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 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG and WITH_GCC to bootstrap to 16the tip of head, and then rebuild without this option. The bootstrap process 17from older version of current across the gcc/clang cutover is a bit fragile. 18 19NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: 20 FreeBSD 11.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 3420160510: 35 Kernel modules compiled outside of a kernel build now default to 36 installing to /boot/modules instead of /boot/kernel. Many kernel 37 modules built this way (such as those in ports) already overrode 38 KMODDIR explicitly to install into /boot/modules. However, 39 manually building and installing a module from /sys/modules will 40 now install to /boot/modules instead of /boot/kernel. 41 4220160414: 43 The CAM I/O scheduler has been committed to the kernel. There should be 44 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 45 list of known rogues that claim support for this but actually corrupt 46 data is believed to be complete, be on the lookout for data 47 corruption. The known rogue list is believed to be complete: 48 49 o Crucial MX100, M550 drives with MU01 firmware. 50 o Micron M510 and M550 drives with MU01 firmware. 51 o Micron M500 prior to MU07 firmware 52 o Samsung 830, 840, and 850 all firmwares 53 o FCCT M500 all firmwares 54 55 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 56 with working NCQ TRIM. For Micron branded drives, see your sales rep for 57 updated firmware. Black listed drives will work correctly because these 58 drives work correctly so long as no NCQ TRIMs are sent to them. Given 59 this list is the same as found in Linux, it's believed there are no 60 other rogues in the market place. All other models from the above 61 vendors work. 62 63 To be safe, if you are at all concerned, you can quirk each of your 64 drives to prevent NCQ from being sent by setting: 65 kern.cam.ada.X.quirks="0x2" 66 in loader.conf. If the drive requires the 4k sector quirk, set the 67 quirks entry to 0x3. 68 6920160330: 70 The FAST_DEPEND build option has been removed and its functionality is 71 now the one true way. The old mkdep(1) style of 'make depend' has 72 been removed. See 20160311 for further details. 73 7420160317: 75 Resource range types have grown from unsigned long to uintmax_t. All 76 drivers, and anything using libdevinfo, need to be recompiled. 77 7820160311: 79 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 80 builds. It no longer runs mkdep(1) during 'make depend', and the 81 'make depend' stage can safely be skipped now as it is auto ran 82 when building 'make all' and will generate all SRCS and DPSRCS before 83 building anything else. Dependencies are gathered at compile time with 84 -MF flags kept in separate .depend files per object file. Users should 85 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 86 stale .depend files. 87 8820160306: 89 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 90 kernel modules. Therefore, if you load any kernel modules at boot time, 91 please install the boot loaders after you install the kernel, but before 92 rebooting, e.g.: 93 94 make buildworld 95 make kernel KERNCONF=YOUR_KERNEL_HERE 96 make -C sys/boot install 97 <reboot in single user> 98 99 Then follow the usual steps, described in the General Notes section, 100 below. 101 10220160305: 103 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 104 see the 20141231 entry below for information about prerequisites and 105 upgrading, if you are not already using clang 3.5.0 or higher. 106 10720160301: 108 The AIO subsystem is now a standard part of the kernel. The 109 VFS_AIO kernel option and aio.ko kernel module have been removed. 110 Due to stability concerns, asynchronous I/O requests are only 111 permitted on sockets and raw disks by default. To enable 112 asynchronous I/O requests on all file types, set the 113 vfs.aio.enable_unsafe sysctl to a non-zero value. 114 11520160226: 116 The ELF object manipulation tool objcopy is now provided by the 117 ELF Tool Chain project rather than by GNU binutils. It should be a 118 drop-in replacement, with the addition of arm64 support. The 119 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 120 to obtain the GNU version if necessary. 121 12220160129: 123 Building ZFS pools on top of zvols is prohibited by default. That 124 feature has never worked safely; it's always been prone to deadlocks. 125 Using a zvol as the backing store for a VM guest's virtual disk will 126 still work, even if the guest is using ZFS. Legacy behavior can be 127 restored by setting vfs.zfs.vol.recursive=1. 128 12920160119: 130 The NONE and HPN patches has been removed from OpenSSH. They are 131 still available in the security/openssh-portable port. 132 13320160113: 134 With the addition of ypldap(8), a new _ypldap user is now required 135 during installworld. "mergemaster -p" can be used to add the user 136 prior to installworld, as documented in the handbook. 137 13820151216: 139 The tftp loader (pxeboot) now uses the option root-path directive. As a 140 consequence it no longer looks for a pxeboot.4th file on the tftp 141 server. Instead it uses the regular /boot infrastructure as with the 142 other loaders. 143 14420151211: 145 The code to start recording plug and play data into the modules has 146 been committed. While the old tools will properly build a new kernel, 147 a number of warnings about "unknown metadata record 4" will be produced 148 for an older kldxref. To avoid such warnings, make sure to rebuild 149 the kernel toolchain (or world). Make sure that you have r292078 or 150 later when trying to build 292077 or later before rebuilding. 151 15220151207: 153 Debug data files are now built by default with 'make buildworld' and 154 installed with 'make installworld'. This facilitates debugging but 155 requires more disk space both during the build and for the installed 156 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 157 in src.conf(5). 158 15920151130: 160 r291527 changed the internal interface between the nfsd.ko and 161 nfscommon.ko modules. As such, they must both be upgraded to-gether. 162 __FreeBSD_version has been bumped because of this. 163 16420151108: 165 Add support for unicode collation strings leads to a change of 166 order of files listed by ls(1) for example. To get back to the old 167 behaviour, set LC_COLLATE environment variable to "C". 168 169 Databases administrators will need to reindex their databases given 170 collation results will be different. 171 172 Due to a bug in install(1) it is recommended to remove the ancient 173 locales before running make installworld. 174 175 rm -rf /usr/share/locale/* 176 17720151030: 178 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 179 libcrypto.so.7 or libssl.so.7 must be recompiled. 180 18120151020: 182 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 183 Kernel modules isp_2400_multi and isp_2500_multi were removed and 184 should be replaced with isp_2400 and isp_2500 modules respectively. 185 18620151017: 187 The build previously allowed using 'make -n' to not recurse into 188 sub-directories while showing what commands would be executed, and 189 'make -n -n' to recursively show commands. Now 'make -n' will recurse 190 and 'make -N' will not. 191 19220151012: 193 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 194 and etcupdate will now use this file. A custom sendmail.cf is now 195 updated via this mechanism rather than via installworld. If you had 196 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 197 want to remove the exclusion or change it to "always install". 198 /etc/mail/sendmail.cf is now managed the same way regardless of 199 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 200 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 201 20220151011: 203 Compatibility shims for legacy ATA device names have been removed. 204 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 205 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 206 environment variables, /dev/ad* and /dev/ar* symbolic links. 207 20820151006: 209 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 210 Please see the 20141231 entry below for information about prerequisites 211 and upgrading, if you are not already using clang 3.5.0 or higher. 