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/updating-src.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 5420170808: 55 Since the switch to GPT disk labels, fsck for UFS/FFS has been 56 unable to automatically find alternate superblocks. As of r322297, 57 the information needed to find alternate superblocks has been 58 moved to the end of the area reserved for the boot block. 59 Filesystems created with a newfs of this vintage or later 60 will create the recovery information. If you have a filesystem 61 created prior to this change and wish to have a recovery block 62 created for your filesystem, you can do so by running fsck in 63 forground mode (i.e., do not use the -p or -y options). As it 64 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 65 to which you should answer yes. 66 6720170728: 68 As of r321665, an NFSv4 server configuration that services 69 Kerberos mounts or clients that do not support the uid/gid in 70 owner/owner_group string capability, must explicitly enable 71 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 72 machine's /etc/rc.conf file. 73 7420170722: 75 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 76 Please see the 20141231 entry below for information about prerequisites 77 and upgrading, if you are not already using clang 3.5.0 or higher. 78 7920170701: 80 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 81 r-commands (rlogin, rsh, etc.) to be built with the base system. 82 8320170625: 84 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 85 a very major ABI incompatible change, so users of FreeBSD/powerpc must 86 be careful when performing source upgrades. It is best to run 87 'make installworld' from an alternate root system, either a live 88 CD/memory stick, or a temporary root partition. Additionally, all ports 89 must be recompiled. powerpc64 is largely unaffected, except in the case 90 of 32-bit compatibility. All 32-bit binaries will be affected. 91 9220170623: 93 Forward compatibility for the "ino64" project have been committed. This 94 will allow most new binaries to run on older kernels in a limited 95 fashion. This prevents many of the common foot-shooting actions in the 96 upgrade as well as the limited ability to roll back the kernel across 97 the ino64 upgrade. Complicated use cases may not work properly, though 98 enough simpler ones work to allow recovery in most situations. 99 10020170620: 101 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 102 if you require the GPL compiler. 103 10420170618: 105 The internal ABI used for communication between the NFS kernel modules 106 was changed by r320085, so __FreeBSD_version was bumped to 107 ensure all the NFS related modules are updated together. 108 10920170617: 110 The ABI of struct event was changed by extending the data 111 member to 64bit and adding ext fields. For upgrade, same 112 precautions as for the entry 20170523 "ino64" must be 113 followed. 114 11520170531: 116 The GNU roff toolchain has been removed from base. To render manpages 117 which are not supported by mandoc(1), man(1) can fallback on GNU roff 118 from ports (and recommends to install it). 119 To render roff(7) documents, consider using GNU roff from ports or the 120 heirloom doctools roff toolchain from ports via pkg install groff or 121 via pkg install heirloom-doctools. 122 12320170524: 124 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 125 smaller runtime footprint builds. This is useful for embedded systems 126 which only require one chipset support. 127 128 If you load it as a module, make sure this is in /boot/loader.conf: 129 130 if_ath_load="YES" 131 132 This will load the HAL, all chip/RF backends and if_ath_pci. 133 If you have if_ath_pci in /boot/loader.conf, ensure it is after 134 if_ath or it will not load any HAL chipset support. 135 136 If you want to selectively load things (eg on ye cheape ARM/MIPS 137 platforms where RAM is at a premium) you should: 138 139 * load ath_hal 140 * load the chip modules in question 141 * load ath_rate, ath_dfs 142 * load ath_main 143 * load if_ath_pci and/or if_ath_ahb depending upon your particular 144 bus bind type - this is where probe/attach is done. 145 146 For further comments/feedback, poke adrian@ . 147 14820170523: 149 The "ino64" 64-bit inode project has been committed, which extends 150 a number of types to 64 bits. Upgrading in place requires care and 151 adherence to the documented upgrade procedure. 152 153 If using a custom kernel configuration ensure that the 154 COMPAT_FREEBSD11 option is included (as during the upgrade the 155 system will be running the ino64 kernel with the existing world). 156 157 For the safest in-place upgrade begin by removing previous build 158 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 159 full procedure documented below under the heading "To rebuild 160 everything and install it on the current system." Specifically, 161 a reboot is required after installing the new kernel before 162 installing world. 163 16420170424: 165 The NATM framework including the en(4), fatm(4), hatm(4), and 166 patm(4) devices has been removed. Consumers should plan a 167 migration before the end-of-life date for FreeBSD 11. 168 16920170420: 170 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 171 diff has not been implemented, if those are needed a newer version of 172 GNU diff is available via the diffutils package under the gdiff name. 173 17420170413: 175 As of r316810 for ipfilter, keep frags is no longer assumed when 176 keep state is specified in a rule. r316810 aligns ipfilter with 177 documentation in man pages separating keep frags from keep state. 178 This allows keep state to be specified without forcing keep frags 179 and allows keep frags to be specified independently of keep state. 180 To maintain previous behaviour, also specify keep frags with 181 keep state (as documented in ipf.conf.5). 182 18320170407: 184 arm64 builds now use the base system LLD 4.0.0 linker by default, 185 instead of requiring that the aarch64-binutils port or package be 186 installed. To continue using aarch64-binutils, set 187 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 188 18920170405: 190 The UDP optimization in entry 20160818 that added the sysctl 191 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 192 packets will no longer be treated as L3 broadcast packets. 193 19420170331: 195 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 196 use any explicitly assigned loopback address available in the jail 197 instead of using the first assigned address of the jail. 198 19920170329: 200 The ctl.ko module no longer implements the iSCSI target frontend: 201 cfiscsi.ko does instead. 202 203 If building cfiscsi.ko as a kernel module, the module can be loaded 204 via one of the following methods: 205 - `cfiscsi_load="YES"` in loader.conf(5). 206 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 207 - ctladm(8)/ctld(8), when compiled with iSCSI support 208 (`WITH_ISCSI=yes` in src.conf(5)) 209 210 Please see cfiscsi(4) for more details. 211 21220170316: 213 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 214 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 215 same source (previously, the dependency of mmcsd.ko on mmc.ko was 216 missing, but mmcsd.ko now will refuse to load if it is incompatible 217 with mmc.ko). 218 21920170315: 220 The syntax of ipfw(8) named states was changed to avoid ambiguity. 221 If you have used named states in the firewall rules, you need to modify 222 them after installworld and before rebooting. Now named states must 223 be prefixed with colon. 224 22520170311: 226 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 227 removed as the userland we provide cannot use them. The KMS version 228 (sys/dev/drm2) supports the same hardware. 229 23020170302: 231 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 232 Please see the 20141231 entry below for information about prerequisites 233 and upgrading, if you are not already using clang 3.5.0 or higher. 234 23520170221: 236 The code that provides support for ZFS .zfs/ directory functionality 237 has been reimplemented. It's not possible now to create a snapshot 238 by mkdir under .zfs/snapshot/. That should be the only user visible 239 change. 240 24120170216: 242 EISA bus support has been removed. The WITH_EISA option is no longer 243 valid. 244 24520170215: 246 MCA bus support has been removed. 247 24820170127: 249 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 250 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 251 25220170112: 253 The EM_MULTIQUEUE kernel configuration option is deprecated now that 254 the em(4) driver conforms to iflib specifications. 255 25620170109: 257 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 258 IFLIB. If you have a custom kernel configuration that excludes em(4) 259 but you use igb(4), you need to re-add em(4) to your custom configuration. 260 26120161217: 262 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 263 Please see the 20141231 entry below for information about prerequisites 264 and upgrading, if you are not already using clang 3.5.0 or higher. 265 26620161124: 267 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 268 Please see the 20141231 entry below for information about prerequisites 269 and upgrading, if you are not already using clang 3.5.0 or higher. 270 27120161119: 272 The layout of the pmap structure has changed for powerpc to put the pmap 273 statistics at the front for all CPU variations. libkvm(3) and all tools 274 that link against it need to be recompiled. 275 27620161030: 277 isl(4) and cyapa(4) drivers now require a new driver, 278 chromebook_platform(4), to work properly on Chromebook-class hardware. 279 On other types of hardware the drivers may need to be configured using 280 device hints. Please see the corresponding manual pages for details. 281 28220161017: 283 The urtwn(4) driver was merged into rtwn(4) and now consists of 284 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 285 parts. 286 Also, firmware for RTL8188CE was renamed due to possible name 287 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 288 28920161015: 290 GNU rcs has been removed from base. It is available as packages: 291 - rcs: Latest GPLv3 GNU rcs version. 