UPDATING revision 315846
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 1920170323: 20 The code that provides support for ZFS .zfs/ directory functionality 21 has been reimplemented. It's not possible now to create a snapshot 22 by mkdir under .zfs/snapshot/. That should be the only user visible 23 change. 24 2520170319: 26 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT 27 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of 28 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed, 29 and now NAT-T is supported by default. Security associations now use 30 the single namespace for SPI allocation, so if you use several manually 31 configured security associations with the same SPI, this configuration 32 needs modification. 33 3420161217: 35 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1. 36 Please see the 20141231 entry below for information about prerequisites 37 and upgrading, if you are not already using clang 3.5.0 or higher. 38 3920161124: 40 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0. 41 Please see the 20141231 entry below for information about prerequisites 42 and upgrading, if you are not already using clang 3.5.0 or higher. 43 4420161119: 45 The layout of the pmap structure has changed for powerpc to put the pmap 46 statistics at the front for all CPU variations. libkvm(3) and all tools 47 that link against it need to be recompiled. 48 4920161030: 50 isl(4) and cyapa(4) drivers now require a new driver, 51 chromebook_platform(4), to work properly on Chromebook-class hardware. 52 On other types of hardware the drivers may need to be configured using 53 device hints. Please see the corresponding manual pages for details. 54 5520161210: 56 Relocatable object files with the extension of .So have been renamed 57 to use an extension of .pico instead. The purpose of this change is 58 to avoid a name clash with shared libraries on case-insensitive file 59 systems. On those file systems, foo.So is the same file as foo.so. 60 6120160622: 62 The libc stub for the pipe(2) system call has been replaced with 63 a wrapper that calls the pipe2(2) system call and the pipe(2) 64 system call is now only implemented by the kernels that include 65 "options COMPAT_FREEBSD10" in their config file (this is the 66 default). Users should ensure that this option is enabled in 67 their kernel or upgrade userspace to r302092 before upgrading their 68 kernel. 69 7020160527: 71 CAM will now strip leading spaces from SCSI disks' serial numbers. 72 This will effect users who create UFS filesystems on SCSI disks using 73 those disk's diskid device nodes. For example, if /etc/fstab 74 previously contained a line like 75 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 76 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 77 transforms like gmirror may also be affected. ZFS users should 78 generally be fine. 79 8020160523: 81 The bitstring(3) API has been updated with new functionality and 82 improved performance. But it is binary-incompatible with the old API. 83 Objects built with the new headers may not be linked against objects 84 built with the old headers. 85 8620160520: 87 The brk and sbrk functions have been removed from libc on arm64. 88 Binutils from ports has been updated to not link to these 89 functions and should be updated to the latest version before 90 installing a new libc. 91 9220160517: 93 The armv6 port now defaults to hard float ABI. Limited support 94 for running both hardfloat and soft float on the same system 95 is available using the libraries installed with -DWITH_LIBSOFT. 96 This has only been tested as an upgrade path for installworld 97 and packages may fail or need manual intervention to run. New 98 packages will be needed. 99 100 To update an existing self-hosted armv6hf system, you must add 101 TARGET_ARCH=armv6 on the make command line for both the build 102 and the install steps. 103 10420160510: 105 Kernel modules compiled outside of a kernel build now default to 106 installing to /boot/modules instead of /boot/kernel. Many kernel 107 modules built this way (such as those in ports) already overrode 108 KMODDIR explicitly to install into /boot/modules. However, 109 manually building and installing a module from /sys/modules will 110 now install to /boot/modules instead of /boot/kernel. 111 11220160414: 113 The CAM I/O scheduler has been committed to the kernel. There should be 114 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 115 list of known rogues that claim support for this but actually corrupt 116 data is believed to be complete, be on the lookout for data 117 corruption. The known rogue list is believed to be complete: 118 119 o Crucial MX100, M550 drives with MU01 firmware. 120 o Micron M510 and M550 drives with MU01 firmware. 121 o Micron M500 prior to MU07 firmware 122 o Samsung 830, 840, and 850 all firmwares 123 o FCCT M500 all firmwares 124 125 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 126 with working NCQ TRIM. For Micron branded drives, see your sales rep for 127 updated firmware. Black listed drives will work correctly because these 128 drives work correctly so long as no NCQ TRIMs are sent to them. Given 129 this list is the same as found in Linux, it's believed there are no 130 other rogues in the market place. All other models from the above 131 vendors work. 132 133 To be safe, if you are at all concerned, you can quirk each of your 134 drives to prevent NCQ from being sent by setting: 135 kern.cam.ada.X.quirks="0x2" 136 in loader.conf. If the drive requires the 4k sector quirk, set the 137 quirks entry to 0x3. 138 13920160330: 140 The FAST_DEPEND build option has been removed and its functionality is 141 now the one true way. The old mkdep(1) style of 'make depend' has 142 been removed. See 20160311 for further details. 143 14420160317: 145 Resource range types have grown from unsigned long to uintmax_t. All 146 drivers, and anything using libdevinfo, need to be recompiled. 147 14820160311: 149 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 150 builds. It no longer runs mkdep(1) during 'make depend', and the 151 'make depend' stage can safely be skipped now as it is auto ran 152 when building 'make all' and will generate all SRCS and DPSRCS before 153 building anything else. Dependencies are gathered at compile time with 154 -MF flags kept in separate .depend files per object file. Users should 155 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 156 stale .depend files. 157 15820160306: 159 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 160 kernel modules. Therefore, if you load any kernel modules at boot time, 161 please install the boot loaders after you install the kernel, but before 162 rebooting, e.g.: 163 164 make buildworld 165 make kernel KERNCONF=YOUR_KERNEL_HERE 166 make -C sys/boot install 167 <reboot in single user> 168 169 Then follow the usual steps, described in the General Notes section, 170 below. 171 17220160305: 173 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 174 see the 20141231 entry below for information about prerequisites and 175 upgrading, if you are not already using clang 3.5.0 or higher. 176 17720160301: 178 The AIO subsystem is now a standard part of the kernel. The 179 VFS_AIO kernel option and aio.ko kernel module have been removed. 180 Due to stability concerns, asynchronous I/O requests are only 181 permitted on sockets and raw disks by default. To enable 182 asynchronous I/O requests on all file types, set the 183 vfs.aio.enable_unsafe sysctl to a non-zero value. 184 18520160226: 186 The ELF object manipulation tool objcopy is now provided by the 187 ELF Tool Chain project rather than by GNU binutils. It should be a 188 drop-in replacement, with the addition of arm64 support. The 189 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 190 to obtain the GNU version if necessary. 191 19220160129: 193 Building ZFS pools on top of zvols is prohibited by default. That 194 feature has never worked safely; it's always been prone to deadlocks. 195 Using a zvol as the backing store for a VM guest's virtual disk will 196 still work, even if the guest is using ZFS. Legacy behavior can be 197 restored by setting vfs.zfs.vol.recursive=1. 198 19920160119: 200 The NONE and HPN patches has been removed from OpenSSH. They are 201 still available in the security/openssh-portable port. 202 20320160113: 204 With the addition of ypldap(8), a new _ypldap user is now required 205 during installworld. "mergemaster -p" can be used to add the user 206 prior to installworld, as documented in the handbook. 207 20820151216: 209 The tftp loader (pxeboot) now uses the option root-path directive. As a 210 consequence it no longer looks for a pxeboot.4th file on the tftp 211 server. Instead it uses the regular /boot infrastructure as with the 212 other loaders. 