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 3420141009: 35 gperf has been removed from the base system for architectures 36 that use clang. Ports that require gperf will obtain it from the 37 devel/gperf port. 38 3920140923: 40 pjdfstest has been moved from tools/regression/pjdfstest to 41 contrib/pjdfstest . 42 4320140922: 44 At svn r271982, The default linux compat kernel ABI has been adjusted 45 to 2.6.18 in support of the linux-c6 compat ports infrastructure 46 update. If you wish to continue using the linux-f10 compat ports, 47 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 48 encouraged to update their linux-compat packages to linux-c6 during 49 their next update cycle. 50 5120140729: 52 The ofwfb driver, used to provide a graphics console on PowerPC when 53 using vt(4), no longer allows mmap() of all of physical memory. This 54 will prevent Xorg on PowerPC with some ATI graphics cards from 55 initializing properly unless x11-servers/xorg-server is updated to 56 1.12.4_8 or newer. 57 5820140723: 59 The xdev targets have been converted to using TARGET and 60 TARGET_ARCH instead of XDEV and XDEV_ARCH. 61 6220140719: 63 The default unbound configuration has been modified to address 64 issues with reverse lookups on networks that use private 65 address ranges. If you use the local_unbound service, run 66 "service local_unbound setup" as root to regenerate your 67 configuration, then "service local_unbound reload" to load the 68 new configuration. 69 7020140709: 71 The GNU texinfo and GNU info pages are not built and installed 72 anymore, WITH_INFO knob has been added to allow to built and install 73 them again. 74 7520140708: 76 The GNU readline library is now an INTERNALLIB - that is, it is 77 statically linked into consumers (GDB and variants) in the base 78 system, and the shared library is no longer installed. The 79 devel/readline port is available for third party software that 80 requires readline. 81 8220140702: 83 The Itanium architecture (ia64) has been removed from the list of 84 known architectures. This is the first step in the removal of the 85 architecture. 86 8720140701: 88 Commit r268115 has added NFSv4.1 server support, merged from 89 projects/nfsv4.1-server. Since this includes changes to the 90 internal interfaces between the NFS related modules, a full 91 build of the kernel and modules will be necessary. 92 __FreeBSD_version has been bumped. 93 9420140629: 95 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 96 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 97 which differs from the behaviour controlled by this knob.) 98 9920140619: 100 Maximal length of the serial number in CTL was increased from 16 to 101 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 102 and ctld, need to be rebuilt to work with a new kernel. 103 10420140606: 105 The libatf-c and libatf-c++ major versions were downgraded to 0 and 106 1 respectively to match the upstream numbers. They were out of 107 sync because, when they were originally added to FreeBSD, the 108 upstream versions were not respected. These libraries are private 109 and not yet built by default, so renumbering them should be a 110 non-issue. However, unclean source trees will yield broken test 111 programs once the operator executes "make delete-old-libs" after a 112 "make installworld". 113 114 Additionally, the atf-sh binary was made private by moving it into 115 /usr/libexec/. Already-built shell test programs will keep the 116 path to the old binary so they will break after "make delete-old" 117 is run. 118 119 If you are using WITH_TESTS=yes (not the default), wipe the object 120 tree and rebuild from scratch to prevent spurious test failures. 121 This is only needed once: the misnumbered libraries and misplaced 122 binaries have been added to OptionalObsoleteFiles.inc so they will 123 be removed during a clean upgrade. 124 12520140512: 126 Clang and llvm have been upgraded to 3.4.1 release. 127 12820140508: 129 We bogusly installed src.opts.mk in /usr/share/mk. This file should 130 be removed to avoid issues in the future (and has been added to 131 ObsoleteFiles.inc). 132 13320140505: 134 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 135 past, it affected all builds that used the bsd.*.mk files. The old 136 behavior was a bug, but people may have relied upon it. To get this 137 behavior back, you can .include /etc/src.conf from /etc/make.conf 138 (which is still global and isn't changed). This also changes the 139 behavior of incremental builds inside the tree of individual 140 directories. Set MAKESYSPATH to ".../share/mk" to do that. 141 Although this has survived make universe and some upgrade scenarios, 142 other upgrade scenarios may have broken. At least one form of 143 temporary breakage was fixed with MAKESYSPATH settings for buildworld 144 as well... In cases where MAKESYSPATH isn't working with this 145 setting, you'll need to set it to the full path to your tree. 146 147 One side effect of all this cleaning up is that bsd.compiler.mk 148 is no longer implicitly included by bsd.own.mk. If you wish to 149 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 150 as well. 151 15220140430: 153 The lindev device has been removed since /dev/full has been made a 154 standard device. __FreeBSD_version has been bumped. 