UPDATING revision 302410
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 1920160622: 20 The libc stub for the pipe(2) system call has been replaced with 21 a wrapper which calls the pipe2(2) system call and the pipe(2) is now 22 only implemented by the kernels which include "options 23 COMPAT_FREEBSD10" in their config file (this is the default). 24 Users should ensure that this option is enabled in their kernel 25 or upgrade userspace to r302092 before upgrading their kernel. 26 2720160527: 28 CAM will now strip leading spaces from SCSI disks' serial numbers. 29 This will effect users who create UFS filesystems on SCSI disks using 30 those disk's diskid device nodes. For example, if /etc/fstab 31 previously contained a line like 32 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 33 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 34 transforms like gmirror may also be affected. ZFS users should 35 generally be fine. 36 3720160523: 38 The bitstring(3) API has been updated with new functionality and 39 improved performance. But it is binary-incompatible with the old API. 40 Objects built with the new headers may not be linked against objects 41 built with the old headers. 42 4320160520: 44 The brk and sbrk functions have been removed from libc on arm64. 45 Binutils from ports has been updated to not link to these 46 functions and should be updated to the latest version before 47 installing a new libc. 48 4920160517: 50 The armv6 port now defaults to hard float ABI. Limited support 51 for running both hardfloat and soft float on the same system 52 is available using the libraries installed with -DWITH_LIBSOFT. 53 This has only been tested as an upgrade path for installworld 54 and packages may fail or need manual intervention to run. New 55 packages will be needed. 56 57 To update an existing self-hosted armv6hf system, you must add 58 TARGET_ARCH=armv6 on the make command line for both the build 59 and the install steps. 60 6120160510: 62 Kernel modules compiled outside of a kernel build now default to 63 installing to /boot/modules instead of /boot/kernel. Many kernel 64 modules built this way (such as those in ports) already overrode 65 KMODDIR explicitly to install into /boot/modules. However, 66 manually building and installing a module from /sys/modules will 67 now install to /boot/modules instead of /boot/kernel. 68 6920160414: 70 The CAM I/O scheduler has been committed to the kernel. There should be 71 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 72 list of known rogues that claim support for this but actually corrupt 73 data is believed to be complete, be on the lookout for data 74 corruption. The known rogue list is believed to be complete: 75 76 o Crucial MX100, M550 drives with MU01 firmware. 77 o Micron M510 and M550 drives with MU01 firmware. 78 o Micron M500 prior to MU07 firmware 79 o Samsung 830, 840, and 850 all firmwares 80 o FCCT M500 all firmwares 81 82 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 83 with working NCQ TRIM. For Micron branded drives, see your sales rep for 84 updated firmware. Black listed drives will work correctly because these 85 drives work correctly so long as no NCQ TRIMs are sent to them. Given 86 this list is the same as found in Linux, it's believed there are no 87 other rogues in the market place. All other models from the above 88 vendors work. 89 90 To be safe, if you are at all concerned, you can quirk each of your 91 drives to prevent NCQ from being sent by setting: 92 kern.cam.ada.X.quirks="0x2" 93 in loader.conf. If the drive requires the 4k sector quirk, set the 94 quirks entry to 0x3. 95 9620160330: 97 The FAST_DEPEND build option has been removed and its functionality is 98 now the one true way. The old mkdep(1) style of 'make depend' has 99 been removed. See 20160311 for further details. 100 10120160317: 102 Resource range types have grown from unsigned long to uintmax_t. All 103 drivers, and anything using libdevinfo, need to be recompiled. 104 10520160311: 106 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 107 builds. It no longer runs mkdep(1) during 'make depend', and the 108 'make depend' stage can safely be skipped now as it is auto ran 109 when building 'make all' and will generate all SRCS and DPSRCS before 110 building anything else. Dependencies are gathered at compile time with 111 -MF flags kept in separate .depend files per object file. Users should 112 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 113 stale .depend files. 114 11520160306: 116 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 117 kernel modules. Therefore, if you load any kernel modules at boot time, 118 please install the boot loaders after you install the kernel, but before 119 rebooting, e.g.: 120 121 make buildworld 122 make kernel KERNCONF=YOUR_KERNEL_HERE 123 make -C sys/boot install 124 <reboot in single user> 125 126 Then follow the usual steps, described in the General Notes section, 127 below. 128 12920160305: 130 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 131 see the 20141231 entry below for information about prerequisites and 132 upgrading, if you are not already using clang 3.5.0 or higher. 133 13420160301: 135 The AIO subsystem is now a standard part of the kernel. The 136 VFS_AIO kernel option and aio.ko kernel module have been removed. 137 Due to stability concerns, asynchronous I/O requests are only 138 permitted on sockets and raw disks by default. To enable 139 asynchronous I/O requests on all file types, set the 140 vfs.aio.enable_unsafe sysctl to a non-zero value. 141 14220160226: 143 The ELF object manipulation tool objcopy is now provided by the 144 ELF Tool Chain project rather than by GNU binutils. It should be a 145 drop-in replacement, with the addition of arm64 support. The 146 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 147 to obtain the GNU version if necessary. 148 14920160129: 150 Building ZFS pools on top of zvols is prohibited by default. That 151 feature has never worked safely; it's always been prone to deadlocks. 152 Using a zvol as the backing store for a VM guest's virtual disk will 153 still work, even if the guest is using ZFS. Legacy behavior can be 154 restored by setting vfs.zfs.vol.recursive=1. 155 15620160119: 157 The NONE and HPN patches has been removed from OpenSSH. They are 158 still available in the security/openssh-portable port. 159 16020160113: 161 With the addition of ypldap(8), a new _ypldap user is now required 162 during installworld. "mergemaster -p" can be used to add the user 163 prior to installworld, as documented in the handbook. 164 16520151216: 166 The tftp loader (pxeboot) now uses the option root-path directive. As a 167 consequence it no longer looks for a pxeboot.4th file on the tftp 168 server. Instead it uses the regular /boot infrastructure as with the 169 other loaders. 170 17120151211: 172 The code to start recording plug and play data into the modules has 173 been committed. While the old tools will properly build a new kernel, 174 a number of warnings about "unknown metadata record 4" will be produced 175 for an older kldxref. To avoid such warnings, make sure to rebuild 176 the kernel toolchain (or world). Make sure that you have r292078 or 177 later when trying to build 292077 or later before rebuilding. 178 17920151207: 180 Debug data files are now built by default with 'make buildworld' and 181 installed with 'make installworld'. This facilitates debugging but 182 requires more disk space both during the build and for the installed 183 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 184 in src.conf(5). 185 18620151130: 187 r291527 changed the internal interface between the nfsd.ko and 188 nfscommon.ko modules. As such, they must both be upgraded to-gether. 189 __FreeBSD_version has been bumped because of this. 190 19120151108: 192 Add support for unicode collation strings leads to a change of 193 order of files listed by ls(1) for example. To get back to the old 194 behaviour, set LC_COLLATE environment variable to "C". 195 196 Databases administrators will need to reindex their databases given 197 collation results will be different. 198 199 Due to a bug in install(1) it is recommended to remove the ancient 200 locales before running make installworld. 201 202 rm -rf /usr/share/locale/* 203 20420151030: 205 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 206 libcrypto.so.7 or libssl.so.7 must be recompiled. 207 20820151020: 209 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 210 Kernel modules isp_2400_multi and isp_2500_multi were removed and 211 should be replaced with isp_2400 and isp_2500 modules respectively. 