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 from 17older version of current across the gcc/clang cutover is a bit fragile. 18 19NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: 20 FreeBSD 11.x has many debugging features turned on, in both the kernel 21 and userland. These features attempt to detect incorrect use of 22 system primitives, and encourage loud failure through extra sanity 23 checking and fail stop semantics. They also substantially impact 24 system performance. If you want to do performance measurement, 25 benchmarking, and optimization, you'll want to turn them off. This 26 includes various WITNESS- related kernel options, INVARIANTS, malloc 27 debugging flags in userland, and various verbose features in the 28 kernel. Many developers choose to disable these features on build 29 machines to maximize performance. (To completely disable malloc 30 debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely 31 disable the most expensive debugging functionality run 32 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 33 3420141121: 35 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 36 directories to top level SUBDIR variable when their parent 37 directory is included in LOCAL_DIRS. Users with build systems with 38 such hierarchies and without SUBDIR entries in the parent 39 directory Makefiles should add them or add the directories to 40 LOCAL_DIRS. 41 4220141109: 43 faith(4) and faithd(8) has been removed from base system. It 44 has been obsolete for a very long time. 45 4620141104: 47 vt(4), the new console driver, is enabled by default. It brings 48 support for Unicode and double-width characters, as well as 49 support for UEFI and integration with the KMS kernel video 50 drivers. 51 52 You may need to update your console settings in /etc/rc.conf, 53 most probably the keymap. During boot, /etc/rc.d/syscons will 54 indicate what you need to do. 55 56 vt(4) still has issues and lacks some features compared to 57 syscons(4). See the wiki for up-to-date information: 58 https://wiki.freebsd.org/Newcons 59 60 If you want to keep using syscons(4), you can do so by adding 61 the following line to /boot/loader.conf: 62 kern.vty=sc 63 6420141102: 65 pjdfstest has been integrated into kyua as an opt-in test suite. 66 Please see share/doc/pjdfstest/README for a more details on how to 67 execute it. 68 6920141009: 70 gperf has been removed from the base system for architectures 71 that use clang. Ports that require gperf will obtain it from the 72 devel/gperf port. 73 7420140923: 75 pjdfstest has been moved from tools/regression/pjdfstest to 76 contrib/pjdfstest . 77 7820140922: 79 At svn r271982, The default linux compat kernel ABI has been adjusted 80 to 2.6.18 in support of the linux-c6 compat ports infrastructure 81 update. If you wish to continue using the linux-f10 compat ports, 82 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 83 encouraged to update their linux-compat packages to linux-c6 during 84 their next update cycle. 85 8620140729: 87 The ofwfb driver, used to provide a graphics console on PowerPC when 88 using vt(4), no longer allows mmap() of all of physical memory. This 89 will prevent Xorg on PowerPC with some ATI graphics cards from 90 initializing properly unless x11-servers/xorg-server is updated to 91 1.12.4_8 or newer. 92 9320140723: 94 The xdev targets have been converted to using TARGET and 95 TARGET_ARCH instead of XDEV and XDEV_ARCH. 96 9720140719: 98 The default unbound configuration has been modified to address 99 issues with reverse lookups on networks that use private 100 address ranges. If you use the local_unbound service, run 101 "service local_unbound setup" as root to regenerate your 102 configuration, then "service local_unbound reload" to load the 103 new configuration. 104 10520140709: 106 The GNU texinfo and GNU info pages are not built and installed 107 anymore, WITH_INFO knob has been added to allow to built and install 108 them again. 109 11020140708: 111 The GNU readline library is now an INTERNALLIB - that is, it is 112 statically linked into consumers (GDB and variants) in the base 113 system, and the shared library is no longer installed. The 114 devel/readline port is available for third party software that 115 requires readline. 116 11720140702: 118 The Itanium architecture (ia64) has been removed from the list of 119 known architectures. This is the first step in the removal of the 120 architecture. 121 12220140701: 123 Commit r268115 has added NFSv4.1 server support, merged from 124 projects/nfsv4.1-server. Since this includes changes to the 125 internal interfaces between the NFS related modules, a full 126 build of the kernel and modules will be necessary. 127 __FreeBSD_version has been bumped. 128 12920140629: 130 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 131 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 132 which differs from the behaviour controlled by this knob.) 133 13420140619: 135 Maximal length of the serial number in CTL was increased from 16 to 136 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 137 and ctld, need to be rebuilt to work with a new kernel. 138 13920140606: 140 The libatf-c and libatf-c++ major versions were downgraded to 0 and 141 1 respectively to match the upstream numbers. They were out of 142 sync because, when they were originally added to FreeBSD, the 143 upstream versions were not respected. These libraries are private 144 and not yet built by default, so renumbering them should be a 145 non-issue. However, unclean source trees will yield broken test 146 programs once the operator executes "make delete-old-libs" after a 147 "make installworld". 