UPDATING revision 315515
1Updating Information for FreeBSD current users. 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG and WITH_GCC to bootstrap to 16the tip of head, and then rebuild without this option. The bootstrap process 17from older version of current across the gcc/clang cutover is a bit fragile. 18 1920170319: 20 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT 21 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of 22 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed, 23 and now NAT-T is supported by default. Security associations now use 24 the single namespace for SPI allocation, so if you use several manually 25 configured security associations with the same SPI, this configuration 26 needs modification. 27 2820161217: 29 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 30 Please see the 20141231 entry below for information about prerequisites 31 and upgrading, if you are not already using clang 3.5.0 or higher. 32 3320161124: 34 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 35 Please see the 20141231 entry below for information about prerequisites 36 and upgrading, if you are not already using clang 3.5.0 or higher. 37 3820161119: 39 The layout of the pmap structure has changed for powerpc to put the pmap 40 statistics at the front for all CPU variations. libkvm(3) and all tools 41 that link against it need to be recompiled. 42 4320161030: 44 isl(4) and cyapa(4) drivers now require a new driver, 45 chromebook_platform(4), to work properly on Chromebook-class hardware. 46 On other types of hardware the drivers may need to be configured using 47 device hints. Please see the corresponding manual pages for details. 48 4920161210: 50 Relocatable object files with the extension of .So have been renamed 51 to use an extension of .pico instead. The purpose of this change is 52 to avoid a name clash with shared libraries on case-insensitive file 53 systems. On those file systems, foo.So is the same file as foo.so. 54 5520160622: 56 The libc stub for the pipe(2) system call has been replaced with 57 a wrapper that calls the pipe2(2) system call and the pipe(2) 58 system call is now only implemented by the kernels that include 59 "options COMPAT_FREEBSD10" in their config file (this is the 60 default). Users should ensure that this option is enabled in 61 their kernel or upgrade userspace to r302092 before upgrading their 62 kernel. 63 6420160527: 65 CAM will now strip leading spaces from SCSI disks' serial numbers. 66 This will effect users who create UFS filesystems on SCSI disks using 67 those disk's diskid device nodes. For example, if /etc/fstab 68 previously contained a line like 69 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 70 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 71 transforms like gmirror may also be affected. ZFS users should 72 generally be fine. 73 7420160523: 75 The bitstring(3) API has been updated with new functionality and 76 improved performance. But it is binary-incompatible with the old API. 77 Objects built with the new headers may not be linked against objects 78 built with the old headers. 79 8020160520: 81 The brk and sbrk functions have been removed from libc on arm64. 82 Binutils from ports has been updated to not link to these 83 functions and should be updated to the latest version before 84 installing a new libc. 85 8620160517: 87 The armv6 port now defaults to hard float ABI. Limited support 88 for running both hardfloat and soft float on the same system 89 is available using the libraries installed with -DWITH_LIBSOFT. 90 This has only been tested as an upgrade path for installworld 91 and packages may fail or need manual intervention to run. New 92 packages will be needed. 93 94 To update an existing self-hosted armv6hf system, you must add 95 TARGET_ARCH=armv6 on the make command line for both the build 96 and the install steps. 97 9820160510: 99 Kernel modules compiled outside of a kernel build now default to 100 installing to /boot/modules instead of /boot/kernel. Many kernel 101 modules built this way (such as those in ports) already overrode 102 KMODDIR explicitly to install into /boot/modules. However, 103 manually building and installing a module from /sys/modules will 104 now install to /boot/modules instead of /boot/kernel. 105 10620160414: 107 The CAM I/O scheduler has been committed to the kernel. There should be 108 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 109 list of known rogues that claim support for this but actually corrupt 110 data is believed to be complete, be on the lookout for data 111 corruption. The known rogue list is believed to be complete: 112 113 o Crucial MX100, M550 drives with MU01 firmware. 114 o Micron M510 and M550 drives with MU01 firmware. 115 o Micron M500 prior to MU07 firmware 116 o Samsung 830, 840, and 850 all firmwares 117 o FCCT M500 all firmwares 118 119 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 120 with working NCQ TRIM. For Micron branded drives, see your sales rep for 121 updated firmware. Black listed drives will work correctly because these 122 drives work correctly so long as no NCQ TRIMs are sent to them. Given 123 this list is the same as found in Linux, it's believed there are no 124 other rogues in the market place. All other models from the above 125 vendors work. 126 127 To be safe, if you are at all concerned, you can quirk each of your 128 drives to prevent NCQ from being sent by setting: 129 kern.cam.ada.X.quirks="0x2" 130 in loader.conf. If the drive requires the 4k sector quirk, set the 131 quirks entry to 0x3. 132 13320160330: 134 The FAST_DEPEND build option has been removed and its functionality is 135 now the one true way. The old mkdep(1) style of 'make depend' has 136 been removed. See 20160311 for further details. 137 13820160317: 139 Resource range types have grown from unsigned long to uintmax_t. All 140 drivers, and anything using libdevinfo, need to be recompiled. 141 14220160311: 143 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 144 builds. It no longer runs mkdep(1) during 'make depend', and the 145 'make depend' stage can safely be skipped now as it is auto ran 146 when building 'make all' and will generate all SRCS and DPSRCS before 147 building anything else. Dependencies are gathered at compile time with 148 -MF flags kept in separate .depend files per object file. Users should 149 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 150 stale .depend files. 151 15220160306: 153 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 154 kernel modules. Therefore, if you load any kernel modules at boot time, 155 please install the boot loaders after you install the kernel, but before 156 rebooting, e.g.: 157 158 make buildworld 159 make kernel KERNCONF=YOUR_KERNEL_HERE 160 make -C sys/boot install 161 <reboot in single user> 162 163 Then follow the usual steps, described in the General Notes section, 164 below. 165 16620160305: 167 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 168 see the 20141231 entry below for information about prerequisites and 169 upgrading, if you are not already using clang 3.5.0 or higher. 170 17120160301: 172 The AIO subsystem is now a standard part of the kernel. The 173 VFS_AIO kernel option and aio.ko kernel module have been removed. 174 Due to stability concerns, asynchronous I/O requests are only 175 permitted on sockets and raw disks by default. To enable 176 asynchronous I/O requests on all file types, set the 177 vfs.aio.enable_unsafe sysctl to a non-zero value. 178 17920160226: 180 The ELF object manipulation tool objcopy is now provided by the 181 ELF Tool Chain project rather than by GNU binutils. It should be a 182 drop-in replacement, with the addition of arm64 support. The 183 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 184 to obtain the GNU version if necessary. 185 18620160129: 187 Building ZFS pools on top of zvols is prohibited by default. That 188 feature has never worked safely; it's always been prone to deadlocks. 189 Using a zvol as the backing store for a VM guest's virtual disk will 190 still work, even if the guest is using ZFS. Legacy behavior can be 191 restored by setting vfs.zfs.vol.recursive=1. 192 19320160119: 194 The NONE and HPN patches has been removed from OpenSSH. They are 195 still available in the security/openssh-portable port. 196 19720160113: 198 With the addition of ypldap(8), a new _ypldap user is now required 199 during installworld. "mergemaster -p" can be used to add the user 200 prior to installworld, as documented in the handbook. 201 20220151216: 203 The tftp loader (pxeboot) now uses the option root-path directive. As a 204 consequence it no longer looks for a pxeboot.4th file on the tftp 205 server. Instead it uses the regular /boot infrastructure as with the 206 other loaders. 