UPDATING revision 322807
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 1920170822: 20 Since the switch to GPT disk labels, fsck for UFS/FFS has been 21 unable to automatically find alternate superblocks. As of r322806, 22 the information needed to find alternate superblocks has been 23 moved to the end of the area reserved for the boot block. 24 Filesystems created with a newfs of this vintage or later 25 will create the recovery information. If you have a filesystem 26 created prior to this change and wish to have a recovery block 27 created for your filesystem, you can do so by running fsck in 28 forground mode (i.e., do not use the -p or -y options). As it 29 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 30 to which you should answer yes. 31 3220170518: 33 arm64 builds now use the base system LLD 4.0.0 linker by default, 34 instead of requiring that the aarch64-binutils port or package be 35 installed. To continue using aarch64-binutils, set 36 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 37 3820170529: 39 The ctl.ko module no longer implements the iSCSI target frontend: 40 cfiscsi.ko does instead. 41 42 If building cfiscsi.ko as a kernel module, the module can be loaded 43 via one of the following methods: 44 - `cfiscsi_load="YES"` in loader.conf(5). 45 - Add `cfiscsi` to `$kld_list` in rc.conf(5). 46 - ctladm(8)/ctld(8), when compiled with iSCSI support 47 (`WITH_ISCSI=yes` in src.conf(5)) 48 49 Please see cfiscsi(4) for more details. 50 5120170511: 52 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 53 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 54 same source (previously, the dependency of mmcsd.ko on mmc.ko was 55 missing, but mmcsd.ko now will refuse to load if it is incompatible 56 with mmc.ko). 57 5820170414: 59 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 60 use any explicitly assigned loopback address available in the jail 61 instead of using the first assigned address of the jail. 62 6320170413: 64 As of r316810 for ipfilter, keep frags is no longer assumed when 65 keep state is specified in a rule. r316810 aligns ipfilter with 66 documentation in man pages separating keep frags from keep state. 67 This allows keep state to specified without forcing keep frags 68 and allows keep frags to be specified independently of keep state. 69 To maintain previous behaviour, also specify keep frags with 70 keep state (as documented in ipf.conf.5). 71 7220170402: 73 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 74 Please see the 20141231 entry below for information about prerequisites 75 and upgrading, if you are not already using clang 3.5.0 or higher. 76 7720170323: 78 The code that provides support for ZFS .zfs/ directory functionality 79 has been reimplemented. It's not possible now to create a snapshot 80 by mkdir under .zfs/snapshot/. That should be the only user visible 81 change. 82 8320170319: 84 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT 85 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of 86 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed, 87 and now NAT-T is supported by default. Security associations now use 88 the single namespace for SPI allocation, so if you use several manually 89 configured security associations with the same SPI, this configuration 90 needs modification. 91 9220161217: 93 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 94 Please see the 20141231 entry below for information about prerequisites 95 and upgrading, if you are not already using clang 3.5.0 or higher. 96 9720161124: 98 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 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 10220161119: 103 The layout of the pmap structure has changed for powerpc to put the pmap 104 statistics at the front for all CPU variations. libkvm(3) and all tools 105 that link against it need to be recompiled. 106 10720161030: 108 isl(4) and cyapa(4) drivers now require a new driver, 109 chromebook_platform(4), to work properly on Chromebook-class hardware. 110 On other types of hardware the drivers may need to be configured using 111 device hints. Please see the corresponding manual pages for details. 112 11320161210: 114 Relocatable object files with the extension of .So have been renamed 115 to use an extension of .pico instead. The purpose of this change is 116 to avoid a name clash with shared libraries on case-insensitive file 117 systems. On those file systems, foo.So is the same file as foo.so. 118 11920160622: 120 The libc stub for the pipe(2) system call has been replaced with 121 a wrapper that calls the pipe2(2) system call and the pipe(2) 122 system call is now only implemented by the kernels that include 123 "options COMPAT_FREEBSD10" in their config file (this is the 124 default). Users should ensure that this option is enabled in 125 their kernel or upgrade userspace to r302092 before upgrading their 126 kernel. 127 12820160527: 129 CAM will now strip leading spaces from SCSI disks' serial numbers. 130 This will effect users who create UFS filesystems on SCSI disks using 131 those disk's diskid device nodes. For example, if /etc/fstab 132 previously contained a line like 133 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 134 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 135 transforms like gmirror may also be affected. ZFS users should 136 generally be fine. 137 13820160523: 139 The bitstring(3) API has been updated with new functionality and 140 improved performance. But it is binary-incompatible with the old API. 141 Objects built with the new headers may not be linked against objects 142 built with the old headers. 143 14420160520: 145 The brk and sbrk functions have been removed from libc on arm64. 146 Binutils from ports has been updated to not link to these 147 functions and should be updated to the latest version before 148 installing a new libc. 149 15020160517: 151 The armv6 port now defaults to hard float ABI. Limited support 152 for running both hardfloat and soft float on the same system 153 is available using the libraries installed with -DWITH_LIBSOFT. 154 This has only been tested as an upgrade path for installworld 155 and packages may fail or need manual intervention to run. New 156 packages will be needed. 157 158 To update an existing self-hosted armv6hf system, you must add 159 TARGET_ARCH=armv6 on the make command line for both the build 160 and the install steps. 161 16220160510: 163 Kernel modules compiled outside of a kernel build now default to 164 installing to /boot/modules instead of /boot/kernel. Many kernel 165 modules built this way (such as those in ports) already overrode 166 KMODDIR explicitly to install into /boot/modules. However, 167 manually building and installing a module from /sys/modules will 168 now install to /boot/modules instead of /boot/kernel. 169 17020160414: 171 The CAM I/O scheduler has been committed to the kernel. There should be 172 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 173 list of known rogues that claim support for this but actually corrupt 174 data is believed to be complete, be on the lookout for data 175 corruption. The known rogue list is believed to be complete: 176 177 o Crucial MX100, M550 drives with MU01 firmware. 178 o Micron M510 and M550 drives with MU01 firmware. 179 o Micron M500 prior to MU07 firmware 180 o Samsung 830, 840, and 850 all firmwares 181 o FCCT M500 all firmwares 182 183 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 184 with working NCQ TRIM. For Micron branded drives, see your sales rep for 185 updated firmware. Black listed drives will work correctly because these 186 drives work correctly so long as no NCQ TRIMs are sent to them. Given 187 this list is the same as found in Linux, it's believed there are no 188 other rogues in the market place. All other models from the above 189 vendors work. 190 191 To be safe, if you are at all concerned, you can quirk each of your 192 drives to prevent NCQ from being sent by setting: 193 kern.cam.ada.X.quirks="0x2" 194 in loader.conf. If the drive requires the 4k sector quirk, set the 195 quirks entry to 0x3. 196 19720160330: 198 The FAST_DEPEND build option has been removed and its functionality is 199 now the one true way. The old mkdep(1) style of 'make depend' has 200 been removed. See 20160311 for further details. 201 20220160317: 203 Resource range types have grown from unsigned long to uintmax_t. All 204 drivers, and anything using libdevinfo, need to be recompiled. 205 20620160311: 207 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 208 builds. It no longer runs mkdep(1) during 'make depend', and the 209 'make depend' stage can safely be skipped now as it is auto ran 210 when building 'make all' and will generate all SRCS and DPSRCS before 211 building anything else. Dependencies are gathered at compile time with 212 -MF flags kept in separate .depend files per object file. Users should 213 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 214 stale .depend files. 