UPDATING revision 318864
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 1920170518: 20 arm64 builds now use the base system LLD 4.0.0 linker by default, 21 instead of requiring that the aarch64-binutils port or package be 22 installed. To continue using aarch64-binutils, set 23 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin . 24 2520170511: 26 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 27 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 28 same source (previously, the dependency of mmcsd.ko on mmc.ko was 29 missing, but mmcsd.ko now will refuse to load if it is incompatible 30 with mmc.ko). 31 3220170414: 33 Binds and sends to the loopback addresses, IPv6 and IPv4, will now 34 use any explicitly assigned loopback address available in the jail 35 instead of using the first assigned address of the jail. 36 3720170413: 38 As of r316810 for ipfilter, keep frags is no longer assumed when 39 keep state is specified in a rule. r316810 aligns ipfilter with 40 documentation in man pages separating keep frags from keep state. 41 This allows keep state to specified without forcing keep frags 42 and allows keep frags to be specified independently of keep state. 43 To maintain previous behaviour, also specify keep frags with 44 keep state (as documented in ipf.conf.5). 45 4620170402: 47 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0. 48 Please see the 20141231 entry below for information about prerequisites 49 and upgrading, if you are not already using clang 3.5.0 or higher. 50 5120170323: 52 The code that provides support for ZFS .zfs/ directory functionality 53 has been reimplemented. It's not possible now to create a snapshot 54 by mkdir under .zfs/snapshot/. That should be the only user visible 55 change. 56 5720170319: 58 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT 59 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of 60 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed, 61 and now NAT-T is supported by default. Security associations now use 62 the single namespace for SPI allocation, so if you use several manually 63 configured security associations with the same SPI, this configuration 64 needs modification. 65 6620161217: 67 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 68 Please see the 20141231 entry below for information about prerequisites 69 and upgrading, if you are not already using clang 3.5.0 or higher. 70 7120161124: 72 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 73 Please see the 20141231 entry below for information about prerequisites 74 and upgrading, if you are not already using clang 3.5.0 or higher. 75 7620161119: 77 The layout of the pmap structure has changed for powerpc to put the pmap 78 statistics at the front for all CPU variations. libkvm(3) and all tools 79 that link against it need to be recompiled. 80 8120161030: 82 isl(4) and cyapa(4) drivers now require a new driver, 83 chromebook_platform(4), to work properly on Chromebook-class hardware. 84 On other types of hardware the drivers may need to be configured using 85 device hints. Please see the corresponding manual pages for details. 86 8720161210: 88 Relocatable object files with the extension of .So have been renamed 89 to use an extension of .pico instead. The purpose of this change is 90 to avoid a name clash with shared libraries on case-insensitive file 91 systems. On those file systems, foo.So is the same file as foo.so. 92 9320160622: 94 The libc stub for the pipe(2) system call has been replaced with 95 a wrapper that calls the pipe2(2) system call and the pipe(2) 96 system call is now only implemented by the kernels that include 97 "options COMPAT_FREEBSD10" in their config file (this is the 98 default). Users should ensure that this option is enabled in 99 their kernel or upgrade userspace to r302092 before upgrading their 100 kernel. 101 10220160527: 103 CAM will now strip leading spaces from SCSI disks' serial numbers. 104 This will effect users who create UFS filesystems on SCSI disks using 105 those disk's diskid device nodes. For example, if /etc/fstab 106 previously contained a line like 107 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 108 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 109 transforms like gmirror may also be affected. ZFS users should 110 generally be fine. 111 11220160523: 113 The bitstring(3) API has been updated with new functionality and 114 improved performance. But it is binary-incompatible with the old API. 115 Objects built with the new headers may not be linked against objects 116 built with the old headers. 117 11820160520: 119 The brk and sbrk functions have been removed from libc on arm64. 120 Binutils from ports has been updated to not link to these 121 functions and should be updated to the latest version before 122 installing a new libc. 123 12420160517: 125 The armv6 port now defaults to hard float ABI. Limited support 126 for running both hardfloat and soft float on the same system 127 is available using the libraries installed with -DWITH_LIBSOFT. 128 This has only been tested as an upgrade path for installworld 129 and packages may fail or need manual intervention to run. New 130 packages will be needed. 131 132 To update an existing self-hosted armv6hf system, you must add 133 TARGET_ARCH=armv6 on the make command line for both the build 134 and the install steps. 135 13620160510: 137 Kernel modules compiled outside of a kernel build now default to 138 installing to /boot/modules instead of /boot/kernel. Many kernel 139 modules built this way (such as those in ports) already overrode 140 KMODDIR explicitly to install into /boot/modules. However, 141 manually building and installing a module from /sys/modules will 142 now install to /boot/modules instead of /boot/kernel. 143 14420160414: 145 The CAM I/O scheduler has been committed to the kernel. There should be 146 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 147 list of known rogues that claim support for this but actually corrupt 148 data is believed to be complete, be on the lookout for data 149 corruption. The known rogue list is believed to be complete: 150 151 o Crucial MX100, M550 drives with MU01 firmware. 152 o Micron M510 and M550 drives with MU01 firmware. 153 o Micron M500 prior to MU07 firmware 154 o Samsung 830, 840, and 850 all firmwares 155 o FCCT M500 all firmwares 156 157 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 158 with working NCQ TRIM. For Micron branded drives, see your sales rep for 159 updated firmware. Black listed drives will work correctly because these 160 drives work correctly so long as no NCQ TRIMs are sent to them. Given 161 this list is the same as found in Linux, it's believed there are no 162 other rogues in the market place. All other models from the above 163 vendors work. 164 165 To be safe, if you are at all concerned, you can quirk each of your 166 drives to prevent NCQ from being sent by setting: 167 kern.cam.ada.X.quirks="0x2" 168 in loader.conf. If the drive requires the 4k sector quirk, set the 169 quirks entry to 0x3. 170 17120160330: 172 The FAST_DEPEND build option has been removed and its functionality is 173 now the one true way. The old mkdep(1) style of 'make depend' has 174 been removed. See 20160311 for further details. 175 17620160317: 177 Resource range types have grown from unsigned long to uintmax_t. All 178 drivers, and anything using libdevinfo, need to be recompiled. 179 18020160311: 181 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 182 builds. It no longer runs mkdep(1) during 'make depend', and the 183 'make depend' stage can safely be skipped now as it is auto ran 184 when building 'make all' and will generate all SRCS and DPSRCS before 185 building anything else. Dependencies are gathered at compile time with 186 -MF flags kept in separate .depend files per object file. Users should 187 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 188 stale .depend files. 189 19020160306: 191 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 192 kernel modules. Therefore, if you load any kernel modules at boot time, 193 please install the boot loaders after you install the kernel, but before 194 rebooting, e.g.: 195 196 make buildworld 197 make kernel KERNCONF=YOUR_KERNEL_HERE 198 make -C sys/boot install 199 <reboot in single user> 200 201 Then follow the usual steps, described in the General Notes section, 202 below. 203 20420160305: 205 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 206 see the 20141231 entry below for information about prerequisites and 207 upgrading, if you are not already using clang 3.5.0 or higher. 208 20920160301: 210 The AIO subsystem is now a standard part of the kernel. The 211 VFS_AIO kernel option and aio.ko kernel module have been removed. 212 Due to stability concerns, asynchronous I/O requests are only 213 permitted on sockets and raw disks by default. To enable 214 asynchronous I/O requests on all file types, set the 215 vfs.aio.enable_unsafe sysctl to a non-zero value. 