212 21320150924: 214 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 215 and renamed from .symbols to .debug. This reduces the size requirements 216 on the boot partition or file system and provides consistency with 217 userland debug files. 218 219 When using the supported kernel installation method the 220 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 221 as is done with /boot/kernel. 222 223 Developers wishing to maintain the historical behavior of installing 224 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 225 22620150827: 227 The wireless drivers had undergone changes that remove the 'parent 228 interface' from the ifconfig -l output. The rc.d network scripts 229 used to check presence of a parent interface in the list, so old 230 scripts would fail to start wireless networking. Thus, etcupdate(3) 231 or mergemaster(8) run is required after kernel update, to update your 232 rc.d scripts in /etc. 233 23420150827: 235 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 236 These configurations are now automatically interpreted as 237 'scrub fragment reassemble'. 238 23920150817: 240 Kernel-loadable modules for the random(4) device are back. To use 241 them, the kernel must have 242 243 device random 244 options RANDOM_LOADABLE 245 246 kldload(8) can then be used to load random_fortuna.ko 247 or random_yarrow.ko. Please note that due to the indirect 248 function calls that the loadable modules need to provide, 249 the build-in variants will be slightly more efficient. 250 251 The random(4) kernel option RANDOM_DUMMY has been retired due to 252 unpopularity. It was not all that useful anyway. 253 25420150813: 255 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 256 Control over building the ELF Tool Chain tools is now provided by 257 the WITHOUT_TOOLCHAIN knob. 258 25920150810: 260 The polarity of Pulse Per Second (PPS) capture events with the 261 uart(4) driver has been corrected. Prior to this change the PPS 262 "assert" event corresponded to the trailing edge of a positive PPS 263 pulse and the "clear" event was the leading edge of the next pulse. 264 265 As the width of a PPS pulse in a typical GPS receiver is on the 266 order of 1 millisecond, most users will not notice any significant 267 difference with this change. 268 269 Anyone who has compensated for the historical polarity reversal by 270 configuring a negative offset equal to the pulse width will need to 271 remove that workaround. 272 27320150809: 274 The default group assigned to /dev/dri entries has been changed 275 from 'wheel' to 'video' with the id of '44'. If you want to have 276 access to the dri devices please add yourself to the video group 277 with: 278 279 # pw groupmod video -m $USER 280 28120150806: 282 The menu.rc and loader.rc files will now be replaced during 283 upgrades. Please migrate local changes to menu.rc.local and 284 loader.rc.local instead. 285 28620150805: 287 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 288 strings and strip have been removed. The src.conf(5) knob 289 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 290 29120150728: 292 As ZFS requires more kernel stack pages than is the default on some 293 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 294 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 295 296 Please consider using 'options KSTACK_PAGES=X' where X is greater 297 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 298 29920150706: 300 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 301 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 302 default, i.e., they will not contain "::". For example, instead 303 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 304 to have a more specific match, such as different map entries for 305 IPv6:0:0 vs IPv6:0. This change requires that configuration 306 data (including maps, files, classes, custom ruleset, etc.) must 307 use the same format, so make certain such configuration data is 308 upgrading. As a very simple check search for patterns like 309 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 310 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 311 the cf option UseCompressedIPv6Addresses. 312 31320150630: 314 The default kernel entropy-processing algorithm is now 315 Fortuna, replacing Yarrow. 316 317 Assuming you have 'device random' in your kernel config 318 file, the configurations allow a kernel option to override 319 this default. You may choose *ONE* of: 320 321 options RANDOM_YARROW # Legacy /dev/random algorithm. 322 options RANDOM_DUMMY # Blocking-only driver. 323 324 If you have neither, you get Fortuna. For most people, 325 read no further, Fortuna will give a /dev/random that works 326 like it always used to, and the difference will be irrelevant. 327 328 If you remove 'device random', you get *NO* kernel-processed 329 entropy at all. This may be acceptable to folks building 330 embedded systems, but has complications. Carry on reading, 331 and it is assumed you know what you need. 332 333 *PLEASE* read random(4) and random(9) if you are in the 334 habit of tweaking kernel configs, and/or if you are a member 335 of the embedded community, wanting specific and not-usual 336 behaviour from your security subsystems. 337 338 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 339 random', you will NOT have a functioning /dev/random, and 340 many cryptographic features will not work, including SSH. 341 You may also find strange behaviour from the random(3) set 342 of library functions, in particular sranddev(3), srandomdev(3) 343 and arc4random(3). The reason for this is that the KERN_ARND 344 sysctl only returns entropy if it thinks it has some to 345 share, and with RANDOM_DUMMY or no 'device random' this 346 will never happen. 347 34820150623: 349 An additional fix for the issue described in the 20150614 sendmail 350 entry below has been been committed in revision 284717. 351 35220150616: 353 FreeBSD's old make (fmake) has been removed from the system. It is 354 available as the devel/fmake port or via pkg install fmake. 355 35620150615: 357 The fix for the issue described in the 20150614 sendmail entry 358 below has been been committed in revision 284436. The work 359 around described in that entry is no longer needed unless the 360 default setting is overridden by a confDH_PARAMETERS configuration 361 setting of '5' or pointing to a 512 bit DH parameter file. 362 36320150614: 364 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 365 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 366 and devel/kyua to version 0.20+ and adjust any calling code to work 367 with Kyuafile and kyua. 368 36920150614: 370 The import of openssl to address the FreeBSD-SA-15:10.openssl 371 security advisory includes a change which rejects handshakes 372 with DH parameters below 768 bits. sendmail releases prior 373 to 8.15.2 (not yet released), defaulted to a 512 bit 374 DH parameter setting for client connections. To work around 375 this interoperability, sendmail can be configured to use a 376 2048 bit DH parameter by: 377 378 1. Edit /etc/mail/`hostname`.mc 379 2. If a setting for confDH_PARAMETERS does not exist or 380 exists and is set to a string beginning with '5', 381 replace it with '2'. 382 3. If a setting for confDH_PARAMETERS exists and is set to 383 a file path, create a new file with: 384 openssl dhparam -out /path/to/file 2048 385 4. Rebuild the .cf file: 386 cd /etc/mail/; make; make install 387 5. Restart sendmail: 388 cd /etc/mail/; make restart 389 390 A sendmail patch is coming, at which time this file will be 391 updated. 392 39320150604: 394 Generation of legacy formatted entries have been disabled by default 395 in pwd_mkdb(8), as all base system consumers of the legacy formatted 396 entries were converted to use the new format by default when the new, 397 machine independent format have been added and supported since FreeBSD 398 5.x. 399 400 Please see the pwd_mkdb(8) manual page for further details. 401 40220150525: 403 Clang and llvm have been upgraded to 3.6.1 release. Please see the 404 20141231 entry below for information about prerequisites and upgrading, 405 if you are not already using 3.5.0 or higher. 406 40720150521: 408 TI platform code switched to using vendor DTS files and this update 409 may break existing systems running on Beaglebone, Beaglebone Black, 410 and Pandaboard: 411 412 - dtb files should be regenerated/reinstalled. Filenames are the 413 same but content is different now 414 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 415 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 416 addressing scheme is now pin 25 on /dev/gpioc3. 