213 21420151211: 215 The code to start recording plug and play data into the modules has 216 been committed. While the old tools will properly build a new kernel, 217 a number of warnings about "unknown metadata record 4" will be produced 218 for an older kldxref. To avoid such warnings, make sure to rebuild 219 the kernel toolchain (or world). Make sure that you have r292078 or 220 later when trying to build 292077 or later before rebuilding. 221 22220151207: 223 Debug data files are now built by default with 'make buildworld' and 224 installed with 'make installworld'. This facilitates debugging but 225 requires more disk space both during the build and for the installed 226 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 227 in src.conf(5). 228 22920151130: 230 r291527 changed the internal interface between the nfsd.ko and 231 nfscommon.ko modules. As such, they must both be upgraded to-gether. 232 __FreeBSD_version has been bumped because of this. 233 23420151108: 235 Add support for unicode collation strings leads to a change of 236 order of files listed by ls(1) for example. To get back to the old 237 behaviour, set LC_COLLATE environment variable to "C". 238 239 Databases administrators will need to reindex their databases given 240 collation results will be different. 241 242 Due to a bug in install(1) it is recommended to remove the ancient 243 locales before running make installworld. 244 245 rm -rf /usr/share/locale/* 246 24720151030: 248 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 249 libcrypto.so.7 or libssl.so.7 must be recompiled. 250 25120151020: 252 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 253 Kernel modules isp_2400_multi and isp_2500_multi were removed and 254 should be replaced with isp_2400 and isp_2500 modules respectively. 255 25620151017: 257 The build previously allowed using 'make -n' to not recurse into 258 sub-directories while showing what commands would be executed, and 259 'make -n -n' to recursively show commands. Now 'make -n' will recurse 260 and 'make -N' will not. 261 26220151012: 263 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 264 and etcupdate will now use this file. A custom sendmail.cf is now 265 updated via this mechanism rather than via installworld. If you had 266 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 267 want to remove the exclusion or change it to "always install". 268 /etc/mail/sendmail.cf is now managed the same way regardless of 269 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 270 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 271 27220151011: 273 Compatibility shims for legacy ATA device names have been removed. 274 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 275 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 276 environment variables, /dev/ad* and /dev/ar* symbolic links. 277 27820151006: 279 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 280 Please see the 20141231 entry below for information about prerequisites 281 and upgrading, if you are not already using clang 3.5.0 or higher. 282 28320150924: 284 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 285 and renamed from .symbols to .debug. This reduces the size requirements 286 on the boot partition or file system and provides consistency with 287 userland debug files. 288 289 When using the supported kernel installation method the 290 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 291 as is done with /boot/kernel. 292 293 Developers wishing to maintain the historical behavior of installing 294 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 295 29620150827: 297 The wireless drivers had undergone changes that remove the 'parent 298 interface' from the ifconfig -l output. The rc.d network scripts 299 used to check presence of a parent interface in the list, so old 300 scripts would fail to start wireless networking. Thus, etcupdate(3) 301 or mergemaster(8) run is required after kernel update, to update your 302 rc.d scripts in /etc. 303 30420150827: 305 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 306 These configurations are now automatically interpreted as 307 'scrub fragment reassemble'. 308 30920150817: 310 Kernel-loadable modules for the random(4) device are back. To use 311 them, the kernel must have 312 313 device random 314 options RANDOM_LOADABLE 315 316 kldload(8) can then be used to load random_fortuna.ko 317 or random_yarrow.ko. Please note that due to the indirect 318 function calls that the loadable modules need to provide, 319 the build-in variants will be slightly more efficient. 320 321 The random(4) kernel option RANDOM_DUMMY has been retired due to 322 unpopularity. It was not all that useful anyway. 323 32420150813: 325 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 326 Control over building the ELF Tool Chain tools is now provided by 327 the WITHOUT_TOOLCHAIN knob. 328 32920150810: 330 The polarity of Pulse Per Second (PPS) capture events with the 331 uart(4) driver has been corrected. Prior to this change the PPS 332 "assert" event corresponded to the trailing edge of a positive PPS 333 pulse and the "clear" event was the leading edge of the next pulse. 334 335 As the width of a PPS pulse in a typical GPS receiver is on the 336 order of 1 millisecond, most users will not notice any significant 337 difference with this change. 338 339 Anyone who has compensated for the historical polarity reversal by 340 configuring a negative offset equal to the pulse width will need to 341 remove that workaround. 342 34320150809: 344 The default group assigned to /dev/dri entries has been changed 345 from 'wheel' to 'video' with the id of '44'. If you want to have 346 access to the dri devices please add yourself to the video group 347 with: 348 349 # pw groupmod video -m $USER 350 35120150806: 352 The menu.rc and loader.rc files will now be replaced during 353 upgrades. Please migrate local changes to menu.rc.local and 354 loader.rc.local instead. 355 35620150805: 357 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 358 strings and strip have been removed. The src.conf(5) knob 359 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 360 36120150728: 362 As ZFS requires more kernel stack pages than is the default on some 363 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 364 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 365 366 Please consider using 'options KSTACK_PAGES=X' where X is greater 367 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 368 36920150706: 370 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 371 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 372 default, i.e., they will not contain "::". For example, instead 373 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 374 to have a more specific match, such as different map entries for 375 IPv6:0:0 vs IPv6:0. This change requires that configuration 376 data (including maps, files, classes, custom ruleset, etc.) must 377 use the same format, so make certain such configuration data is 378 upgrading. As a very simple check search for patterns like 379 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 380 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 381 the cf option UseCompressedIPv6Addresses. 382 38320150630: 384 The default kernel entropy-processing algorithm is now 385 Fortuna, replacing Yarrow. 386 387 Assuming you have 'device random' in your kernel config 388 file, the configurations allow a kernel option to override 389 this default. You may choose *ONE* of: 390 391 options RANDOM_YARROW # Legacy /dev/random algorithm. 392 options RANDOM_DUMMY # Blocking-only driver. 393 394 If you have neither, you get Fortuna. For most people, 395 read no further, Fortuna will give a /dev/random that works 396 like it always used to, and the difference will be irrelevant. 397 398 If you remove 'device random', you get *NO* kernel-processed 399 entropy at all. This may be acceptable to folks building 400 embedded systems, but has complications. Carry on reading, 401 and it is assumed you know what you need. 402 403 *PLEASE* read random(4) and random(9) if you are in the 404 habit of tweaking kernel configs, and/or if you are a member 405 of the embedded community, wanting specific and not-usual 406 behaviour from your security subsystems. 407 408 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 409 random', you will NOT have a functioning /dev/random, and 410 many cryptographic features will not work, including SSH. 411 You may also find strange behaviour from the random(3) set 412 of library functions, in particular sranddev(3), srandomdev(3) 413 and arc4random(3). The reason for this is that the KERN_ARND 414 sysctl only returns entropy if it thinks it has some to 415 share, and with RANDOM_DUMMY or no 'device random' this 416 will never happen. 417 41820150623: 419 An additional fix for the issue described in the 20150614 sendmail 420 entry below has been been committed in revision 284717. 