292 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 293 removed from base. 294 29520161008: 296 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 297 modules now requires that the kernel configuration contain the 298 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 299 30020161003: 301 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 302 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 303 30420160924: 305 Relocatable object files with the extension of .So have been renamed 306 to use an extension of .pico instead. The purpose of this change is 307 to avoid a name clash with shared libraries on case-insensitive file 308 systems. On those file systems, foo.So is the same file as foo.so. 309 31020160918: 311 GNU rcs has been turned off by default. It can (temporarily) be built 312 again by adding WITH_RCS knob in src.conf. 313 Otherwise, GNU rcs is available from packages: 314 - rcs: Latest GPLv3 GNU rcs version. 315 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 316 31720160918: 318 The backup_uses_rcs functionality has been removed from rc.subr. 319 32020160908: 321 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 322 two separate components, QUEUE_MACRO_DEBUG_TRACE and 323 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 324 QUEUE_MACRO_DEBUG behavior. 325 32620160824: 327 r304787 changed some ioctl interfaces between the iSCSI userspace 328 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 329 rebuilt to work with new kernels. __FreeBSD_version has been bumped 330 to 1200005. 331 33220160818: 333 The UDP receive code has been updated to only treat incoming UDP 334 packets that were addressed to an L2 broadcast address as L3 335 broadcast packets. It is not expected that this will affect any 336 standards-conforming UDP application. The new behaviour can be 337 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 338 0. 339 34020160818: 341 Remove the openbsd_poll system call. 342 __FreeBSD_version has been bumped because of this. 343 34420160622: 345 The libc stub for the pipe(2) system call has been replaced with 346 a wrapper that calls the pipe2(2) system call and the pipe(2) 347 system call is now only implemented by the kernels that include 348 "options COMPAT_FREEBSD10" in their config file (this is the 349 default). Users should ensure that this option is enabled in 350 their kernel or upgrade userspace to r302092 before upgrading their 351 kernel. 352 35320160527: 354 CAM will now strip leading spaces from SCSI disks' serial numbers. 355 This will affect users who create UFS filesystems on SCSI disks using 356 those disk's diskid device nodes. For example, if /etc/fstab 357 previously contained a line like 358 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 359 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 360 transforms like gmirror may also be affected. ZFS users should 361 generally be fine. 362 36320160523: 364 The bitstring(3) API has been updated with new functionality and 365 improved performance. But it is binary-incompatible with the old API. 366 Objects built with the new headers may not be linked against objects 367 built with the old headers. 368 36920160520: 370 The brk and sbrk functions have been removed from libc on arm64. 371 Binutils from ports has been updated to not link to these 372 functions and should be updated to the latest version before 373 installing a new libc. 374 37520160517: 376 The armv6 port now defaults to hard float ABI. Limited support 377 for running both hardfloat and soft float on the same system 378 is available using the libraries installed with -DWITH_LIBSOFT. 379 This has only been tested as an upgrade path for installworld 380 and packages may fail or need manual intervention to run. New 381 packages will be needed. 382 383 To update an existing self-hosted armv6hf system, you must add 384 TARGET_ARCH=armv6 on the make command line for both the build 385 and the install steps. 386 38720160510: 388 Kernel modules compiled outside of a kernel build now default to 389 installing to /boot/modules instead of /boot/kernel. Many kernel 390 modules built this way (such as those in ports) already overrode 391 KMODDIR explicitly to install into /boot/modules. However, 392 manually building and installing a module from /sys/modules will 393 now install to /boot/modules instead of /boot/kernel. 394 39520160414: 396 The CAM I/O scheduler has been committed to the kernel. There should be 397 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 398 list of known rogues that claim support for this but actually corrupt 399 data is believed to be complete, be on the lookout for data 400 corruption. The known rogue list is believed to be complete: 401 402 o Crucial MX100, M550 drives with MU01 firmware. 403 o Micron M510 and M550 drives with MU01 firmware. 404 o Micron M500 prior to MU07 firmware 405 o Samsung 830, 840, and 850 all firmwares 406 o FCCT M500 all firmwares 407 408 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 409 with working NCQ TRIM. For Micron branded drives, see your sales rep for 410 updated firmware. Black listed drives will work correctly because these 411 drives work correctly so long as no NCQ TRIMs are sent to them. Given 412 this list is the same as found in Linux, it's believed there are no 413 other rogues in the market place. All other models from the above 414 vendors work. 415 416 To be safe, if you are at all concerned, you can quirk each of your 417 drives to prevent NCQ from being sent by setting: 418 kern.cam.ada.X.quirks="0x2" 419 in loader.conf. If the drive requires the 4k sector quirk, set the 420 quirks entry to 0x3. 421 42220160330: 423 The FAST_DEPEND build option has been removed and its functionality is 424 now the one true way. The old mkdep(1) style of 'make depend' has 425 been removed. See 20160311 for further details. 426 42720160317: 428 Resource range types have grown from unsigned long to uintmax_t. All 429 drivers, and anything using libdevinfo, need to be recompiled. 430 43120160311: 432 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 433 builds. It no longer runs mkdep(1) during 'make depend', and the 434 'make depend' stage can safely be skipped now as it is auto ran 435 when building 'make all' and will generate all SRCS and DPSRCS before 436 building anything else. Dependencies are gathered at compile time with 437 -MF flags kept in separate .depend files per object file. Users should 438 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 439 stale .depend files. 440 44120160306: 442 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 443 kernel modules. Therefore, if you load any kernel modules at boot time, 444 please install the boot loaders after you install the kernel, but before 445 rebooting, e.g.: 446 447 make buildworld 448 make kernel KERNCONF=YOUR_KERNEL_HERE 449 make -C sys/boot install 450 <reboot in single user> 451 452 Then follow the usual steps, described in the General Notes section, 453 below. 454 45520160305: 456 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 457 see the 20141231 entry below for information about prerequisites and 458 upgrading, if you are not already using clang 3.5.0 or higher. 459 46020160301: 461 The AIO subsystem is now a standard part of the kernel. The 462 VFS_AIO kernel option and aio.ko kernel module have been removed. 463 Due to stability concerns, asynchronous I/O requests are only 464 permitted on sockets and raw disks by default. To enable 465 asynchronous I/O requests on all file types, set the 466 vfs.aio.enable_unsafe sysctl to a non-zero value. 467 46820160226: 469 The ELF object manipulation tool objcopy is now provided by the 470 ELF Tool Chain project rather than by GNU binutils. It should be a 471 drop-in replacement, with the addition of arm64 support. The 472 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 473 to obtain the GNU version if necessary. 474 47520160129: 476 Building ZFS pools on top of zvols is prohibited by default. That 477 feature has never worked safely; it's always been prone to deadlocks. 478 Using a zvol as the backing store for a VM guest's virtual disk will 479 still work, even if the guest is using ZFS. Legacy behavior can be 480 restored by setting vfs.zfs.vol.recursive=1. 481 48220160119: 483 The NONE and HPN patches has been removed from OpenSSH. They are 484 still available in the security/openssh-portable port. 485 48620160113: 487 With the addition of ypldap(8), a new _ypldap user is now required 488 during installworld. "mergemaster -p" can be used to add the user 489 prior to installworld, as documented in the handbook. 490 49120151216: 492 The tftp loader (pxeboot) now uses the option root-path directive. As a 493 consequence it no longer looks for a pxeboot.4th file on the tftp 494 server. Instead it uses the regular /boot infrastructure as with the 495 other loaders. 496 49720151211: 498 The code to start recording plug and play data into the modules has 499 been committed. While the old tools will properly build a new kernel, 500 a number of warnings about "unknown metadata record 4" will be produced 501 for an older kldxref. To avoid such warnings, make sure to rebuild 502 the kernel toolchain (or world). Make sure that you have r292078 or 503 later when trying to build 292077 or later before rebuilding. 504 50520151207: 506 Debug data files are now built by default with 'make buildworld' and 507 installed with 'make installworld'. This facilitates debugging but 508 requires more disk space both during the build and for the installed 509 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 510 in src.conf(5). 511 51220151130: 513 r291527 changed the internal interface between the nfsd.ko and 514 nfscommon.ko modules. As such, they must both be upgraded to-gether. 515 __FreeBSD_version has been bumped because of this. 516 51720151108: 518 Add support for unicode collation strings leads to a change of 519 order of files listed by ls(1) for example. To get back to the old 520 behaviour, set LC_COLLATE environment variable to "C". 521 522 Databases administrators will need to reindex their databases given 523 collation results will be different. 