207 20820151211: 209 The code to start recording plug and play data into the modules has 210 been committed. While the old tools will properly build a new kernel, 211 a number of warnings about "unknown metadata record 4" will be produced 212 for an older kldxref. To avoid such warnings, make sure to rebuild 213 the kernel toolchain (or world). Make sure that you have r292078 or 214 later when trying to build 292077 or later before rebuilding. 215 21620151207: 217 Debug data files are now built by default with 'make buildworld' and 218 installed with 'make installworld'. This facilitates debugging but 219 requires more disk space both during the build and for the installed 220 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 221 in src.conf(5). 222 22320151130: 224 r291527 changed the internal interface between the nfsd.ko and 225 nfscommon.ko modules. As such, they must both be upgraded to-gether. 226 __FreeBSD_version has been bumped because of this. 227 22820151108: 229 Add support for unicode collation strings leads to a change of 230 order of files listed by ls(1) for example. To get back to the old 231 behaviour, set LC_COLLATE environment variable to "C". 232 233 Databases administrators will need to reindex their databases given 234 collation results will be different. 235 236 Due to a bug in install(1) it is recommended to remove the ancient 237 locales before running make installworld. 238 239 rm -rf /usr/share/locale/* 240 24120151030: 242 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 243 libcrypto.so.7 or libssl.so.7 must be recompiled. 244 24520151020: 246 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 247 Kernel modules isp_2400_multi and isp_2500_multi were removed and 248 should be replaced with isp_2400 and isp_2500 modules respectively. 249 25020151017: 251 The build previously allowed using 'make -n' to not recurse into 252 sub-directories while showing what commands would be executed, and 253 'make -n -n' to recursively show commands. Now 'make -n' will recurse 254 and 'make -N' will not. 255 25620151012: 257 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 258 and etcupdate will now use this file. A custom sendmail.cf is now 259 updated via this mechanism rather than via installworld. If you had 260 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 261 want to remove the exclusion or change it to "always install". 262 /etc/mail/sendmail.cf is now managed the same way regardless of 263 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 264 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 265 26620151011: 267 Compatibility shims for legacy ATA device names have been removed. 268 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 269 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 270 environment variables, /dev/ad* and /dev/ar* symbolic links. 271 27220151006: 273 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 274 Please see the 20141231 entry below for information about prerequisites 275 and upgrading, if you are not already using clang 3.5.0 or higher. 276 27720150924: 278 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 279 and renamed from .symbols to .debug. This reduces the size requirements 280 on the boot partition or file system and provides consistency with 281 userland debug files. 282 283 When using the supported kernel installation method the 284 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 285 as is done with /boot/kernel. 286 287 Developers wishing to maintain the historical behavior of installing 288 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 289 29020150827: 291 The wireless drivers had undergone changes that remove the 'parent 292 interface' from the ifconfig -l output. The rc.d network scripts 293 used to check presence of a parent interface in the list, so old 294 scripts would fail to start wireless networking. Thus, etcupdate(3) 295 or mergemaster(8) run is required after kernel update, to update your 296 rc.d scripts in /etc. 297 29820150827: 299 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 300 These configurations are now automatically interpreted as 301 'scrub fragment reassemble'. 302 30320150817: 304 Kernel-loadable modules for the random(4) device are back. To use 305 them, the kernel must have 306 307 device random 308 options RANDOM_LOADABLE 309 310 kldload(8) can then be used to load random_fortuna.ko 311 or random_yarrow.ko. Please note that due to the indirect 312 function calls that the loadable modules need to provide, 313 the build-in variants will be slightly more efficient. 314 315 The random(4) kernel option RANDOM_DUMMY has been retired due to 316 unpopularity. It was not all that useful anyway. 317 31820150813: 319 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 320 Control over building the ELF Tool Chain tools is now provided by 321 the WITHOUT_TOOLCHAIN knob. 322 32320150810: 324 The polarity of Pulse Per Second (PPS) capture events with the 325 uart(4) driver has been corrected. Prior to this change the PPS 326 "assert" event corresponded to the trailing edge of a positive PPS 327 pulse and the "clear" event was the leading edge of the next pulse. 328 329 As the width of a PPS pulse in a typical GPS receiver is on the 330 order of 1 millisecond, most users will not notice any significant 331 difference with this change. 332 333 Anyone who has compensated for the historical polarity reversal by 334 configuring a negative offset equal to the pulse width will need to 335 remove that workaround. 336 33720150809: 338 The default group assigned to /dev/dri entries has been changed 339 from 'wheel' to 'video' with the id of '44'. If you want to have 340 access to the dri devices please add yourself to the video group 341 with: 342 343 # pw groupmod video -m $USER 344 34520150806: 346 The menu.rc and loader.rc files will now be replaced during 347 upgrades. Please migrate local changes to menu.rc.local and 348 loader.rc.local instead. 349 35020150805: 351 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 352 strings and strip have been removed. The src.conf(5) knob 353 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 354 35520150728: 356 As ZFS requires more kernel stack pages than is the default on some 357 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 358 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 359 360 Please consider using 'options KSTACK_PAGES=X' where X is greater 361 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 362 36320150706: 364 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 365 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 366 default, i.e., they will not contain "::". For example, instead 367 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 368 to have a more specific match, such as different map entries for 369 IPv6:0:0 vs IPv6:0. This change requires that configuration 370 data (including maps, files, classes, custom ruleset, etc.) must 371 use the same format, so make certain such configuration data is 372 upgrading. As a very simple check search for patterns like 373 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 374 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 375 the cf option UseCompressedIPv6Addresses. 376 37720150630: 378 The default kernel entropy-processing algorithm is now 379 Fortuna, replacing Yarrow. 380 381 Assuming you have 'device random' in your kernel config 382 file, the configurations allow a kernel option to override 383 this default. You may choose *ONE* of: 384 385 options RANDOM_YARROW # Legacy /dev/random algorithm. 386 options RANDOM_DUMMY # Blocking-only driver. 387 388 If you have neither, you get Fortuna. For most people, 389 read no further, Fortuna will give a /dev/random that works 390 like it always used to, and the difference will be irrelevant. 391 392 If you remove 'device random', you get *NO* kernel-processed 393 entropy at all. This may be acceptable to folks building 394 embedded systems, but has complications. Carry on reading, 395 and it is assumed you know what you need. 396 397 *PLEASE* read random(4) and random(9) if you are in the 398 habit of tweaking kernel configs, and/or if you are a member 399 of the embedded community, wanting specific and not-usual 400 behaviour from your security subsystems. 401 402 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 403 random', you will NOT have a functioning /dev/random, and 404 many cryptographic features will not work, including SSH. 405 You may also find strange behaviour from the random(3) set 406 of library functions, in particular sranddev(3), srandomdev(3) 407 and arc4random(3). The reason for this is that the KERN_ARND 408 sysctl only returns entropy if it thinks it has some to 409 share, and with RANDOM_DUMMY or no 'device random' this 410 will never happen. 411 41220150623: 413 An additional fix for the issue described in the 20150614 sendmail 414 entry below has been been committed in revision 284717. 