1Updating Information for FreeBSD current users. 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/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 5420171021: 55 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT 56 options are changing from controlling the build if defined / undefined 57 to controlling the build with explicit 'yes' or 'no' values. They will 58 shift to WITH/WITHOUT options to match other options in the system. 59 6020171010: 61 libstand has turned into a private library for sys/boot use only. 62 It is no longer supported as a public interface outside of sys/boot. 63 6420171005: 65 The arm port has split armv6 into armv6 and armv7. armv7 is now 66 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system 67 and are running a kernel from before r324363, you will need to add 68 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build. 69 7020171003: 71 When building multiple kernels using KERNCONF, non-existent KERNCONF 72 files will produce an error and buildkernel will fail. Previously 73 missing KERNCONF files silently failed giving no indication as to 74 why, only to subsequently discover during installkernel that the 75 desired kernel was never built in the first place. 76 7720170912: 78 The default serial number format for CTL LUNs has changed. This will 79 affect users who use /dev/diskid/* device nodes, or whose FibreChannel 80 or iSCSI clients care about their LUNs' serial numbers. Users who 81 require serial number stability should hardcode serial numbers in 82 /etc/ctl.conf . 83 8420170912: 85 For 32-bit arm compiled for hard-float support, soft-floating point 86 binaries now always get their shared libraries from 87 LD_SOFT_LIBRARY_PATH (in the past, this was only used if 88 /usr/libsoft also existed). Only users with a hard-float ld.so, but 89 soft-float everything else should be affected. 90 9120170826: 92 The geli password typed at boot is now hidden. To restore the previous 93 behavior, see geli(8) for configuration options. 94 9520170825: 96 Move PMTUD blackhole counters to TCPSTATS and remove them from bare 97 sysctl values. Minor nit, but requires a rebuild of both world/kernel 98 to complete. 99 10020170814: 101 "make check" behavior (made in ^/head@r295380) has been changed to 102 execute from a limited sandbox, as opposed to executing from 103 ${TESTSDIR}. 104 105 Behavioral changes: 106 - The "beforecheck" and "aftercheck" targets are now specified. 107 - ${CHECKDIR} (added in commit noted above) has been removed. 108 - Legacy behavior can be enabled by setting 109 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment. 110 111 If the limited sandbox mode is enabled, "make check" will execute 112 "make distribution", then install, execute the tests, and clean up the 113 sandbox if successful. 114 115 The "make distribution" and "make install" targets are typically run as 116 root to set appropriate permissions and ownership at installation time. 117 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the 118 environment if executing "make check" with limited sandbox mode using 119 an unprivileged user. 120 12120170808: 122 Since the switch to GPT disk labels, fsck for UFS/FFS has been 123 unable to automatically find alternate superblocks. As of r322297, 124 the information needed to find alternate superblocks has been 125 moved to the end of the area reserved for the boot block. 126 Filesystems created with a newfs of this vintage or later 127 will create the recovery information. If you have a filesystem 128 created prior to this change and wish to have a recovery block 129 created for your filesystem, you can do so by running fsck in 130 forground mode (i.e., do not use the -p or -y options). As it 131 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 132 to which you should answer yes. 133 13420170728: 135 As of r321665, an NFSv4 server configuration that services 136 Kerberos mounts or clients that do not support the uid/gid in 137 owner/owner_group string capability, must explicitly enable 138 the nfsuserd daemon by adding nfsuserd_enable="YES" to the 139 machine's /etc/rc.conf file. 140 14120170722: 142 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 143 Please see the 20141231 entry below for information about prerequisites 144 and upgrading, if you are not already using clang 3.5.0 or higher. 145 14620170701: 147 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the 148 r-commands (rlogin, rsh, etc.) to be built with the base system. 149 15020170625: 151 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is 152 a very major ABI incompatible change, so users of FreeBSD/powerpc must 153 be careful when performing source upgrades. It is best to run 154 'make installworld' from an alternate root system, either a live 155 CD/memory stick, or a temporary root partition. Additionally, all ports 156 must be recompiled. powerpc64 is largely unaffected, except in the case 157 of 32-bit compatibility. All 32-bit binaries will be affected. 158 15920170623: 160 Forward compatibility for the "ino64" project have been committed. This 161 will allow most new binaries to run on older kernels in a limited 162 fashion. This prevents many of the common foot-shooting actions in the 163 upgrade as well as the limited ability to roll back the kernel across 164 the ino64 upgrade. Complicated use cases may not work properly, though 165 enough simpler ones work to allow recovery in most situations. 166 16720170620: 168 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC 169 if you require the GPL compiler. 170 17120170618: 172 The internal ABI used for communication between the NFS kernel modules 173 was changed by r320085, so __FreeBSD_version was bumped to 174 ensure all the NFS related modules are updated together. 175 17620170617: 177 The ABI of struct event was changed by extending the data 178 member to 64bit and adding ext fields. For upgrade, same 179 precautions as for the entry 20170523 "ino64" must be 180 followed. 181 18220170531: 183 The GNU roff toolchain has been removed from base. To render manpages 184 which are not supported by mandoc(1), man(1) can fallback on GNU roff 185 from ports (and recommends to install it). 186 To render roff(7) documents, consider using GNU roff from ports or the 187 heirloom doctools roff toolchain from ports via pkg install groff or 188 via pkg install heirloom-doctools. 189 19020170524: 191 The ath(4) and ath_hal(4) modules now build piecemeal to allow for 192 smaller runtime footprint builds. This is useful for embedded systems 193 which only require one chipset support. 194 195 If you load it as a module, make sure this is in /boot/loader.conf: 196 197 if_ath_load="YES" 198 199 This will load the HAL, all chip/RF backends and if_ath_pci. 200 If you have if_ath_pci in /boot/loader.conf, ensure it is after 201 if_ath or it will not load any HAL chipset support. 202 203 If you want to selectively load things (eg on ye cheape ARM/MIPS 204 platforms where RAM is at a premium) you should: 205 206 * load ath_hal 207 * load the chip modules in question 208 * load ath_rate, ath_dfs 209 * load ath_main 210 * load if_ath_pci and/or if_ath_ahb depending upon your particular 211 bus bind type - this is where probe/attach is done. 212 213 For further comments/feedback, poke adrian@ . 214 21520170523: 216 The "ino64" 64-bit inode project has been committed, which extends 217 a number of types to 64 bits. Upgrading in place requires care and 218 adherence to the documented upgrade procedure. 219 220 If using a custom kernel configuration ensure that the 221 COMPAT_FREEBSD11 option is included (as during the upgrade the 222 system will be running the ino64 kernel with the existing world). 223 224 For the safest in-place upgrade begin by removing previous build 225 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the 226 full procedure documented below under the heading "To rebuild 227 everything and install it on the current system." Specifically, 228 a reboot is required after installing the new kernel before 229 installing world. 230 23120170424: 232 The NATM framework including the en(4), fatm(4), hatm(4), and 233 patm(4) devices has been removed. Consumers should plan a 234 migration before the end-of-life date for FreeBSD 11. 235 23620170420: 237 GNU diff has been replaced by a BSD licensed diff. Some features of GNU 238 diff has not been implemented, if those are needed a newer version of 239 GNU diff is available via the diffutils package under the gdiff name. 240 24120170413: 242 As of r316810 for ipfilter, keep frags is no longer assumed when 243 keep state is specified in a rule. r316810 aligns ipfilter with 244 documentation in man pages separating keep frags from keep state. 245 This allows keep state to be specified without forcing keep frags 246 and allows keep frags to be specified independently of keep state. 247 To maintain previous behaviour, also specify keep frags with 248 keep state (as documented in ipf.conf.5). 249 25020170407: 251 arm64 builds now use the base system LLD 4.0.0 linker by default, 252 instead of requiring that the aarch64-binutils port or package be 253 installed. To continue using aarch64-binutils, set 254 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 255 25620170405: 257 The UDP optimization in entry 20160818 that added the sysctl 258 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast 259 packets will no longer be treated as L3 broadcast packets. 260 26120170331: 262 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 263 use any explicitly assigned loopback address available in the jail 264 instead of using the first assigned address of the jail. 265 26620170329: 267 The ctl.ko module no longer implements the iSCSI target frontend: 268 cfiscsi.ko does instead. 269 270 If building cfiscsi.ko as a kernel module, the module can be loaded 271 via one of the following methods: 272 - `cfiscsi_load="YES"` in loader.conf(5). 273 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 274 - ctladm(8)/ctld(8), when compiled with iSCSI support 275 (`WITH_ISCSI=yes` in src.conf(5)) 276 277 Please see cfiscsi(4) for more details. 278 27920170316: 280 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 281 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 282 same source (previously, the dependency of mmcsd.ko on mmc.ko was 283 missing, but mmcsd.ko now will refuse to load if it is incompatible 284 with mmc.ko). 285 28620170315: 287 The syntax of ipfw(8) named states was changed to avoid ambiguity. 288 If you have used named states in the firewall rules, you need to modify 289 them after installworld and before rebooting. Now named states must 290 be prefixed with colon. 