155 15620140418: 157 The YES_HESIOD knob has been removed. It has been obsolete for 158 a decade. Please move to using WITH_HESIOD instead or your builds 159 will silently lack HESIOD. 160 16120140405: 162 The uart(4) driver has been changed with respect to its handling 163 of the low-level console. Previously the uart(4) driver prevented 164 any process from changing the baudrate or the CLOCAL and HUPCL 165 control flags. By removing the restrictions, operators can make 166 changes to the serial console port without having to reboot. 167 However, when getty(8) is started on the serial device that is 168 associated with the low-level console, a misconfigured terminal 169 line in /etc/ttys will now have a real impact. 170 Before upgrading the kernel, make sure that /etc/ttys has the 171 serial console device configured as 3wire without baudrate to 172 preserve the previous behaviour. E.g: 173 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 174 17520140306: 176 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 177 to improve performance. To re-enable it, if needed, run rpcbind 178 with command line option -W. 179 18020140226: 181 Switched back to the GPL dtc compiler due to updates in the upstream 182 dts files not being supported by the BSDL dtc compiler. You will need 183 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 184 may result while building dtb files during a kernel build if you fail 185 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 186 18720140216: 188 Clang and llvm have been upgraded to 3.4 release. 189 19020140216: 191 The nve(4) driver has been removed. Please use the nfe(4) driver 192 for NVIDIA nForce MCP Ethernet adapters instead. 193 19420140212: 195 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 196 This could cause certain C++ applications using shared libraries built 197 against the previous version of libc++ to crash. The incompatibility 198 has now been fixed, but any C++ applications or shared libraries built 199 between r261283 and r261801 should be recompiled. 200 20120140204: 202 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 203 capability mode support. Please note that enabling the feature in 204 kernel is still highly recommended. 205 20620140131: 207 OpenSSH is now built with sandbox support, and will use sandbox as 208 the default privilege separation method. This requires Capsicum 209 capability mode support in kernel. 210 21120140128: 212 The libelf and libdwarf libraries have been updated to newer 213 versions from upstream. Shared library version numbers for 214 these two libraries were bumped. Any ports or binaries 215 requiring these two libraries should be recompiled. 216 __FreeBSD_version is bumped to 1100006. 217 21820140110: 219 If a Makefile in a tests/ directory was auto-generating a Kyuafile 220 instead of providing an explicit one, this would prevent such 221 Makefile from providing its own Kyuafile in the future during 222 NO_CLEAN builds. This has been fixed in the Makefiles but manual 223 intervention is needed to clean an objdir if you use NO_CLEAN: 224 # find /usr/obj -name Kyuafile | xargs rm -f 225 22620131213: 227 The behavior of gss_pseudo_random() for the krb5 mechanism 228 has changed, for applications requesting a longer random string 229 than produced by the underlying enctype's pseudo-random() function. 230 In particular, the random string produced from a session key of 231 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 232 be different at the 17th octet and later, after this change. 233 The counter used in the PRF+ construction is now encoded as a 234 big-endian integer in accordance with RFC 4402. 235 __FreeBSD_version is bumped to 1100004. 236 23720131108: 238 The WITHOUT_ATF build knob has been removed and its functionality 239 has been subsumed into the more generic WITHOUT_TESTS. If you were 240 using the former to disable the build of the ATF libraries, you 241 should change your settings to use the latter. 242 24320131025: 244 The default version of mtree is nmtree which is obtained from 245 NetBSD. The output is generally the same, but may vary 246 slightly. If you found you need identical output adding 247 "-F freebsd9" to the command line should do the trick. For the 248 time being, the old mtree is available as fmtree. 249 25020131014: 251 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 252 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 253 1.1.4_8 and verify bsdyml not linked in, before running "make 254 delete-old-libs": 255 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 256 or 257 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 258 25920131010: 260 The rc.d/jail script has been updated to support jail(8) 261 configuration file. The "jail_<jname>_*" rc.conf(5) variables 262 for per-jail configuration are automatically converted to 263 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 264 This is transparently backward compatible. See below about some 265 incompatibilities and rc.conf(5) manual page for more details. 