UPDATING revision 306210
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 17from older version of current across the gcc/clang cutover is a bit fragile. 18 1920160928: 20 11.0-RELEASE. 21 2220160622: 23 The libc stub for the pipe(2) system call has been replaced with 24 a wrapper that calls the pipe2(2) system call and the pipe(2) 25 system call is now only implemented by the kernels that include 26 "options COMPAT_FREEBSD10" in their config file (this is the 27 default). Users should ensure that this option is enabled in 28 their kernel or upgrade userspace to r302092 before upgrading their 29 kernel. 30 3120160527: 32 CAM will now strip leading spaces from SCSI disks' serial numbers. 33 This will effect users who create UFS filesystems on SCSI disks using 34 those disk's diskid device nodes. For example, if /etc/fstab 35 previously contained a line like 36 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 37 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 38 transforms like gmirror may also be affected. ZFS users should 39 generally be fine. 40 4120160523: 42 The bitstring(3) API has been updated with new functionality and 43 improved performance. But it is binary-incompatible with the old API. 44 Objects built with the new headers may not be linked against objects 45 built with the old headers. 46 4720160520: 48 The brk and sbrk functions have been removed from libc on arm64. 49 Binutils from ports has been updated to not link to these 50 functions and should be updated to the latest version before 51 installing a new libc. 52 5320160517: 54 The armv6 port now defaults to hard float ABI. Limited support 55 for running both hardfloat and soft float on the same system 56 is available using the libraries installed with -DWITH_LIBSOFT. 57 This has only been tested as an upgrade path for installworld 58 and packages may fail or need manual intervention to run. New 59 packages will be needed. 60 61 To update an existing self-hosted armv6hf system, you must add 62 TARGET_ARCH=armv6 on the make command line for both the build 63 and the install steps. 64 6520160510: 66 Kernel modules compiled outside of a kernel build now default to 67 installing to /boot/modules instead of /boot/kernel. Many kernel 68 modules built this way (such as those in ports) already overrode 69 KMODDIR explicitly to install into /boot/modules. However, 70 manually building and installing a module from /sys/modules will 71 now install to /boot/modules instead of /boot/kernel. 72 7320160414: 74 The CAM I/O scheduler has been committed to the kernel. There should be 75 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 76 list of known rogues that claim support for this but actually corrupt 77 data is believed to be complete, be on the lookout for data 78 corruption. The known rogue list is believed to be complete: 79 80 o Crucial MX100, M550 drives with MU01 firmware. 81 o Micron M510 and M550 drives with MU01 firmware. 82 o Micron M500 prior to MU07 firmware 83 o Samsung 830, 840, and 850 all firmwares 84 o FCCT M500 all firmwares 85 86 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 87 with working NCQ TRIM. For Micron branded drives, see your sales rep for 88 updated firmware. Black listed drives will work correctly because these 89 drives work correctly so long as no NCQ TRIMs are sent to them. Given 90 this list is the same as found in Linux, it's believed there are no 91 other rogues in the market place. All other models from the above 92 vendors work. 93 94 To be safe, if you are at all concerned, you can quirk each of your 95 drives to prevent NCQ from being sent by setting: 96 kern.cam.ada.X.quirks="0x2" 97 in loader.conf. If the drive requires the 4k sector quirk, set the 98 quirks entry to 0x3. 99 10020160330: 101 The FAST_DEPEND build option has been removed and its functionality is 102 now the one true way. The old mkdep(1) style of 'make depend' has 103 been removed. See 20160311 for further details. 104 10520160317: 106 Resource range types have grown from unsigned long to uintmax_t. All 107 drivers, and anything using libdevinfo, need to be recompiled. 108 10920160311: 110 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 111 builds. It no longer runs mkdep(1) during 'make depend', and the 112 'make depend' stage can safely be skipped now as it is auto ran 113 when building 'make all' and will generate all SRCS and DPSRCS before 114 building anything else. Dependencies are gathered at compile time with 115 -MF flags kept in separate .depend files per object file. Users should 116 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 117 stale .depend files. 118 11920160306: 120 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 121 kernel modules. Therefore, if you load any kernel modules at boot time, 122 please install the boot loaders after you install the kernel, but before 123 rebooting, e.g.: 124 125 make buildworld 126 make kernel KERNCONF=YOUR_KERNEL_HERE 127 make -C sys/boot install 128 <reboot in single user> 129 130 Then follow the usual steps, described in the General Notes section, 131 below. 132 13320160305: 134 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 135 see the 20141231 entry below for information about prerequisites and 136 upgrading, if you are not already using clang 3.5.0 or higher. 137 13820160301: 139 The AIO subsystem is now a standard part of the kernel. The 140 VFS_AIO kernel option and aio.ko kernel module have been removed. 141 Due to stability concerns, asynchronous I/O requests are only 142 permitted on sockets and raw disks by default. To enable 143 asynchronous I/O requests on all file types, set the 144 vfs.aio.enable_unsafe sysctl to a non-zero value. 145 14620160226: 147 The ELF object manipulation tool objcopy is now provided by the 148 ELF Tool Chain project rather than by GNU binutils. It should be a 149 drop-in replacement, with the addition of arm64 support. The 150 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 151 to obtain the GNU version if necessary. 152 15320160129: 154 Building ZFS pools on top of zvols is prohibited by default. That 155 feature has never worked safely; it's always been prone to deadlocks. 156 Using a zvol as the backing store for a VM guest's virtual disk will 157 still work, even if the guest is using ZFS. Legacy behavior can be 158 restored by setting vfs.zfs.vol.recursive=1. 159 16020160119: 161 The NONE and HPN patches has been removed from OpenSSH. They are 162 still available in the security/openssh-portable port. 163 16420160113: 165 With the addition of ypldap(8), a new _ypldap user is now required 166 during installworld. "mergemaster -p" can be used to add the user 167 prior to installworld, as documented in the handbook. 