148 149 Additionally, the atf-sh binary was made private by moving it into 150 /usr/libexec/. Already-built shell test programs will keep the 151 path to the old binary so they will break after "make delete-old" 152 is run. 153 154 If you are using WITH_TESTS=yes (not the default), wipe the object 155 tree and rebuild from scratch to prevent spurious test failures. 156 This is only needed once: the misnumbered libraries and misplaced 157 binaries have been added to OptionalObsoleteFiles.inc so they will 158 be removed during a clean upgrade. 159 16020140512: 161 Clang and llvm have been upgraded to 3.4.1 release. 162 16320140508: 164 We bogusly installed src.opts.mk in /usr/share/mk. This file should 165 be removed to avoid issues in the future (and has been added to 166 ObsoleteFiles.inc). 167 16820140505: 169 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 170 past, it affected all builds that used the bsd.*.mk files. The old 171 behavior was a bug, but people may have relied upon it. To get this 172 behavior back, you can .include /etc/src.conf from /etc/make.conf 173 (which is still global and isn't changed). This also changes the 174 behavior of incremental builds inside the tree of individual 175 directories. Set MAKESYSPATH to ".../share/mk" to do that. 176 Although this has survived make universe and some upgrade scenarios, 177 other upgrade scenarios may have broken. At least one form of 178 temporary breakage was fixed with MAKESYSPATH settings for buildworld 179 as well... In cases where MAKESYSPATH isn't working with this 180 setting, you'll need to set it to the full path to your tree. 181 182 One side effect of all this cleaning up is that bsd.compiler.mk 183 is no longer implicitly included by bsd.own.mk. If you wish to 184 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 185 as well. 186 18720140430: 188 The lindev device has been removed since /dev/full has been made a 189 standard device. __FreeBSD_version has been bumped. 190 19120140418: 192 The YES_HESIOD knob has been removed. It has been obsolete for 193 a decade. Please move to using WITH_HESIOD instead or your builds 194 will silently lack HESIOD. 195 19620140405: 197 The uart(4) driver has been changed with respect to its handling 198 of the low-level console. Previously the uart(4) driver prevented 199 any process from changing the baudrate or the CLOCAL and HUPCL 200 control flags. By removing the restrictions, operators can make 201 changes to the serial console port without having to reboot. 202 However, when getty(8) is started on the serial device that is 203 associated with the low-level console, a misconfigured terminal 204 line in /etc/ttys will now have a real impact. 205 Before upgrading the kernel, make sure that /etc/ttys has the 206 serial console device configured as 3wire without baudrate to 207 preserve the previous behaviour. E.g: 208 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 209 21020140306: 211 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 212 to improve performance. To re-enable it, if needed, run rpcbind 213 with command line option -W. 214 21520140226: 216 Switched back to the GPL dtc compiler due to updates in the upstream 217 dts files not being supported by the BSDL dtc compiler. You will need 218 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 219 may result while building dtb files during a kernel build if you fail 220 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 221 22220140216: 223 Clang and llvm have been upgraded to 3.4 release. 224 22520140216: 226 The nve(4) driver has been removed. Please use the nfe(4) driver 227 for NVIDIA nForce MCP Ethernet adapters instead. 228 22920140212: 230 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 231 This could cause certain C++ applications using shared libraries built 232 against the previous version of libc++ to crash. The incompatibility 233 has now been fixed, but any C++ applications or shared libraries built 234 between r261283 and r261801 should be recompiled. 235 23620140204: 237 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 238 capability mode support. Please note that enabling the feature in 239 kernel is still highly recommended. 240 24120140131: 242 OpenSSH is now built with sandbox support, and will use sandbox as 243 the default privilege separation method. This requires Capsicum 244 capability mode support in kernel. 245 24620140128: 247 The libelf and libdwarf libraries have been updated to newer 248 versions from upstream. Shared library version numbers for 249 these two libraries were bumped. Any ports or binaries 250 requiring these two libraries should be recompiled. 251 __FreeBSD_version is bumped to 1100006. 252 25320140110: 254 If a Makefile in a tests/ directory was auto-generating a Kyuafile 255 instead of providing an explicit one, this would prevent such 256 Makefile from providing its own Kyuafile in the future during 257 NO_CLEAN builds. This has been fixed in the Makefiles but manual 258 intervention is needed to clean an objdir if you use NO_CLEAN: 259 # find /usr/obj -name Kyuafile | xargs rm -f 260 26120131213: 262 The behavior of gss_pseudo_random() for the krb5 mechanism 263 has changed, for applications requesting a longer random string 264 than produced by the underlying enctype's pseudo-random() function. 