650 For further comments/feedback, poke adrian@ . 651 65220170523: 653 The "ino64" 64-bit inode project has been committed, which extends 654 a number of types to 64 bits. Upgrading in place requires care and 655 adherence to the documented upgrade procedure. 656 657 If using a custom kernel configuration ensure that the 658 COMPAT_FREEBSD11 option is included (as during the upgrade the 659 system will be running the ino64 kernel with the existing world). 660 661 For the safest in-place upgrade begin by removing previous build 662 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 663 full procedure documented below under the heading "To rebuild 664 everything and install it on the current system." Specifically, 665 a reboot is required after installing the new kernel before 666 installing world. 667 66820170424: 669 The NATM framework including the en(4), fatm(4), hatm(4), and 670 patm(4) devices has been removed. Consumers should plan a 671 migration before the end-of-life date for FreeBSD 11. 672 67320170420: 674 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 675 diff has not been implemented, if those are needed a newer version of 676 GNU diff is available via the diffutils package under the gdiff name. 677 67820170413: 679 As of r316810 for ipfilter, keep frags is no longer assumed when 680 keep state is specified in a rule. r316810 aligns ipfilter with 681 documentation in man pages separating keep frags from keep state. 682 This allows keep state to be specified without forcing keep frags 683 and allows keep frags to be specified independently of keep state. 684 To maintain previous behaviour, also specify keep frags with 685 keep state (as documented in ipf.conf.5). 686 68720170407: 688 arm64 builds now use the base system LLD 4.0.0 linker by default, 689 instead of requiring that the aarch64-binutils port or package be 690 installed. To continue using aarch64-binutils, set 691 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 692 69320170405: 694 The UDP optimization in entry 20160818 that added the sysctl 695 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 696 packets will no longer be treated as L3 broadcast packets. 697 69820170331: 699 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 700 use any explicitly assigned loopback address available in the jail 701 instead of using the first assigned address of the jail. 702 70320170329: 704 The ctl.ko module no longer implements the iSCSI target frontend: 705 cfiscsi.ko does instead. 706 707 If building cfiscsi.ko as a kernel module, the module can be loaded 708 via one of the following methods: 709 - `cfiscsi_load="YES"` in loader.conf(5). 710 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 711 - ctladm(8)/ctld(8), when compiled with iSCSI support 712 (`WITH_ISCSI=yes` in src.conf(5)) 713 714 Please see cfiscsi(4) for more details. 715 71620170316: 717 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 718 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 719 same source (previously, the dependency of mmcsd.ko on mmc.ko was 720 missing, but mmcsd.ko now will refuse to load if it is incompatible 721 with mmc.ko). 722 72320170315: 724 The syntax of ipfw(8) named states was changed to avoid ambiguity. 725 If you have used named states in the firewall rules, you need to modify 726 them after installworld and before rebooting. Now named states must 727 be prefixed with colon. 728 72920170311: 730 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 731 removed as the userland we provide cannot use them. The KMS version 732 (sys/dev/drm2) supports the same hardware. 733 73420170302: 735 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 736 Please see the 20141231 entry below for information about prerequisites 737 and upgrading, if you are not already using clang 3.5.0 or higher. 738 73920170221: 740 The code that provides support for ZFS .zfs/ directory functionality 741 has been reimplemented. It's not possible now to create a snapshot 742 by mkdir under .zfs/snapshot/. That should be the only user visible 743 change. 744 74520170216: 746 EISA bus support has been removed. The WITH_EISA option is no longer 747 valid. 748 74920170215: 750 MCA bus support has been removed. 751 75220170127: 753 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 754 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 755 75620170112: 757 The EM_MULTIQUEUE kernel configuration option is deprecated now that 758 the em(4) driver conforms to iflib specifications. 759 76020170109: 761 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 762 IFLIB. If you have a custom kernel configuration that excludes em(4) 763 but you use igb(4), you need to re-add em(4) to your custom configuration. 764 76520161217: 766 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 767 Please see the 20141231 entry below for information about prerequisites 768 and upgrading, if you are not already using clang 3.5.0 or higher. 769 77020161124: 771 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 772 Please see the 20141231 entry below for information about prerequisites 773 and upgrading, if you are not already using clang 3.5.0 or higher. 774 77520161119: 776 The layout of the pmap structure has changed for powerpc to put the pmap 777 statistics at the front for all CPU variations. libkvm(3) and all tools 778 that link against it need to be recompiled. 779 78020161030: 781 isl(4) and cyapa(4) drivers now require a new driver, 782 chromebook_platform(4), to work properly on Chromebook-class hardware. 783 On other types of hardware the drivers may need to be configured using 784 device hints. Please see the corresponding manual pages for details. 785 78620161017: 787 The urtwn(4) driver was merged into rtwn(4) and now consists of 788 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 789 parts. 790 Also, firmware for RTL8188CE was renamed due to possible name 791 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 792 79320161015: 794 GNU rcs has been removed from base. It is available as packages: 795 - rcs: Latest GPLv3 GNU rcs version. 796 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 797 removed from base. 798 79920161008: 800 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 801 modules now requires that the kernel configuration contain the 802 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 803 80420161003: 805 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 806 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 807 80820160924: 809 Relocatable object files with the extension of .So have been renamed 810 to use an extension of .pico instead. The purpose of this change is 811 to avoid a name clash with shared libraries on case-insensitive file 812 systems. On those file systems, foo.So is the same file as foo.so. 813 81420160918: 815 GNU rcs has been turned off by default. It can (temporarily) be built 816 again by adding WITH_RCS knob in src.conf. 817 Otherwise, GNU rcs is available from packages: 818 - rcs: Latest GPLv3 GNU rcs version. 