UPDATING revision 324110
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 1920170926: 20 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0. 21 Please see the 20141231 entry below for information about prerequisites 22 and upgrading, if you are not already using clang 3.5.0 or higher. 23 2420170822: 25 Since the switch to GPT disk labels, fsck for UFS/FFS has been 26 unable to automatically find alternate superblocks. As of r322806, 27 the information needed to find alternate superblocks has been 28 moved to the end of the area reserved for the boot block. 29 Filesystems created with a newfs of this vintage or later 30 will create the recovery information. If you have a filesystem 31 created prior to this change and wish to have a recovery block 32 created for your filesystem, you can do so by running fsck in 33 forground mode (i.e., do not use the -p or -y options). As it 34 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 35 to which you should answer yes. 36 3720170518: 38 arm64 builds now use the base system LLD 4.0.0 linker by default, 39 instead of requiring that the aarch64-binutils port or package be 40 installed. To continue using aarch64-binutils, set 41 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 42 4320170529: 44 The ctl.ko module no longer implements the iSCSI target frontend: 45 cfiscsi.ko does instead. 46 47 If building cfiscsi.ko as a kernel module, the module can be loaded 48 via one of the following methods: 49 - `cfiscsi_load="YES"` in loader.conf(5). 50 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 51 - ctladm(8)/ctld(8), when compiled with iSCSI support 52 (`WITH_ISCSI=yes` in src.conf(5)) 53 54 Please see cfiscsi(4) for more details. 55 5620170511: 57 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 58 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 59 same source (previously, the dependency of mmcsd.ko on mmc.ko was 60 missing, but mmcsd.ko now will refuse to load if it is incompatible 61 with mmc.ko). 62 6320170414: 64 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 65 use any explicitly assigned loopback address available in the jail 66 instead of using the first assigned address of the jail. 67 6820170413: 69 As of r316810 for ipfilter, keep frags is no longer assumed when 70 keep state is specified in a rule. r316810 aligns ipfilter with 71 documentation in man pages separating keep frags from keep state. 72 This allows keep state to specified without forcing keep frags 73 and allows keep frags to be specified independently of keep state. 74 To maintain previous behaviour, also specify keep frags with 75 keep state (as documented in ipf.conf.5). 76 7720170402: 78 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 79 Please see the 20141231 entry below for information about prerequisites 80 and upgrading, if you are not already using clang 3.5.0 or higher. 81 8220170323: 83 The code that provides support for ZFS .zfs/ directory functionality 84 has been reimplemented. It's not possible now to create a snapshot 85 by mkdir under .zfs/snapshot/. That should be the only user visible 86 change. 87 8820170319: 89 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT 90 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of 91 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed, 92 and now NAT-T is supported by default. Security associations now use 93 the single namespace for SPI allocation, so if you use several manually 94 configured security associations with the same SPI, this configuration 95 needs modification. 96 9720161217: 98 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 99 Please see the 20141231 entry below for information about prerequisites 100 and upgrading, if you are not already using clang 3.5.0 or higher. 101 10220161124: 103 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 104 Please see the 20141231 entry below for information about prerequisites 105 and upgrading, if you are not already using clang 3.5.0 or higher. 106 10720161119: 108 The layout of the pmap structure has changed for powerpc to put the pmap 109 statistics at the front for all CPU variations. libkvm(3) and all tools 110 that link against it need to be recompiled. 111 11220161030: 113 isl(4) and cyapa(4) drivers now require a new driver, 114 chromebook_platform(4), to work properly on Chromebook-class hardware. 115 On other types of hardware the drivers may need to be configured using 116 device hints. Please see the corresponding manual pages for details. 117 11820161210: 119 Relocatable object files with the extension of .So have been renamed 120 to use an extension of .pico instead. The purpose of this change is 121 to avoid a name clash with shared libraries on case-insensitive file 122 systems. On those file systems, foo.So is the same file as foo.so. 123 12420160622: 125 The libc stub for the pipe(2) system call has been replaced with 126 a wrapper that calls the pipe2(2) system call and the pipe(2) 127 system call is now only implemented by the kernels that include 128 "options COMPAT_FREEBSD10" in their config file (this is the 129 default). Users should ensure that this option is enabled in 130 their kernel or upgrade userspace to r302092 before upgrading their 131 kernel. 132 13320160527: 134 CAM will now strip leading spaces from SCSI disks' serial numbers. 135 This will effect users who create UFS filesystems on SCSI disks using 136 those disk's diskid device nodes. For example, if /etc/fstab 137 previously contained a line like 138 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 139 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 140 transforms like gmirror may also be affected. ZFS users should 141 generally be fine. 142 14320160523: 144 The bitstring(3) API has been updated with new functionality and 145 improved performance. But it is binary-incompatible with the old API. 146 Objects built with the new headers may not be linked against objects 147 built with the old headers. 148 14920160520: 150 The brk and sbrk functions have been removed from libc on arm64. 151 Binutils from ports has been updated to not link to these 152 functions and should be updated to the latest version before 153 installing a new libc. 154 15520160517: 156 The armv6 port now defaults to hard float ABI. Limited support 157 for running both hardfloat and soft float on the same system 158 is available using the libraries installed with -DWITH_LIBSOFT. 159 This has only been tested as an upgrade path for installworld 160 and packages may fail or need manual intervention to run. New 161 packages will be needed. 162 163 To update an existing self-hosted armv6hf system, you must add 164 TARGET_ARCH=armv6 on the make command line for both the build 165 and the install steps. 166 16720160510: 168 Kernel modules compiled outside of a kernel build now default to 169 installing to /boot/modules instead of /boot/kernel. Many kernel 170 modules built this way (such as those in ports) already overrode 171 KMODDIR explicitly to install into /boot/modules. However, 172 manually building and installing a module from /sys/modules will 173 now install to /boot/modules instead of /boot/kernel. 174 17520160414: 176 The CAM I/O scheduler has been committed to the kernel. There should be 177 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 178 list of known rogues that claim support for this but actually corrupt 179 data is believed to be complete, be on the lookout for data 180 corruption. The known rogue list is believed to be complete: 181 182 o Crucial MX100, M550 drives with MU01 firmware. 183 o Micron M510 and M550 drives with MU01 firmware. 184 o Micron M500 prior to MU07 firmware 185 o Samsung 830, 840, and 850 all firmwares 186 o FCCT M500 all firmwares 187 188 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 189 with working NCQ TRIM. For Micron branded drives, see your sales rep for 190 updated firmware. Black listed drives will work correctly because these 191 drives work correctly so long as no NCQ TRIMs are sent to them. Given 192 this list is the same as found in Linux, it's believed there are no 193 other rogues in the market place. All other models from the above 194 vendors work. 195 196 To be safe, if you are at all concerned, you can quirk each of your 197 drives to prevent NCQ from being sent by setting: 198 kern.cam.ada.X.quirks="0x2" 199 in loader.conf. If the drive requires the 4k sector quirk, set the 200 quirks entry to 0x3. 201 20220160330: 203 The FAST_DEPEND build option has been removed and its functionality is 204 now the one true way. The old mkdep(1) style of 'make depend' has 205 been removed. See 20160311 for further details. 206 20720160317: 208 Resource range types have grown from unsigned long to uintmax_t. All 209 drivers, and anything using libdevinfo, need to be recompiled. 210 21120160311: 212 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 213 builds. It no longer runs mkdep(1) during 'make depend', and the 214 'make depend' stage can safely be skipped now as it is auto ran 215 when building 'make all' and will generate all SRCS and DPSRCS before 216 building anything else. Dependencies are gathered at compile time with 217 -MF flags kept in separate .depend files per object file. Users should 218 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 219 stale .depend files. 