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 3420141222: 35 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 36 kernel sources have been removed. The .h files remain, since some 37 utilities include them. This will need to be fixed later. 38 If "mount -t oldnfs ..." is attempted, it will fail. 39 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 40 the utilities will report errors. 41 4220141121: 43 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 44 directories to top level SUBDIR variable when their parent 45 directory is included in LOCAL_DIRS. Users with build systems with 46 such hierarchies and without SUBDIR entries in the parent 47 directory Makefiles should add them or add the directories to 48 LOCAL_DIRS. 49 5020141109: 51 faith(4) and faithd(8) has been removed from base system. It 52 has been obsolete for a very long time. 53 5420141104: 55 vt(4), the new console driver, is enabled by default. It brings 56 support for Unicode and double-width characters, as well as 57 support for UEFI and integration with the KMS kernel video 58 drivers. 59 60 You may need to update your console settings in /etc/rc.conf, 61 most probably the keymap. During boot, /etc/rc.d/syscons will 62 indicate what you need to do. 63 64 vt(4) still has issues and lacks some features compared to 65 syscons(4). See the wiki for up-to-date information: 66 https://wiki.freebsd.org/Newcons 67 68 If you want to keep using syscons(4), you can do so by adding 69 the following line to /boot/loader.conf: 70 kern.vty=sc 71 7220141102: 73 pjdfstest has been integrated into kyua as an opt-in test suite. 74 Please see share/doc/pjdfstest/README for a more details on how to 75 execute it. 76 7720141009: 78 gperf has been removed from the base system for architectures 79 that use clang. Ports that require gperf will obtain it from the 80 devel/gperf port. 81 8220140923: 83 pjdfstest has been moved from tools/regression/pjdfstest to 84 contrib/pjdfstest . 85 8620140922: 87 At svn r271982, The default linux compat kernel ABI has been adjusted 88 to 2.6.18 in support of the linux-c6 compat ports infrastructure 89 update. If you wish to continue using the linux-f10 compat ports, 90 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 91 encouraged to update their linux-compat packages to linux-c6 during 92 their next update cycle. 93 9420140729: 95 The ofwfb driver, used to provide a graphics console on PowerPC when 96 using vt(4), no longer allows mmap() of all of physical memory. This 97 will prevent Xorg on PowerPC with some ATI graphics cards from 98 initializing properly unless x11-servers/xorg-server is updated to 99 1.12.4_8 or newer. 100 10120140723: 102 The xdev targets have been converted to using TARGET and 103 TARGET_ARCH instead of XDEV and XDEV_ARCH. 104 10520140719: 106 The default unbound configuration has been modified to address 107 issues with reverse lookups on networks that use private 108 address ranges. If you use the local_unbound service, run 109 "service local_unbound setup" as root to regenerate your 110 configuration, then "service local_unbound reload" to load the 111 new configuration. 112 11320140709: 114 The GNU texinfo and GNU info pages are not built and installed 115 anymore, WITH_INFO knob has been added to allow to built and install 116 them again. 117 11820140708: 119 The GNU readline library is now an INTERNALLIB - that is, it is 120 statically linked into consumers (GDB and variants) in the base 121 system, and the shared library is no longer installed. The 122 devel/readline port is available for third party software that 123 requires readline. 124 12520140702: 126 The Itanium architecture (ia64) has been removed from the list of 127 known architectures. This is the first step in the removal of the 128 architecture. 129 13020140701: 131 Commit r268115 has added NFSv4.1 server support, merged from 132 projects/nfsv4.1-server. Since this includes changes to the 133 internal interfaces between the NFS related modules, a full 134 build of the kernel and modules will be necessary. 135 __FreeBSD_version has been bumped. 136 13720140629: 138 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 139 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 140 which differs from the behaviour controlled by this knob.) 141 14220140619: 143 Maximal length of the serial number in CTL was increased from 16 to 144 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 145 and ctld, need to be rebuilt to work with a new kernel. 146 14720140606: 148 The libatf-c and libatf-c++ major versions were downgraded to 0 and 149 1 respectively to match the upstream numbers. They were out of 150 sync because, when they were originally added to FreeBSD, the 151 upstream versions were not respected. These libraries are private 152 and not yet built by default, so renumbering them should be a 153 non-issue. However, unclean source trees will yield broken test 154 programs once the operator executes "make delete-old-libs" after a 155 "make installworld". 156 157 Additionally, the atf-sh binary was made private by moving it into 158 /usr/libexec/. Already-built shell test programs will keep the 159 path to the old binary so they will break after "make delete-old" 160 is run. 161 162 If you are using WITH_TESTS=yes (not the default), wipe the object 163 tree and rebuild from scratch to prevent spurious test failures. 