524 525 Due to a bug in install(1) it is recommended to remove the ancient 526 locales before running make installworld. 527 528 rm -rf /usr/share/locale/* 529 53020151030: 531 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 532 libcrypto.so.7 or libssl.so.7 must be recompiled. 533 53420151020: 535 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 536 Kernel modules isp_2400_multi and isp_2500_multi were removed and 537 should be replaced with isp_2400 and isp_2500 modules respectively. 538 53920151017: 540 The build previously allowed using 'make -n' to not recurse into 541 sub-directories while showing what commands would be executed, and 542 'make -n -n' to recursively show commands. Now 'make -n' will recurse 543 and 'make -N' will not. 544 54520151012: 546 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 547 and etcupdate will now use this file. A custom sendmail.cf is now 548 updated via this mechanism rather than via installworld. If you had 549 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 550 want to remove the exclusion or change it to "always install". 551 /etc/mail/sendmail.cf is now managed the same way regardless of 552 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 553 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 554 55520151011: 556 Compatibility shims for legacy ATA device names have been removed. 557 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 558 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 559 environment variables, /dev/ad* and /dev/ar* symbolic links. 560 56120151006: 562 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 563 Please see the 20141231 entry below for information about prerequisites 564 and upgrading, if you are not already using clang 3.5.0 or higher. 565 56620150924: 567 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 568 and renamed from .symbols to .debug. This reduces the size requirements 569 on the boot partition or file system and provides consistency with 570 userland debug files. 571 572 When using the supported kernel installation method the 573 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 574 as is done with /boot/kernel. 575 576 Developers wishing to maintain the historical behavior of installing 577 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 578 57920150827: 580 The wireless drivers had undergone changes that remove the 'parent 581 interface' from the ifconfig -l output. The rc.d network scripts 582 used to check presence of a parent interface in the list, so old 583 scripts would fail to start wireless networking. Thus, etcupdate(3) 584 or mergemaster(8) run is required after kernel update, to update your 585 rc.d scripts in /etc. 586 58720150827: 588 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 589 These configurations are now automatically interpreted as 590 'scrub fragment reassemble'. 591 59220150817: 593 Kernel-loadable modules for the random(4) device are back. To use 594 them, the kernel must have 595 596 device random 597 options RANDOM_LOADABLE 598 599 kldload(8) can then be used to load random_fortuna.ko 600 or random_yarrow.ko. Please note that due to the indirect 601 function calls that the loadable modules need to provide, 602 the build-in variants will be slightly more efficient. 603 604 The random(4) kernel option RANDOM_DUMMY has been retired due to 605 unpopularity. It was not all that useful anyway. 606 60720150813: 608 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 609 Control over building the ELF Tool Chain tools is now provided by 610 the WITHOUT_TOOLCHAIN knob. 611 61220150810: 613 The polarity of Pulse Per Second (PPS) capture events with the 614 uart(4) driver has been corrected. Prior to this change the PPS 615 "assert" event corresponded to the trailing edge of a positive PPS 616 pulse and the "clear" event was the leading edge of the next pulse. 617 618 As the width of a PPS pulse in a typical GPS receiver is on the 619 order of 1 millisecond, most users will not notice any significant 620 difference with this change. 621 622 Anyone who has compensated for the historical polarity reversal by 623 configuring a negative offset equal to the pulse width will need to 624 remove that workaround. 625 62620150809: 627 The default group assigned to /dev/dri entries has been changed 628 from 'wheel' to 'video' with the id of '44'. If you want to have 629 access to the dri devices please add yourself to the video group 630 with: 631 632 # pw groupmod video -m $USER 633 63420150806: 635 The menu.rc and loader.rc files will now be replaced during 636 upgrades. Please migrate local changes to menu.rc.local and 637 loader.rc.local instead. 638 63920150805: 640 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 641 strings and strip have been removed. The src.conf(5) knob 642 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 643 64420150728: 645 As ZFS requires more kernel stack pages than is the default on some 646 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 647 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 648 649 Please consider using 'options KSTACK_PAGES=X' where X is greater 650 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 651 65220150706: 653 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 654 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 655 default, i.e., they will not contain "::". For example, instead 656 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 657 to have a more specific match, such as different map entries for 658 IPv6:0:0 vs IPv6:0. This change requires that configuration 659 data (including maps, files, classes, custom ruleset, etc.) must 660 use the same format, so make certain such configuration data is 661 upgrading. As a very simple check search for patterns like 662 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 663 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 664 the cf option UseCompressedIPv6Addresses. 665 66620150630: 667 The default kernel entropy-processing algorithm is now 668 Fortuna, replacing Yarrow. 669 670 Assuming you have 'device random' in your kernel config 671 file, the configurations allow a kernel option to override 672 this default. You may choose *ONE* of: 673 674 options RANDOM_YARROW # Legacy /dev/random algorithm. 675 options RANDOM_DUMMY # Blocking-only driver. 676 677 If you have neither, you get Fortuna. For most people, 678 read no further, Fortuna will give a /dev/random that works 679 like it always used to, and the difference will be irrelevant. 680 681 If you remove 'device random', you get *NO* kernel-processed 682 entropy at all. This may be acceptable to folks building 683 embedded systems, but has complications. Carry on reading, 684 and it is assumed you know what you need. 685 686 *PLEASE* read random(4) and random(9) if you are in the 687 habit of tweaking kernel configs, and/or if you are a member 688 of the embedded community, wanting specific and not-usual 689 behaviour from your security subsystems. 690 691 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 692 random', you will NOT have a functioning /dev/random, and 693 many cryptographic features will not work, including SSH. 694 You may also find strange behaviour from the random(3) set 695 of library functions, in particular sranddev(3), srandomdev(3) 696 and arc4random(3). The reason for this is that the KERN_ARND 697 sysctl only returns entropy if it thinks it has some to 698 share, and with RANDOM_DUMMY or no 'device random' this 699 will never happen. 700 70120150623: 702 An additional fix for the issue described in the 20150614 sendmail 703 entry below has been been committed in revision 284717. 704 70520150616: 706 FreeBSD's old make (fmake) has been removed from the system. It is 707 available as the devel/fmake port or via pkg install fmake. 708 70920150615: 710 The fix for the issue described in the 20150614 sendmail entry 711 below has been been committed in revision 284436. The work 712 around described in that entry is no longer needed unless the 713 default setting is overridden by a confDH_PARAMETERS configuration 714 setting of '5' or pointing to a 512 bit DH parameter file. 715 71620150614: 717 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 718 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 719 and devel/kyua to version 0.20+ and adjust any calling code to work 720 with Kyuafile and kyua. 721 72220150614: 723 The import of openssl to address the FreeBSD-SA-15:10.openssl 724 security advisory includes a change which rejects handshakes 725 with DH parameters below 768 bits. sendmail releases prior 726 to 8.15.2 (not yet released), defaulted to a 512 bit 727 DH parameter setting for client connections. To work around 728 this interoperability, sendmail can be configured to use a 729 2048 bit DH parameter by: 730 731 1. Edit /etc/mail/`hostname`.mc 732 2. If a setting for confDH_PARAMETERS does not exist or 733 exists and is set to a string beginning with '5', 734 replace it with '2'. 735 3. If a setting for confDH_PARAMETERS exists and is set to 736 a file path, create a new file with: 737 openssl dhparam -out /path/to/file 2048 738 4. Rebuild the .cf file: 739 cd /etc/mail/; make; make install 740 5. Restart sendmail: 741 cd /etc/mail/; make restart 742 743 A sendmail patch is coming, at which time this file will be 744 updated. 745 74620150604: 747 Generation of legacy formatted entries have been disabled by default 748 in pwd_mkdb(8), as all base system consumers of the legacy formatted 749 entries were converted to use the new format by default when the new, 750 machine independent format have been added and supported since FreeBSD 751 5.x. 752 753 Please see the pwd_mkdb(8) manual page for further details. 754 75520150525: 756 Clang and llvm have been upgraded to 3.6.1 release. Please see the 757 20141231 entry below for information about prerequisites and upgrading, 758 if you are not already using 3.5.0 or higher. 759 76020150521: 761 TI platform code switched to using vendor DTS files and this update 762 may break existing systems running on Beaglebone, Beaglebone Black, 763 and Pandaboard: 764 765 - dtb files should be regenerated/reinstalled. Filenames are the 766 same but content is different now 767 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 768 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 769 addressing scheme is now pin 25 on /dev/gpioc3. 