291 29220170311: 293 The old drm (sys/dev/drm/) drivers for i915 and radeon have been 294 removed as the userland we provide cannot use them. The KMS version 295 (sys/dev/drm2) supports the same hardware. 296 29720170302: 298 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 299 Please see the 20141231 entry below for information about prerequisites 300 and upgrading, if you are not already using clang 3.5.0 or higher. 301 30220170221: 303 The code that provides support for ZFS .zfs/ directory functionality 304 has been reimplemented. It's not possible now to create a snapshot 305 by mkdir under .zfs/snapshot/. That should be the only user visible 306 change. 307 30820170216: 309 EISA bus support has been removed. The WITH_EISA option is no longer 310 valid. 311 31220170215: 313 MCA bus support has been removed. 314 31520170127: 316 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed 317 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC. 318 31920170112: 320 The EM_MULTIQUEUE kernel configuration option is deprecated now that 321 the em(4) driver conforms to iflib specifications. 322 32320170109: 324 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via 325 IFLIB. If you have a custom kernel configuration that excludes em(4) 326 but you use igb(4), you need to re-add em(4) to your custom configuration. 327 32820161217: 329 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 330 Please see the 20141231 entry below for information about prerequisites 331 and upgrading, if you are not already using clang 3.5.0 or higher. 332 33320161124: 334 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 335 Please see the 20141231 entry below for information about prerequisites 336 and upgrading, if you are not already using clang 3.5.0 or higher. 337 33820161119: 339 The layout of the pmap structure has changed for powerpc to put the pmap 340 statistics at the front for all CPU variations. libkvm(3) and all tools 341 that link against it need to be recompiled. 342 34320161030: 344 isl(4) and cyapa(4) drivers now require a new driver, 345 chromebook_platform(4), to work properly on Chromebook-class hardware. 346 On other types of hardware the drivers may need to be configured using 347 device hints. Please see the corresponding manual pages for details. 348 34920161017: 350 The urtwn(4) driver was merged into rtwn(4) and now consists of 351 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific 352 parts. 353 Also, firmware for RTL8188CE was renamed due to possible name 354 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B)) 355 35620161015: 357 GNU rcs has been removed from base. It is available as packages: 358 - rcs: Latest GPLv3 GNU rcs version. 359 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was 360 removed from base. 361 36220161008: 363 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control 364 modules now requires that the kernel configuration contain the 365 TCP_HHOOK option. (This option is included in the GENERIC kernel.) 366 36720161003: 368 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired. 369 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy. 370 37120160924: 372 Relocatable object files with the extension of .So have been renamed 373 to use an extension of .pico instead. The purpose of this change is 374 to avoid a name clash with shared libraries on case-insensitive file 375 systems. On those file systems, foo.So is the same file as foo.so. 376 37720160918: 378 GNU rcs has been turned off by default. It can (temporarily) be built 379 again by adding WITH_RCS knob in src.conf. 380 Otherwise, GNU rcs is available from packages: 381 - rcs: Latest GPLv3 GNU rcs version. 382 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 383 38420160918: 385 The backup_uses_rcs functionality has been removed from rc.subr. 386 38720160908: 388 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 389 two separate components, QUEUE_MACRO_DEBUG_TRACE and 390 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 391 QUEUE_MACRO_DEBUG behavior. 392 39320160824: 394 r304787 changed some ioctl interfaces between the iSCSI userspace 395 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 396 rebuilt to work with new kernels. __FreeBSD_version has been bumped 397 to 1200005. 398 39920160818: 400 The UDP receive code has been updated to only treat incoming UDP 401 packets that were addressed to an L2 broadcast address as L3 402 broadcast packets. It is not expected that this will affect any 403 standards-conforming UDP application. The new behaviour can be 404 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 405 0. 406 40720160818: 408 Remove the openbsd_poll system call. 409 __FreeBSD_version has been bumped because of this. 410 41120160622: 412 The libc stub for the pipe(2) system call has been replaced with 413 a wrapper that calls the pipe2(2) system call and the pipe(2) 414 system call is now only implemented by the kernels that include 415 "options COMPAT_FREEBSD10" in their config file (this is the 416 default). Users should ensure that this option is enabled in 417 their kernel or upgrade userspace to r302092 before upgrading their 418 kernel. 419 42020160527: 421 CAM will now strip leading spaces from SCSI disks' serial numbers. 422 This will affect users who create UFS filesystems on SCSI disks using 423 those disk's diskid device nodes. For example, if /etc/fstab 424 previously contained a line like 425 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 426 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 427 transforms like gmirror may also be affected. ZFS users should 428 generally be fine. 429 43020160523: 431 The bitstring(3) API has been updated with new functionality and 432 improved performance. But it is binary-incompatible with the old API. 433 Objects built with the new headers may not be linked against objects 434 built with the old headers. 435 43620160520: 437 The brk and sbrk functions have been removed from libc on arm64. 438 Binutils from ports has been updated to not link to these 439 functions and should be updated to the latest version before 440 installing a new libc. 441 44220160517: 443 The armv6 port now defaults to hard float ABI. Limited support 444 for running both hardfloat and soft float on the same system 445 is available using the libraries installed with -DWITH_LIBSOFT. 446 This has only been tested as an upgrade path for installworld 447 and packages may fail or need manual intervention to run. New 448 packages will be needed. 449 450 To update an existing self-hosted armv6hf system, you must add 451 TARGET_ARCH=armv6 on the make command line for both the build 452 and the install steps. 453 45420160510: 455 Kernel modules compiled outside of a kernel build now default to 456 installing to /boot/modules instead of /boot/kernel. Many kernel 457 modules built this way (such as those in ports) already overrode 458 KMODDIR explicitly to install into /boot/modules. However, 459 manually building and installing a module from /sys/modules will 460 now install to /boot/modules instead of /boot/kernel. 461 46220160414: 463 The CAM I/O scheduler has been committed to the kernel. There should be 464 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 465 list of known rogues that claim support for this but actually corrupt 466 data is believed to be complete, be on the lookout for data 467 corruption. The known rogue list is believed to be complete: 468 469 o Crucial MX100, M550 drives with MU01 firmware. 470 o Micron M510 and M550 drives with MU01 firmware. 471 o Micron M500 prior to MU07 firmware 472 o Samsung 830, 840, and 850 all firmwares 473 o FCCT M500 all firmwares 474 475 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 476 with working NCQ TRIM. For Micron branded drives, see your sales rep for 477 updated firmware. Black listed drives will work correctly because these 478 drives work correctly so long as no NCQ TRIMs are sent to them. Given 479 this list is the same as found in Linux, it's believed there are no 480 other rogues in the market place. All other models from the above 481 vendors work. 482 483 To be safe, if you are at all concerned, you can quirk each of your 484 drives to prevent NCQ from being sent by setting: 485 kern.cam.ada.X.quirks="0x2" 486 in loader.conf. If the drive requires the 4k sector quirk, set the 487 quirks entry to 0x3. 488 48920160330: 490 The FAST_DEPEND build option has been removed and its functionality is 491 now the one true way. The old mkdep(1) style of 'make depend' has 492 been removed. See 20160311 for further details. 493 49420160317: 495 Resource range types have grown from unsigned long to uintmax_t. All 496 drivers, and anything using libdevinfo, need to be recompiled. 497 49820160311: 499 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 500 builds. It no longer runs mkdep(1) during 'make depend', and the 501 'make depend' stage can safely be skipped now as it is auto ran 502 when building 'make all' and will generate all SRCS and DPSRCS before 503 building anything else. Dependencies are gathered at compile time with 504 -MF flags kept in separate .depend files per object file. Users should 505 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 506 stale .depend files. 507 50820160306: 509 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 510 kernel modules. Therefore, if you load any kernel modules at boot time, 511 please install the boot loaders after you install the kernel, but before 512 rebooting, e.g.: 513 514 make buildworld 515 make kernel KERNCONF=YOUR_KERNEL_HERE 516 make -C sys/boot install 517 <reboot in single user> 518 519 Then follow the usual steps, described in the General Notes section, 520 below. 521 52220160305: 523 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 524 see the 20141231 entry below for information about prerequisites and 525 upgrading, if you are not already using clang 3.5.0 or higher. 526 52720160301: 528 The AIO subsystem is now a standard part of the kernel. The 529 VFS_AIO kernel option and aio.ko kernel module have been removed. 530 Due to stability concerns, asynchronous I/O requests are only 531 permitted on sockets and raw disks by default. To enable 532 asynchronous I/O requests on all file types, set the 533 vfs.aio.enable_unsafe sysctl to a non-zero value. 534 53520160226: 536 The ELF object manipulation tool objcopy is now provided by the 537 ELF Tool Chain project rather than by GNU binutils. It should be a 538 drop-in replacement, with the addition of arm64 support. The 539 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 540 to obtain the GNU version if necessary. 