215 21620160306: 217 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 218 kernel modules. Therefore, if you load any kernel modules at boot time, 219 please install the boot loaders after you install the kernel, but before 220 rebooting, e.g.: 221 222 make buildworld 223 make kernel KERNCONF=YOUR_KERNEL_HERE 224 make -C sys/boot install 225 <reboot in single user> 226 227 Then follow the usual steps, described in the General Notes section, 228 below. 229 23020160305: 231 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 232 see the 20141231 entry below for information about prerequisites and 233 upgrading, if you are not already using clang 3.5.0 or higher. 234 23520160301: 236 The AIO subsystem is now a standard part of the kernel. The 237 VFS_AIO kernel option and aio.ko kernel module have been removed. 238 Due to stability concerns, asynchronous I/O requests are only 239 permitted on sockets and raw disks by default. To enable 240 asynchronous I/O requests on all file types, set the 241 vfs.aio.enable_unsafe sysctl to a non-zero value. 242 24320160226: 244 The ELF object manipulation tool objcopy is now provided by the 245 ELF Tool Chain project rather than by GNU binutils. It should be a 246 drop-in replacement, with the addition of arm64 support. The 247 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 248 to obtain the GNU version if necessary. 249 25020160129: 251 Building ZFS pools on top of zvols is prohibited by default. That 252 feature has never worked safely; it's always been prone to deadlocks. 253 Using a zvol as the backing store for a VM guest's virtual disk will 254 still work, even if the guest is using ZFS. Legacy behavior can be 255 restored by setting vfs.zfs.vol.recursive=1. 256 25720160119: 258 The NONE and HPN patches has been removed from OpenSSH. They are 259 still available in the security/openssh-portable port. 260 26120160113: 262 With the addition of ypldap(8), a new _ypldap user is now required 263 during installworld. "mergemaster -p" can be used to add the user 264 prior to installworld, as documented in the handbook. 265 26620151216: 267 The tftp loader (pxeboot) now uses the option root-path directive. As a 268 consequence it no longer looks for a pxeboot.4th file on the tftp 269 server. Instead it uses the regular /boot infrastructure as with the 270 other loaders. 271 27220151211: 273 The code to start recording plug and play data into the modules has 274 been committed. While the old tools will properly build a new kernel, 275 a number of warnings about "unknown metadata record 4" will be produced 276 for an older kldxref. To avoid such warnings, make sure to rebuild 277 the kernel toolchain (or world). Make sure that you have r292078 or 278 later when trying to build 292077 or later before rebuilding. 279 28020151207: 281 Debug data files are now built by default with 'make buildworld' and 282 installed with 'make installworld'. This facilitates debugging but 283 requires more disk space both during the build and for the installed 284 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 285 in src.conf(5). 286 28720151130: 288 r291527 changed the internal interface between the nfsd.ko and 289 nfscommon.ko modules. As such, they must both be upgraded to-gether. 290 __FreeBSD_version has been bumped because of this. 291 29220151108: 293 Add support for unicode collation strings leads to a change of 294 order of files listed by ls(1) for example. To get back to the old 295 behaviour, set LC_COLLATE environment variable to "C". 296 297 Databases administrators will need to reindex their databases given 298 collation results will be different. 299 300 Due to a bug in install(1) it is recommended to remove the ancient 301 locales before running make installworld. 302 303 rm -rf /usr/share/locale/* 304 30520151030: 306 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 307 libcrypto.so.7 or libssl.so.7 must be recompiled. 308 30920151020: 310 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 311 Kernel modules isp_2400_multi and isp_2500_multi were removed and 312 should be replaced with isp_2400 and isp_2500 modules respectively. 313 31420151017: 315 The build previously allowed using 'make -n' to not recurse into 316 sub-directories while showing what commands would be executed, and 317 'make -n -n' to recursively show commands. Now 'make -n' will recurse 318 and 'make -N' will not. 319 32020151012: 321 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 322 and etcupdate will now use this file. A custom sendmail.cf is now 323 updated via this mechanism rather than via installworld. If you had 324 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 325 want to remove the exclusion or change it to "always install". 326 /etc/mail/sendmail.cf is now managed the same way regardless of 327 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 328 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 329 33020151011: 331 Compatibility shims for legacy ATA device names have been removed. 332 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 333 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 334 environment variables, /dev/ad* and /dev/ar* symbolic links. 335 33620151006: 337 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 338 Please see the 20141231 entry below for information about prerequisites 339 and upgrading, if you are not already using clang 3.5.0 or higher. 340 34120150924: 342 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 343 and renamed from .symbols to .debug. This reduces the size requirements 344 on the boot partition or file system and provides consistency with 345 userland debug files. 346 347 When using the supported kernel installation method the 348 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 349 as is done with /boot/kernel. 350 351 Developers wishing to maintain the historical behavior of installing 352 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 353 35420150827: 355 The wireless drivers had undergone changes that remove the 'parent 356 interface' from the ifconfig -l output. The rc.d network scripts 357 used to check presence of a parent interface in the list, so old 358 scripts would fail to start wireless networking. Thus, etcupdate(3) 359 or mergemaster(8) run is required after kernel update, to update your 360 rc.d scripts in /etc. 361 36220150827: 363 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 364 These configurations are now automatically interpreted as 365 'scrub fragment reassemble'. 366 36720150817: 368 Kernel-loadable modules for the random(4) device are back. To use 369 them, the kernel must have 370 371 device random 372 options RANDOM_LOADABLE 373 374 kldload(8) can then be used to load random_fortuna.ko 375 or random_yarrow.ko. Please note that due to the indirect 376 function calls that the loadable modules need to provide, 377 the build-in variants will be slightly more efficient. 378 379 The random(4) kernel option RANDOM_DUMMY has been retired due to 380 unpopularity. It was not all that useful anyway. 381 38220150813: 383 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 384 Control over building the ELF Tool Chain tools is now provided by 385 the WITHOUT_TOOLCHAIN knob. 386 38720150810: 388 The polarity of Pulse Per Second (PPS) capture events with the 389 uart(4) driver has been corrected. Prior to this change the PPS 390 "assert" event corresponded to the trailing edge of a positive PPS 391 pulse and the "clear" event was the leading edge of the next pulse. 392 393 As the width of a PPS pulse in a typical GPS receiver is on the 394 order of 1 millisecond, most users will not notice any significant 395 difference with this change. 396 397 Anyone who has compensated for the historical polarity reversal by 398 configuring a negative offset equal to the pulse width will need to 399 remove that workaround. 400 40120150809: 402 The default group assigned to /dev/dri entries has been changed 403 from 'wheel' to 'video' with the id of '44'. If you want to have 404 access to the dri devices please add yourself to the video group 405 with: 406 407 # pw groupmod video -m $USER 408 40920150806: 410 The menu.rc and loader.rc files will now be replaced during 411 upgrades. Please migrate local changes to menu.rc.local and 412 loader.rc.local instead. 413 41420150805: 415 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 416 strings and strip have been removed. The src.conf(5) knob 417 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 418 41920150728: 420 As ZFS requires more kernel stack pages than is the default on some 421 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 422 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 423 424 Please consider using 'options KSTACK_PAGES=X' where X is greater 425 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 426 42720150706: 428 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 429 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 430 default, i.e., they will not contain "::". For example, instead 431 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 432 to have a more specific match, such as different map entries for 433 IPv6:0:0 vs IPv6:0. This change requires that configuration 434 data (including maps, files, classes, custom ruleset, etc.) must 435 use the same format, so make certain such configuration data is 436 upgrading. As a very simple check search for patterns like 437 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 438 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 439 the cf option UseCompressedIPv6Addresses. 