216 21720160226: 218 The ELF object manipulation tool objcopy is now provided by the 219 ELF Tool Chain project rather than by GNU binutils. It should be a 220 drop-in replacement, with the addition of arm64 support. The 221 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 222 to obtain the GNU version if necessary. 223 22420160129: 225 Building ZFS pools on top of zvols is prohibited by default. That 226 feature has never worked safely; it's always been prone to deadlocks. 227 Using a zvol as the backing store for a VM guest's virtual disk will 228 still work, even if the guest is using ZFS. Legacy behavior can be 229 restored by setting vfs.zfs.vol.recursive=1. 230 23120160119: 232 The NONE and HPN patches has been removed from OpenSSH. They are 233 still available in the security/openssh-portable port. 234 23520160113: 236 With the addition of ypldap(8), a new _ypldap user is now required 237 during installworld. "mergemaster -p" can be used to add the user 238 prior to installworld, as documented in the handbook. 239 24020151216: 241 The tftp loader (pxeboot) now uses the option root-path directive. As a 242 consequence it no longer looks for a pxeboot.4th file on the tftp 243 server. Instead it uses the regular /boot infrastructure as with the 244 other loaders. 245 24620151211: 247 The code to start recording plug and play data into the modules has 248 been committed. While the old tools will properly build a new kernel, 249 a number of warnings about "unknown metadata record 4" will be produced 250 for an older kldxref. To avoid such warnings, make sure to rebuild 251 the kernel toolchain (or world). Make sure that you have r292078 or 252 later when trying to build 292077 or later before rebuilding. 253 25420151207: 255 Debug data files are now built by default with 'make buildworld' and 256 installed with 'make installworld'. This facilitates debugging but 257 requires more disk space both during the build and for the installed 258 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 259 in src.conf(5). 260 26120151130: 262 r291527 changed the internal interface between the nfsd.ko and 263 nfscommon.ko modules. As such, they must both be upgraded to-gether. 264 __FreeBSD_version has been bumped because of this. 265 26620151108: 267 Add support for unicode collation strings leads to a change of 268 order of files listed by ls(1) for example. To get back to the old 269 behaviour, set LC_COLLATE environment variable to "C". 270 271 Databases administrators will need to reindex their databases given 272 collation results will be different. 273 274 Due to a bug in install(1) it is recommended to remove the ancient 275 locales before running make installworld. 276 277 rm -rf /usr/share/locale/* 278 27920151030: 280 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 281 libcrypto.so.7 or libssl.so.7 must be recompiled. 282 28320151020: 284 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 285 Kernel modules isp_2400_multi and isp_2500_multi were removed and 286 should be replaced with isp_2400 and isp_2500 modules respectively. 287 28820151017: 289 The build previously allowed using 'make -n' to not recurse into 290 sub-directories while showing what commands would be executed, and 291 'make -n -n' to recursively show commands. Now 'make -n' will recurse 292 and 'make -N' will not. 293 29420151012: 295 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 296 and etcupdate will now use this file. A custom sendmail.cf is now 297 updated via this mechanism rather than via installworld. If you had 298 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 299 want to remove the exclusion or change it to "always install". 300 /etc/mail/sendmail.cf is now managed the same way regardless of 301 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 302 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 303 30420151011: 305 Compatibility shims for legacy ATA device names have been removed. 306 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 307 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 308 environment variables, /dev/ad* and /dev/ar* symbolic links. 309 31020151006: 311 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 312 Please see the 20141231 entry below for information about prerequisites 313 and upgrading, if you are not already using clang 3.5.0 or higher. 314 31520150924: 316 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 317 and renamed from .symbols to .debug. This reduces the size requirements 318 on the boot partition or file system and provides consistency with 319 userland debug files. 320 321 When using the supported kernel installation method the 322 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 323 as is done with /boot/kernel. 324 325 Developers wishing to maintain the historical behavior of installing 326 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 327 32820150827: 329 The wireless drivers had undergone changes that remove the 'parent 330 interface' from the ifconfig -l output. The rc.d network scripts 331 used to check presence of a parent interface in the list, so old 332 scripts would fail to start wireless networking. Thus, etcupdate(3) 333 or mergemaster(8) run is required after kernel update, to update your 334 rc.d scripts in /etc. 335 33620150827: 337 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 338 These configurations are now automatically interpreted as 339 'scrub fragment reassemble'. 340 34120150817: 342 Kernel-loadable modules for the random(4) device are back. To use 343 them, the kernel must have 344 345 device random 346 options RANDOM_LOADABLE 347 348 kldload(8) can then be used to load random_fortuna.ko 349 or random_yarrow.ko. Please note that due to the indirect 350 function calls that the loadable modules need to provide, 351 the build-in variants will be slightly more efficient. 352 353 The random(4) kernel option RANDOM_DUMMY has been retired due to 354 unpopularity. It was not all that useful anyway. 355 35620150813: 357 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 358 Control over building the ELF Tool Chain tools is now provided by 359 the WITHOUT_TOOLCHAIN knob. 360 36120150810: 362 The polarity of Pulse Per Second (PPS) capture events with the 363 uart(4) driver has been corrected. Prior to this change the PPS 364 "assert" event corresponded to the trailing edge of a positive PPS 365 pulse and the "clear" event was the leading edge of the next pulse. 366 367 As the width of a PPS pulse in a typical GPS receiver is on the 368 order of 1 millisecond, most users will not notice any significant 369 difference with this change. 370 371 Anyone who has compensated for the historical polarity reversal by 372 configuring a negative offset equal to the pulse width will need to 373 remove that workaround. 374 37520150809: 376 The default group assigned to /dev/dri entries has been changed 377 from 'wheel' to 'video' with the id of '44'. If you want to have 378 access to the dri devices please add yourself to the video group 379 with: 380 381 # pw groupmod video -m $USER 382 38320150806: 384 The menu.rc and loader.rc files will now be replaced during 385 upgrades. Please migrate local changes to menu.rc.local and 386 loader.rc.local instead. 387 38820150805: 389 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 390 strings and strip have been removed. The src.conf(5) knob 391 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 392 39320150728: 394 As ZFS requires more kernel stack pages than is the default on some 395 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 396 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 397 398 Please consider using 'options KSTACK_PAGES=X' where X is greater 399 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 400 40120150706: 402 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 403 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 404 default, i.e., they will not contain "::". For example, instead 405 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 406 to have a more specific match, such as different map entries for 407 IPv6:0:0 vs IPv6:0. This change requires that configuration 408 data (including maps, files, classes, custom ruleset, etc.) must 409 use the same format, so make certain such configuration data is 410 upgrading. As a very simple check search for patterns like 411 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 412 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 413 the cf option UseCompressedIPv6Addresses. 414 41520150630: 416 The default kernel entropy-processing algorithm is now 417 Fortuna, replacing Yarrow. 418 419 Assuming you have 'device random' in your kernel config 420 file, the configurations allow a kernel option to override 421 this default. You may choose *ONE* of: 422 423 options RANDOM_YARROW # Legacy /dev/random algorithm. 424 options RANDOM_DUMMY # Blocking-only driver. 425 426 If you have neither, you get Fortuna. For most people, 427 read no further, Fortuna will give a /dev/random that works 428 like it always used to, and the difference will be irrelevant. 