417 - Pandaboard: /etc/ttys should be updated, serial console device is 418 now /dev/ttyu2, not /dev/ttyu0 419 42020150501: 421 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 422 If you need the GNU extension from groff soelim(1), install groff 423 from package: pkg install groff, or via ports: textproc/groff. 424 42520150423: 426 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 427 defined in symlink(7); previously symlinks were silently ignored. 428 42920150415: 430 The const qualifier has been removed from iconv(3) to comply with 431 POSIX. The ports tree is aware of this from r384038 onwards. 432 43320150416: 434 Libraries specified by LIBADD in Makefiles must have a corresponding 435 DPADD_<lib> variable to ensure correct dependencies. This is now 436 enforced in src.libnames.mk. 437 43820150324: 439 From legacy ata(4) driver was removed support for SATA controllers 440 supported by more functional drivers ahci(4), siis(4) and mvs(4). 441 Kernel modules ataahci and ataadaptec were removed completely, 442 replaced by ahci and mvs modules respectively. 443 44420150315: 445 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 446 the 20141231 entry below for information about prerequisites and 447 upgrading, if you are not already using 3.5.0 or higher. 448 44920150307: 450 The 32-bit PowerPC kernel has been changed to a position-independent 451 executable. This can only be booted with a version of loader(8) 452 newer than January 31, 2015, so make sure to update both world and 453 kernel before rebooting. 454 45520150217: 456 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 457 but before r278950, the RNG was not seeded properly. Immediately 458 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 459 ssh keys or openssl keys) that were generated w/ a kernel from that 460 range. This does not affect programs that directly used /dev/random 461 or /dev/urandom. All userland uses of arc4random(3) are affected. 462 46320150210: 464 The autofs(4) ABI was changed in order to restore binary compatibility 465 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 466 with the new kernel. 467 46820150131: 469 The powerpc64 kernel has been changed to a position-independent 470 executable. This can only be booted with a new version of loader(8), 471 so make sure to update both world and kernel before rebooting. 472 47320150118: 474 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 475 only release, no new features have been added. Please see the 20141231 476 entry below for information about prerequisites and upgrading, if you 477 are not already using 3.5.0. 478 47920150107: 480 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 481 taken from the ELF Tool Chain project rather than GNU binutils. They 482 should be drop-in replacements, with the addition of arm64 support. 483 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 484 binutils tools, if necessary. See 20150805 for updated information. 485 48620150105: 487 The default Unbound configuration now enables remote control 488 using a local socket. Users who have already enabled the 489 local_unbound service should regenerate their configuration 490 by running "service local_unbound setup" as root. 491 49220150102: 493 The GNU texinfo and GNU info pages have been removed. 494 To be able to view GNU info pages please install texinfo from ports. 495 49620141231: 497 Clang, llvm and lldb have been upgraded to 3.5.0 release. 498 499 As of this release, a prerequisite for building clang, llvm and lldb is 500 a C++11 capable compiler and C++11 standard library. This means that to 501 be able to successfully build the cross-tools stage of buildworld, with 502 clang as the bootstrap compiler, your system compiler or cross compiler 503 should either be clang 3.3 or later, or gcc 4.8 or later, and your 504 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 505 later. 506 507 On any standard FreeBSD 10.x or 11.x installation, where clang and 508 libc++ are on by default (that is, on x86 or arm), this should work out 509 of the box. 510 511 On 9.x installations where clang is enabled by default, e.g. on x86 and 512 powerpc, libc++ will not be enabled by default, so libc++ should be 513 built (with clang) and installed first. If both clang and libc++ are 514 missing, build clang first, then use it to build libc++. 515 516 On 8.x and earlier installations, upgrade to 9.x first, and then follow 517 the instructions for 9.x above. 518 519 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 520 default, and do not build clang. 521 522 Many embedded systems are resource constrained, and will not be able to 523 build clang in a reasonable time, or in some cases at all. In those 524 cases, cross building bootable systems on amd64 is a workaround. 525 526 This new version of clang introduces a number of new warnings, of which 527 the following are most likely to appear: 528 529 -Wabsolute-value 530 531 This warns in two cases, for both C and C++: 532 * When the code is trying to take the absolute value of an unsigned 533 quantity, which is effectively a no-op, and almost never what was 534 intended. The code should be fixed, if at all possible. If you are 535 sure that the unsigned quantity can be safely cast to signed, without 536 loss of information or undefined behavior, you can add an explicit 537 cast, or disable the warning. 538 539 * When the code is trying to take an absolute value, but the called 540 abs() variant is for the wrong type, which can lead to truncation. 541 If you want to disable the warning instead of fixing the code, please 542 make sure that truncation will not occur, or it might lead to unwanted 543 side-effects. 544 545 -Wtautological-undefined-compare and 546 -Wundefined-bool-conversion 547 548 These warn when C++ code is trying to compare 'this' against NULL, while 549 'this' should never be NULL in well-defined C++ code. However, there is 550 some legacy (pre C++11) code out there, which actively abuses this 551 feature, which was less strictly defined in previous C++ versions. 552 553 Squid and openjdk do this, for example. The warning can be turned off 554 for C++98 and earlier, but compiling the code in C++11 mode might result 555 in unexpected behavior; for example, the parts of the program that are 556 unreachable could be optimized away. 557 55820141222: 559 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 560 kernel sources have been removed. The .h files remain, since some 561 utilities include them. This will need to be fixed later. 562 If "mount -t oldnfs ..." is attempted, it will fail. 563 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 564 the utilities will report errors. 565 56620141121: 567 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 568 directories to top level SUBDIR variable when their parent 569 directory is included in LOCAL_DIRS. Users with build systems with 570 such hierarchies and without SUBDIR entries in the parent 571 directory Makefiles should add them or add the directories to 572 LOCAL_DIRS. 573 57420141109: 575 faith(4) and faithd(8) have been removed from the base system. Faith 576 has been obsolete for a very long time. 577 57820141104: 579 vt(4), the new console driver, is enabled by default. It brings 580 support for Unicode and double-width characters, as well as 581 support for UEFI and integration with the KMS kernel video 582 drivers. 583 584 You may need to update your console settings in /etc/rc.conf, 585 most probably the keymap. During boot, /etc/rc.d/syscons will 586 indicate what you need to do. 587 588 vt(4) still has issues and lacks some features compared to 589 syscons(4). See the wiki for up-to-date information: 590 https://wiki.freebsd.org/Newcons 591 592 If you want to keep using syscons(4), you can do so by adding 593 the following line to /boot/loader.conf: 594 kern.vty=sc 595 59620141102: 597 pjdfstest has been integrated into kyua as an opt-in test suite. 598 Please see share/doc/pjdfstest/README for more details on how to 599 execute it. 600 60120141009: 602 gperf has been removed from the base system for architectures 603 that use clang. Ports that require gperf will obtain it from the 604 devel/gperf port. 605 60620140923: 607 pjdfstest has been moved from tools/regression/pjdfstest to 608 contrib/pjdfstest . 