770 - Pandaboard: /etc/ttys should be updated, serial console device is 771 now /dev/ttyu2, not /dev/ttyu0 772 77320150501: 774 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 775 If you need the GNU extension from groff soelim(1), install groff 776 from package: pkg install groff, or via ports: textproc/groff. 777 77820150423: 779 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 780 defined in symlink(7); previously symlinks were silently ignored. 781 78220150415: 783 The const qualifier has been removed from iconv(3) to comply with 784 POSIX. The ports tree is aware of this from r384038 onwards. 785 78620150416: 787 Libraries specified by LIBADD in Makefiles must have a corresponding 788 DPADD_<lib> variable to ensure correct dependencies. This is now 789 enforced in src.libnames.mk. 790 79120150324: 792 From legacy ata(4) driver was removed support for SATA controllers 793 supported by more functional drivers ahci(4), siis(4) and mvs(4). 794 Kernel modules ataahci and ataadaptec were removed completely, 795 replaced by ahci and mvs modules respectively. 796 79720150315: 798 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 799 the 20141231 entry below for information about prerequisites and 800 upgrading, if you are not already using 3.5.0 or higher. 801 80220150307: 803 The 32-bit PowerPC kernel has been changed to a position-independent 804 executable. This can only be booted with a version of loader(8) 805 newer than January 31, 2015, so make sure to update both world and 806 kernel before rebooting. 807 80820150217: 809 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 810 but before r278950, the RNG was not seeded properly. Immediately 811 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 812 ssh keys or openssl keys) that were generated w/ a kernel from that 813 range. This does not affect programs that directly used /dev/random 814 or /dev/urandom. All userland uses of arc4random(3) are affected. 815 81620150210: 817 The autofs(4) ABI was changed in order to restore binary compatibility 818 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 819 with the new kernel. 820 82120150131: 822 The powerpc64 kernel has been changed to a position-independent 823 executable. This can only be booted with a new version of loader(8), 824 so make sure to update both world and kernel before rebooting. 825 82620150118: 827 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 828 only release, no new features have been added. Please see the 20141231 829 entry below for information about prerequisites and upgrading, if you 830 are not already using 3.5.0. 831 83220150107: 833 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 834 taken from the ELF Tool Chain project rather than GNU binutils. They 835 should be drop-in replacements, with the addition of arm64 support. 836 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 837 binutils tools, if necessary. See 20150805 for updated information. 838 83920150105: 840 The default Unbound configuration now enables remote control 841 using a local socket. Users who have already enabled the 842 local_unbound service should regenerate their configuration 843 by running "service local_unbound setup" as root. 844 84520150102: 846 The GNU texinfo and GNU info pages have been removed. 847 To be able to view GNU info pages please install texinfo from ports. 848 84920141231: 850 Clang, llvm and lldb have been upgraded to 3.5.0 release. 851 852 As of this release, a prerequisite for building clang, llvm and lldb is 853 a C++11 capable compiler and C++11 standard library. This means that to 854 be able to successfully build the cross-tools stage of buildworld, with 855 clang as the bootstrap compiler, your system compiler or cross compiler 856 should either be clang 3.3 or later, or gcc 4.8 or later, and your 857 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 858 later. 859 860 On any standard FreeBSD 10.x or 11.x installation, where clang and 861 libc++ are on by default (that is, on x86 or arm), this should work out 862 of the box. 863 864 On 9.x installations where clang is enabled by default, e.g. on x86 and 865 powerpc, libc++ will not be enabled by default, so libc++ should be 866 built (with clang) and installed first. If both clang and libc++ are 867 missing, build clang first, then use it to build libc++. 868 869 On 8.x and earlier installations, upgrade to 9.x first, and then follow 870 the instructions for 9.x above. 871 872 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 873 default, and do not build clang. 874 875 Many embedded systems are resource constrained, and will not be able to 876 build clang in a reasonable time, or in some cases at all. In those 877 cases, cross building bootable systems on amd64 is a workaround. 878 879 This new version of clang introduces a number of new warnings, of which 880 the following are most likely to appear: 881 882 -Wabsolute-value 883 884 This warns in two cases, for both C and C++: 885 * When the code is trying to take the absolute value of an unsigned 886 quantity, which is effectively a no-op, and almost never what was 887 intended. The code should be fixed, if at all possible. If you are 888 sure that the unsigned quantity can be safely cast to signed, without 889 loss of information or undefined behavior, you can add an explicit 890 cast, or disable the warning. 891 892 * When the code is trying to take an absolute value, but the called 893 abs() variant is for the wrong type, which can lead to truncation. 894 If you want to disable the warning instead of fixing the code, please 895 make sure that truncation will not occur, or it might lead to unwanted 896 side-effects. 897 898 -Wtautological-undefined-compare and 899 -Wundefined-bool-conversion 900 901 These warn when C++ code is trying to compare 'this' against NULL, while 902 'this' should never be NULL in well-defined C++ code. However, there is 903 some legacy (pre C++11) code out there, which actively abuses this 904 feature, which was less strictly defined in previous C++ versions. 905 906 Squid and openjdk do this, for example. The warning can be turned off 907 for C++98 and earlier, but compiling the code in C++11 mode might result 908 in unexpected behavior; for example, the parts of the program that are 909 unreachable could be optimized away. 910 91120141222: 912 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 913 kernel sources have been removed. The .h files remain, since some 914 utilities include them. This will need to be fixed later. 915 If "mount -t oldnfs ..." is attempted, it will fail. 916 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 917 the utilities will report errors. 918 91920141121: 920 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 921 directories to top level SUBDIR variable when their parent 922 directory is included in LOCAL_DIRS. Users with build systems with 923 such hierarchies and without SUBDIR entries in the parent 924 directory Makefiles should add them or add the directories to 925 LOCAL_DIRS. 926 92720141109: 928 faith(4) and faithd(8) have been removed from the base system. Faith 929 has been obsolete for a very long time. 930 93120141104: 932 vt(4), the new console driver, is enabled by default. It brings 933 support for Unicode and double-width characters, as well as 934 support for UEFI and integration with the KMS kernel video 935 drivers. 936 937 You may need to update your console settings in /etc/rc.conf, 938 most probably the keymap. During boot, /etc/rc.d/syscons will 939 indicate what you need to do. 940 941 vt(4) still has issues and lacks some features compared to 942 syscons(4). See the wiki for up-to-date information: 943 https://wiki.freebsd.org/Newcons 944 945 If you want to keep using syscons(4), you can do so by adding 946 the following line to /boot/loader.conf: 947 kern.vty=sc 948 94920141102: 950 pjdfstest has been integrated into kyua as an opt-in test suite. 951 Please see share/doc/pjdfstest/README for more details on how to 952 execute it. 953 95420141009: 955 gperf has been removed from the base system for architectures 956 that use clang. Ports that require gperf will obtain it from the 957 devel/gperf port. 958 95920140923: 960 pjdfstest has been moved from tools/regression/pjdfstest to 961 contrib/pjdfstest . 962 96320140922: 964 At svn r271982, The default linux compat kernel ABI has been adjusted 965 to 2.6.18 in support of the linux-c6 compat ports infrastructure 966 update. If you wish to continue using the linux-f10 compat ports, 967 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 968 encouraged to update their linux-compat packages to linux-c6 during 969 their next update cycle. 970 97120140729: 972 The ofwfb driver, used to provide a graphics console on PowerPC when 973 using vt(4), no longer allows mmap() of all physical memory. This 974 will prevent Xorg on PowerPC with some ATI graphics cards from 975 initializing properly unless x11-servers/xorg-server is updated to 976 1.12.4_8 or newer. 977 97820140723: 979 The xdev targets have been converted to using TARGET and 980 TARGET_ARCH instead of XDEV and XDEV_ARCH. 981 98220140719: 983 The default unbound configuration has been modified to address 984 issues with reverse lookups on networks that use private 985 address ranges. If you use the local_unbound service, run 986 "service local_unbound setup" as root to regenerate your 987 configuration, then "service local_unbound reload" to load the 988 new configuration. 989 99020140709: 991 The GNU texinfo and GNU info pages are not built and installed 992 anymore, WITH_INFO knob has been added to allow to built and install 993 them again. 994 UPDATE: see 20150102 entry on texinfo's removal 995 99620140708: 997 The GNU readline library is now an INTERNALLIB - that is, it is 998 statically linked into consumers (GDB and variants) in the base 999 system, and the shared library is no longer installed. The 1000 devel/readline port is available for third party software that 1001 requires readline. 