429 430 If you remove 'device random', you get *NO* kernel-processed 431 entropy at all. This may be acceptable to folks building 432 embedded systems, but has complications. Carry on reading, 433 and it is assumed you know what you need. 434 435 *PLEASE* read random(4) and random(9) if you are in the 436 habit of tweaking kernel configs, and/or if you are a member 437 of the embedded community, wanting specific and not-usual 438 behaviour from your security subsystems. 439 440 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 441 random', you will NOT have a functioning /dev/random, and 442 many cryptographic features will not work, including SSH. 443 You may also find strange behaviour from the random(3) set 444 of library functions, in particular sranddev(3), srandomdev(3) 445 and arc4random(3). The reason for this is that the KERN_ARND 446 sysctl only returns entropy if it thinks it has some to 447 share, and with RANDOM_DUMMY or no 'device random' this 448 will never happen. 449 45020150623: 451 An additional fix for the issue described in the 20150614 sendmail 452 entry below has been been committed in revision 284717. 453 45420150616: 455 FreeBSD's old make (fmake) has been removed from the system. It is 456 available as the devel/fmake port or via pkg install fmake. 457 45820150615: 459 The fix for the issue described in the 20150614 sendmail entry 460 below has been been committed in revision 284436. The work 461 around described in that entry is no longer needed unless the 462 default setting is overridden by a confDH_PARAMETERS configuration 463 setting of '5' or pointing to a 512 bit DH parameter file. 464 46520150614: 466 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 467 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 468 and devel/kyua to version 0.20+ and adjust any calling code to work 469 with Kyuafile and kyua. 470 47120150614: 472 The import of openssl to address the FreeBSD-SA-15:10.openssl 473 security advisory includes a change which rejects handshakes 474 with DH parameters below 768 bits. sendmail releases prior 475 to 8.15.2 (not yet released), defaulted to a 512 bit 476 DH parameter setting for client connections. To work around 477 this interoperability, sendmail can be configured to use a 478 2048 bit DH parameter by: 479 480 1. Edit /etc/mail/`hostname`.mc 481 2. If a setting for confDH_PARAMETERS does not exist or 482 exists and is set to a string beginning with '5', 483 replace it with '2'. 484 3. If a setting for confDH_PARAMETERS exists and is set to 485 a file path, create a new file with: 486 openssl dhparam -out /path/to/file 2048 487 4. Rebuild the .cf file: 488 cd /etc/mail/; make; make install 489 5. Restart sendmail: 490 cd /etc/mail/; make restart 491 492 A sendmail patch is coming, at which time this file will be 493 updated. 494 49520150604: 496 Generation of legacy formatted entries have been disabled by default 497 in pwd_mkdb(8), as all base system consumers of the legacy formatted 498 entries were converted to use the new format by default when the new, 499 machine independent format have been added and supported since FreeBSD 500 5.x. 501 502 Please see the pwd_mkdb(8) manual page for further details. 503 50420150525: 505 Clang and llvm have been upgraded to 3.6.1 release. Please see the 506 20141231 entry below for information about prerequisites and upgrading, 507 if you are not already using 3.5.0 or higher. 508 50920150521: 510 TI platform code switched to using vendor DTS files and this update 511 may break existing systems running on Beaglebone, Beaglebone Black, 512 and Pandaboard: 513 514 - dtb files should be regenerated/reinstalled. Filenames are the 515 same but content is different now 516 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 517 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 518 addressing scheme is now pin 25 on /dev/gpioc3. 519 - Pandaboard: /etc/ttys should be updated, serial console device is 520 now /dev/ttyu2, not /dev/ttyu0 521 52220150501: 523 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 524 If you need the GNU extension from groff soelim(1), install groff 525 from package: pkg install groff, or via ports: textproc/groff. 526 52720150423: 528 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 529 defined in symlink(7); previously symlinks were silently ignored. 530 53120150415: 532 The const qualifier has been removed from iconv(3) to comply with 533 POSIX. The ports tree is aware of this from r384038 onwards. 534 53520150416: 536 Libraries specified by LIBADD in Makefiles must have a corresponding 537 DPADD_<lib> variable to ensure correct dependencies. This is now 538 enforced in src.libnames.mk. 539 54020150324: 541 From legacy ata(4) driver was removed support for SATA controllers 542 supported by more functional drivers ahci(4), siis(4) and mvs(4). 543 Kernel modules ataahci and ataadaptec were removed completely, 544 replaced by ahci and mvs modules respectively. 545 54620150315: 547 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 548 the 20141231 entry below for information about prerequisites and 549 upgrading, if you are not already using 3.5.0 or higher. 550 55120150307: 552 The 32-bit PowerPC kernel has been changed to a position-independent 553 executable. This can only be booted with a version of loader(8) 554 newer than January 31, 2015, so make sure to update both world and 555 kernel before rebooting. 556 55720150217: 558 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 559 but before r278950, the RNG was not seeded properly. Immediately 560 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 561 ssh keys or openssl keys) that were generated w/ a kernel from that 562 range. This does not affect programs that directly used /dev/random 563 or /dev/urandom. All userland uses of arc4random(3) are affected. 564 56520150210: 566 The autofs(4) ABI was changed in order to restore binary compatibility 567 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 568 with the new kernel. 569 57020150131: 571 The powerpc64 kernel has been changed to a position-independent 572 executable. This can only be booted with a new version of loader(8), 573 so make sure to update both world and kernel before rebooting. 574 57520150118: 576 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 577 only release, no new features have been added. Please see the 20141231 578 entry below for information about prerequisites and upgrading, if you 579 are not already using 3.5.0. 580 58120150107: 582 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 583 taken from the ELF Tool Chain project rather than GNU binutils. They 584 should be drop-in replacements, with the addition of arm64 support. 585 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 586 binutils tools, if necessary. See 20150805 for updated information. 587 58820150105: 589 The default Unbound configuration now enables remote control 590 using a local socket. Users who have already enabled the 591 local_unbound service should regenerate their configuration 592 by running "service local_unbound setup" as root. 593 59420150102: 595 The GNU texinfo and GNU info pages have been removed. 596 To be able to view GNU info pages please install texinfo from ports. 597 59820141231: 599 Clang, llvm and lldb have been upgraded to 3.5.0 release. 600 601 As of this release, a prerequisite for building clang, llvm and lldb is 602 a C++11 capable compiler and C++11 standard library. This means that to 603 be able to successfully build the cross-tools stage of buildworld, with 604 clang as the bootstrap compiler, your system compiler or cross compiler 605 should either be clang 3.3 or later, or gcc 4.8 or later, and your 606 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 607 later. 608 609 On any standard FreeBSD 10.x or 11.x installation, where clang and 610 libc++ are on by default (that is, on x86 or arm), this should work out 611 of the box. 612 613 On 9.x installations where clang is enabled by default, e.g. on x86 and 614 powerpc, libc++ will not be enabled by default, so libc++ should be 615 built (with clang) and installed first. If both clang and libc++ are 616 missing, build clang first, then use it to build libc++. 617 618 On 8.x and earlier installations, upgrade to 9.x first, and then follow 619 the instructions for 9.x above. 620 621 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 622 default, and do not build clang. 623 624 Many embedded systems are resource constrained, and will not be able to 625 build clang in a reasonable time, or in some cases at all. In those 626 cases, cross building bootable systems on amd64 is a workaround. 627 628 This new version of clang introduces a number of new warnings, of which 629 the following are most likely to appear: 630 631 -Wabsolute-value 632 633 This warns in two cases, for both C and C++: 634 * When the code is trying to take the absolute value of an unsigned 635 quantity, which is effectively a no-op, and almost never what was 636 intended. The code should be fixed, if at all possible. If you are 637 sure that the unsigned quantity can be safely cast to signed, without 638 loss of information or undefined behavior, you can add an explicit 639 cast, or disable the warning. 