415 41620150616: 417 FreeBSD's old make (fmake) has been removed from the system. It is 418 available as the devel/fmake port or via pkg install fmake. 419 42020150615: 421 The fix for the issue described in the 20150614 sendmail entry 422 below has been been committed in revision 284436. The work 423 around described in that entry is no longer needed unless the 424 default setting is overridden by a confDH_PARAMETERS configuration 425 setting of '5' or pointing to a 512 bit DH parameter file. 426 42720150614: 428 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 429 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 430 and devel/kyua to version 0.20+ and adjust any calling code to work 431 with Kyuafile and kyua. 432 43320150614: 434 The import of openssl to address the FreeBSD-SA-15:10.openssl 435 security advisory includes a change which rejects handshakes 436 with DH parameters below 768 bits. sendmail releases prior 437 to 8.15.2 (not yet released), defaulted to a 512 bit 438 DH parameter setting for client connections. To work around 439 this interoperability, sendmail can be configured to use a 440 2048 bit DH parameter by: 441 442 1. Edit /etc/mail/`hostname`.mc 443 2. If a setting for confDH_PARAMETERS does not exist or 444 exists and is set to a string beginning with '5', 445 replace it with '2'. 446 3. If a setting for confDH_PARAMETERS exists and is set to 447 a file path, create a new file with: 448 openssl dhparam -out /path/to/file 2048 449 4. Rebuild the .cf file: 450 cd /etc/mail/; make; make install 451 5. Restart sendmail: 452 cd /etc/mail/; make restart 453 454 A sendmail patch is coming, at which time this file will be 455 updated. 456 45720150604: 458 Generation of legacy formatted entries have been disabled by default 459 in pwd_mkdb(8), as all base system consumers of the legacy formatted 460 entries were converted to use the new format by default when the new, 461 machine independent format have been added and supported since FreeBSD 462 5.x. 463 464 Please see the pwd_mkdb(8) manual page for further details. 465 46620150525: 467 Clang and llvm have been upgraded to 3.6.1 release. Please see the 468 20141231 entry below for information about prerequisites and upgrading, 469 if you are not already using 3.5.0 or higher. 470 47120150521: 472 TI platform code switched to using vendor DTS files and this update 473 may break existing systems running on Beaglebone, Beaglebone Black, 474 and Pandaboard: 475 476 - dtb files should be regenerated/reinstalled. Filenames are the 477 same but content is different now 478 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 479 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 480 addressing scheme is now pin 25 on /dev/gpioc3. 481 - Pandaboard: /etc/ttys should be updated, serial console device is 482 now /dev/ttyu2, not /dev/ttyu0 483 48420150501: 485 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 486 If you need the GNU extension from groff soelim(1), install groff 487 from package: pkg install groff, or via ports: textproc/groff. 488 48920150423: 490 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 491 defined in symlink(7); previously symlinks were silently ignored. 492 49320150415: 494 The const qualifier has been removed from iconv(3) to comply with 495 POSIX. The ports tree is aware of this from r384038 onwards. 496 49720150416: 498 Libraries specified by LIBADD in Makefiles must have a corresponding 499 DPADD_<lib> variable to ensure correct dependencies. This is now 500 enforced in src.libnames.mk. 501 50220150324: 503 From legacy ata(4) driver was removed support for SATA controllers 504 supported by more functional drivers ahci(4), siis(4) and mvs(4). 505 Kernel modules ataahci and ataadaptec were removed completely, 506 replaced by ahci and mvs modules respectively. 507 50820150315: 509 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 510 the 20141231 entry below for information about prerequisites and 511 upgrading, if you are not already using 3.5.0 or higher. 512 51320150307: 514 The 32-bit PowerPC kernel has been changed to a position-independent 515 executable. This can only be booted with a version of loader(8) 516 newer than January 31, 2015, so make sure to update both world and 517 kernel before rebooting. 518 51920150217: 520 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 521 but before r278950, the RNG was not seeded properly. Immediately 522 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 523 ssh keys or openssl keys) that were generated w/ a kernel from that 524 range. This does not affect programs that directly used /dev/random 525 or /dev/urandom. All userland uses of arc4random(3) are affected. 526 52720150210: 528 The autofs(4) ABI was changed in order to restore binary compatibility 529 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 530 with the new kernel. 531 53220150131: 533 The powerpc64 kernel has been changed to a position-independent 534 executable. This can only be booted with a new version of loader(8), 535 so make sure to update both world and kernel before rebooting. 536 53720150118: 538 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 539 only release, no new features have been added. Please see the 20141231 540 entry below for information about prerequisites and upgrading, if you 541 are not already using 3.5.0. 542 54320150107: 544 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 545 taken from the ELF Tool Chain project rather than GNU binutils. They 546 should be drop-in replacements, with the addition of arm64 support. 547 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 548 binutils tools, if necessary. See 20150805 for updated information. 549 55020150105: 551 The default Unbound configuration now enables remote control 552 using a local socket. Users who have already enabled the 553 local_unbound service should regenerate their configuration 554 by running "service local_unbound setup" as root. 555 55620150102: 557 The GNU texinfo and GNU info pages have been removed. 558 To be able to view GNU info pages please install texinfo from ports. 559 56020141231: 561 Clang, llvm and lldb have been upgraded to 3.5.0 release. 562 563 As of this release, a prerequisite for building clang, llvm and lldb is 564 a C++11 capable compiler and C++11 standard library. This means that to 565 be able to successfully build the cross-tools stage of buildworld, with 566 clang as the bootstrap compiler, your system compiler or cross compiler 567 should either be clang 3.3 or later, or gcc 4.8 or later, and your 568 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 569 later. 570 571 On any standard FreeBSD 10.x or 11.x installation, where clang and 572 libc++ are on by default (that is, on x86 or arm), this should work out 573 of the box. 574 575 On 9.x installations where clang is enabled by default, e.g. on x86 and 576 powerpc, libc++ will not be enabled by default, so libc++ should be 577 built (with clang) and installed first. If both clang and libc++ are 578 missing, build clang first, then use it to build libc++. 579 580 On 8.x and earlier installations, upgrade to 9.x first, and then follow 581 the instructions for 9.x above. 582 583 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 584 default, and do not build clang. 585 586 Many embedded systems are resource constrained, and will not be able to 587 build clang in a reasonable time, or in some cases at all. In those 588 cases, cross building bootable systems on amd64 is a workaround. 589 590 This new version of clang introduces a number of new warnings, of which 591 the following are most likely to appear: 592 593 -Wabsolute-value 594 595 This warns in two cases, for both C and C++: 596 * When the code is trying to take the absolute value of an unsigned 597 quantity, which is effectively a no-op, and almost never what was 598 intended. The code should be fixed, if at all possible. If you are 599 sure that the unsigned quantity can be safely cast to signed, without 600 loss of information or undefined behavior, you can add an explicit 601 cast, or disable the warning. 602 603 * When the code is trying to take an absolute value, but the called 604 abs() variant is for the wrong type, which can lead to truncation. 605 If you want to disable the warning instead of fixing the code, please 606 make sure that truncation will not occur, or it might lead to unwanted 607 side-effects. 608 609 -Wtautological-undefined-compare and 610 -Wundefined-bool-conversion 611 612 These warn when C++ code is trying to compare 'this' against NULL, while 613 'this' should never be NULL in well-defined C++ code. However, there is 614 some legacy (pre C++11) code out there, which actively abuses this 615 feature, which was less strictly defined in previous C++ versions. 