212 21320151017: 214 The build previously allowed using 'make -n' to not recurse into 215 sub-directories while showing what commands would be executed, and 216 'make -n -n' to recursively show commands. Now 'make -n' will recurse 217 and 'make -N' will not. 218 21920151012: 220 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 221 and etcupdate will now use this file. A custom sendmail.cf is now 222 updated via this mechanism rather than via installworld. If you had 223 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 224 want to remove the exclusion or change it to "always install". 225 /etc/mail/sendmail.cf is now managed the same way regardless of 226 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 227 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 228 22920151011: 230 Compatibility shims for legacy ATA device names have been removed. 231 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 232 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 233 environment variables, /dev/ad* and /dev/ar* symbolic links. 234 23520151006: 236 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 237 Please see the 20141231 entry below for information about prerequisites 238 and upgrading, if you are not already using clang 3.5.0 or higher. 239 24020150924: 241 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 242 and renamed from .symbols to .debug. This reduces the size requirements 243 on the boot partition or file system and provides consistency with 244 userland debug files. 245 246 When using the supported kernel installation method the 247 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 248 as is done with /boot/kernel. 249 250 Developers wishing to maintain the historical behavior of installing 251 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 252 25320150827: 254 The wireless drivers had undergone changes that remove the 'parent 255 interface' from the ifconfig -l output. The rc.d network scripts 256 used to check presence of a parent interface in the list, so old 257 scripts would fail to start wireless networking. Thus, etcupdate(3) 258 or mergemaster(8) run is required after kernel update, to update your 259 rc.d scripts in /etc. 260 26120150827: 262 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 263 These configurations are now automatically interpreted as 264 'scrub fragment reassemble'. 265 26620150817: 267 Kernel-loadable modules for the random(4) device are back. To use 268 them, the kernel must have 269 270 device random 271 options RANDOM_LOADABLE 272 273 kldload(8) can then be used to load random_fortuna.ko 274 or random_yarrow.ko. Please note that due to the indirect 275 function calls that the loadable modules need to provide, 276 the build-in variants will be slightly more efficient. 277 278 The random(4) kernel option RANDOM_DUMMY has been retired due to 279 unpopularity. It was not all that useful anyway. 280 28120150813: 282 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 283 Control over building the ELF Tool Chain tools is now provided by 284 the WITHOUT_TOOLCHAIN knob. 285 28620150810: 287 The polarity of Pulse Per Second (PPS) capture events with the 288 uart(4) driver has been corrected. Prior to this change the PPS 289 "assert" event corresponded to the trailing edge of a positive PPS 290 pulse and the "clear" event was the leading edge of the next pulse. 291 292 As the width of a PPS pulse in a typical GPS receiver is on the 293 order of 1 millisecond, most users will not notice any significant 294 difference with this change. 295 296 Anyone who has compensated for the historical polarity reversal by 297 configuring a negative offset equal to the pulse width will need to 298 remove that workaround. 299 30020150809: 301 The default group assigned to /dev/dri entries has been changed 302 from 'wheel' to 'video' with the id of '44'. If you want to have 303 access to the dri devices please add yourself to the video group 304 with: 305 306 # pw groupmod video -m $USER 307 30820150806: 309 The menu.rc and loader.rc files will now be replaced during 310 upgrades. Please migrate local changes to menu.rc.local and 311 loader.rc.local instead. 312 31320150805: 314 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 315 strings and strip have been removed. The src.conf(5) knob 316 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 317 31820150728: 319 As ZFS requires more kernel stack pages than is the default on some 320 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 321 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 322 323 Please consider using 'options KSTACK_PAGES=X' where X is greater 324 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 325 32620150706: 327 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 328 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 329 default, i.e., they will not contain "::". For example, instead 330 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 331 to have a more specific match, such as different map entries for 332 IPv6:0:0 vs IPv6:0. This change requires that configuration 333 data (including maps, files, classes, custom ruleset, etc.) must 334 use the same format, so make certain such configuration data is 335 upgrading. As a very simple check search for patterns like 336 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 337 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 338 the cf option UseCompressedIPv6Addresses. 339 34020150630: 341 The default kernel entropy-processing algorithm is now 342 Fortuna, replacing Yarrow. 343 344 Assuming you have 'device random' in your kernel config 345 file, the configurations allow a kernel option to override 346 this default. You may choose *ONE* of: 347 348 options RANDOM_YARROW # Legacy /dev/random algorithm. 349 options RANDOM_DUMMY # Blocking-only driver. 350 351 If you have neither, you get Fortuna. For most people, 352 read no further, Fortuna will give a /dev/random that works 353 like it always used to, and the difference will be irrelevant. 354 355 If you remove 'device random', you get *NO* kernel-processed 356 entropy at all. This may be acceptable to folks building 357 embedded systems, but has complications. Carry on reading, 358 and it is assumed you know what you need. 359 360 *PLEASE* read random(4) and random(9) if you are in the 361 habit of tweaking kernel configs, and/or if you are a member 362 of the embedded community, wanting specific and not-usual 363 behaviour from your security subsystems. 364 365 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 366 random', you will NOT have a functioning /dev/random, and 367 many cryptographic features will not work, including SSH. 368 You may also find strange behaviour from the random(3) set 369 of library functions, in particular sranddev(3), srandomdev(3) 370 and arc4random(3). The reason for this is that the KERN_ARND 371 sysctl only returns entropy if it thinks it has some to 372 share, and with RANDOM_DUMMY or no 'device random' this 373 will never happen. 374 37520150623: 376 An additional fix for the issue described in the 20150614 sendmail 377 entry below has been been committed in revision 284717. 378 37920150616: 380 FreeBSD's old make (fmake) has been removed from the system. It is 381 available as the devel/fmake port or via pkg install fmake. 382 38320150615: 384 The fix for the issue described in the 20150614 sendmail entry 385 below has been been committed in revision 284436. The work 386 around described in that entry is no longer needed unless the 387 default setting is overridden by a confDH_PARAMETERS configuration 388 setting of '5' or pointing to a 512 bit DH parameter file. 389 39020150614: 391 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 392 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 393 and devel/kyua to version 0.20+ and adjust any calling code to work 394 with Kyuafile and kyua. 395 39620150614: 397 The import of openssl to address the FreeBSD-SA-15:10.openssl 398 security advisory includes a change which rejects handshakes 399 with DH parameters below 768 bits. sendmail releases prior 400 to 8.15.2 (not yet released), defaulted to a 512 bit 401 DH parameter setting for client connections. To work around 402 this interoperability, sendmail can be configured to use a 403 2048 bit DH parameter by: 404 405 1. Edit /etc/mail/`hostname`.mc 406 2. If a setting for confDH_PARAMETERS does not exist or 407 exists and is set to a string beginning with '5', 408 replace it with '2'. 