640 641 * When the code is trying to take an absolute value, but the called 642 abs() variant is for the wrong type, which can lead to truncation. 643 If you want to disable the warning instead of fixing the code, please 644 make sure that truncation will not occur, or it might lead to unwanted 645 side-effects. 646 647 -Wtautological-undefined-compare and 648 -Wundefined-bool-conversion 649 650 These warn when C++ code is trying to compare 'this' against NULL, while 651 'this' should never be NULL in well-defined C++ code. However, there is 652 some legacy (pre C++11) code out there, which actively abuses this 653 feature, which was less strictly defined in previous C++ versions. 654 655 Squid and openjdk do this, for example. The warning can be turned off 656 for C++98 and earlier, but compiling the code in C++11 mode might result 657 in unexpected behavior; for example, the parts of the program that are 658 unreachable could be optimized away. 659 66020141222: 661 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 662 kernel sources have been removed. The .h files remain, since some 663 utilities include them. This will need to be fixed later. 664 If "mount -t oldnfs ..." is attempted, it will fail. 665 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 666 the utilities will report errors. 667 66820141121: 669 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 670 directories to top level SUBDIR variable when their parent 671 directory is included in LOCAL_DIRS. Users with build systems with 672 such hierarchies and without SUBDIR entries in the parent 673 directory Makefiles should add them or add the directories to 674 LOCAL_DIRS. 675 67620141109: 677 faith(4) and faithd(8) have been removed from the base system. Faith 678 has been obsolete for a very long time. 679 68020141104: 681 vt(4), the new console driver, is enabled by default. It brings 682 support for Unicode and double-width characters, as well as 683 support for UEFI and integration with the KMS kernel video 684 drivers. 685 686 You may need to update your console settings in /etc/rc.conf, 687 most probably the keymap. During boot, /etc/rc.d/syscons will 688 indicate what you need to do. 689 690 vt(4) still has issues and lacks some features compared to 691 syscons(4). See the wiki for up-to-date information: 692 https://wiki.freebsd.org/Newcons 693 694 If you want to keep using syscons(4), you can do so by adding 695 the following line to /boot/loader.conf: 696 kern.vty=sc 697 69820141102: 699 pjdfstest has been integrated into kyua as an opt-in test suite. 700 Please see share/doc/pjdfstest/README for more details on how to 701 execute it. 702 70320141009: 704 gperf has been removed from the base system for architectures 705 that use clang. Ports that require gperf will obtain it from the 706 devel/gperf port. 707 70820140923: 709 pjdfstest has been moved from tools/regression/pjdfstest to 710 contrib/pjdfstest . 711 71220140922: 713 At svn r271982, The default linux compat kernel ABI has been adjusted 714 to 2.6.18 in support of the linux-c6 compat ports infrastructure 715 update. If you wish to continue using the linux-f10 compat ports, 716 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 717 encouraged to update their linux-compat packages to linux-c6 during 718 their next update cycle. 719 72020140729: 721 The ofwfb driver, used to provide a graphics console on PowerPC when 722 using vt(4), no longer allows mmap() of all physical memory. This 723 will prevent Xorg on PowerPC with some ATI graphics cards from 724 initializing properly unless x11-servers/xorg-server is updated to 725 1.12.4_8 or newer. 726 72720140723: 728 The xdev targets have been converted to using TARGET and 729 TARGET_ARCH instead of XDEV and XDEV_ARCH. 730 73120140719: 732 The default unbound configuration has been modified to address 733 issues with reverse lookups on networks that use private 734 address ranges. If you use the local_unbound service, run 735 "service local_unbound setup" as root to regenerate your 736 configuration, then "service local_unbound reload" to load the 737 new configuration. 738 73920140709: 740 The GNU texinfo and GNU info pages are not built and installed 741 anymore, WITH_INFO knob has been added to allow to built and install 742 them again. 743 UPDATE: see 20150102 entry on texinfo's removal 744 74520140708: 746 The GNU readline library is now an INTERNALLIB - that is, it is 747 statically linked into consumers (GDB and variants) in the base 748 system, and the shared library is no longer installed. The 749 devel/readline port is available for third party software that 750 requires readline. 751 75220140702: 753 The Itanium architecture (ia64) has been removed from the list of 754 known architectures. This is the first step in the removal of the 755 architecture. 756 75720140701: 758 Commit r268115 has added NFSv4.1 server support, merged from 759 projects/nfsv4.1-server. Since this includes changes to the 760 internal interfaces between the NFS related modules, a full 761 build of the kernel and modules will be necessary. 762 __FreeBSD_version has been bumped. 763 76420140629: 765 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 766 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 767 which differs from the behaviour controlled by this knob.) 768 76920140619: 770 Maximal length of the serial number in CTL was increased from 16 to 771 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 772 and ctld, need to be rebuilt to work with a new kernel. 773 77420140606: 775 The libatf-c and libatf-c++ major versions were downgraded to 0 and 776 1 respectively to match the upstream numbers. They were out of 777 sync because, when they were originally added to FreeBSD, the 778 upstream versions were not respected. These libraries are private 779 and not yet built by default, so renumbering them should be a 780 non-issue. However, unclean source trees will yield broken test 781 programs once the operator executes "make delete-old-libs" after a 782 "make installworld". 783 784 Additionally, the atf-sh binary was made private by moving it into 785 /usr/libexec/. Already-built shell test programs will keep the 786 path to the old binary so they will break after "make delete-old" 787 is run. 788 789 If you are using WITH_TESTS=yes (not the default), wipe the object 790 tree and rebuild from scratch to prevent spurious test failures. 791 This is only needed once: the misnumbered libraries and misplaced 792 binaries have been added to OptionalObsoleteFiles.inc so they will 793 be removed during a clean upgrade. 794 79520140512: 796 Clang and llvm have been upgraded to 3.4.1 release. 797 79820140508: 799 We bogusly installed src.opts.mk in /usr/share/mk. This file should 800 be removed to avoid issues in the future (and has been added to 801 ObsoleteFiles.inc). 802 80320140505: 804 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 805 past, it affected all builds that used the bsd.*.mk files. The old 806 behavior was a bug, but people may have relied upon it. To get this 807 behavior back, you can .include /etc/src.conf from /etc/make.conf 808 (which is still global and isn't changed). This also changes the 809 behavior of incremental builds inside the tree of individual 810 directories. Set MAKESYSPATH to ".../share/mk" to do that. 811 Although this has survived make universe and some upgrade scenarios, 812 other upgrade scenarios may have broken. At least one form of 813 temporary breakage was fixed with MAKESYSPATH settings for buildworld 814 as well... In cases where MAKESYSPATH isn't working with this 815 setting, you'll need to set it to the full path to your tree. 816 817 One side effect of all this cleaning up is that bsd.compiler.mk 818 is no longer implicitly included by bsd.own.mk. If you wish to 819 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 820 as well. 821 82220140430: 823 The lindev device has been removed since /dev/full has been made a 824 standard device. __FreeBSD_version has been bumped. 825 82620140424: 827 The knob WITHOUT_VI was added to the base system, which controls 828 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 829 in order to reorder files share/termcap and didn't build ex(1) as a 830 build tool, so building/installing with WITH_VI is highly advised for 831 build hosts for older releases. 832 833 This issue has been fixed in stable/9 and stable/10 in r277022 and 834 r276991, respectively. 835 83620140418: 837 The YES_HESIOD knob has been removed. It has been obsolete for 838 a decade. Please move to using WITH_HESIOD instead or your builds 839 will silently lack HESIOD. 840 84120140405: 842 The uart(4) driver has been changed with respect to its handling 843 of the low-level console. Previously the uart(4) driver prevented 844 any process from changing the baudrate or the CLOCAL and HUPCL 845 control flags. By removing the restrictions, operators can make 846 changes to the serial console port without having to reboot. 