609 61020140922: 611 At svn r271982, The default linux compat kernel ABI has been adjusted 612 to 2.6.18 in support of the linux-c6 compat ports infrastructure 613 update. If you wish to continue using the linux-f10 compat ports, 614 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 615 encouraged to update their linux-compat packages to linux-c6 during 616 their next update cycle. 617 61820140729: 619 The ofwfb driver, used to provide a graphics console on PowerPC when 620 using vt(4), no longer allows mmap() of all physical memory. This 621 will prevent Xorg on PowerPC with some ATI graphics cards from 622 initializing properly unless x11-servers/xorg-server is updated to 623 1.12.4_8 or newer. 624 62520140723: 626 The xdev targets have been converted to using TARGET and 627 TARGET_ARCH instead of XDEV and XDEV_ARCH. 628 62920140719: 630 The default unbound configuration has been modified to address 631 issues with reverse lookups on networks that use private 632 address ranges. If you use the local_unbound service, run 633 "service local_unbound setup" as root to regenerate your 634 configuration, then "service local_unbound reload" to load the 635 new configuration. 636 63720140709: 638 The GNU texinfo and GNU info pages are not built and installed 639 anymore, WITH_INFO knob has been added to allow to built and install 640 them again. 641 UPDATE: see 20150102 entry on texinfo's removal 642 64320140708: 644 The GNU readline library is now an INTERNALLIB - that is, it is 645 statically linked into consumers (GDB and variants) in the base 646 system, and the shared library is no longer installed. The 647 devel/readline port is available for third party software that 648 requires readline. 649 65020140702: 651 The Itanium architecture (ia64) has been removed from the list of 652 known architectures. This is the first step in the removal of the 653 architecture. 654 65520140701: 656 Commit r268115 has added NFSv4.1 server support, merged from 657 projects/nfsv4.1-server. Since this includes changes to the 658 internal interfaces between the NFS related modules, a full 659 build of the kernel and modules will be necessary. 660 __FreeBSD_version has been bumped. 661 66220140629: 663 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 664 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 665 which differs from the behaviour controlled by this knob.) 666 66720140619: 668 Maximal length of the serial number in CTL was increased from 16 to 669 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 670 and ctld, need to be rebuilt to work with a new kernel. 671 67220140606: 673 The libatf-c and libatf-c++ major versions were downgraded to 0 and 674 1 respectively to match the upstream numbers. They were out of 675 sync because, when they were originally added to FreeBSD, the 676 upstream versions were not respected. These libraries are private 677 and not yet built by default, so renumbering them should be a 678 non-issue. However, unclean source trees will yield broken test 679 programs once the operator executes "make delete-old-libs" after a 680 "make installworld". 681 682 Additionally, the atf-sh binary was made private by moving it into 683 /usr/libexec/. Already-built shell test programs will keep the 684 path to the old binary so they will break after "make delete-old" 685 is run. 686 687 If you are using WITH_TESTS=yes (not the default), wipe the object 688 tree and rebuild from scratch to prevent spurious test failures. 689 This is only needed once: the misnumbered libraries and misplaced 690 binaries have been added to OptionalObsoleteFiles.inc so they will 691 be removed during a clean upgrade. 692 69320140512: 694 Clang and llvm have been upgraded to 3.4.1 release. 695 69620140508: 697 We bogusly installed src.opts.mk in /usr/share/mk. This file should 698 be removed to avoid issues in the future (and has been added to 699 ObsoleteFiles.inc). 700 70120140505: 702 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 703 past, it affected all builds that used the bsd.*.mk files. The old 704 behavior was a bug, but people may have relied upon it. To get this 705 behavior back, you can .include /etc/src.conf from /etc/make.conf 706 (which is still global and isn't changed). This also changes the 707 behavior of incremental builds inside the tree of individual 708 directories. Set MAKESYSPATH to ".../share/mk" to do that. 709 Although this has survived make universe and some upgrade scenarios, 710 other upgrade scenarios may have broken. At least one form of 711 temporary breakage was fixed with MAKESYSPATH settings for buildworld 712 as well... In cases where MAKESYSPATH isn't working with this 713 setting, you'll need to set it to the full path to your tree. 714 715 One side effect of all this cleaning up is that bsd.compiler.mk 716 is no longer implicitly included by bsd.own.mk. If you wish to 717 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 718 as well. 719 72020140430: 721 The lindev device has been removed since /dev/full has been made a 722 standard device. __FreeBSD_version has been bumped. 723 72420140424: 725 The knob WITHOUT_VI was added to the base system, which controls 726 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 727 in order to reorder files share/termcap and didn't build ex(1) as a 728 build tool, so building/installing with WITH_VI is highly advised for 729 build hosts for older releases. 730 731 This issue has been fixed in stable/9 and stable/10 in r277022 and 732 r276991, respectively. 733 73420140418: 735 The YES_HESIOD knob has been removed. It has been obsolete for 736 a decade. Please move to using WITH_HESIOD instead or your builds 737 will silently lack HESIOD. 738 73920140405: 740 The uart(4) driver has been changed with respect to its handling 741 of the low-level console. Previously the uart(4) driver prevented 742 any process from changing the baudrate or the CLOCAL and HUPCL 743 control flags. By removing the restrictions, operators can make 744 changes to the serial console port without having to reboot. 745 However, when getty(8) is started on the serial device that is 746 associated with the low-level console, a misconfigured terminal 747 line in /etc/ttys will now have a real impact. 748 Before upgrading the kernel, make sure that /etc/ttys has the 749 serial console device configured as 3wire without baudrate to 750 preserve the previous behaviour. E.g: 751 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 752 75320140306: 754 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 755 to improve performance. To re-enable it, if needed, run rpcbind 756 with command line option -W. 757 75820140226: 759 Switched back to the GPL dtc compiler due to updates in the upstream 760 dts files not being supported by the BSDL dtc compiler. You will need 761 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 762 may result while building dtb files during a kernel build if you fail 763 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 764 76520140216: 766 Clang and llvm have been upgraded to 3.4 release. 767 76820140216: 769 The nve(4) driver has been removed. Please use the nfe(4) driver 770 for NVIDIA nForce MCP Ethernet adapters instead. 771 77220140212: 773 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 774 This could cause certain C++ applications using shared libraries built 775 against the previous version of libc++ to crash. The incompatibility 776 has now been fixed, but any C++ applications or shared libraries built 777 between r261283 and r261801 should be recompiled. 778 77920140204: 780 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 781 capability mode support. Please note that enabling the feature in 782 kernel is still highly recommended. 783 78420140131: 785 OpenSSH is now built with sandbox support, and will use sandbox as 786 the default privilege separation method. This requires Capsicum 787 capability mode support in kernel. 788 78920140128: 790 The libelf and libdwarf libraries have been updated to newer 791 versions from upstream. Shared library version numbers for 792 these two libraries were bumped. Any ports or binaries 793 requiring these two libraries should be recompiled. 794 __FreeBSD_version is bumped to 1100006. 