440 44120150630: 442 The default kernel entropy-processing algorithm is now 443 Fortuna, replacing Yarrow. 444 445 Assuming you have 'device random' in your kernel config 446 file, the configurations allow a kernel option to override 447 this default. You may choose *ONE* of: 448 449 options RANDOM_YARROW # Legacy /dev/random algorithm. 450 options RANDOM_DUMMY # Blocking-only driver. 451 452 If you have neither, you get Fortuna. For most people, 453 read no further, Fortuna will give a /dev/random that works 454 like it always used to, and the difference will be irrelevant. 455 456 If you remove 'device random', you get *NO* kernel-processed 457 entropy at all. This may be acceptable to folks building 458 embedded systems, but has complications. Carry on reading, 459 and it is assumed you know what you need. 460 461 *PLEASE* read random(4) and random(9) if you are in the 462 habit of tweaking kernel configs, and/or if you are a member 463 of the embedded community, wanting specific and not-usual 464 behaviour from your security subsystems. 465 466 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 467 random', you will NOT have a functioning /dev/random, and 468 many cryptographic features will not work, including SSH. 469 You may also find strange behaviour from the random(3) set 470 of library functions, in particular sranddev(3), srandomdev(3) 471 and arc4random(3). The reason for this is that the KERN_ARND 472 sysctl only returns entropy if it thinks it has some to 473 share, and with RANDOM_DUMMY or no 'device random' this 474 will never happen. 475 47620150623: 477 An additional fix for the issue described in the 20150614 sendmail 478 entry below has been been committed in revision 284717. 479 48020150616: 481 FreeBSD's old make (fmake) has been removed from the system. It is 482 available as the devel/fmake port or via pkg install fmake. 483 48420150615: 485 The fix for the issue described in the 20150614 sendmail entry 486 below has been been committed in revision 284436. The work 487 around described in that entry is no longer needed unless the 488 default setting is overridden by a confDH_PARAMETERS configuration 489 setting of '5' or pointing to a 512 bit DH parameter file. 490 49120150614: 492 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 493 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 494 and devel/kyua to version 0.20+ and adjust any calling code to work 495 with Kyuafile and kyua. 496 49720150614: 498 The import of openssl to address the FreeBSD-SA-15:10.openssl 499 security advisory includes a change which rejects handshakes 500 with DH parameters below 768 bits. sendmail releases prior 501 to 8.15.2 (not yet released), defaulted to a 512 bit 502 DH parameter setting for client connections. To work around 503 this interoperability, sendmail can be configured to use a 504 2048 bit DH parameter by: 505 506 1. Edit /etc/mail/`hostname`.mc 507 2. If a setting for confDH_PARAMETERS does not exist or 508 exists and is set to a string beginning with '5', 509 replace it with '2'. 510 3. If a setting for confDH_PARAMETERS exists and is set to 511 a file path, create a new file with: 512 openssl dhparam -out /path/to/file 2048 513 4. Rebuild the .cf file: 514 cd /etc/mail/; make; make install 515 5. Restart sendmail: 516 cd /etc/mail/; make restart 517 518 A sendmail patch is coming, at which time this file will be 519 updated. 520 52120150604: 522 Generation of legacy formatted entries have been disabled by default 523 in pwd_mkdb(8), as all base system consumers of the legacy formatted 524 entries were converted to use the new format by default when the new, 525 machine independent format have been added and supported since FreeBSD 526 5.x. 527 528 Please see the pwd_mkdb(8) manual page for further details. 529 53020150525: 531 Clang and llvm have been upgraded to 3.6.1 release. Please see the 532 20141231 entry below for information about prerequisites and upgrading, 533 if you are not already using 3.5.0 or higher. 534 53520150521: 536 TI platform code switched to using vendor DTS files and this update 537 may break existing systems running on Beaglebone, Beaglebone Black, 538 and Pandaboard: 539 540 - dtb files should be regenerated/reinstalled. Filenames are the 541 same but content is different now 542 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 543 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 544 addressing scheme is now pin 25 on /dev/gpioc3. 545 - Pandaboard: /etc/ttys should be updated, serial console device is 546 now /dev/ttyu2, not /dev/ttyu0 547 54820150501: 549 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 550 If you need the GNU extension from groff soelim(1), install groff 551 from package: pkg install groff, or via ports: textproc/groff. 552 55320150423: 554 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 555 defined in symlink(7); previously symlinks were silently ignored. 556 55720150415: 558 The const qualifier has been removed from iconv(3) to comply with 559 POSIX. The ports tree is aware of this from r384038 onwards. 560 56120150416: 562 Libraries specified by LIBADD in Makefiles must have a corresponding 563 DPADD_<lib> variable to ensure correct dependencies. This is now 564 enforced in src.libnames.mk. 565 56620150324: 567 From legacy ata(4) driver was removed support for SATA controllers 568 supported by more functional drivers ahci(4), siis(4) and mvs(4). 569 Kernel modules ataahci and ataadaptec were removed completely, 570 replaced by ahci and mvs modules respectively. 571 57220150315: 573 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 574 the 20141231 entry below for information about prerequisites and 575 upgrading, if you are not already using 3.5.0 or higher. 576 57720150307: 578 The 32-bit PowerPC kernel has been changed to a position-independent 579 executable. This can only be booted with a version of loader(8) 580 newer than January 31, 2015, so make sure to update both world and 581 kernel before rebooting. 582 58320150217: 584 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 585 but before r278950, the RNG was not seeded properly. Immediately 586 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 587 ssh keys or openssl keys) that were generated w/ a kernel from that 588 range. This does not affect programs that directly used /dev/random 589 or /dev/urandom. All userland uses of arc4random(3) are affected. 590 59120150210: 592 The autofs(4) ABI was changed in order to restore binary compatibility 593 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 594 with the new kernel. 595 59620150131: 597 The powerpc64 kernel has been changed to a position-independent 598 executable. This can only be booted with a new version of loader(8), 599 so make sure to update both world and kernel before rebooting. 600 60120150118: 602 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 603 only release, no new features have been added. Please see the 20141231 604 entry below for information about prerequisites and upgrading, if you 605 are not already using 3.5.0. 606 60720150107: 608 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 609 taken from the ELF Tool Chain project rather than GNU binutils. They 610 should be drop-in replacements, with the addition of arm64 support. 611 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 612 binutils tools, if necessary. See 20150805 for updated information. 613 61420150105: 615 The default Unbound configuration now enables remote control 616 using a local socket. Users who have already enabled the 617 local_unbound service should regenerate their configuration 618 by running "service local_unbound setup" as root. 619 62020150102: 621 The GNU texinfo and GNU info pages have been removed. 622 To be able to view GNU info pages please install texinfo from ports. 623 62420141231: 625 Clang, llvm and lldb have been upgraded to 3.5.0 release. 626 627 As of this release, a prerequisite for building clang, llvm and lldb is 628 a C++11 capable compiler and C++11 standard library. This means that to 629 be able to successfully build the cross-tools stage of buildworld, with 630 clang as the bootstrap compiler, your system compiler or cross compiler 631 should either be clang 3.3 or later, or gcc 4.8 or later, and your 632 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 633 later. 634 635 On any standard FreeBSD 10.x or 11.x installation, where clang and 636 libc++ are on by default (that is, on x86 or arm), this should work out 637 of the box. 638 639 On 9.x installations where clang is enabled by default, e.g. on x86 and 640 powerpc, libc++ will not be enabled by default, so libc++ should be 641 built (with clang) and installed first. If both clang and libc++ are 642 missing, build clang first, then use it to build libc++. 643 644 On 8.x and earlier installations, upgrade to 9.x first, and then follow 645 the instructions for 9.x above. 646 647 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 648 default, and do not build clang. 