164 This is only needed once: the misnumbered libraries and misplaced 165 binaries have been added to OptionalObsoleteFiles.inc so they will 166 be removed during a clean upgrade. 167 16820140512: 169 Clang and llvm have been upgraded to 3.4.1 release. 170 17120140508: 172 We bogusly installed src.opts.mk in /usr/share/mk. This file should 173 be removed to avoid issues in the future (and has been added to 174 ObsoleteFiles.inc). 175 17620140505: 177 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 178 past, it affected all builds that used the bsd.*.mk files. The old 179 behavior was a bug, but people may have relied upon it. To get this 180 behavior back, you can .include /etc/src.conf from /etc/make.conf 181 (which is still global and isn't changed). This also changes the 182 behavior of incremental builds inside the tree of individual 183 directories. Set MAKESYSPATH to ".../share/mk" to do that. 184 Although this has survived make universe and some upgrade scenarios, 185 other upgrade scenarios may have broken. At least one form of 186 temporary breakage was fixed with MAKESYSPATH settings for buildworld 187 as well... In cases where MAKESYSPATH isn't working with this 188 setting, you'll need to set it to the full path to your tree. 189 190 One side effect of all this cleaning up is that bsd.compiler.mk 191 is no longer implicitly included by bsd.own.mk. If you wish to 192 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 193 as well. 194 19520140430: 196 The lindev device has been removed since /dev/full has been made a 197 standard device. __FreeBSD_version has been bumped. 198 19920140418: 200 The YES_HESIOD knob has been removed. It has been obsolete for 201 a decade. Please move to using WITH_HESIOD instead or your builds 202 will silently lack HESIOD. 203 20420140405: 205 The uart(4) driver has been changed with respect to its handling 206 of the low-level console. Previously the uart(4) driver prevented 207 any process from changing the baudrate or the CLOCAL and HUPCL 208 control flags. By removing the restrictions, operators can make 209 changes to the serial console port without having to reboot. 210 However, when getty(8) is started on the serial device that is 211 associated with the low-level console, a misconfigured terminal 212 line in /etc/ttys will now have a real impact. 213 Before upgrading the kernel, make sure that /etc/ttys has the 214 serial console device configured as 3wire without baudrate to 215 preserve the previous behaviour. E.g: 216 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 217 21820140306: 219 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 220 to improve performance. To re-enable it, if needed, run rpcbind 221 with command line option -W. 222 22320140226: 224 Switched back to the GPL dtc compiler due to updates in the upstream 225 dts files not being supported by the BSDL dtc compiler. You will need 226 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 227 may result while building dtb files during a kernel build if you fail 228 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 229 23020140216: 231 Clang and llvm have been upgraded to 3.4 release. 232 23320140216: 234 The nve(4) driver has been removed. Please use the nfe(4) driver 235 for NVIDIA nForce MCP Ethernet adapters instead. 236 23720140212: 238 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 239 This could cause certain C++ applications using shared libraries built 240 against the previous version of libc++ to crash. The incompatibility 241 has now been fixed, but any C++ applications or shared libraries built 242 between r261283 and r261801 should be recompiled. 243 24420140204: 245 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 246 capability mode support. Please note that enabling the feature in 247 kernel is still highly recommended. 248 24920140131: 250 OpenSSH is now built with sandbox support, and will use sandbox as 251 the default privilege separation method. This requires Capsicum 252 capability mode support in kernel. 253 25420140128: 255 The libelf and libdwarf libraries have been updated to newer 256 versions from upstream. Shared library version numbers for 257 these two libraries were bumped. Any ports or binaries 258 requiring these two libraries should be recompiled. 259 __FreeBSD_version is bumped to 1100006. 260 26120140110: 262 If a Makefile in a tests/ directory was auto-generating a Kyuafile 263 instead of providing an explicit one, this would prevent such 264 Makefile from providing its own Kyuafile in the future during 265 NO_CLEAN builds. This has been fixed in the Makefiles but manual 266 intervention is needed to clean an objdir if you use NO_CLEAN: 267 # find /usr/obj -name Kyuafile | xargs rm -f 268 26920131213: 270 The behavior of gss_pseudo_random() for the krb5 mechanism 271 has changed, for applications requesting a longer random string 272 than produced by the underlying enctype's pseudo-random() function. 273 In particular, the random string produced from a session key of 274 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 275 be different at the 17th octet and later, after this change. 276 The counter used in the PRF+ construction is now encoded as a 277 big-endian integer in accordance with RFC 4402. 278 __FreeBSD_version is bumped to 1100004. 