795 79620140110: 797 If a Makefile in a tests/ directory was auto-generating a Kyuafile 798 instead of providing an explicit one, this would prevent such 799 Makefile from providing its own Kyuafile in the future during 800 NO_CLEAN builds. This has been fixed in the Makefiles but manual 801 intervention is needed to clean an objdir if you use NO_CLEAN: 802 # find /usr/obj -name Kyuafile | xargs rm -f 803 80420131213: 805 The behavior of gss_pseudo_random() for the krb5 mechanism 806 has changed, for applications requesting a longer random string 807 than produced by the underlying enctype's pseudo-random() function. 808 In particular, the random string produced from a session key of 809 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 810 be different at the 17th octet and later, after this change. 811 The counter used in the PRF+ construction is now encoded as a 812 big-endian integer in accordance with RFC 4402. 813 __FreeBSD_version is bumped to 1100004. 814 81520131108: 816 The WITHOUT_ATF build knob has been removed and its functionality 817 has been subsumed into the more generic WITHOUT_TESTS. If you were 818 using the former to disable the build of the ATF libraries, you 819 should change your settings to use the latter. 820 82120131025: 822 The default version of mtree is nmtree which is obtained from 823 NetBSD. The output is generally the same, but may vary 824 slightly. If you found you need identical output adding 825 "-F freebsd9" to the command line should do the trick. For the 826 time being, the old mtree is available as fmtree. 827 82820131014: 829 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 830 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 831 1.1.4_8 and verify bsdyml not linked in, before running "make 832 delete-old-libs": 833 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 834 or 835 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 836 83720131010: 838 The stable/10 branch has been created in subversion from head 839 revision r256279. 840 84120131010: 842 The rc.d/jail script has been updated to support jail(8) 843 configuration file. The "jail_<jname>_*" rc.conf(5) variables 844 for per-jail configuration are automatically converted to 845 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 846 This is transparently backward compatible. See below about some 847 incompatibilities and rc.conf(5) manual page for more details. 848 849 These variables are now deprecated in favor of jail(8) configuration 850 file. One can use "rc.d/jail config <jname>" command to generate 851 a jail(8) configuration file in /var/run/jail.<jname>.conf without 852 running the jail(8) utility. The default pathname of the 853 configuration file is /etc/jail.conf and can be specified by 854 using $jail_conf or $jail_<jname>_conf variables. 855 856 Please note that jail_devfs_ruleset accepts an integer at 857 this moment. Please consider to rewrite the ruleset name 858 with an integer. 859 86020130930: 861 BIND has been removed from the base system. If all you need 862 is a local resolver, simply enable and start the local_unbound 863 service instead. Otherwise, several versions of BIND are 864 available in the ports tree. The dns/bind99 port is one example. 865 866 With this change, nslookup(1) and dig(1) are no longer in the base 867 system. Users should instead use host(1) and drill(1) which are 868 in the base system. Alternatively, nslookup and dig can 869 be obtained by installing the dns/bind-tools port. 870 87120130916: 872 With the addition of unbound(8), a new unbound user is now 873 required during installworld. "mergemaster -p" can be used to 874 add the user prior to installworld, as documented in the handbook. 875 87620130911: 877 OpenSSH is now built with DNSSEC support, and will by default 878 silently trust signed SSHFP records. This can be controlled with 879 the VerifyHostKeyDNS client configuration setting. DNSSEC support 880 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 881 88220130906: 883 The GNU Compiler Collection and C++ standard library (libstdc++) 884 are no longer built by default on platforms where clang is the system 885 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 886 options in src.conf. 887 88820130905: 889 The PROCDESC kernel option is now part of the GENERIC kernel 890 configuration and is required for the rwhod(8) to work. 891 If you are using custom kernel configuration, you should include 892 'options PROCDESC'. 893 89420130905: 895 The API and ABI related to the Capsicum framework was modified 896 in backward incompatible way. The userland libraries and programs 897 have to be recompiled to work with the new kernel. This includes the 898 following libraries and programs, but the whole buildworld is 899 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 900 kdump, procstat, rwho, rwhod, uniq. 901 90220130903: 903 AES-NI intrinsic support has been added to gcc. The AES-NI module 904 has been updated to use this support. A new gcc is required to build 905 the aesni module on both i386 and amd64. 906 90720130821: 908 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 909 Thus "device padlock_rng" and "device rdrand_rng" should be 910 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 911 91220130813: 913 WITH_ICONV has been split into two feature sets. WITH_ICONV now 914 enables just the iconv* functionality and is now on by default. 915 WITH_LIBICONV_COMPAT enables the libiconv api and link time 916 compatibility. Set WITHOUT_ICONV to build the old way. 917 If you have been using WITH_ICONV before, you will very likely 918 need to turn on WITH_LIBICONV_COMPAT. 919 92020130806: 921 INVARIANTS option now enables DEBUG for code with OpenSolaris and 922 Illumos origin, including ZFS. If you have INVARIANTS in your 923 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 924 explicitly. 925 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 926 locks if WITNESS option was set. Because that generated a lot of 927 witness(9) reports and all of them were believed to be false 928 positives, this is no longer done. New option OPENSOLARIS_WITNESS 929 can be used to achieve the previous behavior. 930 93120130806: 932 Timer values in IPv6 data structures now use time_uptime instead 933 of time_second. Although this is not a user-visible functional 934 change, userland utilities which directly use them---ndp(8), 935 rtadvd(8), and rtsold(8) in the base system---need to be updated 936 to r253970 or later. 937 93820130802: 939 find -delete can now delete the pathnames given as arguments, 940 instead of only files found below them or if the pathname did 941 not contain any slashes. Formerly, the following error message 942 would result: 943 944 find: -delete: <path>: relative path potentially not safe 945 946 Deleting the pathnames given as arguments can be prevented 947 without error messages using -mindepth 1 or by changing 948 directory and passing "." as argument to find. This works in the 949 old as well as the new version of find. 950 95120130726: 952 Behavior of devfs rules path matching has been changed. 953 Pattern is now always matched against fully qualified devfs 954 path and slash characters must be explicitly matched by 955 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 956 subdirectories must be reviewed. 957 95820130716: 959 The default ARM ABI has changed to the ARM EABI. The old ABI is 960 incompatible with the ARM EABI and all programs and modules will 961 need to be rebuilt to work with a new kernel. 962 963 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 964 965 NOTE: Support for the old ABI will be removed in the future and 966 users are advised to upgrade. 967 96820130709: 969 pkg_install has been disconnected from the build if you really need it 970 you should add WITH_PKGTOOLS in your src.conf(5). 971 97220130709: 973 Most of network statistics structures were changed to be able 974 keep 64-bits counters. Thus all tools, that work with networking 975 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 976 97720130618: 978 Fix a bug that allowed a tracing process (e.g. gdb) to write 979 to a memory-mapped file in the traced process's address space 980 even if neither the traced process nor the tracing process had 981 write access to that file. 982 98320130615: 984 CVS has been removed from the base system. An exact copy 985 of the code is available from the devel/cvs port. 986 98720130613: 988 Some people report the following error after the switch to bmake: 989 990 make: illegal option -- J 991 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 992 ... 