847 However, when getty(8) is started on the serial device that is 848 associated with the low-level console, a misconfigured terminal 849 line in /etc/ttys will now have a real impact. 850 Before upgrading the kernel, make sure that /etc/ttys has the 851 serial console device configured as 3wire without baudrate to 852 preserve the previous behaviour. E.g: 853 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 854 85520140306: 856 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 857 to improve performance. To re-enable it, if needed, run rpcbind 858 with command line option -W. 859 86020140226: 861 Switched back to the GPL dtc compiler due to updates in the upstream 862 dts files not being supported by the BSDL dtc compiler. You will need 863 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 864 may result while building dtb files during a kernel build if you fail 865 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 866 86720140216: 868 Clang and llvm have been upgraded to 3.4 release. 869 87020140216: 871 The nve(4) driver has been removed. Please use the nfe(4) driver 872 for NVIDIA nForce MCP Ethernet adapters instead. 873 87420140212: 875 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 876 This could cause certain C++ applications using shared libraries built 877 against the previous version of libc++ to crash. The incompatibility 878 has now been fixed, but any C++ applications or shared libraries built 879 between r261283 and r261801 should be recompiled. 880 88120140204: 882 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 883 capability mode support. Please note that enabling the feature in 884 kernel is still highly recommended. 885 88620140131: 887 OpenSSH is now built with sandbox support, and will use sandbox as 888 the default privilege separation method. This requires Capsicum 889 capability mode support in kernel. 890 89120140128: 892 The libelf and libdwarf libraries have been updated to newer 893 versions from upstream. Shared library version numbers for 894 these two libraries were bumped. Any ports or binaries 895 requiring these two libraries should be recompiled. 896 __FreeBSD_version is bumped to 1100006. 897 89820140110: 899 If a Makefile in a tests/ directory was auto-generating a Kyuafile 900 instead of providing an explicit one, this would prevent such 901 Makefile from providing its own Kyuafile in the future during 902 NO_CLEAN builds. This has been fixed in the Makefiles but manual 903 intervention is needed to clean an objdir if you use NO_CLEAN: 904 # find /usr/obj -name Kyuafile | xargs rm -f 905 90620131213: 907 The behavior of gss_pseudo_random() for the krb5 mechanism 908 has changed, for applications requesting a longer random string 909 than produced by the underlying enctype's pseudo-random() function. 910 In particular, the random string produced from a session key of 911 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 912 be different at the 17th octet and later, after this change. 913 The counter used in the PRF+ construction is now encoded as a 914 big-endian integer in accordance with RFC 4402. 915 __FreeBSD_version is bumped to 1100004. 916 91720131108: 918 The WITHOUT_ATF build knob has been removed and its functionality 919 has been subsumed into the more generic WITHOUT_TESTS. If you were 920 using the former to disable the build of the ATF libraries, you 921 should change your settings to use the latter. 922 92320131025: 924 The default version of mtree is nmtree which is obtained from 925 NetBSD. The output is generally the same, but may vary 926 slightly. If you found you need identical output adding 927 "-F freebsd9" to the command line should do the trick. For the 928 time being, the old mtree is available as fmtree. 929 93020131014: 931 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 932 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 933 1.1.4_8 and verify bsdyml not linked in, before running "make 934 delete-old-libs": 935 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 936 or 937 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 938 93920131010: 940 The stable/10 branch has been created in subversion from head 941 revision r256279. 942 94320131010: 944 The rc.d/jail script has been updated to support jail(8) 945 configuration file. The "jail_<jname>_*" rc.conf(5) variables 946 for per-jail configuration are automatically converted to 947 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 948 This is transparently backward compatible. See below about some 949 incompatibilities and rc.conf(5) manual page for more details. 950 951 These variables are now deprecated in favor of jail(8) configuration 952 file. One can use "rc.d/jail config <jname>" command to generate 953 a jail(8) configuration file in /var/run/jail.<jname>.conf without 954 running the jail(8) utility. The default pathname of the 955 configuration file is /etc/jail.conf and can be specified by 956 using $jail_conf or $jail_<jname>_conf variables. 957 958 Please note that jail_devfs_ruleset accepts an integer at 959 this moment. Please consider to rewrite the ruleset name 960 with an integer. 961 96220130930: 963 BIND has been removed from the base system. If all you need 964 is a local resolver, simply enable and start the local_unbound 965 service instead. Otherwise, several versions of BIND are 966 available in the ports tree. The dns/bind99 port is one example. 967 968 With this change, nslookup(1) and dig(1) are no longer in the base 969 system. Users should instead use host(1) and drill(1) which are 970 in the base system. Alternatively, nslookup and dig can 971 be obtained by installing the dns/bind-tools port. 972 97320130916: 974 With the addition of unbound(8), a new unbound user is now 975 required during installworld. "mergemaster -p" can be used to 976 add the user prior to installworld, as documented in the handbook. 977 97820130911: 979 OpenSSH is now built with DNSSEC support, and will by default 980 silently trust signed SSHFP records. This can be controlled with 981 the VerifyHostKeyDNS client configuration setting. DNSSEC support 982 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 983 98420130906: 985 The GNU Compiler Collection and C++ standard library (libstdc++) 986 are no longer built by default on platforms where clang is the system 987 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 988 options in src.conf. 989 99020130905: 991 The PROCDESC kernel option is now part of the GENERIC kernel 992 configuration and is required for the rwhod(8) to work. 993 If you are using custom kernel configuration, you should include 994 'options PROCDESC'. 995 99620130905: 997 The API and ABI related to the Capsicum framework was modified 998 in backward incompatible way. The userland libraries and programs 999 have to be recompiled to work with the new kernel. This includes the 1000 following libraries and programs, but the whole buildworld is 1001 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 1002 kdump, procstat, rwho, rwhod, uniq. 1003 100420130903: 1005 AES-NI intrinsic support has been added to gcc. The AES-NI module 1006 has been updated to use this support. A new gcc is required to build 1007 the aesni module on both i386 and amd64. 1008 100920130821: 1010 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 1011 Thus "device padlock_rng" and "device rdrand_rng" should be 1012 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 1013 101420130813: 1015 WITH_ICONV has been split into two feature sets. WITH_ICONV now 1016 enables just the iconv* functionality and is now on by default. 1017 WITH_LIBICONV_COMPAT enables the libiconv api and link time 1018 compatibility. Set WITHOUT_ICONV to build the old way. 1019 If you have been using WITH_ICONV before, you will very likely 1020 need to turn on WITH_LIBICONV_COMPAT. 1021 102220130806: 1023 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1024 Illumos origin, including ZFS. If you have INVARIANTS in your 1025 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1026 explicitly. 1027 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1028 locks if WITNESS option was set. Because that generated a lot of 1029 witness(9) reports and all of them were believed to be false 1030 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1031 can be used to achieve the previous behavior. 1032 103320130806: 1034 Timer values in IPv6 data structures now use time_uptime instead 1035 of time_second. Although this is not a user-visible functional 1036 change, userland utilities which directly use them---ndp(8), 1037 rtadvd(8), and rtsold(8) in the base system---need to be updated 1038 to r253970 or later. 1039 104020130802: 1041 find -delete can now delete the pathnames given as arguments, 1042 instead of only files found below them or if the pathname did 1043 not contain any slashes. Formerly, the following error message 1044 would result: 1045 1046 find: -delete: <path>: relative path potentially not safe 1047 1048 Deleting the pathnames given as arguments can be prevented 1049 without error messages using -mindepth 1 or by changing 1050 directory and passing "." as argument to find. This works in the 1051 old as well as the new version of find. 1052 105320130726: 1054 Behavior of devfs rules path matching has been changed. 