421 42220150616: 423 FreeBSD's old make (fmake) has been removed from the system. It is 424 available as the devel/fmake port or via pkg install fmake. 425 42620150615: 427 The fix for the issue described in the 20150614 sendmail entry 428 below has been been committed in revision 284436. The work 429 around described in that entry is no longer needed unless the 430 default setting is overridden by a confDH_PARAMETERS configuration 431 setting of '5' or pointing to a 512 bit DH parameter file. 432 43320150614: 434 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 435 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 436 and devel/kyua to version 0.20+ and adjust any calling code to work 437 with Kyuafile and kyua. 438 43920150614: 440 The import of openssl to address the FreeBSD-SA-15:10.openssl 441 security advisory includes a change which rejects handshakes 442 with DH parameters below 768 bits. sendmail releases prior 443 to 8.15.2 (not yet released), defaulted to a 512 bit 444 DH parameter setting for client connections. To work around 445 this interoperability, sendmail can be configured to use a 446 2048 bit DH parameter by: 447 448 1. Edit /etc/mail/`hostname`.mc 449 2. If a setting for confDH_PARAMETERS does not exist or 450 exists and is set to a string beginning with '5', 451 replace it with '2'. 452 3. If a setting for confDH_PARAMETERS exists and is set to 453 a file path, create a new file with: 454 openssl dhparam -out /path/to/file 2048 455 4. Rebuild the .cf file: 456 cd /etc/mail/; make; make install 457 5. Restart sendmail: 458 cd /etc/mail/; make restart 459 460 A sendmail patch is coming, at which time this file will be 461 updated. 462 46320150604: 464 Generation of legacy formatted entries have been disabled by default 465 in pwd_mkdb(8), as all base system consumers of the legacy formatted 466 entries were converted to use the new format by default when the new, 467 machine independent format have been added and supported since FreeBSD 468 5.x. 469 470 Please see the pwd_mkdb(8) manual page for further details. 471 47220150525: 473 Clang and llvm have been upgraded to 3.6.1 release. Please see the 474 20141231 entry below for information about prerequisites and upgrading, 475 if you are not already using 3.5.0 or higher. 476 47720150521: 478 TI platform code switched to using vendor DTS files and this update 479 may break existing systems running on Beaglebone, Beaglebone Black, 480 and Pandaboard: 481 482 - dtb files should be regenerated/reinstalled. Filenames are the 483 same but content is different now 484 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 485 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 486 addressing scheme is now pin 25 on /dev/gpioc3. 487 - Pandaboard: /etc/ttys should be updated, serial console device is 488 now /dev/ttyu2, not /dev/ttyu0 489 49020150501: 491 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 492 If you need the GNU extension from groff soelim(1), install groff 493 from package: pkg install groff, or via ports: textproc/groff. 494 49520150423: 496 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 497 defined in symlink(7); previously symlinks were silently ignored. 498 49920150415: 500 The const qualifier has been removed from iconv(3) to comply with 501 POSIX. The ports tree is aware of this from r384038 onwards. 502 50320150416: 504 Libraries specified by LIBADD in Makefiles must have a corresponding 505 DPADD_<lib> variable to ensure correct dependencies. This is now 506 enforced in src.libnames.mk. 507 50820150324: 509 From legacy ata(4) driver was removed support for SATA controllers 510 supported by more functional drivers ahci(4), siis(4) and mvs(4). 511 Kernel modules ataahci and ataadaptec were removed completely, 512 replaced by ahci and mvs modules respectively. 513 51420150315: 515 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 516 the 20141231 entry below for information about prerequisites and 517 upgrading, if you are not already using 3.5.0 or higher. 518 51920150307: 520 The 32-bit PowerPC kernel has been changed to a position-independent 521 executable. This can only be booted with a version of loader(8) 522 newer than January 31, 2015, so make sure to update both world and 523 kernel before rebooting. 524 52520150217: 526 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 527 but before r278950, the RNG was not seeded properly. Immediately 528 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 529 ssh keys or openssl keys) that were generated w/ a kernel from that 530 range. This does not affect programs that directly used /dev/random 531 or /dev/urandom. All userland uses of arc4random(3) are affected. 532 53320150210: 534 The autofs(4) ABI was changed in order to restore binary compatibility 535 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 536 with the new kernel. 537 53820150131: 539 The powerpc64 kernel has been changed to a position-independent 540 executable. This can only be booted with a new version of loader(8), 541 so make sure to update both world and kernel before rebooting. 542 54320150118: 544 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 545 only release, no new features have been added. Please see the 20141231 546 entry below for information about prerequisites and upgrading, if you 547 are not already using 3.5.0. 548 54920150107: 550 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 551 taken from the ELF Tool Chain project rather than GNU binutils. They 552 should be drop-in replacements, with the addition of arm64 support. 553 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 554 binutils tools, if necessary. See 20150805 for updated information. 555 55620150105: 557 The default Unbound configuration now enables remote control 558 using a local socket. Users who have already enabled the 559 local_unbound service should regenerate their configuration 560 by running "service local_unbound setup" as root. 561 56220150102: 563 The GNU texinfo and GNU info pages have been removed. 564 To be able to view GNU info pages please install texinfo from ports. 565 56620141231: 567 Clang, llvm and lldb have been upgraded to 3.5.0 release. 568 569 As of this release, a prerequisite for building clang, llvm and lldb is 570 a C++11 capable compiler and C++11 standard library. This means that to 571 be able to successfully build the cross-tools stage of buildworld, with 572 clang as the bootstrap compiler, your system compiler or cross compiler 573 should either be clang 3.3 or later, or gcc 4.8 or later, and your 574 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 575 later. 576 577 On any standard FreeBSD 10.x or 11.x installation, where clang and 578 libc++ are on by default (that is, on x86 or arm), this should work out 579 of the box. 580 581 On 9.x installations where clang is enabled by default, e.g. on x86 and 582 powerpc, libc++ will not be enabled by default, so libc++ should be 583 built (with clang) and installed first. If both clang and libc++ are 584 missing, build clang first, then use it to build libc++. 585 586 On 8.x and earlier installations, upgrade to 9.x first, and then follow 587 the instructions for 9.x above. 588 589 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 590 default, and do not build clang. 591 592 Many embedded systems are resource constrained, and will not be able to 593 build clang in a reasonable time, or in some cases at all. In those 594 cases, cross building bootable systems on amd64 is a workaround. 595 596 This new version of clang introduces a number of new warnings, of which 597 the following are most likely to appear: 598 599 -Wabsolute-value 600 601 This warns in two cases, for both C and C++: 602 * When the code is trying to take the absolute value of an unsigned 603 quantity, which is effectively a no-op, and almost never what was 604 intended. The code should be fixed, if at all possible. If you are 605 sure that the unsigned quantity can be safely cast to signed, without 606 loss of information or undefined behavior, you can add an explicit 607 cast, or disable the warning. 608 609 * When the code is trying to take an absolute value, but the called 610 abs() variant is for the wrong type, which can lead to truncation. 611 If you want to disable the warning instead of fixing the code, please 612 make sure that truncation will not occur, or it might lead to unwanted 613 side-effects. 614 615 -Wtautological-undefined-compare and 616 -Wundefined-bool-conversion 617 618 These warn when C++ code is trying to compare 'this' against NULL, while 619 'this' should never be NULL in well-defined C++ code. However, there is 620 some legacy (pre C++11) code out there, which actively abuses this 621 feature, which was less strictly defined in previous C++ versions. 