993 *** [buildworld] Error code 2 994 995 this likely due to an old instance of make in 996 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 997 which src/Makefile will use that blindly, if it exists, so if 998 you see the above error: 999 1000 rm -rf `make -V MAKEPATH` 1001 1002 should resolve it. 1003 100420130516: 1005 Use bmake by default. 1006 Whereas before one could choose to build with bmake via 1007 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1008 make. The goal is to remove these knobs for 10-RELEASE. 1009 1010 It is worth noting that bmake (like gmake) treats the command 1011 line as the unit of failure, rather than statements within the 1012 command line. Thus '(cd some/where && dosomething)' is safer 1013 than 'cd some/where; dosomething'. The '()' allows consistent 1014 behavior in parallel build. 1015 101620130429: 1017 Fix a bug that allows NFS clients to issue READDIR on files. 1018 101920130426: 1020 The WITHOUT_IDEA option has been removed because 1021 the IDEA patent expired. 1022 102320130426: 1024 The sysctl which controls TRIM support under ZFS has been renamed 1025 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1026 enabled by default. 1027 102820130425: 1029 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1030 rather than creating it's own in the temporary directory in 1031 order allow access to bootstrapped versions of tools such as 1032 install and mtree. When upgrading from version of FreeBSD where 1033 the install command does not support -l, you will need to 1034 install a new mergemaster command if mergemaster -p is required. 1035 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1036 && make install). 1037 103820130404: 1039 Legacy ATA stack, disabled and replaced by new CAM-based one since 1040 FreeBSD 9.0, completely removed from the sources. Kernel modules 1041 atadisk and atapi*, user-level tools atacontrol and burncd are 1042 removed. Kernel option `options ATA_CAM` is now permanently enabled 1043 and removed. 1044 104520130319: 1046 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1047 and socketpair(2). Software, in particular Kerberos, may 1048 automatically detect and use these during building. The resulting 1049 binaries will not work on older kernels. 1050 105120130308: 1052 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1053 information, see the respective 20130304 entry). 1054 105520130304: 1056 Recent commits to callout(9) changed the size of struct callout, 1057 so the KBI is probably heavily disturbed. Also, some functions 1058 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1059 by macros. Every kernel module using it won't load, so rebuild 1060 is requested. 1061 1062 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1063 but does not initialize by default (because of the new CTL_DISABLE 1064 option) to save memory. To re-enable it, remove the CTL_DISABLE 1065 option from the kernel config file or set kern.cam.ctl.disable=0 1066 in /boot/loader.conf. 1067 106820130301: 1069 The ctl device has been disabled in GENERIC for i386 and amd64. 1070 This was done due to the extra memory being allocated at system 1071 initialisation time by the ctl driver which was only used if 1072 a CAM target device was created. This makes a FreeBSD system 1073 unusable on 128MB or less of RAM. 1074 107520130208: 1076 A new compression method (lz4) has been merged to -HEAD. Please 1077 refer to zpool-features(7) for more information. 1078 1079 Please refer to the "ZFS notes" section of this file for information 1080 on upgrading boot ZFS pools. 1081 108220130129: 1083 A BSD-licensed patch(1) variant has been added and is installed 1084 as bsdpatch, being the GNU version the default patch. 1085 To inverse the logic and use the BSD-licensed one as default, 1086 while having the GNU version installed as gnupatch, rebuild 1087 and install world with the WITH_BSD_PATCH knob set. 1088 108920130121: 1090 Due to the use of the new -l option to install(1) during build 1091 and install, you must take care not to directly set the INSTALL 1092 make variable in your /etc/make.conf, /etc/src.conf, or on the 1093 command line. If you wish to use the -C flag for all installs 1094 you may be able to add INSTALL+=-C to /etc/make.conf or 1095 /etc/src.conf. 1096 109720130118: 1098 The install(1) option -M has changed meaning and now takes an 1099 argument that is a file or path to append logs to. In the 1100 unlikely event that -M was the last option on the command line 1101 and the command line contained at least two files and a target 1102 directory the first file will have logs appended to it. The -M 1103 option served little practical purpose in the last decade so its 1104 use is expected to be extremely rare. 1105 110620121223: 1107 After switching to Clang as the default compiler some users of ZFS 1108 on i386 systems started to experience stack overflow kernel panics. 1109 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1110 111120121222: 1112 GEOM_LABEL now mangles label names read from file system metadata. 1113 Mangling affect labels containing spaces, non-printable characters, 1114 '%' or '"'. Device names in /etc/fstab and other places may need to 1115 be updated. 1116 111720121217: 1118 By default, only the 10 most recent kernel dumps will be saved. To 1119 restore the previous behaviour (no limit on the number of kernel dumps 1120 stored in the dump directory) add the following line to /etc/rc.conf: 1121 1122 savecore_flags="" 1123 112420121201: 1125 With the addition of auditdistd(8), a new auditdistd user is now 1126 required during installworld. "mergemaster -p" can be used to 1127 add the user prior to installworld, as documented in the handbook. 1128 112920121117: 1130 The sin6_scope_id member variable in struct sockaddr_in6 is now 1131 filled by the kernel before passing the structure to the userland via 1132 sysctl or routing socket. This means the KAME-specific embedded scope 1133 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1134 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1135 __FreeBSD_version is bumped to 1000025. 1136 113720121105: 1138 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1139 This means that the world and kernel will be compiled with clang 1140 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1141 and /usr/bin/cpp. To disable this behavior and revert to building 1142 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1143 of current may need to bootstrap WITHOUT_CLANG first if the clang 1144 build fails (its compatibility window doesn't extend to the 9 stable 1145 branch point). 1146 114720121102: 1148 The IPFIREWALL_FORWARD kernel option has been removed. Its 1149 functionality now turned on by default. 1150 115120121023: 1152 The ZERO_COPY_SOCKET kernel option has been removed and 1153 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1154 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1155 mechanism which is not safe and may result in kernel crashes. 1156 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1157 driver supports disposeable external page sized mbuf storage. 1158 Proper replacements for both zero-copy mechanisms are under 1159 consideration and will eventually lead to complete removal 1160 of the two kernel options. 1161 116220121023: 1163 The IPv4 network stack has been converted to network byte 1164 order. The following modules need to be recompiled together 1165 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1166 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1167 116820121022: 1169 Support for non-MPSAFE filesystems was removed from VFS. The 1170 VFS_VERSION was bumped, all filesystem modules shall be 1171 recompiled. 1172 117320121018: 1174 All the non-MPSAFE filesystems have been disconnected from 1175 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1176 portalfs, smbfs, xfs. 1177 117820121016: 1179 The interface cloning API and ABI has changed. The following 1180 modules need to be recompiled together with kernel: 1181 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1182 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1183 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1184 118520121015: 1186 The sdhci driver was split in two parts: sdhci (generic SD Host 1187 Controller logic) and sdhci_pci (actual hardware driver). 1188 No kernel config modifications are required, but if you 1189 load sdhc as a module you must switch to sdhci_pci instead. 