819 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 820 82120160918: 822 The backup_uses_rcs functionality has been removed from rc.subr. 823 82420160908: 825 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 826 two separate components, QUEUE_MACRO_DEBUG_TRACE and 827 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 828 QUEUE_MACRO_DEBUG behavior. 829 83020160824: 831 r304787 changed some ioctl interfaces between the iSCSI userspace 832 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 833 rebuilt to work with new kernels. __FreeBSD_version has been bumped 834 to 1200005. 835 83620160818: 837 The UDP receive code has been updated to only treat incoming UDP 838 packets that were addressed to an L2 broadcast address as L3 839 broadcast packets. It is not expected that this will affect any 840 standards-conforming UDP application. The new behaviour can be 841 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 842 0. 843 84420160818: 845 Remove the openbsd_poll system call. 846 __FreeBSD_version has been bumped because of this. 847 84820160708: 849 The stable/11 branch has been created from head@r302406. 850 85120160622: 852 The libc stub for the pipe(2) system call has been replaced with 853 a wrapper that calls the pipe2(2) system call and the pipe(2) 854 system call is now only implemented by the kernels that include 855 "options COMPAT_FREEBSD10" in their config file (this is the 856 default). Users should ensure that this option is enabled in 857 their kernel or upgrade userspace to r302092 before upgrading their 858 kernel. 859 86020160527: 861 CAM will now strip leading spaces from SCSI disks' serial numbers. 862 This will affect users who create UFS filesystems on SCSI disks using 863 those disk's diskid device nodes. For example, if /etc/fstab 864 previously contained a line like 865 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 866 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 867 transforms like gmirror may also be affected. ZFS users should 868 generally be fine. 869 87020160523: 871 The bitstring(3) API has been updated with new functionality and 872 improved performance. But it is binary-incompatible with the old API. 873 Objects built with the new headers may not be linked against objects 874 built with the old headers. 875 87620160520: 877 The brk and sbrk functions have been removed from libc on arm64. 878 Binutils from ports has been updated to not link to these 879 functions and should be updated to the latest version before 880 installing a new libc. 881 88220160517: 883 The armv6 port now defaults to hard float ABI. Limited support 884 for running both hardfloat and soft float on the same system 885 is available using the libraries installed with -DWITH_LIBSOFT. 886 This has only been tested as an upgrade path for installworld 887 and packages may fail or need manual intervention to run. New 888 packages will be needed. 889 890 To update an existing self-hosted armv6hf system, you must add 891 TARGET_ARCH=armv6 on the make command line for both the build 892 and the install steps. 893 89420160510: 895 Kernel modules compiled outside of a kernel build now default to 896 installing to /boot/modules instead of /boot/kernel. Many kernel 897 modules built this way (such as those in ports) already overrode 898 KMODDIR explicitly to install into /boot/modules. However, 899 manually building and installing a module from /sys/modules will 900 now install to /boot/modules instead of /boot/kernel. 901 90220160414: 903 The CAM I/O scheduler has been committed to the kernel. There should be 904 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 905 list of known rogues that claim support for this but actually corrupt 906 data is believed to be complete, be on the lookout for data 907 corruption. The known rogue list is believed to be complete: 908 909 o Crucial MX100, M550 drives with MU01 firmware. 910 o Micron M510 and M550 drives with MU01 firmware. 911 o Micron M500 prior to MU07 firmware 912 o Samsung 830, 840, and 850 all firmwares 913 o FCCT M500 all firmwares 914 915 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 916 with working NCQ TRIM. For Micron branded drives, see your sales rep for 917 updated firmware. Black listed drives will work correctly because these 918 drives work correctly so long as no NCQ TRIMs are sent to them. Given 919 this list is the same as found in Linux, it's believed there are no 920 other rogues in the market place. All other models from the above 921 vendors work. 922 923 To be safe, if you are at all concerned, you can quirk each of your 924 drives to prevent NCQ from being sent by setting: 925 kern.cam.ada.X.quirks="0x2" 926 in loader.conf. If the drive requires the 4k sector quirk, set the 927 quirks entry to 0x3. 928 92920160330: 930 The FAST_DEPEND build option has been removed and its functionality is 931 now the one true way. The old mkdep(1) style of 'make depend' has 932 been removed. See 20160311 for further details. 933 93420160317: 935 Resource range types have grown from unsigned long to uintmax_t. All 936 drivers, and anything using libdevinfo, need to be recompiled. 937 93820160311: 939 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 940 builds. It no longer runs mkdep(1) during 'make depend', and the 941 'make depend' stage can safely be skipped now as it is auto ran 942 when building 'make all' and will generate all SRCS and DPSRCS before 943 building anything else. Dependencies are gathered at compile time with 944 -MF flags kept in separate .depend files per object file. Users should 945 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 946 stale .depend files. 947 94820160306: 949 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 950 kernel modules. Therefore, if you load any kernel modules at boot time, 951 please install the boot loaders after you install the kernel, but before 952 rebooting, e.g.: 953 954 make buildworld 955 make buildkernel KERNCONF=YOUR_KERNEL_HERE 956 make installkernel KERNCONF=YOUR_KERNEL_HERE 957 make -C sys/boot install 958 <reboot in single user> 959 960 Then follow the usual steps, described in the General Notes section, 961 below. 962 96320160305: 964 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 965 see the 20141231 entry below for information about prerequisites and 966 upgrading, if you are not already using clang 3.5.0 or higher. 967 96820160301: 969 The AIO subsystem is now a standard part of the kernel. The 970 VFS_AIO kernel option and aio.ko kernel module have been removed. 971 Due to stability concerns, asynchronous I/O requests are only 972 permitted on sockets and raw disks by default. To enable 973 asynchronous I/O requests on all file types, set the 974 vfs.aio.enable_unsafe sysctl to a non-zero value. 975 97620160226: 977 The ELF object manipulation tool objcopy is now provided by the 978 ELF Tool Chain project rather than by GNU binutils. It should be a 979 drop-in replacement, with the addition of arm64 support. The 980 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 981 to obtain the GNU version if necessary. 