168 16920151216: 170 The tftp loader (pxeboot) now uses the option root-path directive. As a 171 consequence it no longer looks for a pxeboot.4th file on the tftp 172 server. Instead it uses the regular /boot infrastructure as with the 173 other loaders. 174 17520151211: 176 The code to start recording plug and play data into the modules has 177 been committed. While the old tools will properly build a new kernel, 178 a number of warnings about "unknown metadata record 4" will be produced 179 for an older kldxref. To avoid such warnings, make sure to rebuild 180 the kernel toolchain (or world). Make sure that you have r292078 or 181 later when trying to build 292077 or later before rebuilding. 182 18320151207: 184 Debug data files are now built by default with 'make buildworld' and 185 installed with 'make installworld'. This facilitates debugging but 186 requires more disk space both during the build and for the installed 187 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 188 in src.conf(5). 189 19020151130: 191 r291527 changed the internal interface between the nfsd.ko and 192 nfscommon.ko modules. As such, they must both be upgraded to-gether. 193 __FreeBSD_version has been bumped because of this. 194 19520151108: 196 Add support for unicode collation strings leads to a change of 197 order of files listed by ls(1) for example. To get back to the old 198 behaviour, set LC_COLLATE environment variable to "C". 199 200 Databases administrators will need to reindex their databases given 201 collation results will be different. 202 203 Due to a bug in install(1) it is recommended to remove the ancient 204 locales before running make installworld. 205 206 rm -rf /usr/share/locale/* 207 20820151030: 209 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 210 libcrypto.so.7 or libssl.so.7 must be recompiled. 211 21220151020: 213 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 214 Kernel modules isp_2400_multi and isp_2500_multi were removed and 215 should be replaced with isp_2400 and isp_2500 modules respectively. 216 21720151017: 218 The build previously allowed using 'make -n' to not recurse into 219 sub-directories while showing what commands would be executed, and 220 'make -n -n' to recursively show commands. Now 'make -n' will recurse 221 and 'make -N' will not. 222 22320151012: 224 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 225 and etcupdate will now use this file. A custom sendmail.cf is now 226 updated via this mechanism rather than via installworld. If you had 227 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 228 want to remove the exclusion or change it to "always install". 229 /etc/mail/sendmail.cf is now managed the same way regardless of 230 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 231 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 232 23320151011: 234 Compatibility shims for legacy ATA device names have been removed. 235 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 236 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 237 environment variables, /dev/ad* and /dev/ar* symbolic links. 238 23920151006: 240 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 241 Please see the 20141231 entry below for information about prerequisites 242 and upgrading, if you are not already using clang 3.5.0 or higher. 243 24420150924: 245 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 246 and renamed from .symbols to .debug. This reduces the size requirements 247 on the boot partition or file system and provides consistency with 248 userland debug files. 249 250 When using the supported kernel installation method the 251 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 252 as is done with /boot/kernel. 253 254 Developers wishing to maintain the historical behavior of installing 255 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 256 25720150827: 258 The wireless drivers had undergone changes that remove the 'parent 259 interface' from the ifconfig -l output. The rc.d network scripts 260 used to check presence of a parent interface in the list, so old 261 scripts would fail to start wireless networking. Thus, etcupdate(3) 262 or mergemaster(8) run is required after kernel update, to update your 263 rc.d scripts in /etc. 264 26520150827: 266 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 267 These configurations are now automatically interpreted as 268 'scrub fragment reassemble'. 269 27020150817: 271 Kernel-loadable modules for the random(4) device are back. To use 272 them, the kernel must have 273 274 device random 275 options RANDOM_LOADABLE 276 277 kldload(8) can then be used to load random_fortuna.ko 278 or random_yarrow.ko. Please note that due to the indirect 279 function calls that the loadable modules need to provide, 280 the build-in variants will be slightly more efficient. 281 282 The random(4) kernel option RANDOM_DUMMY has been retired due to 283 unpopularity. It was not all that useful anyway. 284 28520150813: 286 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 287 Control over building the ELF Tool Chain tools is now provided by 288 the WITHOUT_TOOLCHAIN knob. 289 29020150810: 291 The polarity of Pulse Per Second (PPS) capture events with the 292 uart(4) driver has been corrected. Prior to this change the PPS 293 "assert" event corresponded to the trailing edge of a positive PPS 294 pulse and the "clear" event was the leading edge of the next pulse. 295 296 As the width of a PPS pulse in a typical GPS receiver is on the 297 order of 1 millisecond, most users will not notice any significant 298 difference with this change. 299 300 Anyone who has compensated for the historical polarity reversal by 301 configuring a negative offset equal to the pulse width will need to 302 remove that workaround. 303 30420150809: 305 The default group assigned to /dev/dri entries has been changed 306 from 'wheel' to 'video' with the id of '44'. If you want to have 307 access to the dri devices please add yourself to the video group 308 with: 309 310 # pw groupmod video -m $USER 311 31220150806: 313 The menu.rc and loader.rc files will now be replaced during 314 upgrades. Please migrate local changes to menu.rc.local and 315 loader.rc.local instead. 316 31720150805: 318 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 319 strings and strip have been removed. The src.conf(5) knob 320 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 321 32220150728: 323 As ZFS requires more kernel stack pages than is the default on some 324 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 325 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 326 327 Please consider using 'options KSTACK_PAGES=X' where X is greater 328 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 329 33020150706: 331 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 332 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 333 default, i.e., they will not contain "::". For example, instead 334 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 335 to have a more specific match, such as different map entries for 336 IPv6:0:0 vs IPv6:0. This change requires that configuration 337 data (including maps, files, classes, custom ruleset, etc.) must 338 use the same format, so make certain such configuration data is 339 upgrading. As a very simple check search for patterns like 340 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 341 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 342 the cf option UseCompressedIPv6Addresses. 