616 617 Squid and openjdk do this, for example. The warning can be turned off 618 for C++98 and earlier, but compiling the code in C++11 mode might result 619 in unexpected behavior; for example, the parts of the program that are 620 unreachable could be optimized away. 621 62220141222: 623 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 624 kernel sources have been removed. The .h files remain, since some 625 utilities include them. This will need to be fixed later. 626 If "mount -t oldnfs ..." is attempted, it will fail. 627 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 628 the utilities will report errors. 629 63020141121: 631 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 632 directories to top level SUBDIR variable when their parent 633 directory is included in LOCAL_DIRS. Users with build systems with 634 such hierarchies and without SUBDIR entries in the parent 635 directory Makefiles should add them or add the directories to 636 LOCAL_DIRS. 637 63820141109: 639 faith(4) and faithd(8) have been removed from the base system. Faith 640 has been obsolete for a very long time. 641 64220141104: 643 vt(4), the new console driver, is enabled by default. It brings 644 support for Unicode and double-width characters, as well as 645 support for UEFI and integration with the KMS kernel video 646 drivers. 647 648 You may need to update your console settings in /etc/rc.conf, 649 most probably the keymap. During boot, /etc/rc.d/syscons will 650 indicate what you need to do. 651 652 vt(4) still has issues and lacks some features compared to 653 syscons(4). See the wiki for up-to-date information: 654 https://wiki.freebsd.org/Newcons 655 656 If you want to keep using syscons(4), you can do so by adding 657 the following line to /boot/loader.conf: 658 kern.vty=sc 659 66020141102: 661 pjdfstest has been integrated into kyua as an opt-in test suite. 662 Please see share/doc/pjdfstest/README for more details on how to 663 execute it. 664 66520141009: 666 gperf has been removed from the base system for architectures 667 that use clang. Ports that require gperf will obtain it from the 668 devel/gperf port. 669 67020140923: 671 pjdfstest has been moved from tools/regression/pjdfstest to 672 contrib/pjdfstest . 673 67420140922: 675 At svn r271982, The default linux compat kernel ABI has been adjusted 676 to 2.6.18 in support of the linux-c6 compat ports infrastructure 677 update. If you wish to continue using the linux-f10 compat ports, 678 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 679 encouraged to update their linux-compat packages to linux-c6 during 680 their next update cycle. 681 68220140729: 683 The ofwfb driver, used to provide a graphics console on PowerPC when 684 using vt(4), no longer allows mmap() of all physical memory. This 685 will prevent Xorg on PowerPC with some ATI graphics cards from 686 initializing properly unless x11-servers/xorg-server is updated to 687 1.12.4_8 or newer. 688 68920140723: 690 The xdev targets have been converted to using TARGET and 691 TARGET_ARCH instead of XDEV and XDEV_ARCH. 692 69320140719: 694 The default unbound configuration has been modified to address 695 issues with reverse lookups on networks that use private 696 address ranges. If you use the local_unbound service, run 697 "service local_unbound setup" as root to regenerate your 698 configuration, then "service local_unbound reload" to load the 699 new configuration. 700 70120140709: 702 The GNU texinfo and GNU info pages are not built and installed 703 anymore, WITH_INFO knob has been added to allow to built and install 704 them again. 705 UPDATE: see 20150102 entry on texinfo's removal 706 70720140708: 708 The GNU readline library is now an INTERNALLIB - that is, it is 709 statically linked into consumers (GDB and variants) in the base 710 system, and the shared library is no longer installed. The 711 devel/readline port is available for third party software that 712 requires readline. 713 71420140702: 715 The Itanium architecture (ia64) has been removed from the list of 716 known architectures. This is the first step in the removal of the 717 architecture. 718 71920140701: 720 Commit r268115 has added NFSv4.1 server support, merged from 721 projects/nfsv4.1-server. Since this includes changes to the 722 internal interfaces between the NFS related modules, a full 723 build of the kernel and modules will be necessary. 724 __FreeBSD_version has been bumped. 725 72620140629: 727 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 728 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 729 which differs from the behaviour controlled by this knob.) 730 73120140619: 732 Maximal length of the serial number in CTL was increased from 16 to 733 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 734 and ctld, need to be rebuilt to work with a new kernel. 735 73620140606: 737 The libatf-c and libatf-c++ major versions were downgraded to 0 and 738 1 respectively to match the upstream numbers. They were out of 739 sync because, when they were originally added to FreeBSD, the 740 upstream versions were not respected. These libraries are private 741 and not yet built by default, so renumbering them should be a 742 non-issue. However, unclean source trees will yield broken test 743 programs once the operator executes "make delete-old-libs" after a 744 "make installworld". 745 746 Additionally, the atf-sh binary was made private by moving it into 747 /usr/libexec/. Already-built shell test programs will keep the 748 path to the old binary so they will break after "make delete-old" 749 is run. 750 751 If you are using WITH_TESTS=yes (not the default), wipe the object 752 tree and rebuild from scratch to prevent spurious test failures. 753 This is only needed once: the misnumbered libraries and misplaced 754 binaries have been added to OptionalObsoleteFiles.inc so they will 755 be removed during a clean upgrade. 756 75720140512: 758 Clang and llvm have been upgraded to 3.4.1 release. 759 76020140508: 761 We bogusly installed src.opts.mk in /usr/share/mk. This file should 762 be removed to avoid issues in the future (and has been added to 763 ObsoleteFiles.inc). 764 76520140505: 766 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 767 past, it affected all builds that used the bsd.*.mk files. The old 768 behavior was a bug, but people may have relied upon it. To get this 769 behavior back, you can .include /etc/src.conf from /etc/make.conf 770 (which is still global and isn't changed). This also changes the 771 behavior of incremental builds inside the tree of individual 772 directories. Set MAKESYSPATH to ".../share/mk" to do that. 773 Although this has survived make universe and some upgrade scenarios, 774 other upgrade scenarios may have broken. At least one form of 775 temporary breakage was fixed with MAKESYSPATH settings for buildworld 776 as well... In cases where MAKESYSPATH isn't working with this 777 setting, you'll need to set it to the full path to your tree. 778 779 One side effect of all this cleaning up is that bsd.compiler.mk 780 is no longer implicitly included by bsd.own.mk. If you wish to 781 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 782 as well. 783 78420140430: 785 The lindev device has been removed since /dev/full has been made a 786 standard device. __FreeBSD_version has been bumped. 787 78820140424: 789 The knob WITHOUT_VI was added to the base system, which controls 790 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 791 in order to reorder files share/termcap and didn't build ex(1) as a 792 build tool, so building/installing with WITH_VI is highly advised for 793 build hosts for older releases. 794 795 This issue has been fixed in stable/9 and stable/10 in r277022 and 796 r276991, respectively. 797 79820140418: 799 The YES_HESIOD knob has been removed. It has been obsolete for 800 a decade. Please move to using WITH_HESIOD instead or your builds 801 will silently lack HESIOD. 802 80320140405: 804 The uart(4) driver has been changed with respect to its handling 805 of the low-level console. Previously the uart(4) driver prevented 806 any process from changing the baudrate or the CLOCAL and HUPCL 807 control flags. By removing the restrictions, operators can make 808 changes to the serial console port without having to reboot. 809 However, when getty(8) is started on the serial device that is 810 associated with the low-level console, a misconfigured terminal 811 line in /etc/ttys will now have a real impact. 812 Before upgrading the kernel, make sure that /etc/ttys has the 813 serial console device configured as 3wire without baudrate to 814 preserve the previous behaviour. E.g: 815 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 816 81720140306: 818 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 819 to improve performance. To re-enable it, if needed, run rpcbind 820 with command line option -W. 821 82220140226: 823 Switched back to the GPL dtc compiler due to updates in the upstream 824 dts files not being supported by the BSDL dtc compiler. You will need 825 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 826 may result while building dtb files during a kernel build if you fail 827 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 828 82920140216: 830 Clang and llvm have been upgraded to 3.4 release. 