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 3420140922: 35 At svn r271982, The default linux compat kernel ABI has been adjusted 36 to 2.6.18 in support of the linux-c6 compat ports infrastructure 37 update. If you wish to continue using the linux-f10 compat ports, 38 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 39 encouraged to update their linux-compat packages to linux-c6 during 40 their next update cycle. 41 4220140729: 43 The ofwfb driver, used to provide a graphics console on PowerPC when 44 using vt(4), no longer allows mmap() of all of physical memory. This 45 will prevent Xorg on PowerPC with some ATI graphics cards from 46 initializing properly unless x11-servers/xorg-server is updated to 47 1.12.4_8 or newer. 48 4920140723: 50 The xdev targets have been converted to using TARGET and 51 TARGET_ARCH instead of XDEV and XDEV_ARCH. 52 5320140719: 54 The default unbound configuration has been modified to address 55 issues with reverse lookups on networks that use private 56 address ranges. If you use the local_unbound service, run 57 "service local_unbound setup" as root to regenerate your 58 configuration, then "service local_unbound reload" to load the 59 new configuration. 60 6120140709: 62 The GNU texinfo and GNU info pages are not built and installed 63 anymore, WITH_INFO knob has been added to allow to built and install 64 them again. 65 6620140708: 67 The GNU readline library is now an INTERNALLIB - that is, it is 68 statically linked into consumers (GDB and variants) in the base 69 system, and the shared library is no longer installed. The 70 devel/readline port is available for third party software that 71 requires readline. 72 7320140702: 74 The Itanium architecture (ia64) has been removed from the list of 75 known architectures. This is the first step in the removal of the 76 architecture. 77 7820140701: 79 Commit r268115 has added NFSv4.1 server support, merged from 80 projects/nfsv4.1-server. Since this includes changes to the 81 internal interfaces between the NFS related modules, a full 82 build of the kernel and modules will be necessary. 83 __FreeBSD_version has been bumped. 84 8520140629: 86 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 87 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 88 which differs from the behaviour controlled by this knob.) 89 9020140619: 91 Maximal length of the serial number in CTL was increased from 16 to 92 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 93 and ctld, need to be rebuilt to work with a new kernel. 94 9520140606: 96 The libatf-c and libatf-c++ major versions were downgraded to 0 and 97 1 respectively to match the upstream numbers. They were out of 98 sync because, when they were originally added to FreeBSD, the 99 upstream versions were not respected. These libraries are private 100 and not yet built by default, so renumbering them should be a 101 non-issue. However, unclean source trees will yield broken test 102 programs once the operator executes "make delete-old-libs" after a 103 "make installworld". 104 105 Additionally, the atf-sh binary was made private by moving it into 106 /usr/libexec/. Already-built shell test programs will keep the 107 path to the old binary so they will break after "make delete-old" 108 is run. 109 110 If you are using WITH_TESTS=yes (not the default), wipe the object 111 tree and rebuild from scratch to prevent spurious test failures. 112 This is only needed once: the misnumbered libraries and misplaced 113 binaries have been added to OptionalObsoleteFiles.inc so they will 114 be removed during a clean upgrade. 115 11620140512: 117 Clang and llvm have been upgraded to 3.4.1 release. 118 11920140508: 120 We bogusly installed src.opts.mk in /usr/share/mk. This file should 121 be removed to avoid issues in the future (and has been added to 122 ObsoleteFiles.inc). 123 12420140505: 125 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 126 past, it affected all builds that used the bsd.*.mk files. The old 127 behavior was a bug, but people may have relied upon it. To get this 128 behavior back, you can .include /etc/src.conf from /etc/make.conf 129 (which is still global and isn't changed). This also changes the 130 behavior of incremental builds inside the tree of individual 131 directories. Set MAKESYSPATH to ".../share/mk" to do that. 132 Although this has survived make universe and some upgrade scenarios, 133 other upgrade scenarios may have broken. At least one form of 134 temporary breakage was fixed with MAKESYSPATH settings for buildworld 135 as well... In cases where MAKESYSPATH isn't working with this 136 setting, you'll need to set it to the full path to your tree. 137 138 One side effect of all this cleaning up is that bsd.compiler.mk 139 is no longer implicitly included by bsd.own.mk. If you wish to 140 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 141 as well. 142 14320140430: 144 The lindev device has been removed since /dev/full has been made a 145 standard device. __FreeBSD_version has been bumped. 146 14720140418: 148 The YES_HESIOD knob has been removed. It has been obsolete for 149 a decade. Please move to using WITH_HESIOD instead or your builds 150 will silently lack HESIOD. 