409 3. If a setting for confDH_PARAMETERS exists and is set to 410 a file path, create a new file with: 411 openssl dhparam -out /path/to/file 2048 412 4. Rebuild the .cf file: 413 cd /etc/mail/; make; make install 414 5. Restart sendmail: 415 cd /etc/mail/; make restart 416 417 A sendmail patch is coming, at which time this file will be 418 updated. 419 42020150604: 421 Generation of legacy formatted entries have been disabled by default 422 in pwd_mkdb(8), as all base system consumers of the legacy formatted 423 entries were converted to use the new format by default when the new, 424 machine independent format have been added and supported since FreeBSD 425 5.x. 426 427 Please see the pwd_mkdb(8) manual page for further details. 428 42920150525: 430 Clang and llvm have been upgraded to 3.6.1 release. Please see the 431 20141231 entry below for information about prerequisites and upgrading, 432 if you are not already using 3.5.0 or higher. 433 43420150521: 435 TI platform code switched to using vendor DTS files and this update 436 may break existing systems running on Beaglebone, Beaglebone Black, 437 and Pandaboard: 438 439 - dtb files should be regenerated/reinstalled. Filenames are the 440 same but content is different now 441 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 442 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 443 addressing scheme is now pin 25 on /dev/gpioc3. 444 - Pandaboard: /etc/ttys should be updated, serial console device is 445 now /dev/ttyu2, not /dev/ttyu0 446 44720150501: 448 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 449 If you need the GNU extension from groff soelim(1), install groff 450 from package: pkg install groff, or via ports: textproc/groff. 451 45220150423: 453 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 454 defined in symlink(7); previously symlinks were silently ignored. 455 45620150415: 457 The const qualifier has been removed from iconv(3) to comply with 458 POSIX. The ports tree is aware of this from r384038 onwards. 459 46020150416: 461 Libraries specified by LIBADD in Makefiles must have a corresponding 462 DPADD_<lib> variable to ensure correct dependencies. This is now 463 enforced in src.libnames.mk. 464 46520150324: 466 From legacy ata(4) driver was removed support for SATA controllers 467 supported by more functional drivers ahci(4), siis(4) and mvs(4). 468 Kernel modules ataahci and ataadaptec were removed completely, 469 replaced by ahci and mvs modules respectively. 470 47120150315: 472 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 473 the 20141231 entry below for information about prerequisites and 474 upgrading, if you are not already using 3.5.0 or higher. 475 47620150307: 477 The 32-bit PowerPC kernel has been changed to a position-independent 478 executable. This can only be booted with a version of loader(8) 479 newer than January 31, 2015, so make sure to update both world and 480 kernel before rebooting. 481 48220150217: 483 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 484 but before r278950, the RNG was not seeded properly. Immediately 485 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 486 ssh keys or openssl keys) that were generated w/ a kernel from that 487 range. This does not affect programs that directly used /dev/random 488 or /dev/urandom. All userland uses of arc4random(3) are affected. 489 49020150210: 491 The autofs(4) ABI was changed in order to restore binary compatibility 492 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 493 with the new kernel. 494 49520150131: 496 The powerpc64 kernel has been changed to a position-independent 497 executable. This can only be booted with a new version of loader(8), 498 so make sure to update both world and kernel before rebooting. 499 50020150118: 501 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 502 only release, no new features have been added. Please see the 20141231 503 entry below for information about prerequisites and upgrading, if you 504 are not already using 3.5.0. 505 50620150107: 507 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 508 taken from the ELF Tool Chain project rather than GNU binutils. They 509 should be drop-in replacements, with the addition of arm64 support. 510 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 511 binutils tools, if necessary. See 20150805 for updated information. 512 51320150105: 514 The default Unbound configuration now enables remote control 515 using a local socket. Users who have already enabled the 516 local_unbound service should regenerate their configuration 517 by running "service local_unbound setup" as root. 518 51920150102: 520 The GNU texinfo and GNU info pages have been removed. 521 To be able to view GNU info pages please install texinfo from ports. 522 52320141231: 524 Clang, llvm and lldb have been upgraded to 3.5.0 release. 525 526 As of this release, a prerequisite for building clang, llvm and lldb is 527 a C++11 capable compiler and C++11 standard library. This means that to 528 be able to successfully build the cross-tools stage of buildworld, with 529 clang as the bootstrap compiler, your system compiler or cross compiler 530 should either be clang 3.3 or later, or gcc 4.8 or later, and your 531 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 532 later. 533 534 On any standard FreeBSD 10.x or 11.x installation, where clang and 535 libc++ are on by default (that is, on x86 or arm), this should work out 536 of the box. 537 538 On 9.x installations where clang is enabled by default, e.g. on x86 and 539 powerpc, libc++ will not be enabled by default, so libc++ should be 540 built (with clang) and installed first. If both clang and libc++ are 541 missing, build clang first, then use it to build libc++. 542 543 On 8.x and earlier installations, upgrade to 9.x first, and then follow 544 the instructions for 9.x above. 545 546 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 547 default, and do not build clang. 548 549 Many embedded systems are resource constrained, and will not be able to 550 build clang in a reasonable time, or in some cases at all. In those 551 cases, cross building bootable systems on amd64 is a workaround. 552 553 This new version of clang introduces a number of new warnings, of which 554 the following are most likely to appear: 555 556 -Wabsolute-value 557 558 This warns in two cases, for both C and C++: 559 * When the code is trying to take the absolute value of an unsigned 560 quantity, which is effectively a no-op, and almost never what was 561 intended. The code should be fixed, if at all possible. If you are 562 sure that the unsigned quantity can be safely cast to signed, without 563 loss of information or undefined behavior, you can add an explicit 564 cast, or disable the warning. 565 566 * When the code is trying to take an absolute value, but the called 567 abs() variant is for the wrong type, which can lead to truncation. 568 If you want to disable the warning instead of fixing the code, please 569 make sure that truncation will not occur, or it might lead to unwanted 570 side-effects. 571 572 -Wtautological-undefined-compare and 573 -Wundefined-bool-conversion 574 575 These warn when C++ code is trying to compare 'this' against NULL, while 576 'this' should never be NULL in well-defined C++ code. However, there is 577 some legacy (pre C++11) code out there, which actively abuses this 578 feature, which was less strictly defined in previous C++ versions. 579 580 Squid and openjdk do this, for example. The warning can be turned off 581 for C++98 and earlier, but compiling the code in C++11 mode might result 582 in unexpected behavior; for example, the parts of the program that are 583 unreachable could be optimized away. 584 58520141222: 586 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 587 kernel sources have been removed. The .h files remain, since some 588 utilities include them. This will need to be fixed later. 589 If "mount -t oldnfs ..." is attempted, it will fail. 590 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 591 the utilities will report errors. 592 59320141121: 594 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 595 directories to top level SUBDIR variable when their parent 596 directory is included in LOCAL_DIRS. Users with build systems with 597 such hierarchies and without SUBDIR entries in the parent 598 directory Makefiles should add them or add the directories to 599 LOCAL_DIRS. 600 60120141109: 602 faith(4) and faithd(8) have been removed from the base system. Faith 603 has been obsolete for a very long time. 604 60520141104: 606 vt(4), the new console driver, is enabled by default. It brings 607 support for Unicode and double-width characters, as well as 608 support for UEFI and integration with the KMS kernel video 609 drivers. 