1055 Pattern is now always matched against fully qualified devfs 1056 path and slash characters must be explicitly matched by 1057 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1058 subdirectories must be reviewed. 1059 106020130716: 1061 The default ARM ABI has changed to the ARM EABI. The old ABI is 1062 incompatible with the ARM EABI and all programs and modules will 1063 need to be rebuilt to work with a new kernel. 1064 1065 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1066 1067 NOTE: Support for the old ABI will be removed in the future and 1068 users are advised to upgrade. 1069 107020130709: 1071 pkg_install has been disconnected from the build if you really need it 1072 you should add WITH_PKGTOOLS in your src.conf(5). 1073 107420130709: 1075 Most of network statistics structures were changed to be able 1076 keep 64-bits counters. Thus all tools, that work with networking 1077 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1078 107920130618: 1080 Fix a bug that allowed a tracing process (e.g. gdb) to write 1081 to a memory-mapped file in the traced process's address space 1082 even if neither the traced process nor the tracing process had 1083 write access to that file. 1084 108520130615: 1086 CVS has been removed from the base system. An exact copy 1087 of the code is available from the devel/cvs port. 1088 108920130613: 1090 Some people report the following error after the switch to bmake: 1091 1092 make: illegal option -- J 1093 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1094 ... 1095 *** [buildworld] Error code 2 1096 1097 this likely due to an old instance of make in 1098 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1099 which src/Makefile will use that blindly, if it exists, so if 1100 you see the above error: 1101 1102 rm -rf `make -V MAKEPATH` 1103 1104 should resolve it. 1105 110620130516: 1107 Use bmake by default. 1108 Whereas before one could choose to build with bmake via 1109 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1110 make. The goal is to remove these knobs for 10-RELEASE. 1111 1112 It is worth noting that bmake (like gmake) treats the command 1113 line as the unit of failure, rather than statements within the 1114 command line. Thus '(cd some/where && dosomething)' is safer 1115 than 'cd some/where; dosomething'. The '()' allows consistent 1116 behavior in parallel build. 1117 111820130429: 1119 Fix a bug that allows NFS clients to issue READDIR on files. 1120 112120130426: 1122 The WITHOUT_IDEA option has been removed because 1123 the IDEA patent expired. 1124 112520130426: 1126 The sysctl which controls TRIM support under ZFS has been renamed 1127 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1128 enabled by default. 1129 113020130425: 1131 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1132 rather than creating it's own in the temporary directory in 1133 order allow access to bootstrapped versions of tools such as 1134 install and mtree. When upgrading from version of FreeBSD where 1135 the install command does not support -l, you will need to 1136 install a new mergemaster command if mergemaster -p is required. 1137 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1138 && make install). 1139 114020130404: 1141 Legacy ATA stack, disabled and replaced by new CAM-based one since 1142 FreeBSD 9.0, completely removed from the sources. Kernel modules 1143 atadisk and atapi*, user-level tools atacontrol and burncd are 1144 removed. Kernel option `options ATA_CAM` is now permanently enabled 1145 and removed. 1146 114720130319: 1148 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1149 and socketpair(2). Software, in particular Kerberos, may 1150 automatically detect and use these during building. The resulting 1151 binaries will not work on older kernels. 1152 115320130308: 1154 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1155 information, see the respective 20130304 entry). 1156 115720130304: 1158 Recent commits to callout(9) changed the size of struct callout, 1159 so the KBI is probably heavily disturbed. Also, some functions 1160 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1161 by macros. Every kernel module using it won't load, so rebuild 1162 is requested. 1163 1164 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1165 but does not initialize by default (because of the new CTL_DISABLE 1166 option) to save memory. To re-enable it, remove the CTL_DISABLE 1167 option from the kernel config file or set kern.cam.ctl.disable=0 1168 in /boot/loader.conf. 1169 117020130301: 1171 The ctl device has been disabled in GENERIC for i386 and amd64. 1172 This was done due to the extra memory being allocated at system 1173 initialisation time by the ctl driver which was only used if 1174 a CAM target device was created. This makes a FreeBSD system 1175 unusable on 128MB or less of RAM. 1176 117720130208: 1178 A new compression method (lz4) has been merged to -HEAD. Please 1179 refer to zpool-features(7) for more information. 1180 1181 Please refer to the "ZFS notes" section of this file for information 1182 on upgrading boot ZFS pools. 1183 118420130129: 1185 A BSD-licensed patch(1) variant has been added and is installed 1186 as bsdpatch, being the GNU version the default patch. 1187 To inverse the logic and use the BSD-licensed one as default, 1188 while having the GNU version installed as gnupatch, rebuild 1189 and install world with the WITH_BSD_PATCH knob set. 1190 119120130121: 1192 Due to the use of the new -l option to install(1) during build 1193 and install, you must take care not to directly set the INSTALL 1194 make variable in your /etc/make.conf, /etc/src.conf, or on the 1195 command line. If you wish to use the -C flag for all installs 1196 you may be able to add INSTALL+=-C to /etc/make.conf or 1197 /etc/src.conf. 1198 119920130118: 1200 The install(1) option -M has changed meaning and now takes an 1201 argument that is a file or path to append logs to. In the 1202 unlikely event that -M was the last option on the command line 1203 and the command line contained at least two files and a target 1204 directory the first file will have logs appended to it. The -M 1205 option served little practical purpose in the last decade so its 1206 use is expected to be extremely rare. 1207 120820121223: 1209 After switching to Clang as the default compiler some users of ZFS 1210 on i386 systems started to experience stack overflow kernel panics. 1211 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1212 121320121222: 1214 GEOM_LABEL now mangles label names read from file system metadata. 1215 Mangling affect labels containing spaces, non-printable characters, 1216 '%' or '"'. Device names in /etc/fstab and other places may need to 1217 be updated. 1218 121920121217: 1220 By default, only the 10 most recent kernel dumps will be saved. To 1221 restore the previous behaviour (no limit on the number of kernel dumps 1222 stored in the dump directory) add the following line to /etc/rc.conf: 1223 1224 savecore_flags="" 1225 122620121201: 1227 With the addition of auditdistd(8), a new auditdistd user is now 1228 required during installworld. "mergemaster -p" can be used to 1229 add the user prior to installworld, as documented in the handbook. 1230 123120121117: 1232 The sin6_scope_id member variable in struct sockaddr_in6 is now 1233 filled by the kernel before passing the structure to the userland via 1234 sysctl or routing socket. This means the KAME-specific embedded scope 1235 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1236 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1237 __FreeBSD_version is bumped to 1000025. 1238 123920121105: 1240 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1241 This means that the world and kernel will be compiled with clang 1242 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1243 and /usr/bin/cpp. To disable this behavior and revert to building 1244 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1245 of current may need to bootstrap WITHOUT_CLANG first if the clang 1246 build fails (its compatibility window doesn't extend to the 9 stable 1247 branch point). 1248 124920121102: 1250 The IPFIREWALL_FORWARD kernel option has been removed. Its 1251 functionality now turned on by default. 1252 125320121023: 1254 The ZERO_COPY_SOCKET kernel option has been removed and 1255 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1256 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1257 mechanism which is not safe and may result in kernel crashes. 1258 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1259 driver supports disposeable external page sized mbuf storage. 1260 Proper replacements for both zero-copy mechanisms are under 1261 consideration and will eventually lead to complete removal 1262 of the two kernel options. 