279 28020131108: 281 The WITHOUT_ATF build knob has been removed and its functionality 282 has been subsumed into the more generic WITHOUT_TESTS. If you were 283 using the former to disable the build of the ATF libraries, you 284 should change your settings to use the latter. 285 28620131025: 287 The default version of mtree is nmtree which is obtained from 288 NetBSD. The output is generally the same, but may vary 289 slightly. If you found you need identical output adding 290 "-F freebsd9" to the command line should do the trick. For the 291 time being, the old mtree is available as fmtree. 292 29320131014: 294 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 295 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 296 1.1.4_8 and verify bsdyml not linked in, before running "make 297 delete-old-libs": 298 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 299 or 300 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 301 30220131010: 303 The rc.d/jail script has been updated to support jail(8) 304 configuration file. The "jail_<jname>_*" rc.conf(5) variables 305 for per-jail configuration are automatically converted to 306 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 307 This is transparently backward compatible. See below about some 308 incompatibilities and rc.conf(5) manual page for more details. 309 310 These variables are now deprecated in favor of jail(8) configuration 311 file. One can use "rc.d/jail config <jname>" command to generate 312 a jail(8) configuration file in /var/run/jail.<jname>.conf without 313 running the jail(8) utility. The default pathname of the 314 configuration file is /etc/jail.conf and can be specified by 315 using $jail_conf or $jail_<jname>_conf variables. 316 317 Please note that jail_devfs_ruleset accepts an integer at 318 this moment. Please consider to rewrite the ruleset name 319 with an integer. 320 32120130930: 322 BIND has been removed from the base system. If all you need 323 is a local resolver, simply enable and start the local_unbound 324 service instead. Otherwise, several versions of BIND are 325 available in the ports tree. The dns/bind99 port is one example. 326 327 With this change, nslookup(1) and dig(1) are no longer in the base 328 system. Users should instead use host(1) and drill(1) which are 329 in the base system. Alternatively, nslookup and dig can 330 be obtained by installing the dns/bind-tools port. 331 33220130916: 333 With the addition of unbound(8), a new unbound user is now 334 required during installworld. "mergemaster -p" can be used to 335 add the user prior to installworld, as documented in the handbook. 336 33720130911: 338 OpenSSH is now built with DNSSEC support, and will by default 339 silently trust signed SSHFP records. This can be controlled with 340 the VerifyHostKeyDNS client configuration setting. DNSSEC support 341 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 342 34320130906: 344 The GNU Compiler Collection and C++ standard library (libstdc++) 345 are no longer built by default on platforms where clang is the system 346 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 347 options in src.conf. 348 34920130905: 350 The PROCDESC kernel option is now part of the GENERIC kernel 351 configuration and is required for the rwhod(8) to work. 352 If you are using custom kernel configuration, you should include 353 'options PROCDESC'. 354 35520130905: 356 The API and ABI related to the Capsicum framework was modified 357 in backward incompatible way. The userland libraries and programs 358 have to be recompiled to work with the new kernel. This includes the 359 following libraries and programs, but the whole buildworld is 360 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 361 kdump, procstat, rwho, rwhod, uniq. 362 36320130903: 364 AES-NI intrinsic support has been added to gcc. The AES-NI module 365 has been updated to use this support. A new gcc is required to build 366 the aesni module on both i386 and amd64. 367 36820130821: 369 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 370 Thus "device padlock_rng" and "device rdrand_rng" should be 371 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 372 37320130813: 374 WITH_ICONV has been split into two feature sets. WITH_ICONV now 375 enables just the iconv* functionality and is now on by default. 376 WITH_LIBICONV_COMPAT enables the libiconv api and link time 377 compatability. Set WITHOUT_ICONV to build the old way. 378 If you have been using WITH_ICONV before, you will very likely 379 need to turn on WITH_LIBICONV_COMPAT. 380 38120130806: 382 INVARIANTS option now enables DEBUG for code with OpenSolaris and 383 Illumos origin, including ZFS. If you have INVARIANTS in your 384 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 385 explicitly. 386 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 387 locks if WITNESS option was set. Because that generated a lot of 388 witness(9) reports and all of them were believed to be false 389 positives, this is no longer done. New option OPENSOLARIS_WITNESS 390 can be used to achieve the previous behavior. 391 39220130806: 393 Timer values in IPv6 data structures now use time_uptime instead 394 of time_second. Although this is not a user-visible functional 395 change, userland utilities which directly use them---ndp(8), 396 rtadvd(8), and rtsold(8) in the base system---need to be updated 397 to r253970 or later. 