649 650 Many embedded systems are resource constrained, and will not be able to 651 build clang in a reasonable time, or in some cases at all. In those 652 cases, cross building bootable systems on amd64 is a workaround. 653 654 This new version of clang introduces a number of new warnings, of which 655 the following are most likely to appear: 656 657 -Wabsolute-value 658 659 This warns in two cases, for both C and C++: 660 * When the code is trying to take the absolute value of an unsigned 661 quantity, which is effectively a no-op, and almost never what was 662 intended. The code should be fixed, if at all possible. If you are 663 sure that the unsigned quantity can be safely cast to signed, without 664 loss of information or undefined behavior, you can add an explicit 665 cast, or disable the warning. 666 667 * When the code is trying to take an absolute value, but the called 668 abs() variant is for the wrong type, which can lead to truncation. 669 If you want to disable the warning instead of fixing the code, please 670 make sure that truncation will not occur, or it might lead to unwanted 671 side-effects. 672 673 -Wtautological-undefined-compare and 674 -Wundefined-bool-conversion 675 676 These warn when C++ code is trying to compare 'this' against NULL, while 677 'this' should never be NULL in well-defined C++ code. However, there is 678 some legacy (pre C++11) code out there, which actively abuses this 679 feature, which was less strictly defined in previous C++ versions. 680 681 Squid and openjdk do this, for example. The warning can be turned off 682 for C++98 and earlier, but compiling the code in C++11 mode might result 683 in unexpected behavior; for example, the parts of the program that are 684 unreachable could be optimized away. 685 68620141222: 687 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 688 kernel sources have been removed. The .h files remain, since some 689 utilities include them. This will need to be fixed later. 690 If "mount -t oldnfs ..." is attempted, it will fail. 691 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 692 the utilities will report errors. 693 69420141121: 695 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 696 directories to top level SUBDIR variable when their parent 697 directory is included in LOCAL_DIRS. Users with build systems with 698 such hierarchies and without SUBDIR entries in the parent 699 directory Makefiles should add them or add the directories to 700 LOCAL_DIRS. 701 70220141109: 703 faith(4) and faithd(8) have been removed from the base system. Faith 704 has been obsolete for a very long time. 705 70620141104: 707 vt(4), the new console driver, is enabled by default. It brings 708 support for Unicode and double-width characters, as well as 709 support for UEFI and integration with the KMS kernel video 710 drivers. 711 712 You may need to update your console settings in /etc/rc.conf, 713 most probably the keymap. During boot, /etc/rc.d/syscons will 714 indicate what you need to do. 715 716 vt(4) still has issues and lacks some features compared to 717 syscons(4). See the wiki for up-to-date information: 718 https://wiki.freebsd.org/Newcons 719 720 If you want to keep using syscons(4), you can do so by adding 721 the following line to /boot/loader.conf: 722 kern.vty=sc 723 72420141102: 725 pjdfstest has been integrated into kyua as an opt-in test suite. 726 Please see share/doc/pjdfstest/README for more details on how to 727 execute it. 728 72920141009: 730 gperf has been removed from the base system for architectures 731 that use clang. Ports that require gperf will obtain it from the 732 devel/gperf port. 733 73420140923: 735 pjdfstest has been moved from tools/regression/pjdfstest to 736 contrib/pjdfstest . 737 73820140922: 739 At svn r271982, The default linux compat kernel ABI has been adjusted 740 to 2.6.18 in support of the linux-c6 compat ports infrastructure 741 update. If you wish to continue using the linux-f10 compat ports, 742 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 743 encouraged to update their linux-compat packages to linux-c6 during 744 their next update cycle. 745 74620140729: 747 The ofwfb driver, used to provide a graphics console on PowerPC when 748 using vt(4), no longer allows mmap() of all physical memory. This 749 will prevent Xorg on PowerPC with some ATI graphics cards from 750 initializing properly unless x11-servers/xorg-server is updated to 751 1.12.4_8 or newer. 752 75320140723: 754 The xdev targets have been converted to using TARGET and 755 TARGET_ARCH instead of XDEV and XDEV_ARCH. 756 75720140719: 758 The default unbound configuration has been modified to address 759 issues with reverse lookups on networks that use private 760 address ranges. If you use the local_unbound service, run 761 "service local_unbound setup" as root to regenerate your 762 configuration, then "service local_unbound reload" to load the 763 new configuration. 764 76520140709: 766 The GNU texinfo and GNU info pages are not built and installed 767 anymore, WITH_INFO knob has been added to allow to built and install 768 them again. 769 UPDATE: see 20150102 entry on texinfo's removal 770 77120140708: 772 The GNU readline library is now an INTERNALLIB - that is, it is 773 statically linked into consumers (GDB and variants) in the base 774 system, and the shared library is no longer installed. The 775 devel/readline port is available for third party software that 776 requires readline. 777 77820140702: 779 The Itanium architecture (ia64) has been removed from the list of 780 known architectures. This is the first step in the removal of the 781 architecture. 782 78320140701: 784 Commit r268115 has added NFSv4.1 server support, merged from 785 projects/nfsv4.1-server. Since this includes changes to the 786 internal interfaces between the NFS related modules, a full 787 build of the kernel and modules will be necessary. 788 __FreeBSD_version has been bumped. 789 79020140629: 791 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 792 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 793 which differs from the behaviour controlled by this knob.) 794 79520140619: 796 Maximal length of the serial number in CTL was increased from 16 to 797 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 798 and ctld, need to be rebuilt to work with a new kernel. 799 80020140606: 801 The libatf-c and libatf-c++ major versions were downgraded to 0 and 802 1 respectively to match the upstream numbers. They were out of 803 sync because, when they were originally added to FreeBSD, the 804 upstream versions were not respected. These libraries are private 805 and not yet built by default, so renumbering them should be a 806 non-issue. However, unclean source trees will yield broken test 807 programs once the operator executes "make delete-old-libs" after a 808 "make installworld". 809 810 Additionally, the atf-sh binary was made private by moving it into 811 /usr/libexec/. Already-built shell test programs will keep the 812 path to the old binary so they will break after "make delete-old" 813 is run. 814 815 If you are using WITH_TESTS=yes (not the default), wipe the object 816 tree and rebuild from scratch to prevent spurious test failures. 817 This is only needed once: the misnumbered libraries and misplaced 818 binaries have been added to OptionalObsoleteFiles.inc so they will 819 be removed during a clean upgrade. 820 82120140512: 822 Clang and llvm have been upgraded to 3.4.1 release. 823 82420140508: 825 We bogusly installed src.opts.mk in /usr/share/mk. This file should 826 be removed to avoid issues in the future (and has been added to 827 ObsoleteFiles.inc). 828 82920140505: 830 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 831 past, it affected all builds that used the bsd.*.mk files. The old 832 behavior was a bug, but people may have relied upon it. To get this 833 behavior back, you can .include /etc/src.conf from /etc/make.conf 834 (which is still global and isn't changed). This also changes the 835 behavior of incremental builds inside the tree of individual 836 directories. Set MAKESYSPATH to ".../share/mk" to do that. 837 Although this has survived make universe and some upgrade scenarios, 838 other upgrade scenarios may have broken. At least one form of 839 temporary breakage was fixed with MAKESYSPATH settings for buildworld 840 as well... In cases where MAKESYSPATH isn't working with this 841 setting, you'll need to set it to the full path to your tree. 842 843 One side effect of all this cleaning up is that bsd.compiler.mk 844 is no longer implicitly included by bsd.own.mk. If you wish to 845 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 846 as well. 847 84820140430: 849 The lindev device has been removed since /dev/full has been made a 850 standard device. __FreeBSD_version has been bumped. 851 85220140424: 853 The knob WITHOUT_VI was added to the base system, which controls 854 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 855 in order to reorder files share/termcap and didn't build ex(1) as a 856 build tool, so building/installing with WITH_VI is highly advised for 857 build hosts for older releases. 858 859 This issue has been fixed in stable/9 and stable/10 in r277022 and 860 r276991, respectively. 