982 98320160129: 984 Building ZFS pools on top of zvols is prohibited by default. That 985 feature has never worked safely; it's always been prone to deadlocks. 986 Using a zvol as the backing store for a VM guest's virtual disk will 987 still work, even if the guest is using ZFS. Legacy behavior can be 988 restored by setting vfs.zfs.vol.recursive=1. 989 99020160119: 991 The NONE and HPN patches has been removed from OpenSSH. They are 992 still available in the security/openssh-portable port. 993 99420160113: 995 With the addition of ypldap(8), a new _ypldap user is now required 996 during installworld. "mergemaster -p" can be used to add the user 997 prior to installworld, as documented in the handbook. 998 99920151216: 1000 The tftp loader (pxeboot) now uses the option root-path directive. As a 1001 consequence it no longer looks for a pxeboot.4th file on the tftp 1002 server. Instead it uses the regular /boot infrastructure as with the 1003 other loaders. 1004 100520151211: 1006 The code to start recording plug and play data into the modules has 1007 been committed. While the old tools will properly build a new kernel, 1008 a number of warnings about "unknown metadata record 4" will be produced 1009 for an older kldxref. To avoid such warnings, make sure to rebuild 1010 the kernel toolchain (or world). Make sure that you have r292078 or 1011 later when trying to build 292077 or later before rebuilding. 1012 101320151207: 1014 Debug data files are now built by default with 'make buildworld' and 1015 installed with 'make installworld'. This facilitates debugging but 1016 requires more disk space both during the build and for the installed 1017 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 1018 in src.conf(5). 1019 102020151130: 1021 r291527 changed the internal interface between the nfsd.ko and 1022 nfscommon.ko modules. As such, they must both be upgraded to-gether. 1023 __FreeBSD_version has been bumped because of this. 1024 102520151108: 1026 Add support for unicode collation strings leads to a change of 1027 order of files listed by ls(1) for example. To get back to the old 1028 behaviour, set LC_COLLATE environment variable to "C". 1029 1030 Databases administrators will need to reindex their databases given 1031 collation results will be different. 1032 1033 Due to a bug in install(1) it is recommended to remove the ancient 1034 locales before running make installworld. 1035 1036 rm -rf /usr/share/locale/* 1037 103820151030: 1039 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 1040 libcrypto.so.7 or libssl.so.7 must be recompiled. 1041 104220151020: 1043 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 1044 Kernel modules isp_2400_multi and isp_2500_multi were removed and 1045 should be replaced with isp_2400 and isp_2500 modules respectively. 1046 104720151017: 1048 The build previously allowed using 'make -n' to not recurse into 1049 sub-directories while showing what commands would be executed, and 1050 'make -n -n' to recursively show commands. Now 'make -n' will recurse 1051 and 'make -N' will not. 1052 105320151012: 1054 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 1055 and etcupdate will now use this file. A custom sendmail.cf is now 1056 updated via this mechanism rather than via installworld. If you had 1057 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 1058 want to remove the exclusion or change it to "always install". 1059 /etc/mail/sendmail.cf is now managed the same way regardless of 1060 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 1061 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 1062 106320151011: 1064 Compatibility shims for legacy ATA device names have been removed. 1065 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 1066 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 1067 environment variables, /dev/ad* and /dev/ar* symbolic links. 1068 106920151006: 1070 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 1071 Please see the 20141231 entry below for information about prerequisites 1072 and upgrading, if you are not already using clang 3.5.0 or higher. 1073 107420150924: 1075 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 1076 and renamed from .symbols to .debug. This reduces the size requirements 1077 on the boot partition or file system and provides consistency with 1078 userland debug files. 1079 1080 When using the supported kernel installation method the 1081 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 1082 as is done with /boot/kernel. 1083 1084 Developers wishing to maintain the historical behavior of installing 1085 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 1086 108720150827: 1088 The wireless drivers had undergone changes that remove the 'parent 1089 interface' from the ifconfig -l output. The rc.d network scripts 1090 used to check presence of a parent interface in the list, so old 1091 scripts would fail to start wireless networking. Thus, etcupdate(3) 1092 or mergemaster(8) run is required after kernel update, to update your 1093 rc.d scripts in /etc. 1094 109520150827: 1096 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 1097 These configurations are now automatically interpreted as 1098 'scrub fragment reassemble'. 1099 110020150817: 1101 Kernel-loadable modules for the random(4) device are back. To use 1102 them, the kernel must have 1103 1104 device random 1105 options RANDOM_LOADABLE 1106 1107 kldload(8) can then be used to load random_fortuna.ko 1108 or random_yarrow.ko. Please note that due to the indirect 1109 function calls that the loadable modules need to provide, 1110 the build-in variants will be slightly more efficient. 1111 1112 The random(4) kernel option RANDOM_DUMMY has been retired due to 1113 unpopularity. It was not all that useful anyway. 1114 111520150813: 1116 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 1117 Control over building the ELF Tool Chain tools is now provided by 1118 the WITHOUT_TOOLCHAIN knob. 1119 112020150810: 1121 The polarity of Pulse Per Second (PPS) capture events with the 1122 uart(4) driver has been corrected. Prior to this change the PPS 1123 "assert" event corresponded to the trailing edge of a positive PPS 1124 pulse and the "clear" event was the leading edge of the next pulse. 1125 1126 As the width of a PPS pulse in a typical GPS receiver is on the 1127 order of 1 millisecond, most users will not notice any significant 1128 difference with this change. 1129 1130 Anyone who has compensated for the historical polarity reversal by 1131 configuring a negative offset equal to the pulse width will need to 1132 remove that workaround. 1133 113420150809: 1135 The default group assigned to /dev/dri entries has been changed 1136 from 'wheel' to 'video' with the id of '44'. If you want to have 1137 access to the dri devices please add yourself to the video group 1138 with: 1139 1140 # pw groupmod video -m $USER 1141 114220150806: 1143 The menu.rc and loader.rc files will now be replaced during 1144 upgrades. Please migrate local changes to menu.rc.local and 1145 loader.rc.local instead. 