1263 126420121023: 1265 The IPv4 network stack has been converted to network byte 1266 order. The following modules need to be recompiled together 1267 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1268 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1269 127020121022: 1271 Support for non-MPSAFE filesystems was removed from VFS. The 1272 VFS_VERSION was bumped, all filesystem modules shall be 1273 recompiled. 1274 127520121018: 1276 All the non-MPSAFE filesystems have been disconnected from 1277 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1278 portalfs, smbfs, xfs. 1279 128020121016: 1281 The interface cloning API and ABI has changed. The following 1282 modules need to be recompiled together with kernel: 1283 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1284 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1285 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1286 128720121015: 1288 The sdhci driver was split in two parts: sdhci (generic SD Host 1289 Controller logic) and sdhci_pci (actual hardware driver). 1290 No kernel config modifications are required, but if you 1291 load sdhc as a module you must switch to sdhci_pci instead. 1292 129320121014: 1294 Import the FUSE kernel and userland support into base system. 1295 129620121013: 1297 The GNU sort(1) program has been removed since the BSD-licensed 1298 sort(1) has been the default for quite some time and no serious 1299 problems have been reported. The corresponding WITH_GNU_SORT 1300 knob has also gone. 1301 130220121006: 1303 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1304 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1305 with new kernel. 1306 130720121001: 1308 The net80211(4) ABI has been changed to allow for improved driver 1309 PS-POLL and power-save support. All wireless drivers need to be 1310 recompiled to work with the new kernel. 1311 131220120913: 1313 The random(4) support for the VIA hardware random number 1314 generator (`PADLOCK') is no longer enabled unconditionally. 1315 Add the padlock_rng device in the custom kernel config if 1316 needed. The GENERIC kernels on i386 and amd64 do include the 1317 device, so the change only affects the custom kernel 1318 configurations. 1319 132020120908: 1321 The pf(4) packet filter ABI has been changed. pfctl(8) and 1322 snmp_pf module need to be recompiled to work with new kernel. 1323 132420120828: 1325 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1326 to -HEAD. Pools that have empty_bpobj in active state can not be 1327 imported read-write with ZFS implementations that do not support 1328 this feature. For more information read the zpool-features(5) 1329 manual page. 1330 133120120727: 1332 The sparc64 ZFS loader has been changed to no longer try to auto- 1333 detect ZFS providers based on diskN aliases but now requires these 1334 to be explicitly listed in the OFW boot-device environment variable. 1335 133620120712: 1337 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1338 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1339 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1340 134120120712: 1342 The following sysctls and tunables have been renamed for consistency 1343 with other variables: 1344 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1345 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1346 134720120628: 1348 The sort utility has been replaced with BSD sort. For now, GNU sort 1349 is also available as "gnusort" or the default can be set back to 1350 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1351 installed as "bsdsort". 1352 135320120611: 1354 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1355 Starting with this version the old system of ZFS pool versioning 1356 is superseded by "feature flags". This concept enables forward 1357 compatibility against certain future changes in functionality of ZFS 1358 pools. The first read-only compatible "feature flag" for ZFS pools 1359 is named "com.delphix:async_destroy". For more information 1360 read the new zpool-features(5) manual page. 1361 Please refer to the "ZFS notes" section of this file for information 1362 on upgrading boot ZFS pools. 1363 136420120417: 1365 The malloc(3) implementation embedded in libc now uses sources imported 1366 as contrib/jemalloc. The most disruptive API change is to 1367 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1368 delete it prior to installworld, and optionally re-create it using the 1369 new format after rebooting. See malloc.conf(5) for details 1370 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1371 NAMESPACE section). 1372 137320120328: 1374 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1375 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1376 now spelled mips. This is to aid compatibility with third-party 1377 software that expects this naming scheme in uname(3). Little-endian 1378 settings are unchanged. If you are updating a big-endian mips64 machine 1379 from before this change, you may need to set MACHINE_ARCH=mips64 in 1380 your environment before the new build system will recognize your machine. 1381 138220120306: 1383 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1384 platforms. 1385 138620120229: 1387 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1388 nullfs(5) did not pass through all behaviours to the underlying layer, 1389 as a result if we bound to a socket on the lower layer we could connect 1390 only to the lower path; if we bound to the upper layer we could connect 1391 only to the upper path. The new behavior is one can connect to both the 1392 lower and the upper paths regardless what layer path one binds to. 1393 139420120211: 1395 The getifaddrs upgrade path broken with 20111215 has been restored. 1396 If you have upgraded in between 20111215 and 20120209 you need to 1397 recompile libc again with your kernel. You still need to recompile 1398 world to be able to configure CARP but this restriction already 1399 comes from 20111215. 1400 140120120114: 1402 The set_rcvar() function has been removed from /etc/rc.subr. All 1403 base and ports rc.d scripts have been updated, so if you have a 1404 port installed with a script in /usr/local/etc/rc.d you can either 1405 hand-edit the rcvar= line, or reinstall the port. 1406 1407 An easy way to handle the mass-update of /etc/rc.d: 1408 rm /etc/rc.d/* && mergemaster -i 1409 141020120109: 1411 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1412 on the current CPU and prevents other threads from running. 1413 This behavior can be reverted using the kern.stop_scheduler_on_panic 1414 tunable/sysctl. 1415 The new behavior can be incompatible with kern.sync_on_panic. 1416 141720111215: 1418 The carp(4) facility has been changed significantly. Configuration 1419 of the CARP protocol via ifconfig(8) has changed, as well as format 1420 of CARP events submitted to devd(8) has changed. See manual pages 1421 for more information. The arpbalance feature of carp(4) is currently 1422 not supported anymore. 1423 1424 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1425 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1426 need to be recompiled. 1427 142820111122: 1429 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1430 /dev/wmistat0. 1431 143220111108: 1433 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1434 explicitely support non-MPSAFE filesystems. 1435 It is on by default for all supported platform at this present 1436 time. 1437 143820111101: 1439 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1440 i386 and pc98 GENERIC kernel configuration files. 1441 144220110930: 1443 sysinstall has been removed 1444 144520110923: 1446 The stable/9 branch created in subversion. This corresponds to the 1447 RELENG_9 branch in CVS. 1448 1449COMMON ITEMS: 1450 1451 General Notes 1452 ------------- 1453 Avoid using make -j when upgrading. While generally safe, there are 1454 sometimes problems using -j to upgrade. If your upgrade fails with 1455 -j, please try again without -j. From time to time in the past there 1456 have been problems using -j with buildworld and/or installworld. This 1457 is especially true when upgrading between "distant" versions (eg one 1458 that cross a major release boundary or several minor releases, or when 1459 several months have passed on the -current branch). 1460 1461 Sometimes, obscure build problems are the result of environment 1462 poisoning. This can happen because the make utility reads its 1463 environment when searching for values for global variables. To run 1464 your build attempts in an "environmental clean room", prefix all make 1465 commands with 'env -i '. See the env(1) manual page for more details. 1466 1467 When upgrading from one major version to another it is generally best 1468 to upgrade to the latest code in the currently installed branch first, 1469 then do an upgrade to the new branch. This is the best-tested upgrade 1470 path, and has the highest probability of being successful. Please try 1471 this approach before reporting problems with a major version upgrade. 