265 In particular, the random string produced from a session key of 266 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 267 be different at the 17th octet and later, after this change. 268 The counter used in the PRF+ construction is now encoded as a 269 big-endian integer in accordance with RFC 4402. 270 __FreeBSD_version is bumped to 1100004. 271 27220131108: 273 The WITHOUT_ATF build knob has been removed and its functionality 274 has been subsumed into the more generic WITHOUT_TESTS. If you were 275 using the former to disable the build of the ATF libraries, you 276 should change your settings to use the latter. 277 27820131025: 279 The default version of mtree is nmtree which is obtained from 280 NetBSD. The output is generally the same, but may vary 281 slightly. If you found you need identical output adding 282 "-F freebsd9" to the command line should do the trick. For the 283 time being, the old mtree is available as fmtree. 284 28520131014: 286 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 287 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 288 1.1.4_8 and verify bsdyml not linked in, before running "make 289 delete-old-libs": 290 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 291 or 292 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 293 29420131010: 295 The rc.d/jail script has been updated to support jail(8) 296 configuration file. The "jail_<jname>_*" rc.conf(5) variables 297 for per-jail configuration are automatically converted to 298 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 299 This is transparently backward compatible. See below about some 300 incompatibilities and rc.conf(5) manual page for more details. 301 302 These variables are now deprecated in favor of jail(8) configuration 303 file. One can use "rc.d/jail config <jname>" command to generate 304 a jail(8) configuration file in /var/run/jail.<jname>.conf without 305 running the jail(8) utility. The default pathname of the 306 configuration file is /etc/jail.conf and can be specified by 307 using $jail_conf or $jail_<jname>_conf variables. 308 309 Please note that jail_devfs_ruleset accepts an integer at 310 this moment. Please consider to rewrite the ruleset name 311 with an integer. 312 31320130930: 314 BIND has been removed from the base system. If all you need 315 is a local resolver, simply enable and start the local_unbound 316 service instead. Otherwise, several versions of BIND are 317 available in the ports tree. The dns/bind99 port is one example. 318 319 With this change, nslookup(1) and dig(1) are no longer in the base 320 system. Users should instead use host(1) and drill(1) which are 321 in the base system. Alternatively, nslookup and dig can 322 be obtained by installing the dns/bind-tools port. 323 32420130916: 325 With the addition of unbound(8), a new unbound user is now 326 required during installworld. "mergemaster -p" can be used to 327 add the user prior to installworld, as documented in the handbook. 328 32920130911: 330 OpenSSH is now built with DNSSEC support, and will by default 331 silently trust signed SSHFP records. This can be controlled with 332 the VerifyHostKeyDNS client configuration setting. DNSSEC support 333 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 334 33520130906: 336 The GNU Compiler Collection and C++ standard library (libstdc++) 337 are no longer built by default on platforms where clang is the system 338 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 339 options in src.conf. 340 34120130905: 342 The PROCDESC kernel option is now part of the GENERIC kernel 343 configuration and is required for the rwhod(8) to work. 344 If you are using custom kernel configuration, you should include 345 'options PROCDESC'. 346 34720130905: 348 The API and ABI related to the Capsicum framework was modified 349 in backward incompatible way. The userland libraries and programs 350 have to be recompiled to work with the new kernel. This includes the 351 following libraries and programs, but the whole buildworld is 352 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 353 kdump, procstat, rwho, rwhod, uniq. 354 35520130903: 356 AES-NI intrinsic support has been added to gcc. The AES-NI module 357 has been updated to use this support. A new gcc is required to build 358 the aesni module on both i386 and amd64. 359 36020130821: 361 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 362 Thus "device padlock_rng" and "device rdrand_rng" should be 363 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 364 36520130813: 366 WITH_ICONV has been split into two feature sets. WITH_ICONV now 367 enables just the iconv* functionality and is now on by default. 368 WITH_LIBICONV_COMPAT enables the libiconv api and link time 369 compatability. Set WITHOUT_ICONV to build the old way. 370 If you have been using WITH_ICONV before, you will very likely 371 need to turn on WITH_LIBICONV_COMPAT. 372 37320130806: 374 INVARIANTS option now enables DEBUG for code with OpenSolaris and 375 Illumos origin, including ZFS. If you have INVARIANTS in your 376 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 377 explicitly. 378 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 379 locks if WITNESS option was set. Because that generated a lot of 380 witness(9) reports and all of them were believed to be false 381 positives, this is no longer done. New option OPENSOLARIS_WITNESS 382 can be used to achieve the previous behavior. 