831 83220140216: 833 The nve(4) driver has been removed. Please use the nfe(4) driver 834 for NVIDIA nForce MCP Ethernet adapters instead. 835 83620140212: 837 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 838 This could cause certain C++ applications using shared libraries built 839 against the previous version of libc++ to crash. The incompatibility 840 has now been fixed, but any C++ applications or shared libraries built 841 between r261283 and r261801 should be recompiled. 842 84320140204: 844 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 845 capability mode support. Please note that enabling the feature in 846 kernel is still highly recommended. 847 84820140131: 849 OpenSSH is now built with sandbox support, and will use sandbox as 850 the default privilege separation method. This requires Capsicum 851 capability mode support in kernel. 852 85320140128: 854 The libelf and libdwarf libraries have been updated to newer 855 versions from upstream. Shared library version numbers for 856 these two libraries were bumped. Any ports or binaries 857 requiring these two libraries should be recompiled. 858 __FreeBSD_version is bumped to 1100006. 859 86020140110: 861 If a Makefile in a tests/ directory was auto-generating a Kyuafile 862 instead of providing an explicit one, this would prevent such 863 Makefile from providing its own Kyuafile in the future during 864 NO_CLEAN builds. This has been fixed in the Makefiles but manual 865 intervention is needed to clean an objdir if you use NO_CLEAN: 866 # find /usr/obj -name Kyuafile | xargs rm -f 867 86820131213: 869 The behavior of gss_pseudo_random() for the krb5 mechanism 870 has changed, for applications requesting a longer random string 871 than produced by the underlying enctype's pseudo-random() function. 872 In particular, the random string produced from a session key of 873 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 874 be different at the 17th octet and later, after this change. 875 The counter used in the PRF+ construction is now encoded as a 876 big-endian integer in accordance with RFC 4402. 877 __FreeBSD_version is bumped to 1100004. 878 87920131108: 880 The WITHOUT_ATF build knob has been removed and its functionality 881 has been subsumed into the more generic WITHOUT_TESTS. If you were 882 using the former to disable the build of the ATF libraries, you 883 should change your settings to use the latter. 884 88520131025: 886 The default version of mtree is nmtree which is obtained from 887 NetBSD. The output is generally the same, but may vary 888 slightly. If you found you need identical output adding 889 "-F freebsd9" to the command line should do the trick. For the 890 time being, the old mtree is available as fmtree. 891 89220131014: 893 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 894 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 895 1.1.4_8 and verify bsdyml not linked in, before running "make 896 delete-old-libs": 897 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 898 or 899 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 900 90120131010: 902 The stable/10 branch has been created in subversion from head 903 revision r256279. 904 90520131010: 906 The rc.d/jail script has been updated to support jail(8) 907 configuration file. The "jail_<jname>_*" rc.conf(5) variables 908 for per-jail configuration are automatically converted to 909 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 910 This is transparently backward compatible. See below about some 911 incompatibilities and rc.conf(5) manual page for more details. 912 913 These variables are now deprecated in favor of jail(8) configuration 914 file. One can use "rc.d/jail config <jname>" command to generate 915 a jail(8) configuration file in /var/run/jail.<jname>.conf without 916 running the jail(8) utility. The default pathname of the 917 configuration file is /etc/jail.conf and can be specified by 918 using $jail_conf or $jail_<jname>_conf variables. 919 920 Please note that jail_devfs_ruleset accepts an integer at 921 this moment. Please consider to rewrite the ruleset name 922 with an integer. 923 92420130930: 925 BIND has been removed from the base system. If all you need 926 is a local resolver, simply enable and start the local_unbound 927 service instead. Otherwise, several versions of BIND are 928 available in the ports tree. The dns/bind99 port is one example. 929 930 With this change, nslookup(1) and dig(1) are no longer in the base 931 system. Users should instead use host(1) and drill(1) which are 932 in the base system. Alternatively, nslookup and dig can 933 be obtained by installing the dns/bind-tools port. 934 93520130916: 936 With the addition of unbound(8), a new unbound user is now 937 required during installworld. "mergemaster -p" can be used to 938 add the user prior to installworld, as documented in the handbook. 939 94020130911: 941 OpenSSH is now built with DNSSEC support, and will by default 942 silently trust signed SSHFP records. This can be controlled with 943 the VerifyHostKeyDNS client configuration setting. DNSSEC support 944 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 945 94620130906: 947 The GNU Compiler Collection and C++ standard library (libstdc++) 948 are no longer built by default on platforms where clang is the system 949 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 950 options in src.conf. 951 95220130905: 953 The PROCDESC kernel option is now part of the GENERIC kernel 954 configuration and is required for the rwhod(8) to work. 955 If you are using custom kernel configuration, you should include 956 'options PROCDESC'. 957 95820130905: 959 The API and ABI related to the Capsicum framework was modified 960 in backward incompatible way. The userland libraries and programs 961 have to be recompiled to work with the new kernel. This includes the 962 following libraries and programs, but the whole buildworld is 963 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 964 kdump, procstat, rwho, rwhod, uniq. 965 96620130903: 967 AES-NI intrinsic support has been added to gcc. The AES-NI module 968 has been updated to use this support. A new gcc is required to build 969 the aesni module on both i386 and amd64. 970 97120130821: 972 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 973 Thus "device padlock_rng" and "device rdrand_rng" should be 974 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 975 97620130813: 977 WITH_ICONV has been split into two feature sets. WITH_ICONV now 978 enables just the iconv* functionality and is now on by default. 979 WITH_LIBICONV_COMPAT enables the libiconv api and link time 980 compatibility. Set WITHOUT_ICONV to build the old way. 981 If you have been using WITH_ICONV before, you will very likely 982 need to turn on WITH_LIBICONV_COMPAT. 983 98420130806: 985 INVARIANTS option now enables DEBUG for code with OpenSolaris and 986 Illumos origin, including ZFS. If you have INVARIANTS in your 987 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 988 explicitly. 989 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 990 locks if WITNESS option was set. Because that generated a lot of 991 witness(9) reports and all of them were believed to be false 992 positives, this is no longer done. New option OPENSOLARIS_WITNESS 993 can be used to achieve the previous behavior. 994 99520130806: 996 Timer values in IPv6 data structures now use time_uptime instead 997 of time_second. Although this is not a user-visible functional 998 change, userland utilities which directly use them---ndp(8), 999 rtadvd(8), and rtsold(8) in the base system---need to be updated 1000 to r253970 or later. 1001 100220130802: 1003 find -delete can now delete the pathnames given as arguments, 1004 instead of only files found below them or if the pathname did 1005 not contain any slashes. Formerly, the following error message 1006 would result: 1007 1008 find: -delete: <path>: relative path potentially not safe 1009 1010 Deleting the pathnames given as arguments can be prevented 1011 without error messages using -mindepth 1 or by changing 1012 directory and passing "." as argument to find. This works in the 1013 old as well as the new version of find. 1014 101520130726: 1016 Behavior of devfs rules path matching has been changed. 1017 Pattern is now always matched against fully qualified devfs 1018 path and slash characters must be explicitly matched by 1019 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1020 subdirectories must be reviewed. 