622 623 Squid and openjdk do this, for example. The warning can be turned off 624 for C++98 and earlier, but compiling the code in C++11 mode might result 625 in unexpected behavior; for example, the parts of the program that are 626 unreachable could be optimized away. 627 62820141222: 629 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 630 kernel sources have been removed. The .h files remain, since some 631 utilities include them. This will need to be fixed later. 632 If "mount -t oldnfs ..." is attempted, it will fail. 633 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 634 the utilities will report errors. 635 63620141121: 637 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 638 directories to top level SUBDIR variable when their parent 639 directory is included in LOCAL_DIRS. Users with build systems with 640 such hierarchies and without SUBDIR entries in the parent 641 directory Makefiles should add them or add the directories to 642 LOCAL_DIRS. 643 64420141109: 645 faith(4) and faithd(8) have been removed from the base system. Faith 646 has been obsolete for a very long time. 647 64820141104: 649 vt(4), the new console driver, is enabled by default. It brings 650 support for Unicode and double-width characters, as well as 651 support for UEFI and integration with the KMS kernel video 652 drivers. 653 654 You may need to update your console settings in /etc/rc.conf, 655 most probably the keymap. During boot, /etc/rc.d/syscons will 656 indicate what you need to do. 657 658 vt(4) still has issues and lacks some features compared to 659 syscons(4). See the wiki for up-to-date information: 660 https://wiki.freebsd.org/Newcons 661 662 If you want to keep using syscons(4), you can do so by adding 663 the following line to /boot/loader.conf: 664 kern.vty=sc 665 66620141102: 667 pjdfstest has been integrated into kyua as an opt-in test suite. 668 Please see share/doc/pjdfstest/README for more details on how to 669 execute it. 670 67120141009: 672 gperf has been removed from the base system for architectures 673 that use clang. Ports that require gperf will obtain it from the 674 devel/gperf port. 675 67620140923: 677 pjdfstest has been moved from tools/regression/pjdfstest to 678 contrib/pjdfstest . 679 68020140922: 681 At svn r271982, The default linux compat kernel ABI has been adjusted 682 to 2.6.18 in support of the linux-c6 compat ports infrastructure 683 update. If you wish to continue using the linux-f10 compat ports, 684 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 685 encouraged to update their linux-compat packages to linux-c6 during 686 their next update cycle. 687 68820140729: 689 The ofwfb driver, used to provide a graphics console on PowerPC when 690 using vt(4), no longer allows mmap() of all physical memory. This 691 will prevent Xorg on PowerPC with some ATI graphics cards from 692 initializing properly unless x11-servers/xorg-server is updated to 693 1.12.4_8 or newer. 694 69520140723: 696 The xdev targets have been converted to using TARGET and 697 TARGET_ARCH instead of XDEV and XDEV_ARCH. 698 69920140719: 700 The default unbound configuration has been modified to address 701 issues with reverse lookups on networks that use private 702 address ranges. If you use the local_unbound service, run 703 "service local_unbound setup" as root to regenerate your 704 configuration, then "service local_unbound reload" to load the 705 new configuration. 706 70720140709: 708 The GNU texinfo and GNU info pages are not built and installed 709 anymore, WITH_INFO knob has been added to allow to built and install 710 them again. 711 UPDATE: see 20150102 entry on texinfo's removal 712 71320140708: 714 The GNU readline library is now an INTERNALLIB - that is, it is 715 statically linked into consumers (GDB and variants) in the base 716 system, and the shared library is no longer installed. The 717 devel/readline port is available for third party software that 718 requires readline. 719 72020140702: 721 The Itanium architecture (ia64) has been removed from the list of 722 known architectures. This is the first step in the removal of the 723 architecture. 724 72520140701: 726 Commit r268115 has added NFSv4.1 server support, merged from 727 projects/nfsv4.1-server. Since this includes changes to the 728 internal interfaces between the NFS related modules, a full 729 build of the kernel and modules will be necessary. 730 __FreeBSD_version has been bumped. 731 73220140629: 733 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 734 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 735 which differs from the behaviour controlled by this knob.) 736 73720140619: 738 Maximal length of the serial number in CTL was increased from 16 to 739 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 740 and ctld, need to be rebuilt to work with a new kernel. 741 74220140606: 743 The libatf-c and libatf-c++ major versions were downgraded to 0 and 744 1 respectively to match the upstream numbers. They were out of 745 sync because, when they were originally added to FreeBSD, the 746 upstream versions were not respected. These libraries are private 747 and not yet built by default, so renumbering them should be a 748 non-issue. However, unclean source trees will yield broken test 749 programs once the operator executes "make delete-old-libs" after a 750 "make installworld". 751 752 Additionally, the atf-sh binary was made private by moving it into 753 /usr/libexec/. Already-built shell test programs will keep the 754 path to the old binary so they will break after "make delete-old" 755 is run. 756 757 If you are using WITH_TESTS=yes (not the default), wipe the object 758 tree and rebuild from scratch to prevent spurious test failures. 759 This is only needed once: the misnumbered libraries and misplaced 760 binaries have been added to OptionalObsoleteFiles.inc so they will 761 be removed during a clean upgrade. 762 76320140512: 764 Clang and llvm have been upgraded to 3.4.1 release. 765 76620140508: 767 We bogusly installed src.opts.mk in /usr/share/mk. This file should 768 be removed to avoid issues in the future (and has been added to 769 ObsoleteFiles.inc). 770 77120140505: 772 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 773 past, it affected all builds that used the bsd.*.mk files. The old 774 behavior was a bug, but people may have relied upon it. To get this 775 behavior back, you can .include /etc/src.conf from /etc/make.conf 776 (which is still global and isn't changed). This also changes the 777 behavior of incremental builds inside the tree of individual 778 directories. Set MAKESYSPATH to ".../share/mk" to do that. 779 Although this has survived make universe and some upgrade scenarios, 780 other upgrade scenarios may have broken. At least one form of 781 temporary breakage was fixed with MAKESYSPATH settings for buildworld 782 as well... In cases where MAKESYSPATH isn't working with this 783 setting, you'll need to set it to the full path to your tree. 784 785 One side effect of all this cleaning up is that bsd.compiler.mk 786 is no longer implicitly included by bsd.own.mk. If you wish to 787 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 788 as well. 789 79020140430: 791 The lindev device has been removed since /dev/full has been made a 792 standard device. __FreeBSD_version has been bumped. 793 79420140424: 795 The knob WITHOUT_VI was added to the base system, which controls 796 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 797 in order to reorder files share/termcap and didn't build ex(1) as a 798 build tool, so building/installing with WITH_VI is highly advised for 799 build hosts for older releases. 800 801 This issue has been fixed in stable/9 and stable/10 in r277022 and 802 r276991, respectively. 803 80420140418: 805 The YES_HESIOD knob has been removed. It has been obsolete for 806 a decade. Please move to using WITH_HESIOD instead or your builds 807 will silently lack HESIOD. 808 80920140405: 810 The uart(4) driver has been changed with respect to its handling 811 of the low-level console. Previously the uart(4) driver prevented 812 any process from changing the baudrate or the CLOCAL and HUPCL 813 control flags. By removing the restrictions, operators can make 814 changes to the serial console port without having to reboot. 815 However, when getty(8) is started on the serial device that is 816 associated with the low-level console, a misconfigured terminal 817 line in /etc/ttys will now have a real impact. 818 Before upgrading the kernel, make sure that /etc/ttys has the 819 serial console device configured as 3wire without baudrate to 820 preserve the previous behaviour. E.g: 821 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 822 82320140306: 824 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 825 to improve performance. To re-enable it, if needed, run rpcbind 826 with command line option -W. 827 82820140226: 829 Switched back to the GPL dtc compiler due to updates in the upstream 830 dts files not being supported by the BSDL dtc compiler. You will need 831 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 832 may result while building dtb files during a kernel build if you fail 833 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 834 83520140216: 836 Clang and llvm have been upgraded to 3.4 release. 