383 38420130806: 385 Timer values in IPv6 data structures now use time_uptime instead 386 of time_second. Although this is not a user-visible functional 387 change, userland utilities which directly use them---ndp(8), 388 rtadvd(8), and rtsold(8) in the base system---need to be updated 389 to r253970 or later. 390 39120130802: 392 find -delete can now delete the pathnames given as arguments, 393 instead of only files found below them or if the pathname did 394 not contain any slashes. Formerly, the following error message 395 would result: 396 397 find: -delete: <path>: relative path potentially not safe 398 399 Deleting the pathnames given as arguments can be prevented 400 without error messages using -mindepth 1 or by changing 401 directory and passing "." as argument to find. This works in the 402 old as well as the new version of find. 403 40420130726: 405 Behavior of devfs rules path matching has been changed. 406 Pattern is now always matched against fully qualified devfs 407 path and slash characters must be explicitly matched by 408 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 409 subdirectories must be reviewed. 410 41120130716: 412 The default ARM ABI has changed to the ARM EABI. The old ABI is 413 incompatible with the ARM EABI and all programs and modules will 414 need to be rebuilt to work with a new kernel. 415 416 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 417 418 NOTE: Support for the old ABI will be removed in the future and 419 users are advised to upgrade. 420 42120130709: 422 pkg_install has been disconnected from the build if you really need it 423 you should add WITH_PKGTOOLS in your src.conf(5). 424 42520130709: 426 Most of network statistics structures were changed to be able 427 keep 64-bits counters. Thus all tools, that work with networking 428 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 429 43020130629: 431 Fix targets that run multiple make's to use && rather than ; 432 so that subsequent steps depend on success of previous. 433 434 NOTE: if building 'universe' with -j* on stable/8 or stable/9 435 it would be better to start the build using bmake, to avoid 436 overloading the machine. 437 43820130618: 439 Fix a bug that allowed a tracing process (e.g. gdb) to write 440 to a memory-mapped file in the traced process's address space 441 even if neither the traced process nor the tracing process had 442 write access to that file. 443 44420130615: 445 CVS has been removed from the base system. An exact copy 446 of the code is available from the devel/cvs port. 447 44820130613: 449 Some people report the following error after the switch to bmake: 450 451 make: illegal option -- J 452 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 453 ... 454 *** [buildworld] Error code 2 455 456 this likely due to an old instance of make in 457 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 458 which src/Makefile will use that blindly, if it exists, so if 459 you see the above error: 460 461 rm -rf `make -V MAKEPATH` 462 463 should resolve it. 464 46520130516: 466 Use bmake by default. 467 Whereas before one could choose to build with bmake via 468 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 469 make. The goal is to remove these knobs for 10-RELEASE. 470 471 It is worth noting that bmake (like gmake) treats the command 472 line as the unit of failure, rather than statements within the 473 command line. Thus '(cd some/where && dosomething)' is safer 474 than 'cd some/where; dosomething'. The '()' allows consistent 475 behavior in parallel build. 476 47720130429: 478 Fix a bug that allows NFS clients to issue READDIR on files. 479 48020130426: 481 The WITHOUT_IDEA option has been removed because 482 the IDEA patent expired. 483 48420130426: 485 The sysctl which controls TRIM support under ZFS has been renamed 486 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 487 enabled by default. 488 48920130425: 490 The mergemaster command now uses the default MAKEOBJDIRPREFIX 491 rather than creating it's own in the temporary directory in 492 order allow access to bootstrapped versions of tools such as 493 install and mtree. When upgrading from version of FreeBSD where 494 the install command does not support -l, you will need to 495 install a new mergemaster command if mergemaster -p is required. 496 This can be accomplished with the command (cd src/usr.sbin/mergemaster 497 && make install). 498 49920130404: 500 Legacy ATA stack, disabled and replaced by new CAM-based one since 501 FreeBSD 9.0, completely removed from the sources. Kernel modules 502 atadisk and atapi*, user-level tools atacontrol and burncd are 503 removed. Kernel option `options ATA_CAM` is now permanently enabled 504 and removed. 505 50620130319: 507 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 508 and socketpair(2). Software, in particular Kerberos, may 509 automatically detect and use these during building. The resulting 510 binaries will not work on older kernels. 511 51220130308: 513 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 514 information, see the respective 20130304 entry). 515 51620130304: 517 Recent commits to callout(9) changed the size of struct callout, 518 so the KBI is probably heavily disturbed. Also, some functions 519 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 520 by macros. Every kernel module using it won't load, so rebuild 521 is requested. 