1146 114720150805: 1148 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 1149 strings and strip have been removed. The src.conf(5) knob 1150 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 1151 115220150728: 1153 As ZFS requires more kernel stack pages than is the default on some 1154 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 1155 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 1156 1157 Please consider using 'options KSTACK_PAGES=X' where X is greater 1158 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 1159 116020150706: 1161 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 1162 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 1163 default, i.e., they will not contain "::". For example, instead 1164 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 1165 to have a more specific match, such as different map entries for 1166 IPv6:0:0 vs IPv6:0. This change requires that configuration 1167 data (including maps, files, classes, custom ruleset, etc.) must 1168 use the same format, so make certain such configuration data is 1169 upgrading. As a very simple check search for patterns like 1170 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 1171 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 1172 the cf option UseCompressedIPv6Addresses. 1173 117420150630: 1175 The default kernel entropy-processing algorithm is now 1176 Fortuna, replacing Yarrow. 1177 1178 Assuming you have 'device random' in your kernel config 1179 file, the configurations allow a kernel option to override 1180 this default. You may choose *ONE* of: 1181 1182 options RANDOM_YARROW # Legacy /dev/random algorithm. 1183 options RANDOM_DUMMY # Blocking-only driver. 1184 1185 If you have neither, you get Fortuna. For most people, 1186 read no further, Fortuna will give a /dev/random that works 1187 like it always used to, and the difference will be irrelevant. 1188 1189 If you remove 'device random', you get *NO* kernel-processed 1190 entropy at all. This may be acceptable to folks building 1191 embedded systems, but has complications. Carry on reading, 1192 and it is assumed you know what you need. 1193 1194 *PLEASE* read random(4) and random(9) if you are in the 1195 habit of tweaking kernel configs, and/or if you are a member 1196 of the embedded community, wanting specific and not-usual 1197 behaviour from your security subsystems. 1198 1199 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 1200 random', you will NOT have a functioning /dev/random, and 1201 many cryptographic features will not work, including SSH. 1202 You may also find strange behaviour from the random(3) set 1203 of library functions, in particular sranddev(3), srandomdev(3) 1204 and arc4random(3). The reason for this is that the KERN_ARND 1205 sysctl only returns entropy if it thinks it has some to 1206 share, and with RANDOM_DUMMY or no 'device random' this 1207 will never happen. 1208 120920150623: 1210 An additional fix for the issue described in the 20150614 sendmail 1211 entry below has been committed in revision 284717. 1212 121320150616: 1214 FreeBSD's old make (fmake) has been removed from the system. It is 1215 available as the devel/fmake port or via pkg install fmake. 1216 121720150615: 1218 The fix for the issue described in the 20150614 sendmail entry 1219 below has been committed in revision 284436. The work 1220 around described in that entry is no longer needed unless the 1221 default setting is overridden by a confDH_PARAMETERS configuration 1222 setting of '5' or pointing to a 512 bit DH parameter file. 1223 122420150614: 1225 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 1226 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 1227 and devel/kyua to version 0.20+ and adjust any calling code to work 1228 with Kyuafile and kyua. 1229 123020150614: 1231 The import of openssl to address the FreeBSD-SA-15:10.openssl 1232 security advisory includes a change which rejects handshakes 1233 with DH parameters below 768 bits. sendmail releases prior 1234 to 8.15.2 (not yet released), defaulted to a 512 bit 1235 DH parameter setting for client connections. To work around 1236 this interoperability, sendmail can be configured to use a 1237 2048 bit DH parameter by: 1238 1239 1. Edit /etc/mail/`hostname`.mc 1240 2. If a setting for confDH_PARAMETERS does not exist or 1241 exists and is set to a string beginning with '5', 1242 replace it with '2'. 1243 3. If a setting for confDH_PARAMETERS exists and is set to 1244 a file path, create a new file with: 1245 openssl dhparam -out /path/to/file 2048 1246 4. Rebuild the .cf file: 1247 cd /etc/mail/; make; make install 1248 5. Restart sendmail: 1249 cd /etc/mail/; make restart 1250 1251 A sendmail patch is coming, at which time this file will be 1252 updated. 1253 125420150604: 1255 Generation of legacy formatted entries have been disabled by default 1256 in pwd_mkdb(8), as all base system consumers of the legacy formatted 1257 entries were converted to use the new format by default when the new, 1258 machine independent format have been added and supported since FreeBSD 1259 5.x. 1260 1261 Please see the pwd_mkdb(8) manual page for further details. 1262 126320150525: 1264 Clang and llvm have been upgraded to 3.6.1 release. Please see the 1265 20141231 entry below for information about prerequisites and upgrading, 1266 if you are not already using 3.5.0 or higher. 1267 126820150521: 1269 TI platform code switched to using vendor DTS files and this update 1270 may break existing systems running on Beaglebone, Beaglebone Black, 1271 and Pandaboard: 1272 1273 - dtb files should be regenerated/reinstalled. Filenames are the 1274 same but content is different now 1275 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 1276 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 1277 addressing scheme is now pin 25 on /dev/gpioc3. 1278 - Pandaboard: /etc/ttys should be updated, serial console device is 1279 now /dev/ttyu2, not /dev/ttyu0 1280 128120150501: 1282 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 1283 If you need the GNU extension from groff soelim(1), install groff 1284 from package: pkg install groff, or via ports: textproc/groff. 1285 128620150423: 1287 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 1288 defined in symlink(7); previously symlinks were silently ignored. 1289 129020150415: 1291 The const qualifier has been removed from iconv(3) to comply with 1292 POSIX. The ports tree is aware of this from r384038 onwards. 1293 129420150416: 1295 Libraries specified by LIBADD in Makefiles must have a corresponding 1296 DPADD_<lib> variable to ensure correct dependencies. This is now 1297 enforced in src.libnames.mk. 1298 129920150324: 1300 From legacy ata(4) driver was removed support for SATA controllers 1301 supported by more functional drivers ahci(4), siis(4) and mvs(4). 