541 54220160129: 543 Building ZFS pools on top of zvols is prohibited by default. That 544 feature has never worked safely; it's always been prone to deadlocks. 545 Using a zvol as the backing store for a VM guest's virtual disk will 546 still work, even if the guest is using ZFS. Legacy behavior can be 547 restored by setting vfs.zfs.vol.recursive=1. 548 54920160119: 550 The NONE and HPN patches has been removed from OpenSSH. They are 551 still available in the security/openssh-portable port. 552 55320160113: 554 With the addition of ypldap(8), a new _ypldap user is now required 555 during installworld. "mergemaster -p" can be used to add the user 556 prior to installworld, as documented in the handbook. 557 55820151216: 559 The tftp loader (pxeboot) now uses the option root-path directive. As a 560 consequence it no longer looks for a pxeboot.4th file on the tftp 561 server. Instead it uses the regular /boot infrastructure as with the 562 other loaders. 563 56420151211: 565 The code to start recording plug and play data into the modules has 566 been committed. While the old tools will properly build a new kernel, 567 a number of warnings about "unknown metadata record 4" will be produced 568 for an older kldxref. To avoid such warnings, make sure to rebuild 569 the kernel toolchain (or world). Make sure that you have r292078 or 570 later when trying to build 292077 or later before rebuilding. 571 57220151207: 573 Debug data files are now built by default with 'make buildworld' and 574 installed with 'make installworld'. This facilitates debugging but 575 requires more disk space both during the build and for the installed 576 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 577 in src.conf(5). 578 57920151130: 580 r291527 changed the internal interface between the nfsd.ko and 581 nfscommon.ko modules. As such, they must both be upgraded to-gether. 582 __FreeBSD_version has been bumped because of this. 583 58420151108: 585 Add support for unicode collation strings leads to a change of 586 order of files listed by ls(1) for example. To get back to the old 587 behaviour, set LC_COLLATE environment variable to "C". 588 589 Databases administrators will need to reindex their databases given 590 collation results will be different. 591 592 Due to a bug in install(1) it is recommended to remove the ancient 593 locales before running make installworld. 594 595 rm -rf /usr/share/locale/* 596 59720151030: 598 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 599 libcrypto.so.7 or libssl.so.7 must be recompiled. 600 60120151020: 602 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 603 Kernel modules isp_2400_multi and isp_2500_multi were removed and 604 should be replaced with isp_2400 and isp_2500 modules respectively. 605 60620151017: 607 The build previously allowed using 'make -n' to not recurse into 608 sub-directories while showing what commands would be executed, and 609 'make -n -n' to recursively show commands. Now 'make -n' will recurse 610 and 'make -N' will not. 611 61220151012: 613 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 614 and etcupdate will now use this file. A custom sendmail.cf is now 615 updated via this mechanism rather than via installworld. If you had 616 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 617 want to remove the exclusion or change it to "always install". 618 /etc/mail/sendmail.cf is now managed the same way regardless of 619 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 620 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 621 62220151011: 623 Compatibility shims for legacy ATA device names have been removed. 624 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 625 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 626 environment variables, /dev/ad* and /dev/ar* symbolic links. 627 62820151006: 629 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 630 Please see the 20141231 entry below for information about prerequisites 631 and upgrading, if you are not already using clang 3.5.0 or higher. 632 63320150924: 634 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 635 and renamed from .symbols to .debug. This reduces the size requirements 636 on the boot partition or file system and provides consistency with 637 userland debug files. 638 639 When using the supported kernel installation method the 640 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 641 as is done with /boot/kernel. 642 643 Developers wishing to maintain the historical behavior of installing 644 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 645 64620150827: 647 The wireless drivers had undergone changes that remove the 'parent 648 interface' from the ifconfig -l output. The rc.d network scripts 649 used to check presence of a parent interface in the list, so old 650 scripts would fail to start wireless networking. Thus, etcupdate(3) 651 or mergemaster(8) run is required after kernel update, to update your 652 rc.d scripts in /etc. 653 65420150827: 655 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 656 These configurations are now automatically interpreted as 657 'scrub fragment reassemble'. 658 65920150817: 660 Kernel-loadable modules for the random(4) device are back. To use 661 them, the kernel must have 662 663 device random 664 options RANDOM_LOADABLE 665 666 kldload(8) can then be used to load random_fortuna.ko 667 or random_yarrow.ko. Please note that due to the indirect 668 function calls that the loadable modules need to provide, 669 the build-in variants will be slightly more efficient. 670 671 The random(4) kernel option RANDOM_DUMMY has been retired due to 672 unpopularity. It was not all that useful anyway. 673 67420150813: 675 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 676 Control over building the ELF Tool Chain tools is now provided by 677 the WITHOUT_TOOLCHAIN knob. 678 67920150810: 680 The polarity of Pulse Per Second (PPS) capture events with the 681 uart(4) driver has been corrected. Prior to this change the PPS 682 "assert" event corresponded to the trailing edge of a positive PPS 683 pulse and the "clear" event was the leading edge of the next pulse. 684 685 As the width of a PPS pulse in a typical GPS receiver is on the 686 order of 1 millisecond, most users will not notice any significant 687 difference with this change. 688 689 Anyone who has compensated for the historical polarity reversal by 690 configuring a negative offset equal to the pulse width will need to 691 remove that workaround. 692 69320150809: 694 The default group assigned to /dev/dri entries has been changed 695 from 'wheel' to 'video' with the id of '44'. If you want to have 696 access to the dri devices please add yourself to the video group 697 with: 698 699 # pw groupmod video -m $USER 700 70120150806: 702 The menu.rc and loader.rc files will now be replaced during 703 upgrades. Please migrate local changes to menu.rc.local and 704 loader.rc.local instead. 705 70620150805: 707 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 708 strings and strip have been removed. The src.conf(5) knob 709 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 710 71120150728: 712 As ZFS requires more kernel stack pages than is the default on some 713 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 714 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 715 716 Please consider using 'options KSTACK_PAGES=X' where X is greater 717 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 718 71920150706: 720 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 721 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 722 default, i.e., they will not contain "::". For example, instead 723 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 724 to have a more specific match, such as different map entries for 725 IPv6:0:0 vs IPv6:0. This change requires that configuration 726 data (including maps, files, classes, custom ruleset, etc.) must 727 use the same format, so make certain such configuration data is 728 upgrading. As a very simple check search for patterns like 729 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 730 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 731 the cf option UseCompressedIPv6Addresses. 732 73320150630: 734 The default kernel entropy-processing algorithm is now 735 Fortuna, replacing Yarrow. 736 737 Assuming you have 'device random' in your kernel config 738 file, the configurations allow a kernel option to override 739 this default. You may choose *ONE* of: 740 741 options RANDOM_YARROW # Legacy /dev/random algorithm. 742 options RANDOM_DUMMY # Blocking-only driver. 743 744 If you have neither, you get Fortuna. For most people, 745 read no further, Fortuna will give a /dev/random that works 746 like it always used to, and the difference will be irrelevant. 747 748 If you remove 'device random', you get *NO* kernel-processed 749 entropy at all. This may be acceptable to folks building 750 embedded systems, but has complications. Carry on reading, 751 and it is assumed you know what you need. 752 753 *PLEASE* read random(4) and random(9) if you are in the 754 habit of tweaking kernel configs, and/or if you are a member 755 of the embedded community, wanting specific and not-usual 756 behaviour from your security subsystems. 757 758 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 759 random', you will NOT have a functioning /dev/random, and 760 many cryptographic features will not work, including SSH. 761 You may also find strange behaviour from the random(3) set 762 of library functions, in particular sranddev(3), srandomdev(3) 763 and arc4random(3). The reason for this is that the KERN_ARND 764 sysctl only returns entropy if it thinks it has some to 765 share, and with RANDOM_DUMMY or no 'device random' this 766 will never happen. 767 76820150623: 769 An additional fix for the issue described in the 20150614 sendmail 770 entry below has been been committed in revision 284717. 771 77220150616: 773 FreeBSD's old make (fmake) has been removed from the system. It is 774 available as the devel/fmake port or via pkg install fmake. 