266 267 These variables are now deprecated in favor of jail(8) configuration 268 file. One can use "rc.d/jail config <jname>" command to generate 269 a jail(8) configuration file in /var/run/jail.<jname>.conf without 270 running the jail(8) utility. The default pathname of the 271 configuration file is /etc/jail.conf and can be specified by 272 using $jail_conf or $jail_<jname>_conf variables. 273 274 Please note that jail_devfs_ruleset accepts an integer at 275 this moment. Please consider to rewrite the ruleset name 276 with an integer. 277 27820130930: 279 BIND has been removed from the base system. If all you need 280 is a local resolver, simply enable and start the local_unbound 281 service instead. Otherwise, several versions of BIND are 282 available in the ports tree. The dns/bind99 port is one example. 283 284 With this change, nslookup(1) and dig(1) are no longer in the base 285 system. Users should instead use host(1) and drill(1) which are 286 in the base system. Alternatively, nslookup and dig can 287 be obtained by installing the dns/bind-tools port. 288 28920130916: 290 With the addition of unbound(8), a new unbound user is now 291 required during installworld. "mergemaster -p" can be used to 292 add the user prior to installworld, as documented in the handbook. 293 29420130911: 295 OpenSSH is now built with DNSSEC support, and will by default 296 silently trust signed SSHFP records. This can be controlled with 297 the VerifyHostKeyDNS client configuration setting. DNSSEC support 298 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 299 30020130906: 301 The GNU Compiler Collection and C++ standard library (libstdc++) 302 are no longer built by default on platforms where clang is the system 303 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 304 options in src.conf. 305 30620130905: 307 The PROCDESC kernel option is now part of the GENERIC kernel 308 configuration and is required for the rwhod(8) to work. 309 If you are using custom kernel configuration, you should include 310 'options PROCDESC'. 311 31220130905: 313 The API and ABI related to the Capsicum framework was modified 314 in backward incompatible way. The userland libraries and programs 315 have to be recompiled to work with the new kernel. This includes the 316 following libraries and programs, but the whole buildworld is 317 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 318 kdump, procstat, rwho, rwhod, uniq. 319 32020130903: 321 AES-NI intrinsic support has been added to gcc. The AES-NI module 322 has been updated to use this support. A new gcc is required to build 323 the aesni module on both i386 and amd64. 324 32520130821: 326 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 327 Thus "device padlock_rng" and "device rdrand_rng" should be 328 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 329 33020130813: 331 WITH_ICONV has been split into two feature sets. WITH_ICONV now 332 enables just the iconv* functionality and is now on by default. 333 WITH_LIBICONV_COMPAT enables the libiconv api and link time 334 compatability. Set WITHOUT_ICONV to build the old way. 335 If you have been using WITH_ICONV before, you will very likely 336 need to turn on WITH_LIBICONV_COMPAT. 337 33820130806: 339 INVARIANTS option now enables DEBUG for code with OpenSolaris and 340 Illumos origin, including ZFS. If you have INVARIANTS in your 341 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 342 explicitly. 343 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 344 locks if WITNESS option was set. Because that generated a lot of 345 witness(9) reports and all of them were believed to be false 346 positives, this is no longer done. New option OPENSOLARIS_WITNESS 347 can be used to achieve the previous behavior. 348 34920130806: 350 Timer values in IPv6 data structures now use time_uptime instead 351 of time_second. Although this is not a user-visible functional 352 change, userland utilities which directly use them---ndp(8), 353 rtadvd(8), and rtsold(8) in the base system---need to be updated 354 to r253970 or later. 355 35620130802: 357 find -delete can now delete the pathnames given as arguments, 358 instead of only files found below them or if the pathname did 359 not contain any slashes. Formerly, the following error message 360 would result: 361 362 find: -delete: <path>: relative path potentially not safe 363 364 Deleting the pathnames given as arguments can be prevented 365 without error messages using -mindepth 1 or by changing 366 directory and passing "." as argument to find. This works in the 367 old as well as the new version of find. 368 36920130726: 370 Behavior of devfs rules path matching has been changed. 371 Pattern is now always matched against fully qualified devfs 372 path and slash characters must be explicitly matched by 373 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 374 subdirectories must be reviewed. 375 37620130716: 377 The default ARM ABI has changed to the ARM EABI. The old ABI is 378 incompatible with the ARM EABI and all programs and modules will 379 need to be rebuilt to work with a new kernel. 380 381 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 382 383 NOTE: Support for the old ABI will be removed in the future and 384 users are advised to upgrade. 