1190 119120121014: 1192 Import the FUSE kernel and userland support into base system. 1193 119420121013: 1195 The GNU sort(1) program has been removed since the BSD-licensed 1196 sort(1) has been the default for quite some time and no serious 1197 problems have been reported. The corresponding WITH_GNU_SORT 1198 knob has also gone. 1199 120020121006: 1201 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1202 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1203 with new kernel. 1204 120520121001: 1206 The net80211(4) ABI has been changed to allow for improved driver 1207 PS-POLL and power-save support. All wireless drivers need to be 1208 recompiled to work with the new kernel. 1209 121020120913: 1211 The random(4) support for the VIA hardware random number 1212 generator (`PADLOCK') is no longer enabled unconditionally. 1213 Add the padlock_rng device in the custom kernel config if 1214 needed. The GENERIC kernels on i386 and amd64 do include the 1215 device, so the change only affects the custom kernel 1216 configurations. 1217 121820120908: 1219 The pf(4) packet filter ABI has been changed. pfctl(8) and 1220 snmp_pf module need to be recompiled to work with new kernel. 1221 122220120828: 1223 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1224 to -HEAD. Pools that have empty_bpobj in active state can not be 1225 imported read-write with ZFS implementations that do not support 1226 this feature. For more information read the zpool-features(5) 1227 manual page. 1228 122920120727: 1230 The sparc64 ZFS loader has been changed to no longer try to auto- 1231 detect ZFS providers based on diskN aliases but now requires these 1232 to be explicitly listed in the OFW boot-device environment variable. 1233 123420120712: 1235 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1236 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1237 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1238 123920120712: 1240 The following sysctls and tunables have been renamed for consistency 1241 with other variables: 1242 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1243 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1244 124520120628: 1246 The sort utility has been replaced with BSD sort. For now, GNU sort 1247 is also available as "gnusort" or the default can be set back to 1248 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1249 installed as "bsdsort". 1250 125120120611: 1252 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1253 Starting with this version the old system of ZFS pool versioning 1254 is superseded by "feature flags". This concept enables forward 1255 compatibility against certain future changes in functionality of ZFS 1256 pools. The first read-only compatible "feature flag" for ZFS pools 1257 is named "com.delphix:async_destroy". For more information 1258 read the new zpool-features(5) manual page. 1259 Please refer to the "ZFS notes" section of this file for information 1260 on upgrading boot ZFS pools. 1261 126220120417: 1263 The malloc(3) implementation embedded in libc now uses sources imported 1264 as contrib/jemalloc. The most disruptive API change is to 1265 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1266 delete it prior to installworld, and optionally re-create it using the 1267 new format after rebooting. See malloc.conf(5) for details 1268 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1269 NAMESPACE section). 1270 127120120328: 1272 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1273 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1274 now spelled mips. This is to aid compatibility with third-party 1275 software that expects this naming scheme in uname(3). Little-endian 1276 settings are unchanged. If you are updating a big-endian mips64 machine 1277 from before this change, you may need to set MACHINE_ARCH=mips64 in 1278 your environment before the new build system will recognize your machine. 1279 128020120306: 1281 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1282 platforms. 1283 128420120229: 1285 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1286 nullfs(5) did not pass through all behaviours to the underlying layer, 1287 as a result if we bound to a socket on the lower layer we could connect 1288 only to the lower path; if we bound to the upper layer we could connect 1289 only to the upper path. The new behavior is one can connect to both the 1290 lower and the upper paths regardless what layer path one binds to. 1291 129220120211: 1293 The getifaddrs upgrade path broken with 20111215 has been restored. 1294 If you have upgraded in between 20111215 and 20120209 you need to 1295 recompile libc again with your kernel. You still need to recompile 1296 world to be able to configure CARP but this restriction already 1297 comes from 20111215. 1298 129920120114: 1300 The set_rcvar() function has been removed from /etc/rc.subr. All 1301 base and ports rc.d scripts have been updated, so if you have a 1302 port installed with a script in /usr/local/etc/rc.d you can either 1303 hand-edit the rcvar= line, or reinstall the port. 1304 1305 An easy way to handle the mass-update of /etc/rc.d: 1306 rm /etc/rc.d/* && mergemaster -i 1307 130820120109: 1309 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1310 on the current CPU and prevents other threads from running. 1311 This behavior can be reverted using the kern.stop_scheduler_on_panic 1312 tunable/sysctl. 1313 The new behavior can be incompatible with kern.sync_on_panic. 1314 131520111215: 1316 The carp(4) facility has been changed significantly. Configuration 1317 of the CARP protocol via ifconfig(8) has changed, as well as format 1318 of CARP events submitted to devd(8) has changed. See manual pages 1319 for more information. The arpbalance feature of carp(4) is currently 1320 not supported anymore. 1321 1322 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1323 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1324 need to be recompiled. 1325 132620111122: 1327 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1328 /dev/wmistat0. 1329 133020111108: 1331 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1332 explicitely support non-MPSAFE filesystems. 1333 It is on by default for all supported platform at this present 1334 time. 1335 133620111101: 1337 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1338 i386 and pc98 GENERIC kernel configuration files. 1339 134020110930: 1341 sysinstall has been removed 1342 134320110923: 1344 The stable/9 branch created in subversion. This corresponds to the 1345 RELENG_9 branch in CVS. 1346 1347COMMON ITEMS: 1348 1349 General Notes 1350 ------------- 1351 Avoid using make -j when upgrading. While generally safe, there are 1352 sometimes problems using -j to upgrade. If your upgrade fails with 1353 -j, please try again without -j. From time to time in the past there 1354 have been problems using -j with buildworld and/or installworld. This 1355 is especially true when upgrading between "distant" versions (eg one 1356 that cross a major release boundary or several minor releases, or when 1357 several months have passed on the -current branch). 1358 1359 Sometimes, obscure build problems are the result of environment 1360 poisoning. This can happen because the make utility reads its 1361 environment when searching for values for global variables. To run 1362 your build attempts in an "environmental clean room", prefix all make 1363 commands with 'env -i '. See the env(1) manual page for more details. 1364 1365 When upgrading from one major version to another it is generally best 1366 to upgrade to the latest code in the currently installed branch first, 1367 then do an upgrade to the new branch. This is the best-tested upgrade 1368 path, and has the highest probability of being successful. Please try 1369 this approach before reporting problems with a major version upgrade. 1370 1371 When upgrading a live system, having a root shell around before 1372 installing anything can help undo problems. Not having a root shell 1373 around can lead to problems if pam has changed too much from your 1374 starting point to allow continued authentication after the upgrade. 1375 1376 This file should be read as a log of events. When a later event changes 1377 information of a prior event, the prior event should not be deleted. 