1021 102220130716: 1023 The default ARM ABI has changed to the ARM EABI. The old ABI is 1024 incompatible with the ARM EABI and all programs and modules will 1025 need to be rebuilt to work with a new kernel. 1026 1027 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1028 1029 NOTE: Support for the old ABI will be removed in the future and 1030 users are advised to upgrade. 1031 103220130709: 1033 pkg_install has been disconnected from the build if you really need it 1034 you should add WITH_PKGTOOLS in your src.conf(5). 1035 103620130709: 1037 Most of network statistics structures were changed to be able 1038 keep 64-bits counters. Thus all tools, that work with networking 1039 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1040 104120130618: 1042 Fix a bug that allowed a tracing process (e.g. gdb) to write 1043 to a memory-mapped file in the traced process's address space 1044 even if neither the traced process nor the tracing process had 1045 write access to that file. 1046 104720130615: 1048 CVS has been removed from the base system. An exact copy 1049 of the code is available from the devel/cvs port. 1050 105120130613: 1052 Some people report the following error after the switch to bmake: 1053 1054 make: illegal option -- J 1055 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1056 ... 1057 *** [buildworld] Error code 2 1058 1059 this likely due to an old instance of make in 1060 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1061 which src/Makefile will use that blindly, if it exists, so if 1062 you see the above error: 1063 1064 rm -rf `make -V MAKEPATH` 1065 1066 should resolve it. 1067 106820130516: 1069 Use bmake by default. 1070 Whereas before one could choose to build with bmake via 1071 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1072 make. The goal is to remove these knobs for 10-RELEASE. 1073 1074 It is worth noting that bmake (like gmake) treats the command 1075 line as the unit of failure, rather than statements within the 1076 command line. Thus '(cd some/where && dosomething)' is safer 1077 than 'cd some/where; dosomething'. The '()' allows consistent 1078 behavior in parallel build. 1079 108020130429: 1081 Fix a bug that allows NFS clients to issue READDIR on files. 1082 108320130426: 1084 The WITHOUT_IDEA option has been removed because 1085 the IDEA patent expired. 1086 108720130426: 1088 The sysctl which controls TRIM support under ZFS has been renamed 1089 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1090 enabled by default. 1091 109220130425: 1093 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1094 rather than creating it's own in the temporary directory in 1095 order allow access to bootstrapped versions of tools such as 1096 install and mtree. When upgrading from version of FreeBSD where 1097 the install command does not support -l, you will need to 1098 install a new mergemaster command if mergemaster -p is required. 1099 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1100 && make install). 1101 110220130404: 1103 Legacy ATA stack, disabled and replaced by new CAM-based one since 1104 FreeBSD 9.0, completely removed from the sources. Kernel modules 1105 atadisk and atapi*, user-level tools atacontrol and burncd are 1106 removed. Kernel option `options ATA_CAM` is now permanently enabled 1107 and removed. 1108 110920130319: 1110 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1111 and socketpair(2). Software, in particular Kerberos, may 1112 automatically detect and use these during building. The resulting 1113 binaries will not work on older kernels. 1114 111520130308: 1116 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1117 information, see the respective 20130304 entry). 1118 111920130304: 1120 Recent commits to callout(9) changed the size of struct callout, 1121 so the KBI is probably heavily disturbed. Also, some functions 1122 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1123 by macros. Every kernel module using it won't load, so rebuild 1124 is requested. 1125 1126 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1127 but does not initialize by default (because of the new CTL_DISABLE 1128 option) to save memory. To re-enable it, remove the CTL_DISABLE 1129 option from the kernel config file or set kern.cam.ctl.disable=0 1130 in /boot/loader.conf. 1131 113220130301: 1133 The ctl device has been disabled in GENERIC for i386 and amd64. 1134 This was done due to the extra memory being allocated at system 1135 initialisation time by the ctl driver which was only used if 1136 a CAM target device was created. This makes a FreeBSD system 1137 unusable on 128MB or less of RAM. 1138 113920130208: 1140 A new compression method (lz4) has been merged to -HEAD. Please 1141 refer to zpool-features(7) for more information. 1142 1143 Please refer to the "ZFS notes" section of this file for information 1144 on upgrading boot ZFS pools. 1145 114620130129: 1147 A BSD-licensed patch(1) variant has been added and is installed 1148 as bsdpatch, being the GNU version the default patch. 1149 To inverse the logic and use the BSD-licensed one as default, 1150 while having the GNU version installed as gnupatch, rebuild 1151 and install world with the WITH_BSD_PATCH knob set. 1152 115320130121: 1154 Due to the use of the new -l option to install(1) during build 1155 and install, you must take care not to directly set the INSTALL 1156 make variable in your /etc/make.conf, /etc/src.conf, or on the 1157 command line. If you wish to use the -C flag for all installs 1158 you may be able to add INSTALL+=-C to /etc/make.conf or 1159 /etc/src.conf. 1160 116120130118: 1162 The install(1) option -M has changed meaning and now takes an 1163 argument that is a file or path to append logs to. In the 1164 unlikely event that -M was the last option on the command line 1165 and the command line contained at least two files and a target 1166 directory the first file will have logs appended to it. The -M 1167 option served little practical purpose in the last decade so its 1168 use is expected to be extremely rare. 1169 117020121223: 1171 After switching to Clang as the default compiler some users of ZFS 1172 on i386 systems started to experience stack overflow kernel panics. 1173 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1174 117520121222: 1176 GEOM_LABEL now mangles label names read from file system metadata. 1177 Mangling affect labels containing spaces, non-printable characters, 1178 '%' or '"'. Device names in /etc/fstab and other places may need to 1179 be updated. 1180 118120121217: 1182 By default, only the 10 most recent kernel dumps will be saved. To 1183 restore the previous behaviour (no limit on the number of kernel dumps 1184 stored in the dump directory) add the following line to /etc/rc.conf: 1185 1186 savecore_flags="" 1187 118820121201: 1189 With the addition of auditdistd(8), a new auditdistd user is now 1190 required during installworld. "mergemaster -p" can be used to 1191 add the user prior to installworld, as documented in the handbook. 1192 119320121117: 1194 The sin6_scope_id member variable in struct sockaddr_in6 is now 1195 filled by the kernel before passing the structure to the userland via 1196 sysctl or routing socket. This means the KAME-specific embedded scope 1197 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1198 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1199 __FreeBSD_version is bumped to 1000025. 1200 120120121105: 1202 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1203 This means that the world and kernel will be compiled with clang 1204 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1205 and /usr/bin/cpp. To disable this behavior and revert to building 1206 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1207 of current may need to bootstrap WITHOUT_CLANG first if the clang 1208 build fails (its compatibility window doesn't extend to the 9 stable 1209 branch point). 1210 121120121102: 1212 The IPFIREWALL_FORWARD kernel option has been removed. Its 1213 functionality now turned on by default. 1214 121520121023: 1216 The ZERO_COPY_SOCKET kernel option has been removed and 1217 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1218 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1219 mechanism which is not safe and may result in kernel crashes. 1220 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1221 driver supports disposeable external page sized mbuf storage. 1222 Proper replacements for both zero-copy mechanisms are under 1223 consideration and will eventually lead to complete removal 1224 of the two kernel options. 1225 122620121023: 1227 The IPv4 network stack has been converted to network byte 1228 order. The following modules need to be recompiled together 1229 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1230 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1231 123220121022: 1233 Support for non-MPSAFE filesystems was removed from VFS. The 1234 VFS_VERSION was bumped, all filesystem modules shall be 1235 recompiled. 