151 15220140405: 153 The uart(4) driver has been changed with respect to its handling 154 of the low-level console. Previously the uart(4) driver prevented 155 any process from changing the baudrate or the CLOCAL and HUPCL 156 control flags. By removing the restrictions, operators can make 157 changes to the serial console port without having to reboot. 158 However, when getty(8) is started on the serial device that is 159 associated with the low-level console, a misconfigured terminal 160 line in /etc/ttys will now have a real impact. 161 Before upgrading the kernel, make sure that /etc/ttys has the 162 serial console device configured as 3wire without baudrate to 163 preserve the previous behaviour. E.g: 164 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 165 16620140306: 167 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 168 to improve performance. To re-enable it, if needed, run rpcbind 169 with command line option -W. 170 17120140226: 172 Switched back to the GPL dtc compiler due to updates in the upstream 173 dts files not being supported by the BSDL dtc compiler. You will need 174 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 175 may result while building dtb files during a kernel build if you fail 176 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 177 17820140216: 179 Clang and llvm have been upgraded to 3.4 release. 180 18120140216: 182 The nve(4) driver has been removed. Please use the nfe(4) driver 183 for NVIDIA nForce MCP Ethernet adapters instead. 184 18520140212: 186 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 187 This could cause certain C++ applications using shared libraries built 188 against the previous version of libc++ to crash. The incompatibility 189 has now been fixed, but any C++ applications or shared libraries built 190 between r261283 and r261801 should be recompiled. 191 19220140204: 193 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 194 capability mode support. Please note that enabling the feature in 195 kernel is still highly recommended. 196 19720140131: 198 OpenSSH is now built with sandbox support, and will use sandbox as 199 the default privilege separation method. This requires Capsicum 200 capability mode support in kernel. 201 20220140128: 203 The libelf and libdwarf libraries have been updated to newer 204 versions from upstream. Shared library version numbers for 205 these two libraries were bumped. Any ports or binaries 206 requiring these two libraries should be recompiled. 207 __FreeBSD_version is bumped to 1100006. 208 20920140110: 210 If a Makefile in a tests/ directory was auto-generating a Kyuafile 211 instead of providing an explicit one, this would prevent such 212 Makefile from providing its own Kyuafile in the future during 213 NO_CLEAN builds. This has been fixed in the Makefiles but manual 214 intervention is needed to clean an objdir if you use NO_CLEAN: 215 # find /usr/obj -name Kyuafile | xargs rm -f 216 21720131213: 218 The behavior of gss_pseudo_random() for the krb5 mechanism 219 has changed, for applications requesting a longer random string 220 than produced by the underlying enctype's pseudo-random() function. 221 In particular, the random string produced from a session key of 222 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 223 be different at the 17th octet and later, after this change. 224 The counter used in the PRF+ construction is now encoded as a 225 big-endian integer in accordance with RFC 4402. 226 __FreeBSD_version is bumped to 1100004. 227 22820131108: 229 The WITHOUT_ATF build knob has been removed and its functionality 230 has been subsumed into the more generic WITHOUT_TESTS. If you were 231 using the former to disable the build of the ATF libraries, you 232 should change your settings to use the latter. 233 23420131025: 235 The default version of mtree is nmtree which is obtained from 236 NetBSD. The output is generally the same, but may vary 237 slightly. If you found you need identical output adding 238 "-F freebsd9" to the command line should do the trick. For the 239 time being, the old mtree is available as fmtree. 240 24120131014: 242 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 243 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 244 1.1.4_8 and verify bsdyml not linked in, before running "make 245 delete-old-libs": 246 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 247 or 248 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 249 25020131010: 251 The rc.d/jail script has been updated to support jail(8) 252 configuration file. The "jail_<jname>_*" rc.conf(5) variables 253 for per-jail configuration are automatically converted to 254 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 255 This is transparently backward compatible. See below about some 256 incompatibilities and rc.conf(5) manual page for more details. 257 258 These variables are now deprecated in favor of jail(8) configuration 259 file. One can use "rc.d/jail config <jname>" command to generate 260 a jail(8) configuration file in /var/run/jail.