220 22120160306: 222 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 223 kernel modules. Therefore, if you load any kernel modules at boot time, 224 please install the boot loaders after you install the kernel, but before 225 rebooting, e.g.: 226 227 make buildworld 228 make kernel KERNCONF=YOUR_KERNEL_HERE 229 make -C sys/boot install 230 <reboot in single user> 231 232 Then follow the usual steps, described in the General Notes section, 233 below. 234 23520160305: 236 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 237 see the 20141231 entry below for information about prerequisites and 238 upgrading, if you are not already using clang 3.5.0 or higher. 239 24020160301: 241 The AIO subsystem is now a standard part of the kernel. The 242 VFS_AIO kernel option and aio.ko kernel module have been removed. 243 Due to stability concerns, asynchronous I/O requests are only 244 permitted on sockets and raw disks by default. To enable 245 asynchronous I/O requests on all file types, set the 246 vfs.aio.enable_unsafe sysctl to a non-zero value. 247 24820160226: 249 The ELF object manipulation tool objcopy is now provided by the 250 ELF Tool Chain project rather than by GNU binutils. It should be a 251 drop-in replacement, with the addition of arm64 support. The 252 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 253 to obtain the GNU version if necessary. 254 25520160129: 256 Building ZFS pools on top of zvols is prohibited by default. That 257 feature has never worked safely; it's always been prone to deadlocks. 258 Using a zvol as the backing store for a VM guest's virtual disk will 259 still work, even if the guest is using ZFS. Legacy behavior can be 260 restored by setting vfs.zfs.vol.recursive=1. 261 26220160119: 263 The NONE and HPN patches has been removed from OpenSSH. They are 264 still available in the security/openssh-portable port. 265 26620160113: 267 With the addition of ypldap(8), a new _ypldap user is now required 268 during installworld. "mergemaster -p" can be used to add the user 269 prior to installworld, as documented in the handbook. 270 27120151216: 272 The tftp loader (pxeboot) now uses the option root-path directive. As a 273 consequence it no longer looks for a pxeboot.4th file on the tftp 274 server. Instead it uses the regular /boot infrastructure as with the 275 other loaders. 276 27720151211: 278 The code to start recording plug and play data into the modules has 279 been committed. While the old tools will properly build a new kernel, 280 a number of warnings about "unknown metadata record 4" will be produced 281 for an older kldxref. To avoid such warnings, make sure to rebuild 282 the kernel toolchain (or world). Make sure that you have r292078 or 283 later when trying to build 292077 or later before rebuilding. 284 28520151207: 286 Debug data files are now built by default with 'make buildworld' and 287 installed with 'make installworld'. This facilitates debugging but 288 requires more disk space both during the build and for the installed 289 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 290 in src.conf(5). 291 29220151130: 293 r291527 changed the internal interface between the nfsd.ko and 294 nfscommon.ko modules. As such, they must both be upgraded to-gether. 295 __FreeBSD_version has been bumped because of this. 296 29720151108: 298 Add support for unicode collation strings leads to a change of 299 order of files listed by ls(1) for example. To get back to the old 300 behaviour, set LC_COLLATE environment variable to "C". 301 302 Databases administrators will need to reindex their databases given 303 collation results will be different. 304 305 Due to a bug in install(1) it is recommended to remove the ancient 306 locales before running make installworld. 307 308 rm -rf /usr/share/locale/* 309 31020151030: 311 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 312 libcrypto.so.7 or libssl.so.7 must be recompiled. 313 31420151020: 315 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 316 Kernel modules isp_2400_multi and isp_2500_multi were removed and 317 should be replaced with isp_2400 and isp_2500 modules respectively. 318 31920151017: 320 The build previously allowed using 'make -n' to not recurse into 321 sub-directories while showing what commands would be executed, and 322 'make -n -n' to recursively show commands. Now 'make -n' will recurse 323 and 'make -N' will not. 324 32520151012: 326 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 327 and etcupdate will now use this file. A custom sendmail.cf is now 328 updated via this mechanism rather than via installworld. If you had 329 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 330 want to remove the exclusion or change it to "always install". 331 /etc/mail/sendmail.cf is now managed the same way regardless of 332 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 333 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 334 33520151011: 336 Compatibility shims for legacy ATA device names have been removed. 337 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 338 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 339 environment variables, /dev/ad* and /dev/ar* symbolic links. 340 34120151006: 342 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 343 Please see the 20141231 entry below for information about prerequisites 344 and upgrading, if you are not already using clang 3.5.0 or higher. 345 34620150924: 347 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 348 and renamed from .symbols to .debug. This reduces the size requirements 349 on the boot partition or file system and provides consistency with 350 userland debug files. 351 352 When using the supported kernel installation method the 353 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 354 as is done with /boot/kernel. 355 356 Developers wishing to maintain the historical behavior of installing 357 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 358 35920150827: 360 The wireless drivers had undergone changes that remove the 'parent 361 interface' from the ifconfig -l output. The rc.d network scripts 362 used to check presence of a parent interface in the list, so old 363 scripts would fail to start wireless networking. Thus, etcupdate(3) 364 or mergemaster(8) run is required after kernel update, to update your 365 rc.d scripts in /etc. 366 36720150827: 368 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 369 These configurations are now automatically interpreted as 370 'scrub fragment reassemble'. 371 37220150817: 373 Kernel-loadable modules for the random(4) device are back. To use 374 them, the kernel must have 375 376 device random 377 options RANDOM_LOADABLE 378 379 kldload(8) can then be used to load random_fortuna.ko 380 or random_yarrow.ko. Please note that due to the indirect 381 function calls that the loadable modules need to provide, 382 the build-in variants will be slightly more efficient. 383 384 The random(4) kernel option RANDOM_DUMMY has been retired due to 385 unpopularity. It was not all that useful anyway. 386 38720150813: 388 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 389 Control over building the ELF Tool Chain tools is now provided by 390 the WITHOUT_TOOLCHAIN knob. 391 39220150810: 393 The polarity of Pulse Per Second (PPS) capture events with the 394 uart(4) driver has been corrected. Prior to this change the PPS 395 "assert" event corresponded to the trailing edge of a positive PPS 396 pulse and the "clear" event was the leading edge of the next pulse. 397 398 As the width of a PPS pulse in a typical GPS receiver is on the 399 order of 1 millisecond, most users will not notice any significant 400 difference with this change. 401 402 Anyone who has compensated for the historical polarity reversal by 403 configuring a negative offset equal to the pulse width will need to 404 remove that workaround. 405 40620150809: 407 The default group assigned to /dev/dri entries has been changed 408 from 'wheel' to 'video' with the id of '44'. If you want to have 409 access to the dri devices please add yourself to the video group 410 with: 411 412 # pw groupmod video -m $USER 413 41420150806: 415 The menu.rc and loader.rc files will now be replaced during 416 upgrades. Please migrate local changes to menu.rc.local and 417 loader.rc.local instead. 418 41920150805: 420 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 421 strings and strip have been removed. The src.conf(5) knob 422 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 423 42420150728: 425 As ZFS requires more kernel stack pages than is the default on some 426 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 427 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 428 429 Please consider using 'options KSTACK_PAGES=X' where X is greater 430 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 431 43220150706: 433 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 434 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 435 default, i.e., they will not contain "::". For example, instead 436 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 437 to have a more specific match, such as different map entries for 438 IPv6:0:0 vs IPv6:0. This change requires that configuration 439 data (including maps, files, classes, custom ruleset, etc.) must 440 use the same format, so make certain such configuration data is 441 upgrading. As a very simple check search for patterns like 442 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 443 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 444 the cf option UseCompressedIPv6Addresses. 