775 77620150615: 777 The fix for the issue described in the 20150614 sendmail entry 778 below has been been committed in revision 284436. The work 779 around described in that entry is no longer needed unless the 780 default setting is overridden by a confDH_PARAMETERS configuration 781 setting of '5' or pointing to a 512 bit DH parameter file. 782 78320150614: 784 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 785 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 786 and devel/kyua to version 0.20+ and adjust any calling code to work 787 with Kyuafile and kyua. 788 78920150614: 790 The import of openssl to address the FreeBSD-SA-15:10.openssl 791 security advisory includes a change which rejects handshakes 792 with DH parameters below 768 bits. sendmail releases prior 793 to 8.15.2 (not yet released), defaulted to a 512 bit 794 DH parameter setting for client connections. To work around 795 this interoperability, sendmail can be configured to use a 796 2048 bit DH parameter by: 797 798 1. Edit /etc/mail/`hostname`.mc 799 2. If a setting for confDH_PARAMETERS does not exist or 800 exists and is set to a string beginning with '5', 801 replace it with '2'. 802 3. If a setting for confDH_PARAMETERS exists and is set to 803 a file path, create a new file with: 804 openssl dhparam -out /path/to/file 2048 805 4. Rebuild the .cf file: 806 cd /etc/mail/; make; make install 807 5. Restart sendmail: 808 cd /etc/mail/; make restart 809 810 A sendmail patch is coming, at which time this file will be 811 updated. 812 81320150604: 814 Generation of legacy formatted entries have been disabled by default 815 in pwd_mkdb(8), as all base system consumers of the legacy formatted 816 entries were converted to use the new format by default when the new, 817 machine independent format have been added and supported since FreeBSD 818 5.x. 819 820 Please see the pwd_mkdb(8) manual page for further details. 821 82220150525: 823 Clang and llvm have been upgraded to 3.6.1 release. Please see the 824 20141231 entry below for information about prerequisites and upgrading, 825 if you are not already using 3.5.0 or higher. 826 82720150521: 828 TI platform code switched to using vendor DTS files and this update 829 may break existing systems running on Beaglebone, Beaglebone Black, 830 and Pandaboard: 831 832 - dtb files should be regenerated/reinstalled. Filenames are the 833 same but content is different now 834 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 835 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 836 addressing scheme is now pin 25 on /dev/gpioc3. 837 - Pandaboard: /etc/ttys should be updated, serial console device is 838 now /dev/ttyu2, not /dev/ttyu0 839 84020150501: 841 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 842 If you need the GNU extension from groff soelim(1), install groff 843 from package: pkg install groff, or via ports: textproc/groff. 844 84520150423: 846 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 847 defined in symlink(7); previously symlinks were silently ignored. 848 84920150415: 850 The const qualifier has been removed from iconv(3) to comply with 851 POSIX. The ports tree is aware of this from r384038 onwards. 852 85320150416: 854 Libraries specified by LIBADD in Makefiles must have a corresponding 855 DPADD_<lib> variable to ensure correct dependencies. This is now 856 enforced in src.libnames.mk. 857 85820150324: 859 From legacy ata(4) driver was removed support for SATA controllers 860 supported by more functional drivers ahci(4), siis(4) and mvs(4). 861 Kernel modules ataahci and ataadaptec were removed completely, 862 replaced by ahci and mvs modules respectively. 863 86420150315: 865 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 866 the 20141231 entry below for information about prerequisites and 867 upgrading, if you are not already using 3.5.0 or higher. 868 86920150307: 870 The 32-bit PowerPC kernel has been changed to a position-independent 871 executable. This can only be booted with a version of loader(8) 872 newer than January 31, 2015, so make sure to update both world and 873 kernel before rebooting. 874 87520150217: 876 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 877 but before r278950, the RNG was not seeded properly. Immediately 878 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 879 ssh keys or openssl keys) that were generated w/ a kernel from that 880 range. This does not affect programs that directly used /dev/random 881 or /dev/urandom. All userland uses of arc4random(3) are affected. 882 88320150210: 884 The autofs(4) ABI was changed in order to restore binary compatibility 885 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 886 with the new kernel. 887 88820150131: 889 The powerpc64 kernel has been changed to a position-independent 890 executable. This can only be booted with a new version of loader(8), 891 so make sure to update both world and kernel before rebooting. 892 89320150118: 894 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 895 only release, no new features have been added. Please see the 20141231 896 entry below for information about prerequisites and upgrading, if you 897 are not already using 3.5.0. 898 89920150107: 900 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 901 taken from the ELF Tool Chain project rather than GNU binutils. They 902 should be drop-in replacements, with the addition of arm64 support. 903 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 904 binutils tools, if necessary. See 20150805 for updated information. 905 90620150105: 907 The default Unbound configuration now enables remote control 908 using a local socket. Users who have already enabled the 909 local_unbound service should regenerate their configuration 910 by running "service local_unbound setup" as root. 911 91220150102: 913 The GNU texinfo and GNU info pages have been removed. 914 To be able to view GNU info pages please install texinfo from ports. 915 91620141231: 917 Clang, llvm and lldb have been upgraded to 3.5.0 release. 918 919 As of this release, a prerequisite for building clang, llvm and lldb is 920 a C++11 capable compiler and C++11 standard library. This means that to 921 be able to successfully build the cross-tools stage of buildworld, with 922 clang as the bootstrap compiler, your system compiler or cross compiler 923 should either be clang 3.3 or later, or gcc 4.8 or later, and your 924 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 925 later. 926 927 On any standard FreeBSD 10.x or 11.x installation, where clang and 928 libc++ are on by default (that is, on x86 or arm), this should work out 929 of the box. 930 931 On 9.x installations where clang is enabled by default, e.g. on x86 and 932 powerpc, libc++ will not be enabled by default, so libc++ should be 933 built (with clang) and installed first. If both clang and libc++ are 934 missing, build clang first, then use it to build libc++. 935 936 On 8.x and earlier installations, upgrade to 9.x first, and then follow 937 the instructions for 9.x above. 938 939 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 940 default, and do not build clang. 941 942 Many embedded systems are resource constrained, and will not be able to 943 build clang in a reasonable time, or in some cases at all. In those 944 cases, cross building bootable systems on amd64 is a workaround. 945 946 This new version of clang introduces a number of new warnings, of which 947 the following are most likely to appear: 948 949 -Wabsolute-value 950 951 This warns in two cases, for both C and C++: 952 * When the code is trying to take the absolute value of an unsigned 953 quantity, which is effectively a no-op, and almost never what was 954 intended. The code should be fixed, if at all possible. If you are 955 sure that the unsigned quantity can be safely cast to signed, without 956 loss of information or undefined behavior, you can add an explicit 957 cast, or disable the warning. 958 959 * When the code is trying to take an absolute value, but the called 960 abs() variant is for the wrong type, which can lead to truncation. 961 If you want to disable the warning instead of fixing the code, please 962 make sure that truncation will not occur, or it might lead to unwanted 963 side-effects. 964 965 -Wtautological-undefined-compare and 966 -Wundefined-bool-conversion 967 968 These warn when C++ code is trying to compare 'this' against NULL, while 969 'this' should never be NULL in well-defined C++ code. However, there is 970 some legacy (pre C++11) code out there, which actively abuses this 971 feature, which was less strictly defined in previous C++ versions. 972 973 Squid and openjdk do this, for example. The warning can be turned off 974 for C++98 and earlier, but compiling the code in C++11 mode might result 975 in unexpected behavior; for example, the parts of the program that are 976 unreachable could be optimized away. 977 97820141222: 979 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 980 kernel sources have been removed. The .h files remain, since some 981 utilities include them. This will need to be fixed later. 982 If "mount -t oldnfs ..." is attempted, it will fail. 983 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 984 the utilities will report errors. 985 98620141121: 987 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 988 directories to top level SUBDIR variable when their parent 989 directory is included in LOCAL_DIRS. Users with build systems with 990 such hierarchies and without SUBDIR entries in the parent 991 directory Makefiles should add them or add the directories to 992 LOCAL_DIRS. 993 99420141109: 995 faith(4) and faithd(8) have been removed from the base system. Faith 996 has been obsolete for a very long time. 997 99820141104: 999 vt(4), the new console driver, is enabled by default. It brings 1000 support for Unicode and double-width characters, as well as 1001 support for UEFI and integration with the KMS kernel video 1002 drivers. 1003 1004 You may need to update your console settings in /etc/rc.conf, 1005 most probably the keymap. During boot, /etc/rc.d/syscons will 1006 indicate what you need to do. 1007 1008 vt(4) still has issues and lacks some features compared to 1009 syscons(4). See the wiki for up-to-date information: 1010 https://wiki.freebsd.org/Newcons 1011 1012 If you want to keep using syscons(4), you can do so by adding 1013 the following line to /boot/loader.conf: 1014 kern.vty=sc 1015 101620141102: 1017 pjdfstest has been integrated into kyua as an opt-in test suite. 1018 Please see share/doc/pjdfstest/README for more details on how to 1019 execute it. 1020 102120141009: 1022 gperf has been removed from the base system for architectures 1023 that use clang. Ports that require gperf will obtain it from the 1024 devel/gperf port. 1025 102620140923: 1027 pjdfstest has been moved from tools/regression/pjdfstest to 1028 contrib/pjdfstest . 1029 103020140922: 1031 At svn r271982, The default linux compat kernel ABI has been adjusted 1032 to 2.6.18 in support of the linux-c6 compat ports infrastructure 1033 update. If you wish to continue using the linux-f10 compat ports, 1034 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 1035 encouraged to update their linux-compat packages to linux-c6 during 1036 their next update cycle. 