522 523 The ctl device has been re-enabled in GENERIC for i386 and amd64, 524 but does not initialize by default (because of the new CTL_DISABLE 525 option) to save memory. To re-enable it, remove the CTL_DISABLE 526 option from the kernel config file or set kern.cam.ctl.disable=0 527 in /boot/loader.conf. 528 52920130301: 530 The ctl device has been disabled in GENERIC for i386 and amd64. 531 This was done due to the extra memory being allocated at system 532 initialisation time by the ctl driver which was only used if 533 a CAM target device was created. This makes a FreeBSD system 534 unusable on 128MB or less of RAM. 535 53620130208: 537 A new compression method (lz4) has been merged to -HEAD. Please 538 refer to zpool-features(7) for more information. 539 540 Please refer to the "ZFS notes" section of this file for information 541 on upgrading boot ZFS pools. 542 54320130129: 544 A BSD-licensed patch(1) variant has been added and is installed 545 as bsdpatch, being the GNU version the default patch. 546 To inverse the logic and use the BSD-licensed one as default, 547 while having the GNU version installed as gnupatch, rebuild 548 and install world with the WITH_BSD_PATCH knob set. 549 55020130121: 551 Due to the use of the new -l option to install(1) during build 552 and install, you must take care not to directly set the INSTALL 553 make variable in your /etc/make.conf, /etc/src.conf, or on the 554 command line. If you wish to use the -C flag for all installs 555 you may be able to add INSTALL+=-C to /etc/make.conf or 556 /etc/src.conf. 557 55820130118: 559 The install(1) option -M has changed meaning and now takes an 560 argument that is a file or path to append logs to. In the 561 unlikely event that -M was the last option on the command line 562 and the command line contained at least two files and a target 563 directory the first file will have logs appended to it. The -M 564 option served little practical purpose in the last decade so its 565 use is expected to be extremely rare. 566 56720121223: 568 After switching to Clang as the default compiler some users of ZFS 569 on i386 systems started to experience stack overflow kernel panics. 570 Please consider using 'options KSTACK_PAGES=4' in such configurations. 571 57220121222: 573 GEOM_LABEL now mangles label names read from file system metadata. 574 Mangling affect labels containing spaces, non-printable characters, 575 '%' or '"'. Device names in /etc/fstab and other places may need to 576 be updated. 577 57820121217: 579 By default, only the 10 most recent kernel dumps will be saved. To 580 restore the previous behaviour (no limit on the number of kernel dumps 581 stored in the dump directory) add the following line to /etc/rc.conf: 582 583 savecore_flags="" 584 58520121201: 586 With the addition of auditdistd(8), a new auditdistd user is now 587 required during installworld. "mergemaster -p" can be used to 588 add the user prior to installworld, as documented in the handbook. 589 59020121117: 591 The sin6_scope_id member variable in struct sockaddr_in6 is now 592 filled by the kernel before passing the structure to the userland via 593 sysctl or routing socket. This means the KAME-specific embedded scope 594 id in sin6_addr.s6_addr[2] is always cleared in userland application. 595 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 596 __FreeBSD_version is bumped to 1000025. 597 59820121105: 599 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 600 This means that the world and kernel will be compiled with clang 601 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 602 and /usr/bin/cpp. To disable this behavior and revert to building 603 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 604 of current may need to bootstrap WITHOUT_CLANG first if the clang 605 build fails (its compatibility window doesn't extend to the 9 stable 606 branch point). 607 60820121102: 609 The IPFIREWALL_FORWARD kernel option has been removed. Its 610 functionality now turned on by default. 611 61220121023: 613 The ZERO_COPY_SOCKET kernel option has been removed and 614 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 615 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 616 mechanism which is not safe and may result in kernel crashes. 617 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 618 driver supports disposeable external page sized mbuf storage. 619 Proper replacements for both zero-copy mechanisms are under 620 consideration and will eventually lead to complete removal 621 of the two kernel options. 622 62320121023: 624 The IPv4 network stack has been converted to network byte 625 order. The following modules need to be recompiled together 626 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 627 pf(4), ipfw(4), ng_ipfw(4), stf(4). 628 62920121022: 630 Support for non-MPSAFE filesystems was removed from VFS. The 631 VFS_VERSION was bumped, all filesystem modules shall be 632 recompiled. 633 63420121018: 635 All the non-MPSAFE filesystems have been disconnected from 636 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 637 portalfs, smbfs, xfs. 638 63920121016: 640 The interface cloning API and ABI has changed. The following 641 modules need to be recompiled together with kernel: 642 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 643 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 644 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 645 64620121015: 647 The sdhci driver was split in two parts: sdhci (generic SD Host 648 Controller logic) and sdhci_pci (actual hardware driver). 