837 83820140216: 839 The nve(4) driver has been removed. Please use the nfe(4) driver 840 for NVIDIA nForce MCP Ethernet adapters instead. 841 84220140212: 843 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 844 This could cause certain C++ applications using shared libraries built 845 against the previous version of libc++ to crash. The incompatibility 846 has now been fixed, but any C++ applications or shared libraries built 847 between r261283 and r261801 should be recompiled. 848 84920140204: 850 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 851 capability mode support. Please note that enabling the feature in 852 kernel is still highly recommended. 853 85420140131: 855 OpenSSH is now built with sandbox support, and will use sandbox as 856 the default privilege separation method. This requires Capsicum 857 capability mode support in kernel. 858 85920140128: 860 The libelf and libdwarf libraries have been updated to newer 861 versions from upstream. Shared library version numbers for 862 these two libraries were bumped. Any ports or binaries 863 requiring these two libraries should be recompiled. 864 __FreeBSD_version is bumped to 1100006. 865 86620140110: 867 If a Makefile in a tests/ directory was auto-generating a Kyuafile 868 instead of providing an explicit one, this would prevent such 869 Makefile from providing its own Kyuafile in the future during 870 NO_CLEAN builds. This has been fixed in the Makefiles but manual 871 intervention is needed to clean an objdir if you use NO_CLEAN: 872 # find /usr/obj -name Kyuafile | xargs rm -f 873 87420131213: 875 The behavior of gss_pseudo_random() for the krb5 mechanism 876 has changed, for applications requesting a longer random string 877 than produced by the underlying enctype's pseudo-random() function. 878 In particular, the random string produced from a session key of 879 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 880 be different at the 17th octet and later, after this change. 881 The counter used in the PRF+ construction is now encoded as a 882 big-endian integer in accordance with RFC 4402. 883 __FreeBSD_version is bumped to 1100004. 884 88520131108: 886 The WITHOUT_ATF build knob has been removed and its functionality 887 has been subsumed into the more generic WITHOUT_TESTS. If you were 888 using the former to disable the build of the ATF libraries, you 889 should change your settings to use the latter. 890 89120131025: 892 The default version of mtree is nmtree which is obtained from 893 NetBSD. The output is generally the same, but may vary 894 slightly. If you found you need identical output adding 895 "-F freebsd9" to the command line should do the trick. For the 896 time being, the old mtree is available as fmtree. 897 89820131014: 899 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 900 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 901 1.1.4_8 and verify bsdyml not linked in, before running "make 902 delete-old-libs": 903 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 904 or 905 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 906 90720131010: 908 The stable/10 branch has been created in subversion from head 909 revision r256279. 910 91120131010: 912 The rc.d/jail script has been updated to support jail(8) 913 configuration file. The "jail_<jname>_*" rc.conf(5) variables 914 for per-jail configuration are automatically converted to 915 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 916 This is transparently backward compatible. See below about some 917 incompatibilities and rc.conf(5) manual page for more details. 918 919 These variables are now deprecated in favor of jail(8) configuration 920 file. One can use "rc.d/jail config <jname>" command to generate 921 a jail(8) configuration file in /var/run/jail.<jname>.conf without 922 running the jail(8) utility. The default pathname of the 923 configuration file is /etc/jail.conf and can be specified by 924 using $jail_conf or $jail_<jname>_conf variables. 925 926 Please note that jail_devfs_ruleset accepts an integer at 927 this moment. Please consider to rewrite the ruleset name 928 with an integer. 929 93020130930: 931 BIND has been removed from the base system. If all you need 932 is a local resolver, simply enable and start the local_unbound 933 service instead. Otherwise, several versions of BIND are 934 available in the ports tree. The dns/bind99 port is one example. 935 936 With this change, nslookup(1) and dig(1) are no longer in the base 937 system. Users should instead use host(1) and drill(1) which are 938 in the base system. Alternatively, nslookup and dig can 939 be obtained by installing the dns/bind-tools port. 940 94120130916: 942 With the addition of unbound(8), a new unbound user is now 943 required during installworld. "mergemaster -p" can be used to 944 add the user prior to installworld, as documented in the handbook. 945 94620130911: 947 OpenSSH is now built with DNSSEC support, and will by default 948 silently trust signed SSHFP records. This can be controlled with 949 the VerifyHostKeyDNS client configuration setting. DNSSEC support 950 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 951 95220130906: 953 The GNU Compiler Collection and C++ standard library (libstdc++) 954 are no longer built by default on platforms where clang is the system 955 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 956 options in src.conf. 957 95820130905: 959 The PROCDESC kernel option is now part of the GENERIC kernel 960 configuration and is required for the rwhod(8) to work. 961 If you are using custom kernel configuration, you should include 962 'options PROCDESC'. 963 96420130905: 965 The API and ABI related to the Capsicum framework was modified 966 in backward incompatible way. The userland libraries and programs 967 have to be recompiled to work with the new kernel. This includes the 968 following libraries and programs, but the whole buildworld is 969 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 970 kdump, procstat, rwho, rwhod, uniq. 971 97220130903: 973 AES-NI intrinsic support has been added to gcc. The AES-NI module 974 has been updated to use this support. A new gcc is required to build 975 the aesni module on both i386 and amd64. 976 97720130821: 978 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 979 Thus "device padlock_rng" and "device rdrand_rng" should be 980 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 981 98220130813: 983 WITH_ICONV has been split into two feature sets. WITH_ICONV now 984 enables just the iconv* functionality and is now on by default. 985 WITH_LIBICONV_COMPAT enables the libiconv api and link time 986 compatibility. Set WITHOUT_ICONV to build the old way. 987 If you have been using WITH_ICONV before, you will very likely 988 need to turn on WITH_LIBICONV_COMPAT. 989 99020130806: 991 INVARIANTS option now enables DEBUG for code with OpenSolaris and 992 Illumos origin, including ZFS. If you have INVARIANTS in your 993 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 994 explicitly. 995 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 996 locks if WITNESS option was set. Because that generated a lot of 997 witness(9) reports and all of them were believed to be false 998 positives, this is no longer done. New option OPENSOLARIS_WITNESS 999 can be used to achieve the previous behavior. 1000 100120130806: 1002 Timer values in IPv6 data structures now use time_uptime instead 1003 of time_second. Although this is not a user-visible functional 1004 change, userland utilities which directly use them---ndp(8), 1005 rtadvd(8), and rtsold(8) in the base system---need to be updated 1006 to r253970 or later. 1007 100820130802: 1009 find -delete can now delete the pathnames given as arguments, 1010 instead of only files found below them or if the pathname did 1011 not contain any slashes. Formerly, the following error message 1012 would result: 1013 1014 find: -delete: <path>: relative path potentially not safe 1015 1016 Deleting the pathnames given as arguments can be prevented 1017 without error messages using -mindepth 1 or by changing 1018 directory and passing "." as argument to find. This works in the 1019 old as well as the new version of find. 1020 102120130726: 1022 Behavior of devfs rules path matching has been changed. 1023 Pattern is now always matched against fully qualified devfs 1024 path and slash characters must be explicitly matched by 1025 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1026 subdirectories must be reviewed. 