1037 103820140729: 1039 The ofwfb driver, used to provide a graphics console on PowerPC when 1040 using vt(4), no longer allows mmap() of all physical memory. This 1041 will prevent Xorg on PowerPC with some ATI graphics cards from 1042 initializing properly unless x11-servers/xorg-server is updated to 1043 1.12.4_8 or newer. 1044 104520140723: 1046 The xdev targets have been converted to using TARGET and 1047 TARGET_ARCH instead of XDEV and XDEV_ARCH. 1048 104920140719: 1050 The default unbound configuration has been modified to address 1051 issues with reverse lookups on networks that use private 1052 address ranges. If you use the local_unbound service, run 1053 "service local_unbound setup" as root to regenerate your 1054 configuration, then "service local_unbound reload" to load the 1055 new configuration. 1056 105720140709: 1058 The GNU texinfo and GNU info pages are not built and installed 1059 anymore, WITH_INFO knob has been added to allow to built and install 1060 them again. 1061 UPDATE: see 20150102 entry on texinfo's removal 1062 106320140708: 1064 The GNU readline library is now an INTERNALLIB - that is, it is 1065 statically linked into consumers (GDB and variants) in the base 1066 system, and the shared library is no longer installed. The 1067 devel/readline port is available for third party software that 1068 requires readline. 1069 107020140702: 1071 The Itanium architecture (ia64) has been removed from the list of 1072 known architectures. This is the first step in the removal of the 1073 architecture. 1074 107520140701: 1076 Commit r268115 has added NFSv4.1 server support, merged from 1077 projects/nfsv4.1-server. Since this includes changes to the 1078 internal interfaces between the NFS related modules, a full 1079 build of the kernel and modules will be necessary. 1080 __FreeBSD_version has been bumped. 1081 108220140629: 1083 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 1084 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 1085 which differs from the behaviour controlled by this knob.) 1086 108720140619: 1088 Maximal length of the serial number in CTL was increased from 16 to 1089 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 1090 and ctld, need to be rebuilt to work with a new kernel. 1091 109220140606: 1093 The libatf-c and libatf-c++ major versions were downgraded to 0 and 1094 1 respectively to match the upstream numbers. They were out of 1095 sync because, when they were originally added to FreeBSD, the 1096 upstream versions were not respected. These libraries are private 1097 and not yet built by default, so renumbering them should be a 1098 non-issue. However, unclean source trees will yield broken test 1099 programs once the operator executes "make delete-old-libs" after a 1100 "make installworld". 1101 1102 Additionally, the atf-sh binary was made private by moving it into 1103 /usr/libexec/. Already-built shell test programs will keep the 1104 path to the old binary so they will break after "make delete-old" 1105 is run. 1106 1107 If you are using WITH_TESTS=yes (not the default), wipe the object 1108 tree and rebuild from scratch to prevent spurious test failures. 1109 This is only needed once: the misnumbered libraries and misplaced 1110 binaries have been added to OptionalObsoleteFiles.inc so they will 1111 be removed during a clean upgrade. 1112 111320140512: 1114 Clang and llvm have been upgraded to 3.4.1 release. 1115 111620140508: 1117 We bogusly installed src.opts.mk in /usr/share/mk. This file should 1118 be removed to avoid issues in the future (and has been added to 1119 ObsoleteFiles.inc). 1120 112120140505: 1122 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 1123 past, it affected all builds that used the bsd.*.mk files. The old 1124 behavior was a bug, but people may have relied upon it. To get this 1125 behavior back, you can .include /etc/src.conf from /etc/make.conf 1126 (which is still global and isn't changed). This also changes the 1127 behavior of incremental builds inside the tree of individual 1128 directories. Set MAKESYSPATH to ".../share/mk" to do that. 1129 Although this has survived make universe and some upgrade scenarios, 1130 other upgrade scenarios may have broken. At least one form of 1131 temporary breakage was fixed with MAKESYSPATH settings for buildworld 1132 as well... In cases where MAKESYSPATH isn't working with this 1133 setting, you'll need to set it to the full path to your tree. 1134 1135 One side effect of all this cleaning up is that bsd.compiler.mk 1136 is no longer implicitly included by bsd.own.mk. If you wish to 1137 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 1138 as well. 1139 114020140430: 1141 The lindev device has been removed since /dev/full has been made a 1142 standard device. __FreeBSD_version has been bumped. 1143 114420140424: 1145 The knob WITHOUT_VI was added to the base system, which controls 1146 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 1147 in order to reorder files share/termcap and didn't build ex(1) as a 1148 build tool, so building/installing with WITH_VI is highly advised for 1149 build hosts for older releases. 1150 1151 This issue has been fixed in stable/9 and stable/10 in r277022 and 1152 r276991, respectively. 1153 115420140418: 1155 The YES_HESIOD knob has been removed. It has been obsolete for 1156 a decade. Please move to using WITH_HESIOD instead or your builds 1157 will silently lack HESIOD. 1158 115920140405: 1160 The uart(4) driver has been changed with respect to its handling 1161 of the low-level console. Previously the uart(4) driver prevented 1162 any process from changing the baudrate or the CLOCAL and HUPCL 1163 control flags. By removing the restrictions, operators can make 1164 changes to the serial console port without having to reboot. 1165 However, when getty(8) is started on the serial device that is 1166 associated with the low-level console, a misconfigured terminal 1167 line in /etc/ttys will now have a real impact. 1168 Before upgrading the kernel, make sure that /etc/ttys has the 1169 serial console device configured as 3wire without baudrate to 1170 preserve the previous behaviour. E.g: 1171 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 1172 117320140306: 1174 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 1175 to improve performance. To re-enable it, if needed, run rpcbind 1176 with command line option -W. 1177 117820140226: 1179 Switched back to the GPL dtc compiler due to updates in the upstream 1180 dts files not being supported by the BSDL dtc compiler. You will need 1181 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 1182 may result while building dtb files during a kernel build if you fail 1183 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 1184 118520140216: 1186 Clang and llvm have been upgraded to 3.4 release. 1187 118820140216: 1189 The nve(4) driver has been removed. Please use the nfe(4) driver 1190 for NVIDIA nForce MCP Ethernet adapters instead. 1191 119220140212: 1193 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 1194 This could cause certain C++ applications using shared libraries built 1195 against the previous version of libc++ to crash. The incompatibility 1196 has now been fixed, but any C++ applications or shared libraries built 1197 between r261283 and r261801 should be recompiled. 1198 119920140204: 1200 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 1201 capability mode support. Please note that enabling the feature in 1202 kernel is still highly recommended. 1203 120420140131: 1205 OpenSSH is now built with sandbox support, and will use sandbox as 1206 the default privilege separation method. This requires Capsicum 1207 capability mode support in kernel. 1208 120920140128: 1210 The libelf and libdwarf libraries have been updated to newer 1211 versions from upstream. Shared library version numbers for 1212 these two libraries were bumped. Any ports or binaries 1213 requiring these two libraries should be recompiled. 1214 __FreeBSD_version is bumped to 1100006. 1215 121620140110: 1217 If a Makefile in a tests/ directory was auto-generating a Kyuafile 1218 instead of providing an explicit one, this would prevent such 1219 Makefile from providing its own Kyuafile in the future during 1220 NO_CLEAN builds. This has been fixed in the Makefiles but manual 1221 intervention is needed to clean an objdir if you use NO_CLEAN: 1222 # find /usr/obj -name Kyuafile | xargs rm -f 1223 122420131213: 1225 The behavior of gss_pseudo_random() for the krb5 mechanism 1226 has changed, for applications requesting a longer random string 1227 than produced by the underlying enctype's pseudo-random() function. 1228 In particular, the random string produced from a session key of 1229 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 1230 be different at the 17th octet and later, after this change. 1231 The counter used in the PRF+ construction is now encoded as a 1232 big-endian integer in accordance with RFC 4402. 1233 __FreeBSD_version is bumped to 1100004. 1234 123520131108: 1236 The WITHOUT_ATF build knob has been removed and its functionality 1237 has been subsumed into the more generic WITHOUT_TESTS. If you were 1238 using the former to disable the build of the ATF libraries, you 1239 should change your settings to use the latter. 1240 124120131025: 1242 The default version of mtree is nmtree which is obtained from 1243 NetBSD. The output is generally the same, but may vary 1244 slightly. If you found you need identical output adding 1245 "-F freebsd9" to the command line should do the trick. For the 1246 time being, the old mtree is available as fmtree. 1247 124820131014: 1249 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 1250 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 1251 1.1.4_8 and verify bsdyml not linked in, before running "make 1252 delete-old-libs": 1253 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 1254 or 1255 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 1256 125720131010: 1258 The stable/10 branch has been created in subversion from head 1259 revision r256279. 1260 126120131010: 1262 The rc.d/jail script has been updated to support jail(8) 1263 configuration file. The "jail_<jname>_*" rc.conf(5) variables 1264 for per-jail configuration are automatically converted to 1265 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 1266 This is transparently backward compatible. See below about some 1267 incompatibilities and rc.conf(5) manual page for more details. 