343 34420150630: 345 The default kernel entropy-processing algorithm is now 346 Fortuna, replacing Yarrow. 347 348 Assuming you have 'device random' in your kernel config 349 file, the configurations allow a kernel option to override 350 this default. You may choose *ONE* of: 351 352 options RANDOM_YARROW # Legacy /dev/random algorithm. 353 options RANDOM_DUMMY # Blocking-only driver. 354 355 If you have neither, you get Fortuna. For most people, 356 read no further, Fortuna will give a /dev/random that works 357 like it always used to, and the difference will be irrelevant. 358 359 If you remove 'device random', you get *NO* kernel-processed 360 entropy at all. This may be acceptable to folks building 361 embedded systems, but has complications. Carry on reading, 362 and it is assumed you know what you need. 363 364 *PLEASE* read random(4) and random(9) if you are in the 365 habit of tweaking kernel configs, and/or if you are a member 366 of the embedded community, wanting specific and not-usual 367 behaviour from your security subsystems. 368 369 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 370 random', you will NOT have a functioning /dev/random, and 371 many cryptographic features will not work, including SSH. 372 You may also find strange behaviour from the random(3) set 373 of library functions, in particular sranddev(3), srandomdev(3) 374 and arc4random(3). The reason for this is that the KERN_ARND 375 sysctl only returns entropy if it thinks it has some to 376 share, and with RANDOM_DUMMY or no 'device random' this 377 will never happen. 378 37920150623: 380 An additional fix for the issue described in the 20150614 sendmail 381 entry below has been been committed in revision 284717. 382 38320150616: 384 FreeBSD's old make (fmake) has been removed from the system. It is 385 available as the devel/fmake port or via pkg install fmake. 386 38720150615: 388 The fix for the issue described in the 20150614 sendmail entry 389 below has been been committed in revision 284436. The work 390 around described in that entry is no longer needed unless the 391 default setting is overridden by a confDH_PARAMETERS configuration 392 setting of '5' or pointing to a 512 bit DH parameter file. 393 39420150614: 395 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 396 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 397 and devel/kyua to version 0.20+ and adjust any calling code to work 398 with Kyuafile and kyua. 399 40020150614: 401 The import of openssl to address the FreeBSD-SA-15:10.openssl 402 security advisory includes a change which rejects handshakes 403 with DH parameters below 768 bits. sendmail releases prior 404 to 8.15.2 (not yet released), defaulted to a 512 bit 405 DH parameter setting for client connections. To work around 406 this interoperability, sendmail can be configured to use a 407 2048 bit DH parameter by: 408 409 1. Edit /etc/mail/`hostname`.mc 410 2. If a setting for confDH_PARAMETERS does not exist or 411 exists and is set to a string beginning with '5', 412 replace it with '2'. 413 3. If a setting for confDH_PARAMETERS exists and is set to 414 a file path, create a new file with: 415 openssl dhparam -out /path/to/file 2048 416 4. Rebuild the .cf file: 417 cd /etc/mail/; make; make install 418 5. Restart sendmail: 419 cd /etc/mail/; make restart 420 421 A sendmail patch is coming, at which time this file will be 422 updated. 423 42420150604: 425 Generation of legacy formatted entries have been disabled by default 426 in pwd_mkdb(8), as all base system consumers of the legacy formatted 427 entries were converted to use the new format by default when the new, 428 machine independent format have been added and supported since FreeBSD 429 5.x. 430 431 Please see the pwd_mkdb(8) manual page for further details. 432 43320150525: 434 Clang and llvm have been upgraded to 3.6.1 release. Please see the 435 20141231 entry below for information about prerequisites and upgrading, 436 if you are not already using 3.5.0 or higher. 437 43820150521: 439 TI platform code switched to using vendor DTS files and this update 440 may break existing systems running on Beaglebone, Beaglebone Black, 441 and Pandaboard: 442 443 - dtb files should be regenerated/reinstalled. Filenames are the 444 same but content is different now 445 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 446 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 447 addressing scheme is now pin 25 on /dev/gpioc3. 448 - Pandaboard: /etc/ttys should be updated, serial console device is 449 now /dev/ttyu2, not /dev/ttyu0 450 45120150501: 452 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 453 If you need the GNU extension from groff soelim(1), install groff 454 from package: pkg install groff, or via ports: textproc/groff. 455 45620150423: 457 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 458 defined in symlink(7); previously symlinks were silently ignored. 459 46020150415: 461 The const qualifier has been removed from iconv(3) to comply with 462 POSIX. The ports tree is aware of this from r384038 onwards. 463 46420150416: 465 Libraries specified by LIBADD in Makefiles must have a corresponding 466 DPADD_<lib> variable to ensure correct dependencies. This is now 467 enforced in src.libnames.mk. 468 46920150324: 470 From legacy ata(4) driver was removed support for SATA controllers 471 supported by more functional drivers ahci(4), siis(4) and mvs(4). 472 Kernel modules ataahci and ataadaptec were removed completely, 473 replaced by ahci and mvs modules respectively. 474 47520150315: 476 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 477 the 20141231 entry below for information about prerequisites and 478 upgrading, if you are not already using 3.5.0 or higher. 479 48020150307: 481 The 32-bit PowerPC kernel has been changed to a position-independent 482 executable. This can only be booted with a version of loader(8) 483 newer than January 31, 2015, so make sure to update both world and 484 kernel before rebooting. 485 48620150217: 487 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 488 but before r278950, the RNG was not seeded properly. Immediately 489 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 490 ssh keys or openssl keys) that were generated w/ a kernel from that 491 range. This does not affect programs that directly used /dev/random 492 or /dev/urandom. All userland uses of arc4random(3) are affected. 