445 44620150630: 447 The default kernel entropy-processing algorithm is now 448 Fortuna, replacing Yarrow. 449 450 Assuming you have 'device random' in your kernel config 451 file, the configurations allow a kernel option to override 452 this default. You may choose *ONE* of: 453 454 options RANDOM_YARROW # Legacy /dev/random algorithm. 455 options RANDOM_DUMMY # Blocking-only driver. 456 457 If you have neither, you get Fortuna. For most people, 458 read no further, Fortuna will give a /dev/random that works 459 like it always used to, and the difference will be irrelevant. 460 461 If you remove 'device random', you get *NO* kernel-processed 462 entropy at all. This may be acceptable to folks building 463 embedded systems, but has complications. Carry on reading, 464 and it is assumed you know what you need. 465 466 *PLEASE* read random(4) and random(9) if you are in the 467 habit of tweaking kernel configs, and/or if you are a member 468 of the embedded community, wanting specific and not-usual 469 behaviour from your security subsystems. 470 471 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 472 random', you will NOT have a functioning /dev/random, and 473 many cryptographic features will not work, including SSH. 474 You may also find strange behaviour from the random(3) set 475 of library functions, in particular sranddev(3), srandomdev(3) 476 and arc4random(3). The reason for this is that the KERN_ARND 477 sysctl only returns entropy if it thinks it has some to 478 share, and with RANDOM_DUMMY or no 'device random' this 479 will never happen. 480 48120150623: 482 An additional fix for the issue described in the 20150614 sendmail 483 entry below has been been committed in revision 284717. 484 48520150616: 486 FreeBSD's old make (fmake) has been removed from the system. It is 487 available as the devel/fmake port or via pkg install fmake. 488 48920150615: 490 The fix for the issue described in the 20150614 sendmail entry 491 below has been been committed in revision 284436. The work 492 around described in that entry is no longer needed unless the 493 default setting is overridden by a confDH_PARAMETERS configuration 494 setting of '5' or pointing to a 512 bit DH parameter file. 495 49620150614: 497 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 498 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 499 and devel/kyua to version 0.20+ and adjust any calling code to work 500 with Kyuafile and kyua. 501 50220150614: 503 The import of openssl to address the FreeBSD-SA-15:10.openssl 504 security advisory includes a change which rejects handshakes 505 with DH parameters below 768 bits. sendmail releases prior 506 to 8.15.2 (not yet released), defaulted to a 512 bit 507 DH parameter setting for client connections. To work around 508 this interoperability, sendmail can be configured to use a 509 2048 bit DH parameter by: 510 511 1. Edit /etc/mail/`hostname`.mc 512 2. If a setting for confDH_PARAMETERS does not exist or 513 exists and is set to a string beginning with '5', 514 replace it with '2'. 515 3. If a setting for confDH_PARAMETERS exists and is set to 516 a file path, create a new file with: 517 openssl dhparam -out /path/to/file 2048 518 4. Rebuild the .cf file: 519 cd /etc/mail/; make; make install 520 5. Restart sendmail: 521 cd /etc/mail/; make restart 522 523 A sendmail patch is coming, at which time this file will be 524 updated. 525 52620150604: 527 Generation of legacy formatted entries have been disabled by default 528 in pwd_mkdb(8), as all base system consumers of the legacy formatted 529 entries were converted to use the new format by default when the new, 530 machine independent format have been added and supported since FreeBSD 531 5.x. 532 533 Please see the pwd_mkdb(8) manual page for further details. 534 53520150525: 536 Clang and llvm have been upgraded to 3.6.1 release. Please see the 537 20141231 entry below for information about prerequisites and upgrading, 538 if you are not already using 3.5.0 or higher. 539 54020150521: 541 TI platform code switched to using vendor DTS files and this update 542 may break existing systems running on Beaglebone, Beaglebone Black, 543 and Pandaboard: 544 545 - dtb files should be regenerated/reinstalled. Filenames are the 546 same but content is different now 547 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 548 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 549 addressing scheme is now pin 25 on /dev/gpioc3. 550 - Pandaboard: /etc/ttys should be updated, serial console device is 551 now /dev/ttyu2, not /dev/ttyu0 552 55320150501: 554 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 555 If you need the GNU extension from groff soelim(1), install groff 556 from package: pkg install groff, or via ports: textproc/groff. 557 55820150423: 559 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 560 defined in symlink(7); previously symlinks were silently ignored. 561 56220150415: 563 The const qualifier has been removed from iconv(3) to comply with 564 POSIX. The ports tree is aware of this from r384038 onwards. 565 56620150416: 567 Libraries specified by LIBADD in Makefiles must have a corresponding 568 DPADD_<lib> variable to ensure correct dependencies. This is now 569 enforced in src.libnames.mk. 570 57120150324: 572 From legacy ata(4) driver was removed support for SATA controllers 573 supported by more functional drivers ahci(4), siis(4) and mvs(4). 574 Kernel modules ataahci and ataadaptec were removed completely, 575 replaced by ahci and mvs modules respectively. 576 57720150315: 578 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 579 the 20141231 entry below for information about prerequisites and 580 upgrading, if you are not already using 3.5.0 or higher. 581 58220150307: 583 The 32-bit PowerPC kernel has been changed to a position-independent 584 executable. This can only be booted with a version of loader(8) 585 newer than January 31, 2015, so make sure to update both world and 586 kernel before rebooting. 587 58820150217: 589 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 590 but before r278950, the RNG was not seeded properly. Immediately 591 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 592 ssh keys or openssl keys) that were generated w/ a kernel from that 593 range. This does not affect programs that directly used /dev/random 594 or /dev/urandom. All userland uses of arc4random(3) are affected. 595 59620150210: 597 The autofs(4) ABI was changed in order to restore binary compatibility 598 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 599 with the new kernel. 600 60120150131: 602 The powerpc64 kernel has been changed to a position-independent 603 executable. This can only be booted with a new version of loader(8), 604 so make sure to update both world and kernel before rebooting. 605 60620150118: 607 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 608 only release, no new features have been added. Please see the 20141231 609 entry below for information about prerequisites and upgrading, if you 610 are not already using 3.5.0. 611 61220150107: 613 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 614 taken from the ELF Tool Chain project rather than GNU binutils. They 615 should be drop-in replacements, with the addition of arm64 support. 616 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 617 binutils tools, if necessary. See 20150805 for updated information. 618 61920150105: 620 The default Unbound configuration now enables remote control 621 using a local socket. Users who have already enabled the 622 local_unbound service should regenerate their configuration 623 by running "service local_unbound setup" as root. 624 62520150102: 626 The GNU texinfo and GNU info pages have been removed. 627 To be able to view GNU info pages please install texinfo from ports. 628 62920141231: 630 Clang, llvm and lldb have been upgraded to 3.5.0 release. 631 632 As of this release, a prerequisite for building clang, llvm and lldb is 633 a C++11 capable compiler and C++11 standard library. This means that to 634 be able to successfully build the cross-tools stage of buildworld, with 635 clang as the bootstrap compiler, your system compiler or cross compiler 636 should either be clang 3.3 or later, or gcc 4.8 or later, and your 637 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 638 later. 639 640 On any standard FreeBSD 10.x or 11.x installation, where clang and 641 libc++ are on by default (that is, on x86 or arm), this should work out 642 of the box. 643 644 On 9.x installations where clang is enabled by default, e.g. on x86 and 645 powerpc, libc++ will not be enabled by default, so libc++ should be 646 built (with clang) and installed first. If both clang and libc++ are 647 missing, build clang first, then use it to build libc++. 