UPDATING revision 284464
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 3420150616: 35 FreeBSD's old make (fmake) has been removed from the system. It is 36 available as the devel/fmake port or via pkg install fmake. 37 3820150615: 39 The fix for the issue described in the 20150614 sendmail entry 40 below has been been committed in revision 284436. The work 41 around described in that entry is no longer needed unless the 42 default setting is overridden by a confDH_PARAMETERS configuration 43 setting of '5' or pointing to a 512 bit DH parameter file. 44 4520150614: 46 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 47 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 48 and devel/kyua to version 0.20+ and adjust any calling code to work 49 with Kyuafile and kyua. 50 5120150614: 52 The import of openssl to address the FreeBSD-SA-15:10.openssl 53 security advisory includes a change which rejects handshakes 54 with DH parameters below 768 bits. sendmail releases prior 55 to 8.15.2 (not yet released), defaulted to a 512 bit 56 DH parameter setting for client connections. To work around 57 this interoperability, sendmail can be configured to use a 58 2048 bit DH parameter by: 59 60 1. Edit /etc/mail/`hostname`.mc 61 2. If a setting for confDH_PARAMETERS does not exist or 62 exists and is set to a string beginning with '5', 63 replace it with '2'. 64 3. If a setting for confDH_PARAMETERS exists and is set to 65 a file path, create a new file with: 66 openssl dhparam -out /path/to/file 2048 67 4. Rebuild the .cf file: 68 cd /etc/mail/; make; make install 69 5. Restart sendmail: 70 cd /etc/mail/; make restart 71 72 A sendmail patch is coming, at which time this file will be 73 updated. 74 7520150604: 76 Generation of legacy formatted entries have been disabled by default 77 in pwd_mkdb(8), as all base system consumers of the legacy formatted 78 entries were converted to use the new format by default when the new, 79 machine independent format have been added and supported since FreeBSD 80 5.x. 81 82 Please see the pwd_mkdb(8) manual page for further details. 83 8420150525: 85 Clang and llvm have been upgraded to 3.6.1 release. Please see the 86 20141231 entry below for information about prerequisites and upgrading, 87 if you are not already using 3.5.0 or higher. 88 8920150521: 90 TI platform code switched to using vendor DTS files and this update 91 may break existing systems running on Beaglebone, Beaglebone Black, 92 and Pandaboard: 93 94 - dtb files should be regenerated/reinstalled. Filenames are the 95 same but content is different now 96 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 97 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 98 addressing scheme is now pin 25 on /dev/gpioc3. 99 - Pandaboard: /etc/ttys should be updated, serial console device is 100 now /dev/ttyu2, not /dev/ttyu0 101 10220150501: 103 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 104 If you need the GNU extension from groff soelim(1), install groff 105 from package: pkg install groff, or via ports: textproc/groff. 106 10720150423: 108 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 109 defined in symlink(7); previously symlinks were silently ignored. 110 11120150415: 112 The const qualifier has been removed from iconv(3) to comply with 113 POSIX. The ports tree is aware of this from r384038 onwards. 114 11520150416: 116 Libraries specified by LIBADD in Makefiles must have a corresponding 117 DPADD_<lib> variable to ensure correct dependencies. This is now 118 enforced in src.libnames.mk. 119 12020150324: 121 From legacy ata(4) driver was removed support for SATA controllers 122 supported by more functional drivers ahci(4), siis(4) and mvs(4). 123 Kernel modules ataahci and ataadaptec were removed completely, 124 replaced by ahci and mvs modules respectively. 125 12620150315: 127 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 128 the 20141231 entry below for information about prerequisites and 129 upgrading, if you are not already using 3.5.0 or higher. 130 13120150307: 132 The 32-bit PowerPC kernel has been changed to a position-independent 133 executable. This can only be booted with a version of loader(8) 134 newer than January 31, 2015, so make sure to update both world and 135 kernel before rebooting. 136 13720150217: 138 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 139 but before r278950, the RNG was not seeded properly. Immediately 140 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 141 ssh keys or openssl keys) that were generated w/ a kernel from that 142 range. This does not affect programs that directly used /dev/random 143 or /dev/urandom. All userland uses of arc4random(3) are affected. 144 14520150210: 146 The autofs(4) ABI was changed in order to restore binary compatibility 147 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 148 with the new kernel. 149 15020150131: 151 The powerpc64 kernel has been changed to a position-independent 152 executable. This can only be booted with a new version of loader(8), 153 so make sure to update both world and kernel before rebooting. 154 15520150118: 156 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 157 only release, no new features have been added. Please see the 20141231 158 entry below for information about prerequisites and upgrading, if you 159 are not already using 3.5.0. 160 16120150107: 162 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 163 taken from the ELF Tool Chain project rather than GNU binutils. They 164 should be drop-in replacements, with the addition of arm64 support. 165 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 166 binutils tools, if necessary. 167 16820150105: 169 The default Unbound configuration now enables remote control 170 using a local socket. Users who have already enabled the 171 local_unbound service should regenerate their configuration 172 by running "service local_unbound setup" as root. 173 17420150102: 175 The GNU texinfo and GNU info pages have been removed. 176 To be able to view GNU info pages please install texinfo from ports. 177 17820141231: 179 Clang, llvm and lldb have been upgraded to 3.5.0 release. 180 181 As of this release, a prerequisite for building clang, llvm and lldb is 182 a C++11 capable compiler and C++11 standard library. This means that to 183 be able to successfully build the cross-tools stage of buildworld, with 184 clang as the bootstrap compiler, your system compiler or cross compiler 185 should either be clang 3.3 or later, or gcc 4.8 or later, and your 186 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 187 later. 