493 49420150210: 495 The autofs(4) ABI was changed in order to restore binary compatibility 496 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 497 with the new kernel. 498 49920150131: 500 The powerpc64 kernel has been changed to a position-independent 501 executable. This can only be booted with a new version of loader(8), 502 so make sure to update both world and kernel before rebooting. 503 50420150118: 505 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 506 only release, no new features have been added. Please see the 20141231 507 entry below for information about prerequisites and upgrading, if you 508 are not already using 3.5.0. 509 51020150107: 511 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 512 taken from the ELF Tool Chain project rather than GNU binutils. They 513 should be drop-in replacements, with the addition of arm64 support. 514 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 515 binutils tools, if necessary. See 20150805 for updated information. 516 51720150105: 518 The default Unbound configuration now enables remote control 519 using a local socket. Users who have already enabled the 520 local_unbound service should regenerate their configuration 521 by running "service local_unbound setup" as root. 522 52320150102: 524 The GNU texinfo and GNU info pages have been removed. 525 To be able to view GNU info pages please install texinfo from ports. 526 52720141231: 528 Clang, llvm and lldb have been upgraded to 3.5.0 release. 529 530 As of this release, a prerequisite for building clang, llvm and lldb is 531 a C++11 capable compiler and C++11 standard library. This means that to 532 be able to successfully build the cross-tools stage of buildworld, with 533 clang as the bootstrap compiler, your system compiler or cross compiler 534 should either be clang 3.3 or later, or gcc 4.8 or later, and your 535 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 536 later. 537 538 On any standard FreeBSD 10.x or 11.x installation, where clang and 539 libc++ are on by default (that is, on x86 or arm), this should work out 540 of the box. 541 542 On 9.x installations where clang is enabled by default, e.g. on x86 and 543 powerpc, libc++ will not be enabled by default, so libc++ should be 544 built (with clang) and installed first. If both clang and libc++ are 545 missing, build clang first, then use it to build libc++. 546 547 On 8.x and earlier installations, upgrade to 9.x first, and then follow 548 the instructions for 9.x above. 549 550 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 551 default, and do not build clang. 552 553 Many embedded systems are resource constrained, and will not be able to 554 build clang in a reasonable time, or in some cases at all. In those 555 cases, cross building bootable systems on amd64 is a workaround. 556 557 This new version of clang introduces a number of new warnings, of which 558 the following are most likely to appear: 559 560 -Wabsolute-value 561 562 This warns in two cases, for both C and C++: 563 * When the code is trying to take the absolute value of an unsigned 564 quantity, which is effectively a no-op, and almost never what was 565 intended. The code should be fixed, if at all possible. If you are 566 sure that the unsigned quantity can be safely cast to signed, without 567 loss of information or undefined behavior, you can add an explicit 568 cast, or disable the warning. 569 570 * When the code is trying to take an absolute value, but the called 571 abs() variant is for the wrong type, which can lead to truncation. 572 If you want to disable the warning instead of fixing the code, please 573 make sure that truncation will not occur, or it might lead to unwanted 574 side-effects. 575 576 -Wtautological-undefined-compare and 577 -Wundefined-bool-conversion 578 579 These warn when C++ code is trying to compare 'this' against NULL, while 580 'this' should never be NULL in well-defined C++ code. However, there is 581 some legacy (pre C++11) code out there, which actively abuses this 582 feature, which was less strictly defined in previous C++ versions. 583 584 Squid and openjdk do this, for example. The warning can be turned off 585 for C++98 and earlier, but compiling the code in C++11 mode might result 586 in unexpected behavior; for example, the parts of the program that are 587 unreachable could be optimized away. 588 58920141222: 590 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 591 kernel sources have been removed. The .h files remain, since some 592 utilities include them. This will need to be fixed later. 593 If "mount -t oldnfs ..." is attempted, it will fail. 594 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 595 the utilities will report errors. 596 59720141121: 598 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 599 directories to top level SUBDIR variable when their parent 600 directory is included in LOCAL_DIRS. Users with build systems with 601 such hierarchies and without SUBDIR entries in the parent 602 directory Makefiles should add them or add the directories to 603 LOCAL_DIRS. 604 60520141109: 606 faith(4) and faithd(8) have been removed from the base system. Faith 607 has been obsolete for a very long time. 608 60920141104: 610 vt(4), the new console driver, is enabled by default. It brings 611 support for Unicode and double-width characters, as well as 612 support for UEFI and integration with the KMS kernel video 613 drivers. 614 615 You may need to update your console settings in /etc/rc.conf, 616 most probably the keymap. During boot, /etc/rc.d/syscons will 617 indicate what you need to do. 618 619 vt(4) still has issues and lacks some features compared to 620 syscons(4). See the wiki for up-to-date information: 621 https://wiki.freebsd.org/Newcons 622 623 If you want to keep using syscons(4), you can do so by adding 624 the following line to /boot/loader.conf: 625 kern.vty=sc 626 62720141102: 628 pjdfstest has been integrated into kyua as an opt-in test suite. 629 Please see share/doc/pjdfstest/README for more details on how to 630 execute it. 631 63220141009: 633 gperf has been removed from the base system for architectures 634 that use clang. Ports that require gperf will obtain it from the 635 devel/gperf port. 636 63720140923: 638 pjdfstest has been moved from tools/regression/pjdfstest to 639 contrib/pjdfstest . 640 64120140922: 642 At svn r271982, The default linux compat kernel ABI has been adjusted 643 to 2.6.18 in support of the linux-c6 compat ports infrastructure 644 update. If you wish to continue using the linux-f10 compat ports, 645 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 646 encouraged to update their linux-compat packages to linux-c6 during 647 their next update cycle. 