1378 Instead, a pointer to the entry with the new information should be 1379 placed in the old entry. Readers of this file should also sanity check 1380 older entries before relying on them blindly. Authors of new entries 1381 should write them with this in mind. 1382 1383 ZFS notes 1384 --------- 1385 When upgrading the boot ZFS pool to a new version, always follow 1386 these two steps: 1387 1388 1.) recompile and reinstall the ZFS boot loader and boot block 1389 (this is part of "make buildworld" and "make installworld") 1390 1391 2.) update the ZFS boot block on your boot drive 1392 1393 The following example updates the ZFS boot block on the first 1394 partition (freebsd-boot) of a GPT partitioned drive ada0: 1395 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1396 1397 Non-boot pools do not need these updates. 1398 1399 To build a kernel 1400 ----------------- 1401 If you are updating from a prior version of FreeBSD (even one just 1402 a few days old), you should follow this procedure. It is the most 1403 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1404 1405 make kernel-toolchain 1406 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1407 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1408 1409 To test a kernel once 1410 --------------------- 1411 If you just want to boot a kernel once (because you are not sure 1412 if it works, or if you want to boot a known bad kernel to provide 1413 debugging information) run 1414 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1415 nextboot -k testkernel 1416 1417 To just build a kernel when you know that it won't mess you up 1418 -------------------------------------------------------------- 1419 This assumes you are already running a CURRENT system. Replace 1420 ${arch} with the architecture of your machine (e.g. "i386", 1421 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1422 1423 cd src/sys/${arch}/conf 1424 config KERNEL_NAME_HERE 1425 cd ../compile/KERNEL_NAME_HERE 1426 make depend 1427 make 1428 make install 1429 1430 If this fails, go to the "To build a kernel" section. 1431 1432 To rebuild everything and install it on the current system. 1433 ----------------------------------------------------------- 1434 # Note: sometimes if you are running current you gotta do more than 1435 # is listed here if you are upgrading from a really old current. 1436 1437 <make sure you have good level 0 dumps> 1438 make buildworld 1439 make kernel KERNCONF=YOUR_KERNEL_HERE 1440 [1] 1441 <reboot in single user> [3] 1442 mergemaster -Fp [5] 1443 make installworld 1444 mergemaster -Fi [4] 1445 make delete-old [6] 1446 <reboot> 1447 1448 To cross-install current onto a separate partition 1449 -------------------------------------------------- 1450 # In this approach we use a separate partition to hold 1451 # current's root, 'usr', and 'var' directories. A partition 1452 # holding "/", "/usr" and "/var" should be about 2GB in 1453 # size. 1454 1455 <make sure you have good level 0 dumps> 1456 <boot into -stable> 1457 make buildworld 1458 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1459 <maybe newfs current's root partition> 1460 <mount current's root partition on directory ${CURRENT_ROOT}> 1461 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1462 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1463 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1464 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1465 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1466 <reboot into current> 1467 <do a "native" rebuild/install as described in the previous section> 1468 <maybe install compatibility libraries from ports/misc/compat*> 1469 <reboot> 1470 1471 1472 To upgrade in-place from stable to current 1473 ---------------------------------------------- 1474 <make sure you have good level 0 dumps> 1475 make buildworld [9] 1476 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1477 [1] 1478 <reboot in single user> [3] 1479 mergemaster -Fp [5] 1480 make installworld 1481 mergemaster -Fi [4] 1482 make delete-old [6] 1483 <reboot> 1484 1485 Make sure that you've read the UPDATING file to understand the 1486 tweaks to various things you need. At this point in the life 1487 cycle of current, things change often and you are on your own 1488 to cope. The defaults can also change, so please read ALL of 1489 the UPDATING entries. 1490 1491 Also, if you are tracking -current, you must be subscribed to 1492 freebsd-current@freebsd.org. Make sure that before you update 1493 your sources that you have read and understood all the recent 1494 messages there. If in doubt, please track -stable which has 1495 much fewer pitfalls. 1496 1497 [1] If you have third party modules, such as vmware, you 1498 should disable them at this point so they don't crash your 1499 system on reboot. 1500 1501 [3] From the bootblocks, boot -s, and then do 1502 fsck -p 1503 mount -u / 1504 mount -a 1505 cd src 1506 adjkerntz -i # if CMOS is wall time 1507 Also, when doing a major release upgrade, it is required that 1508 you boot into single user mode to do the installworld. 1509 1510 [4] Note: This step is non-optional. Failure to do this step 1511 can result in a significant reduction in the functionality of the 1512 system. Attempting to do it by hand is not recommended and those 1513 that pursue this avenue should read this file carefully, as well 1514 as the archives of freebsd-current and freebsd-hackers mailing lists 1515 for potential gotchas. The -U option is also useful to consider. 1516 See mergemaster(8) for more information. 1517 1518 [5] Usually this step is a noop. However, from time to time 1519 you may need to do this if you get unknown user in the following 1520 step. It never hurts to do it all the time. You may need to 1521 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1522 install) after the buildworld before this step if you last updated 1523 from current before 20130425 or from -stable before 20130430. 1524 1525 [6] This only deletes old files and directories. Old libraries 1526 can be deleted by "make delete-old-libs", but you have to make 1527 sure that no program is using those libraries anymore. 1528 1529 [8] In order to have a kernel that can run the 4.x binaries needed to 1530 do an installworld, you must include the COMPAT_FREEBSD4 option in 1531 your kernel. Failure to do so may leave you with a system that is 1532 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1533 required to run the 5.x binaries on more recent kernels. And so on 1534 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1535 1536 Make sure that you merge any new devices from GENERIC since the 1537 last time you updated your kernel config file. 1538 1539 [9] When checking out sources, you must include the -P flag to have 1540 cvs prune empty directories. 1541 1542 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1543 "?=" instead of the "=" assignment operator, so that buildworld can 1544 override the CPUTYPE if it needs to. 1545 1546 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1547 not on the command line, or in /etc/make.conf. buildworld will 1548 warn if it is improperly defined. 1549FORMAT: 1550 1551This file contains a list, in reverse chronological order, of major 1552breakages in tracking -current. It is not guaranteed to be a complete 1553list of such breakages, and only contains entries since September 23, 2011. 1554If you need to see UPDATING entries from before that date, you will need 1555to fetch an UPDATING file from an older FreeBSD release. 1556 1557Copyright information: 1558 1559Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1560 1561Redistribution, publication, translation and use, with or without 1562modification, in full or in part, in any form or format of this 1563document are permitted without further permission from the author. 1564 1565THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1566IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1567WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1568DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1569INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1570(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1571SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1572HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1573STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1574IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1575POSSIBILITY OF SUCH DAMAGE. 1576 1577Contact Warner Losh if you have any questions about your use of 1578this document. 1579 1580$FreeBSD$ 1581