188 189 On any standard FreeBSD 10.x or 11.x installation, where clang and 190 libc++ are on by default (that is, on x86 or arm), this should work out 191 of the box. 192 193 On 9.x installations where clang is enabled by default, e.g. on x86 and 194 powerpc, libc++ will not be enabled by default, so libc++ should be 195 built (with clang) and installed first. If both clang and libc++ are 196 missing, build clang first, then use it to build libc++. 197 198 On 8.x and earlier installations, upgrade to 9.x first, and then follow 199 the instructions for 9.x above. 200 201 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 202 default, and do not build clang. 203 204 Many embedded systems are resource constrained, and will not be able to 205 build clang in a reasonable time, or in some cases at all. In those 206 cases, cross building bootable systems on amd64 is a workaround. 207 208 This new version of clang introduces a number of new warnings, of which 209 the following are most likely to appear: 210 211 -Wabsolute-value 212 213 This warns in two cases, for both C and C++: 214 * When the code is trying to take the absolute value of an unsigned 215 quantity, which is effectively a no-op, and almost never what was 216 intended. The code should be fixed, if at all possible. If you are 217 sure that the unsigned quantity can be safely cast to signed, without 218 loss of information or undefined behavior, you can add an explicit 219 cast, or disable the warning. 220 221 * When the code is trying to take an absolute value, but the called 222 abs() variant is for the wrong type, which can lead to truncation. 223 If you want to disable the warning instead of fixing the code, please 224 make sure that truncation will not occur, or it might lead to unwanted 225 side-effects. 226 227 -Wtautological-undefined-compare and 228 -Wundefined-bool-conversion 229 230 These warn when C++ code is trying to compare 'this' against NULL, while 231 'this' should never be NULL in well-defined C++ code. However, there is 232 some legacy (pre C++11) code out there, which actively abuses this 233 feature, which was less strictly defined in previous C++ versions. 234 235 Squid and openjdk do this, for example. The warning can be turned off 236 for C++98 and earlier, but compiling the code in C++11 mode might result 237 in unexpected behavior; for example, the parts of the program that are 238 unreachable could be optimized away. 239 24020141222: 241 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 242 kernel sources have been removed. The .h files remain, since some 243 utilities include them. This will need to be fixed later. 244 If "mount -t oldnfs ..." is attempted, it will fail. 245 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 246 the utilities will report errors. 247 24820141121: 249 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 250 directories to top level SUBDIR variable when their parent 251 directory is included in LOCAL_DIRS. Users with build systems with 252 such hierarchies and without SUBDIR entries in the parent 253 directory Makefiles should add them or add the directories to 254 LOCAL_DIRS. 255 25620141109: 257 faith(4) and faithd(8) have been removed from the base system. Faith 258 has been obsolete for a very long time. 259 26020141104: 261 vt(4), the new console driver, is enabled by default. It brings 262 support for Unicode and double-width characters, as well as 263 support for UEFI and integration with the KMS kernel video 264 drivers. 265 266 You may need to update your console settings in /etc/rc.conf, 267 most probably the keymap. During boot, /etc/rc.d/syscons will 268 indicate what you need to do. 269 270 vt(4) still has issues and lacks some features compared to 271 syscons(4). See the wiki for up-to-date information: 272 https://wiki.freebsd.org/Newcons 273 274 If you want to keep using syscons(4), you can do so by adding 275 the following line to /boot/loader.conf: 276 kern.vty=sc 277 27820141102: 279 pjdfstest has been integrated into kyua as an opt-in test suite. 280 Please see share/doc/pjdfstest/README for more details on how to 281 execute it. 282 28320141009: 284 gperf has been removed from the base system for architectures 285 that use clang. Ports that require gperf will obtain it from the 286 devel/gperf port. 287 28820140923: 289 pjdfstest has been moved from tools/regression/pjdfstest to 290 contrib/pjdfstest . 291 29220140922: 293 At svn r271982, The default linux compat kernel ABI has been adjusted 294 to 2.6.18 in support of the linux-c6 compat ports infrastructure 295 update. If you wish to continue using the linux-f10 compat ports, 296 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 297 encouraged to update their linux-compat packages to linux-c6 during 298 their next update cycle. 299 30020140729: 301 The ofwfb driver, used to provide a graphics console on PowerPC when 302 using vt(4), no longer allows mmap() of all physical memory. This 303 will prevent Xorg on PowerPC with some ATI graphics cards from 304 initializing properly unless x11-servers/xorg-server is updated to 305 1.12.4_8 or newer. 306 30720140723: 308 The xdev targets have been converted to using TARGET and 309 TARGET_ARCH instead of XDEV and XDEV_ARCH. 310 31120140719: 312 The default unbound configuration has been modified to address 313 issues with reverse lookups on networks that use private 314 address ranges. If you use the local_unbound service, run 315 "service local_unbound setup" as root to regenerate your 316 configuration, then "service local_unbound reload" to load the 317 new configuration. 318 31920140709: 320 The GNU texinfo and GNU info pages are not built and installed 321 anymore, WITH_INFO knob has been added to allow to built and install 322 them again. 323 UPDATE: see 20150102 entry on texinfo's removal 324 32520140708: 326 The GNU readline library is now an INTERNALLIB - that is, it is 327 statically linked into consumers (GDB and variants) in the base 328 system, and the shared library is no longer installed. The 329 devel/readline port is available for third party software that 330 requires readline. 331 33220140702: 333 The Itanium architecture (ia64) has been removed from the list of 334 known architectures. This is the first step in the removal of the 335 architecture. 336 33720140701: 338 Commit r268115 has added NFSv4.1 server support, merged from 339 projects/nfsv4.1-server. Since this includes changes to the 340 internal interfaces between the NFS related modules, a full 341 build of the kernel and modules will be necessary. 342 __FreeBSD_version has been bumped. 