861 86220140418: 863 The YES_HESIOD knob has been removed. It has been obsolete for 864 a decade. Please move to using WITH_HESIOD instead or your builds 865 will silently lack HESIOD. 866 86720140405: 868 The uart(4) driver has been changed with respect to its handling 869 of the low-level console. Previously the uart(4) driver prevented 870 any process from changing the baudrate or the CLOCAL and HUPCL 871 control flags. By removing the restrictions, operators can make 872 changes to the serial console port without having to reboot. 873 However, when getty(8) is started on the serial device that is 874 associated with the low-level console, a misconfigured terminal 875 line in /etc/ttys will now have a real impact. 876 Before upgrading the kernel, make sure that /etc/ttys has the 877 serial console device configured as 3wire without baudrate to 878 preserve the previous behaviour. E.g: 879 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 880 88120140306: 882 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 883 to improve performance. To re-enable it, if needed, run rpcbind 884 with command line option -W. 885 88620140226: 887 Switched back to the GPL dtc compiler due to updates in the upstream 888 dts files not being supported by the BSDL dtc compiler. You will need 889 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 890 may result while building dtb files during a kernel build if you fail 891 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 892 89320140216: 894 Clang and llvm have been upgraded to 3.4 release. 895 89620140216: 897 The nve(4) driver has been removed. Please use the nfe(4) driver 898 for NVIDIA nForce MCP Ethernet adapters instead. 899 90020140212: 901 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 902 This could cause certain C++ applications using shared libraries built 903 against the previous version of libc++ to crash. The incompatibility 904 has now been fixed, but any C++ applications or shared libraries built 905 between r261283 and r261801 should be recompiled. 906 90720140204: 908 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 909 capability mode support. Please note that enabling the feature in 910 kernel is still highly recommended. 911 91220140131: 913 OpenSSH is now built with sandbox support, and will use sandbox as 914 the default privilege separation method. This requires Capsicum 915 capability mode support in kernel. 916 91720140128: 918 The libelf and libdwarf libraries have been updated to newer 919 versions from upstream. Shared library version numbers for 920 these two libraries were bumped. Any ports or binaries 921 requiring these two libraries should be recompiled. 922 __FreeBSD_version is bumped to 1100006. 923 92420140110: 925 If a Makefile in a tests/ directory was auto-generating a Kyuafile 926 instead of providing an explicit one, this would prevent such 927 Makefile from providing its own Kyuafile in the future during 928 NO_CLEAN builds. This has been fixed in the Makefiles but manual 929 intervention is needed to clean an objdir if you use NO_CLEAN: 930 # find /usr/obj -name Kyuafile | xargs rm -f 931 93220131213: 933 The behavior of gss_pseudo_random() for the krb5 mechanism 934 has changed, for applications requesting a longer random string 935 than produced by the underlying enctype's pseudo-random() function. 936 In particular, the random string produced from a session key of 937 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 938 be different at the 17th octet and later, after this change. 939 The counter used in the PRF+ construction is now encoded as a 940 big-endian integer in accordance with RFC 4402. 941 __FreeBSD_version is bumped to 1100004. 942 94320131108: 944 The WITHOUT_ATF build knob has been removed and its functionality 945 has been subsumed into the more generic WITHOUT_TESTS. If you were 946 using the former to disable the build of the ATF libraries, you 947 should change your settings to use the latter. 948 94920131025: 950 The default version of mtree is nmtree which is obtained from 951 NetBSD. The output is generally the same, but may vary 952 slightly. If you found you need identical output adding 953 "-F freebsd9" to the command line should do the trick. For the 954 time being, the old mtree is available as fmtree. 955 95620131014: 957 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 958 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 959 1.1.4_8 and verify bsdyml not linked in, before running "make 960 delete-old-libs": 961 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 962 or 963 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 964 96520131010: 966 The stable/10 branch has been created in subversion from head 967 revision r256279. 968 96920131010: 970 The rc.d/jail script has been updated to support jail(8) 971 configuration file. The "jail_<jname>_*" rc.conf(5) variables 972 for per-jail configuration are automatically converted to 973 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 974 This is transparently backward compatible. See below about some 975 incompatibilities and rc.conf(5) manual page for more details. 976 977 These variables are now deprecated in favor of jail(8) configuration 978 file. One can use "rc.d/jail config <jname>" command to generate 979 a jail(8) configuration file in /var/run/jail.<jname>.conf without 980 running the jail(8) utility. The default pathname of the 981 configuration file is /etc/jail.conf and can be specified by 982 using $jail_conf or $jail_<jname>_conf variables. 983 984 Please note that jail_devfs_ruleset accepts an integer at 985 this moment. Please consider to rewrite the ruleset name 986 with an integer. 987 98820130930: 989 BIND has been removed from the base system. If all you need 990 is a local resolver, simply enable and start the local_unbound 991 service instead. Otherwise, several versions of BIND are 992 available in the ports tree. The dns/bind99 port is one example. 993 994 With this change, nslookup(1) and dig(1) are no longer in the base 995 system. Users should instead use host(1) and drill(1) which are 996 in the base system. Alternatively, nslookup and dig can 997 be obtained by installing the dns/bind-tools port. 998 99920130916: 1000 With the addition of unbound(8), a new unbound user is now 1001 required during installworld. "mergemaster -p" can be used to 1002 add the user prior to installworld, as documented in the handbook. 1003 100420130911: 1005 OpenSSH is now built with DNSSEC support, and will by default 1006 silently trust signed SSHFP records. This can be controlled with 1007 the VerifyHostKeyDNS client configuration setting. DNSSEC support 1008 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 1009 101020130906: 1011 The GNU Compiler Collection and C++ standard library (libstdc++) 1012 are no longer built by default on platforms where clang is the system 1013 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 1014 options in src.conf. 1015 101620130905: 1017 The PROCDESC kernel option is now part of the GENERIC kernel 1018 configuration and is required for the rwhod(8) to work. 1019 If you are using custom kernel configuration, you should include 1020 'options PROCDESC'. 1021 102220130905: 1023 The API and ABI related to the Capsicum framework was modified 1024 in backward incompatible way. The userland libraries and programs 1025 have to be recompiled to work with the new kernel. This includes the 1026 following libraries and programs, but the whole buildworld is 1027 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1028 kdump, procstat, rwho, rwhod, uniq. 1029 103020130903: 1031 AES-NI intrinsic support has been added to gcc. The AES-NI module 1032 has been updated to use this support. A new gcc is required to build 1033 the aesni module on both i386 and amd64. 1034 103520130821: 1036 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1037 Thus "device padlock_rng" and "device rdrand_rng" should be 1038 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1039 104020130813: 1041 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1042 enables just the iconv* functionality and is now on by default. 1043 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1044 compatibility. Set WITHOUT_ICONV to build the old way. 1045 If you have been using WITH_ICONV before, you will very likely 1046 need to turn on WITH_LIBICONV_COMPAT. 1047 104820130806: 1049 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1050 Illumos origin, including ZFS. If you have INVARIANTS in your 1051 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1052 explicitly. 1053 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1054 locks if WITNESS option was set. Because that generated a lot of 1055 witness(9) reports and all of them were believed to be false 1056 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1057 can be used to achieve the previous behavior. 1058 105920130806: 1060 Timer values in IPv6 data structures now use time_uptime instead 1061 of time_second. Although this is not a user-visible functional 1062 change, userland utilities which directly use them---ndp(8), 1063 rtadvd(8), and rtsold(8) in the base system---need to be updated 1064 to r253970 or later. 