649 No kernel config modifications are required, but if you 650 load sdhc as a module you must switch to sdhci_pci instead. 651 65220121014: 653 Import the FUSE kernel and userland support into base system. 654 65520121013: 656 The GNU sort(1) program has been removed since the BSD-licensed 657 sort(1) has been the default for quite some time and no serious 658 problems have been reported. The corresponding WITH_GNU_SORT 659 knob has also gone. 660 66120121006: 662 The pfil(9) API/ABI for AF_INET family has been changed. Packet 663 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 664 with new kernel. 665 66620121001: 667 The net80211(4) ABI has been changed to allow for improved driver 668 PS-POLL and power-save support. All wireless drivers need to be 669 recompiled to work with the new kernel. 670 67120120913: 672 The random(4) support for the VIA hardware random number 673 generator (`PADLOCK') is no longer enabled unconditionally. 674 Add the padlock_rng device in the custom kernel config if 675 needed. The GENERIC kernels on i386 and amd64 do include the 676 device, so the change only affects the custom kernel 677 configurations. 678 67920120908: 680 The pf(4) packet filter ABI has been changed. pfctl(8) and 681 snmp_pf module need to be recompiled to work with new kernel. 682 68320120828: 684 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 685 to -HEAD. Pools that have empty_bpobj in active state can not be 686 imported read-write with ZFS implementations that do not support 687 this feature. For more information read the zpool-features(5) 688 manual page. 689 69020120727: 691 The sparc64 ZFS loader has been changed to no longer try to auto- 692 detect ZFS providers based on diskN aliases but now requires these 693 to be explicitly listed in the OFW boot-device environment variable. 694 69520120712: 696 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 697 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 698 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 699 70020120712: 701 The following sysctls and tunables have been renamed for consistency 702 with other variables: 703 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 704 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 705 70620120628: 707 The sort utility has been replaced with BSD sort. For now, GNU sort 708 is also available as "gnusort" or the default can be set back to 709 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 710 installed as "bsdsort". 711 71220120611: 713 A new version of ZFS (pool version 5000) has been merged to -HEAD. 714 Starting with this version the old system of ZFS pool versioning 715 is superseded by "feature flags". This concept enables forward 716 compatibility against certain future changes in functionality of ZFS 717 pools. The first read-only compatible "feature flag" for ZFS pools 718 is named "com.delphix:async_destroy". For more information 719 read the new zpool-features(5) manual page. 720 Please refer to the "ZFS notes" section of this file for information 721 on upgrading boot ZFS pools. 722 72320120417: 724 The malloc(3) implementation embedded in libc now uses sources imported 725 as contrib/jemalloc. The most disruptive API change is to 726 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 727 delete it prior to installworld, and optionally re-create it using the 728 new format after rebooting. See malloc.conf(5) for details 729 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 730 NAMESPACE section). 731 73220120328: 733 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 734 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 735 now spelled mips. This is to aid compatibility with third-party 736 software that expects this naming scheme in uname(3). Little-endian 737 settings are unchanged. If you are updating a big-endian mips64 machine 738 from before this change, you may need to set MACHINE_ARCH=mips64 in 739 your environment before the new build system will recognize your machine. 740 74120120306: 742 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 743 platforms. 744 74520120229: 746 Now unix domain sockets behave "as expected" on nullfs(5). Previously 747 nullfs(5) did not pass through all behaviours to the underlying layer, 748 as a result if we bound to a socket on the lower layer we could connect 749 only to the lower path; if we bound to the upper layer we could connect 750 only to the upper path. The new behavior is one can connect to both the 751 lower and the upper paths regardless what layer path one binds to. 752 75320120211: 754 The getifaddrs upgrade path broken with 20111215 has been restored. 755 If you have upgraded in between 20111215 and 20120209 you need to 756 recompile libc again with your kernel. You still need to recompile 757 world to be able to configure CARP but this restriction already 758 comes from 20111215. 759 76020120114: 761 The set_rcvar() function has been removed from /etc/rc.subr. All 762 base and ports rc.d scripts have been updated, so if you have a 763 port installed with a script in /usr/local/etc/rc.d you can either 764 hand-edit the rcvar= line, or reinstall the port. 765 766 An easy way to handle the mass-update of /etc/rc.d: 767 rm /etc/rc.d/* && mergemaster -i 768 76920120109: 770 panic(9) now stops other CPUs in the SMP systems, disables interrupts 771 on the current CPU and prevents other threads from running. 