343 34420140629: 345 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 346 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 347 which differs from the behaviour controlled by this knob.) 348 34920140619: 350 Maximal length of the serial number in CTL was increased from 16 to 351 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 352 and ctld, need to be rebuilt to work with a new kernel. 353 35420140606: 355 The libatf-c and libatf-c++ major versions were downgraded to 0 and 356 1 respectively to match the upstream numbers. They were out of 357 sync because, when they were originally added to FreeBSD, the 358 upstream versions were not respected. These libraries are private 359 and not yet built by default, so renumbering them should be a 360 non-issue. However, unclean source trees will yield broken test 361 programs once the operator executes "make delete-old-libs" after a 362 "make installworld". 363 364 Additionally, the atf-sh binary was made private by moving it into 365 /usr/libexec/. Already-built shell test programs will keep the 366 path to the old binary so they will break after "make delete-old" 367 is run. 368 369 If you are using WITH_TESTS=yes (not the default), wipe the object 370 tree and rebuild from scratch to prevent spurious test failures. 371 This is only needed once: the misnumbered libraries and misplaced 372 binaries have been added to OptionalObsoleteFiles.inc so they will 373 be removed during a clean upgrade. 374 37520140512: 376 Clang and llvm have been upgraded to 3.4.1 release. 377 37820140508: 379 We bogusly installed src.opts.mk in /usr/share/mk. This file should 380 be removed to avoid issues in the future (and has been added to 381 ObsoleteFiles.inc). 382 38320140505: 384 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 385 past, it affected all builds that used the bsd.*.mk files. The old 386 behavior was a bug, but people may have relied upon it. To get this 387 behavior back, you can .include /etc/src.conf from /etc/make.conf 388 (which is still global and isn't changed). This also changes the 389 behavior of incremental builds inside the tree of individual 390 directories. Set MAKESYSPATH to ".../share/mk" to do that. 391 Although this has survived make universe and some upgrade scenarios, 392 other upgrade scenarios may have broken. At least one form of 393 temporary breakage was fixed with MAKESYSPATH settings for buildworld 394 as well... In cases where MAKESYSPATH isn't working with this 395 setting, you'll need to set it to the full path to your tree. 396 397 One side effect of all this cleaning up is that bsd.compiler.mk 398 is no longer implicitly included by bsd.own.mk. If you wish to 399 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 400 as well. 401 40220140430: 403 The lindev device has been removed since /dev/full has been made a 404 standard device. __FreeBSD_version has been bumped. 405 40620140424: 407 The knob WITHOUT_VI was added to the base system, which controls 408 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 409 in order to reorder files share/termcap and didn't build ex(1) as a 410 build tool, so building/installing with WITH_VI is highly advised for 411 build hosts for older releases. 412 413 This issue has been fixed in stable/9 and stable/10 in r277022 and 414 r276991, respectively. 415 41620140418: 417 The YES_HESIOD knob has been removed. It has been obsolete for 418 a decade. Please move to using WITH_HESIOD instead or your builds 419 will silently lack HESIOD. 420 42120140405: 422 The uart(4) driver has been changed with respect to its handling 423 of the low-level console. Previously the uart(4) driver prevented 424 any process from changing the baudrate or the CLOCAL and HUPCL 425 control flags. By removing the restrictions, operators can make 426 changes to the serial console port without having to reboot. 427 However, when getty(8) is started on the serial device that is 428 associated with the low-level console, a misconfigured terminal 429 line in /etc/ttys will now have a real impact. 430 Before upgrading the kernel, make sure that /etc/ttys has the 431 serial console device configured as 3wire without baudrate to 432 preserve the previous behaviour. E.g: 433 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 434 43520140306: 436 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 437 to improve performance. To re-enable it, if needed, run rpcbind 438 with command line option -W. 439 44020140226: 441 Switched back to the GPL dtc compiler due to updates in the upstream 442 dts files not being supported by the BSDL dtc compiler. You will need 443 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 444 may result while building dtb files during a kernel build if you fail 445 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 446 44720140216: 448 Clang and llvm have been upgraded to 3.4 release. 449 45020140216: 451 The nve(4) driver has been removed. Please use the nfe(4) driver 452 for NVIDIA nForce MCP Ethernet adapters instead. 453 45420140212: 455 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 456 This could cause certain C++ applications using shared libraries built 457 against the previous version of libc++ to crash. The incompatibility 458 has now been fixed, but any C++ applications or shared libraries built 459 between r261283 and r261801 should be recompiled. 460 46120140204: 462 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 463 capability mode support. Please note that enabling the feature in 464 kernel is still highly recommended. 465 46620140131: 467 OpenSSH is now built with sandbox support, and will use sandbox as 468 the default privilege separation method. This requires Capsicum 469 capability mode support in kernel. 470 47120140128: 472 The libelf and libdwarf libraries have been updated to newer 473 versions from upstream. Shared library version numbers for 474 these two libraries were bumped. Any ports or binaries 475 requiring these two libraries should be recompiled. 476 __FreeBSD_version is bumped to 1100006. 477 47820140110: 479 If a Makefile in a tests/ directory was auto-generating a Kyuafile 480 instead of providing an explicit one, this would prevent such 481 Makefile from providing its own Kyuafile in the future during 482 NO_CLEAN builds. This has been fixed in the Makefiles but manual 483 intervention is needed to clean an objdir if you use NO_CLEAN: 484 # find /usr/obj -name Kyuafile | xargs rm -f 485 48620131213: 487 The behavior of gss_pseudo_random() for the krb5 mechanism 488 has changed, for applications requesting a longer random string 489 than produced by the underlying enctype's pseudo-random() function. 