398 39920130802: 400 find -delete can now delete the pathnames given as arguments, 401 instead of only files found below them or if the pathname did 402 not contain any slashes. Formerly, the following error message 403 would result: 404 405 find: -delete: <path>: relative path potentially not safe 406 407 Deleting the pathnames given as arguments can be prevented 408 without error messages using -mindepth 1 or by changing 409 directory and passing "." as argument to find. This works in the 410 old as well as the new version of find. 411 41220130726: 413 Behavior of devfs rules path matching has been changed. 414 Pattern is now always matched against fully qualified devfs 415 path and slash characters must be explicitly matched by 416 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 417 subdirectories must be reviewed. 418 41920130716: 420 The default ARM ABI has changed to the ARM EABI. The old ABI is 421 incompatible with the ARM EABI and all programs and modules will 422 need to be rebuilt to work with a new kernel. 423 424 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 425 426 NOTE: Support for the old ABI will be removed in the future and 427 users are advised to upgrade. 428 42920130709: 430 pkg_install has been disconnected from the build if you really need it 431 you should add WITH_PKGTOOLS in your src.conf(5). 432 43320130709: 434 Most of network statistics structures were changed to be able 435 keep 64-bits counters. Thus all tools, that work with networking 436 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 437 43820130629: 439 Fix targets that run multiple make's to use && rather than ; 440 so that subsequent steps depend on success of previous. 441 442 NOTE: if building 'universe' with -j* on stable/8 or stable/9 443 it would be better to start the build using bmake, to avoid 444 overloading the machine. 445 44620130618: 447 Fix a bug that allowed a tracing process (e.g. gdb) to write 448 to a memory-mapped file in the traced process's address space 449 even if neither the traced process nor the tracing process had 450 write access to that file. 451 45220130615: 453 CVS has been removed from the base system. An exact copy 454 of the code is available from the devel/cvs port. 455 45620130613: 457 Some people report the following error after the switch to bmake: 458 459 make: illegal option -- J 460 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 461 ... 462 *** [buildworld] Error code 2 463 464 this likely due to an old instance of make in 465 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 466 which src/Makefile will use that blindly, if it exists, so if 467 you see the above error: 468 469 rm -rf `make -V MAKEPATH` 470 471 should resolve it. 472 47320130516: 474 Use bmake by default. 475 Whereas before one could choose to build with bmake via 476 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 477 make. The goal is to remove these knobs for 10-RELEASE. 478 479 It is worth noting that bmake (like gmake) treats the command 480 line as the unit of failure, rather than statements within the 481 command line. Thus '(cd some/where && dosomething)' is safer 482 than 'cd some/where; dosomething'. The '()' allows consistent 483 behavior in parallel build. 484 48520130429: 486 Fix a bug that allows NFS clients to issue READDIR on files. 487 48820130426: 489 The WITHOUT_IDEA option has been removed because 490 the IDEA patent expired. 491 49220130426: 493 The sysctl which controls TRIM support under ZFS has been renamed 494 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 495 enabled by default. 496 49720130425: 498 The mergemaster command now uses the default MAKEOBJDIRPREFIX 499 rather than creating it's own in the temporary directory in 500 order allow access to bootstrapped versions of tools such as 501 install and mtree. When upgrading from version of FreeBSD where 502 the install command does not support -l, you will need to 503 install a new mergemaster command if mergemaster -p is required. 504 This can be accomplished with the command (cd src/usr.sbin/mergemaster 505 && make install). 506 50720130404: 508 Legacy ATA stack, disabled and replaced by new CAM-based one since 509 FreeBSD 9.0, completely removed from the sources. Kernel modules 510 atadisk and atapi*, user-level tools atacontrol and burncd are 511 removed. Kernel option `options ATA_CAM` is now permanently enabled 512 and removed. 513 51420130319: 515 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 516 and socketpair(2). Software, in particular Kerberos, may 517 automatically detect and use these during building. The resulting 518 binaries will not work on older kernels. 519 52020130308: 521 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 522 information, see the respective 20130304 entry). 523 52420130304: 525 Recent commits to callout(9) changed the size of struct callout, 526 so the KBI is probably heavily disturbed. Also, some functions 527 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 528 by macros. Every kernel module using it won't load, so rebuild 529 is requested. 530 531 The ctl device has been re-enabled in GENERIC for i386 and amd64, 532 but does not initialize by default (because of the new CTL_DISABLE 533 option) to save memory. To re-enable it, remove the CTL_DISABLE 534 option from the kernel config file or set kern.cam.ctl.disable=0 535 in /boot/loader.conf. 536 53720130301: 538 The ctl device has been disabled in GENERIC for i386 and amd64. 