772 This behavior can be reverted using the kern.stop_scheduler_on_panic 773 tunable/sysctl. 774 The new behavior can be incompatible with kern.sync_on_panic. 775 77620111215: 777 The carp(4) facility has been changed significantly. Configuration 778 of the CARP protocol via ifconfig(8) has changed, as well as format 779 of CARP events submitted to devd(8) has changed. See manual pages 780 for more information. The arpbalance feature of carp(4) is currently 781 not supported anymore. 782 783 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 784 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 785 need to be recompiled. 786 78720111122: 788 The acpi_wmi(4) status device /dev/wmistat has been renamed to 789 /dev/wmistat0. 790 79120111108: 792 The option VFS_ALLOW_NONMPSAFE option has been added in order to 793 explicitely support non-MPSAFE filesystems. 794 It is on by default for all supported platform at this present 795 time. 796 79720111101: 798 The broken amd(4) driver has been replaced with esp(4) in the amd64, 799 i386 and pc98 GENERIC kernel configuration files. 800 80120110930: 802 sysinstall has been removed 803 80420110923: 805 The stable/9 branch created in subversion. This corresponds to the 806 RELENG_9 branch in CVS. 807 808COMMON ITEMS: 809 810 General Notes 811 ------------- 812 Avoid using make -j when upgrading. While generally safe, there are 813 sometimes problems using -j to upgrade. If your upgrade fails with 814 -j, please try again without -j. From time to time in the past there 815 have been problems using -j with buildworld and/or installworld. This 816 is especially true when upgrading between "distant" versions (eg one 817 that cross a major release boundary or several minor releases, or when 818 several months have passed on the -current branch). 819 820 Sometimes, obscure build problems are the result of environment 821 poisoning. This can happen because the make utility reads its 822 environment when searching for values for global variables. To run 823 your build attempts in an "environmental clean room", prefix all make 824 commands with 'env -i '. See the env(1) manual page for more details. 825 826 When upgrading from one major version to another it is generally best 827 to upgrade to the latest code in the currently installed branch first, 828 then do an upgrade to the new branch. This is the best-tested upgrade 829 path, and has the highest probability of being successful. Please try 830 this approach before reporting problems with a major version upgrade. 831 832 When upgrading a live system, having a root shell around before 833 installing anything can help undo problems. Not having a root shell 834 around can lead to problems if pam has changed too much from your 835 starting point to allow continued authentication after the upgrade. 836 837 ZFS notes 838 --------- 839 When upgrading the boot ZFS pool to a new version, always follow 840 these two steps: 841 842 1.) recompile and reinstall the ZFS boot loader and boot block 843 (this is part of "make buildworld" and "make installworld") 844 845 2.) update the ZFS boot block on your boot drive 846 847 The following example updates the ZFS boot block on the first 848 partition (freebsd-boot) of a GPT partitioned drive ada0: 849 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 850 851 Non-boot pools do not need these updates. 852 853 To build a kernel 854 ----------------- 855 If you are updating from a prior version of FreeBSD (even one just 856 a few days old), you should follow this procedure. It is the most 857 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 858 859 make kernel-toolchain 860 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 861 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 862 863 To test a kernel once 864 --------------------- 865 If you just want to boot a kernel once (because you are not sure 866 if it works, or if you want to boot a known bad kernel to provide 867 debugging information) run 868 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 869 nextboot -k testkernel 870 871 To just build a kernel when you know that it won't mess you up 872 -------------------------------------------------------------- 873 This assumes you are already running a CURRENT system. Replace 874 ${arch} with the architecture of your machine (e.g. "i386", 875 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 876 877 cd src/sys/${arch}/conf 878 config KERNEL_NAME_HERE 879 cd ../compile/KERNEL_NAME_HERE 880 make depend 881 make 882 make install 883 884 If this fails, go to the "To build a kernel" section. 885 886 To rebuild everything and install it on the current system. 887 ----------------------------------------------------------- 888 # Note: sometimes if you are running current you gotta do more than 889 # is listed here if you are upgrading from a really old current. 