648 649 On 8.x and earlier installations, upgrade to 9.x first, and then follow 650 the instructions for 9.x above. 651 652 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 653 default, and do not build clang. 654 655 Many embedded systems are resource constrained, and will not be able to 656 build clang in a reasonable time, or in some cases at all. In those 657 cases, cross building bootable systems on amd64 is a workaround. 658 659 This new version of clang introduces a number of new warnings, of which 660 the following are most likely to appear: 661 662 -Wabsolute-value 663 664 This warns in two cases, for both C and C++: 665 * When the code is trying to take the absolute value of an unsigned 666 quantity, which is effectively a no-op, and almost never what was 667 intended. The code should be fixed, if at all possible. If you are 668 sure that the unsigned quantity can be safely cast to signed, without 669 loss of information or undefined behavior, you can add an explicit 670 cast, or disable the warning. 671 672 * When the code is trying to take an absolute value, but the called 673 abs() variant is for the wrong type, which can lead to truncation. 674 If you want to disable the warning instead of fixing the code, please 675 make sure that truncation will not occur, or it might lead to unwanted 676 side-effects. 677 678 -Wtautological-undefined-compare and 679 -Wundefined-bool-conversion 680 681 These warn when C++ code is trying to compare 'this' against NULL, while 682 'this' should never be NULL in well-defined C++ code. However, there is 683 some legacy (pre C++11) code out there, which actively abuses this 684 feature, which was less strictly defined in previous C++ versions. 685 686 Squid and openjdk do this, for example. The warning can be turned off 687 for C++98 and earlier, but compiling the code in C++11 mode might result 688 in unexpected behavior; for example, the parts of the program that are 689 unreachable could be optimized away. 690 69120141222: 692 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 693 kernel sources have been removed. The .h files remain, since some 694 utilities include them. This will need to be fixed later. 695 If "mount -t oldnfs ..." is attempted, it will fail. 696 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 697 the utilities will report errors. 698 69920141121: 700 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 701 directories to top level SUBDIR variable when their parent 702 directory is included in LOCAL_DIRS. Users with build systems with 703 such hierarchies and without SUBDIR entries in the parent 704 directory Makefiles should add them or add the directories to 705 LOCAL_DIRS. 706 70720141109: 708 faith(4) and faithd(8) have been removed from the base system. Faith 709 has been obsolete for a very long time. 710 71120141104: 712 vt(4), the new console driver, is enabled by default. It brings 713 support for Unicode and double-width characters, as well as 714 support for UEFI and integration with the KMS kernel video 715 drivers. 716 717 You may need to update your console settings in /etc/rc.conf, 718 most probably the keymap. During boot, /etc/rc.d/syscons will 719 indicate what you need to do. 720 721 vt(4) still has issues and lacks some features compared to 722 syscons(4). See the wiki for up-to-date information: 723 https://wiki.freebsd.org/Newcons 724 725 If you want to keep using syscons(4), you can do so by adding 726 the following line to /boot/loader.conf: 727 kern.vty=sc 728 72920141102: 730 pjdfstest has been integrated into kyua as an opt-in test suite. 731 Please see share/doc/pjdfstest/README for more details on how to 732 execute it. 733 73420141009: 735 gperf has been removed from the base system for architectures 736 that use clang. Ports that require gperf will obtain it from the 737 devel/gperf port. 738 73920140923: 740 pjdfstest has been moved from tools/regression/pjdfstest to 741 contrib/pjdfstest . 742 74320140922: 744 At svn r271982, The default linux compat kernel ABI has been adjusted 745 to 2.6.18 in support of the linux-c6 compat ports infrastructure 746 update. If you wish to continue using the linux-f10 compat ports, 747 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 748 encouraged to update their linux-compat packages to linux-c6 during 749 their next update cycle. 750 75120140729: 752 The ofwfb driver, used to provide a graphics console on PowerPC when 753 using vt(4), no longer allows mmap() of all physical memory. This 754 will prevent Xorg on PowerPC with some ATI graphics cards from 755 initializing properly unless x11-servers/xorg-server is updated to 756 1.12.4_8 or newer. 757 75820140723: 759 The xdev targets have been converted to using TARGET and 760 TARGET_ARCH instead of XDEV and XDEV_ARCH. 761 76220140719: 763 The default unbound configuration has been modified to address 764 issues with reverse lookups on networks that use private 765 address ranges. If you use the local_unbound service, run 766 "service local_unbound setup" as root to regenerate your 767 configuration, then "service local_unbound reload" to load the 768 new configuration. 769 77020140709: 771 The GNU texinfo and GNU info pages are not built and installed 772 anymore, WITH_INFO knob has been added to allow to built and install 773 them again. 774 UPDATE: see 20150102 entry on texinfo's removal 775 77620140708: 777 The GNU readline library is now an INTERNALLIB - that is, it is 778 statically linked into consumers (GDB and variants) in the base 779 system, and the shared library is no longer installed. The 780 devel/readline port is available for third party software that 781 requires readline. 782 78320140702: 784 The Itanium architecture (ia64) has been removed from the list of 785 known architectures. This is the first step in the removal of the 786 architecture. 787 78820140701: 789 Commit r268115 has added NFSv4.1 server support, merged from 790 projects/nfsv4.1-server. Since this includes changes to the 791 internal interfaces between the NFS related modules, a full 792 build of the kernel and modules will be necessary. 793 __FreeBSD_version has been bumped. 794 79520140629: 796 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 797 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 798 which differs from the behaviour controlled by this knob.) 799 80020140619: 801 Maximal length of the serial number in CTL was increased from 16 to 802 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 803 and ctld, need to be rebuilt to work with a new kernel. 804 80520140606: 806 The libatf-c and libatf-c++ major versions were downgraded to 0 and 807 1 respectively to match the upstream numbers. They were out of 808 sync because, when they were originally added to FreeBSD, the 809 upstream versions were not respected. These libraries are private 810 and not yet built by default, so renumbering them should be a 811 non-issue. However, unclean source trees will yield broken test 812 programs once the operator executes "make delete-old-libs" after a 813 "make installworld". 814 815 Additionally, the atf-sh binary was made private by moving it into 816 /usr/libexec/. Already-built shell test programs will keep the 817 path to the old binary so they will break after "make delete-old" 818 is run. 819 820 If you are using WITH_TESTS=yes (not the default), wipe the object 821 tree and rebuild from scratch to prevent spurious test failures. 822 This is only needed once: the misnumbered libraries and misplaced 823 binaries have been added to OptionalObsoleteFiles.inc so they will 824 be removed during a clean upgrade. 825 82620140512: 827 Clang and llvm have been upgraded to 3.4.1 release. 828 82920140508: 830 We bogusly installed src.opts.mk in /usr/share/mk. This file should 831 be removed to avoid issues in the future (and has been added to 832 ObsoleteFiles.inc). 833 83420140505: 835 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 836 past, it affected all builds that used the bsd.*.mk files. The old 837 behavior was a bug, but people may have relied upon it. To get this 838 behavior back, you can .include /etc/src.conf from /etc/make.conf 839 (which is still global and isn't changed). This also changes the 840 behavior of incremental builds inside the tree of individual 841 directories. Set MAKESYSPATH to ".../share/mk" to do that. 842 Although this has survived make universe and some upgrade scenarios, 843 other upgrade scenarios may have broken. At least one form of 844 temporary breakage was fixed with MAKESYSPATH settings for buildworld 845 as well... In cases where MAKESYSPATH isn't working with this 846 setting, you'll need to set it to the full path to your tree. 847 848 One side effect of all this cleaning up is that bsd.compiler.mk 849 is no longer implicitly included by bsd.own.mk. If you wish to 850 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 851 as well. 852 85320140430: 854 The lindev device has been removed since /dev/full has been made a 855 standard device. __FreeBSD_version has been bumped. 856 85720140424: 858 The knob WITHOUT_VI was added to the base system, which controls 859 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 860 in order to reorder files share/termcap and didn't build ex(1) as a 861 build tool, so building/installing with WITH_VI is highly advised for 862 build hosts for older releases. 