648 64920140729: 650 The ofwfb driver, used to provide a graphics console on PowerPC when 651 using vt(4), no longer allows mmap() of all physical memory. This 652 will prevent Xorg on PowerPC with some ATI graphics cards from 653 initializing properly unless x11-servers/xorg-server is updated to 654 1.12.4_8 or newer. 655 65620140723: 657 The xdev targets have been converted to using TARGET and 658 TARGET_ARCH instead of XDEV and XDEV_ARCH. 659 66020140719: 661 The default unbound configuration has been modified to address 662 issues with reverse lookups on networks that use private 663 address ranges. If you use the local_unbound service, run 664 "service local_unbound setup" as root to regenerate your 665 configuration, then "service local_unbound reload" to load the 666 new configuration. 667 66820140709: 669 The GNU texinfo and GNU info pages are not built and installed 670 anymore, WITH_INFO knob has been added to allow to built and install 671 them again. 672 UPDATE: see 20150102 entry on texinfo's removal 673 67420140708: 675 The GNU readline library is now an INTERNALLIB - that is, it is 676 statically linked into consumers (GDB and variants) in the base 677 system, and the shared library is no longer installed. The 678 devel/readline port is available for third party software that 679 requires readline. 680 68120140702: 682 The Itanium architecture (ia64) has been removed from the list of 683 known architectures. This is the first step in the removal of the 684 architecture. 685 68620140701: 687 Commit r268115 has added NFSv4.1 server support, merged from 688 projects/nfsv4.1-server. Since this includes changes to the 689 internal interfaces between the NFS related modules, a full 690 build of the kernel and modules will be necessary. 691 __FreeBSD_version has been bumped. 692 69320140629: 694 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 695 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 696 which differs from the behaviour controlled by this knob.) 697 69820140619: 699 Maximal length of the serial number in CTL was increased from 16 to 700 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 701 and ctld, need to be rebuilt to work with a new kernel. 702 70320140606: 704 The libatf-c and libatf-c++ major versions were downgraded to 0 and 705 1 respectively to match the upstream numbers. They were out of 706 sync because, when they were originally added to FreeBSD, the 707 upstream versions were not respected. These libraries are private 708 and not yet built by default, so renumbering them should be a 709 non-issue. However, unclean source trees will yield broken test 710 programs once the operator executes "make delete-old-libs" after a 711 "make installworld". 712 713 Additionally, the atf-sh binary was made private by moving it into 714 /usr/libexec/. Already-built shell test programs will keep the 715 path to the old binary so they will break after "make delete-old" 716 is run. 717 718 If you are using WITH_TESTS=yes (not the default), wipe the object 719 tree and rebuild from scratch to prevent spurious test failures. 720 This is only needed once: the misnumbered libraries and misplaced 721 binaries have been added to OptionalObsoleteFiles.inc so they will 722 be removed during a clean upgrade. 723 72420140512: 725 Clang and llvm have been upgraded to 3.4.1 release. 726 72720140508: 728 We bogusly installed src.opts.mk in /usr/share/mk. This file should 729 be removed to avoid issues in the future (and has been added to 730 ObsoleteFiles.inc). 731 73220140505: 733 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 734 past, it affected all builds that used the bsd.*.mk files. The old 735 behavior was a bug, but people may have relied upon it. To get this 736 behavior back, you can .include /etc/src.conf from /etc/make.conf 737 (which is still global and isn't changed). This also changes the 738 behavior of incremental builds inside the tree of individual 739 directories. Set MAKESYSPATH to ".../share/mk" to do that. 740 Although this has survived make universe and some upgrade scenarios, 741 other upgrade scenarios may have broken. At least one form of 742 temporary breakage was fixed with MAKESYSPATH settings for buildworld 743 as well... In cases where MAKESYSPATH isn't working with this 744 setting, you'll need to set it to the full path to your tree. 745 746 One side effect of all this cleaning up is that bsd.compiler.mk 747 is no longer implicitly included by bsd.own.mk. If you wish to 748 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 749 as well. 750 75120140430: 752 The lindev device has been removed since /dev/full has been made a 753 standard device. __FreeBSD_version has been bumped. 754 75520140424: 756 The knob WITHOUT_VI was added to the base system, which controls 757 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 758 in order to reorder files share/termcap and didn't build ex(1) as a 759 build tool, so building/installing with WITH_VI is highly advised for 760 build hosts for older releases. 761 762 This issue has been fixed in stable/9 and stable/10 in r277022 and 763 r276991, respectively. 764 76520140418: 766 The YES_HESIOD knob has been removed. It has been obsolete for 767 a decade. Please move to using WITH_HESIOD instead or your builds 768 will silently lack HESIOD. 769 77020140405: 771 The uart(4) driver has been changed with respect to its handling 772 of the low-level console. Previously the uart(4) driver prevented 773 any process from changing the baudrate or the CLOCAL and HUPCL 774 control flags. By removing the restrictions, operators can make 775 changes to the serial console port without having to reboot. 776 However, when getty(8) is started on the serial device that is 777 associated with the low-level console, a misconfigured terminal 778 line in /etc/ttys will now have a real impact. 779 Before upgrading the kernel, make sure that /etc/ttys has the 780 serial console device configured as 3wire without baudrate to 781 preserve the previous behaviour. E.g: 782 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 783 78420140306: 785 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 786 to improve performance. To re-enable it, if needed, run rpcbind 787 with command line option -W. 788 78920140226: 790 Switched back to the GPL dtc compiler due to updates in the upstream 791 dts files not being supported by the BSDL dtc compiler. You will need 792 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 793 may result while building dtb files during a kernel build if you fail 794 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 795 79620140216: 797 Clang and llvm have been upgraded to 3.4 release. 