490 In particular, the random string produced from a session key of 491 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 492 be different at the 17th octet and later, after this change. 493 The counter used in the PRF+ construction is now encoded as a 494 big-endian integer in accordance with RFC 4402. 495 __FreeBSD_version is bumped to 1100004. 496 49720131108: 498 The WITHOUT_ATF build knob has been removed and its functionality 499 has been subsumed into the more generic WITHOUT_TESTS. If you were 500 using the former to disable the build of the ATF libraries, you 501 should change your settings to use the latter. 502 50320131025: 504 The default version of mtree is nmtree which is obtained from 505 NetBSD. The output is generally the same, but may vary 506 slightly. If you found you need identical output adding 507 "-F freebsd9" to the command line should do the trick. For the 508 time being, the old mtree is available as fmtree. 509 51020131014: 511 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 512 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 513 1.1.4_8 and verify bsdyml not linked in, before running "make 514 delete-old-libs": 515 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 516 or 517 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 518 51920131010: 520 The rc.d/jail script has been updated to support jail(8) 521 configuration file. The "jail_<jname>_*" rc.conf(5) variables 522 for per-jail configuration are automatically converted to 523 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 524 This is transparently backward compatible. See below about some 525 incompatibilities and rc.conf(5) manual page for more details. 526 527 These variables are now deprecated in favor of jail(8) configuration 528 file. One can use "rc.d/jail config <jname>" command to generate 529 a jail(8) configuration file in /var/run/jail.<jname>.conf without 530 running the jail(8) utility. The default pathname of the 531 configuration file is /etc/jail.conf and can be specified by 532 using $jail_conf or $jail_<jname>_conf variables. 533 534 Please note that jail_devfs_ruleset accepts an integer at 535 this moment. Please consider to rewrite the ruleset name 536 with an integer. 537 53820130930: 539 BIND has been removed from the base system. If all you need 540 is a local resolver, simply enable and start the local_unbound 541 service instead. Otherwise, several versions of BIND are 542 available in the ports tree. The dns/bind99 port is one example. 543 544 With this change, nslookup(1) and dig(1) are no longer in the base 545 system. Users should instead use host(1) and drill(1) which are 546 in the base system. Alternatively, nslookup and dig can 547 be obtained by installing the dns/bind-tools port. 548 54920130916: 550 With the addition of unbound(8), a new unbound user is now 551 required during installworld. "mergemaster -p" can be used to 552 add the user prior to installworld, as documented in the handbook. 553 55420130911: 555 OpenSSH is now built with DNSSEC support, and will by default 556 silently trust signed SSHFP records. This can be controlled with 557 the VerifyHostKeyDNS client configuration setting. DNSSEC support 558 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 559 56020130906: 561 The GNU Compiler Collection and C++ standard library (libstdc++) 562 are no longer built by default on platforms where clang is the system 563 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 564 options in src.conf. 565 56620130905: 567 The PROCDESC kernel option is now part of the GENERIC kernel 568 configuration and is required for the rwhod(8) to work. 569 If you are using custom kernel configuration, you should include 570 'options PROCDESC'. 571 57220130905: 573 The API and ABI related to the Capsicum framework was modified 574 in backward incompatible way. The userland libraries and programs 575 have to be recompiled to work with the new kernel. This includes the 576 following libraries and programs, but the whole buildworld is 577 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 578 kdump, procstat, rwho, rwhod, uniq. 579 58020130903: 581 AES-NI intrinsic support has been added to gcc. The AES-NI module 582 has been updated to use this support. A new gcc is required to build 583 the aesni module on both i386 and amd64. 584 58520130821: 586 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 587 Thus "device padlock_rng" and "device rdrand_rng" should be 588 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 589 59020130813: 591 WITH_ICONV has been split into two feature sets. WITH_ICONV now 592 enables just the iconv* functionality and is now on by default. 593 WITH_LIBICONV_COMPAT enables the libiconv api and link time 594 compatability. Set WITHOUT_ICONV to build the old way. 595 If you have been using WITH_ICONV before, you will very likely 596 need to turn on WITH_LIBICONV_COMPAT. 597 59820130806: 599 INVARIANTS option now enables DEBUG for code with OpenSolaris and 600 Illumos origin, including ZFS. If you have INVARIANTS in your 601 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 602 explicitly. 603 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 604 locks if WITNESS option was set. Because that generated a lot of 605 witness(9) reports and all of them were believed to be false 606 positives, this is no longer done. New option OPENSOLARIS_WITNESS 607 can be used to achieve the previous behavior. 608 60920130806: 610 Timer values in IPv6 data structures now use time_uptime instead 611 of time_second. Although this is not a user-visible functional 612 change, userland utilities which directly use them---ndp(8), 613 rtadvd(8), and rtsold(8) in the base system---need to be updated 614 to r253970 or later. 615 61620130802: 617 find -delete can now delete the pathnames given as arguments, 618 instead of only files found below them or if the pathname did 619 not contain any slashes. Formerly, the following error message 620 would result: 621 622 find: -delete: <path>: relative path potentially not safe 623 624 Deleting the pathnames given as arguments can be prevented 625 without error messages using -mindepth 1 or by changing 626 directory and passing "." as argument to find. This works in the 627 old as well as the new version of find. 628 62920130726: 630 Behavior of devfs rules path matching has been changed. 631 Pattern is now always matched against fully qualified devfs 632 path and slash characters must be explicitly matched by 633 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 634 subdirectories must be reviewed. 