385 38620130709: 387 pkg_install has been disconnected from the build if you really need it 388 you should add WITH_PKGTOOLS in your src.conf(5). 389 39020130709: 391 Most of network statistics structures were changed to be able 392 keep 64-bits counters. Thus all tools, that work with networking 393 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 394 39520130629: 396 Fix targets that run multiple make's to use && rather than ; 397 so that subsequent steps depend on success of previous. 398 399 NOTE: if building 'universe' with -j* on stable/8 or stable/9 400 it would be better to start the build using bmake, to avoid 401 overloading the machine. 402 40320130618: 404 Fix a bug that allowed a tracing process (e.g. gdb) to write 405 to a memory-mapped file in the traced process's address space 406 even if neither the traced process nor the tracing process had 407 write access to that file. 408 40920130615: 410 CVS has been removed from the base system. An exact copy 411 of the code is available from the devel/cvs port. 412 41320130613: 414 Some people report the following error after the switch to bmake: 415 416 make: illegal option -- J 417 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 418 ... 419 *** [buildworld] Error code 2 420 421 this likely due to an old instance of make in 422 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 423 which src/Makefile will use that blindly, if it exists, so if 424 you see the above error: 425 426 rm -rf `make -V MAKEPATH` 427 428 should resolve it. 429 43020130516: 431 Use bmake by default. 432 Whereas before one could choose to build with bmake via 433 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 434 make. The goal is to remove these knobs for 10-RELEASE. 435 436 It is worth noting that bmake (like gmake) treats the command 437 line as the unit of failure, rather than statements within the 438 command line. Thus '(cd some/where && dosomething)' is safer 439 than 'cd some/where; dosomething'. The '()' allows consistent 440 behavior in parallel build. 441 44220130429: 443 Fix a bug that allows NFS clients to issue READDIR on files. 444 44520130426: 446 The WITHOUT_IDEA option has been removed because 447 the IDEA patent expired. 448 44920130426: 450 The sysctl which controls TRIM support under ZFS has been renamed 451 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 452 enabled by default. 453 45420130425: 455 The mergemaster command now uses the default MAKEOBJDIRPREFIX 456 rather than creating it's own in the temporary directory in 457 order allow access to bootstrapped versions of tools such as 458 install and mtree. When upgrading from version of FreeBSD where 459 the install command does not support -l, you will need to 460 install a new mergemaster command if mergemaster -p is required. 461 This can be accomplished with the command (cd src/usr.sbin/mergemaster 462 && make install). 463 46420130404: 465 Legacy ATA stack, disabled and replaced by new CAM-based one since 466 FreeBSD 9.0, completely removed from the sources. Kernel modules 467 atadisk and atapi*, user-level tools atacontrol and burncd are 468 removed. Kernel option `options ATA_CAM` is now permanently enabled 469 and removed. 470 47120130319: 472 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 473 and socketpair(2). Software, in particular Kerberos, may 474 automatically detect and use these during building. The resulting 475 binaries will not work on older kernels. 476 47720130308: 478 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 479 information, see the respective 20130304 entry). 480 48120130304: 482 Recent commits to callout(9) changed the size of struct callout, 483 so the KBI is probably heavily disturbed. Also, some functions 484 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 485 by macros. Every kernel module using it won't load, so rebuild 486 is requested. 487 488 The ctl device has been re-enabled in GENERIC for i386 and amd64, 489 but does not initialize by default (because of the new CTL_DISABLE 490 option) to save memory. To re-enable it, remove the CTL_DISABLE 491 option from the kernel config file or set kern.cam.ctl.disable=0 492 in /boot/loader.conf. 493 49420130301: 495 The ctl device has been disabled in GENERIC for i386 and amd64. 496 This was done due to the extra memory being allocated at system 497 initialisation time by the ctl driver which was only used if 498 a CAM target device was created. This makes a FreeBSD system 499 unusable on 128MB or less of RAM. 500 50120130208: 502 A new compression method (lz4) has been merged to -HEAD. Please 503 refer to zpool-features(7) for more information. 504 505 Please refer to the "ZFS notes" section of this file for information 506 on upgrading boot ZFS pools. 507 50820130129: 509 A BSD-licensed patch(1) variant has been added and is installed 510 as bsdpatch, being the GNU version the default patch. 