<jname>.conf without 261 running the jail(8) utility. The default pathname of the 262 configuration file is /etc/jail.conf and can be specified by 263 using $jail_conf or $jail_<jname>_conf variables. 264 265 Please note that jail_devfs_ruleset accepts an integer at 266 this moment. Please consider to rewrite the ruleset name 267 with an integer. 268 26920130930: 270 BIND has been removed from the base system. If all you need 271 is a local resolver, simply enable and start the local_unbound 272 service instead. Otherwise, several versions of BIND are 273 available in the ports tree. The dns/bind99 port is one example. 274 275 With this change, nslookup(1) and dig(1) are no longer in the base 276 system. Users should instead use host(1) and drill(1) which are 277 in the base system. Alternatively, nslookup and dig can 278 be obtained by installing the dns/bind-tools port. 279 28020130916: 281 With the addition of unbound(8), a new unbound user is now 282 required during installworld. "mergemaster -p" can be used to 283 add the user prior to installworld, as documented in the handbook. 284 28520130911: 286 OpenSSH is now built with DNSSEC support, and will by default 287 silently trust signed SSHFP records. This can be controlled with 288 the VerifyHostKeyDNS client configuration setting. DNSSEC support 289 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 290 29120130906: 292 The GNU Compiler Collection and C++ standard library (libstdc++) 293 are no longer built by default on platforms where clang is the system 294 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 295 options in src.conf. 296 29720130905: 298 The PROCDESC kernel option is now part of the GENERIC kernel 299 configuration and is required for the rwhod(8) to work. 300 If you are using custom kernel configuration, you should include 301 'options PROCDESC'. 302 30320130905: 304 The API and ABI related to the Capsicum framework was modified 305 in backward incompatible way. The userland libraries and programs 306 have to be recompiled to work with the new kernel. This includes the 307 following libraries and programs, but the whole buildworld is 308 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 309 kdump, procstat, rwho, rwhod, uniq. 310 31120130903: 312 AES-NI intrinsic support has been added to gcc. The AES-NI module 313 has been updated to use this support. A new gcc is required to build 314 the aesni module on both i386 and amd64. 315 31620130821: 317 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 318 Thus "device padlock_rng" and "device rdrand_rng" should be 319 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 320 32120130813: 322 WITH_ICONV has been split into two feature sets. WITH_ICONV now 323 enables just the iconv* functionality and is now on by default. 324 WITH_LIBICONV_COMPAT enables the libiconv api and link time 325 compatability. Set WITHOUT_ICONV to build the old way. 326 If you have been using WITH_ICONV before, you will very likely 327 need to turn on WITH_LIBICONV_COMPAT. 328 32920130806: 330 INVARIANTS option now enables DEBUG for code with OpenSolaris and 331 Illumos origin, including ZFS. If you have INVARIANTS in your 332 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 333 explicitly. 334 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 335 locks if WITNESS option was set. Because that generated a lot of 336 witness(9) reports and all of them were believed to be false 337 positives, this is no longer done. New option OPENSOLARIS_WITNESS 338 can be used to achieve the previous behavior. 339 34020130806: 341 Timer values in IPv6 data structures now use time_uptime instead 342 of time_second. Although this is not a user-visible functional 343 change, userland utilities which directly use them---ndp(8), 344 rtadvd(8), and rtsold(8) in the base system---need to be updated 345 to r253970 or later. 346 34720130802: 348 find -delete can now delete the pathnames given as arguments, 349 instead of only files found below them or if the pathname did 350 not contain any slashes. Formerly, the following error message 351 would result: 352 353 find: -delete: <path>: relative path potentially not safe 354 355 Deleting the pathnames given as arguments can be prevented 356 without error messages using -mindepth 1 or by changing 357 directory and passing "." as argument to find. This works in the 358 old as well as the new version of find. 359 36020130726: 361 Behavior of devfs rules path matching has been changed. 362 Pattern is now always matched against fully qualified devfs 363 path and slash characters must be explicitly matched by 364 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 365 subdirectories must be reviewed. 366 36720130716: 368 The default ARM ABI has changed to the ARM EABI. The old ABI is 369 incompatible with the ARM EABI and all programs and modules will 370 need to be rebuilt to work with a new kernel. 371 372 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 373 374 NOTE: Support for the old ABI will be removed in the future and 375 users are advised to upgrade. 376 37720130709: 378 pkg_install has been disconnected from the build if you really need it 379 you should add WITH_PKGTOOLS in your src.conf(5). 