1027 102820130716: 1029 The default ARM ABI has changed to the ARM EABI. The old ABI is 1030 incompatible with the ARM EABI and all programs and modules will 1031 need to be rebuilt to work with a new kernel. 1032 1033 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1034 1035 NOTE: Support for the old ABI will be removed in the future and 1036 users are advised to upgrade. 1037 103820130709: 1039 pkg_install has been disconnected from the build if you really need it 1040 you should add WITH_PKGTOOLS in your src.conf(5). 1041 104220130709: 1043 Most of network statistics structures were changed to be able 1044 keep 64-bits counters. Thus all tools, that work with networking 1045 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1046 104720130618: 1048 Fix a bug that allowed a tracing process (e.g. gdb) to write 1049 to a memory-mapped file in the traced process's address space 1050 even if neither the traced process nor the tracing process had 1051 write access to that file. 1052 105320130615: 1054 CVS has been removed from the base system. An exact copy 1055 of the code is available from the devel/cvs port. 1056 105720130613: 1058 Some people report the following error after the switch to bmake: 1059 1060 make: illegal option -- J 1061 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1062 ... 1063 *** [buildworld] Error code 2 1064 1065 this likely due to an old instance of make in 1066 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1067 which src/Makefile will use that blindly, if it exists, so if 1068 you see the above error: 1069 1070 rm -rf `make -V MAKEPATH` 1071 1072 should resolve it. 1073 107420130516: 1075 Use bmake by default. 1076 Whereas before one could choose to build with bmake via 1077 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1078 make. The goal is to remove these knobs for 10-RELEASE. 1079 1080 It is worth noting that bmake (like gmake) treats the command 1081 line as the unit of failure, rather than statements within the 1082 command line. Thus '(cd some/where && dosomething)' is safer 1083 than 'cd some/where; dosomething'. The '()' allows consistent 1084 behavior in parallel build. 1085 108620130429: 1087 Fix a bug that allows NFS clients to issue READDIR on files. 1088 108920130426: 1090 The WITHOUT_IDEA option has been removed because 1091 the IDEA patent expired. 1092 109320130426: 1094 The sysctl which controls TRIM support under ZFS has been renamed 1095 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1096 enabled by default. 1097 109820130425: 1099 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1100 rather than creating it's own in the temporary directory in 1101 order allow access to bootstrapped versions of tools such as 1102 install and mtree. When upgrading from version of FreeBSD where 1103 the install command does not support -l, you will need to 1104 install a new mergemaster command if mergemaster -p is required. 1105 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1106 && make install). 1107 110820130404: 1109 Legacy ATA stack, disabled and replaced by new CAM-based one since 1110 FreeBSD 9.0, completely removed from the sources. Kernel modules 1111 atadisk and atapi*, user-level tools atacontrol and burncd are 1112 removed. Kernel option `options ATA_CAM` is now permanently enabled 1113 and removed. 1114 111520130319: 1116 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1117 and socketpair(2). Software, in particular Kerberos, may 1118 automatically detect and use these during building. The resulting 1119 binaries will not work on older kernels. 1120 112120130308: 1122 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1123 information, see the respective 20130304 entry). 1124 112520130304: 1126 Recent commits to callout(9) changed the size of struct callout, 1127 so the KBI is probably heavily disturbed. Also, some functions 1128 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1129 by macros. Every kernel module using it won't load, so rebuild 1130 is requested. 1131 1132 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1133 but does not initialize by default (because of the new CTL_DISABLE 1134 option) to save memory. To re-enable it, remove the CTL_DISABLE 1135 option from the kernel config file or set kern.cam.ctl.disable=0 1136 in /boot/loader.conf. 1137 113820130301: 1139 The ctl device has been disabled in GENERIC for i386 and amd64. 1140 This was done due to the extra memory being allocated at system 1141 initialisation time by the ctl driver which was only used if 1142 a CAM target device was created. This makes a FreeBSD system 1143 unusable on 128MB or less of RAM. 1144 114520130208: 1146 A new compression method (lz4) has been merged to -HEAD. Please 1147 refer to zpool-features(7) for more information. 1148 1149 Please refer to the "ZFS notes" section of this file for information 1150 on upgrading boot ZFS pools. 1151 115220130129: 1153 A BSD-licensed patch(1) variant has been added and is installed 1154 as bsdpatch, being the GNU version the default patch. 1155 To inverse the logic and use the BSD-licensed one as default, 1156 while having the GNU version installed as gnupatch, rebuild 1157 and install world with the WITH_BSD_PATCH knob set. 1158 115920130121: 1160 Due to the use of the new -l option to install(1) during build 1161 and install, you must take care not to directly set the INSTALL 1162 make variable in your /etc/make.conf, /etc/src.conf, or on the 1163 command line. If you wish to use the -C flag for all installs 1164 you may be able to add INSTALL+=-C to /etc/make.conf or 1165 /etc/src.conf. 1166 116720130118: 1168 The install(1) option -M has changed meaning and now takes an 1169 argument that is a file or path to append logs to. In the 1170 unlikely event that -M was the last option on the command line 1171 and the command line contained at least two files and a target 1172 directory the first file will have logs appended to it. The -M 1173 option served little practical purpose in the last decade so its 1174 use is expected to be extremely rare. 1175 117620121223: 1177 After switching to Clang as the default compiler some users of ZFS 1178 on i386 systems started to experience stack overflow kernel panics. 1179 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1180 118120121222: 1182 GEOM_LABEL now mangles label names read from file system metadata. 1183 Mangling affect labels containing spaces, non-printable characters, 1184 '%' or '"'. Device names in /etc/fstab and other places may need to 1185 be updated. 1186 118720121217: 1188 By default, only the 10 most recent kernel dumps will be saved. To 1189 restore the previous behaviour (no limit on the number of kernel dumps 1190 stored in the dump directory) add the following line to /etc/rc.conf: 1191 1192 savecore_flags="" 1193 119420121201: 1195 With the addition of auditdistd(8), a new auditdistd user is now 1196 required during installworld. "mergemaster -p" can be used to 1197 add the user prior to installworld, as documented in the handbook. 1198 119920121117: 1200 The sin6_scope_id member variable in struct sockaddr_in6 is now 1201 filled by the kernel before passing the structure to the userland via 1202 sysctl or routing socket. This means the KAME-specific embedded scope 1203 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1204 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1205 __FreeBSD_version is bumped to 1000025. 1206 120720121105: 1208 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1209 This means that the world and kernel will be compiled with clang 1210 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1211 and /usr/bin/cpp. To disable this behavior and revert to building 1212 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1213 of current may need to bootstrap WITHOUT_CLANG first if the clang 1214 build fails (its compatibility window doesn't extend to the 9 stable 1215 branch point). 1216 121720121102: 1218 The IPFIREWALL_FORWARD kernel option has been removed. Its 1219 functionality now turned on by default. 1220 122120121023: 1222 The ZERO_COPY_SOCKET kernel option has been removed and 1223 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1224 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1225 mechanism which is not safe and may result in kernel crashes. 1226 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1227 driver supports disposeable external page sized mbuf storage. 1228 Proper replacements for both zero-copy mechanisms are under 1229 consideration and will eventually lead to complete removal 1230 of the two kernel options. 1231 123220121023: 1233 The IPv4 network stack has been converted to network byte 1234 order. The following modules need to be recompiled together 1235 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1236 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1237 123820121022: 1239 Support for non-MPSAFE filesystems was removed from VFS. The 1240 VFS_VERSION was bumped, all filesystem modules shall be 1241 recompiled. 