1302 Kernel modules ataahci and ataadaptec were removed completely, 1303 replaced by ahci and mvs modules respectively. 1304 130520150315: 1306 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 1307 the 20141231 entry below for information about prerequisites and 1308 upgrading, if you are not already using 3.5.0 or higher. 1309 131020150307: 1311 The 32-bit PowerPC kernel has been changed to a position-independent 1312 executable. This can only be booted with a version of loader(8) 1313 newer than January 31, 2015, so make sure to update both world and 1314 kernel before rebooting. 1315 131620150217: 1317 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 1318 but before r278950, the RNG was not seeded properly. Immediately 1319 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 1320 ssh keys or openssl keys) that were generated w/ a kernel from that 1321 range. This does not affect programs that directly used /dev/random 1322 or /dev/urandom. All userland uses of arc4random(3) are affected. 1323 132420150210: 1325 The autofs(4) ABI was changed in order to restore binary compatibility 1326 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 1327 with the new kernel. 1328 132920150131: 1330 The powerpc64 kernel has been changed to a position-independent 1331 executable. This can only be booted with a new version of loader(8), 1332 so make sure to update both world and kernel before rebooting. 1333 133420150118: 1335 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 1336 only release, no new features have been added. Please see the 20141231 1337 entry below for information about prerequisites and upgrading, if you 1338 are not already using 3.5.0. 1339 134020150107: 1341 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 1342 taken from the ELF Tool Chain project rather than GNU binutils. They 1343 should be drop-in replacements, with the addition of arm64 support. 1344 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 1345 binutils tools, if necessary. See 20150805 for updated information. 1346 134720150105: 1348 The default Unbound configuration now enables remote control 1349 using a local socket. Users who have already enabled the 1350 local_unbound service should regenerate their configuration 1351 by running "service local_unbound setup" as root. 1352 135320150102: 1354 The GNU texinfo and GNU info pages have been removed. 1355 To be able to view GNU info pages please install texinfo from ports. 1356 135720141231: 1358 Clang, llvm and lldb have been upgraded to 3.5.0 release. 1359 1360 As of this release, a prerequisite for building clang, llvm and lldb is 1361 a C++11 capable compiler and C++11 standard library. This means that to 1362 be able to successfully build the cross-tools stage of buildworld, with 1363 clang as the bootstrap compiler, your system compiler or cross compiler 1364 should either be clang 3.3 or later, or gcc 4.8 or later, and your 1365 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 1366 later. 1367 1368 On any standard FreeBSD 10.x or 11.x installation, where clang and 1369 libc++ are on by default (that is, on x86 or arm), this should work out 1370 of the box. 1371 1372 On 9.x installations where clang is enabled by default, e.g. on x86 and 1373 powerpc, libc++ will not be enabled by default, so libc++ should be 1374 built (with clang) and installed first. If both clang and libc++ are 1375 missing, build clang first, then use it to build libc++. 1376 1377 On 8.x and earlier installations, upgrade to 9.x first, and then follow 1378 the instructions for 9.x above. 1379 1380 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 1381 default, and do not build clang. 1382 1383 Many embedded systems are resource constrained, and will not be able to 1384 build clang in a reasonable time, or in some cases at all. In those 1385 cases, cross building bootable systems on amd64 is a workaround. 1386 1387 This new version of clang introduces a number of new warnings, of which 1388 the following are most likely to appear: 1389 1390 -Wabsolute-value 1391 1392 This warns in two cases, for both C and C++: 1393 * When the code is trying to take the absolute value of an unsigned 1394 quantity, which is effectively a no-op, and almost never what was 1395 intended. The code should be fixed, if at all possible. If you are 1396 sure that the unsigned quantity can be safely cast to signed, without 1397 loss of information or undefined behavior, you can add an explicit 1398 cast, or disable the warning. 1399 1400 * When the code is trying to take an absolute value, but the called 1401 abs() variant is for the wrong type, which can lead to truncation. 1402 If you want to disable the warning instead of fixing the code, please 1403 make sure that truncation will not occur, or it might lead to unwanted 1404 side-effects. 1405 1406 -Wtautological-undefined-compare and 1407 -Wundefined-bool-conversion 1408 1409 These warn when C++ code is trying to compare 'this' against NULL, while 1410 'this' should never be NULL in well-defined C++ code. However, there is 1411 some legacy (pre C++11) code out there, which actively abuses this 1412 feature, which was less strictly defined in previous C++ versions. 1413 1414 Squid and openjdk do this, for example. The warning can be turned off 1415 for C++98 and earlier, but compiling the code in C++11 mode might result 1416 in unexpected behavior; for example, the parts of the program that are 1417 unreachable could be optimized away. 1418 141920141222: 1420 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 1421 kernel sources have been removed. The .h files remain, since some 1422 utilities include them. This will need to be fixed later. 1423 If "mount -t oldnfs ..." is attempted, it will fail. 1424 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 1425 the utilities will report errors. 1426 142720141121: 1428 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 1429 directories to top level SUBDIR variable when their parent 1430 directory is included in LOCAL_DIRS. Users with build systems with 1431 such hierarchies and without SUBDIR entries in the parent 1432 directory Makefiles should add them or add the directories to 1433 LOCAL_DIRS. 1434 143520141109: 1436 faith(4) and faithd(8) have been removed from the base system. Faith 1437 has been obsolete for a very long time. 1438 143920141104: 1440 vt(4), the new console driver, is enabled by default. It brings 1441 support for Unicode and double-width characters, as well as 1442 support for UEFI and integration with the KMS kernel video 1443 drivers. 1444 1445 You may need to update your console settings in /etc/rc.conf, 1446 most probably the keymap. During boot, /etc/rc.d/syscons will 1447 indicate what you need to do. 1448 1449 vt(4) still has issues and lacks some features compared to 1450 syscons(4). See the wiki for up-to-date information: 1451 https://wiki.freebsd.org/Newcons 1452 1453 If you want to keep using syscons(4), you can do so by adding 1454 the following line to /boot/loader.conf: 1455 kern.vty=sc 1456 145720141102: 1458 pjdfstest has been integrated into kyua as an opt-in test suite. 