539 This was done due to the extra memory being allocated at system 540 initialisation time by the ctl driver which was only used if 541 a CAM target device was created. This makes a FreeBSD system 542 unusable on 128MB or less of RAM. 543 54420130208: 545 A new compression method (lz4) has been merged to -HEAD. Please 546 refer to zpool-features(7) for more information. 547 548 Please refer to the "ZFS notes" section of this file for information 549 on upgrading boot ZFS pools. 550 55120130129: 552 A BSD-licensed patch(1) variant has been added and is installed 553 as bsdpatch, being the GNU version the default patch. 554 To inverse the logic and use the BSD-licensed one as default, 555 while having the GNU version installed as gnupatch, rebuild 556 and install world with the WITH_BSD_PATCH knob set. 557 55820130121: 559 Due to the use of the new -l option to install(1) during build 560 and install, you must take care not to directly set the INSTALL 561 make variable in your /etc/make.conf, /etc/src.conf, or on the 562 command line. If you wish to use the -C flag for all installs 563 you may be able to add INSTALL+=-C to /etc/make.conf or 564 /etc/src.conf. 565 56620130118: 567 The install(1) option -M has changed meaning and now takes an 568 argument that is a file or path to append logs to. In the 569 unlikely event that -M was the last option on the command line 570 and the command line contained at least two files and a target 571 directory the first file will have logs appended to it. The -M 572 option served little practical purpose in the last decade so its 573 use is expected to be extremely rare. 574 57520121223: 576 After switching to Clang as the default compiler some users of ZFS 577 on i386 systems started to experience stack overflow kernel panics. 578 Please consider using 'options KSTACK_PAGES=4' in such configurations. 579 58020121222: 581 GEOM_LABEL now mangles label names read from file system metadata. 582 Mangling affect labels containing spaces, non-printable characters, 583 '%' or '"'. Device names in /etc/fstab and other places may need to 584 be updated. 585 58620121217: 587 By default, only the 10 most recent kernel dumps will be saved. To 588 restore the previous behaviour (no limit on the number of kernel dumps 589 stored in the dump directory) add the following line to /etc/rc.conf: 590 591 savecore_flags="" 592 59320121201: 594 With the addition of auditdistd(8), a new auditdistd user is now 595 required during installworld. "mergemaster -p" can be used to 596 add the user prior to installworld, as documented in the handbook. 597 59820121117: 599 The sin6_scope_id member variable in struct sockaddr_in6 is now 600 filled by the kernel before passing the structure to the userland via 601 sysctl or routing socket. This means the KAME-specific embedded scope 602 id in sin6_addr.s6_addr[2] is always cleared in userland application. 603 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 604 __FreeBSD_version is bumped to 1000025. 605 60620121105: 607 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 608 This means that the world and kernel will be compiled with clang 609 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 610 and /usr/bin/cpp. To disable this behavior and revert to building 611 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 612 of current may need to bootstrap WITHOUT_CLANG first if the clang 613 build fails (its compatibility window doesn't extend to the 9 stable 614 branch point). 615 61620121102: 617 The IPFIREWALL_FORWARD kernel option has been removed. Its 618 functionality now turned on by default. 619 62020121023: 621 The ZERO_COPY_SOCKET kernel option has been removed and 622 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 623 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 624 mechanism which is not safe and may result in kernel crashes. 625 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 626 driver supports disposeable external page sized mbuf storage. 627 Proper replacements for both zero-copy mechanisms are under 628 consideration and will eventually lead to complete removal 629 of the two kernel options. 630 63120121023: 632 The IPv4 network stack has been converted to network byte 633 order. The following modules need to be recompiled together 634 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 635 pf(4), ipfw(4), ng_ipfw(4), stf(4). 636 63720121022: 638 Support for non-MPSAFE filesystems was removed from VFS. The 639 VFS_VERSION was bumped, all filesystem modules shall be 640 recompiled. 641 64220121018: 643 All the non-MPSAFE filesystems have been disconnected from 644 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 645 portalfs, smbfs, xfs. 646 64720121016: 648 The interface cloning API and ABI has changed. The following 649 modules need to be recompiled together with kernel: 650 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 651 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 652 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 653 65420121015: 655 The sdhci driver was split in two parts: sdhci (generic SD Host 656 Controller logic) and sdhci_pci (actual hardware driver). 657 No kernel config modifications are required, but if you 658 load sdhc as a module you must switch to sdhci_pci instead. 659 66020121014: 661 Import the FUSE kernel and userland support into base system. 