610 611 You may need to update your console settings in /etc/rc.conf, 612 most probably the keymap. During boot, /etc/rc.d/syscons will 613 indicate what you need to do. 614 615 vt(4) still has issues and lacks some features compared to 616 syscons(4). See the wiki for up-to-date information: 617 https://wiki.freebsd.org/Newcons 618 619 If you want to keep using syscons(4), you can do so by adding 620 the following line to /boot/loader.conf: 621 kern.vty=sc 622 62320141102: 624 pjdfstest has been integrated into kyua as an opt-in test suite. 625 Please see share/doc/pjdfstest/README for more details on how to 626 execute it. 627 62820141009: 629 gperf has been removed from the base system for architectures 630 that use clang. Ports that require gperf will obtain it from the 631 devel/gperf port. 632 63320140923: 634 pjdfstest has been moved from tools/regression/pjdfstest to 635 contrib/pjdfstest . 636 63720140922: 638 At svn r271982, The default linux compat kernel ABI has been adjusted 639 to 2.6.18 in support of the linux-c6 compat ports infrastructure 640 update. If you wish to continue using the linux-f10 compat ports, 641 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 642 encouraged to update their linux-compat packages to linux-c6 during 643 their next update cycle. 644 64520140729: 646 The ofwfb driver, used to provide a graphics console on PowerPC when 647 using vt(4), no longer allows mmap() of all physical memory. This 648 will prevent Xorg on PowerPC with some ATI graphics cards from 649 initializing properly unless x11-servers/xorg-server is updated to 650 1.12.4_8 or newer. 651 65220140723: 653 The xdev targets have been converted to using TARGET and 654 TARGET_ARCH instead of XDEV and XDEV_ARCH. 655 65620140719: 657 The default unbound configuration has been modified to address 658 issues with reverse lookups on networks that use private 659 address ranges. If you use the local_unbound service, run 660 "service local_unbound setup" as root to regenerate your 661 configuration, then "service local_unbound reload" to load the 662 new configuration. 663 66420140709: 665 The GNU texinfo and GNU info pages are not built and installed 666 anymore, WITH_INFO knob has been added to allow to built and install 667 them again. 668 UPDATE: see 20150102 entry on texinfo's removal 669 67020140708: 671 The GNU readline library is now an INTERNALLIB - that is, it is 672 statically linked into consumers (GDB and variants) in the base 673 system, and the shared library is no longer installed. The 674 devel/readline port is available for third party software that 675 requires readline. 676 67720140702: 678 The Itanium architecture (ia64) has been removed from the list of 679 known architectures. This is the first step in the removal of the 680 architecture. 681 68220140701: 683 Commit r268115 has added NFSv4.1 server support, merged from 684 projects/nfsv4.1-server. Since this includes changes to the 685 internal interfaces between the NFS related modules, a full 686 build of the kernel and modules will be necessary. 687 __FreeBSD_version has been bumped. 688 68920140629: 690 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 691 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 692 which differs from the behaviour controlled by this knob.) 693 69420140619: 695 Maximal length of the serial number in CTL was increased from 16 to 696 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 697 and ctld, need to be rebuilt to work with a new kernel. 698 69920140606: 700 The libatf-c and libatf-c++ major versions were downgraded to 0 and 701 1 respectively to match the upstream numbers. They were out of 702 sync because, when they were originally added to FreeBSD, the 703 upstream versions were not respected. These libraries are private 704 and not yet built by default, so renumbering them should be a 705 non-issue. However, unclean source trees will yield broken test 706 programs once the operator executes "make delete-old-libs" after a 707 "make installworld". 708 709 Additionally, the atf-sh binary was made private by moving it into 710 /usr/libexec/. Already-built shell test programs will keep the 711 path to the old binary so they will break after "make delete-old" 712 is run. 713 714 If you are using WITH_TESTS=yes (not the default), wipe the object 715 tree and rebuild from scratch to prevent spurious test failures. 716 This is only needed once: the misnumbered libraries and misplaced 717 binaries have been added to OptionalObsoleteFiles.inc so they will 718 be removed during a clean upgrade. 719 72020140512: 721 Clang and llvm have been upgraded to 3.4.1 release. 722 72320140508: 724 We bogusly installed src.opts.mk in /usr/share/mk. This file should 725 be removed to avoid issues in the future (and has been added to 726 ObsoleteFiles.inc). 727 72820140505: 729 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 730 past, it affected all builds that used the bsd.*.mk files. The old 731 behavior was a bug, but people may have relied upon it. To get this 732 behavior back, you can .include /etc/src.conf from /etc/make.conf 733 (which is still global and isn't changed). This also changes the 734 behavior of incremental builds inside the tree of individual 735 directories. Set MAKESYSPATH to ".../share/mk" to do that. 736 Although this has survived make universe and some upgrade scenarios, 737 other upgrade scenarios may have broken. At least one form of 738 temporary breakage was fixed with MAKESYSPATH settings for buildworld 739 as well... In cases where MAKESYSPATH isn't working with this 740 setting, you'll need to set it to the full path to your tree. 741 742 One side effect of all this cleaning up is that bsd.compiler.mk 743 is no longer implicitly included by bsd.own.mk. If you wish to 744 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 745 as well. 746 74720140430: 748 The lindev device has been removed since /dev/full has been made a 749 standard device. __FreeBSD_version has been bumped. 750 75120140424: 752 The knob WITHOUT_VI was added to the base system, which controls 753 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 754 in order to reorder files share/termcap and didn't build ex(1) as a 755 build tool, so building/installing with WITH_VI is highly advised for 756 build hosts for older releases. 757 758 This issue has been fixed in stable/9 and stable/10 in r277022 and 759 r276991, respectively. 760 76120140418: 762 The YES_HESIOD knob has been removed. It has been obsolete for 763 a decade. Please move to using WITH_HESIOD instead or your builds 764 will silently lack HESIOD. 765 76620140405: 767 The uart(4) driver has been changed with respect to its handling 768 of the low-level console. Previously the uart(4) driver prevented 769 any process from changing the baudrate or the CLOCAL and HUPCL 770 control flags. By removing the restrictions, operators can make 771 changes to the serial console port without having to reboot. 772 However, when getty(8) is started on the serial device that is 773 associated with the low-level console, a misconfigured terminal 774 line in /etc/ttys will now have a real impact. 775 Before upgrading the kernel, make sure that /etc/ttys has the 776 serial console device configured as 3wire without baudrate to 777 preserve the previous behaviour. E.g: 778 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 779 78020140306: 781 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 782 to improve performance. To re-enable it, if needed, run rpcbind 783 with command line option -W. 784 78520140226: 786 Switched back to the GPL dtc compiler due to updates in the upstream 787 dts files not being supported by the BSDL dtc compiler. You will need 788 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 789 may result while building dtb files during a kernel build if you fail 790 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 791 79220140216: 793 Clang and llvm have been upgraded to 3.4 release. 794 79520140216: 796 The nve(4) driver has been removed. Please use the nfe(4) driver 797 for NVIDIA nForce MCP Ethernet adapters instead. 798 79920140212: 800 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 801 This could cause certain C++ applications using shared libraries built 802 against the previous version of libc++ to crash. The incompatibility 803 has now been fixed, but any C++ applications or shared libraries built 804 between r261283 and r261801 should be recompiled. 