635 63620130716: 637 The default ARM ABI has changed to the ARM EABI. The old ABI is 638 incompatible with the ARM EABI and all programs and modules will 639 need to be rebuilt to work with a new kernel. 640 641 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 642 643 NOTE: Support for the old ABI will be removed in the future and 644 users are advised to upgrade. 645 64620130709: 647 pkg_install has been disconnected from the build if you really need it 648 you should add WITH_PKGTOOLS in your src.conf(5). 649 65020130709: 651 Most of network statistics structures were changed to be able 652 keep 64-bits counters. Thus all tools, that work with networking 653 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 654 65520130629: 656 Fix targets that run multiple make's to use && rather than ; 657 so that subsequent steps depend on success of previous. 658 659 NOTE: if building 'universe' with -j* on stable/8 or stable/9 660 it would be better to start the build using bmake, to avoid 661 overloading the machine. 662 66320130618: 664 Fix a bug that allowed a tracing process (e.g. gdb) to write 665 to a memory-mapped file in the traced process's address space 666 even if neither the traced process nor the tracing process had 667 write access to that file. 668 66920130615: 670 CVS has been removed from the base system. An exact copy 671 of the code is available from the devel/cvs port. 672 67320130613: 674 Some people report the following error after the switch to bmake: 675 676 make: illegal option -- J 677 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 678 ... 679 *** [buildworld] Error code 2 680 681 this likely due to an old instance of make in 682 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 683 which src/Makefile will use that blindly, if it exists, so if 684 you see the above error: 685 686 rm -rf `make -V MAKEPATH` 687 688 should resolve it. 689 69020130516: 691 Use bmake by default. 692 Whereas before one could choose to build with bmake via 693 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 694 make. The goal is to remove these knobs for 10-RELEASE. 695 696 It is worth noting that bmake (like gmake) treats the command 697 line as the unit of failure, rather than statements within the 698 command line. Thus '(cd some/where && dosomething)' is safer 699 than 'cd some/where; dosomething'. The '()' allows consistent 700 behavior in parallel build. 701 70220130429: 703 Fix a bug that allows NFS clients to issue READDIR on files. 704 70520130426: 706 The WITHOUT_IDEA option has been removed because 707 the IDEA patent expired. 708 70920130426: 710 The sysctl which controls TRIM support under ZFS has been renamed 711 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 712 enabled by default. 713 71420130425: 715 The mergemaster command now uses the default MAKEOBJDIRPREFIX 716 rather than creating it's own in the temporary directory in 717 order allow access to bootstrapped versions of tools such as 718 install and mtree. When upgrading from version of FreeBSD where 719 the install command does not support -l, you will need to 720 install a new mergemaster command if mergemaster -p is required. 721 This can be accomplished with the command (cd src/usr.sbin/mergemaster 722 && make install). 723 72420130404: 725 Legacy ATA stack, disabled and replaced by new CAM-based one since 726 FreeBSD 9.0, completely removed from the sources. Kernel modules 727 atadisk and atapi*, user-level tools atacontrol and burncd are 728 removed. Kernel option `options ATA_CAM` is now permanently enabled 729 and removed. 730 73120130319: 732 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 733 and socketpair(2). Software, in particular Kerberos, may 734 automatically detect and use these during building. The resulting 735 binaries will not work on older kernels. 736 73720130308: 738 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 739 information, see the respective 20130304 entry). 740 74120130304: 742 Recent commits to callout(9) changed the size of struct callout, 743 so the KBI is probably heavily disturbed. Also, some functions 744 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 745 by macros. Every kernel module using it won't load, so rebuild 746 is requested. 747 748 The ctl device has been re-enabled in GENERIC for i386 and amd64, 749 but does not initialize by default (because of the new CTL_DISABLE 750 option) to save memory. To re-enable it, remove the CTL_DISABLE 751 option from the kernel config file or set kern.cam.ctl.disable=0 752 in /boot/loader.conf. 753 75420130301: 755 The ctl device has been disabled in GENERIC for i386 and amd64. 756 This was done due to the extra memory being allocated at system 757 initialisation time by the ctl driver which was only used if 758 a CAM target device was created. This makes a FreeBSD system 759 unusable on 128MB or less of RAM. 760 76120130208: 762 A new compression method (lz4) has been merged to -HEAD. Please 763 refer to zpool-features(7) for more information. 764 765 Please refer to the "ZFS notes" section of this file for information 766 on upgrading boot ZFS pools. 767 76820130129: 769 A BSD-licensed patch(1) variant has been added and is installed 770 as bsdpatch, being the GNU version the default patch. 771 To inverse the logic and use the BSD-licensed one as default, 772 while having the GNU version installed as gnupatch, rebuild 773 and install world with the WITH_BSD_PATCH knob set. 774 77520130121: 776 Due to the use of the new -l option to install(1) during build 777 and install, you must take care not to directly set the INSTALL 778 make variable in your /etc/make.conf, /etc/src.conf, or on the 779 command line. If you wish to use the -C flag for all installs 780 you may be able to add INSTALL+=-C to /etc/make.conf or 781 /etc/src.conf. 782 78320130118: 784 The install(1) option -M has changed meaning and now takes an 785 argument that is a file or path to append logs to. In the 786 unlikely event that -M was the last option on the command line 787 and the command line contained at least two files and a target 788 directory the first file will have logs appended to it. The -M 789 option served little practical purpose in the last decade so its 790 use is expected to be extremely rare. 791 79220121223: 793 After switching to Clang as the default compiler some users of ZFS 794 on i386 systems started to experience stack overflow kernel panics. 795 Please consider using 'options KSTACK_PAGES=4' in such configurations. 796 79720121222: 798 GEOM_LABEL now mangles label names read from file system metadata. 