662 66320121013: 664 The GNU sort(1) program has been removed since the BSD-licensed 665 sort(1) has been the default for quite some time and no serious 666 problems have been reported. The corresponding WITH_GNU_SORT 667 knob has also gone. 668 66920121006: 670 The pfil(9) API/ABI for AF_INET family has been changed. Packet 671 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 672 with new kernel. 673 67420121001: 675 The net80211(4) ABI has been changed to allow for improved driver 676 PS-POLL and power-save support. All wireless drivers need to be 677 recompiled to work with the new kernel. 678 67920120913: 680 The random(4) support for the VIA hardware random number 681 generator (`PADLOCK') is no longer enabled unconditionally. 682 Add the padlock_rng device in the custom kernel config if 683 needed. The GENERIC kernels on i386 and amd64 do include the 684 device, so the change only affects the custom kernel 685 configurations. 686 68720120908: 688 The pf(4) packet filter ABI has been changed. pfctl(8) and 689 snmp_pf module need to be recompiled to work with new kernel. 690 69120120828: 692 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 693 to -HEAD. Pools that have empty_bpobj in active state can not be 694 imported read-write with ZFS implementations that do not support 695 this feature. For more information read the zpool-features(5) 696 manual page. 697 69820120727: 699 The sparc64 ZFS loader has been changed to no longer try to auto- 700 detect ZFS providers based on diskN aliases but now requires these 701 to be explicitly listed in the OFW boot-device environment variable. 702 70320120712: 704 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 705 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 706 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 707 70820120712: 709 The following sysctls and tunables have been renamed for consistency 710 with other variables: 711 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 712 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 713 71420120628: 715 The sort utility has been replaced with BSD sort. For now, GNU sort 716 is also available as "gnusort" or the default can be set back to 717 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 718 installed as "bsdsort". 719 72020120611: 721 A new version of ZFS (pool version 5000) has been merged to -HEAD. 722 Starting with this version the old system of ZFS pool versioning 723 is superseded by "feature flags". This concept enables forward 724 compatibility against certain future changes in functionality of ZFS 725 pools. The first read-only compatible "feature flag" for ZFS pools 726 is named "com.delphix:async_destroy". For more information 727 read the new zpool-features(5) manual page. 728 Please refer to the "ZFS notes" section of this file for information 729 on upgrading boot ZFS pools. 730 73120120417: 732 The malloc(3) implementation embedded in libc now uses sources imported 733 as contrib/jemalloc. The most disruptive API change is to 734 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 735 delete it prior to installworld, and optionally re-create it using the 736 new format after rebooting. See malloc.conf(5) for details 737 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 738 NAMESPACE section). 739 74020120328: 741 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 742 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 743 now spelled mips. This is to aid compatibility with third-party 744 software that expects this naming scheme in uname(3). Little-endian 745 settings are unchanged. If you are updating a big-endian mips64 machine 746 from before this change, you may need to set MACHINE_ARCH=mips64 in 747 your environment before the new build system will recognize your machine. 748 74920120306: 750 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 751 platforms. 752 75320120229: 754 Now unix domain sockets behave "as expected" on nullfs(5). Previously 755 nullfs(5) did not pass through all behaviours to the underlying layer, 756 as a result if we bound to a socket on the lower layer we could connect 757 only to the lower path; if we bound to the upper layer we could connect 758 only to the upper path. The new behavior is one can connect to both the 759 lower and the upper paths regardless what layer path one binds to. 760 76120120211: 762 The getifaddrs upgrade path broken with 20111215 has been restored. 763 If you have upgraded in between 20111215 and 20120209 you need to 764 recompile libc again with your kernel. You still need to recompile 765 world to be able to configure CARP but this restriction already 766 comes from 20111215. 767 76820120114: 769 The set_rcvar() function has been removed from /etc/rc.subr. All 770 base and ports rc.d scripts have been updated, so if you have a 771 port installed with a script in /usr/local/etc/rc.d you can either 772 hand-edit the rcvar= line, or reinstall the port. 773 774 An easy way to handle the mass-update of /etc/rc.d: 775 rm /etc/rc.d/* && mergemaster -i 776 77720120109: 778 panic(9) now stops other CPUs in the SMP systems, disables interrupts 779 on the current CPU and prevents other threads from running. 780 This behavior can be reverted using the kern.stop_scheduler_on_panic 781 tunable/sysctl. 782 The new behavior can be incompatible with kern.sync_on_panic. 