805 80620140204: 807 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 808 capability mode support. Please note that enabling the feature in 809 kernel is still highly recommended. 810 81120140131: 812 OpenSSH is now built with sandbox support, and will use sandbox as 813 the default privilege separation method. This requires Capsicum 814 capability mode support in kernel. 815 81620140128: 817 The libelf and libdwarf libraries have been updated to newer 818 versions from upstream. Shared library version numbers for 819 these two libraries were bumped. Any ports or binaries 820 requiring these two libraries should be recompiled. 821 __FreeBSD_version is bumped to 1100006. 822 82320140110: 824 If a Makefile in a tests/ directory was auto-generating a Kyuafile 825 instead of providing an explicit one, this would prevent such 826 Makefile from providing its own Kyuafile in the future during 827 NO_CLEAN builds. This has been fixed in the Makefiles but manual 828 intervention is needed to clean an objdir if you use NO_CLEAN: 829 # find /usr/obj -name Kyuafile | xargs rm -f 830 83120131213: 832 The behavior of gss_pseudo_random() for the krb5 mechanism 833 has changed, for applications requesting a longer random string 834 than produced by the underlying enctype's pseudo-random() function. 835 In particular, the random string produced from a session key of 836 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 837 be different at the 17th octet and later, after this change. 838 The counter used in the PRF+ construction is now encoded as a 839 big-endian integer in accordance with RFC 4402. 840 __FreeBSD_version is bumped to 1100004. 841 84220131108: 843 The WITHOUT_ATF build knob has been removed and its functionality 844 has been subsumed into the more generic WITHOUT_TESTS. If you were 845 using the former to disable the build of the ATF libraries, you 846 should change your settings to use the latter. 847 84820131025: 849 The default version of mtree is nmtree which is obtained from 850 NetBSD. The output is generally the same, but may vary 851 slightly. If you found you need identical output adding 852 "-F freebsd9" to the command line should do the trick. For the 853 time being, the old mtree is available as fmtree. 854 85520131014: 856 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 857 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 858 1.1.4_8 and verify bsdyml not linked in, before running "make 859 delete-old-libs": 860 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 861 or 862 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 863 86420131010: 865 The stable/10 branch has been created in subversion from head 866 revision r256279. 867 86820131010: 869 The rc.d/jail script has been updated to support jail(8) 870 configuration file. The "jail_<jname>_*" rc.conf(5) variables 871 for per-jail configuration are automatically converted to 872 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 873 This is transparently backward compatible. See below about some 874 incompatibilities and rc.conf(5) manual page for more details. 875 876 These variables are now deprecated in favor of jail(8) configuration 877 file. One can use "rc.d/jail config <jname>" command to generate 878 a jail(8) configuration file in /var/run/jail.<jname>.conf without 879 running the jail(8) utility. The default pathname of the 880 configuration file is /etc/jail.conf and can be specified by 881 using $jail_conf or $jail_<jname>_conf variables. 882 883 Please note that jail_devfs_ruleset accepts an integer at 884 this moment. Please consider to rewrite the ruleset name 885 with an integer. 886 88720130930: 888 BIND has been removed from the base system. If all you need 889 is a local resolver, simply enable and start the local_unbound 890 service instead. Otherwise, several versions of BIND are 891 available in the ports tree. The dns/bind99 port is one example. 892 893 With this change, nslookup(1) and dig(1) are no longer in the base 894 system. Users should instead use host(1) and drill(1) which are 895 in the base system. Alternatively, nslookup and dig can 896 be obtained by installing the dns/bind-tools port. 897 89820130916: 899 With the addition of unbound(8), a new unbound user is now 900 required during installworld. "mergemaster -p" can be used to 901 add the user prior to installworld, as documented in the handbook. 902 90320130911: 904 OpenSSH is now built with DNSSEC support, and will by default 905 silently trust signed SSHFP records. This can be controlled with 906 the VerifyHostKeyDNS client configuration setting. DNSSEC support 907 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 908 90920130906: 910 The GNU Compiler Collection and C++ standard library (libstdc++) 911 are no longer built by default on platforms where clang is the system 912 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 913 options in src.conf. 914 91520130905: 916 The PROCDESC kernel option is now part of the GENERIC kernel 917 configuration and is required for the rwhod(8) to work. 918 If you are using custom kernel configuration, you should include 919 'options PROCDESC'. 920 92120130905: 922 The API and ABI related to the Capsicum framework was modified 923 in backward incompatible way. The userland libraries and programs 924 have to be recompiled to work with the new kernel. This includes the 925 following libraries and programs, but the whole buildworld is 926 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 927 kdump, procstat, rwho, rwhod, uniq. 928 92920130903: 930 AES-NI intrinsic support has been added to gcc. The AES-NI module 931 has been updated to use this support. A new gcc is required to build 932 the aesni module on both i386 and amd64. 933 93420130821: 935 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 936 Thus "device padlock_rng" and "device rdrand_rng" should be 937 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 938 93920130813: 940 WITH_ICONV has been split into two feature sets. WITH_ICONV now 941 enables just the iconv* functionality and is now on by default. 942 WITH_LIBICONV_COMPAT enables the libiconv api and link time 943 compatibility. Set WITHOUT_ICONV to build the old way. 944 If you have been using WITH_ICONV before, you will very likely 945 need to turn on WITH_LIBICONV_COMPAT. 946 94720130806: 948 INVARIANTS option now enables DEBUG for code with OpenSolaris and 949 Illumos origin, including ZFS. If you have INVARIANTS in your 950 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 951 explicitly. 952 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 953 locks if WITNESS option was set. Because that generated a lot of 954 witness(9) reports and all of them were believed to be false 955 positives, this is no longer done. New option OPENSOLARIS_WITNESS 956 can be used to achieve the previous behavior. 957 95820130806: 959 Timer values in IPv6 data structures now use time_uptime instead 960 of time_second. Although this is not a user-visible functional 961 change, userland utilities which directly use them---ndp(8), 962 rtadvd(8), and rtsold(8) in the base system---need to be updated 963 to r253970 or later. 964 96520130802: 966 find -delete can now delete the pathnames given as arguments, 967 instead of only files found below them or if the pathname did 968 not contain any slashes. Formerly, the following error message 969 would result: 970 971 find: -delete: <path>: relative path potentially not safe 972 973 Deleting the pathnames given as arguments can be prevented 974 without error messages using -mindepth 1 or by changing 975 directory and passing "." as argument to find. This works in the 976 old as well as the new version of find. 977 97820130726: 979 Behavior of devfs rules path matching has been changed. 980 Pattern is now always matched against fully qualified devfs 981 path and slash characters must be explicitly matched by 982 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 983 subdirectories must be reviewed. 984 98520130716: 986 The default ARM ABI has changed to the ARM EABI. The old ABI is 987 incompatible with the ARM EABI and all programs and modules will 988 need to be rebuilt to work with a new kernel. 989 990 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 991 992 NOTE: Support for the old ABI will be removed in the future and 993 users are advised to upgrade. 994 99520130709: 996 pkg_install has been disconnected from the build if you really need it 997 you should add WITH_PKGTOOLS in your src.conf(5). 