511 To inverse the logic and use the BSD-licensed one as default, 512 while having the GNU version installed as gnupatch, rebuild 513 and install world with the WITH_BSD_PATCH knob set. 514 51520130121: 516 Due to the use of the new -l option to install(1) during build 517 and install, you must take care not to directly set the INSTALL 518 make variable in your /etc/make.conf, /etc/src.conf, or on the 519 command line. If you wish to use the -C flag for all installs 520 you may be able to add INSTALL+=-C to /etc/make.conf or 521 /etc/src.conf. 522 52320130118: 524 The install(1) option -M has changed meaning and now takes an 525 argument that is a file or path to append logs to. In the 526 unlikely event that -M was the last option on the command line 527 and the command line contained at least two files and a target 528 directory the first file will have logs appended to it. The -M 529 option served little practical purpose in the last decade so its 530 use is expected to be extremely rare. 531 53220121223: 533 After switching to Clang as the default compiler some users of ZFS 534 on i386 systems started to experience stack overflow kernel panics. 535 Please consider using 'options KSTACK_PAGES=4' in such configurations. 536 53720121222: 538 GEOM_LABEL now mangles label names read from file system metadata. 539 Mangling affect labels containing spaces, non-printable characters, 540 '%' or '"'. Device names in /etc/fstab and other places may need to 541 be updated. 542 54320121217: 544 By default, only the 10 most recent kernel dumps will be saved. To 545 restore the previous behaviour (no limit on the number of kernel dumps 546 stored in the dump directory) add the following line to /etc/rc.conf: 547 548 savecore_flags="" 549 55020121201: 551 With the addition of auditdistd(8), a new auditdistd user is now 552 required during installworld. "mergemaster -p" can be used to 553 add the user prior to installworld, as documented in the handbook. 554 55520121117: 556 The sin6_scope_id member variable in struct sockaddr_in6 is now 557 filled by the kernel before passing the structure to the userland via 558 sysctl or routing socket. This means the KAME-specific embedded scope 559 id in sin6_addr.s6_addr[2] is always cleared in userland application. 560 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 561 __FreeBSD_version is bumped to 1000025. 562 56320121105: 564 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 565 This means that the world and kernel will be compiled with clang 566 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 567 and /usr/bin/cpp. To disable this behavior and revert to building 568 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 569 of current may need to bootstrap WITHOUT_CLANG first if the clang 570 build fails (its compatibility window doesn't extend to the 9 stable 571 branch point). 572 57320121102: 574 The IPFIREWALL_FORWARD kernel option has been removed. Its 575 functionality now turned on by default. 576 57720121023: 578 The ZERO_COPY_SOCKET kernel option has been removed and 579 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 580 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 581 mechanism which is not safe and may result in kernel crashes. 582 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 583 driver supports disposeable external page sized mbuf storage. 584 Proper replacements for both zero-copy mechanisms are under 585 consideration and will eventually lead to complete removal 586 of the two kernel options. 587 58820121023: 589 The IPv4 network stack has been converted to network byte 590 order. The following modules need to be recompiled together 591 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 592 pf(4), ipfw(4), ng_ipfw(4), stf(4). 593 59420121022: 595 Support for non-MPSAFE filesystems was removed from VFS. The 596 VFS_VERSION was bumped, all filesystem modules shall be 597 recompiled. 598 59920121018: 600 All the non-MPSAFE filesystems have been disconnected from 601 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 602 portalfs, smbfs, xfs. 603 60420121016: 605 The interface cloning API and ABI has changed. The following 606 modules need to be recompiled together with kernel: 607 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 608 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 609 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 610 61120121015: 612 The sdhci driver was split in two parts: sdhci (generic SD Host 613 Controller logic) and sdhci_pci (actual hardware driver). 614 No kernel config modifications are required, but if you 615 load sdhc as a module you must switch to sdhci_pci instead. 616 61720121014: 618 Import the FUSE kernel and userland support into base system. 619 62020121013: 621 The GNU sort(1) program has been removed since the BSD-licensed 622 sort(1) has been the default for quite some time and no serious 623 problems have been reported. The corresponding WITH_GNU_SORT 624 knob has also gone. 625 62620121006: 627 The pfil(9) API/ABI for AF_INET family has been changed. Packet 628 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 629 with new kernel. 630 63120121001: 632 The net80211(4) ABI has been changed to allow for improved driver 633 PS-POLL and power-save support. All wireless drivers need to be 634 recompiled to work with the new kernel. 