1065 106620130802: 1067 find -delete can now delete the pathnames given as arguments, 1068 instead of only files found below them or if the pathname did 1069 not contain any slashes. Formerly, the following error message 1070 would result: 1071 1072 find: -delete: <path>: relative path potentially not safe 1073 1074 Deleting the pathnames given as arguments can be prevented 1075 without error messages using -mindepth 1 or by changing 1076 directory and passing "." as argument to find. This works in the 1077 old as well as the new version of find. 1078 107920130726: 1080 Behavior of devfs rules path matching has been changed. 1081 Pattern is now always matched against fully qualified devfs 1082 path and slash characters must be explicitly matched by 1083 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1084 subdirectories must be reviewed. 1085 108620130716: 1087 The default ARM ABI has changed to the ARM EABI. The old ABI is 1088 incompatible with the ARM EABI and all programs and modules will 1089 need to be rebuilt to work with a new kernel. 1090 1091 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1092 1093 NOTE: Support for the old ABI will be removed in the future and 1094 users are advised to upgrade. 1095 109620130709: 1097 pkg_install has been disconnected from the build if you really need it 1098 you should add WITH_PKGTOOLS in your src.conf(5). 1099 110020130709: 1101 Most of network statistics structures were changed to be able 1102 keep 64-bits counters. Thus all tools, that work with networking 1103 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1104 110520130618: 1106 Fix a bug that allowed a tracing process (e.g. gdb) to write 1107 to a memory-mapped file in the traced process's address space 1108 even if neither the traced process nor the tracing process had 1109 write access to that file. 1110 111120130615: 1112 CVS has been removed from the base system. An exact copy 1113 of the code is available from the devel/cvs port. 1114 111520130613: 1116 Some people report the following error after the switch to bmake: 1117 1118 make: illegal option -- J 1119 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1120 ... 1121 *** [buildworld] Error code 2 1122 1123 this likely due to an old instance of make in 1124 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1125 which src/Makefile will use that blindly, if it exists, so if 1126 you see the above error: 1127 1128 rm -rf `make -V MAKEPATH` 1129 1130 should resolve it. 1131 113220130516: 1133 Use bmake by default. 1134 Whereas before one could choose to build with bmake via 1135 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1136 make. The goal is to remove these knobs for 10-RELEASE. 1137 1138 It is worth noting that bmake (like gmake) treats the command 1139 line as the unit of failure, rather than statements within the 1140 command line. Thus '(cd some/where && dosomething)' is safer 1141 than 'cd some/where; dosomething'. The '()' allows consistent 1142 behavior in parallel build. 1143 114420130429: 1145 Fix a bug that allows NFS clients to issue READDIR on files. 1146 114720130426: 1148 The WITHOUT_IDEA option has been removed because 1149 the IDEA patent expired. 1150 115120130426: 1152 The sysctl which controls TRIM support under ZFS has been renamed 1153 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1154 enabled by default. 1155 115620130425: 1157 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1158 rather than creating it's own in the temporary directory in 1159 order allow access to bootstrapped versions of tools such as 1160 install and mtree. When upgrading from version of FreeBSD where 1161 the install command does not support -l, you will need to 1162 install a new mergemaster command if mergemaster -p is required. 1163 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1164 && make install). 1165 116620130404: 1167 Legacy ATA stack, disabled and replaced by new CAM-based one since 1168 FreeBSD 9.0, completely removed from the sources. Kernel modules 1169 atadisk and atapi*, user-level tools atacontrol and burncd are 1170 removed. Kernel option `options ATA_CAM` is now permanently enabled 1171 and removed. 1172 117320130319: 1174 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1175 and socketpair(2). Software, in particular Kerberos, may 1176 automatically detect and use these during building. The resulting 1177 binaries will not work on older kernels. 1178 117920130308: 1180 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1181 information, see the respective 20130304 entry). 1182 118320130304: 1184 Recent commits to callout(9) changed the size of struct callout, 1185 so the KBI is probably heavily disturbed. Also, some functions 1186 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1187 by macros. Every kernel module using it won't load, so rebuild 1188 is requested. 1189 1190 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1191 but does not initialize by default (because of the new CTL_DISABLE 1192 option) to save memory. To re-enable it, remove the CTL_DISABLE 1193 option from the kernel config file or set kern.cam.ctl.disable=0 1194 in /boot/loader.conf. 1195 119620130301: 1197 The ctl device has been disabled in GENERIC for i386 and amd64. 1198 This was done due to the extra memory being allocated at system 1199 initialisation time by the ctl driver which was only used if 1200 a CAM target device was created. This makes a FreeBSD system 1201 unusable on 128MB or less of RAM. 1202 120320130208: 1204 A new compression method (lz4) has been merged to -HEAD. Please 1205 refer to zpool-features(7) for more information. 1206 1207 Please refer to the "ZFS notes" section of this file for information 1208 on upgrading boot ZFS pools. 1209 121020130129: 1211 A BSD-licensed patch(1) variant has been added and is installed 1212 as bsdpatch, being the GNU version the default patch. 1213 To inverse the logic and use the BSD-licensed one as default, 1214 while having the GNU version installed as gnupatch, rebuild 1215 and install world with the WITH_BSD_PATCH knob set. 1216 121720130121: 1218 Due to the use of the new -l option to install(1) during build 1219 and install, you must take care not to directly set the INSTALL 1220 make variable in your /etc/make.conf, /etc/src.conf, or on the 1221 command line. If you wish to use the -C flag for all installs 1222 you may be able to add INSTALL+=-C to /etc/make.conf or 1223 /etc/src.conf. 1224 122520130118: 1226 The install(1) option -M has changed meaning and now takes an 1227 argument that is a file or path to append logs to. In the 1228 unlikely event that -M was the last option on the command line 1229 and the command line contained at least two files and a target 1230 directory the first file will have logs appended to it. The -M 1231 option served little practical purpose in the last decade so its 1232 use is expected to be extremely rare. 1233 123420121223: 1235 After switching to Clang as the default compiler some users of ZFS 1236 on i386 systems started to experience stack overflow kernel panics. 1237 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1238 123920121222: 1240 GEOM_LABEL now mangles label names read from file system metadata. 1241 Mangling affect labels containing spaces, non-printable characters, 1242 '%' or '"'. Device names in /etc/fstab and other places may need to 1243 be updated. 1244 124520121217: 1246 By default, only the 10 most recent kernel dumps will be saved. To 1247 restore the previous behaviour (no limit on the number of kernel dumps 1248 stored in the dump directory) add the following line to /etc/rc.conf: 1249 1250 savecore_flags="" 1251 125220121201: 1253 With the addition of auditdistd(8), a new auditdistd user is now 1254 required during installworld. "mergemaster -p" can be used to 1255 add the user prior to installworld, as documented in the handbook. 1256 125720121117: 1258 The sin6_scope_id member variable in struct sockaddr_in6 is now 1259 filled by the kernel before passing the structure to the userland via 1260 sysctl or routing socket. This means the KAME-specific embedded scope 1261 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1262 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1263 __FreeBSD_version is bumped to 1000025. 1264 126520121105: 1266 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1267 This means that the world and kernel will be compiled with clang 1268 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1269 and /usr/bin/cpp. To disable this behavior and revert to building 1270 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1271 of current may need to bootstrap WITHOUT_CLANG first if the clang 1272 build fails (its compatibility window doesn't extend to the 9 stable 1273 branch point). 1274 127520121102: 1276 The IPFIREWALL_FORWARD kernel option has been removed. Its 1277 functionality now turned on by default. 1278 127920121023: 1280 The ZERO_COPY_SOCKET kernel option has been removed and 1281 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1282 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1283 mechanism which is not safe and may result in kernel crashes. 