863 864 This issue has been fixed in stable/9 and stable/10 in r277022 and 865 r276991, respectively. 866 86720140418: 868 The YES_HESIOD knob has been removed. It has been obsolete for 869 a decade. Please move to using WITH_HESIOD instead or your builds 870 will silently lack HESIOD. 871 87220140405: 873 The uart(4) driver has been changed with respect to its handling 874 of the low-level console. Previously the uart(4) driver prevented 875 any process from changing the baudrate or the CLOCAL and HUPCL 876 control flags. By removing the restrictions, operators can make 877 changes to the serial console port without having to reboot. 878 However, when getty(8) is started on the serial device that is 879 associated with the low-level console, a misconfigured terminal 880 line in /etc/ttys will now have a real impact. 881 Before upgrading the kernel, make sure that /etc/ttys has the 882 serial console device configured as 3wire without baudrate to 883 preserve the previous behaviour. E.g: 884 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 885 88620140306: 887 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 888 to improve performance. To re-enable it, if needed, run rpcbind 889 with command line option -W. 890 89120140226: 892 Switched back to the GPL dtc compiler due to updates in the upstream 893 dts files not being supported by the BSDL dtc compiler. You will need 894 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 895 may result while building dtb files during a kernel build if you fail 896 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 897 89820140216: 899 Clang and llvm have been upgraded to 3.4 release. 900 90120140216: 902 The nve(4) driver has been removed. Please use the nfe(4) driver 903 for NVIDIA nForce MCP Ethernet adapters instead. 904 90520140212: 906 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 907 This could cause certain C++ applications using shared libraries built 908 against the previous version of libc++ to crash. The incompatibility 909 has now been fixed, but any C++ applications or shared libraries built 910 between r261283 and r261801 should be recompiled. 911 91220140204: 913 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 914 capability mode support. Please note that enabling the feature in 915 kernel is still highly recommended. 916 91720140131: 918 OpenSSH is now built with sandbox support, and will use sandbox as 919 the default privilege separation method. This requires Capsicum 920 capability mode support in kernel. 921 92220140128: 923 The libelf and libdwarf libraries have been updated to newer 924 versions from upstream. Shared library version numbers for 925 these two libraries were bumped. Any ports or binaries 926 requiring these two libraries should be recompiled. 927 __FreeBSD_version is bumped to 1100006. 928 92920140110: 930 If a Makefile in a tests/ directory was auto-generating a Kyuafile 931 instead of providing an explicit one, this would prevent such 932 Makefile from providing its own Kyuafile in the future during 933 NO_CLEAN builds. This has been fixed in the Makefiles but manual 934 intervention is needed to clean an objdir if you use NO_CLEAN: 935 # find /usr/obj -name Kyuafile | xargs rm -f 936 93720131213: 938 The behavior of gss_pseudo_random() for the krb5 mechanism 939 has changed, for applications requesting a longer random string 940 than produced by the underlying enctype's pseudo-random() function. 941 In particular, the random string produced from a session key of 942 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 943 be different at the 17th octet and later, after this change. 944 The counter used in the PRF+ construction is now encoded as a 945 big-endian integer in accordance with RFC 4402. 946 __FreeBSD_version is bumped to 1100004. 947 94820131108: 949 The WITHOUT_ATF build knob has been removed and its functionality 950 has been subsumed into the more generic WITHOUT_TESTS. If you were 951 using the former to disable the build of the ATF libraries, you 952 should change your settings to use the latter. 953 95420131025: 955 The default version of mtree is nmtree which is obtained from 956 NetBSD. The output is generally the same, but may vary 957 slightly. If you found you need identical output adding 958 "-F freebsd9" to the command line should do the trick. For the 959 time being, the old mtree is available as fmtree. 960 96120131014: 962 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 963 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 964 1.1.4_8 and verify bsdyml not linked in, before running "make 965 delete-old-libs": 966 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 967 or 968 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 969 97020131010: 971 The stable/10 branch has been created in subversion from head 972 revision r256279. 973 97420131010: 975 The rc.d/jail script has been updated to support jail(8) 976 configuration file. The "jail_<jname>_*" rc.conf(5) variables 977 for per-jail configuration are automatically converted to 978 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 979 This is transparently backward compatible. See below about some 980 incompatibilities and rc.conf(5) manual page for more details. 981 982 These variables are now deprecated in favor of jail(8) configuration 983 file. One can use "rc.d/jail config <jname>" command to generate 984 a jail(8) configuration file in /var/run/jail.<jname>.conf without 985 running the jail(8) utility. The default pathname of the 986 configuration file is /etc/jail.conf and can be specified by 987 using $jail_conf or $jail_<jname>_conf variables. 988 989 Please note that jail_devfs_ruleset accepts an integer at 990 this moment. Please consider to rewrite the ruleset name 991 with an integer. 992 99320130930: 994 BIND has been removed from the base system. If all you need 995 is a local resolver, simply enable and start the local_unbound 996 service instead. Otherwise, several versions of BIND are 997 available in the ports tree. The dns/bind99 port is one example. 998 999 With this change, nslookup(1) and dig(1) are no longer in the base 1000 system. Users should instead use host(1) and drill(1) which are 1001 in the base system. Alternatively, nslookup and dig can 1002 be obtained by installing the dns/bind-tools port. 1003 100420130916: 1005 With the addition of unbound(8), a new unbound user is now 1006 required during installworld. "mergemaster -p" can be used to 1007 add the user prior to installworld, as documented in the handbook. 1008 100920130911: 1010 OpenSSH is now built with DNSSEC support, and will by default 1011 silently trust signed SSHFP records. This can be controlled with 1012 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1013 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1014 101520130906: 1016 The GNU Compiler Collection and C++ standard library (libstdc++) 1017 are no longer built by default on platforms where clang is the system 1018 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1019 options in src.conf. 1020 102120130905: 1022 The PROCDESC kernel option is now part of the GENERIC kernel 1023 configuration and is required for the rwhod(8) to work. 1024 If you are using custom kernel configuration, you should include 1025 'options PROCDESC'. 1026 102720130905: 1028 The API and ABI related to the Capsicum framework was modified 1029 in backward incompatible way. The userland libraries and programs 1030 have to be recompiled to work with the new kernel. This includes the 1031 following libraries and programs, but the whole buildworld is 1032 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1033 kdump, procstat, rwho, rwhod, uniq. 1034 103520130903: 1036 AES-NI intrinsic support has been added to gcc. The AES-NI module 1037 has been updated to use this support. A new gcc is required to build 1038 the aesni module on both i386 and amd64. 1039 104020130821: 1041 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1042 Thus "device padlock_rng" and "device rdrand_rng" should be 1043 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1044 104520130813: 1046 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1047 enables just the iconv* functionality and is now on by default. 1048 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1049 compatibility. Set WITHOUT_ICONV to build the old way. 1050 If you have been using WITH_ICONV before, you will very likely 1051 need to turn on WITH_LIBICONV_COMPAT. 1052 105320130806: 1054 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1055 Illumos origin, including ZFS. If you have INVARIANTS in your 1056 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1057 explicitly. 1058 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1059 locks if WITNESS option was set. Because that generated a lot of 1060 witness(9) reports and all of them were believed to be false 1061 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1062 can be used to achieve the previous behavior. 