635 63620120913: 637 The random(4) support for the VIA hardware random number 638 generator (`PADLOCK') is no longer enabled unconditionally. 639 Add the padlock_rng device in the custom kernel config if 640 needed. The GENERIC kernels on i386 and amd64 do include the 641 device, so the change only affects the custom kernel 642 configurations. 643 64420120908: 645 The pf(4) packet filter ABI has been changed. pfctl(8) and 646 snmp_pf module need to be recompiled to work with new kernel. 647 64820120828: 649 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 650 to -HEAD. Pools that have empty_bpobj in active state can not be 651 imported read-write with ZFS implementations that do not support 652 this feature. For more information read the zpool-features(5) 653 manual page. 654 65520120727: 656 The sparc64 ZFS loader has been changed to no longer try to auto- 657 detect ZFS providers based on diskN aliases but now requires these 658 to be explicitly listed in the OFW boot-device environment variable. 659 66020120712: 661 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 662 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 663 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 664 66520120712: 666 The following sysctls and tunables have been renamed for consistency 667 with other variables: 668 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 669 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 670 67120120628: 672 The sort utility has been replaced with BSD sort. For now, GNU sort 673 is also available as "gnusort" or the default can be set back to 674 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 675 installed as "bsdsort". 676 67720120611: 678 A new version of ZFS (pool version 5000) has been merged to -HEAD. 679 Starting with this version the old system of ZFS pool versioning 680 is superseded by "feature flags". This concept enables forward 681 compatibility against certain future changes in functionality of ZFS 682 pools. The first read-only compatible "feature flag" for ZFS pools 683 is named "com.delphix:async_destroy". For more information 684 read the new zpool-features(5) manual page. 685 Please refer to the "ZFS notes" section of this file for information 686 on upgrading boot ZFS pools. 687 68820120417: 689 The malloc(3) implementation embedded in libc now uses sources imported 690 as contrib/jemalloc. The most disruptive API change is to 691 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 692 delete it prior to installworld, and optionally re-create it using the 693 new format after rebooting. See malloc.conf(5) for details 694 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 695 NAMESPACE section). 696 69720120328: 698 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 699 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 700 now spelled mips. This is to aid compatibility with third-party 701 software that expects this naming scheme in uname(3). Little-endian 702 settings are unchanged. If you are updating a big-endian mips64 machine 703 from before this change, you may need to set MACHINE_ARCH=mips64 in 704 your environment before the new build system will recognize your machine. 705 70620120306: 707 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 708 platforms. 709 71020120229: 711 Now unix domain sockets behave "as expected" on nullfs(5). Previously 712 nullfs(5) did not pass through all behaviours to the underlying layer, 713 as a result if we bound to a socket on the lower layer we could connect 714 only to the lower path; if we bound to the upper layer we could connect 715 only to the upper path. The new behavior is one can connect to both the 716 lower and the upper paths regardless what layer path one binds to. 717 71820120211: 719 The getifaddrs upgrade path broken with 20111215 has been restored. 720 If you have upgraded in between 20111215 and 20120209 you need to 721 recompile libc again with your kernel. You still need to recompile 722 world to be able to configure CARP but this restriction already 723 comes from 20111215. 724 72520120114: 726 The set_rcvar() function has been removed from /etc/rc.subr. All 727 base and ports rc.d scripts have been updated, so if you have a 728 port installed with a script in /usr/local/etc/rc.d you can either 729 hand-edit the rcvar= line, or reinstall the port. 730 731 An easy way to handle the mass-update of /etc/rc.d: 732 rm /etc/rc.d/* && mergemaster -i 733 73420120109: 735 panic(9) now stops other CPUs in the SMP systems, disables interrupts 736 on the current CPU and prevents other threads from running. 737 This behavior can be reverted using the kern.stop_scheduler_on_panic 738 tunable/sysctl. 739 The new behavior can be incompatible with kern.sync_on_panic. 740 74120111215: 742 The carp(4) facility has been changed significantly. Configuration 743 of the CARP protocol via ifconfig(8) has changed, as well as format 744 of CARP events submitted to devd(8) has changed. See manual pages 745 for more information. The arpbalance feature of carp(4) is currently 746 not supported anymore. 747 748 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 749 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 750 need to be recompiled. 