890 891 <make sure you have good level 0 dumps> 892 make buildworld 893 make kernel KERNCONF=YOUR_KERNEL_HERE 894 [1] 895 <reboot in single user> [3] 896 mergemaster -Fp [5] 897 make installworld 898 mergemaster -Fi [4] 899 make delete-old [6] 900 <reboot> 901 902 To cross-install current onto a separate partition 903 -------------------------------------------------- 904 # In this approach we use a separate partition to hold 905 # current's root, 'usr', and 'var' directories. A partition 906 # holding "/", "/usr" and "/var" should be about 2GB in 907 # size. 908 909 <make sure you have good level 0 dumps> 910 <boot into -stable> 911 make buildworld 912 make buildkernel KERNCONF=YOUR_KERNEL_HERE 913 <maybe newfs current's root partition> 914 <mount current's root partition on directory ${CURRENT_ROOT}> 915 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 916 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 917 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 918 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 919 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 920 <reboot into current> 921 <do a "native" rebuild/install as described in the previous section> 922 <maybe install compatibility libraries from ports/misc/compat*> 923 <reboot> 924 925 926 To upgrade in-place from stable to current 927 ---------------------------------------------- 928 <make sure you have good level 0 dumps> 929 make buildworld [9] 930 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 931 [1] 932 <reboot in single user> [3] 933 mergemaster -Fp [5] 934 make installworld 935 mergemaster -Fi [4] 936 make delete-old [6] 937 <reboot> 938 939 Make sure that you've read the UPDATING file to understand the 940 tweaks to various things you need. At this point in the life 941 cycle of current, things change often and you are on your own 942 to cope. The defaults can also change, so please read ALL of 943 the UPDATING entries. 944 945 Also, if you are tracking -current, you must be subscribed to 946 freebsd-current@freebsd.org. Make sure that before you update 947 your sources that you have read and understood all the recent 948 messages there. If in doubt, please track -stable which has 949 much fewer pitfalls. 950 951 [1] If you have third party modules, such as vmware, you 952 should disable them at this point so they don't crash your 953 system on reboot. 954 955 [3] From the bootblocks, boot -s, and then do 956 fsck -p 957 mount -u / 958 mount -a 959 cd src 960 adjkerntz -i # if CMOS is wall time 961 Also, when doing a major release upgrade, it is required that 962 you boot into single user mode to do the installworld. 963 964 [4] Note: This step is non-optional. Failure to do this step 965 can result in a significant reduction in the functionality of the 966 system. Attempting to do it by hand is not recommended and those 967 that pursue this avenue should read this file carefully, as well 968 as the archives of freebsd-current and freebsd-hackers mailing lists 969 for potential gotchas. The -U option is also useful to consider. 970 See mergemaster(8) for more information. 971 972 [5] Usually this step is a noop. However, from time to time 973 you may need to do this if you get unknown user in the following 974 step. It never hurts to do it all the time. You may need to 975 install a new mergemaster (cd src/usr.sbin/mergemaster && make 976 install) after the buildworld before this step if you last updated 977 from current before 20130425 or from -stable before 20130430. 978 979 [6] This only deletes old files and directories. Old libraries 980 can be deleted by "make delete-old-libs", but you have to make 981 sure that no program is using those libraries anymore. 982 983 [8] In order to have a kernel that can run the 4.x binaries needed to 984 do an installworld, you must include the COMPAT_FREEBSD4 option in 985 your kernel. Failure to do so may leave you with a system that is 986 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 987 required to run the 5.x binaries on more recent kernels. And so on 988 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 989 990 Make sure that you merge any new devices from GENERIC since the 991 last time you updated your kernel config file. 992 993 [9] When checking out sources, you must include the -P flag to have 994 cvs prune empty directories. 995 996 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 997 "?=" instead of the "=" assignment operator, so that buildworld can 998 override the CPUTYPE if it needs to. 999 1000 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1001 not on the command line, or in /etc/make.conf. buildworld will 1002 warn if it is improperly defined. 1003FORMAT: 1004 1005This file contains a list, in reverse chronological order, of major 1006breakages in tracking -current. It is not guaranteed to be a complete 1007list of such breakages, and only contains entries since October 10, 2007. 1008If you need to see UPDATING entries from before that date, you will need 1009to fetch an UPDATING file from an older FreeBSD release. 1010 1011Copyright information: 1012 1013Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1014 1015Redistribution, publication, translation and use, with or without 1016modification, in full or in part, in any form or format of this 1017document are permitted without further permission from the author. 1018 1019THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1020IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1021WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1022DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1023INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1024(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1025SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1026HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1027STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1028IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1029POSSIBILITY OF SUCH DAMAGE. 1030 1031Contact Warner Losh if you have any questions about your use of 1032this document. 1033 1034$FreeBSD$ 1035