1284 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1285 driver supports disposeable external page sized mbuf storage. 1286 Proper replacements for both zero-copy mechanisms are under 1287 consideration and will eventually lead to complete removal 1288 of the two kernel options. 1289 129020121023: 1291 The IPv4 network stack has been converted to network byte 1292 order. The following modules need to be recompiled together 1293 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1294 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1295 129620121022: 1297 Support for non-MPSAFE filesystems was removed from VFS. The 1298 VFS_VERSION was bumped, all filesystem modules shall be 1299 recompiled. 1300 130120121018: 1302 All the non-MPSAFE filesystems have been disconnected from 1303 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1304 portalfs, smbfs, xfs. 1305 130620121016: 1307 The interface cloning API and ABI has changed. The following 1308 modules need to be recompiled together with kernel: 1309 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1310 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1311 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1312 131320121015: 1314 The sdhci driver was split in two parts: sdhci (generic SD Host 1315 Controller logic) and sdhci_pci (actual hardware driver). 1316 No kernel config modifications are required, but if you 1317 load sdhc as a module you must switch to sdhci_pci instead. 1318 131920121014: 1320 Import the FUSE kernel and userland support into base system. 1321 132220121013: 1323 The GNU sort(1) program has been removed since the BSD-licensed 1324 sort(1) has been the default for quite some time and no serious 1325 problems have been reported. The corresponding WITH_GNU_SORT 1326 knob has also gone. 1327 132820121006: 1329 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1330 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1331 with new kernel. 1332 133320121001: 1334 The net80211(4) ABI has been changed to allow for improved driver 1335 PS-POLL and power-save support. All wireless drivers need to be 1336 recompiled to work with the new kernel. 1337 133820120913: 1339 The random(4) support for the VIA hardware random number 1340 generator (`PADLOCK') is no longer enabled unconditionally. 1341 Add the padlock_rng device in the custom kernel config if 1342 needed. The GENERIC kernels on i386 and amd64 do include the 1343 device, so the change only affects the custom kernel 1344 configurations. 1345 134620120908: 1347 The pf(4) packet filter ABI has been changed. pfctl(8) and 1348 snmp_pf module need to be recompiled to work with new kernel. 1349 135020120828: 1351 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1352 to -HEAD. Pools that have empty_bpobj in active state can not be 1353 imported read-write with ZFS implementations that do not support 1354 this feature. For more information read the zpool-features(5) 1355 manual page. 1356 135720120727: 1358 The sparc64 ZFS loader has been changed to no longer try to auto- 1359 detect ZFS providers based on diskN aliases but now requires these 1360 to be explicitly listed in the OFW boot-device environment variable. 1361 136220120712: 1363 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1364 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1365 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1366 136720120712: 1368 The following sysctls and tunables have been renamed for consistency 1369 with other variables: 1370 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1371 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1372 137320120628: 1374 The sort utility has been replaced with BSD sort. For now, GNU sort 1375 is also available as "gnusort" or the default can be set back to 1376 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1377 installed as "bsdsort". 1378 137920120611: 1380 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1381 Starting with this version the old system of ZFS pool versioning 1382 is superseded by "feature flags". This concept enables forward 1383 compatibility against certain future changes in functionality of ZFS 1384 pools. The first read-only compatible "feature flag" for ZFS pools 1385 is named "com.delphix:async_destroy". For more information 1386 read the new zpool-features(5) manual page. 1387 Please refer to the "ZFS notes" section of this file for information 1388 on upgrading boot ZFS pools. 1389 139020120417: 1391 The malloc(3) implementation embedded in libc now uses sources imported 1392 as contrib/jemalloc. The most disruptive API change is to 1393 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1394 delete it prior to installworld, and optionally re-create it using the 1395 new format after rebooting. See malloc.conf(5) for details 1396 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1397 NAMESPACE section). 1398 139920120328: 1400 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1401 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1402 now spelled mips. This is to aid compatibility with third-party 1403 software that expects this naming scheme in uname(3). Little-endian 1404 settings are unchanged. If you are updating a big-endian mips64 machine 1405 from before this change, you may need to set MACHINE_ARCH=mips64 in 1406 your environment before the new build system will recognize your machine. 1407 140820120306: 1409 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1410 platforms. 1411 141220120229: 1413 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1414 nullfs(5) did not pass through all behaviours to the underlying layer, 1415 as a result if we bound to a socket on the lower layer we could connect 1416 only to the lower path; if we bound to the upper layer we could connect 1417 only to the upper path. The new behavior is one can connect to both the 1418 lower and the upper paths regardless what layer path one binds to. 1419 142020120211: 1421 The getifaddrs upgrade path broken with 20111215 has been restored. 1422 If you have upgraded in between 20111215 and 20120209 you need to 1423 recompile libc again with your kernel. You still need to recompile 1424 world to be able to configure CARP but this restriction already 1425 comes from 20111215. 1426 142720120114: 1428 The set_rcvar() function has been removed from /etc/rc.subr. All 1429 base and ports rc.d scripts have been updated, so if you have a 1430 port installed with a script in /usr/local/etc/rc.d you can either 1431 hand-edit the rcvar= line, or reinstall the port. 1432 1433 An easy way to handle the mass-update of /etc/rc.d: 1434 rm /etc/rc.d/* && mergemaster -i 1435 143620120109: 1437 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1438 on the current CPU and prevents other threads from running. 1439 This behavior can be reverted using the kern.stop_scheduler_on_panic 1440 tunable/sysctl. 1441 The new behavior can be incompatible with kern.sync_on_panic. 1442 144320111215: 1444 The carp(4) facility has been changed significantly. Configuration 1445 of the CARP protocol via ifconfig(8) has changed, as well as format 1446 of CARP events submitted to devd(8) has changed. See manual pages 1447 for more information. The arpbalance feature of carp(4) is currently 1448 not supported anymore. 1449 1450 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1451 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1452 need to be recompiled. 1453 145420111122: 1455 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1456 /dev/wmistat0. 1457 145820111108: 1459 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1460 explicitely support non-MPSAFE filesystems. 1461 It is on by default for all supported platform at this present 1462 time. 1463 146420111101: 1465 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1466 i386 and pc98 GENERIC kernel configuration files. 1467 146820110930: 1469 sysinstall has been removed 1470 147120110923: 1472 The stable/9 branch created in subversion. This corresponds to the 1473 RELENG_9 branch in CVS. 1474 1475COMMON ITEMS: 1476 1477 General Notes 1478 ------------- 1479 Avoid using make -j when upgrading. While generally safe, there are 1480 sometimes problems using -j to upgrade. If your upgrade fails with 1481 -j, please try again without -j. From time to time in the past there 1482 have been problems using -j with buildworld and/or installworld. This 1483 is especially true when upgrading between "distant" versions (eg one 1484 that cross a major release boundary or several minor releases, or when 1485 several months have passed on the -current branch). 1486 1487 Sometimes, obscure build problems are the result of environment 1488 poisoning. This can happen because the make utility reads its 1489 environment when searching for values for global variables. To run 1490 your build attempts in an "environmental clean room", prefix all make 1491 commands with 'env -i '. See the env(1) manual page for more details. 1492 1493 When upgrading from one major version to another it is generally best 1494 to upgrade to the latest code in the currently installed branch first, 1495 then do an upgrade to the new branch. This is the best-tested upgrade 1496 path, and has the highest probability of being successful. Please try 1497 this approach before reporting problems with a major version upgrade. 