1236 123720121018: 1238 All the non-MPSAFE filesystems have been disconnected from 1239 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1240 portalfs, smbfs, xfs. 1241 124220121016: 1243 The interface cloning API and ABI has changed. The following 1244 modules need to be recompiled together with kernel: 1245 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1246 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1247 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1248 124920121015: 1250 The sdhci driver was split in two parts: sdhci (generic SD Host 1251 Controller logic) and sdhci_pci (actual hardware driver). 1252 No kernel config modifications are required, but if you 1253 load sdhc as a module you must switch to sdhci_pci instead. 1254 125520121014: 1256 Import the FUSE kernel and userland support into base system. 1257 125820121013: 1259 The GNU sort(1) program has been removed since the BSD-licensed 1260 sort(1) has been the default for quite some time and no serious 1261 problems have been reported. The corresponding WITH_GNU_SORT 1262 knob has also gone. 1263 126420121006: 1265 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1266 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1267 with new kernel. 1268 126920121001: 1270 The net80211(4) ABI has been changed to allow for improved driver 1271 PS-POLL and power-save support. All wireless drivers need to be 1272 recompiled to work with the new kernel. 1273 127420120913: 1275 The random(4) support for the VIA hardware random number 1276 generator (`PADLOCK') is no longer enabled unconditionally. 1277 Add the padlock_rng device in the custom kernel config if 1278 needed. The GENERIC kernels on i386 and amd64 do include the 1279 device, so the change only affects the custom kernel 1280 configurations. 1281 128220120908: 1283 The pf(4) packet filter ABI has been changed. pfctl(8) and 1284 snmp_pf module need to be recompiled to work with new kernel. 1285 128620120828: 1287 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1288 to -HEAD. Pools that have empty_bpobj in active state can not be 1289 imported read-write with ZFS implementations that do not support 1290 this feature. For more information read the zpool-features(5) 1291 manual page. 1292 129320120727: 1294 The sparc64 ZFS loader has been changed to no longer try to auto- 1295 detect ZFS providers based on diskN aliases but now requires these 1296 to be explicitly listed in the OFW boot-device environment variable. 1297 129820120712: 1299 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1300 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1301 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1302 130320120712: 1304 The following sysctls and tunables have been renamed for consistency 1305 with other variables: 1306 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1307 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1308 130920120628: 1310 The sort utility has been replaced with BSD sort. For now, GNU sort 1311 is also available as "gnusort" or the default can be set back to 1312 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1313 installed as "bsdsort". 1314 131520120611: 1316 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1317 Starting with this version the old system of ZFS pool versioning 1318 is superseded by "feature flags". This concept enables forward 1319 compatibility against certain future changes in functionality of ZFS 1320 pools. The first read-only compatible "feature flag" for ZFS pools 1321 is named "com.delphix:async_destroy". For more information 1322 read the new zpool-features(5) manual page. 1323 Please refer to the "ZFS notes" section of this file for information 1324 on upgrading boot ZFS pools. 1325 132620120417: 1327 The malloc(3) implementation embedded in libc now uses sources imported 1328 as contrib/jemalloc. The most disruptive API change is to 1329 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1330 delete it prior to installworld, and optionally re-create it using the 1331 new format after rebooting. See malloc.conf(5) for details 1332 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1333 NAMESPACE section). 1334 133520120328: 1336 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1337 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1338 now spelled mips. This is to aid compatibility with third-party 1339 software that expects this naming scheme in uname(3). Little-endian 1340 settings are unchanged. If you are updating a big-endian mips64 machine 1341 from before this change, you may need to set MACHINE_ARCH=mips64 in 1342 your environment before the new build system will recognize your machine. 1343 134420120306: 1345 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1346 platforms. 1347 134820120229: 1349 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1350 nullfs(5) did not pass through all behaviours to the underlying layer, 1351 as a result if we bound to a socket on the lower layer we could connect 1352 only to the lower path; if we bound to the upper layer we could connect 1353 only to the upper path. The new behavior is one can connect to both the 1354 lower and the upper paths regardless what layer path one binds to. 1355 135620120211: 1357 The getifaddrs upgrade path broken with 20111215 has been restored. 1358 If you have upgraded in between 20111215 and 20120209 you need to 1359 recompile libc again with your kernel. You still need to recompile 1360 world to be able to configure CARP but this restriction already 1361 comes from 20111215. 1362 136320120114: 1364 The set_rcvar() function has been removed from /etc/rc.subr. All 1365 base and ports rc.d scripts have been updated, so if you have a 1366 port installed with a script in /usr/local/etc/rc.d you can either 1367 hand-edit the rcvar= line, or reinstall the port. 1368 1369 An easy way to handle the mass-update of /etc/rc.d: 1370 rm /etc/rc.d/* && mergemaster -i 1371 137220120109: 1373 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1374 on the current CPU and prevents other threads from running. 1375 This behavior can be reverted using the kern.stop_scheduler_on_panic 1376 tunable/sysctl. 1377 The new behavior can be incompatible with kern.sync_on_panic. 1378 137920111215: 1380 The carp(4) facility has been changed significantly. Configuration 1381 of the CARP protocol via ifconfig(8) has changed, as well as format 1382 of CARP events submitted to devd(8) has changed. See manual pages 1383 for more information. The arpbalance feature of carp(4) is currently 1384 not supported anymore. 1385 1386 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1387 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1388 need to be recompiled. 1389 139020111122: 1391 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1392 /dev/wmistat0. 1393 139420111108: 1395 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1396 explicitely support non-MPSAFE filesystems. 1397 It is on by default for all supported platform at this present 1398 time. 1399 140020111101: 1401 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1402 i386 and pc98 GENERIC kernel configuration files. 1403 140420110930: 1405 sysinstall has been removed 1406 140720110923: 1408 The stable/9 branch created in subversion. This corresponds to the 1409 RELENG_9 branch in CVS. 1410 1411COMMON ITEMS: 1412 1413 General Notes 1414 ------------- 1415 Avoid using make -j when upgrading. While generally safe, there are 1416 sometimes problems using -j to upgrade. If your upgrade fails with 1417 -j, please try again without -j. From time to time in the past there 1418 have been problems using -j with buildworld and/or installworld. This 1419 is especially true when upgrading between "distant" versions (eg one 1420 that cross a major release boundary or several minor releases, or when 1421 several months have passed on the -current branch). 1422 1423 Sometimes, obscure build problems are the result of environment 1424 poisoning. This can happen because the make utility reads its 1425 environment when searching for values for global variables. To run 1426 your build attempts in an "environmental clean room", prefix all make 1427 commands with 'env -i '. See the env(1) manual page for more details. 1428 1429 When upgrading from one major version to another it is generally best 1430 to upgrade to the latest code in the currently installed branch first, 1431 then do an upgrade to the new branch. This is the best-tested upgrade 1432 path, and has the highest probability of being successful. Please try 1433 this approach before reporting problems with a major version upgrade. 1434 1435 When upgrading a live system, having a root shell around before 1436 installing anything can help undo problems. Not having a root shell 1437 around can lead to problems if pam has changed too much from your 1438 starting point to allow continued authentication after the upgrade. 