1459 Please see share/doc/pjdfstest/README for more details on how to 1460 execute it. 1461 146220141009: 1463 gperf has been removed from the base system for architectures 1464 that use clang. Ports that require gperf will obtain it from the 1465 devel/gperf port. 1466 146720140923: 1468 pjdfstest has been moved from tools/regression/pjdfstest to 1469 contrib/pjdfstest . 1470 147120140922: 1472 At svn r271982, The default linux compat kernel ABI has been adjusted 1473 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1474 update. If you wish to continue using the linux-f10 compat ports, 1475 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1476 encouraged to update their linux-compat packages to linux-c6 during 1477 their next update cycle. 1478 147920140729: 1480 The ofwfb driver, used to provide a graphics console on PowerPC when 1481 using vt(4), no longer allows mmap() of all physical memory. This 1482 will prevent Xorg on PowerPC with some ATI graphics cards from 1483 initializing properly unless x11-servers/xorg-server is updated to 1484 1.12.4_8 or newer. 1485 148620140723: 1487 The xdev targets have been converted to using TARGET and 1488 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1489 149020140719: 1491 The default unbound configuration has been modified to address 1492 issues with reverse lookups on networks that use private 1493 address ranges. If you use the local_unbound service, run 1494 "service local_unbound setup" as root to regenerate your 1495 configuration, then "service local_unbound reload" to load the 1496 new configuration. 1497 149820140709: 1499 The GNU texinfo and GNU info pages are not built and installed 1500 anymore, WITH_INFO knob has been added to allow to built and install 1501 them again. 1502 UPDATE: see 20150102 entry on texinfo's removal 1503 150420140708: 1505 The GNU readline library is now an INTERNALLIB - that is, it is 1506 statically linked into consumers (GDB and variants) in the base 1507 system, and the shared library is no longer installed. The 1508 devel/readline port is available for third party software that 1509 requires readline. 1510 151120140702: 1512 The Itanium architecture (ia64) has been removed from the list of 1513 known architectures. This is the first step in the removal of the 1514 architecture. 1515 151620140701: 1517 Commit r268115 has added NFSv4.1 server support, merged from 1518 projects/nfsv4.1-server. Since this includes changes to the 1519 internal interfaces between the NFS related modules, a full 1520 build of the kernel and modules will be necessary. 1521 __FreeBSD_version has been bumped. 1522 152320140629: 1524 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1525 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1526 which differs from the behaviour controlled by this knob.) 1527 152820140619: 1529 Maximal length of the serial number in CTL was increased from 16 to 1530 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1531 and ctld, need to be rebuilt to work with a new kernel. 1532 153320140606: 1534 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1535 1 respectively to match the upstream numbers. They were out of 1536 sync because, when they were originally added to FreeBSD, the 1537 upstream versions were not respected. These libraries are private 1538 and not yet built by default, so renumbering them should be a 1539 non-issue. However, unclean source trees will yield broken test 1540 programs once the operator executes "make delete-old-libs" after a 1541 "make installworld". 1542 1543 Additionally, the atf-sh binary was made private by moving it into 1544 /usr/libexec/. Already-built shell test programs will keep the 1545 path to the old binary so they will break after "make delete-old" 1546 is run. 1547 1548 If you are using WITH_TESTS=yes (not the default), wipe the object 1549 tree and rebuild from scratch to prevent spurious test failures. 1550 This is only needed once: the misnumbered libraries and misplaced 1551 binaries have been added to OptionalObsoleteFiles.inc so they will 1552 be removed during a clean upgrade. 1553 155420140512: 1555 Clang and llvm have been upgraded to 3.4.1 release. 1556 155720140508: 1558 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1559 be removed to avoid issues in the future (and has been added to 1560 ObsoleteFiles.inc). 1561 156220140505: 1563 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1564 past, it affected all builds that used the bsd.*.mk files. The old 1565 behavior was a bug, but people may have relied upon it. To get this 1566 behavior back, you can .include /etc/src.conf from /etc/make.conf 1567 (which is still global and isn't changed). This also changes the 1568 behavior of incremental builds inside the tree of individual 1569 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1570 Although this has survived make universe and some upgrade scenarios, 1571 other upgrade scenarios may have broken. At least one form of 1572 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1573 as well... In cases where MAKESYSPATH isn't working with this 1574 setting, you'll need to set it to the full path to your tree. 1575 1576 One side effect of all this cleaning up is that bsd.compiler.mk 1577 is no longer implicitly included by bsd.own.mk. If you wish to 1578 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1579 as well. 1580 158120140430: 1582 The lindev device has been removed since /dev/full has been made a 1583 standard device. __FreeBSD_version has been bumped. 1584 158520140424: 1586 The knob WITHOUT_VI was added to the base system, which controls 1587 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1588 in order to reorder files share/termcap and didn't build ex(1) as a 1589 build tool, so building/installing with WITH_VI is highly advised for 1590 build hosts for older releases. 1591 1592 This issue has been fixed in stable/9 and stable/10 in r277022 and 1593 r276991, respectively. 1594 159520140418: 1596 The YES_HESIOD knob has been removed. It has been obsolete for 1597 a decade. Please move to using WITH_HESIOD instead or your builds 1598 will silently lack HESIOD. 1599 160020140405: 1601 The uart(4) driver has been changed with respect to its handling 1602 of the low-level console. Previously the uart(4) driver prevented 1603 any process from changing the baudrate or the CLOCAL and HUPCL 1604 control flags. By removing the restrictions, operators can make 1605 changes to the serial console port without having to reboot. 1606 However, when getty(8) is started on the serial device that is 1607 associated with the low-level console, a misconfigured terminal 1608 line in /etc/ttys will now have a real impact. 