380 38120130709: 382 Most of network statistics structures were changed to be able 383 keep 64-bits counters. Thus all tools, that work with networking 384 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 385 38620130629: 387 Fix targets that run multiple make's to use && rather than ; 388 so that subsequent steps depend on success of previous. 389 390 NOTE: if building 'universe' with -j* on stable/8 or stable/9 391 it would be better to start the build using bmake, to avoid 392 overloading the machine. 393 39420130618: 395 Fix a bug that allowed a tracing process (e.g. gdb) to write 396 to a memory-mapped file in the traced process's address space 397 even if neither the traced process nor the tracing process had 398 write access to that file. 399 40020130615: 401 CVS has been removed from the base system. An exact copy 402 of the code is available from the devel/cvs port. 403 40420130613: 405 Some people report the following error after the switch to bmake: 406 407 make: illegal option -- J 408 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 409 ... 410 *** [buildworld] Error code 2 411 412 this likely due to an old instance of make in 413 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 414 which src/Makefile will use that blindly, if it exists, so if 415 you see the above error: 416 417 rm -rf `make -V MAKEPATH` 418 419 should resolve it. 420 42120130516: 422 Use bmake by default. 423 Whereas before one could choose to build with bmake via 424 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 425 make. The goal is to remove these knobs for 10-RELEASE. 426 427 It is worth noting that bmake (like gmake) treats the command 428 line as the unit of failure, rather than statements within the 429 command line. Thus '(cd some/where && dosomething)' is safer 430 than 'cd some/where; dosomething'. The '()' allows consistent 431 behavior in parallel build. 432 43320130429: 434 Fix a bug that allows NFS clients to issue READDIR on files. 435 43620130426: 437 The WITHOUT_IDEA option has been removed because 438 the IDEA patent expired. 439 44020130426: 441 The sysctl which controls TRIM support under ZFS has been renamed 442 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 443 enabled by default. 444 44520130425: 446 The mergemaster command now uses the default MAKEOBJDIRPREFIX 447 rather than creating it's own in the temporary directory in 448 order allow access to bootstrapped versions of tools such as 449 install and mtree. When upgrading from version of FreeBSD where 450 the install command does not support -l, you will need to 451 install a new mergemaster command if mergemaster -p is required. 452 This can be accomplished with the command (cd src/usr.sbin/mergemaster 453 && make install). 454 45520130404: 456 Legacy ATA stack, disabled and replaced by new CAM-based one since 457 FreeBSD 9.0, completely removed from the sources. Kernel modules 458 atadisk and atapi*, user-level tools atacontrol and burncd are 459 removed. Kernel option `options ATA_CAM` is now permanently enabled 460 and removed. 461 46220130319: 463 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 464 and socketpair(2). Software, in particular Kerberos, may 465 automatically detect and use these during building. The resulting 466 binaries will not work on older kernels. 467 46820130308: 469 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 470 information, see the respective 20130304 entry). 471 47220130304: 473 Recent commits to callout(9) changed the size of struct callout, 474 so the KBI is probably heavily disturbed. Also, some functions 475 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 476 by macros. Every kernel module using it won't load, so rebuild 477 is requested. 478 479 The ctl device has been re-enabled in GENERIC for i386 and amd64, 480 but does not initialize by default (because of the new CTL_DISABLE 481 option) to save memory. To re-enable it, remove the CTL_DISABLE 482 option from the kernel config file or set kern.cam.ctl.disable=0 483 in /boot/loader.conf. 484 48520130301: 486 The ctl device has been disabled in GENERIC for i386 and amd64. 487 This was done due to the extra memory being allocated at system 488 initialisation time by the ctl driver which was only used if 489 a CAM target device was created. This makes a FreeBSD system 490 unusable on 128MB or less of RAM. 491 49220130208: 493 A new compression method (lz4) has been merged to -HEAD. Please 494 refer to zpool-features(7) for more information. 495 496 Please refer to the "ZFS notes" section of this file for information 497 on upgrading boot ZFS pools. 498 49920130129: 500 A BSD-licensed patch(1) variant has been added and is installed 501 as bsdpatch, being the GNU version the default patch. 