1439 1440 This file should be read as a log of events. When a later event changes 1441 information of a prior event, the prior event should not be deleted. 1442 Instead, a pointer to the entry with the new information should be 1443 placed in the old entry. Readers of this file should also sanity check 1444 older entries before relying on them blindly. Authors of new entries 1445 should write them with this in mind. 1446 1447 ZFS notes 1448 --------- 1449 When upgrading the boot ZFS pool to a new version, always follow 1450 these two steps: 1451 1452 1.) recompile and reinstall the ZFS boot loader and boot block 1453 (this is part of "make buildworld" and "make installworld") 1454 1455 2.) update the ZFS boot block on your boot drive 1456 1457 The following example updates the ZFS boot block on the first 1458 partition (freebsd-boot) of a GPT partitioned drive ada0: 1459 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1460 1461 Non-boot pools do not need these updates. 1462 1463 To build a kernel 1464 ----------------- 1465 If you are updating from a prior version of FreeBSD (even one just 1466 a few days old), you should follow this procedure. It is the most 1467 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1468 1469 make kernel-toolchain 1470 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1471 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1472 1473 To test a kernel once 1474 --------------------- 1475 If you just want to boot a kernel once (because you are not sure 1476 if it works, or if you want to boot a known bad kernel to provide 1477 debugging information) run 1478 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1479 nextboot -k testkernel 1480 1481 To just build a kernel when you know that it won't mess you up 1482 -------------------------------------------------------------- 1483 This assumes you are already running a CURRENT system. Replace 1484 ${arch} with the architecture of your machine (e.g. "i386", 1485 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1486 1487 cd src/sys/${arch}/conf 1488 config KERNEL_NAME_HERE 1489 cd ../compile/KERNEL_NAME_HERE 1490 make depend 1491 make 1492 make install 1493 1494 If this fails, go to the "To build a kernel" section. 1495 1496 To rebuild everything and install it on the current system. 1497 ----------------------------------------------------------- 1498 # Note: sometimes if you are running current you gotta do more than 1499 # is listed here if you are upgrading from a really old current. 1500 1501 <make sure you have good level 0 dumps> 1502 make buildworld 1503 make kernel KERNCONF=YOUR_KERNEL_HERE 1504 [1] 1505 <reboot in single user> [3] 1506 mergemaster -Fp [5] 1507 make installworld 1508 mergemaster -Fi [4] 1509 make delete-old [6] 1510 <reboot> 1511 1512 To cross-install current onto a separate partition 1513 -------------------------------------------------- 1514 # In this approach we use a separate partition to hold 1515 # current's root, 'usr', and 'var' directories. A partition 1516 # holding "/", "/usr" and "/var" should be about 2GB in 1517 # size. 1518 1519 <make sure you have good level 0 dumps> 1520 <boot into -stable> 1521 make buildworld 1522 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1523 <maybe newfs current's root partition> 1524 <mount current's root partition on directory ${CURRENT_ROOT}> 1525 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1526 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1527 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1528 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1529 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1530 <reboot into current> 1531 <do a "native" rebuild/install as described in the previous section> 1532 <maybe install compatibility libraries from ports/misc/compat*> 1533 <reboot> 1534 1535 1536 To upgrade in-place from stable to current 1537 ---------------------------------------------- 1538 <make sure you have good level 0 dumps> 1539 make buildworld [9] 1540 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1541 [1] 1542 <reboot in single user> [3] 1543 mergemaster -Fp [5] 1544 make installworld 1545 mergemaster -Fi [4] 1546 make delete-old [6] 1547 <reboot> 1548 1549 Make sure that you've read the UPDATING file to understand the 1550 tweaks to various things you need. At this point in the life 1551 cycle of current, things change often and you are on your own 1552 to cope. The defaults can also change, so please read ALL of 1553 the UPDATING entries. 1554 1555 Also, if you are tracking -current, you must be subscribed to 1556 freebsd-current@freebsd.org. Make sure that before you update 1557 your sources that you have read and understood all the recent 1558 messages there. If in doubt, please track -stable which has 1559 much fewer pitfalls. 1560 1561 [1] If you have third party modules, such as vmware, you 1562 should disable them at this point so they don't crash your 1563 system on reboot. 1564 1565 [3] From the bootblocks, boot -s, and then do 1566 fsck -p 1567 mount -u / 1568 mount -a 1569 cd src 1570 adjkerntz -i # if CMOS is wall time 1571 Also, when doing a major release upgrade, it is required that 1572 you boot into single user mode to do the installworld. 1573 1574 [4] Note: This step is non-optional. Failure to do this step 1575 can result in a significant reduction in the functionality of the 1576 system. Attempting to do it by hand is not recommended and those 1577 that pursue this avenue should read this file carefully, as well 1578 as the archives of freebsd-current and freebsd-hackers mailing lists 1579 for potential gotchas. The -U option is also useful to consider. 1580 See mergemaster(8) for more information. 1581 1582 [5] Usually this step is a noop. However, from time to time 1583 you may need to do this if you get unknown user in the following 1584 step. It never hurts to do it all the time. You may need to 1585 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1586 install) after the buildworld before this step if you last updated 1587 from current before 20130425 or from -stable before 20130430. 1588 1589 [6] This only deletes old files and directories. Old libraries 1590 can be deleted by "make delete-old-libs", but you have to make 1591 sure that no program is using those libraries anymore. 1592 1593 [8] In order to have a kernel that can run the 4.x binaries needed to 1594 do an installworld, you must include the COMPAT_FREEBSD4 option in 1595 your kernel. Failure to do so may leave you with a system that is 1596 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1597 required to run the 5.x binaries on more recent kernels. And so on 1598 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1599 1600 Make sure that you merge any new devices from GENERIC since the 1601 last time you updated your kernel config file. 1602 1603 [9] When checking out sources, you must include the -P flag to have 1604 cvs prune empty directories. 1605 1606 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1607 "?=" instead of the "=" assignment operator, so that buildworld can 1608 override the CPUTYPE if it needs to. 1609 1610 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1611 not on the command line, or in /etc/make.conf. buildworld will 1612 warn if it is improperly defined. 1613FORMAT: 1614 1615This file contains a list, in reverse chronological order, of major 1616breakages in tracking -current. It is not guaranteed to be a complete 1617list of such breakages, and only contains entries since September 23, 2011. 1618If you need to see UPDATING entries from before that date, you will need 1619to fetch an UPDATING file from an older FreeBSD release. 1620 1621Copyright information: 1622 1623Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1624 1625Redistribution, publication, translation and use, with or without 1626modification, in full or in part, in any form or format of this 1627document are permitted without further permission from the author. 1628 1629THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1630IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1631WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1632DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1633INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1634(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1635SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1636HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1637STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1638IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1639POSSIBILITY OF SUCH DAMAGE. 1640 1641Contact Warner Losh if you have any questions about your use of 1642this document. 1643 1644$FreeBSD: stable/11/UPDATING 315515 2017-03-18 22:19:23Z ae $ 1645