1242 124320121018: 1244 All the non-MPSAFE filesystems have been disconnected from 1245 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1246 portalfs, smbfs, xfs. 1247 124820121016: 1249 The interface cloning API and ABI has changed. The following 1250 modules need to be recompiled together with kernel: 1251 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1252 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1253 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1254 125520121015: 1256 The sdhci driver was split in two parts: sdhci (generic SD Host 1257 Controller logic) and sdhci_pci (actual hardware driver). 1258 No kernel config modifications are required, but if you 1259 load sdhc as a module you must switch to sdhci_pci instead. 1260 126120121014: 1262 Import the FUSE kernel and userland support into base system. 1263 126420121013: 1265 The GNU sort(1) program has been removed since the BSD-licensed 1266 sort(1) has been the default for quite some time and no serious 1267 problems have been reported. The corresponding WITH_GNU_SORT 1268 knob has also gone. 1269 127020121006: 1271 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1272 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1273 with new kernel. 1274 127520121001: 1276 The net80211(4) ABI has been changed to allow for improved driver 1277 PS-POLL and power-save support. All wireless drivers need to be 1278 recompiled to work with the new kernel. 1279 128020120913: 1281 The random(4) support for the VIA hardware random number 1282 generator (`PADLOCK') is no longer enabled unconditionally. 1283 Add the padlock_rng device in the custom kernel config if 1284 needed. The GENERIC kernels on i386 and amd64 do include the 1285 device, so the change only affects the custom kernel 1286 configurations. 1287 128820120908: 1289 The pf(4) packet filter ABI has been changed. pfctl(8) and 1290 snmp_pf module need to be recompiled to work with new kernel. 1291 129220120828: 1293 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1294 to -HEAD. Pools that have empty_bpobj in active state can not be 1295 imported read-write with ZFS implementations that do not support 1296 this feature. For more information read the zpool-features(5) 1297 manual page. 1298 129920120727: 1300 The sparc64 ZFS loader has been changed to no longer try to auto- 1301 detect ZFS providers based on diskN aliases but now requires these 1302 to be explicitly listed in the OFW boot-device environment variable. 1303 130420120712: 1305 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1306 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1307 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1308 130920120712: 1310 The following sysctls and tunables have been renamed for consistency 1311 with other variables: 1312 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1313 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1314 131520120628: 1316 The sort utility has been replaced with BSD sort. For now, GNU sort 1317 is also available as "gnusort" or the default can be set back to 1318 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1319 installed as "bsdsort". 1320 132120120611: 1322 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1323 Starting with this version the old system of ZFS pool versioning 1324 is superseded by "feature flags". This concept enables forward 1325 compatibility against certain future changes in functionality of ZFS 1326 pools. The first read-only compatible "feature flag" for ZFS pools 1327 is named "com.delphix:async_destroy". For more information 1328 read the new zpool-features(5) manual page. 1329 Please refer to the "ZFS notes" section of this file for information 1330 on upgrading boot ZFS pools. 1331 133220120417: 1333 The malloc(3) implementation embedded in libc now uses sources imported 1334 as contrib/jemalloc. The most disruptive API change is to 1335 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1336 delete it prior to installworld, and optionally re-create it using the 1337 new format after rebooting. See malloc.conf(5) for details 1338 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1339 NAMESPACE section). 1340 134120120328: 1342 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1343 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1344 now spelled mips. This is to aid compatibility with third-party 1345 software that expects this naming scheme in uname(3). Little-endian 1346 settings are unchanged. If you are updating a big-endian mips64 machine 1347 from before this change, you may need to set MACHINE_ARCH=mips64 in 1348 your environment before the new build system will recognize your machine. 1349 135020120306: 1351 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1352 platforms. 1353 135420120229: 1355 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1356 nullfs(5) did not pass through all behaviours to the underlying layer, 1357 as a result if we bound to a socket on the lower layer we could connect 1358 only to the lower path; if we bound to the upper layer we could connect 1359 only to the upper path. The new behavior is one can connect to both the 1360 lower and the upper paths regardless what layer path one binds to. 1361 136220120211: 1363 The getifaddrs upgrade path broken with 20111215 has been restored. 1364 If you have upgraded in between 20111215 and 20120209 you need to 1365 recompile libc again with your kernel. You still need to recompile 1366 world to be able to configure CARP but this restriction already 1367 comes from 20111215. 1368 136920120114: 1370 The set_rcvar() function has been removed from /etc/rc.subr. All 1371 base and ports rc.d scripts have been updated, so if you have a 1372 port installed with a script in /usr/local/etc/rc.d you can either 1373 hand-edit the rcvar= line, or reinstall the port. 1374 1375 An easy way to handle the mass-update of /etc/rc.d: 1376 rm /etc/rc.d/* && mergemaster -i 1377 137820120109: 1379 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1380 on the current CPU and prevents other threads from running. 1381 This behavior can be reverted using the kern.stop_scheduler_on_panic 1382 tunable/sysctl. 1383 The new behavior can be incompatible with kern.sync_on_panic. 1384 138520111215: 1386 The carp(4) facility has been changed significantly. Configuration 1387 of the CARP protocol via ifconfig(8) has changed, as well as format 1388 of CARP events submitted to devd(8) has changed. See manual pages 1389 for more information. The arpbalance feature of carp(4) is currently 1390 not supported anymore. 1391 1392 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1393 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1394 need to be recompiled. 1395 139620111122: 1397 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1398 /dev/wmistat0. 1399 140020111108: 1401 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1402 explicitely support non-MPSAFE filesystems. 1403 It is on by default for all supported platform at this present 1404 time. 1405 140620111101: 1407 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1408 i386 and pc98 GENERIC kernel configuration files. 1409 141020110930: 1411 sysinstall has been removed 1412 141320110923: 1414 The stable/9 branch created in subversion. This corresponds to the 1415 RELENG_9 branch in CVS. 1416 1417COMMON ITEMS: 1418 1419 General Notes 1420 ------------- 1421 Avoid using make -j when upgrading. While generally safe, there are 1422 sometimes problems using -j to upgrade. If your upgrade fails with 1423 -j, please try again without -j. From time to time in the past there 1424 have been problems using -j with buildworld and/or installworld. This 1425 is especially true when upgrading between "distant" versions (eg one 1426 that cross a major release boundary or several minor releases, or when 1427 several months have passed on the -current branch). 1428 1429 Sometimes, obscure build problems are the result of environment 1430 poisoning. This can happen because the make utility reads its 1431 environment when searching for values for global variables. To run 1432 your build attempts in an "environmental clean room", prefix all make 1433 commands with 'env -i '. See the env(1) manual page for more details. 1434 1435 When upgrading from one major version to another it is generally best 1436 to upgrade to the latest code in the currently installed branch first, 1437 then do an upgrade to the new branch. This is the best-tested upgrade 1438 path, and has the highest probability of being successful. Please try 1439 this approach before reporting problems with a major version upgrade. 1440 1441 When upgrading a live system, having a root shell around before 1442 installing anything can help undo problems. Not having a root shell 1443 around can lead to problems if pam has changed too much from your 1444 starting point to allow continued authentication after the upgrade. 