502 To inverse the logic and use the BSD-licensed one as default, 503 while having the GNU version installed as gnupatch, rebuild 504 and install world with the WITH_BSD_PATCH knob set. 505 50620130121: 507 Due to the use of the new -l option to install(1) during build 508 and install, you must take care not to directly set the INSTALL 509 make variable in your /etc/make.conf, /etc/src.conf, or on the 510 command line. If you wish to use the -C flag for all installs 511 you may be able to add INSTALL+=-C to /etc/make.conf or 512 /etc/src.conf. 513 51420130118: 515 The install(1) option -M has changed meaning and now takes an 516 argument that is a file or path to append logs to. In the 517 unlikely event that -M was the last option on the command line 518 and the command line contained at least two files and a target 519 directory the first file will have logs appended to it. The -M 520 option served little practical purpose in the last decade so its 521 use is expected to be extremely rare. 522 52320121223: 524 After switching to Clang as the default compiler some users of ZFS 525 on i386 systems started to experience stack overflow kernel panics. 526 Please consider using 'options KSTACK_PAGES=4' in such configurations. 527 52820121222: 529 GEOM_LABEL now mangles label names read from file system metadata. 530 Mangling affect labels containing spaces, non-printable characters, 531 '%' or '"'. Device names in /etc/fstab and other places may need to 532 be updated. 533 53420121217: 535 By default, only the 10 most recent kernel dumps will be saved. To 536 restore the previous behaviour (no limit on the number of kernel dumps 537 stored in the dump directory) add the following line to /etc/rc.conf: 538 539 savecore_flags="" 540 54120121201: 542 With the addition of auditdistd(8), a new auditdistd user is now 543 required during installworld. "mergemaster -p" can be used to 544 add the user prior to installworld, as documented in the handbook. 545 54620121117: 547 The sin6_scope_id member variable in struct sockaddr_in6 is now 548 filled by the kernel before passing the structure to the userland via 549 sysctl or routing socket. This means the KAME-specific embedded scope 550 id in sin6_addr.s6_addr[2] is always cleared in userland application. 551 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 552 __FreeBSD_version is bumped to 1000025. 553 55420121105: 555 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 556 This means that the world and kernel will be compiled with clang 557 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 558 and /usr/bin/cpp. To disable this behavior and revert to building 559 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 560 of current may need to bootstrap WITHOUT_CLANG first if the clang 561 build fails (its compatibility window doesn't extend to the 9 stable 562 branch point). 563 56420121102: 565 The IPFIREWALL_FORWARD kernel option has been removed. Its 566 functionality now turned on by default. 567 56820121023: 569 The ZERO_COPY_SOCKET kernel option has been removed and 570 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 571 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 572 mechanism which is not safe and may result in kernel crashes. 573 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 574 driver supports disposeable external page sized mbuf storage. 575 Proper replacements for both zero-copy mechanisms are under 576 consideration and will eventually lead to complete removal 577 of the two kernel options. 578 57920121023: 580 The IPv4 network stack has been converted to network byte 581 order. The following modules need to be recompiled together 582 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 583 pf(4), ipfw(4), ng_ipfw(4), stf(4). 584 58520121022: 586 Support for non-MPSAFE filesystems was removed from VFS. The 587 VFS_VERSION was bumped, all filesystem modules shall be 588 recompiled. 589 59020121018: 591 All the non-MPSAFE filesystems have been disconnected from 592 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 593 portalfs, smbfs, xfs. 594 59520121016: 596 The interface cloning API and ABI has changed. The following 597 modules need to be recompiled together with kernel: 598 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 599 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 600 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 601 60220121015: 603 The sdhci driver was split in two parts: sdhci (generic SD Host 604 Controller logic) and sdhci_pci (actual hardware driver). 605 No kernel config modifications are required, but if you 606 load sdhc as a module you must switch to sdhci_pci instead. 607 60820121014: 609 Import the FUSE kernel and userland support into base system. 610 61120121013: 612 The GNU sort(1) program has been removed since the BSD-licensed 613 sort(1) has been the default for quite some time and no serious 614 problems have been reported. The corresponding WITH_GNU_SORT 615 knob has also gone. 616 61720121006: 618 The pfil(9) API/ABI for AF_INET family has been changed. Packet 619 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 620 with new kernel. 621 62220121001: 623 The net80211(4) ABI has been changed to allow for improved driver 624 PS-POLL and power-save support. All wireless drivers need to be 625 recompiled to work with the new kernel. 626 62720120913: 628 The random(4) support for the VIA hardware random number 629 generator (`PADLOCK') is no longer enabled unconditionally. 