1002 100320140702: 1004 The Itanium architecture (ia64) has been removed from the list of 1005 known architectures. This is the first step in the removal of the 1006 architecture. 1007 100820140701: 1009 Commit r268115 has added NFSv4.1 server support, merged from 1010 projects/nfsv4.1-server. Since this includes changes to the 1011 internal interfaces between the NFS related modules, a full 1012 build of the kernel and modules will be necessary. 1013 __FreeBSD_version has been bumped. 1014 101520140629: 1016 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1017 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1018 which differs from the behaviour controlled by this knob.) 1019 102020140619: 1021 Maximal length of the serial number in CTL was increased from 16 to 1022 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1023 and ctld, need to be rebuilt to work with a new kernel. 1024 102520140606: 1026 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1027 1 respectively to match the upstream numbers. They were out of 1028 sync because, when they were originally added to FreeBSD, the 1029 upstream versions were not respected. These libraries are private 1030 and not yet built by default, so renumbering them should be a 1031 non-issue. However, unclean source trees will yield broken test 1032 programs once the operator executes "make delete-old-libs" after a 1033 "make installworld". 1034 1035 Additionally, the atf-sh binary was made private by moving it into 1036 /usr/libexec/. Already-built shell test programs will keep the 1037 path to the old binary so they will break after "make delete-old" 1038 is run. 1039 1040 If you are using WITH_TESTS=yes (not the default), wipe the object 1041 tree and rebuild from scratch to prevent spurious test failures. 1042 This is only needed once: the misnumbered libraries and misplaced 1043 binaries have been added to OptionalObsoleteFiles.inc so they will 1044 be removed during a clean upgrade. 1045 104620140512: 1047 Clang and llvm have been upgraded to 3.4.1 release. 1048 104920140508: 1050 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1051 be removed to avoid issues in the future (and has been added to 1052 ObsoleteFiles.inc). 1053 105420140505: 1055 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1056 past, it affected all builds that used the bsd.*.mk files. The old 1057 behavior was a bug, but people may have relied upon it. To get this 1058 behavior back, you can .include /etc/src.conf from /etc/make.conf 1059 (which is still global and isn't changed). This also changes the 1060 behavior of incremental builds inside the tree of individual 1061 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1062 Although this has survived make universe and some upgrade scenarios, 1063 other upgrade scenarios may have broken. At least one form of 1064 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1065 as well... In cases where MAKESYSPATH isn't working with this 1066 setting, you'll need to set it to the full path to your tree. 1067 1068 One side effect of all this cleaning up is that bsd.compiler.mk 1069 is no longer implicitly included by bsd.own.mk. If you wish to 1070 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1071 as well. 1072 107320140430: 1074 The lindev device has been removed since /dev/full has been made a 1075 standard device. __FreeBSD_version has been bumped. 1076 107720140424: 1078 The knob WITHOUT_VI was added to the base system, which controls 1079 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1080 in order to reorder files share/termcap and didn't build ex(1) as a 1081 build tool, so building/installing with WITH_VI is highly advised for 1082 build hosts for older releases. 1083 1084 This issue has been fixed in stable/9 and stable/10 in r277022 and 1085 r276991, respectively. 1086 108720140418: 1088 The YES_HESIOD knob has been removed. It has been obsolete for 1089 a decade. Please move to using WITH_HESIOD instead or your builds 1090 will silently lack HESIOD. 1091 109220140405: 1093 The uart(4) driver has been changed with respect to its handling 1094 of the low-level console. Previously the uart(4) driver prevented 1095 any process from changing the baudrate or the CLOCAL and HUPCL 1096 control flags. By removing the restrictions, operators can make 1097 changes to the serial console port without having to reboot. 1098 However, when getty(8) is started on the serial device that is 1099 associated with the low-level console, a misconfigured terminal 1100 line in /etc/ttys will now have a real impact. 1101 Before upgrading the kernel, make sure that /etc/ttys has the 1102 serial console device configured as 3wire without baudrate to 1103 preserve the previous behaviour. E.g: 1104 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1105 110620140306: 1107 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1108 to improve performance. To re-enable it, if needed, run rpcbind 1109 with command line option -W. 1110 111120140226: 1112 Switched back to the GPL dtc compiler due to updates in the upstream 1113 dts files not being supported by the BSDL dtc compiler. You will need 1114 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1115 may result while building dtb files during a kernel build if you fail 1116 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1117 111820140216: 1119 Clang and llvm have been upgraded to 3.4 release. 1120 112120140216: 1122 The nve(4) driver has been removed. Please use the nfe(4) driver 1123 for NVIDIA nForce MCP Ethernet adapters instead. 1124 112520140212: 1126 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1127 This could cause certain C++ applications using shared libraries built 1128 against the previous version of libc++ to crash. The incompatibility 1129 has now been fixed, but any C++ applications or shared libraries built 1130 between r261283 and r261801 should be recompiled. 1131 113220140204: 1133 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1134 capability mode support. Please note that enabling the feature in 1135 kernel is still highly recommended. 1136 113720140131: 1138 OpenSSH is now built with sandbox support, and will use sandbox as 1139 the default privilege separation method. This requires Capsicum 1140 capability mode support in kernel. 1141 114220140128: 1143 The libelf and libdwarf libraries have been updated to newer 1144 versions from upstream. Shared library version numbers for 1145 these two libraries were bumped. Any ports or binaries 1146 requiring these two libraries should be recompiled. 1147 __FreeBSD_version is bumped to 1100006. 1148 114920140110: 1150 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1151 instead of providing an explicit one, this would prevent such 1152 Makefile from providing its own Kyuafile in the future during 1153 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1154 intervention is needed to clean an objdir if you use NO_CLEAN: 1155 # find /usr/obj -name Kyuafile | xargs rm -f 1156 115720131213: 1158 The behavior of gss_pseudo_random() for the krb5 mechanism 1159 has changed, for applications requesting a longer random string 1160 than produced by the underlying enctype's pseudo-random() function. 1161 In particular, the random string produced from a session key of 1162 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1163 be different at the 17th octet and later, after this change. 1164 The counter used in the PRF+ construction is now encoded as a 1165 big-endian integer in accordance with RFC 4402. 1166 __FreeBSD_version is bumped to 1100004. 1167 116820131108: 1169 The WITHOUT_ATF build knob has been removed and its functionality 1170 has been subsumed into the more generic WITHOUT_TESTS. If you were 1171 using the former to disable the build of the ATF libraries, you 1172 should change your settings to use the latter. 1173 117420131025: 1175 The default version of mtree is nmtree which is obtained from 1176 NetBSD. The output is generally the same, but may vary 1177 slightly. If you found you need identical output adding 1178 "-F freebsd9" to the command line should do the trick. For the 1179 time being, the old mtree is available as fmtree. 1180 118120131014: 1182 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1183 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1184 1.1.4_8 and verify bsdyml not linked in, before running "make 1185 delete-old-libs": 1186 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1187 or 1188 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1189 119020131010: 1191 The stable/10 branch has been created in subversion from head 1192 revision r256279. 1193 119420131010: 1195 The rc.d/jail script has been updated to support jail(8) 1196 configuration file. The "jail_<jname>_*" rc.conf(5) variables 1197 for per-jail configuration are automatically converted to 1198 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 1199 This is transparently backward compatible. See below about some 1200 incompatibilities and rc.conf(5) manual page for more details. 1201 1202 These variables are now deprecated in favor of jail(8) configuration 1203 file. One can use "rc.d/jail config <jname>" command to generate 1204 a jail(8) configuration file in /var/run/jail.<jname>.conf without 1205 running the jail(8) utility. The default pathname of the 1206 configuration file is /etc/jail.conf and can be specified by 1207 using $jail_conf or $jail_<jname>_conf variables. 1208 1209 Please note that jail_devfs_ruleset accepts an integer at 1210 this moment. Please consider to rewrite the ruleset name 1211 with an integer. 1212 121320130930: 1214 BIND has been removed from the base system. If all you need 1215 is a local resolver, simply enable and start the local_unbound 1216 service instead. Otherwise, several versions of BIND are 1217 available in the ports tree. The dns/bind99 port is one example. 1218 1219 With this change, nslookup(1) and dig(1) are no longer in the base 1220 system. Users should instead use host(1) and drill(1) which are 1221 in the base system. Alternatively, nslookup and dig can 1222 be obtained by installing the dns/bind-tools port. 1223 122420130916: 1225 With the addition of unbound(8), a new unbound user is now 1226 required during installworld. "mergemaster -p" can be used to 1227 add the user prior to installworld, as documented in the handbook. 