1063 106420130806: 1065 Timer values in IPv6 data structures now use time_uptime instead 1066 of time_second. Although this is not a user-visible functional 1067 change, userland utilities which directly use them---ndp(8), 1068 rtadvd(8), and rtsold(8) in the base system---need to be updated 1069 to r253970 or later. 1070 107120130802: 1072 find -delete can now delete the pathnames given as arguments, 1073 instead of only files found below them or if the pathname did 1074 not contain any slashes. Formerly, the following error message 1075 would result: 1076 1077 find: -delete: <path>: relative path potentially not safe 1078 1079 Deleting the pathnames given as arguments can be prevented 1080 without error messages using -mindepth 1 or by changing 1081 directory and passing "." as argument to find. This works in the 1082 old as well as the new version of find. 1083 108420130726: 1085 Behavior of devfs rules path matching has been changed. 1086 Pattern is now always matched against fully qualified devfs 1087 path and slash characters must be explicitly matched by 1088 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1089 subdirectories must be reviewed. 1090 109120130716: 1092 The default ARM ABI has changed to the ARM EABI. The old ABI is 1093 incompatible with the ARM EABI and all programs and modules will 1094 need to be rebuilt to work with a new kernel. 1095 1096 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1097 1098 NOTE: Support for the old ABI will be removed in the future and 1099 users are advised to upgrade. 1100 110120130709: 1102 pkg_install has been disconnected from the build if you really need it 1103 you should add WITH_PKGTOOLS in your src.conf(5). 1104 110520130709: 1106 Most of network statistics structures were changed to be able 1107 keep 64-bits counters. Thus all tools, that work with networking 1108 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1109 111020130618: 1111 Fix a bug that allowed a tracing process (e.g. gdb) to write 1112 to a memory-mapped file in the traced process's address space 1113 even if neither the traced process nor the tracing process had 1114 write access to that file. 1115 111620130615: 1117 CVS has been removed from the base system. An exact copy 1118 of the code is available from the devel/cvs port. 1119 112020130613: 1121 Some people report the following error after the switch to bmake: 1122 1123 make: illegal option -- J 1124 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1125 ... 1126 *** [buildworld] Error code 2 1127 1128 this likely due to an old instance of make in 1129 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1130 which src/Makefile will use that blindly, if it exists, so if 1131 you see the above error: 1132 1133 rm -rf `make -V MAKEPATH` 1134 1135 should resolve it. 1136 113720130516: 1138 Use bmake by default. 1139 Whereas before one could choose to build with bmake via 1140 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1141 make. The goal is to remove these knobs for 10-RELEASE. 1142 1143 It is worth noting that bmake (like gmake) treats the command 1144 line as the unit of failure, rather than statements within the 1145 command line. Thus '(cd some/where && dosomething)' is safer 1146 than 'cd some/where; dosomething'. The '()' allows consistent 1147 behavior in parallel build. 1148 114920130429: 1150 Fix a bug that allows NFS clients to issue READDIR on files. 1151 115220130426: 1153 The WITHOUT_IDEA option has been removed because 1154 the IDEA patent expired. 1155 115620130426: 1157 The sysctl which controls TRIM support under ZFS has been renamed 1158 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1159 enabled by default. 1160 116120130425: 1162 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1163 rather than creating it's own in the temporary directory in 1164 order allow access to bootstrapped versions of tools such as 1165 install and mtree. When upgrading from version of FreeBSD where 1166 the install command does not support -l, you will need to 1167 install a new mergemaster command if mergemaster -p is required. 1168 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1169 && make install). 1170 117120130404: 1172 Legacy ATA stack, disabled and replaced by new CAM-based one since 1173 FreeBSD 9.0, completely removed from the sources. Kernel modules 1174 atadisk and atapi*, user-level tools atacontrol and burncd are 1175 removed. Kernel option `options ATA_CAM` is now permanently enabled 1176 and removed. 1177 117820130319: 1179 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1180 and socketpair(2). Software, in particular Kerberos, may 1181 automatically detect and use these during building. The resulting 1182 binaries will not work on older kernels. 1183 118420130308: 1185 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1186 information, see the respective 20130304 entry). 1187 118820130304: 1189 Recent commits to callout(9) changed the size of struct callout, 1190 so the KBI is probably heavily disturbed. Also, some functions 1191 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1192 by macros. Every kernel module using it won't load, so rebuild 1193 is requested. 1194 1195 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1196 but does not initialize by default (because of the new CTL_DISABLE 1197 option) to save memory. To re-enable it, remove the CTL_DISABLE 1198 option from the kernel config file or set kern.cam.ctl.disable=0 1199 in /boot/loader.conf. 1200 120120130301: 1202 The ctl device has been disabled in GENERIC for i386 and amd64. 1203 This was done due to the extra memory being allocated at system 1204 initialisation time by the ctl driver which was only used if 1205 a CAM target device was created. This makes a FreeBSD system 1206 unusable on 128MB or less of RAM. 1207 120820130208: 1209 A new compression method (lz4) has been merged to -HEAD. Please 1210 refer to zpool-features(7) for more information. 1211 1212 Please refer to the "ZFS notes" section of this file for information 1213 on upgrading boot ZFS pools. 1214 121520130129: 1216 A BSD-licensed patch(1) variant has been added and is installed 1217 as bsdpatch, being the GNU version the default patch. 1218 To inverse the logic and use the BSD-licensed one as default, 1219 while having the GNU version installed as gnupatch, rebuild 1220 and install world with the WITH_BSD_PATCH knob set. 1221 122220130121: 1223 Due to the use of the new -l option to install(1) during build 1224 and install, you must take care not to directly set the INSTALL 1225 make variable in your /etc/make.conf, /etc/src.conf, or on the 1226 command line. If you wish to use the -C flag for all installs 1227 you may be able to add INSTALL+=-C to /etc/make.conf or 1228 /etc/src.conf. 1229 123020130118: 1231 The install(1) option -M has changed meaning and now takes an 1232 argument that is a file or path to append logs to. In the 1233 unlikely event that -M was the last option on the command line 1234 and the command line contained at least two files and a target 1235 directory the first file will have logs appended to it. The -M 1236 option served little practical purpose in the last decade so its 1237 use is expected to be extremely rare. 1238 123920121223: 1240 After switching to Clang as the default compiler some users of ZFS 1241 on i386 systems started to experience stack overflow kernel panics. 1242 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1243 124420121222: 1245 GEOM_LABEL now mangles label names read from file system metadata. 1246 Mangling affect labels containing spaces, non-printable characters, 1247 '%' or '"'. Device names in /etc/fstab and other places may need to 1248 be updated. 1249 125020121217: 1251 By default, only the 10 most recent kernel dumps will be saved. To 1252 restore the previous behaviour (no limit on the number of kernel dumps 1253 stored in the dump directory) add the following line to /etc/rc.conf: 1254 1255 savecore_flags="" 1256 125720121201: 1258 With the addition of auditdistd(8), a new auditdistd user is now 1259 required during installworld. "mergemaster -p" can be used to 1260 add the user prior to installworld, as documented in the handbook. 1261 126220121117: 1263 The sin6_scope_id member variable in struct sockaddr_in6 is now 1264 filled by the kernel before passing the structure to the userland via 1265 sysctl or routing socket. This means the KAME-specific embedded scope 1266 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1267 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1268 __FreeBSD_version is bumped to 1000025. 1269 127020121105: 1271 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1272 This means that the world and kernel will be compiled with clang 1273 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1274 and /usr/bin/cpp. To disable this behavior and revert to building 1275 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1276 of current may need to bootstrap WITHOUT_CLANG first if the clang 1277 build fails (its compatibility window doesn't extend to the 9 stable 1278 branch point). 1279 128020121102: 1281 The IPFIREWALL_FORWARD kernel option has been removed. Its 1282 functionality now turned on by default. 1283 128420121023: 1285 The ZERO_COPY_SOCKET kernel option has been removed and 1286 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1287 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1288 mechanism which is not safe and may result in kernel crashes. 