998 99920130709: 1000 Most of network statistics structures were changed to be able 1001 keep 64-bits counters. Thus all tools, that work with networking 1002 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1003 100420130618: 1005 Fix a bug that allowed a tracing process (e.g. gdb) to write 1006 to a memory-mapped file in the traced process's address space 1007 even if neither the traced process nor the tracing process had 1008 write access to that file. 1009 101020130615: 1011 CVS has been removed from the base system. An exact copy 1012 of the code is available from the devel/cvs port. 1013 101420130613: 1015 Some people report the following error after the switch to bmake: 1016 1017 make: illegal option -- J 1018 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1019 ... 1020 *** [buildworld] Error code 2 1021 1022 this likely due to an old instance of make in 1023 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1024 which src/Makefile will use that blindly, if it exists, so if 1025 you see the above error: 1026 1027 rm -rf `make -V MAKEPATH` 1028 1029 should resolve it. 1030 103120130516: 1032 Use bmake by default. 1033 Whereas before one could choose to build with bmake via 1034 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1035 make. The goal is to remove these knobs for 10-RELEASE. 1036 1037 It is worth noting that bmake (like gmake) treats the command 1038 line as the unit of failure, rather than statements within the 1039 command line. Thus '(cd some/where && dosomething)' is safer 1040 than 'cd some/where; dosomething'. The '()' allows consistent 1041 behavior in parallel build. 1042 104320130429: 1044 Fix a bug that allows NFS clients to issue READDIR on files. 1045 104620130426: 1047 The WITHOUT_IDEA option has been removed because 1048 the IDEA patent expired. 1049 105020130426: 1051 The sysctl which controls TRIM support under ZFS has been renamed 1052 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1053 enabled by default. 1054 105520130425: 1056 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1057 rather than creating it's own in the temporary directory in 1058 order allow access to bootstrapped versions of tools such as 1059 install and mtree. When upgrading from version of FreeBSD where 1060 the install command does not support -l, you will need to 1061 install a new mergemaster command if mergemaster -p is required. 1062 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1063 && make install). 1064 106520130404: 1066 Legacy ATA stack, disabled and replaced by new CAM-based one since 1067 FreeBSD 9.0, completely removed from the sources. Kernel modules 1068 atadisk and atapi*, user-level tools atacontrol and burncd are 1069 removed. Kernel option `options ATA_CAM` is now permanently enabled 1070 and removed. 1071 107220130319: 1073 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1074 and socketpair(2). Software, in particular Kerberos, may 1075 automatically detect and use these during building. The resulting 1076 binaries will not work on older kernels. 1077 107820130308: 1079 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1080 information, see the respective 20130304 entry). 1081 108220130304: 1083 Recent commits to callout(9) changed the size of struct callout, 1084 so the KBI is probably heavily disturbed. Also, some functions 1085 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1086 by macros. Every kernel module using it won't load, so rebuild 1087 is requested. 1088 1089 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1090 but does not initialize by default (because of the new CTL_DISABLE 1091 option) to save memory. To re-enable it, remove the CTL_DISABLE 1092 option from the kernel config file or set kern.cam.ctl.disable=0 1093 in /boot/loader.conf. 1094 109520130301: 1096 The ctl device has been disabled in GENERIC for i386 and amd64. 1097 This was done due to the extra memory being allocated at system 1098 initialisation time by the ctl driver which was only used if 1099 a CAM target device was created. This makes a FreeBSD system 1100 unusable on 128MB or less of RAM. 1101 110220130208: 1103 A new compression method (lz4) has been merged to -HEAD. Please 1104 refer to zpool-features(7) for more information. 1105 1106 Please refer to the "ZFS notes" section of this file for information 1107 on upgrading boot ZFS pools. 1108 110920130129: 1110 A BSD-licensed patch(1) variant has been added and is installed 1111 as bsdpatch, being the GNU version the default patch. 1112 To inverse the logic and use the BSD-licensed one as default, 1113 while having the GNU version installed as gnupatch, rebuild 1114 and install world with the WITH_BSD_PATCH knob set. 1115 111620130121: 1117 Due to the use of the new -l option to install(1) during build 1118 and install, you must take care not to directly set the INSTALL 1119 make variable in your /etc/make.conf, /etc/src.conf, or on the 1120 command line. If you wish to use the -C flag for all installs 1121 you may be able to add INSTALL+=-C to /etc/make.conf or 1122 /etc/src.conf. 1123 112420130118: 1125 The install(1) option -M has changed meaning and now takes an 1126 argument that is a file or path to append logs to. In the 1127 unlikely event that -M was the last option on the command line 1128 and the command line contained at least two files and a target 1129 directory the first file will have logs appended to it. The -M 1130 option served little practical purpose in the last decade so its 1131 use is expected to be extremely rare. 1132 113320121223: 1134 After switching to Clang as the default compiler some users of ZFS 1135 on i386 systems started to experience stack overflow kernel panics. 1136 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1137 113820121222: 1139 GEOM_LABEL now mangles label names read from file system metadata. 1140 Mangling affect labels containing spaces, non-printable characters, 1141 '%' or '"'. Device names in /etc/fstab and other places may need to 1142 be updated. 1143 114420121217: 1145 By default, only the 10 most recent kernel dumps will be saved. To 1146 restore the previous behaviour (no limit on the number of kernel dumps 1147 stored in the dump directory) add the following line to /etc/rc.conf: 1148 1149 savecore_flags="" 1150 115120121201: 1152 With the addition of auditdistd(8), a new auditdistd user is now 1153 required during installworld. "mergemaster -p" can be used to 1154 add the user prior to installworld, as documented in the handbook. 1155 115620121117: 1157 The sin6_scope_id member variable in struct sockaddr_in6 is now 1158 filled by the kernel before passing the structure to the userland via 1159 sysctl or routing socket. This means the KAME-specific embedded scope 1160 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1161 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1162 __FreeBSD_version is bumped to 1000025. 1163 116420121105: 1165 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1166 This means that the world and kernel will be compiled with clang 1167 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1168 and /usr/bin/cpp. To disable this behavior and revert to building 1169 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1170 of current may need to bootstrap WITHOUT_CLANG first if the clang 1171 build fails (its compatibility window doesn't extend to the 9 stable 1172 branch point). 1173 117420121102: 1175 The IPFIREWALL_FORWARD kernel option has been removed. Its 1176 functionality now turned on by default. 1177 117820121023: 1179 The ZERO_COPY_SOCKET kernel option has been removed and 1180 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1181 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1182 mechanism which is not safe and may result in kernel crashes. 1183 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1184 driver supports disposeable external page sized mbuf storage. 1185 Proper replacements for both zero-copy mechanisms are under 1186 consideration and will eventually lead to complete removal 1187 of the two kernel options. 1188 118920121023: 1190 The IPv4 network stack has been converted to network byte 1191 order. The following modules need to be recompiled together 1192 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1193 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1194 119520121022: 1196 Support for non-MPSAFE filesystems was removed from VFS. The 1197 VFS_VERSION was bumped, all filesystem modules shall be 1198 recompiled. 1199 120020121018: 1201 All the non-MPSAFE filesystems have been disconnected from 1202 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1203 portalfs, smbfs, xfs. 1204 120520121016: 1206 The interface cloning API and ABI has changed. The following 1207 modules need to be recompiled together with kernel: 1208 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1209 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1210 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1211 121220121015: 1213 The sdhci driver was split in two parts: sdhci (generic SD Host 1214 Controller logic) and sdhci_pci (actual hardware driver). 