799 Mangling affect labels containing spaces, non-printable characters, 800 '%' or '"'. Device names in /etc/fstab and other places may need to 801 be updated. 802 80320121217: 804 By default, only the 10 most recent kernel dumps will be saved. To 805 restore the previous behaviour (no limit on the number of kernel dumps 806 stored in the dump directory) add the following line to /etc/rc.conf: 807 808 savecore_flags="" 809 81020121201: 811 With the addition of auditdistd(8), a new auditdistd user is now 812 required during installworld. "mergemaster -p" can be used to 813 add the user prior to installworld, as documented in the handbook. 814 81520121117: 816 The sin6_scope_id member variable in struct sockaddr_in6 is now 817 filled by the kernel before passing the structure to the userland via 818 sysctl or routing socket. This means the KAME-specific embedded scope 819 id in sin6_addr.s6_addr[2] is always cleared in userland application. 820 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 821 __FreeBSD_version is bumped to 1000025. 822 82320121105: 824 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 825 This means that the world and kernel will be compiled with clang 826 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 827 and /usr/bin/cpp. To disable this behavior and revert to building 828 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 829 of current may need to bootstrap WITHOUT_CLANG first if the clang 830 build fails (its compatibility window doesn't extend to the 9 stable 831 branch point). 832 83320121102: 834 The IPFIREWALL_FORWARD kernel option has been removed. Its 835 functionality now turned on by default. 836 83720121023: 838 The ZERO_COPY_SOCKET kernel option has been removed and 839 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 840 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 841 mechanism which is not safe and may result in kernel crashes. 842 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 843 driver supports disposeable external page sized mbuf storage. 844 Proper replacements for both zero-copy mechanisms are under 845 consideration and will eventually lead to complete removal 846 of the two kernel options. 847 84820121023: 849 The IPv4 network stack has been converted to network byte 850 order. The following modules need to be recompiled together 851 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 852 pf(4), ipfw(4), ng_ipfw(4), stf(4). 853 85420121022: 855 Support for non-MPSAFE filesystems was removed from VFS. The 856 VFS_VERSION was bumped, all filesystem modules shall be 857 recompiled. 858 85920121018: 860 All the non-MPSAFE filesystems have been disconnected from 861 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 862 portalfs, smbfs, xfs. 863 86420121016: 865 The interface cloning API and ABI has changed. The following 866 modules need to be recompiled together with kernel: 867 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 868 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 869 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 870 87120121015: 872 The sdhci driver was split in two parts: sdhci (generic SD Host 873 Controller logic) and sdhci_pci (actual hardware driver). 874 No kernel config modifications are required, but if you 875 load sdhc as a module you must switch to sdhci_pci instead. 876 87720121014: 878 Import the FUSE kernel and userland support into base system. 879 88020121013: 881 The GNU sort(1) program has been removed since the BSD-licensed 882 sort(1) has been the default for quite some time and no serious 883 problems have been reported. The corresponding WITH_GNU_SORT 884 knob has also gone. 885 88620121006: 887 The pfil(9) API/ABI for AF_INET family has been changed. Packet 888 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 889 with new kernel. 890 89120121001: 892 The net80211(4) ABI has been changed to allow for improved driver 893 PS-POLL and power-save support. All wireless drivers need to be 894 recompiled to work with the new kernel. 895 89620120913: 897 The random(4) support for the VIA hardware random number 898 generator (`PADLOCK') is no longer enabled unconditionally. 899 Add the padlock_rng device in the custom kernel config if 900 needed. The GENERIC kernels on i386 and amd64 do include the 901 device, so the change only affects the custom kernel 902 configurations. 903 90420120908: 905 The pf(4) packet filter ABI has been changed. pfctl(8) and 906 snmp_pf module need to be recompiled to work with new kernel. 907 90820120828: 909 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 910 to -HEAD. Pools that have empty_bpobj in active state can not be 911 imported read-write with ZFS implementations that do not support 912 this feature. For more information read the zpool-features(5) 913 manual page. 914 91520120727: 916 The sparc64 ZFS loader has been changed to no longer try to auto- 917 detect ZFS providers based on diskN aliases but now requires these 918 to be explicitly listed in the OFW boot-device environment variable. 919 92020120712: 921 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 922 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 923 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 924 92520120712: 926 The following sysctls and tunables have been renamed for consistency 927 with other variables: 928 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 929 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 930 93120120628: 932 The sort utility has been replaced with BSD sort. For now, GNU sort 933 is also available as "gnusort" or the default can be set back to 934 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 935 installed as "bsdsort". 936 93720120611: 938 A new version of ZFS (pool version 5000) has been merged to -HEAD. 939 Starting with this version the old system of ZFS pool versioning 940 is superseded by "feature flags". This concept enables forward 941 compatibility against certain future changes in functionality of ZFS 942 pools. The first read-only compatible "feature flag" for ZFS pools 943 is named "com.delphix:async_destroy". For more information 944 read the new zpool-features(5) manual page. 945 Please refer to the "ZFS notes" section of this file for information 946 on upgrading boot ZFS pools. 947 94820120417: 949 The malloc(3) implementation embedded in libc now uses sources imported 950 as contrib/jemalloc. The most disruptive API change is to 951 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 952 delete it prior to installworld, and optionally re-create it using the 953 new format after rebooting. See malloc.conf(5) for details 954 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 955 NAMESPACE section). 