1289 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1290 driver supports disposeable external page sized mbuf storage. 1291 Proper replacements for both zero-copy mechanisms are under 1292 consideration and will eventually lead to complete removal 1293 of the two kernel options. 1294 129520121023: 1296 The IPv4 network stack has been converted to network byte 1297 order. The following modules need to be recompiled together 1298 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1299 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1300 130120121022: 1302 Support for non-MPSAFE filesystems was removed from VFS. The 1303 VFS_VERSION was bumped, all filesystem modules shall be 1304 recompiled. 1305 130620121018: 1307 All the non-MPSAFE filesystems have been disconnected from 1308 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1309 portalfs, smbfs, xfs. 1310 131120121016: 1312 The interface cloning API and ABI has changed. The following 1313 modules need to be recompiled together with kernel: 1314 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1315 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1316 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1317 131820121015: 1319 The sdhci driver was split in two parts: sdhci (generic SD Host 1320 Controller logic) and sdhci_pci (actual hardware driver). 1321 No kernel config modifications are required, but if you 1322 load sdhc as a module you must switch to sdhci_pci instead. 1323 132420121014: 1325 Import the FUSE kernel and userland support into base system. 1326 132720121013: 1328 The GNU sort(1) program has been removed since the BSD-licensed 1329 sort(1) has been the default for quite some time and no serious 1330 problems have been reported. The corresponding WITH_GNU_SORT 1331 knob has also gone. 1332 133320121006: 1334 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1335 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1336 with new kernel. 1337 133820121001: 1339 The net80211(4) ABI has been changed to allow for improved driver 1340 PS-POLL and power-save support. All wireless drivers need to be 1341 recompiled to work with the new kernel. 1342 134320120913: 1344 The random(4) support for the VIA hardware random number 1345 generator (`PADLOCK') is no longer enabled unconditionally. 1346 Add the padlock_rng device in the custom kernel config if 1347 needed. The GENERIC kernels on i386 and amd64 do include the 1348 device, so the change only affects the custom kernel 1349 configurations. 1350 135120120908: 1352 The pf(4) packet filter ABI has been changed. pfctl(8) and 1353 snmp_pf module need to be recompiled to work with new kernel. 1354 135520120828: 1356 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1357 to -HEAD. Pools that have empty_bpobj in active state can not be 1358 imported read-write with ZFS implementations that do not support 1359 this feature. For more information read the zpool-features(5) 1360 manual page. 1361 136220120727: 1363 The sparc64 ZFS loader has been changed to no longer try to auto- 1364 detect ZFS providers based on diskN aliases but now requires these 1365 to be explicitly listed in the OFW boot-device environment variable. 1366 136720120712: 1368 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1369 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1370 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1371 137220120712: 1373 The following sysctls and tunables have been renamed for consistency 1374 with other variables: 1375 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1376 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1377 137820120628: 1379 The sort utility has been replaced with BSD sort. For now, GNU sort 1380 is also available as "gnusort" or the default can be set back to 1381 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1382 installed as "bsdsort". 1383 138420120611: 1385 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1386 Starting with this version the old system of ZFS pool versioning 1387 is superseded by "feature flags". This concept enables forward 1388 compatibility against certain future changes in functionality of ZFS 1389 pools. The first read-only compatible "feature flag" for ZFS pools 1390 is named "com.delphix:async_destroy". For more information 1391 read the new zpool-features(5) manual page. 1392 Please refer to the "ZFS notes" section of this file for information 1393 on upgrading boot ZFS pools. 1394 139520120417: 1396 The malloc(3) implementation embedded in libc now uses sources imported 1397 as contrib/jemalloc. The most disruptive API change is to 1398 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1399 delete it prior to installworld, and optionally re-create it using the 1400 new format after rebooting. See malloc.conf(5) for details 1401 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1402 NAMESPACE section). 1403 140420120328: 1405 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1406 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1407 now spelled mips. This is to aid compatibility with third-party 1408 software that expects this naming scheme in uname(3). Little-endian 1409 settings are unchanged. If you are updating a big-endian mips64 machine 1410 from before this change, you may need to set MACHINE_ARCH=mips64 in 1411 your environment before the new build system will recognize your machine. 1412 141320120306: 1414 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1415 platforms. 1416 141720120229: 1418 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1419 nullfs(5) did not pass through all behaviours to the underlying layer, 1420 as a result if we bound to a socket on the lower layer we could connect 1421 only to the lower path; if we bound to the upper layer we could connect 1422 only to the upper path. The new behavior is one can connect to both the 1423 lower and the upper paths regardless what layer path one binds to. 1424 142520120211: 1426 The getifaddrs upgrade path broken with 20111215 has been restored. 1427 If you have upgraded in between 20111215 and 20120209 you need to 1428 recompile libc again with your kernel. You still need to recompile 1429 world to be able to configure CARP but this restriction already 1430 comes from 20111215. 1431 143220120114: 1433 The set_rcvar() function has been removed from /etc/rc.subr. All 1434 base and ports rc.d scripts have been updated, so if you have a 1435 port installed with a script in /usr/local/etc/rc.d you can either 1436 hand-edit the rcvar= line, or reinstall the port. 1437 1438 An easy way to handle the mass-update of /etc/rc.d: 1439 rm /etc/rc.d/* && mergemaster -i 1440 144120120109: 1442 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1443 on the current CPU and prevents other threads from running. 1444 This behavior can be reverted using the kern.stop_scheduler_on_panic 1445 tunable/sysctl. 1446 The new behavior can be incompatible with kern.sync_on_panic. 1447 144820111215: 1449 The carp(4) facility has been changed significantly. Configuration 1450 of the CARP protocol via ifconfig(8) has changed, as well as format 1451 of CARP events submitted to devd(8) has changed. See manual pages 1452 for more information. The arpbalance feature of carp(4) is currently 1453 not supported anymore. 1454 1455 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1456 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1457 need to be recompiled. 1458 145920111122: 1460 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1461 /dev/wmistat0. 1462 146320111108: 1464 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1465 explicitely support non-MPSAFE filesystems. 1466 It is on by default for all supported platform at this present 1467 time. 1468 146920111101: 1470 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1471 i386 and pc98 GENERIC kernel configuration files. 1472 147320110930: 1474 sysinstall has been removed 1475 147620110923: 1477 The stable/9 branch created in subversion. This corresponds to the 1478 RELENG_9 branch in CVS. 1479 1480COMMON ITEMS: 1481 1482 General Notes 1483 ------------- 1484 Avoid using make -j when upgrading. While generally safe, there are 1485 sometimes problems using -j to upgrade. If your upgrade fails with 1486 -j, please try again without -j. From time to time in the past there 1487 have been problems using -j with buildworld and/or installworld. This 1488 is especially true when upgrading between "distant" versions (eg one 1489 that cross a major release boundary or several minor releases, or when 1490 several months have passed on the -current branch). 1491 1492 Sometimes, obscure build problems are the result of environment 1493 poisoning. This can happen because the make utility reads its 1494 environment when searching for values for global variables. To run 1495 your build attempts in an "environmental clean room", prefix all make 1496 commands with 'env -i '. See the env(1) manual page for more details. 1497 1498 When upgrading from one major version to another it is generally best 1499 to upgrade to the latest code in the currently installed branch first, 1500 then do an upgrade to the new branch. This is the best-tested upgrade 1501 path, and has the highest probability of being successful. Please try 1502 this approach before reporting problems with a major version upgrade. 