1268 1269 These variables are now deprecated in favor of jail(8) configuration 1270 file. One can use "rc.d/jail config <jname>" command to generate 1271 a jail(8) configuration file in /var/run/jail.<jname>.conf without 1272 running the jail(8) utility. The default pathname of the 1273 configuration file is /etc/jail.conf and can be specified by 1274 using $jail_conf or $jail_<jname>_conf variables. 1275 1276 Please note that jail_devfs_ruleset accepts an integer at 1277 this moment. Please consider to rewrite the ruleset name 1278 with an integer. 1279 128020130930: 1281 BIND has been removed from the base system. If all you need 1282 is a local resolver, simply enable and start the local_unbound 1283 service instead. Otherwise, several versions of BIND are 1284 available in the ports tree. The dns/bind99 port is one example. 1285 1286 With this change, nslookup(1) and dig(1) are no longer in the base 1287 system. Users should instead use host(1) and drill(1) which are 1288 in the base system. Alternatively, nslookup and dig can 1289 be obtained by installing the dns/bind-tools port. 1290 129120130916: 1292 With the addition of unbound(8), a new unbound user is now 1293 required during installworld. "mergemaster -p" can be used to 1294 add the user prior to installworld, as documented in the handbook. 1295 129620130911: 1297 OpenSSH is now built with DNSSEC support, and will by default 1298 silently trust signed SSHFP records. This can be controlled with 1299 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1300 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1301 130220130906: 1303 The GNU Compiler Collection and C++ standard library (libstdc++) 1304 are no longer built by default on platforms where clang is the system 1305 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1306 options in src.conf. 1307 130820130905: 1309 The PROCDESC kernel option is now part of the GENERIC kernel 1310 configuration and is required for the rwhod(8) to work. 1311 If you are using custom kernel configuration, you should include 1312 'options PROCDESC'. 1313 131420130905: 1315 The API and ABI related to the Capsicum framework was modified 1316 in backward incompatible way. The userland libraries and programs 1317 have to be recompiled to work with the new kernel. This includes the 1318 following libraries and programs, but the whole buildworld is 1319 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1320 kdump, procstat, rwho, rwhod, uniq. 1321 132220130903: 1323 AES-NI intrinsic support has been added to gcc. The AES-NI module 1324 has been updated to use this support. A new gcc is required to build 1325 the aesni module on both i386 and amd64. 1326 132720130821: 1328 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1329 Thus "device padlock_rng" and "device rdrand_rng" should be 1330 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1331 133220130813: 1333 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1334 enables just the iconv* functionality and is now on by default. 1335 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1336 compatibility. Set WITHOUT_ICONV to build the old way. 1337 If you have been using WITH_ICONV before, you will very likely 1338 need to turn on WITH_LIBICONV_COMPAT. 1339 134020130806: 1341 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1342 Illumos origin, including ZFS. If you have INVARIANTS in your 1343 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1344 explicitly. 1345 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1346 locks if WITNESS option was set. Because that generated a lot of 1347 witness(9) reports and all of them were believed to be false 1348 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1349 can be used to achieve the previous behavior. 1350 135120130806: 1352 Timer values in IPv6 data structures now use time_uptime instead 1353 of time_second. Although this is not a user-visible functional 1354 change, userland utilities which directly use them---ndp(8), 1355 rtadvd(8), and rtsold(8) in the base system---need to be updated 1356 to r253970 or later. 1357 135820130802: 1359 find -delete can now delete the pathnames given as arguments, 1360 instead of only files found below them or if the pathname did 1361 not contain any slashes. Formerly, the following error message 1362 would result: 1363 1364 find: -delete: <path>: relative path potentially not safe 1365 1366 Deleting the pathnames given as arguments can be prevented 1367 without error messages using -mindepth 1 or by changing 1368 directory and passing "." as argument to find. This works in the 1369 old as well as the new version of find. 1370 137120130726: 1372 Behavior of devfs rules path matching has been changed. 1373 Pattern is now always matched against fully qualified devfs 1374 path and slash characters must be explicitly matched by 1375 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1376 subdirectories must be reviewed. 1377 137820130716: 1379 The default ARM ABI has changed to the ARM EABI. The old ABI is 1380 incompatible with the ARM EABI and all programs and modules will 1381 need to be rebuilt to work with a new kernel. 1382 1383 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1384 1385 NOTE: Support for the old ABI will be removed in the future and 1386 users are advised to upgrade. 1387 138820130709: 1389 pkg_install has been disconnected from the build if you really need it 1390 you should add WITH_PKGTOOLS in your src.conf(5). 1391 139220130709: 1393 Most of network statistics structures were changed to be able 1394 keep 64-bits counters. Thus all tools, that work with networking 1395 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1396 139720130618: 1398 Fix a bug that allowed a tracing process (e.g. gdb) to write 1399 to a memory-mapped file in the traced process's address space 1400 even if neither the traced process nor the tracing process had 1401 write access to that file. 1402 140320130615: 1404 CVS has been removed from the base system. An exact copy 1405 of the code is available from the devel/cvs port. 1406 140720130613: 1408 Some people report the following error after the switch to bmake: 1409 1410 make: illegal option -- J 1411 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1412 ... 1413 *** [buildworld] Error code 2 1414 1415 this likely due to an old instance of make in 1416 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1417 which src/Makefile will use that blindly, if it exists, so if 1418 you see the above error: 1419 1420 rm -rf `make -V MAKEPATH` 1421 1422 should resolve it. 1423 142420130516: 1425 Use bmake by default. 1426 Whereas before one could choose to build with bmake via 1427 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1428 make. The goal is to remove these knobs for 10-RELEASE. 1429 1430 It is worth noting that bmake (like gmake) treats the command 1431 line as the unit of failure, rather than statements within the 1432 command line. Thus '(cd some/where && dosomething)' is safer 1433 than 'cd some/where; dosomething'. The '()' allows consistent 1434 behavior in parallel build. 1435 143620130429: 1437 Fix a bug that allows NFS clients to issue READDIR on files. 1438 143920130426: 1440 The WITHOUT_IDEA option has been removed because 1441 the IDEA patent expired. 1442 144320130426: 1444 The sysctl which controls TRIM support under ZFS has been renamed 1445 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1446 enabled by default. 1447 144820130425: 1449 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1450 rather than creating it's own in the temporary directory in 1451 order allow access to bootstrapped versions of tools such as 1452 install and mtree. When upgrading from version of FreeBSD where 1453 the install command does not support -l, you will need to 1454 install a new mergemaster command if mergemaster -p is required. 1455 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1456 && make install). 1457 145820130404: 1459 Legacy ATA stack, disabled and replaced by new CAM-based one since 1460 FreeBSD 9.0, completely removed from the sources. Kernel modules 1461 atadisk and atapi*, user-level tools atacontrol and burncd are 1462 removed. Kernel option `options ATA_CAM` is now permanently enabled 1463 and removed. 1464 146520130319: 1466 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1467 and socketpair(2). Software, in particular Kerberos, may 1468 automatically detect and use these during building. The resulting 1469 binaries will not work on older kernels. 1470 147120130308: 1472 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1473 information, see the respective 20130304 entry). 1474 147520130304: 1476 Recent commits to callout(9) changed the size of struct callout, 1477 so the KBI is probably heavily disturbed. Also, some functions 1478 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1479 by macros. Every kernel module using it won't load, so rebuild 1480 is requested. 1481 1482 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1483 but does not initialize by default (because of the new CTL_DISABLE 1484 option) to save memory. To re-enable it, remove the CTL_DISABLE 1485 option from the kernel config file or set kern.cam.ctl.disable=0 1486 in /boot/loader.conf. 1487 148820130301: 1489 The ctl device has been disabled in GENERIC for i386 and amd64. 1490 This was done due to the extra memory being allocated at system 1491 initialisation time by the ctl driver which was only used if 1492 a CAM target device was created. This makes a FreeBSD system 1493 unusable on 128MB or less of RAM. 1494 149520130208: 1496 A new compression method (lz4) has been merged to -HEAD. Please 1497 refer to zpool-features(7) for more information. 1498 1499 Please refer to the "ZFS notes" section of this file for information 1500 on upgrading boot ZFS pools. 1501 150220130129: 1503 A BSD-licensed patch(1) variant has been added and is installed 1504 as bsdpatch, being the GNU version the default patch. 1505 To inverse the logic and use the BSD-licensed one as default, 1506 while having the GNU version installed as gnupatch, rebuild 1507 and install world with the WITH_BSD_PATCH knob set. 1508 150920130121: 1510 Due to the use of the new -l option to install(1) during build 1511 and install, you must take care not to directly set the INSTALL 1512 make variable in your /etc/make.conf, /etc/src.conf, or on the 1513 command line. If you wish to use the -C flag for all installs 1514 you may be able to add INSTALL+=-C to /etc/make.conf or 1515 /etc/src.conf. 1516 151720130118: 1518 The install(1) option -M has changed meaning and now takes an 1519 argument that is a file or path to append logs to. In the 1520 unlikely event that -M was the last option on the command line 1521 and the command line contained at least two files and a target 1522 directory the first file will have logs appended to it. The -M 1523 option served little practical purpose in the last decade so its 1524 use is expected to be extremely rare. 1525 152620121223: 1527 After switching to Clang as the default compiler some users of ZFS 1528 on i386 systems started to experience stack overflow kernel panics. 