630 Add the padlock_rng device in the custom kernel config if 631 needed. The GENERIC kernels on i386 and amd64 do include the 632 device, so the change only affects the custom kernel 633 configurations. 634 63520120908: 636 The pf(4) packet filter ABI has been changed. pfctl(8) and 637 snmp_pf module need to be recompiled to work with new kernel. 638 63920120828: 640 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 641 to -HEAD. Pools that have empty_bpobj in active state can not be 642 imported read-write with ZFS implementations that do not support 643 this feature. For more information read the zpool-features(5) 644 manual page. 645 64620120727: 647 The sparc64 ZFS loader has been changed to no longer try to auto- 648 detect ZFS providers based on diskN aliases but now requires these 649 to be explicitly listed in the OFW boot-device environment variable. 650 65120120712: 652 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 653 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 654 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 655 65620120712: 657 The following sysctls and tunables have been renamed for consistency 658 with other variables: 659 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 660 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 661 66220120628: 663 The sort utility has been replaced with BSD sort. For now, GNU sort 664 is also available as "gnusort" or the default can be set back to 665 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 666 installed as "bsdsort". 667 66820120611: 669 A new version of ZFS (pool version 5000) has been merged to -HEAD. 670 Starting with this version the old system of ZFS pool versioning 671 is superseded by "feature flags". This concept enables forward 672 compatibility against certain future changes in functionality of ZFS 673 pools. The first read-only compatible "feature flag" for ZFS pools 674 is named "com.delphix:async_destroy". For more information 675 read the new zpool-features(5) manual page. 676 Please refer to the "ZFS notes" section of this file for information 677 on upgrading boot ZFS pools. 678 67920120417: 680 The malloc(3) implementation embedded in libc now uses sources imported 681 as contrib/jemalloc. The most disruptive API change is to 682 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 683 delete it prior to installworld, and optionally re-create it using the 684 new format after rebooting. See malloc.conf(5) for details 685 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 686 NAMESPACE section). 687 68820120328: 689 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 690 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 691 now spelled mips. This is to aid compatibility with third-party 692 software that expects this naming scheme in uname(3). Little-endian 693 settings are unchanged. If you are updating a big-endian mips64 machine 694 from before this change, you may need to set MACHINE_ARCH=mips64 in 695 your environment before the new build system will recognize your machine. 696 69720120306: 698 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 699 platforms. 700 70120120229: 702 Now unix domain sockets behave "as expected" on nullfs(5). Previously 703 nullfs(5) did not pass through all behaviours to the underlying layer, 704 as a result if we bound to a socket on the lower layer we could connect 705 only to the lower path; if we bound to the upper layer we could connect 706 only to the upper path. The new behavior is one can connect to both the 707 lower and the upper paths regardless what layer path one binds to. 708 70920120211: 710 The getifaddrs upgrade path broken with 20111215 has been restored. 711 If you have upgraded in between 20111215 and 20120209 you need to 712 recompile libc again with your kernel. You still need to recompile 713 world to be able to configure CARP but this restriction already 714 comes from 20111215. 715 71620120114: 717 The set_rcvar() function has been removed from /etc/rc.subr. All 718 base and ports rc.d scripts have been updated, so if you have a 719 port installed with a script in /usr/local/etc/rc.d you can either 720 hand-edit the rcvar= line, or reinstall the port. 721 722 An easy way to handle the mass-update of /etc/rc.d: 723 rm /etc/rc.d/* && mergemaster -i 724 72520120109: 726 panic(9) now stops other CPUs in the SMP systems, disables interrupts 727 on the current CPU and prevents other threads from running. 728 This behavior can be reverted using the kern.stop_scheduler_on_panic 729 tunable/sysctl. 730 The new behavior can be incompatible with kern.sync_on_panic. 731 73220111215: 733 The carp(4) facility has been changed significantly. Configuration 734 of the CARP protocol via ifconfig(8) has changed, as well as format 735 of CARP events submitted to devd(8) has changed. See manual pages 736 for more information. The arpbalance feature of carp(4) is currently 737 not supported anymore. 738 739 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 740 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 741 need to be recompiled. 