798 79920140216: 800 The nve(4) driver has been removed. Please use the nfe(4) driver 801 for NVIDIA nForce MCP Ethernet adapters instead. 802 80320140212: 804 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 805 This could cause certain C++ applications using shared libraries built 806 against the previous version of libc++ to crash. The incompatibility 807 has now been fixed, but any C++ applications or shared libraries built 808 between r261283 and r261801 should be recompiled. 809 81020140204: 811 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 812 capability mode support. Please note that enabling the feature in 813 kernel is still highly recommended. 814 81520140131: 816 OpenSSH is now built with sandbox support, and will use sandbox as 817 the default privilege separation method. This requires Capsicum 818 capability mode support in kernel. 819 82020140128: 821 The libelf and libdwarf libraries have been updated to newer 822 versions from upstream. Shared library version numbers for 823 these two libraries were bumped. Any ports or binaries 824 requiring these two libraries should be recompiled. 825 __FreeBSD_version is bumped to 1100006. 826 82720140110: 828 If a Makefile in a tests/ directory was auto-generating a Kyuafile 829 instead of providing an explicit one, this would prevent such 830 Makefile from providing its own Kyuafile in the future during 831 NO_CLEAN builds. This has been fixed in the Makefiles but manual 832 intervention is needed to clean an objdir if you use NO_CLEAN: 833 # find /usr/obj -name Kyuafile | xargs rm -f 834 83520131213: 836 The behavior of gss_pseudo_random() for the krb5 mechanism 837 has changed, for applications requesting a longer random string 838 than produced by the underlying enctype's pseudo-random() function. 839 In particular, the random string produced from a session key of 840 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 841 be different at the 17th octet and later, after this change. 842 The counter used in the PRF+ construction is now encoded as a 843 big-endian integer in accordance with RFC 4402. 844 __FreeBSD_version is bumped to 1100004. 845 84620131108: 847 The WITHOUT_ATF build knob has been removed and its functionality 848 has been subsumed into the more generic WITHOUT_TESTS. If you were 849 using the former to disable the build of the ATF libraries, you 850 should change your settings to use the latter. 851 85220131025: 853 The default version of mtree is nmtree which is obtained from 854 NetBSD. The output is generally the same, but may vary 855 slightly. If you found you need identical output adding 856 "-F freebsd9" to the command line should do the trick. For the 857 time being, the old mtree is available as fmtree. 858 85920131014: 860 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 861 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 862 1.1.4_8 and verify bsdyml not linked in, before running "make 863 delete-old-libs": 864 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 865 or 866 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 867 86820131010: 869 The stable/10 branch has been created in subversion from head 870 revision r256279. 871 87220131010: 873 The rc.d/jail script has been updated to support jail(8) 874 configuration file. The "jail_<jname>_*" rc.conf(5) variables 875 for per-jail configuration are automatically converted to 876 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 877 This is transparently backward compatible. See below about some 878 incompatibilities and rc.conf(5) manual page for more details. 879 880 These variables are now deprecated in favor of jail(8) configuration 881 file. One can use "rc.d/jail config <jname>" command to generate 882 a jail(8) configuration file in /var/run/jail.<jname>.conf without 883 running the jail(8) utility. The default pathname of the 884 configuration file is /etc/jail.conf and can be specified by 885 using $jail_conf or $jail_<jname>_conf variables. 886 887 Please note that jail_devfs_ruleset accepts an integer at 888 this moment. Please consider to rewrite the ruleset name 889 with an integer. 890 89120130930: 892 BIND has been removed from the base system. If all you need 893 is a local resolver, simply enable and start the local_unbound 894 service instead. Otherwise, several versions of BIND are 895 available in the ports tree. The dns/bind99 port is one example. 896 897 With this change, nslookup(1) and dig(1) are no longer in the base 898 system. Users should instead use host(1) and drill(1) which are 899 in the base system. Alternatively, nslookup and dig can 900 be obtained by installing the dns/bind-tools port. 901 90220130916: 903 With the addition of unbound(8), a new unbound user is now 904 required during installworld. "mergemaster -p" can be used to 905 add the user prior to installworld, as documented in the handbook. 906 90720130911: 908 OpenSSH is now built with DNSSEC support, and will by default 909 silently trust signed SSHFP records. This can be controlled with 910 the VerifyHostKeyDNS client configuration setting. DNSSEC support 911 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 912 91320130906: 914 The GNU Compiler Collection and C++ standard library (libstdc++) 915 are no longer built by default on platforms where clang is the system 916 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 917 options in src.conf. 918 91920130905: 920 The PROCDESC kernel option is now part of the GENERIC kernel 921 configuration and is required for the rwhod(8) to work. 922 If you are using custom kernel configuration, you should include 923 'options PROCDESC'. 924 92520130905: 926 The API and ABI related to the Capsicum framework was modified 927 in backward incompatible way. The userland libraries and programs 928 have to be recompiled to work with the new kernel. This includes the 929 following libraries and programs, but the whole buildworld is 930 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 931 kdump, procstat, rwho, rwhod, uniq. 932 93320130903: 934 AES-NI intrinsic support has been added to gcc. The AES-NI module 935 has been updated to use this support. A new gcc is required to build 936 the aesni module on both i386 and amd64. 937 93820130821: 939 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 940 Thus "device padlock_rng" and "device rdrand_rng" should be 941 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 942 94320130813: 944 WITH_ICONV has been split into two feature sets. WITH_ICONV now 945 enables just the iconv* functionality and is now on by default. 946 WITH_LIBICONV_COMPAT enables the libiconv api and link time 947 compatibility. Set WITHOUT_ICONV to build the old way. 948 If you have been using WITH_ICONV before, you will very likely 949 need to turn on WITH_LIBICONV_COMPAT. 