1228 122920130911: 1230 OpenSSH is now built with DNSSEC support, and will by default 1231 silently trust signed SSHFP records. This can be controlled with 1232 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1233 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1234 123520130906: 1236 The GNU Compiler Collection and C++ standard library (libstdc++) 1237 are no longer built by default on platforms where clang is the system 1238 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1239 options in src.conf. 1240 124120130905: 1242 The PROCDESC kernel option is now part of the GENERIC kernel 1243 configuration and is required for the rwhod(8) to work. 1244 If you are using custom kernel configuration, you should include 1245 'options PROCDESC'. 1246 124720130905: 1248 The API and ABI related to the Capsicum framework was modified 1249 in backward incompatible way. The userland libraries and programs 1250 have to be recompiled to work with the new kernel. This includes the 1251 following libraries and programs, but the whole buildworld is 1252 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1253 kdump, procstat, rwho, rwhod, uniq. 1254 125520130903: 1256 AES-NI intrinsic support has been added to gcc. The AES-NI module 1257 has been updated to use this support. A new gcc is required to build 1258 the aesni module on both i386 and amd64. 1259 126020130821: 1261 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1262 Thus "device padlock_rng" and "device rdrand_rng" should be 1263 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1264 126520130813: 1266 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1267 enables just the iconv* functionality and is now on by default. 1268 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1269 compatibility. Set WITHOUT_ICONV to build the old way. 1270 If you have been using WITH_ICONV before, you will very likely 1271 need to turn on WITH_LIBICONV_COMPAT. 1272 127320130806: 1274 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1275 Illumos origin, including ZFS. If you have INVARIANTS in your 1276 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1277 explicitly. 1278 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1279 locks if WITNESS option was set. Because that generated a lot of 1280 witness(9) reports and all of them were believed to be false 1281 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1282 can be used to achieve the previous behavior. 1283 128420130806: 1285 Timer values in IPv6 data structures now use time_uptime instead 1286 of time_second. Although this is not a user-visible functional 1287 change, userland utilities which directly use them---ndp(8), 1288 rtadvd(8), and rtsold(8) in the base system---need to be updated 1289 to r253970 or later. 1290 129120130802: 1292 find -delete can now delete the pathnames given as arguments, 1293 instead of only files found below them or if the pathname did 1294 not contain any slashes. Formerly, the following error message 1295 would result: 1296 1297 find: -delete: <path>: relative path potentially not safe 1298 1299 Deleting the pathnames given as arguments can be prevented 1300 without error messages using -mindepth 1 or by changing 1301 directory and passing "." as argument to find. This works in the 1302 old as well as the new version of find. 1303 130420130726: 1305 Behavior of devfs rules path matching has been changed. 1306 Pattern is now always matched against fully qualified devfs 1307 path and slash characters must be explicitly matched by 1308 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1309 subdirectories must be reviewed. 1310 131120130716: 1312 The default ARM ABI has changed to the ARM EABI. The old ABI is 1313 incompatible with the ARM EABI and all programs and modules will 1314 need to be rebuilt to work with a new kernel. 1315 1316 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1317 1318 NOTE: Support for the old ABI will be removed in the future and 1319 users are advised to upgrade. 1320 132120130709: 1322 pkg_install has been disconnected from the build if you really need it 1323 you should add WITH_PKGTOOLS in your src.conf(5). 1324 132520130709: 1326 Most of network statistics structures were changed to be able 1327 keep 64-bits counters. Thus all tools, that work with networking 1328 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1329 133020130618: 1331 Fix a bug that allowed a tracing process (e.g. gdb) to write 1332 to a memory-mapped file in the traced process's address space 1333 even if neither the traced process nor the tracing process had 1334 write access to that file. 1335 133620130615: 1337 CVS has been removed from the base system. An exact copy 1338 of the code is available from the devel/cvs port. 1339 134020130613: 1341 Some people report the following error after the switch to bmake: 1342 1343 make: illegal option -- J 1344 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1345 ... 1346 *** [buildworld] Error code 2 1347 1348 this likely due to an old instance of make in 1349 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1350 which src/Makefile will use that blindly, if it exists, so if 1351 you see the above error: 1352 1353 rm -rf `make -V MAKEPATH` 1354 1355 should resolve it. 1356 135720130516: 1358 Use bmake by default. 1359 Whereas before one could choose to build with bmake via 1360 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1361 make. The goal is to remove these knobs for 10-RELEASE. 1362 1363 It is worth noting that bmake (like gmake) treats the command 1364 line as the unit of failure, rather than statements within the 1365 command line. Thus '(cd some/where && dosomething)' is safer 1366 than 'cd some/where; dosomething'. The '()' allows consistent 1367 behavior in parallel build. 1368 136920130429: 1370 Fix a bug that allows NFS clients to issue READDIR on files. 1371 137220130426: 1373 The WITHOUT_IDEA option has been removed because 1374 the IDEA patent expired. 1375 137620130426: 1377 The sysctl which controls TRIM support under ZFS has been renamed 1378 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1379 enabled by default. 1380 138120130425: 1382 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1383 rather than creating it's own in the temporary directory in 1384 order allow access to bootstrapped versions of tools such as 1385 install and mtree. When upgrading from version of FreeBSD where 1386 the install command does not support -l, you will need to 1387 install a new mergemaster command if mergemaster -p is required. 1388 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1389 && make install). 1390 139120130404: 1392 Legacy ATA stack, disabled and replaced by new CAM-based one since 1393 FreeBSD 9.0, completely removed from the sources. Kernel modules 1394 atadisk and atapi*, user-level tools atacontrol and burncd are 1395 removed. Kernel option `options ATA_CAM` is now permanently enabled 1396 and removed. 1397 139820130319: 1399 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1400 and socketpair(2). Software, in particular Kerberos, may 1401 automatically detect and use these during building. The resulting 1402 binaries will not work on older kernels. 1403 140420130308: 1405 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1406 information, see the respective 20130304 entry). 1407 140820130304: 1409 Recent commits to callout(9) changed the size of struct callout, 1410 so the KBI is probably heavily disturbed. Also, some functions 1411 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1412 by macros. Every kernel module using it won't load, so rebuild 1413 is requested. 1414 1415 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1416 but does not initialize by default (because of the new CTL_DISABLE 1417 option) to save memory. To re-enable it, remove the CTL_DISABLE 1418 option from the kernel config file or set kern.cam.ctl.disable=0 1419 in /boot/loader.conf. 1420 142120130301: 1422 The ctl device has been disabled in GENERIC for i386 and amd64. 1423 This was done due to the extra memory being allocated at system 1424 initialisation time by the ctl driver which was only used if 1425 a CAM target device was created. This makes a FreeBSD system 1426 unusable on 128MB or less of RAM. 1427 142820130208: 1429 A new compression method (lz4) has been merged to -HEAD. Please 1430 refer to zpool-features(7) for more information. 1431 1432 Please refer to the "ZFS notes" section of this file for information 1433 on upgrading boot ZFS pools. 1434 143520130129: 1436 A BSD-licensed patch(1) variant has been added and is installed 1437 as bsdpatch, being the GNU version the default patch. 1438 To inverse the logic and use the BSD-licensed one as default, 1439 while having the GNU version installed as gnupatch, rebuild 1440 and install world with the WITH_BSD_PATCH knob set. 1441 144220130121: 1443 Due to the use of the new -l option to install(1) during build 1444 and install, you must take care not to directly set the INSTALL 1445 make variable in your /etc/make.conf, /etc/src.conf, or on the 1446 command line. If you wish to use the -C flag for all installs 1447 you may be able to add INSTALL+=-C to /etc/make.conf or 1448 /etc/src.conf. 1449 145020130118: 1451 The install(1) option -M has changed meaning and now takes an 1452 argument that is a file or path to append logs to. In the 1453 unlikely event that -M was the last option on the command line 1454 and the command line contained at least two files and a target 1455 directory the first file will have logs appended to it. The -M 1456 option served little practical purpose in the last decade so its 1457 use is expected to be extremely rare. 1458 145920121223: 1460 After switching to Clang as the default compiler some users of ZFS 1461 on i386 systems started to experience stack overflow kernel panics. 1462 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1463 146420121222: 1465 GEOM_LABEL now mangles label names read from file system metadata. 1466 Mangling affect labels containing spaces, non-printable characters, 1467 '%' or '"'. Device names in /etc/fstab and other places may need to 1468 be updated. 