1215 No kernel config modifications are required, but if you 1216 load sdhc as a module you must switch to sdhci_pci instead. 1217 121820121014: 1219 Import the FUSE kernel and userland support into base system. 1220 122120121013: 1222 The GNU sort(1) program has been removed since the BSD-licensed 1223 sort(1) has been the default for quite some time and no serious 1224 problems have been reported. The corresponding WITH_GNU_SORT 1225 knob has also gone. 1226 122720121006: 1228 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1229 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1230 with new kernel. 1231 123220121001: 1233 The net80211(4) ABI has been changed to allow for improved driver 1234 PS-POLL and power-save support. All wireless drivers need to be 1235 recompiled to work with the new kernel. 1236 123720120913: 1238 The random(4) support for the VIA hardware random number 1239 generator (`PADLOCK') is no longer enabled unconditionally. 1240 Add the padlock_rng device in the custom kernel config if 1241 needed. The GENERIC kernels on i386 and amd64 do include the 1242 device, so the change only affects the custom kernel 1243 configurations. 1244 124520120908: 1246 The pf(4) packet filter ABI has been changed. pfctl(8) and 1247 snmp_pf module need to be recompiled to work with new kernel. 1248 124920120828: 1250 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1251 to -HEAD. Pools that have empty_bpobj in active state can not be 1252 imported read-write with ZFS implementations that do not support 1253 this feature. For more information read the zpool-features(5) 1254 manual page. 1255 125620120727: 1257 The sparc64 ZFS loader has been changed to no longer try to auto- 1258 detect ZFS providers based on diskN aliases but now requires these 1259 to be explicitly listed in the OFW boot-device environment variable. 1260 126120120712: 1262 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1263 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1264 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1265 126620120712: 1267 The following sysctls and tunables have been renamed for consistency 1268 with other variables: 1269 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1270 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1271 127220120628: 1273 The sort utility has been replaced with BSD sort. For now, GNU sort 1274 is also available as "gnusort" or the default can be set back to 1275 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1276 installed as "bsdsort". 1277 127820120611: 1279 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1280 Starting with this version the old system of ZFS pool versioning 1281 is superseded by "feature flags". This concept enables forward 1282 compatibility against certain future changes in functionality of ZFS 1283 pools. The first read-only compatible "feature flag" for ZFS pools 1284 is named "com.delphix:async_destroy". For more information 1285 read the new zpool-features(5) manual page. 1286 Please refer to the "ZFS notes" section of this file for information 1287 on upgrading boot ZFS pools. 1288 128920120417: 1290 The malloc(3) implementation embedded in libc now uses sources imported 1291 as contrib/jemalloc. The most disruptive API change is to 1292 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1293 delete it prior to installworld, and optionally re-create it using the 1294 new format after rebooting. See malloc.conf(5) for details 1295 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1296 NAMESPACE section). 1297 129820120328: 1299 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1300 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1301 now spelled mips. This is to aid compatibility with third-party 1302 software that expects this naming scheme in uname(3). Little-endian 1303 settings are unchanged. If you are updating a big-endian mips64 machine 1304 from before this change, you may need to set MACHINE_ARCH=mips64 in 1305 your environment before the new build system will recognize your machine. 1306 130720120306: 1308 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1309 platforms. 1310 131120120229: 1312 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1313 nullfs(5) did not pass through all behaviours to the underlying layer, 1314 as a result if we bound to a socket on the lower layer we could connect 1315 only to the lower path; if we bound to the upper layer we could connect 1316 only to the upper path. The new behavior is one can connect to both the 1317 lower and the upper paths regardless what layer path one binds to. 1318 131920120211: 1320 The getifaddrs upgrade path broken with 20111215 has been restored. 1321 If you have upgraded in between 20111215 and 20120209 you need to 1322 recompile libc again with your kernel. You still need to recompile 1323 world to be able to configure CARP but this restriction already 1324 comes from 20111215. 1325 132620120114: 1327 The set_rcvar() function has been removed from /etc/rc.subr. All 1328 base and ports rc.d scripts have been updated, so if you have a 1329 port installed with a script in /usr/local/etc/rc.d you can either 1330 hand-edit the rcvar= line, or reinstall the port. 1331 1332 An easy way to handle the mass-update of /etc/rc.d: 1333 rm /etc/rc.d/* && mergemaster -i 1334 133520120109: 1336 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1337 on the current CPU and prevents other threads from running. 1338 This behavior can be reverted using the kern.stop_scheduler_on_panic 1339 tunable/sysctl. 1340 The new behavior can be incompatible with kern.sync_on_panic. 1341 134220111215: 1343 The carp(4) facility has been changed significantly. Configuration 1344 of the CARP protocol via ifconfig(8) has changed, as well as format 1345 of CARP events submitted to devd(8) has changed. See manual pages 1346 for more information. The arpbalance feature of carp(4) is currently 1347 not supported anymore. 1348 1349 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1350 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1351 need to be recompiled. 1352 135320111122: 1354 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1355 /dev/wmistat0. 1356 135720111108: 1358 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1359 explicitely support non-MPSAFE filesystems. 1360 It is on by default for all supported platform at this present 1361 time. 1362 136320111101: 1364 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1365 i386 and pc98 GENERIC kernel configuration files. 1366 136720110930: 1368 sysinstall has been removed 1369 137020110923: 1371 The stable/9 branch created in subversion. This corresponds to the 1372 RELENG_9 branch in CVS. 1373 1374COMMON ITEMS: 1375 1376 General Notes 1377 ------------- 1378 Avoid using make -j when upgrading. While generally safe, there are 1379 sometimes problems using -j to upgrade. If your upgrade fails with 1380 -j, please try again without -j. From time to time in the past there 1381 have been problems using -j with buildworld and/or installworld. This 1382 is especially true when upgrading between "distant" versions (eg one 1383 that cross a major release boundary or several minor releases, or when 1384 several months have passed on the -current branch). 1385 1386 Sometimes, obscure build problems are the result of environment 1387 poisoning. This can happen because the make utility reads its 1388 environment when searching for values for global variables. To run 1389 your build attempts in an "environmental clean room", prefix all make 1390 commands with 'env -i '. See the env(1) manual page for more details. 1391 1392 When upgrading from one major version to another it is generally best 1393 to upgrade to the latest code in the currently installed branch first, 1394 then do an upgrade to the new branch. This is the best-tested upgrade 1395 path, and has the highest probability of being successful. Please try 1396 this approach before reporting problems with a major version upgrade. 1397 1398 When upgrading a live system, having a root shell around before 1399 installing anything can help undo problems. Not having a root shell 1400 around can lead to problems if pam has changed too much from your 1401 starting point to allow continued authentication after the upgrade. 