1529 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1530 153120121222: 1532 GEOM_LABEL now mangles label names read from file system metadata. 1533 Mangling affect labels containing spaces, non-printable characters, 1534 '%' or '"'. Device names in /etc/fstab and other places may need to 1535 be updated. 1536 153720121217: 1538 By default, only the 10 most recent kernel dumps will be saved. To 1539 restore the previous behaviour (no limit on the number of kernel dumps 1540 stored in the dump directory) add the following line to /etc/rc.conf: 1541 1542 savecore_flags="" 1543 154420121201: 1545 With the addition of auditdistd(8), a new auditdistd user is now 1546 required during installworld. "mergemaster -p" can be used to 1547 add the user prior to installworld, as documented in the handbook. 1548 154920121117: 1550 The sin6_scope_id member variable in struct sockaddr_in6 is now 1551 filled by the kernel before passing the structure to the userland via 1552 sysctl or routing socket. This means the KAME-specific embedded scope 1553 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1554 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1555 __FreeBSD_version is bumped to 1000025. 1556 155720121105: 1558 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1559 This means that the world and kernel will be compiled with clang 1560 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1561 and /usr/bin/cpp. To disable this behavior and revert to building 1562 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1563 of current may need to bootstrap WITHOUT_CLANG first if the clang 1564 build fails (its compatibility window doesn't extend to the 9 stable 1565 branch point). 1566 156720121102: 1568 The IPFIREWALL_FORWARD kernel option has been removed. Its 1569 functionality now turned on by default. 1570 157120121023: 1572 The ZERO_COPY_SOCKET kernel option has been removed and 1573 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1574 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1575 mechanism which is not safe and may result in kernel crashes. 1576 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1577 driver supports disposeable external page sized mbuf storage. 1578 Proper replacements for both zero-copy mechanisms are under 1579 consideration and will eventually lead to complete removal 1580 of the two kernel options. 1581 158220121023: 1583 The IPv4 network stack has been converted to network byte 1584 order. The following modules need to be recompiled together 1585 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1586 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1587 158820121022: 1589 Support for non-MPSAFE filesystems was removed from VFS. The 1590 VFS_VERSION was bumped, all filesystem modules shall be 1591 recompiled. 1592 159320121018: 1594 All the non-MPSAFE filesystems have been disconnected from 1595 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1596 portalfs, smbfs, xfs. 1597 159820121016: 1599 The interface cloning API and ABI has changed. The following 1600 modules need to be recompiled together with kernel: 1601 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1602 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1603 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1604 160520121015: 1606 The sdhci driver was split in two parts: sdhci (generic SD Host 1607 Controller logic) and sdhci_pci (actual hardware driver). 1608 No kernel config modifications are required, but if you 1609 load sdhc as a module you must switch to sdhci_pci instead. 1610 161120121014: 1612 Import the FUSE kernel and userland support into base system. 1613 161420121013: 1615 The GNU sort(1) program has been removed since the BSD-licensed 1616 sort(1) has been the default for quite some time and no serious 1617 problems have been reported. The corresponding WITH_GNU_SORT 1618 knob has also gone. 1619 162020121006: 1621 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1622 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1623 with new kernel. 1624 162520121001: 1626 The net80211(4) ABI has been changed to allow for improved driver 1627 PS-POLL and power-save support. All wireless drivers need to be 1628 recompiled to work with the new kernel. 1629 163020120913: 1631 The random(4) support for the VIA hardware random number 1632 generator (`PADLOCK') is no longer enabled unconditionally. 1633 Add the padlock_rng device in the custom kernel config if 1634 needed. The GENERIC kernels on i386 and amd64 do include the 1635 device, so the change only affects the custom kernel 1636 configurations. 1637 163820120908: 1639 The pf(4) packet filter ABI has been changed. pfctl(8) and 1640 snmp_pf module need to be recompiled to work with new kernel. 1641 164220120828: 1643 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1644 to -HEAD. Pools that have empty_bpobj in active state can not be 1645 imported read-write with ZFS implementations that do not support 1646 this feature. For more information read the zpool-features(5) 1647 manual page. 1648 164920120727: 1650 The sparc64 ZFS loader has been changed to no longer try to auto- 1651 detect ZFS providers based on diskN aliases but now requires these 1652 to be explicitly listed in the OFW boot-device environment variable. 1653 165420120712: 1655 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1656 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1657 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1658 165920120712: 1660 The following sysctls and tunables have been renamed for consistency 1661 with other variables: 1662 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1663 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1664 166520120628: 1666 The sort utility has been replaced with BSD sort. For now, GNU sort 1667 is also available as "gnusort" or the default can be set back to 1668 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1669 installed as "bsdsort". 1670 167120120611: 1672 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1673 Starting with this version the old system of ZFS pool versioning 1674 is superseded by "feature flags". This concept enables forward 1675 compatibility against certain future changes in functionality of ZFS 1676 pools. The first read-only compatible "feature flag" for ZFS pools 1677 is named "com.delphix:async_destroy". For more information 1678 read the new zpool-features(5) manual page. 1679 Please refer to the "ZFS notes" section of this file for information 1680 on upgrading boot ZFS pools. 1681 168220120417: 1683 The malloc(3) implementation embedded in libc now uses sources imported 1684 as contrib/jemalloc. The most disruptive API change is to 1685 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1686 delete it prior to installworld, and optionally re-create it using the 1687 new format after rebooting. See malloc.conf(5) for details 1688 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1689 NAMESPACE section). 1690 169120120328: 1692 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1693 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1694 now spelled mips. This is to aid compatibility with third-party 1695 software that expects this naming scheme in uname(3). Little-endian 1696 settings are unchanged. If you are updating a big-endian mips64 machine 1697 from before this change, you may need to set MACHINE_ARCH=mips64 in 1698 your environment before the new build system will recognize your machine. 1699 170020120306: 1701 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1702 platforms. 1703 170420120229: 1705 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1706 nullfs(5) did not pass through all behaviours to the underlying layer, 1707 as a result if we bound to a socket on the lower layer we could connect 1708 only to the lower path; if we bound to the upper layer we could connect 1709 only to the upper path. The new behavior is one can connect to both the 1710 lower and the upper paths regardless what layer path one binds to. 1711 171220120211: 1713 The getifaddrs upgrade path broken with 20111215 has been restored. 1714 If you have upgraded in between 20111215 and 20120209 you need to 1715 recompile libc again with your kernel. You still need to recompile 1716 world to be able to configure CARP but this restriction already 1717 comes from 20111215. 1718 171920120114: 1720 The set_rcvar() function has been removed from /etc/rc.subr. All 1721 base and ports rc.d scripts have been updated, so if you have a 1722 port installed with a script in /usr/local/etc/rc.d you can either 1723 hand-edit the rcvar= line, or reinstall the port. 1724 1725 An easy way to handle the mass-update of /etc/rc.d: 1726 rm /etc/rc.d/* && mergemaster -i 1727 172820120109: 1729 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1730 on the current CPU and prevents other threads from running. 1731 This behavior can be reverted using the kern.stop_scheduler_on_panic 1732 tunable/sysctl. 1733 The new behavior can be incompatible with kern.sync_on_panic. 1734 173520111215: 1736 The carp(4) facility has been changed significantly. Configuration 1737 of the CARP protocol via ifconfig(8) has changed, as well as format 1738 of CARP events submitted to devd(8) has changed. See manual pages 1739 for more information. The arpbalance feature of carp(4) is currently 1740 not supported anymore. 1741 1742 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1743 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1744 need to be recompiled. 1745 174620111122: 1747 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1748 /dev/wmistat0. 1749 175020111108: 1751 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1752 explicitely support non-MPSAFE filesystems. 1753 It is on by default for all supported platform at this present 1754 time. 1755 175620111101: 1757 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1758 i386 and pc98 GENERIC kernel configuration files. 