1469 147020121217: 1471 By default, only the 10 most recent kernel dumps will be saved. To 1472 restore the previous behaviour (no limit on the number of kernel dumps 1473 stored in the dump directory) add the following line to /etc/rc.conf: 1474 1475 savecore_flags="" 1476 147720121201: 1478 With the addition of auditdistd(8), a new auditdistd user is now 1479 required during installworld. "mergemaster -p" can be used to 1480 add the user prior to installworld, as documented in the handbook. 1481 148220121117: 1483 The sin6_scope_id member variable in struct sockaddr_in6 is now 1484 filled by the kernel before passing the structure to the userland via 1485 sysctl or routing socket. This means the KAME-specific embedded scope 1486 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1487 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1488 __FreeBSD_version is bumped to 1000025. 1489 149020121105: 1491 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1492 This means that the world and kernel will be compiled with clang 1493 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1494 and /usr/bin/cpp. To disable this behavior and revert to building 1495 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1496 of current may need to bootstrap WITHOUT_CLANG first if the clang 1497 build fails (its compatibility window doesn't extend to the 9 stable 1498 branch point). 1499 150020121102: 1501 The IPFIREWALL_FORWARD kernel option has been removed. Its 1502 functionality now turned on by default. 1503 150420121023: 1505 The ZERO_COPY_SOCKET kernel option has been removed and 1506 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1507 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1508 mechanism which is not safe and may result in kernel crashes. 1509 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1510 driver supports disposeable external page sized mbuf storage. 1511 Proper replacements for both zero-copy mechanisms are under 1512 consideration and will eventually lead to complete removal 1513 of the two kernel options. 1514 151520121023: 1516 The IPv4 network stack has been converted to network byte 1517 order. The following modules need to be recompiled together 1518 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1519 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1520 152120121022: 1522 Support for non-MPSAFE filesystems was removed from VFS. The 1523 VFS_VERSION was bumped, all filesystem modules shall be 1524 recompiled. 1525 152620121018: 1527 All the non-MPSAFE filesystems have been disconnected from 1528 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1529 portalfs, smbfs, xfs. 1530 153120121016: 1532 The interface cloning API and ABI has changed. The following 1533 modules need to be recompiled together with kernel: 1534 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1535 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1536 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1537 153820121015: 1539 The sdhci driver was split in two parts: sdhci (generic SD Host 1540 Controller logic) and sdhci_pci (actual hardware driver). 1541 No kernel config modifications are required, but if you 1542 load sdhc as a module you must switch to sdhci_pci instead. 1543 154420121014: 1545 Import the FUSE kernel and userland support into base system. 1546 154720121013: 1548 The GNU sort(1) program has been removed since the BSD-licensed 1549 sort(1) has been the default for quite some time and no serious 1550 problems have been reported. The corresponding WITH_GNU_SORT 1551 knob has also gone. 1552 155320121006: 1554 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1555 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1556 with new kernel. 1557 155820121001: 1559 The net80211(4) ABI has been changed to allow for improved driver 1560 PS-POLL and power-save support. All wireless drivers need to be 1561 recompiled to work with the new kernel. 1562 156320120913: 1564 The random(4) support for the VIA hardware random number 1565 generator (`PADLOCK') is no longer enabled unconditionally. 1566 Add the padlock_rng device in the custom kernel config if 1567 needed. The GENERIC kernels on i386 and amd64 do include the 1568 device, so the change only affects the custom kernel 1569 configurations. 1570 157120120908: 1572 The pf(4) packet filter ABI has been changed. pfctl(8) and 1573 snmp_pf module need to be recompiled to work with new kernel. 1574 157520120828: 1576 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1577 to -HEAD. Pools that have empty_bpobj in active state can not be 1578 imported read-write with ZFS implementations that do not support 1579 this feature. For more information read the zpool-features(5) 1580 manual page. 1581 158220120727: 1583 The sparc64 ZFS loader has been changed to no longer try to auto- 1584 detect ZFS providers based on diskN aliases but now requires these 1585 to be explicitly listed in the OFW boot-device environment variable. 1586 158720120712: 1588 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1589 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1590 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1591 159220120712: 1593 The following sysctls and tunables have been renamed for consistency 1594 with other variables: 1595 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1596 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1597 159820120628: 1599 The sort utility has been replaced with BSD sort. For now, GNU sort 1600 is also available as "gnusort" or the default can be set back to 1601 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1602 installed as "bsdsort". 1603 160420120611: 1605 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1606 Starting with this version the old system of ZFS pool versioning 1607 is superseded by "feature flags". This concept enables forward 1608 compatibility against certain future changes in functionality of ZFS 1609 pools. The first read-only compatible "feature flag" for ZFS pools 1610 is named "com.delphix:async_destroy". For more information 1611 read the new zpool-features(5) manual page. 1612 Please refer to the "ZFS notes" section of this file for information 1613 on upgrading boot ZFS pools. 1614 161520120417: 1616 The malloc(3) implementation embedded in libc now uses sources imported 1617 as contrib/jemalloc. The most disruptive API change is to 1618 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1619 delete it prior to installworld, and optionally re-create it using the 1620 new format after rebooting. See malloc.conf(5) for details 1621 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1622 NAMESPACE section). 1623 162420120328: 1625 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1626 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1627 now spelled mips. This is to aid compatibility with third-party 1628 software that expects this naming scheme in uname(3). Little-endian 1629 settings are unchanged. If you are updating a big-endian mips64 machine 1630 from before this change, you may need to set MACHINE_ARCH=mips64 in 1631 your environment before the new build system will recognize your machine. 1632 163320120306: 1634 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1635 platforms. 1636 163720120229: 1638 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1639 nullfs(5) did not pass through all behaviours to the underlying layer, 1640 as a result if we bound to a socket on the lower layer we could connect 1641 only to the lower path; if we bound to the upper layer we could connect 1642 only to the upper path. The new behavior is one can connect to both the 1643 lower and the upper paths regardless what layer path one binds to. 1644 164520120211: 1646 The getifaddrs upgrade path broken with 20111215 has been restored. 1647 If you have upgraded in between 20111215 and 20120209 you need to 1648 recompile libc again with your kernel. You still need to recompile 1649 world to be able to configure CARP but this restriction already 1650 comes from 20111215. 1651 165220120114: 1653 The set_rcvar() function has been removed from /etc/rc.subr. All 1654 base and ports rc.d scripts have been updated, so if you have a 1655 port installed with a script in /usr/local/etc/rc.d you can either 1656 hand-edit the rcvar= line, or reinstall the port. 1657 1658 An easy way to handle the mass-update of /etc/rc.d: 1659 rm /etc/rc.d/* && mergemaster -i 1660 166120120109: 1662 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1663 on the current CPU and prevents other threads from running. 1664 This behavior can be reverted using the kern.stop_scheduler_on_panic 1665 tunable/sysctl. 1666 The new behavior can be incompatible with kern.sync_on_panic. 1667 166820111215: 1669 The carp(4) facility has been changed significantly. Configuration 1670 of the CARP protocol via ifconfig(8) has changed, as well as format 1671 of CARP events submitted to devd(8) has changed. See manual pages 1672 for more information. The arpbalance feature of carp(4) is currently 1673 not supported anymore. 1674 1675 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1676 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1677 need to be recompiled. 1678 167920111122: 1680 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1681 /dev/wmistat0. 1682 168320111108: 1684 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1685 explicitely support non-MPSAFE filesystems. 1686 It is on by default for all supported platform at this present 1687 time. 1688 168920111101: 1690 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1691 i386 and pc98 GENERIC kernel configuration files. 1692 169320110930: 1694 sysinstall has been removed 1695 169620110923: 1697 The stable/9 branch created in subversion. This corresponds to the 1698 RELENG_9 branch in CVS. 1699 1700COMMON ITEMS: 1701 1702 General Notes 1703 ------------- 1704 Avoid using make -j when upgrading. While generally safe, there are 1705 sometimes problems using -j to upgrade. If your upgrade fails with 1706 -j, please try again without -j. From time to time in the past there 1707 have been problems using -j with buildworld and/or installworld. This 1708 is especially true when upgrading between "distant" versions (eg one 1709 that cross a major release boundary or several minor releases, or when 1710 several months have passed on the -current branch). 