950 95120130806: 952 INVARIANTS option now enables DEBUG for code with OpenSolaris and 953 Illumos origin, including ZFS. If you have INVARIANTS in your 954 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 955 explicitly. 956 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 957 locks if WITNESS option was set. Because that generated a lot of 958 witness(9) reports and all of them were believed to be false 959 positives, this is no longer done. New option OPENSOLARIS_WITNESS 960 can be used to achieve the previous behavior. 961 96220130806: 963 Timer values in IPv6 data structures now use time_uptime instead 964 of time_second. Although this is not a user-visible functional 965 change, userland utilities which directly use them---ndp(8), 966 rtadvd(8), and rtsold(8) in the base system---need to be updated 967 to r253970 or later. 968 96920130802: 970 find -delete can now delete the pathnames given as arguments, 971 instead of only files found below them or if the pathname did 972 not contain any slashes. Formerly, the following error message 973 would result: 974 975 find: -delete: <path>: relative path potentially not safe 976 977 Deleting the pathnames given as arguments can be prevented 978 without error messages using -mindepth 1 or by changing 979 directory and passing "." as argument to find. This works in the 980 old as well as the new version of find. 981 98220130726: 983 Behavior of devfs rules path matching has been changed. 984 Pattern is now always matched against fully qualified devfs 985 path and slash characters must be explicitly matched by 986 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 987 subdirectories must be reviewed. 988 98920130716: 990 The default ARM ABI has changed to the ARM EABI. The old ABI is 991 incompatible with the ARM EABI and all programs and modules will 992 need to be rebuilt to work with a new kernel. 993 994 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 995 996 NOTE: Support for the old ABI will be removed in the future and 997 users are advised to upgrade. 998 99920130709: 1000 pkg_install has been disconnected from the build if you really need it 1001 you should add WITH_PKGTOOLS in your src.conf(5). 1002 100320130709: 1004 Most of network statistics structures were changed to be able 1005 keep 64-bits counters. Thus all tools, that work with networking 1006 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1007 100820130618: 1009 Fix a bug that allowed a tracing process (e.g. gdb) to write 1010 to a memory-mapped file in the traced process's address space 1011 even if neither the traced process nor the tracing process had 1012 write access to that file. 1013 101420130615: 1015 CVS has been removed from the base system. An exact copy 1016 of the code is available from the devel/cvs port. 1017 101820130613: 1019 Some people report the following error after the switch to bmake: 1020 1021 make: illegal option -- J 1022 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1023 ... 1024 *** [buildworld] Error code 2 1025 1026 this likely due to an old instance of make in 1027 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1028 which src/Makefile will use that blindly, if it exists, so if 1029 you see the above error: 1030 1031 rm -rf `make -V MAKEPATH` 1032 1033 should resolve it. 1034 103520130516: 1036 Use bmake by default. 1037 Whereas before one could choose to build with bmake via 1038 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1039 make. The goal is to remove these knobs for 10-RELEASE. 1040 1041 It is worth noting that bmake (like gmake) treats the command 1042 line as the unit of failure, rather than statements within the 1043 command line. Thus '(cd some/where && dosomething)' is safer 1044 than 'cd some/where; dosomething'. The '()' allows consistent 1045 behavior in parallel build. 1046 104720130429: 1048 Fix a bug that allows NFS clients to issue READDIR on files. 1049 105020130426: 1051 The WITHOUT_IDEA option has been removed because 1052 the IDEA patent expired. 1053 105420130426: 1055 The sysctl which controls TRIM support under ZFS has been renamed 1056 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1057 enabled by default. 1058 105920130425: 1060 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1061 rather than creating it's own in the temporary directory in 1062 order allow access to bootstrapped versions of tools such as 1063 install and mtree. When upgrading from version of FreeBSD where 1064 the install command does not support -l, you will need to 1065 install a new mergemaster command if mergemaster -p is required. 1066 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1067 && make install). 1068 106920130404: 1070 Legacy ATA stack, disabled and replaced by new CAM-based one since 1071 FreeBSD 9.0, completely removed from the sources. Kernel modules 1072 atadisk and atapi*, user-level tools atacontrol and burncd are 1073 removed. Kernel option `options ATA_CAM` is now permanently enabled 1074 and removed. 1075 107620130319: 1077 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1078 and socketpair(2). Software, in particular Kerberos, may 1079 automatically detect and use these during building. The resulting 1080 binaries will not work on older kernels. 1081 108220130308: 1083 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1084 information, see the respective 20130304 entry). 1085 108620130304: 1087 Recent commits to callout(9) changed the size of struct callout, 1088 so the KBI is probably heavily disturbed. Also, some functions 1089 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1090 by macros. Every kernel module using it won't load, so rebuild 1091 is requested. 1092 1093 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1094 but does not initialize by default (because of the new CTL_DISABLE 1095 option) to save memory. To re-enable it, remove the CTL_DISABLE 1096 option from the kernel config file or set kern.cam.ctl.disable=0 1097 in /boot/loader.conf. 1098 109920130301: 1100 The ctl device has been disabled in GENERIC for i386 and amd64. 1101 This was done due to the extra memory being allocated at system 1102 initialisation time by the ctl driver which was only used if 1103 a CAM target device was created. This makes a FreeBSD system 1104 unusable on 128MB or less of RAM. 1105 110620130208: 1107 A new compression method (lz4) has been merged to -HEAD. Please 1108 refer to zpool-features(7) for more information. 1109 1110 Please refer to the "ZFS notes" section of this file for information 1111 on upgrading boot ZFS pools. 1112 111320130129: 1114 A BSD-licensed patch(1) variant has been added and is installed 1115 as bsdpatch, being the GNU version the default patch. 