1445 1446 This file should be read as a log of events. When a later event changes 1447 information of a prior event, the prior event should not be deleted. 1448 Instead, a pointer to the entry with the new information should be 1449 placed in the old entry. Readers of this file should also sanity check 1450 older entries before relying on them blindly. Authors of new entries 1451 should write them with this in mind. 1452 1453 ZFS notes 1454 --------- 1455 When upgrading the boot ZFS pool to a new version, always follow 1456 these two steps: 1457 1458 1.) recompile and reinstall the ZFS boot loader and boot block 1459 (this is part of "make buildworld" and "make installworld") 1460 1461 2.) update the ZFS boot block on your boot drive 1462 1463 The following example updates the ZFS boot block on the first 1464 partition (freebsd-boot) of a GPT partitioned drive ada0: 1465 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1466 1467 Non-boot pools do not need these updates. 1468 1469 To build a kernel 1470 ----------------- 1471 If you are updating from a prior version of FreeBSD (even one just 1472 a few days old), you should follow this procedure. It is the most 1473 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1474 1475 make kernel-toolchain 1476 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1477 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1478 1479 To test a kernel once 1480 --------------------- 1481 If you just want to boot a kernel once (because you are not sure 1482 if it works, or if you want to boot a known bad kernel to provide 1483 debugging information) run 1484 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1485 nextboot -k testkernel 1486 1487 To just build a kernel when you know that it won't mess you up 1488 -------------------------------------------------------------- 1489 This assumes you are already running a CURRENT system. Replace 1490 ${arch} with the architecture of your machine (e.g. "i386", 1491 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1492 1493 cd src/sys/${arch}/conf 1494 config KERNEL_NAME_HERE 1495 cd ../compile/KERNEL_NAME_HERE 1496 make depend 1497 make 1498 make install 1499 1500 If this fails, go to the "To build a kernel" section. 1501 1502 To rebuild everything and install it on the current system. 1503 ----------------------------------------------------------- 1504 # Note: sometimes if you are running current you gotta do more than 1505 # is listed here if you are upgrading from a really old current. 1506 1507 <make sure you have good level 0 dumps> 1508 make buildworld 1509 make kernel KERNCONF=YOUR_KERNEL_HERE 1510 [1] 1511 <reboot in single user> [3] 1512 mergemaster -Fp [5] 1513 make installworld 1514 mergemaster -Fi [4] 1515 make delete-old [6] 1516 <reboot> 1517 1518 To cross-install current onto a separate partition 1519 -------------------------------------------------- 1520 # In this approach we use a separate partition to hold 1521 # current's root, 'usr', and 'var' directories. A partition 1522 # holding "/", "/usr" and "/var" should be about 2GB in 1523 # size. 1524 1525 <make sure you have good level 0 dumps> 1526 <boot into -stable> 1527 make buildworld 1528 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1529 <maybe newfs current's root partition> 1530 <mount current's root partition on directory ${CURRENT_ROOT}> 1531 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1532 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1533 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1534 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1535 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1536 <reboot into current> 1537 <do a "native" rebuild/install as described in the previous section> 1538 <maybe install compatibility libraries from ports/misc/compat*> 1539 <reboot> 1540 1541 1542 To upgrade in-place from stable to current 1543 ---------------------------------------------- 1544 <make sure you have good level 0 dumps> 1545 make buildworld [9] 1546 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1547 [1] 1548 <reboot in single user> [3] 1549 mergemaster -Fp [5] 1550 make installworld 1551 mergemaster -Fi [4] 1552 make delete-old [6] 1553 <reboot> 1554 1555 Make sure that you've read the UPDATING file to understand the 1556 tweaks to various things you need. At this point in the life 1557 cycle of current, things change often and you are on your own 1558 to cope. The defaults can also change, so please read ALL of 1559 the UPDATING entries. 1560 1561 Also, if you are tracking -current, you must be subscribed to 1562 freebsd-current@freebsd.org. Make sure that before you update 1563 your sources that you have read and understood all the recent 1564 messages there. If in doubt, please track -stable which has 1565 much fewer pitfalls. 1566 1567 [1] If you have third party modules, such as vmware, you 1568 should disable them at this point so they don't crash your 1569 system on reboot. 1570 1571 [3] From the bootblocks, boot -s, and then do 1572 fsck -p 1573 mount -u / 1574 mount -a 1575 cd src 1576 adjkerntz -i # if CMOS is wall time 1577 Also, when doing a major release upgrade, it is required that 1578 you boot into single user mode to do the installworld. 1579 1580 [4] Note: This step is non-optional. Failure to do this step 1581 can result in a significant reduction in the functionality of the 1582 system. Attempting to do it by hand is not recommended and those 1583 that pursue this avenue should read this file carefully, as well 1584 as the archives of freebsd-current and freebsd-hackers mailing lists 1585 for potential gotchas. The -U option is also useful to consider. 1586 See mergemaster(8) for more information. 1587 1588 [5] Usually this step is a noop. However, from time to time 1589 you may need to do this if you get unknown user in the following 1590 step. It never hurts to do it all the time. You may need to 1591 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1592 install) after the buildworld before this step if you last updated 1593 from current before 20130425 or from -stable before 20130430. 1594 1595 [6] This only deletes old files and directories. Old libraries 1596 can be deleted by "make delete-old-libs", but you have to make 1597 sure that no program is using those libraries anymore. 1598 1599 [8] In order to have a kernel that can run the 4.x binaries needed to 1600 do an installworld, you must include the COMPAT_FREEBSD4 option in 1601 your kernel. Failure to do so may leave you with a system that is 1602 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1603 required to run the 5.x binaries on more recent kernels. And so on 1604 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1605 1606 Make sure that you merge any new devices from GENERIC since the 1607 last time you updated your kernel config file. 1608 1609 [9] When checking out sources, you must include the -P flag to have 1610 cvs prune empty directories. 1611 1612 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1613 "?=" instead of the "=" assignment operator, so that buildworld can 1614 override the CPUTYPE if it needs to. 1615 1616 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1617 not on the command line, or in /etc/make.conf. buildworld will 1618 warn if it is improperly defined. 1619FORMAT: 1620 1621This file contains a list, in reverse chronological order, of major 1622breakages in tracking -current. It is not guaranteed to be a complete 1623list of such breakages, and only contains entries since September 23, 2011. 1624If you need to see UPDATING entries from before that date, you will need 1625to fetch an UPDATING file from an older FreeBSD release. 1626 1627Copyright information: 1628 1629Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1630 1631Redistribution, publication, translation and use, with or without 1632modification, in full or in part, in any form or format of this 1633document are permitted without further permission from the author. 1634 1635THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1636IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1637WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1638DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1639INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1640(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1641SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1642HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1643STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1644IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1645POSSIBILITY OF SUCH DAMAGE. 1646 1647Contact Warner Losh if you have any questions about your use of 1648this document. 1649 1650$FreeBSD: stable/11/UPDATING 315846 2017-03-23 08:19:31Z avg $ 1651