1472 1473 When upgrading a live system, having a root shell around before 1474 installing anything can help undo problems. Not having a root shell 1475 around can lead to problems if pam has changed too much from your 1476 starting point to allow continued authentication after the upgrade. 1477 1478 This file should be read as a log of events. When a later event changes 1479 information of a prior event, the prior event should not be deleted. 1480 Instead, a pointer to the entry with the new information should be 1481 placed in the old entry. Readers of this file should also sanity check 1482 older entries before relying on them blindly. Authors of new entries 1483 should write them with this in mind. 1484 1485 ZFS notes 1486 --------- 1487 When upgrading the boot ZFS pool to a new version, always follow 1488 these two steps: 1489 1490 1.) recompile and reinstall the ZFS boot loader and boot block 1491 (this is part of "make buildworld" and "make installworld") 1492 1493 2.) update the ZFS boot block on your boot drive 1494 1495 The following example updates the ZFS boot block on the first 1496 partition (freebsd-boot) of a GPT partitioned drive ada0: 1497 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1498 1499 Non-boot pools do not need these updates. 1500 1501 To build a kernel 1502 ----------------- 1503 If you are updating from a prior version of FreeBSD (even one just 1504 a few days old), you should follow this procedure. It is the most 1505 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1506 1507 make kernel-toolchain 1508 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1509 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1510 1511 To test a kernel once 1512 --------------------- 1513 If you just want to boot a kernel once (because you are not sure 1514 if it works, or if you want to boot a known bad kernel to provide 1515 debugging information) run 1516 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1517 nextboot -k testkernel 1518 1519 To just build a kernel when you know that it won't mess you up 1520 -------------------------------------------------------------- 1521 This assumes you are already running a CURRENT system. Replace 1522 ${arch} with the architecture of your machine (e.g. "i386", 1523 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1524 1525 cd src/sys/${arch}/conf 1526 config KERNEL_NAME_HERE 1527 cd ../compile/KERNEL_NAME_HERE 1528 make depend 1529 make 1530 make install 1531 1532 If this fails, go to the "To build a kernel" section. 1533 1534 To rebuild everything and install it on the current system. 1535 ----------------------------------------------------------- 1536 # Note: sometimes if you are running current you gotta do more than 1537 # is listed here if you are upgrading from a really old current. 1538 1539 <make sure you have good level 0 dumps> 1540 make buildworld 1541 make kernel KERNCONF=YOUR_KERNEL_HERE 1542 [1] 1543 <reboot in single user> [3] 1544 mergemaster -Fp [5] 1545 make installworld 1546 mergemaster -Fi [4] 1547 make delete-old [6] 1548 <reboot> 1549 1550 To cross-install current onto a separate partition 1551 -------------------------------------------------- 1552 # In this approach we use a separate partition to hold 1553 # current's root, 'usr', and 'var' directories. A partition 1554 # holding "/", "/usr" and "/var" should be about 2GB in 1555 # size. 1556 1557 <make sure you have good level 0 dumps> 1558 <boot into -stable> 1559 make buildworld 1560 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1561 <maybe newfs current's root partition> 1562 <mount current's root partition on directory ${CURRENT_ROOT}> 1563 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1564 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1565 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1566 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1567 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1568 <reboot into current> 1569 <do a "native" rebuild/install as described in the previous section> 1570 <maybe install compatibility libraries from ports/misc/compat*> 1571 <reboot> 1572 1573 1574 To upgrade in-place from stable to current 1575 ---------------------------------------------- 1576 <make sure you have good level 0 dumps> 1577 make buildworld [9] 1578 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1579 [1] 1580 <reboot in single user> [3] 1581 mergemaster -Fp [5] 1582 make installworld 1583 mergemaster -Fi [4] 1584 make delete-old [6] 1585 <reboot> 1586 1587 Make sure that you've read the UPDATING file to understand the 1588 tweaks to various things you need. At this point in the life 1589 cycle of current, things change often and you are on your own 1590 to cope. The defaults can also change, so please read ALL of 1591 the UPDATING entries. 1592 1593 Also, if you are tracking -current, you must be subscribed to 1594 freebsd-current@freebsd.org. Make sure that before you update 1595 your sources that you have read and understood all the recent 1596 messages there. If in doubt, please track -stable which has 1597 much fewer pitfalls. 1598 1599 [1] If you have third party modules, such as vmware, you 1600 should disable them at this point so they don't crash your 1601 system on reboot. 1602 1603 [3] From the bootblocks, boot -s, and then do 1604 fsck -p 1605 mount -u / 1606 mount -a 1607 cd src 1608 adjkerntz -i # if CMOS is wall time 1609 Also, when doing a major release upgrade, it is required that 1610 you boot into single user mode to do the installworld. 1611 1612 [4] Note: This step is non-optional. Failure to do this step 1613 can result in a significant reduction in the functionality of the 1614 system. Attempting to do it by hand is not recommended and those 1615 that pursue this avenue should read this file carefully, as well 1616 as the archives of freebsd-current and freebsd-hackers mailing lists 1617 for potential gotchas. The -U option is also useful to consider. 1618 See mergemaster(8) for more information. 1619 1620 [5] Usually this step is a noop. However, from time to time 1621 you may need to do this if you get unknown user in the following 1622 step. It never hurts to do it all the time. You may need to 1623 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1624 install) after the buildworld before this step if you last updated 1625 from current before 20130425 or from -stable before 20130430. 1626 1627 [6] This only deletes old files and directories. Old libraries 1628 can be deleted by "make delete-old-libs", but you have to make 1629 sure that no program is using those libraries anymore. 1630 1631 [8] In order to have a kernel that can run the 4.x binaries needed to 1632 do an installworld, you must include the COMPAT_FREEBSD4 option in 1633 your kernel. Failure to do so may leave you with a system that is 1634 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1635 required to run the 5.x binaries on more recent kernels. And so on 1636 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1637 1638 Make sure that you merge any new devices from GENERIC since the 1639 last time you updated your kernel config file. 1640 1641 [9] When checking out sources, you must include the -P flag to have 1642 cvs prune empty directories. 1643 1644 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1645 "?=" instead of the "=" assignment operator, so that buildworld can 1646 override the CPUTYPE if it needs to. 1647 1648 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1649 not on the command line, or in /etc/make.conf. buildworld will 1650 warn if it is improperly defined. 1651FORMAT: 1652 1653This file contains a list, in reverse chronological order, of major 1654breakages in tracking -current. It is not guaranteed to be a complete 1655list of such breakages, and only contains entries since September 23, 2011. 1656If you need to see UPDATING entries from before that date, you will need 1657to fetch an UPDATING file from an older FreeBSD release. 1658 1659Copyright information: 1660 1661Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1662 1663Redistribution, publication, translation and use, with or without 1664modification, in full or in part, in any form or format of this 1665document are permitted without further permission from the author. 1666 1667THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1668IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1669WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1670DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1671INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1672(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1673SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1674HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1675STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1676IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1677POSSIBILITY OF SUCH DAMAGE. 1678 1679Contact Warner Losh if you have any questions about your use of 1680this document. 1681 1682$FreeBSD: stable/11/UPDATING 318864 2017-05-25 09:27:33Z jlh $ 1683