742 74320111122: 744 The acpi_wmi(4) status device /dev/wmistat has been renamed to 745 /dev/wmistat0. 746 74720111108: 748 The option VFS_ALLOW_NONMPSAFE option has been added in order to 749 explicitely support non-MPSAFE filesystems. 750 It is on by default for all supported platform at this present 751 time. 752 75320111101: 754 The broken amd(4) driver has been replaced with esp(4) in the amd64, 755 i386 and pc98 GENERIC kernel configuration files. 756 75720110930: 758 sysinstall has been removed 759 76020110923: 761 The stable/9 branch created in subversion. This corresponds to the 762 RELENG_9 branch in CVS. 763 764COMMON ITEMS: 765 766 General Notes 767 ------------- 768 Avoid using make -j when upgrading. While generally safe, there are 769 sometimes problems using -j to upgrade. If your upgrade fails with 770 -j, please try again without -j. From time to time in the past there 771 have been problems using -j with buildworld and/or installworld. This 772 is especially true when upgrading between "distant" versions (eg one 773 that cross a major release boundary or several minor releases, or when 774 several months have passed on the -current branch). 775 776 Sometimes, obscure build problems are the result of environment 777 poisoning. This can happen because the make utility reads its 778 environment when searching for values for global variables. To run 779 your build attempts in an "environmental clean room", prefix all make 780 commands with 'env -i '. See the env(1) manual page for more details. 781 782 When upgrading from one major version to another it is generally best 783 to upgrade to the latest code in the currently installed branch first, 784 then do an upgrade to the new branch. This is the best-tested upgrade 785 path, and has the highest probability of being successful. Please try 786 this approach before reporting problems with a major version upgrade. 787 788 When upgrading a live system, having a root shell around before 789 installing anything can help undo problems. Not having a root shell 790 around can lead to problems if pam has changed too much from your 791 starting point to allow continued authentication after the upgrade. 792 793 ZFS notes 794 --------- 795 When upgrading the boot ZFS pool to a new version, always follow 796 these two steps: 797 798 1.) recompile and reinstall the ZFS boot loader and boot block 799 (this is part of "make buildworld" and "make installworld") 800 801 2.) update the ZFS boot block on your boot drive 802 803 The following example updates the ZFS boot block on the first 804 partition (freebsd-boot) of a GPT partitioned drive ad0: 805 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 806 807 Non-boot pools do not need these updates. 808 809 To build a kernel 810 ----------------- 811 If you are updating from a prior version of FreeBSD (even one just 812 a few days old), you should follow this procedure. It is the most 813 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 814 815 make kernel-toolchain 816 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 817 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 818 819 To test a kernel once 820 --------------------- 821 If you just want to boot a kernel once (because you are not sure 822 if it works, or if you want to boot a known bad kernel to provide 823 debugging information) run 824 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 825 nextboot -k testkernel 826 827 To just build a kernel when you know that it won't mess you up 828 -------------------------------------------------------------- 829 This assumes you are already running a CURRENT system. Replace 830 ${arch} with the architecture of your machine (e.g. "i386", 831 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 832 833 cd src/sys/${arch}/conf 834 config KERNEL_NAME_HERE 835 cd ../compile/KERNEL_NAME_HERE 836 make depend 837 make 838 make install 839 840 If this fails, go to the "To build a kernel" section. 841 842 To rebuild everything and install it on the current system. 843 ----------------------------------------------------------- 844 # Note: sometimes if you are running current you gotta do more than 845 # is listed here if you are upgrading from a really old current. 846 847 <make sure you have good level 0 dumps> 848 make buildworld 849 make kernel KERNCONF=YOUR_KERNEL_HERE 850 [1] 851 <reboot in single user> [3] 852 mergemaster -Fp [5] 853 make installworld 854 mergemaster -Fi [4] 855 make delete-old [6] 856 <reboot> 857 858 To cross-install current onto a separate partition 859 -------------------------------------------------- 860 # In this approach we use a separate partition to hold 861 # current's root, 'usr', and 'var' directories. A partition 862 # holding "/", "/usr" and "/var" should be about 2GB in 863 # size. 864 865 <make sure you have good level 0 dumps> 866 <boot into -stable> 867 make buildworld 868 make buildkernel KERNCONF=YOUR_KERNEL_HERE 869 <maybe newfs current's root partition> 870 <mount current's root partition on directory ${CURRENT_ROOT}> 871 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 872 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 873 