1711 1712 Sometimes, obscure build problems are the result of environment 1713 poisoning. This can happen because the make utility reads its 1714 environment when searching for values for global variables. To run 1715 your build attempts in an "environmental clean room", prefix all make 1716 commands with 'env -i '. See the env(1) manual page for more details. 1717 1718 When upgrading from one major version to another it is generally best to 1719 upgrade to the latest code in the currently installed branch first, then 1720 do an upgrade to the new branch. This is the best-tested upgrade path, 1721 and has the highest probability of being successful. Please try this 1722 approach if you encounter problems with a major version upgrade. Since 1723 the stable 4.x branch point, one has generally been able to upgade from 1724 anywhere in the most recent stable branch to head / current (or even the 1725 last couple of stable branches). See the top of this file when there's 1726 an exception. 1727 1728 When upgrading a live system, having a root shell around before 1729 installing anything can help undo problems. Not having a root shell 1730 around can lead to problems if pam has changed too much from your 1731 starting point to allow continued authentication after the upgrade. 1732 1733 This file should be read as a log of events. When a later event changes 1734 information of a prior event, the prior event should not be deleted. 1735 Instead, a pointer to the entry with the new information should be 1736 placed in the old entry. Readers of this file should also sanity check 1737 older entries before relying on them blindly. Authors of new entries 1738 should write them with this in mind. 1739 1740 ZFS notes 1741 --------- 1742 When upgrading the boot ZFS pool to a new version, always follow 1743 these two steps: 1744 1745 1.) recompile and reinstall the ZFS boot loader and boot block 1746 (this is part of "make buildworld" and "make installworld") 1747 1748 2.) update the ZFS boot block on your boot drive 1749 1750 The following example updates the ZFS boot block on the first 1751 partition (freebsd-boot) of a GPT partitioned drive ada0: 1752 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1753 1754 Non-boot pools do not need these updates. 1755 1756 To build a kernel 1757 ----------------- 1758 If you are updating from a prior version of FreeBSD (even one just 1759 a few days old), you should follow this procedure. It is the most 1760 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1761 1762 make kernel-toolchain 1763 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1764 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1765 1766 To test a kernel once 1767 --------------------- 1768 If you just want to boot a kernel once (because you are not sure 1769 if it works, or if you want to boot a known bad kernel to provide 1770 debugging information) run 1771 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1772 nextboot -k testkernel 1773 1774 To just build a kernel when you know that it won't mess you up 1775 -------------------------------------------------------------- 1776 This assumes you are already running a CURRENT system. Replace 1777 ${arch} with the architecture of your machine (e.g. "i386", 1778 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1779 1780 cd src/sys/${arch}/conf 1781 config KERNEL_NAME_HERE 1782 cd ../compile/KERNEL_NAME_HERE 1783 make depend 1784 make 1785 make install 1786 1787 If this fails, go to the "To build a kernel" section. 1788 1789 To rebuild everything and install it on the current system. 1790 ----------------------------------------------------------- 1791 # Note: sometimes if you are running current you gotta do more than 1792 # is listed here if you are upgrading from a really old current. 1793 1794 <make sure you have good level 0 dumps> 1795 make buildworld 1796 make kernel KERNCONF=YOUR_KERNEL_HERE 1797 [1] 1798 <reboot in single user> [3] 1799 mergemaster -Fp [5] 1800 make installworld 1801 mergemaster -Fi [4] 1802 make delete-old [6] 1803 <reboot> 1804 1805 To cross-install current onto a separate partition 1806 -------------------------------------------------- 1807 # In this approach we use a separate partition to hold 1808 # current's root, 'usr', and 'var' directories. A partition 1809 # holding "/", "/usr" and "/var" should be about 2GB in 1810 # size. 1811 1812 <make sure you have good level 0 dumps> 1813 <boot into -stable> 1814 make buildworld 1815 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1816 <maybe newfs current's root partition> 1817 <mount current's root partition on directory ${CURRENT_ROOT}> 1818 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1819 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1820 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1821 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1822 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1823 <reboot into current> 1824 <do a "native" rebuild/install as described in the previous section> 1825 <maybe install compatibility libraries from ports/misc/compat*> 1826 <reboot> 1827 1828 1829 To upgrade in-place from stable to current 1830 ---------------------------------------------- 1831 <make sure you have good level 0 dumps> 1832 make buildworld [9] 1833 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1834 [1] 1835 <reboot in single user> [3] 1836 mergemaster -Fp [5] 1837 make installworld 1838 mergemaster -Fi [4] 1839 make delete-old [6] 1840 <reboot> 1841 1842 Make sure that you've read the UPDATING file to understand the 1843 tweaks to various things you need. At this point in the life 1844 cycle of current, things change often and you are on your own 1845 to cope. The defaults can also change, so please read ALL of 1846 the UPDATING entries. 1847 1848 Also, if you are tracking -current, you must be subscribed to 1849 [email protected]. Make sure that before you update 1850 your sources that you have read and understood all the recent 1851 messages there. If in doubt, please track -stable which has 1852 much fewer pitfalls. 1853 1854 [1] If you have third party modules, such as vmware, you 1855 should disable them at this point so they don't crash your 1856 system on reboot. 1857 1858 [3] From the bootblocks, boot -s, and then do 1859 fsck -p 1860 mount -u / 1861 mount -a 1862 cd src 1863 adjkerntz -i # if CMOS is wall time 1864 Also, when doing a major release upgrade, it is required that 1865 you boot into single user mode to do the installworld. 1866 1867 [4] Note: This step is non-optional. Failure to do this step 1868 can result in a significant reduction in the functionality of the 1869 system. Attempting to do it by hand is not recommended and those 1870 that pursue this avenue should read this file carefully, as well 1871 as the archives of freebsd-current and freebsd-hackers mailing lists 1872 for potential gotchas. The -U option is also useful to consider. 1873 See mergemaster(8) for more information. 1874 1875 [5] Usually this step is a noop. However, from time to time 1876 you may need to do this if you get unknown user in the following 1877 step. It never hurts to do it all the time. You may need to 1878 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1879 install) after the buildworld before this step if you last updated 1880 from current before 20130425 or from -stable before 20130430. 1881 1882 [6] This only deletes old files and directories. Old libraries 1883 can be deleted by "make delete-old-libs", but you have to make 1884 sure that no program is using those libraries anymore. 1885 1886 [8] In order to have a kernel that can run the 4.x binaries needed to 1887 do an installworld, you must include the COMPAT_FREEBSD4 option in 1888 your kernel. Failure to do so may leave you with a system that is 1889 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1890 required to run the 5.x binaries on more recent kernels. And so on 1891 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1892 1893 Make sure that you merge any new devices from GENERIC since the 1894 last time you updated your kernel config file. 1895 1896 [9] When checking out sources, you must include the -P flag to have 1897 cvs prune empty directories. 1898 1899 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1900 "?=" instead of the "=" assignment operator, so that buildworld can 1901 override the CPUTYPE if it needs to. 1902 1903 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1904 not on the command line, or in /etc/make.conf. buildworld will 1905 warn if it is improperly defined. 1906FORMAT: 1907 1908This file contains a list, in reverse chronological order, of major 1909breakages in tracking -current. It is not guaranteed to be a complete 1910list of such breakages, and only contains entries since September 23, 2011. 1911If you need to see UPDATING entries from before that date, you will need 1912to fetch an UPDATING file from an older FreeBSD release. 1913 1914Copyright information: 1915 1916Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1917 1918Redistribution, publication, translation and use, with or without 1919modification, in full or in part, in any form or format of this 1920document are permitted without further permission from the author. 1921 1922THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1923IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1924WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1925DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1926INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1927(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1928SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1929HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1930STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1931IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1932POSSIBILITY OF SUCH DAMAGE. 1933 1934Contact Warner Losh if you have any questions about your use of 1935this document. 1936 1937$FreeBSD$ 1938