1503 1504 When upgrading a live system, having a root shell around before 1505 installing anything can help undo problems. Not having a root shell 1506 around can lead to problems if pam has changed too much from your 1507 starting point to allow continued authentication after the upgrade. 1508 1509 This file should be read as a log of events. When a later event changes 1510 information of a prior event, the prior event should not be deleted. 1511 Instead, a pointer to the entry with the new information should be 1512 placed in the old entry. Readers of this file should also sanity check 1513 older entries before relying on them blindly. Authors of new entries 1514 should write them with this in mind. 1515 1516 ZFS notes 1517 --------- 1518 When upgrading the boot ZFS pool to a new version, always follow 1519 these two steps: 1520 1521 1.) recompile and reinstall the ZFS boot loader and boot block 1522 (this is part of "make buildworld" and "make installworld") 1523 1524 2.) update the ZFS boot block on your boot drive 1525 1526 The following example updates the ZFS boot block on the first 1527 partition (freebsd-boot) of a GPT partitioned drive ada0: 1528 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1529 1530 Non-boot pools do not need these updates. 1531 1532 To build a kernel 1533 ----------------- 1534 If you are updating from a prior version of FreeBSD (even one just 1535 a few days old), you should follow this procedure. It is the most 1536 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1537 1538 make kernel-toolchain 1539 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1540 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1541 1542 To test a kernel once 1543 --------------------- 1544 If you just want to boot a kernel once (because you are not sure 1545 if it works, or if you want to boot a known bad kernel to provide 1546 debugging information) run 1547 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1548 nextboot -k testkernel 1549 1550 To just build a kernel when you know that it won't mess you up 1551 -------------------------------------------------------------- 1552 This assumes you are already running a CURRENT system. Replace 1553 ${arch} with the architecture of your machine (e.g. "i386", 1554 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1555 1556 cd src/sys/${arch}/conf 1557 config KERNEL_NAME_HERE 1558 cd ../compile/KERNEL_NAME_HERE 1559 make depend 1560 make 1561 make install 1562 1563 If this fails, go to the "To build a kernel" section. 1564 1565 To rebuild everything and install it on the current system. 1566 ----------------------------------------------------------- 1567 # Note: sometimes if you are running current you gotta do more than 1568 # is listed here if you are upgrading from a really old current. 1569 1570 <make sure you have good level 0 dumps> 1571 make buildworld 1572 make kernel KERNCONF=YOUR_KERNEL_HERE 1573 [1] 1574 <reboot in single user> [3] 1575 mergemaster -Fp [5] 1576 make installworld 1577 mergemaster -Fi [4] 1578 make delete-old [6] 1579 <reboot> 1580 1581 To cross-install current onto a separate partition 1582 -------------------------------------------------- 1583 # In this approach we use a separate partition to hold 1584 # current's root, 'usr', and 'var' directories. A partition 1585 # holding "/", "/usr" and "/var" should be about 2GB in 1586 # size. 1587 1588 <make sure you have good level 0 dumps> 1589 <boot into -stable> 1590 make buildworld 1591 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1592 <maybe newfs current's root partition> 1593 <mount current's root partition on directory ${CURRENT_ROOT}> 1594 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1595 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1596 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1597 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1598 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1599 <reboot into current> 1600 <do a "native" rebuild/install as described in the previous section> 1601 <maybe install compatibility libraries from ports/misc/compat*> 1602 <reboot> 1603 1604 1605 To upgrade in-place from stable to current 1606 ---------------------------------------------- 1607 <make sure you have good level 0 dumps> 1608 make buildworld [9] 1609 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1610 [1] 1611 <reboot in single user> [3] 1612 mergemaster -Fp [5] 1613 make installworld 1614 mergemaster -Fi [4] 1615 make delete-old [6] 1616 <reboot> 1617 1618 Make sure that you've read the UPDATING file to understand the 1619 tweaks to various things you need. At this point in the life 1620 cycle of current, things change often and you are on your own 1621 to cope. The defaults can also change, so please read ALL of 1622 the UPDATING entries. 1623 1624 Also, if you are tracking -current, you must be subscribed to 1625 freebsd-current@freebsd.org. Make sure that before you update 1626 your sources that you have read and understood all the recent 1627 messages there. If in doubt, please track -stable which has 1628 much fewer pitfalls. 1629 1630 [1] If you have third party modules, such as vmware, you 1631 should disable them at this point so they don't crash your 1632 system on reboot. 1633 1634 [3] From the bootblocks, boot -s, and then do 1635 fsck -p 1636 mount -u / 1637 mount -a 1638 cd src 1639 adjkerntz -i # if CMOS is wall time 1640 Also, when doing a major release upgrade, it is required that 1641 you boot into single user mode to do the installworld. 1642 1643 [4] Note: This step is non-optional. Failure to do this step 1644 can result in a significant reduction in the functionality of the 1645 system. Attempting to do it by hand is not recommended and those 1646 that pursue this avenue should read this file carefully, as well 1647 as the archives of freebsd-current and freebsd-hackers mailing lists 1648 for potential gotchas. The -U option is also useful to consider. 1649 See mergemaster(8) for more information. 1650 1651 [5] Usually this step is a noop. However, from time to time 1652 you may need to do this if you get unknown user in the following 1653 step. It never hurts to do it all the time. You may need to 1654 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1655 install) after the buildworld before this step if you last updated 1656 from current before 20130425 or from -stable before 20130430. 1657 1658 [6] This only deletes old files and directories. Old libraries 1659 can be deleted by "make delete-old-libs", but you have to make 1660 sure that no program is using those libraries anymore. 1661 1662 [8] In order to have a kernel that can run the 4.x binaries needed to 1663 do an installworld, you must include the COMPAT_FREEBSD4 option in 1664 your kernel. Failure to do so may leave you with a system that is 1665 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1666 required to run the 5.x binaries on more recent kernels. And so on 1667 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1668 1669 Make sure that you merge any new devices from GENERIC since the 1670 last time you updated your kernel config file. 1671 1672 [9] When checking out sources, you must include the -P flag to have 1673 cvs prune empty directories. 1674 1675 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1676 "?=" instead of the "=" assignment operator, so that buildworld can 1677 override the CPUTYPE if it needs to. 1678 1679 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1680 not on the command line, or in /etc/make.conf. buildworld will 1681 warn if it is improperly defined. 1682FORMAT: 1683 1684This file contains a list, in reverse chronological order, of major 1685breakages in tracking -current. It is not guaranteed to be a complete 1686list of such breakages, and only contains entries since September 23, 2011. 1687If you need to see UPDATING entries from before that date, you will need 1688to fetch an UPDATING file from an older FreeBSD release. 1689 1690Copyright information: 1691 1692Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1693 1694Redistribution, publication, translation and use, with or without 1695modification, in full or in part, in any form or format of this 1696document are permitted without further permission from the author. 1697 1698THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1699IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1700WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1701DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1702INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1703(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1704SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1705HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1706STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1707IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1708POSSIBILITY OF SUCH DAMAGE. 1709 1710Contact Warner Losh if you have any questions about your use of 1711this document. 1712 1713$FreeBSD: stable/11/UPDATING 324110 2017-09-29 23:05:56Z dim $ 1714