1609 Before upgrading the kernel, make sure that /etc/ttys has the 1610 serial console device configured as 3wire without baudrate to 1611 preserve the previous behaviour. E.g: 1612 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1613 161420140306: 1615 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1616 to improve performance. To re-enable it, if needed, run rpcbind 1617 with command line option -W. 1618 161920140226: 1620 Switched back to the GPL dtc compiler due to updates in the upstream 1621 dts files not being supported by the BSDL dtc compiler. You will need 1622 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1623 may result while building dtb files during a kernel build if you fail 1624 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1625 162620140216: 1627 Clang and llvm have been upgraded to 3.4 release. 1628 162920140216: 1630 The nve(4) driver has been removed. Please use the nfe(4) driver 1631 for NVIDIA nForce MCP Ethernet adapters instead. 1632 163320140212: 1634 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1635 This could cause certain C++ applications using shared libraries built 1636 against the previous version of libc++ to crash. The incompatibility 1637 has now been fixed, but any C++ applications or shared libraries built 1638 between r261283 and r261801 should be recompiled. 1639 164020140204: 1641 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1642 capability mode support. Please note that enabling the feature in 1643 kernel is still highly recommended. 1644 164520140131: 1646 OpenSSH is now built with sandbox support, and will use sandbox as 1647 the default privilege separation method. This requires Capsicum 1648 capability mode support in kernel. 1649 165020140128: 1651 The libelf and libdwarf libraries have been updated to newer 1652 versions from upstream. Shared library version numbers for 1653 these two libraries were bumped. Any ports or binaries 1654 requiring these two libraries should be recompiled. 1655 __FreeBSD_version is bumped to 1100006. 1656 165720140110: 1658 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1659 instead of providing an explicit one, this would prevent such 1660 Makefile from providing its own Kyuafile in the future during 1661 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1662 intervention is needed to clean an objdir if you use NO_CLEAN: 1663 # find /usr/obj -name Kyuafile | xargs rm -f 1664 166520131213: 1666 The behavior of gss_pseudo_random() for the krb5 mechanism 1667 has changed, for applications requesting a longer random string 1668 than produced by the underlying enctype's pseudo-random() function. 1669 In particular, the random string produced from a session key of 1670 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1671 be different at the 17th octet and later, after this change. 1672 The counter used in the PRF+ construction is now encoded as a 1673 big-endian integer in accordance with RFC 4402. 1674 __FreeBSD_version is bumped to 1100004. 1675 167620131108: 1677 The WITHOUT_ATF build knob has been removed and its functionality 1678 has been subsumed into the more generic WITHOUT_TESTS. If you were 1679 using the former to disable the build of the ATF libraries, you 1680 should change your settings to use the latter. 1681 168220131025: 1683 The default version of mtree is nmtree which is obtained from 1684 NetBSD. The output is generally the same, but may vary 1685 slightly. If you found you need identical output adding 1686 "-F freebsd9" to the command line should do the trick. For the 1687 time being, the old mtree is available as fmtree. 1688 168920131014: 1690 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1691 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1692 1.1.4_8 and verify bsdyml not linked in, before running "make 1693 delete-old-libs": 1694 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1695 or 1696 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1697 169820131010: 1699 The stable/10 branch has been created in subversion from head 1700 revision r256279. 1701 1702COMMON ITEMS: 1703 1704 General Notes 1705 ------------- 1706 Avoid using make -j when upgrading. While generally safe, there are 1707 sometimes problems using -j to upgrade. If your upgrade fails with 1708 -j, please try again without -j. From time to time in the past there 1709 have been problems using -j with buildworld and/or installworld. This 1710 is especially true when upgrading between "distant" versions (eg one 1711 that cross a major release boundary or several minor releases, or when 1712 several months have passed on the -current branch). 1713 1714 Sometimes, obscure build problems are the result of environment 1715 poisoning. This can happen because the make utility reads its 1716 environment when searching for values for global variables. To run 1717 your build attempts in an "environmental clean room", prefix all make 1718 commands with 'env -i '. See the env(1) manual page for more details. 1719 1720 When upgrading from one major version to another it is generally best to 1721 upgrade to the latest code in the currently installed branch first, then 1722 do an upgrade to the new branch. This is the best-tested upgrade path, 1723 and has the highest probability of being successful. Please try this 1724 approach if you encounter problems with a major version upgrade. Since 1725 the stable 4.x branch point, one has generally been able to upgrade from 1726 anywhere in the most recent stable branch to head / current (or even the 1727 last couple of stable branches). See the top of this file when there's 1728 an exception. 1729 1730 When upgrading a live system, having a root shell around before 1731 installing anything can help undo problems. Not having a root shell 1732 around can lead to problems if pam has changed too much from your 1733 starting point to allow continued authentication after the upgrade. 1734 1735 This file should be read as a log of events. When a later event changes 1736 information of a prior event, the prior event should not be deleted. 1737 Instead, a pointer to the entry with the new information should be 1738 placed in the old entry. Readers of this file should also sanity check 1739 older entries before relying on them blindly. Authors of new entries 1740 should write them with this in mind. 1741 1742 ZFS notes 1743 --------- 1744 When upgrading the boot ZFS pool to a new version, always follow 1745 these two steps: 1746 1747 1.) recompile and reinstall the ZFS boot loader and boot block 1748 (this is part of "make buildworld" and "make installworld") 1749 1750 2.) update the ZFS boot block on your boot drive 1751 1752 The following example updates the ZFS boot block on the first 1753 partition (freebsd-boot) of a GPT partitioned drive ada0: 1754 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1755 1756 Non-boot pools do not need these updates. 