1759 176020110930: 1761 sysinstall has been removed 1762 176320110923: 1764 The stable/9 branch created in subversion. This corresponds to the 1765 RELENG_9 branch in CVS. 1766 1767COMMON ITEMS: 1768 1769 General Notes 1770 ------------- 1771 Avoid using make -j when upgrading. While generally safe, there are 1772 sometimes problems using -j to upgrade. If your upgrade fails with 1773 -j, please try again without -j. From time to time in the past there 1774 have been problems using -j with buildworld and/or installworld. This 1775 is especially true when upgrading between "distant" versions (eg one 1776 that cross a major release boundary or several minor releases, or when 1777 several months have passed on the -current branch). 1778 1779 Sometimes, obscure build problems are the result of environment 1780 poisoning. This can happen because the make utility reads its 1781 environment when searching for values for global variables. To run 1782 your build attempts in an "environmental clean room", prefix all make 1783 commands with 'env -i '. See the env(1) manual page for more details. 1784 1785 When upgrading from one major version to another it is generally best to 1786 upgrade to the latest code in the currently installed branch first, then 1787 do an upgrade to the new branch. This is the best-tested upgrade path, 1788 and has the highest probability of being successful. Please try this 1789 approach if you encounter problems with a major version upgrade. Since 1790 the stable 4.x branch point, one has generally been able to upgade from 1791 anywhere in the most recent stable branch to head / current (or even the 1792 last couple of stable branches). See the top of this file when there's 1793 an exception. 1794 1795 When upgrading a live system, having a root shell around before 1796 installing anything can help undo problems. Not having a root shell 1797 around can lead to problems if pam has changed too much from your 1798 starting point to allow continued authentication after the upgrade. 1799 1800 This file should be read as a log of events. When a later event changes 1801 information of a prior event, the prior event should not be deleted. 1802 Instead, a pointer to the entry with the new information should be 1803 placed in the old entry. Readers of this file should also sanity check 1804 older entries before relying on them blindly. Authors of new entries 1805 should write them with this in mind. 1806 1807 ZFS notes 1808 --------- 1809 When upgrading the boot ZFS pool to a new version, always follow 1810 these two steps: 1811 1812 1.) recompile and reinstall the ZFS boot loader and boot block 1813 (this is part of "make buildworld" and "make installworld") 1814 1815 2.) update the ZFS boot block on your boot drive 1816 1817 The following example updates the ZFS boot block on the first 1818 partition (freebsd-boot) of a GPT partitioned drive ada0: 1819 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1820 1821 Non-boot pools do not need these updates. 1822 1823 To build a kernel 1824 ----------------- 1825 If you are updating from a prior version of FreeBSD (even one just 1826 a few days old), you should follow this procedure. It is the most 1827 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1828 1829 make kernel-toolchain 1830 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1831 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1832 1833 To test a kernel once 1834 --------------------- 1835 If you just want to boot a kernel once (because you are not sure 1836 if it works, or if you want to boot a known bad kernel to provide 1837 debugging information) run 1838 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1839 nextboot -k testkernel 1840 1841 To just build a kernel when you know that it won't mess you up 1842 -------------------------------------------------------------- 1843 This assumes you are already running a CURRENT system. Replace 1844 ${arch} with the architecture of your machine (e.g. "i386", 1845 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1846 1847 cd src/sys/${arch}/conf 1848 config KERNEL_NAME_HERE 1849 cd ../compile/KERNEL_NAME_HERE 1850 make depend 1851 make 1852 make install 1853 1854 If this fails, go to the "To build a kernel" section. 1855 1856 To rebuild everything and install it on the current system. 1857 ----------------------------------------------------------- 1858 # Note: sometimes if you are running current you gotta do more than 1859 # is listed here if you are upgrading from a really old current. 1860 1861 <make sure you have good level 0 dumps> 1862 make buildworld 1863 make kernel KERNCONF=YOUR_KERNEL_HERE 1864 [1] 1865 <reboot in single user> [3] 1866 mergemaster -Fp [5] 1867 make installworld 1868 mergemaster -Fi [4] 1869 make delete-old [6] 1870 <reboot> 1871 1872 To cross-install current onto a separate partition 1873 -------------------------------------------------- 1874 # In this approach we use a separate partition to hold 1875 # current's root, 'usr', and 'var' directories. A partition 1876 # holding "/", "/usr" and "/var" should be about 2GB in 1877 # size. 1878 1879 <make sure you have good level 0 dumps> 1880 <boot into -stable> 1881 make buildworld 1882 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1883 <maybe newfs current's root partition> 1884 <mount current's root partition on directory ${CURRENT_ROOT}> 1885 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1886 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1887 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1888 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1889 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1890 <reboot into current> 1891 <do a "native" rebuild/install as described in the previous section> 1892 <maybe install compatibility libraries from ports/misc/compat*> 1893 <reboot> 1894 1895 1896 To upgrade in-place from stable to current 1897 ---------------------------------------------- 1898 <make sure you have good level 0 dumps> 1899 make buildworld [9] 1900 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1901 [1] 1902 <reboot in single user> [3] 1903 mergemaster -Fp [5] 1904 make installworld 1905 mergemaster -Fi [4] 1906 make delete-old [6] 1907 <reboot> 1908 1909 Make sure that you've read the UPDATING file to understand the 1910 tweaks to various things you need. At this point in the life 1911 cycle of current, things change often and you are on your own 1912 to cope. The defaults can also change, so please read ALL of 1913 the UPDATING entries. 1914 1915 Also, if you are tracking -current, you must be subscribed to 1916 freebsd-current@freebsd.org. Make sure that before you update 1917 your sources that you have read and understood all the recent 1918 messages there. If in doubt, please track -stable which has 1919 much fewer pitfalls. 1920 1921 [1] If you have third party modules, such as vmware, you 1922 should disable them at this point so they don't crash your 1923 system on reboot. 1924 1925 [3] From the bootblocks, boot -s, and then do 1926 fsck -p 1927 mount -u / 1928 mount -a 1929 cd src 1930 adjkerntz -i # if CMOS is wall time 1931 Also, when doing a major release upgrade, it is required that 1932 you boot into single user mode to do the installworld. 1933 1934 [4] Note: This step is non-optional. Failure to do this step 1935 can result in a significant reduction in the functionality of the 1936 system. Attempting to do it by hand is not recommended and those 1937 that pursue this avenue should read this file carefully, as well 1938 as the archives of freebsd-current and freebsd-hackers mailing lists 1939 for potential gotchas. The -U option is also useful to consider. 1940 See mergemaster(8) for more information. 1941 1942 [5] Usually this step is a noop. However, from time to time 1943 you may need to do this if you get unknown user in the following 1944 step. It never hurts to do it all the time. You may need to 1945 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1946 install) after the buildworld before this step if you last updated 1947 from current before 20130425 or from -stable before 20130430. 1948 1949 [6] This only deletes old files and directories. Old libraries 1950 can be deleted by "make delete-old-libs", but you have to make 1951 sure that no program is using those libraries anymore. 1952 1953 [8] In order to have a kernel that can run the 4.x binaries needed to 1954 do an installworld, you must include the COMPAT_FREEBSD4 option in 1955 your kernel. Failure to do so may leave you with a system that is 1956 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1957 required to run the 5.x binaries on more recent kernels. And so on 1958 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1959 1960 Make sure that you merge any new devices from GENERIC since the 1961 last time you updated your kernel config file. 1962 1963 [9] When checking out sources, you must include the -P flag to have 1964 cvs prune empty directories. 1965 1966 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1967 "?=" instead of the "=" assignment operator, so that buildworld can 1968 override the CPUTYPE if it needs to. 1969 1970 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1971 not on the command line, or in /etc/make.conf. buildworld will 1972 warn if it is improperly defined. 1973FORMAT: 1974 1975This file contains a list, in reverse chronological order, of major 1976breakages in tracking -current. It is not guaranteed to be a complete 1977list of such breakages, and only contains entries since September 23, 2011. 1978If you need to see UPDATING entries from before that date, you will need 1979to fetch an UPDATING file from an older FreeBSD release. 1980 1981Copyright information: 1982 1983Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1984 1985Redistribution, publication, translation and use, with or without 1986modification, in full or in part, in any form or format of this 1987document are permitted without further permission from the author. 1988 1989THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1990IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1991WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1992DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1993INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1994(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1995SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1996HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1997STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1998IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1999POSSIBILITY OF SUCH DAMAGE. 2000 2001Contact Warner Losh if you have any questions about your use of 2002this document. 2003 2004$FreeBSD$ 2005