783 78420111215: 785 The carp(4) facility has been changed significantly. Configuration 786 of the CARP protocol via ifconfig(8) has changed, as well as format 787 of CARP events submitted to devd(8) has changed. See manual pages 788 for more information. The arpbalance feature of carp(4) is currently 789 not supported anymore. 790 791 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 792 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 793 need to be recompiled. 794 79520111122: 796 The acpi_wmi(4) status device /dev/wmistat has been renamed to 797 /dev/wmistat0. 798 79920111108: 800 The option VFS_ALLOW_NONMPSAFE option has been added in order to 801 explicitely support non-MPSAFE filesystems. 802 It is on by default for all supported platform at this present 803 time. 804 80520111101: 806 The broken amd(4) driver has been replaced with esp(4) in the amd64, 807 i386 and pc98 GENERIC kernel configuration files. 808 80920110930: 810 sysinstall has been removed 811 81220110923: 813 The stable/9 branch created in subversion. This corresponds to the 814 RELENG_9 branch in CVS. 815 816COMMON ITEMS: 817 818 General Notes 819 ------------- 820 Avoid using make -j when upgrading. While generally safe, there are 821 sometimes problems using -j to upgrade. If your upgrade fails with 822 -j, please try again without -j. From time to time in the past there 823 have been problems using -j with buildworld and/or installworld. This 824 is especially true when upgrading between "distant" versions (eg one 825 that cross a major release boundary or several minor releases, or when 826 several months have passed on the -current branch). 827 828 Sometimes, obscure build problems are the result of environment 829 poisoning. This can happen because the make utility reads its 830 environment when searching for values for global variables. To run 831 your build attempts in an "environmental clean room", prefix all make 832 commands with 'env -i '. See the env(1) manual page for more details. 833 834 When upgrading from one major version to another it is generally best 835 to upgrade to the latest code in the currently installed branch first, 836 then do an upgrade to the new branch. This is the best-tested upgrade 837 path, and has the highest probability of being successful. Please try 838 this approach before reporting problems with a major version upgrade. 839 840 When upgrading a live system, having a root shell around before 841 installing anything can help undo problems. Not having a root shell 842 around can lead to problems if pam has changed too much from your 843 starting point to allow continued authentication after the upgrade. 844 845 ZFS notes 846 --------- 847 When upgrading the boot ZFS pool to a new version, always follow 848 these two steps: 849 850 1.) recompile and reinstall the ZFS boot loader and boot block 851 (this is part of "make buildworld" and "make installworld") 852 853 2.) update the ZFS boot block on your boot drive 854 855 The following example updates the ZFS boot block on the first 856 partition (freebsd-boot) of a GPT partitioned drive ada0: 857 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 858 859 Non-boot pools do not need these updates. 860 861 To build a kernel 862 ----------------- 863 If you are updating from a prior version of FreeBSD (even one just 864 a few days old), you should follow this procedure. It is the most 865 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 866 867 make kernel-toolchain 868 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 869 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 870 871 To test a kernel once 872 --------------------- 873 If you just want to boot a kernel once (because you are not sure 874 if it works, or if you want to boot a known bad kernel to provide 875 debugging information) run 876 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 877 nextboot -k testkernel 878 879 To just build a kernel when you know that it won't mess you up 880 -------------------------------------------------------------- 881 This assumes you are already running a CURRENT system. Replace 882 ${arch} with the architecture of your machine (e.g. "i386", 883 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 884 885 cd src/sys/${arch}/conf 886 config KERNEL_NAME_HERE 887 cd ../compile/KERNEL_NAME_HERE 888 make depend 889 make 890 make install 891 892 If this fails, go to the "To build a kernel" section. 893 894 To rebuild everything and install it on the current system. 895 ----------------------------------------------------------- 896 # Note: sometimes if you are running current you gotta do more than 897 # is listed here if you are upgrading from a really old current. 