751 75220111122: 753 The acpi_wmi(4) status device /dev/wmistat has been renamed to 754 /dev/wmistat0. 755 75620111108: 757 The option VFS_ALLOW_NONMPSAFE option has been added in order to 758 explicitely support non-MPSAFE filesystems. 759 It is on by default for all supported platform at this present 760 time. 761 76220111101: 763 The broken amd(4) driver has been replaced with esp(4) in the amd64, 764 i386 and pc98 GENERIC kernel configuration files. 765 76620110930: 767 sysinstall has been removed 768 76920110923: 770 The stable/9 branch created in subversion. This corresponds to the 771 RELENG_9 branch in CVS. 772 773COMMON ITEMS: 774 775 General Notes 776 ------------- 777 Avoid using make -j when upgrading. While generally safe, there are 778 sometimes problems using -j to upgrade. If your upgrade fails with 779 -j, please try again without -j. From time to time in the past there 780 have been problems using -j with buildworld and/or installworld. This 781 is especially true when upgrading between "distant" versions (eg one 782 that cross a major release boundary or several minor releases, or when 783 several months have passed on the -current branch). 784 785 Sometimes, obscure build problems are the result of environment 786 poisoning. This can happen because the make utility reads its 787 environment when searching for values for global variables. To run 788 your build attempts in an "environmental clean room", prefix all make 789 commands with 'env -i '. See the env(1) manual page for more details. 790 791 When upgrading from one major version to another it is generally best 792 to upgrade to the latest code in the currently installed branch first, 793 then do an upgrade to the new branch. This is the best-tested upgrade 794 path, and has the highest probability of being successful. Please try 795 this approach before reporting problems with a major version upgrade. 796 797 When upgrading a live system, having a root shell around before 798 installing anything can help undo problems. Not having a root shell 799 around can lead to problems if pam has changed too much from your 800 starting point to allow continued authentication after the upgrade. 801 802 ZFS notes 803 --------- 804 When upgrading the boot ZFS pool to a new version, always follow 805 these two steps: 806 807 1.) recompile and reinstall the ZFS boot loader and boot block 808 (this is part of "make buildworld" and "make installworld") 809 810 2.) update the ZFS boot block on your boot drive 811 812 The following example updates the ZFS boot block on the first 813 partition (freebsd-boot) of a GPT partitioned drive ad0: 814 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 815 816 Non-boot pools do not need these updates. 817 818 To build a kernel 819 ----------------- 820 If you are updating from a prior version of FreeBSD (even one just 821 a few days old), you should follow this procedure. It is the most 822 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 823 824 make kernel-toolchain 825 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 826 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 827 828 To test a kernel once 829 --------------------- 830 If you just want to boot a kernel once (because you are not sure 831 if it works, or if you want to boot a known bad kernel to provide 832 debugging information) run 833 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 834 nextboot -k testkernel 835 836 To just build a kernel when you know that it won't mess you up 837 -------------------------------------------------------------- 838 This assumes you are already running a CURRENT system. Replace 839 ${arch} with the architecture of your machine (e.g. "i386", 840 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 841 842 cd src/sys/${arch}/conf 843 config KERNEL_NAME_HERE 844 cd ../compile/KERNEL_NAME_HERE 845 make depend 846 make 847 make install 848 849 If this fails, go to the "To build a kernel" section. 850 851 To rebuild everything and install it on the current system. 852 ----------------------------------------------------------- 853 # Note: sometimes if you are running current you gotta do more than 854 # is listed here if you are upgrading from a really old current. 855 856 <make sure you have good level 0 dumps> 857 make buildworld 858 make kernel KERNCONF=YOUR_KERNEL_HERE 859 [1] 860 <reboot in single user> [3] 861 mergemaster -Fp [5] 862 make installworld 863 mergemaster -Fi [4] 864 make delete-old [6] 865 <reboot> 866 867 To cross-install current onto a separate partition 868 -------------------------------------------------- 869 # In this approach we use a separate partition to hold 870 # current's root, 'usr', and 'var' directories. A partition 871 # holding "/", "/usr" and "/var" should be about 2GB in 872 # size. 873 874 <make sure you have good level 0 dumps> 875 <boot into -stable> 876 make buildworld 877 make buildkernel KERNCONF=YOUR_KERNEL_HERE 878 <maybe newfs current's root partition> 879 <mount current's root partition on directory ${CURRENT_ROOT}> 880 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 881 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 