1402 1403 This file should be read as a log of events. When a later event changes 1404 information of a prior event, the prior event should not be deleted. 1405 Instead, a pointer to the entry with the new information should be 1406 placed in the old entry. Readers of this file should also sanity check 1407 older entries before relying on them blindly. Authors of new entries 1408 should write them with this in mind. 1409 1410 ZFS notes 1411 --------- 1412 When upgrading the boot ZFS pool to a new version, always follow 1413 these two steps: 1414 1415 1.) recompile and reinstall the ZFS boot loader and boot block 1416 (this is part of "make buildworld" and "make installworld") 1417 1418 2.) update the ZFS boot block on your boot drive 1419 1420 The following example updates the ZFS boot block on the first 1421 partition (freebsd-boot) of a GPT partitioned drive ada0: 1422 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1423 1424 Non-boot pools do not need these updates. 1425 1426 To build a kernel 1427 ----------------- 1428 If you are updating from a prior version of FreeBSD (even one just 1429 a few days old), you should follow this procedure. It is the most 1430 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1431 1432 make kernel-toolchain 1433 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1434 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1435 1436 To test a kernel once 1437 --------------------- 1438 If you just want to boot a kernel once (because you are not sure 1439 if it works, or if you want to boot a known bad kernel to provide 1440 debugging information) run 1441 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1442 nextboot -k testkernel 1443 1444 To just build a kernel when you know that it won't mess you up 1445 -------------------------------------------------------------- 1446 This assumes you are already running a CURRENT system. Replace 1447 ${arch} with the architecture of your machine (e.g. "i386", 1448 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1449 1450 cd src/sys/${arch}/conf 1451 config KERNEL_NAME_HERE 1452 cd ../compile/KERNEL_NAME_HERE 1453 make depend 1454 make 1455 make install 1456 1457 If this fails, go to the "To build a kernel" section. 1458 1459 To rebuild everything and install it on the current system. 1460 ----------------------------------------------------------- 1461 # Note: sometimes if you are running current you gotta do more than 1462 # is listed here if you are upgrading from a really old current. 1463 1464 <make sure you have good level 0 dumps> 1465 make buildworld 1466 make kernel KERNCONF=YOUR_KERNEL_HERE 1467 [1] 1468 <reboot in single user> [3] 1469 mergemaster -Fp [5] 1470 make installworld 1471 mergemaster -Fi [4] 1472 make delete-old [6] 1473 <reboot> 1474 1475 To cross-install current onto a separate partition 1476 -------------------------------------------------- 1477 # In this approach we use a separate partition to hold 1478 # current's root, 'usr', and 'var' directories. A partition 1479 # holding "/", "/usr" and "/var" should be about 2GB in 1480 # size. 1481 1482 <make sure you have good level 0 dumps> 1483 <boot into -stable> 1484 make buildworld 1485 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1486 <maybe newfs current's root partition> 1487 <mount current's root partition on directory ${CURRENT_ROOT}> 1488 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1489 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1490 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1491 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1492 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1493 <reboot into current> 1494 <do a "native" rebuild/install as described in the previous section> 1495 <maybe install compatibility libraries from ports/misc/compat*> 1496 <reboot> 1497 1498 1499 To upgrade in-place from stable to current 1500 ---------------------------------------------- 1501 <make sure you have good level 0 dumps> 1502 make buildworld [9] 1503 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 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 Make sure that you've read the UPDATING file to understand the 1513 tweaks to various things you need. At this point in the life 1514 cycle of current, things change often and you are on your own 1515 to cope. The defaults can also change, so please read ALL of 1516 the UPDATING entries. 1517 1518 Also, if you are tracking -current, you must be subscribed to 1519 freebsd-current@freebsd.org. Make sure that before you update 1520 your sources that you have read and understood all the recent 1521 messages there. If in doubt, please track -stable which has 1522 much fewer pitfalls. 1523 1524 [1] If you have third party modules, such as vmware, you 1525 should disable them at this point so they don't crash your 1526 system on reboot. 1527 1528 [3] From the bootblocks, boot -s, and then do 1529 fsck -p 1530 mount -u / 1531 mount -a 1532 cd src 1533 adjkerntz -i # if CMOS is wall time 1534 Also, when doing a major release upgrade, it is required that 1535 you boot into single user mode to do the installworld. 1536 1537 [4] Note: This step is non-optional. Failure to do this step 1538 can result in a significant reduction in the functionality of the 1539 system. Attempting to do it by hand is not recommended and those 1540 that pursue this avenue should read this file carefully, as well 1541 as the archives of freebsd-current and freebsd-hackers mailing lists 1542 for potential gotchas. The -U option is also useful to consider. 1543 See mergemaster(8) for more information. 1544 1545 [5] Usually this step is a noop. However, from time to time 1546 you may need to do this if you get unknown user in the following 1547 step. It never hurts to do it all the time. You may need to 1548 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1549 install) after the buildworld before this step if you last updated 1550 from current before 20130425 or from -stable before 20130430. 1551 1552 [6] This only deletes old files and directories. Old libraries 1553 can be deleted by "make delete-old-libs", but you have to make 1554 sure that no program is using those libraries anymore. 1555 1556 [8] In order to have a kernel that can run the 4.x binaries needed to 1557 do an installworld, you must include the COMPAT_FREEBSD4 option in 1558 your kernel. Failure to do so may leave you with a system that is 1559 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1560 required to run the 5.x binaries on more recent kernels. And so on 1561 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1562 1563 Make sure that you merge any new devices from GENERIC since the 1564 last time you updated your kernel config file. 1565 1566 [9] When checking out sources, you must include the -P flag to have 1567 cvs prune empty directories. 1568 1569 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1570 "?=" instead of the "=" assignment operator, so that buildworld can 1571 override the CPUTYPE if it needs to. 1572 1573 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1574 not on the command line, or in /etc/make.conf. buildworld will 1575 warn if it is improperly defined. 1576FORMAT: 1577 1578This file contains a list, in reverse chronological order, of major 1579breakages in tracking -current. It is not guaranteed to be a complete 1580list of such breakages, and only contains entries since September 23, 2011. 1581If you need to see UPDATING entries from before that date, you will need 1582to fetch an UPDATING file from an older FreeBSD release. 1583 1584Copyright information: 1585 1586Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1587 1588Redistribution, publication, translation and use, with or without 1589modification, in full or in part, in any form or format of this 1590document are permitted without further permission from the author. 1591 1592THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1593IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1594WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1595DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1596INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1597(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1598SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1599HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1600STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1601IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1602POSSIBILITY OF SUCH DAMAGE. 1603 1604Contact Warner Losh if you have any questions about your use of 1605this document. 1606 1607$FreeBSD: stable/11/UPDATING 302410 2016-07-08 00:22:14Z gjb $ 1608