898 899 <make sure you have good level 0 dumps> 900 make buildworld 901 make kernel KERNCONF=YOUR_KERNEL_HERE 902 [1] 903 <reboot in single user> [3] 904 mergemaster -Fp [5] 905 make installworld 906 mergemaster -Fi [4] 907 make delete-old [6] 908 <reboot> 909 910 To cross-install current onto a separate partition 911 -------------------------------------------------- 912 # In this approach we use a separate partition to hold 913 # current's root, 'usr', and 'var' directories. A partition 914 # holding "/", "/usr" and "/var" should be about 2GB in 915 # size. 916 917 <make sure you have good level 0 dumps> 918 <boot into -stable> 919 make buildworld 920 make buildkernel KERNCONF=YOUR_KERNEL_HERE 921 <maybe newfs current's root partition> 922 <mount current's root partition on directory ${CURRENT_ROOT}> 923 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 924 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 925 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 926 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 927 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 928 <reboot into current> 929 <do a "native" rebuild/install as described in the previous section> 930 <maybe install compatibility libraries from ports/misc/compat*> 931 <reboot> 932 933 934 To upgrade in-place from stable to current 935 ---------------------------------------------- 936 <make sure you have good level 0 dumps> 937 make buildworld [9] 938 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 939 [1] 940 <reboot in single user> [3] 941 mergemaster -Fp [5] 942 make installworld 943 mergemaster -Fi [4] 944 make delete-old [6] 945 <reboot> 946 947 Make sure that you've read the UPDATING file to understand the 948 tweaks to various things you need. At this point in the life 949 cycle of current, things change often and you are on your own 950 to cope. The defaults can also change, so please read ALL of 951 the UPDATING entries. 952 953 Also, if you are tracking -current, you must be subscribed to 954 freebsd-current@freebsd.org. Make sure that before you update 955 your sources that you have read and understood all the recent 956 messages there. If in doubt, please track -stable which has 957 much fewer pitfalls. 958 959 [1] If you have third party modules, such as vmware, you 960 should disable them at this point so they don't crash your 961 system on reboot. 962 963 [3] From the bootblocks, boot -s, and then do 964 fsck -p 965 mount -u / 966 mount -a 967 cd src 968 adjkerntz -i # if CMOS is wall time 969 Also, when doing a major release upgrade, it is required that 970 you boot into single user mode to do the installworld. 971 972 [4] Note: This step is non-optional. Failure to do this step 973 can result in a significant reduction in the functionality of the 974 system. Attempting to do it by hand is not recommended and those 975 that pursue this avenue should read this file carefully, as well 976 as the archives of freebsd-current and freebsd-hackers mailing lists 977 for potential gotchas. The -U option is also useful to consider. 978 See mergemaster(8) for more information. 979 980 [5] Usually this step is a noop. However, from time to time 981 you may need to do this if you get unknown user in the following 982 step. It never hurts to do it all the time. You may need to 983 install a new mergemaster (cd src/usr.sbin/mergemaster && make 984 install) after the buildworld before this step if you last updated 985 from current before 20130425 or from -stable before 20130430. 986 987 [6] This only deletes old files and directories. Old libraries 988 can be deleted by "make delete-old-libs", but you have to make 989 sure that no program is using those libraries anymore. 990 991 [8] In order to have a kernel that can run the 4.x binaries needed to 992 do an installworld, you must include the COMPAT_FREEBSD4 option in 993 your kernel. Failure to do so may leave you with a system that is 994 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 995 required to run the 5.x binaries on more recent kernels. And so on 996 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 997 998 Make sure that you merge any new devices from GENERIC since the 999 last time you updated your kernel config file. 1000 1001 [9] When checking out sources, you must include the -P flag to have 1002 cvs prune empty directories. 1003 1004 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1005 "?=" instead of the "=" assignment operator, so that buildworld can 1006 override the CPUTYPE if it needs to. 1007 1008 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1009 not on the command line, or in /etc/make.conf. buildworld will 1010 warn if it is improperly defined. 1011FORMAT: 1012 1013This file contains a list, in reverse chronological order, of major 1014breakages in tracking -current. It is not guaranteed to be a complete 1015list of such breakages, and only contains entries since October 10, 2007. 1016If you need to see UPDATING entries from before that date, you will need 1017to fetch an UPDATING file from an older FreeBSD release. 1018 1019Copyright information: 1020 1021Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1022 1023Redistribution, publication, translation and use, with or without 1024modification, in full or in part, in any form or format of this 1025document are permitted without further permission from the author. 1026 1027THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1028IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1029WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1030DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1031INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1032(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1033SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1034HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1035STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1036IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1037POSSIBILITY OF SUCH DAMAGE. 1038 1039Contact Warner Losh if you have any questions about your use of 1040this document. 1041 1042$FreeBSD$ 1043