1757 1758 To build a kernel 1759 ----------------- 1760 If you are updating from a prior version of FreeBSD (even one just 1761 a few days old), you should follow this procedure. It is the most 1762 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1763 1764 make kernel-toolchain 1765 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1766 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1767 1768 To test a kernel once 1769 --------------------- 1770 If you just want to boot a kernel once (because you are not sure 1771 if it works, or if you want to boot a known bad kernel to provide 1772 debugging information) run 1773 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1774 nextboot -k testkernel 1775 1776 To rebuild everything and install it on the current system. 1777 ----------------------------------------------------------- 1778 # Note: sometimes if you are running current you gotta do more than 1779 # is listed here if you are upgrading from a really old current. 1780 1781 <make sure you have good level 0 dumps> 1782 make buildworld 1783 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1784 make installkernel KERNCONF=YOUR_KERNEL_HERE 1785 [1] 1786 <reboot in single user> [3] 1787 mergemaster -Fp [5] 1788 make installworld 1789 mergemaster -Fi [4] 1790 make delete-old [6] 1791 <reboot> 1792 1793 To cross-install current onto a separate partition 1794 -------------------------------------------------- 1795 # In this approach we use a separate partition to hold 1796 # current's root, 'usr', and 'var' directories. A partition 1797 # holding "/", "/usr" and "/var" should be about 2GB in 1798 # size. 1799 1800 <make sure you have good level 0 dumps> 1801 <boot into -stable> 1802 make buildworld 1803 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1804 <maybe newfs current's root partition> 1805 <mount current's root partition on directory ${CURRENT_ROOT}> 1806 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1807 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1808 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1809 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1810 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1811 <reboot into current> 1812 <do a "native" rebuild/install as described in the previous section> 1813 <maybe install compatibility libraries from ports/misc/compat*> 1814 <reboot> 1815 1816 1817 To upgrade in-place from stable to current 1818 ---------------------------------------------- 1819 <make sure you have good level 0 dumps> 1820 make buildworld [9] 1821 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8] 1822 make installkernel KERNCONF=YOUR_KERNEL_HERE 1823 [1] 1824 <reboot in single user> [3] 1825 mergemaster -Fp [5] 1826 make installworld 1827 mergemaster -Fi [4] 1828 make delete-old [6] 1829 <reboot> 1830 1831 Make sure that you've read the UPDATING file to understand the 1832 tweaks to various things you need. At this point in the life 1833 cycle of current, things change often and you are on your own 1834 to cope. The defaults can also change, so please read ALL of 1835 the UPDATING entries. 1836 1837 Also, if you are tracking -current, you must be subscribed to 1838 freebsd-current@freebsd.org. Make sure that before you update 1839 your sources that you have read and understood all the recent 1840 messages there. If in doubt, please track -stable which has 1841 much fewer pitfalls. 1842 1843 [1] If you have third party modules, such as vmware, you 1844 should disable them at this point so they don't crash your 1845 system on reboot. 1846 1847 [3] From the bootblocks, boot -s, and then do 1848 fsck -p 1849 mount -u / 1850 mount -a 1851 cd src 1852 adjkerntz -i # if CMOS is wall time 1853 Also, when doing a major release upgrade, it is required that 1854 you boot into single user mode to do the installworld. 1855 1856 [4] Note: This step is non-optional. Failure to do this step 1857 can result in a significant reduction in the functionality of the 1858 system. Attempting to do it by hand is not recommended and those 1859 that pursue this avenue should read this file carefully, as well 1860 as the archives of freebsd-current and freebsd-hackers mailing lists 1861 for potential gotchas. The -U option is also useful to consider. 1862 See mergemaster(8) for more information. 1863 1864 [5] Usually this step is a no-op. However, from time to time 1865 you may need to do this if you get unknown user in the following 1866 step. It never hurts to do it all the time. You may need to 1867 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1868 install) after the buildworld before this step if you last updated 1869 from current before 20130425 or from -stable before 20130430. 1870 1871 [6] This only deletes old files and directories. Old libraries 1872 can be deleted by "make delete-old-libs", but you have to make 1873 sure that no program is using those libraries anymore. 1874 1875 [8] In order to have a kernel that can run the 4.x binaries needed to 1876 do an installworld, you must include the COMPAT_FREEBSD4 option in 1877 your kernel. Failure to do so may leave you with a system that is 1878 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1879 required to run the 5.x binaries on more recent kernels. And so on 1880 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1881 1882 Make sure that you merge any new devices from GENERIC since the 1883 last time you updated your kernel config file. 1884 1885 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1886 "?=" instead of the "=" assignment operator, so that buildworld can 1887 override the CPUTYPE if it needs to. 1888 1889 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1890 not on the command line, or in /etc/make.conf. buildworld will 1891 warn if it is improperly defined. 1892FORMAT: 1893 1894This file contains a list, in reverse chronological order, of major 1895breakages in tracking -current. It is not guaranteed to be a complete 1896list of such breakages, and only contains entries since September 23, 2011. 1897If you need to see UPDATING entries from before that date, you will need 1898to fetch an UPDATING file from an older FreeBSD release. 1899 1900Copyright information: 1901 1902Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1903 1904Redistribution, publication, translation and use, with or without 1905modification, in full or in part, in any form or format of this 1906document are permitted without further permission from the author. 1907 1908THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1909IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1910WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1911DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1912INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1913(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1914SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1915HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1916STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1917IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1918POSSIBILITY OF SUCH DAMAGE. 1919 1920Contact Warner Losh if you have any questions about your use of 1921this document. 1922 1923$FreeBSD$ 1924