1498 1499 When upgrading a live system, having a root shell around before 1500 installing anything can help undo problems. Not having a root shell 1501 around can lead to problems if pam has changed too much from your 1502 starting point to allow continued authentication after the upgrade. 1503 1504 This file should be read as a log of events. When a later event changes 1505 information of a prior event, the prior event should not be deleted. 1506 Instead, a pointer to the entry with the new information should be 1507 placed in the old entry. Readers of this file should also sanity check 1508 older entries before relying on them blindly. Authors of new entries 1509 should write them with this in mind. 1510 1511 ZFS notes 1512 --------- 1513 When upgrading the boot ZFS pool to a new version, always follow 1514 these two steps: 1515 1516 1.) recompile and reinstall the ZFS boot loader and boot block 1517 (this is part of "make buildworld" and "make installworld") 1518 1519 2.) update the ZFS boot block on your boot drive 1520 1521 The following example updates the ZFS boot block on the first 1522 partition (freebsd-boot) of a GPT partitioned drive ada0: 1523 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1524 1525 Non-boot pools do not need these updates. 1526 1527 To build a kernel 1528 ----------------- 1529 If you are updating from a prior version of FreeBSD (even one just 1530 a few days old), you should follow this procedure. It is the most 1531 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1532 1533 make kernel-toolchain 1534 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1535 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1536 1537 To test a kernel once 1538 --------------------- 1539 If you just want to boot a kernel once (because you are not sure 1540 if it works, or if you want to boot a known bad kernel to provide 1541 debugging information) run 1542 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1543 nextboot -k testkernel 1544 1545 To just build a kernel when you know that it won't mess you up 1546 -------------------------------------------------------------- 1547 This assumes you are already running a CURRENT system. Replace 1548 ${arch} with the architecture of your machine (e.g. "i386", 1549 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1550 1551 cd src/sys/${arch}/conf 1552 config KERNEL_NAME_HERE 1553 cd ../compile/KERNEL_NAME_HERE 1554 make depend 1555 make 1556 make install 1557 1558 If this fails, go to the "To build a kernel" section. 1559 1560 To rebuild everything and install it on the current system. 1561 ----------------------------------------------------------- 1562 # Note: sometimes if you are running current you gotta do more than 1563 # is listed here if you are upgrading from a really old current. 1564 1565 <make sure you have good level 0 dumps> 1566 make buildworld 1567 make kernel KERNCONF=YOUR_KERNEL_HERE 1568 [1] 1569 <reboot in single user> [3] 1570 mergemaster -Fp [5] 1571 make installworld 1572 mergemaster -Fi [4] 1573 make delete-old [6] 1574 <reboot> 1575 1576 To cross-install current onto a separate partition 1577 -------------------------------------------------- 1578 # In this approach we use a separate partition to hold 1579 # current's root, 'usr', and 'var' directories. A partition 1580 # holding "/", "/usr" and "/var" should be about 2GB in 1581 # size. 1582 1583 <make sure you have good level 0 dumps> 1584 <boot into -stable> 1585 make buildworld 1586 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1587 <maybe newfs current's root partition> 1588 <mount current's root partition on directory ${CURRENT_ROOT}> 1589 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1590 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1591 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1592 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1593 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1594 <reboot into current> 1595 <do a "native" rebuild/install as described in the previous section> 1596 <maybe install compatibility libraries from ports/misc/compat*> 1597 <reboot> 1598 1599 1600 To upgrade in-place from stable to current 1601 ---------------------------------------------- 1602 <make sure you have good level 0 dumps> 1603 make buildworld [9] 1604 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1605 [1] 1606 <reboot in single user> [3] 1607 mergemaster -Fp [5] 1608 make installworld 1609 mergemaster -Fi [4] 1610 make delete-old [6] 1611 <reboot> 1612 1613 Make sure that you've read the UPDATING file to understand the 1614 tweaks to various things you need. At this point in the life 1615 cycle of current, things change often and you are on your own 1616 to cope. The defaults can also change, so please read ALL of 1617 the UPDATING entries. 1618 1619 Also, if you are tracking -current, you must be subscribed to 1620 freebsd-current@freebsd.org. Make sure that before you update 1621 your sources that you have read and understood all the recent 1622 messages there. If in doubt, please track -stable which has 1623 much fewer pitfalls. 1624 1625 [1] If you have third party modules, such as vmware, you 1626 should disable them at this point so they don't crash your 1627 system on reboot. 1628 1629 [3] From the bootblocks, boot -s, and then do 1630 fsck -p 1631 mount -u / 1632 mount -a 1633 cd src 1634 adjkerntz -i # if CMOS is wall time 1635 Also, when doing a major release upgrade, it is required that 1636 you boot into single user mode to do the installworld. 1637 1638 [4] Note: This step is non-optional. Failure to do this step 1639 can result in a significant reduction in the functionality of the 1640 system. Attempting to do it by hand is not recommended and those 1641 that pursue this avenue should read this file carefully, as well 1642 as the archives of freebsd-current and freebsd-hackers mailing lists 1643 for potential gotchas. The -U option is also useful to consider. 1644 See mergemaster(8) for more information. 1645 1646 [5] Usually this step is a noop. However, from time to time 1647 you may need to do this if you get unknown user in the following 1648 step. It never hurts to do it all the time. You may need to 1649 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1650 install) after the buildworld before this step if you last updated 1651 from current before 20130425 or from -stable before 20130430. 1652 1653 [6] This only deletes old files and directories. Old libraries 1654 can be deleted by "make delete-old-libs", but you have to make 1655 sure that no program is using those libraries anymore. 1656 1657 [8] In order to have a kernel that can run the 4.x binaries needed to 1658 do an installworld, you must include the COMPAT_FREEBSD4 option in 1659 your kernel. Failure to do so may leave you with a system that is 1660 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1661 required to run the 5.x binaries on more recent kernels. And so on 1662 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1663 1664 Make sure that you merge any new devices from GENERIC since the 1665 last time you updated your kernel config file. 1666 1667 [9] When checking out sources, you must include the -P flag to have 1668 cvs prune empty directories. 1669 1670 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1671 "?=" instead of the "=" assignment operator, so that buildworld can 1672 override the CPUTYPE if it needs to. 1673 1674 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1675 not on the command line, or in /etc/make.conf. buildworld will 1676 warn if it is improperly defined. 1677FORMAT: 1678 1679This file contains a list, in reverse chronological order, of major 1680breakages in tracking -current. It is not guaranteed to be a complete 1681list of such breakages, and only contains entries since September 23, 2011. 1682If you need to see UPDATING entries from before that date, you will need 1683to fetch an UPDATING file from an older FreeBSD release. 1684 1685Copyright information: 1686 1687Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1688 1689Redistribution, publication, translation and use, with or without 1690modification, in full or in part, in any form or format of this 1691document are permitted without further permission from the author. 1692 1693THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1694IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1695WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1696DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1697INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1698(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1699SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1700HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1701STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1702IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1703POSSIBILITY OF SUCH DAMAGE. 1704 1705Contact Warner Losh if you have any questions about your use of 1706this document. 1707 1708$FreeBSD: stable/11/UPDATING 322807 2017-08-23 04:43:50Z mckusick $ 1709