956 95720120328: 958 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 959 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 960 now spelled mips. This is to aid compatibility with third-party 961 software that expects this naming scheme in uname(3). Little-endian 962 settings are unchanged. If you are updating a big-endian mips64 machine 963 from before this change, you may need to set MACHINE_ARCH=mips64 in 964 your environment before the new build system will recognize your machine. 965 96620120306: 967 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 968 platforms. 969 97020120229: 971 Now unix domain sockets behave "as expected" on nullfs(5). Previously 972 nullfs(5) did not pass through all behaviours to the underlying layer, 973 as a result if we bound to a socket on the lower layer we could connect 974 only to the lower path; if we bound to the upper layer we could connect 975 only to the upper path. The new behavior is one can connect to both the 976 lower and the upper paths regardless what layer path one binds to. 977 97820120211: 979 The getifaddrs upgrade path broken with 20111215 has been restored. 980 If you have upgraded in between 20111215 and 20120209 you need to 981 recompile libc again with your kernel. You still need to recompile 982 world to be able to configure CARP but this restriction already 983 comes from 20111215. 984 98520120114: 986 The set_rcvar() function has been removed from /etc/rc.subr. All 987 base and ports rc.d scripts have been updated, so if you have a 988 port installed with a script in /usr/local/etc/rc.d you can either 989 hand-edit the rcvar= line, or reinstall the port. 990 991 An easy way to handle the mass-update of /etc/rc.d: 992 rm /etc/rc.d/* && mergemaster -i 993 99420120109: 995 panic(9) now stops other CPUs in the SMP systems, disables interrupts 996 on the current CPU and prevents other threads from running. 997 This behavior can be reverted using the kern.stop_scheduler_on_panic 998 tunable/sysctl. 999 The new behavior can be incompatible with kern.sync_on_panic. 1000 100120111215: 1002 The carp(4) facility has been changed significantly. Configuration 1003 of the CARP protocol via ifconfig(8) has changed, as well as format 1004 of CARP events submitted to devd(8) has changed. See manual pages 1005 for more information. The arpbalance feature of carp(4) is currently 1006 not supported anymore. 1007 1008 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1009 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1010 need to be recompiled. 1011 101220111122: 1013 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1014 /dev/wmistat0. 1015 101620111108: 1017 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1018 explicitely support non-MPSAFE filesystems. 1019 It is on by default for all supported platform at this present 1020 time. 1021 102220111101: 1023 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1024 i386 and pc98 GENERIC kernel configuration files. 1025 102620110930: 1027 sysinstall has been removed 1028 102920110923: 1030 The stable/9 branch created in subversion. This corresponds to the 1031 RELENG_9 branch in CVS. 1032 1033COMMON ITEMS: 1034 1035 General Notes 1036 ------------- 1037 Avoid using make -j when upgrading. While generally safe, there are 1038 sometimes problems using -j to upgrade. If your upgrade fails with 1039 -j, please try again without -j. From time to time in the past there 1040 have been problems using -j with buildworld and/or installworld. This 1041 is especially true when upgrading between "distant" versions (eg one 1042 that cross a major release boundary or several minor releases, or when 1043 several months have passed on the -current branch). 1044 1045 Sometimes, obscure build problems are the result of environment 1046 poisoning. This can happen because the make utility reads its 1047 environment when searching for values for global variables. To run 1048 your build attempts in an "environmental clean room", prefix all make 1049 commands with 'env -i '. See the env(1) manual page for more details. 1050 1051 When upgrading from one major version to another it is generally best 1052 to upgrade to the latest code in the currently installed branch first, 1053 then do an upgrade to the new branch. This is the best-tested upgrade 1054 path, and has the highest probability of being successful. Please try 1055 this approach before reporting problems with a major version upgrade. 1056 1057 When upgrading a live system, having a root shell around before 1058 installing anything can help undo problems. Not having a root shell 1059 around can lead to problems if pam has changed too much from your 1060 starting point to allow continued authentication after the upgrade. 1061 1062 ZFS notes 1063 --------- 1064 When upgrading the boot ZFS pool to a new version, always follow 1065 these two steps: 1066 1067 1.) recompile and reinstall the ZFS boot loader and boot block 1068 (this is part of "make buildworld" and "make installworld") 1069 1070 2.) update the ZFS boot block on your boot drive 1071 1072 The following example updates the ZFS boot block on the first 1073 partition (freebsd-boot) of a GPT partitioned drive ada0: 1074 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1075 1076 Non-boot pools do not need these updates. 1077 1078 To build a kernel 1079 ----------------- 1080 If you are updating from a prior version of FreeBSD (even one just 1081 a few days old), you should follow this procedure. It is the most 1082 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1083 1084 make kernel-toolchain 1085 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1086 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1087 1088 To test a kernel once 1089 --------------------- 1090 If you just want to boot a kernel once (because you are not sure 1091 if it works, or if you want to boot a known bad kernel to provide 1092 debugging information) run 1093 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1094 nextboot -k testkernel 1095 1096 To just build a kernel when you know that it won't mess you up 1097 -------------------------------------------------------------- 1098 This assumes you are already running a CURRENT system. Replace 1099 ${arch} with the architecture of your machine (e.g. "i386", 1100 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1101 1102 cd src/sys/${arch}/conf 1103 config KERNEL_NAME_HERE 1104 cd ../compile/KERNEL_NAME_HERE 1105 make depend 1106 make 1107 make install 1108 1109 If this fails, go to the "To build a kernel" section. 