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 874 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 875 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 876 <reboot into current> 877 <do a "native" rebuild/install as described in the previous section> 878 <maybe install compatibility libraries from ports/misc/compat*> 879 <reboot> 880 881 882 To upgrade in-place from stable to current 883 ---------------------------------------------- 884 <make sure you have good level 0 dumps> 885 make buildworld [9] 886 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 887 [1] 888 <reboot in single user> [3] 889 mergemaster -Fp [5] 890 make installworld 891 mergemaster -Fi [4] 892 make delete-old [6] 893 <reboot> 894 895 Make sure that you've read the UPDATING file to understand the 896 tweaks to various things you need. At this point in the life 897 cycle of current, things change often and you are on your own 898 to cope. The defaults can also change, so please read ALL of 899 the UPDATING entries. 900 901 Also, if you are tracking -current, you must be subscribed to 902 freebsd-current@freebsd.org. Make sure that before you update 903 your sources that you have read and understood all the recent 904 messages there. If in doubt, please track -stable which has 905 much fewer pitfalls. 906 907 [1] If you have third party modules, such as vmware, you 908 should disable them at this point so they don't crash your 909 system on reboot. 910 911 [3] From the bootblocks, boot -s, and then do 912 fsck -p 913 mount -u / 914 mount -a 915 cd src 916 adjkerntz -i # if CMOS is wall time 917 Also, when doing a major release upgrade, it is required that 918 you boot into single user mode to do the installworld. 919 920 [4] Note: This step is non-optional. Failure to do this step 921 can result in a significant reduction in the functionality of the 922 system. Attempting to do it by hand is not recommended and those 923 that pursue this avenue should read this file carefully, as well 924 as the archives of freebsd-current and freebsd-hackers mailing lists 925 for potential gotchas. The -U option is also useful to consider. 926 See mergemaster(8) for more information. 927 928 [5] Usually this step is a noop. However, from time to time 929 you may need to do this if you get unknown user in the following 930 step. It never hurts to do it all the time. You may need to 931 install a new mergemaster (cd src/usr.sbin/mergemaster && make 932 install) after the buildworld before this step if you last updated 933 from current before 20130425 or from -stable before 20130430. 934 935 [6] This only deletes old files and directories. Old libraries 936 can be deleted by "make delete-old-libs", but you have to make 937 sure that no program is using those libraries anymore. 938 939 [8] In order to have a kernel that can run the 4.x binaries needed to 940 do an installworld, you must include the COMPAT_FREEBSD4 option in 941 your kernel. Failure to do so may leave you with a system that is 942 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 943 required to run the 5.x binaries on more recent kernels. And so on 944 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 945 946 Make sure that you merge any new devices from GENERIC since the 947 last time you updated your kernel config file. 948 949 [9] When checking out sources, you must include the -P flag to have 950 cvs prune empty directories. 951 952 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 953 "?=" instead of the "=" assignment operator, so that buildworld can 954 override the CPUTYPE if it needs to. 955 956 MAKEOBJDIRPREFIX must be defined in an environment variable, and 957 not on the command line, or in /etc/make.conf. buildworld will 958 warn if it is improperly defined. 959FORMAT: 960 961This file contains a list, in reverse chronological order, of major 962breakages in tracking -current. It is not guaranteed to be a complete 963list of such breakages, and only contains entries since October 10, 2007. 964If you need to see UPDATING entries from before that date, you will need 965to fetch an UPDATING file from an older FreeBSD release. 966 967Copyright information: 968 969Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 970 971Redistribution, publication, translation and use, with or without 972modification, in full or in part, in any form or format of this 973document are permitted without further permission from the author. 974 975THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 976IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 977WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 978DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 979INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 980(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 981SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 982HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 983STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 984IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 985POSSIBILITY OF SUCH DAMAGE. 986 987Contact Warner Losh if you have any questions about your use of 988this document. 989 990$FreeBSD$ 991