882 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 883 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 884 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 885 <reboot into current> 886 <do a "native" rebuild/install as described in the previous section> 887 <maybe install compatibility libraries from ports/misc/compat*> 888 <reboot> 889 890 891 To upgrade in-place from stable to current 892 ---------------------------------------------- 893 <make sure you have good level 0 dumps> 894 make buildworld [9] 895 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 896 [1] 897 <reboot in single user> [3] 898 mergemaster -Fp [5] 899 make installworld 900 mergemaster -Fi [4] 901 make delete-old [6] 902 <reboot> 903 904 Make sure that you've read the UPDATING file to understand the 905 tweaks to various things you need. At this point in the life 906 cycle of current, things change often and you are on your own 907 to cope. The defaults can also change, so please read ALL of 908 the UPDATING entries. 909 910 Also, if you are tracking -current, you must be subscribed to 911 freebsd-current@freebsd.org. Make sure that before you update 912 your sources that you have read and understood all the recent 913 messages there. If in doubt, please track -stable which has 914 much fewer pitfalls. 915 916 [1] If you have third party modules, such as vmware, you 917 should disable them at this point so they don't crash your 918 system on reboot. 919 920 [3] From the bootblocks, boot -s, and then do 921 fsck -p 922 mount -u / 923 mount -a 924 cd src 925 adjkerntz -i # if CMOS is wall time 926 Also, when doing a major release upgrade, it is required that 927 you boot into single user mode to do the installworld. 928 929 [4] Note: This step is non-optional. Failure to do this step 930 can result in a significant reduction in the functionality of the 931 system. Attempting to do it by hand is not recommended and those 932 that pursue this avenue should read this file carefully, as well 933 as the archives of freebsd-current and freebsd-hackers mailing lists 934 for potential gotchas. The -U option is also useful to consider. 935 See mergemaster(8) for more information. 936 937 [5] Usually this step is a noop. However, from time to time 938 you may need to do this if you get unknown user in the following 939 step. It never hurts to do it all the time. You may need to 940 install a new mergemaster (cd src/usr.sbin/mergemaster && make 941 install) after the buildworld before this step if you last updated 942 from current before 20130425 or from -stable before 20130430. 943 944 [6] This only deletes old files and directories. Old libraries 945 can be deleted by "make delete-old-libs", but you have to make 946 sure that no program is using those libraries anymore. 947 948 [8] In order to have a kernel that can run the 4.x binaries needed to 949 do an installworld, you must include the COMPAT_FREEBSD4 option in 950 your kernel. Failure to do so may leave you with a system that is 951 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 952 required to run the 5.x binaries on more recent kernels. And so on 953 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 954 955 Make sure that you merge any new devices from GENERIC since the 956 last time you updated your kernel config file. 957 958 [9] When checking out sources, you must include the -P flag to have 959 cvs prune empty directories. 960 961 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 962 "?=" instead of the "=" assignment operator, so that buildworld can 963 override the CPUTYPE if it needs to. 964 965 MAKEOBJDIRPREFIX must be defined in an environment variable, and 966 not on the command line, or in /etc/make.conf. buildworld will 967 warn if it is improperly defined. 968FORMAT: 969 970This file contains a list, in reverse chronological order, of major 971breakages in tracking -current. It is not guaranteed to be a complete 972list of such breakages, and only contains entries since October 10, 2007. 973If you need to see UPDATING entries from before that date, you will need 974to fetch an UPDATING file from an older FreeBSD release. 975 976Copyright information: 977 978Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 979 980Redistribution, publication, translation and use, with or without 981modification, in full or in part, in any form or format of this 982document are permitted without further permission from the author. 983 984THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 985IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 986WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 987DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 988INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 989(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 990SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 991HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 992STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 993IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 994POSSIBILITY OF SUCH DAMAGE. 995 996Contact Warner Losh if you have any questions about your use of 997this document. 998 999$FreeBSD$ 1000