1110 1111 To rebuild everything and install it on the current system. 1112 ----------------------------------------------------------- 1113 # Note: sometimes if you are running current you gotta do more than 1114 # is listed here if you are upgrading from a really old current. 1115 1116 <make sure you have good level 0 dumps> 1117 make buildworld 1118 make kernel KERNCONF=YOUR_KERNEL_HERE 1119 [1] 1120 <reboot in single user> [3] 1121 mergemaster -Fp [5] 1122 make installworld 1123 mergemaster -Fi [4] 1124 make delete-old [6] 1125 <reboot> 1126 1127 To cross-install current onto a separate partition 1128 -------------------------------------------------- 1129 # In this approach we use a separate partition to hold 1130 # current's root, 'usr', and 'var' directories. A partition 1131 # holding "/", "/usr" and "/var" should be about 2GB in 1132 # size. 1133 1134 <make sure you have good level 0 dumps> 1135 <boot into -stable> 1136 make buildworld 1137 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1138 <maybe newfs current's root partition> 1139 <mount current's root partition on directory ${CURRENT_ROOT}> 1140 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1141 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1142 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1143 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1144 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1145 <reboot into current> 1146 <do a "native" rebuild/install as described in the previous section> 1147 <maybe install compatibility libraries from ports/misc/compat*> 1148 <reboot> 1149 1150 1151 To upgrade in-place from stable to current 1152 ---------------------------------------------- 1153 <make sure you have good level 0 dumps> 1154 make buildworld [9] 1155 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1156 [1] 1157 <reboot in single user> [3] 1158 mergemaster -Fp [5] 1159 make installworld 1160 mergemaster -Fi [4] 1161 make delete-old [6] 1162 <reboot> 1163 1164 Make sure that you've read the UPDATING file to understand the 1165 tweaks to various things you need. At this point in the life 1166 cycle of current, things change often and you are on your own 1167 to cope. The defaults can also change, so please read ALL of 1168 the UPDATING entries. 1169 1170 Also, if you are tracking -current, you must be subscribed to 1171 freebsd-current@freebsd.org. Make sure that before you update 1172 your sources that you have read and understood all the recent 1173 messages there. If in doubt, please track -stable which has 1174 much fewer pitfalls. 1175 1176 [1] If you have third party modules, such as vmware, you 1177 should disable them at this point so they don't crash your 1178 system on reboot. 1179 1180 [3] From the bootblocks, boot -s, and then do 1181 fsck -p 1182 mount -u / 1183 mount -a 1184 cd src 1185 adjkerntz -i # if CMOS is wall time 1186 Also, when doing a major release upgrade, it is required that 1187 you boot into single user mode to do the installworld. 1188 1189 [4] Note: This step is non-optional. Failure to do this step 1190 can result in a significant reduction in the functionality of the 1191 system. Attempting to do it by hand is not recommended and those 1192 that pursue this avenue should read this file carefully, as well 1193 as the archives of freebsd-current and freebsd-hackers mailing lists 1194 for potential gotchas. The -U option is also useful to consider. 1195 See mergemaster(8) for more information. 1196 1197 [5] Usually this step is a noop. However, from time to time 1198 you may need to do this if you get unknown user in the following 1199 step. It never hurts to do it all the time. You may need to 1200 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1201 install) after the buildworld before this step if you last updated 1202 from current before 20130425 or from -stable before 20130430. 1203 1204 [6] This only deletes old files and directories. Old libraries 1205 can be deleted by "make delete-old-libs", but you have to make 1206 sure that no program is using those libraries anymore. 1207 1208 [8] In order to have a kernel that can run the 4.x binaries needed to 1209 do an installworld, you must include the COMPAT_FREEBSD4 option in 1210 your kernel. Failure to do so may leave you with a system that is 1211 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1212 required to run the 5.x binaries on more recent kernels. And so on 1213 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1214 1215 Make sure that you merge any new devices from GENERIC since the 1216 last time you updated your kernel config file. 1217 1218 [9] When checking out sources, you must include the -P flag to have 1219 cvs prune empty directories. 1220 1221 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1222 "?=" instead of the "=" assignment operator, so that buildworld can 1223 override the CPUTYPE if it needs to. 1224 1225 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1226 not on the command line, or in /etc/make.conf. buildworld will 1227 warn if it is improperly defined. 1228FORMAT: 1229 1230This file contains a list, in reverse chronological order, of major 1231breakages in tracking -current. It is not guaranteed to be a complete 1232list of such breakages, and only contains entries since October 10, 2007. 1233If you need to see UPDATING entries from before that date, you will need 1234to fetch an UPDATING file from an older FreeBSD release. 1235 1236Copyright information: 1237 1238Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1239 1240Redistribution, publication, translation and use, with or without 1241modification, in full or in part, in any form or format of this 1242document are permitted without further permission from the author. 1243 1244THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1245IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1246WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1247DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1248INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1249(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1250SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1251HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1252STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1253IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1254POSSIBILITY OF SUCH DAMAGE. 1255 1256Contact Warner Losh if you have any questions about your use of 1257this document. 1258 1259$FreeBSD: head/UPDATING 284464 2015-06-16 20:58:33Z imp $ 1260