1116 To inverse the logic and use the BSD-licensed one as default, 1117 while having the GNU version installed as gnupatch, rebuild 1118 and install world with the WITH_BSD_PATCH knob set. 1119 112020130121: 1121 Due to the use of the new -l option to install(1) during build 1122 and install, you must take care not to directly set the INSTALL 1123 make variable in your /etc/make.conf, /etc/src.conf, or on the 1124 command line. If you wish to use the -C flag for all installs 1125 you may be able to add INSTALL+=-C to /etc/make.conf or 1126 /etc/src.conf. 1127 112820130118: 1129 The install(1) option -M has changed meaning and now takes an 1130 argument that is a file or path to append logs to. In the 1131 unlikely event that -M was the last option on the command line 1132 and the command line contained at least two files and a target 1133 directory the first file will have logs appended to it. The -M 1134 option served little practical purpose in the last decade so its 1135 use is expected to be extremely rare. 1136 113720121223: 1138 After switching to Clang as the default compiler some users of ZFS 1139 on i386 systems started to experience stack overflow kernel panics. 1140 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1141 114220121222: 1143 GEOM_LABEL now mangles label names read from file system metadata. 1144 Mangling affect labels containing spaces, non-printable characters, 1145 '%' or '"'. Device names in /etc/fstab and other places may need to 1146 be updated. 1147 114820121217: 1149 By default, only the 10 most recent kernel dumps will be saved. To 1150 restore the previous behaviour (no limit on the number of kernel dumps 1151 stored in the dump directory) add the following line to /etc/rc.conf: 1152 1153 savecore_flags="" 1154 115520121201: 1156 With the addition of auditdistd(8), a new auditdistd user is now 1157 required during installworld. "mergemaster -p" can be used to 1158 add the user prior to installworld, as documented in the handbook. 1159 116020121117: 1161 The sin6_scope_id member variable in struct sockaddr_in6 is now 1162 filled by the kernel before passing the structure to the userland via 1163 sysctl or routing socket. This means the KAME-specific embedded scope 1164 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1165 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1166 __FreeBSD_version is bumped to 1000025. 1167 116820121105: 1169 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1170 This means that the world and kernel will be compiled with clang 1171 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1172 and /usr/bin/cpp. To disable this behavior and revert to building 1173 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1174 of current may need to bootstrap WITHOUT_CLANG first if the clang 1175 build fails (its compatibility window doesn't extend to the 9 stable 1176 branch point). 1177 117820121102: 1179 The IPFIREWALL_FORWARD kernel option has been removed. Its 1180 functionality now turned on by default. 1181 118220121023: 1183 The ZERO_COPY_SOCKET kernel option has been removed and 1184 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1185 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1186 mechanism which is not safe and may result in kernel crashes. 1187 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1188 driver supports disposeable external page sized mbuf storage. 1189 Proper replacements for both zero-copy mechanisms are under 1190 consideration and will eventually lead to complete removal 1191 of the two kernel options. 1192 119320121023: 1194 The IPv4 network stack has been converted to network byte 1195 order. The following modules need to be recompiled together 1196 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1197 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1198 119920121022: 1200 Support for non-MPSAFE filesystems was removed from VFS. The 1201 VFS_VERSION was bumped, all filesystem modules shall be 1202 recompiled. 1203 120420121018: 1205 All the non-MPSAFE filesystems have been disconnected from 1206 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1207 portalfs, smbfs, xfs. 1208 120920121016: 1210 The interface cloning API and ABI has changed. The following 1211 modules need to be recompiled together with kernel: 1212 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1213 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1214 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1215 121620121015: 1217 The sdhci driver was split in two parts: sdhci (generic SD Host 1218 Controller logic) and sdhci_pci (actual hardware driver). 1219 No kernel config modifications are required, but if you 1220 load sdhc as a module you must switch to sdhci_pci instead. 1221 122220121014: 1223 Import the FUSE kernel and userland support into base system. 1224 122520121013: 1226 The GNU sort(1) program has been removed since the BSD-licensed 1227 sort(1) has been the default for quite some time and no serious 1228 problems have been reported. The corresponding WITH_GNU_SORT 1229 knob has also gone. 1230 123120121006: 1232 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1233 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1234 with new kernel. 1235 123620121001: 1237 The net80211(4) ABI has been changed to allow for improved driver 1238 PS-POLL and power-save support. All wireless drivers need to be 1239 recompiled to work with the new kernel. 1240 124120120913: 1242 The random(4) support for the VIA hardware random number 1243 generator (`PADLOCK') is no longer enabled unconditionally. 1244 Add the padlock_rng device in the custom kernel config if 1245 needed. The GENERIC kernels on i386 and amd64 do include the 1246 device, so the change only affects the custom kernel 1247 configurations. 1248 124920120908: 1250 The pf(4) packet filter ABI has been changed. pfctl(8) and 1251 snmp_pf module need to be recompiled to work with new kernel. 1252 125320120828: 1254 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1255 to -HEAD. Pools that have empty_bpobj in active state can not be 1256 imported read-write with ZFS implementations that do not support 1257 this feature. For more information read the zpool-features(5) 1258 manual page. 1259 126020120727: 1261 The sparc64 ZFS loader has been changed to no longer try to auto- 1262 detect ZFS providers based on diskN aliases but now requires these 1263 to be explicitly listed in the OFW boot-device environment variable. 1264 126520120712: 1266 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1267 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1268 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1269 127020120712: 1271 The following sysctls and tunables have been renamed for consistency 1272 with other variables: 1273 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1274 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1275 127620120628: 1277 The sort utility has been replaced with BSD sort. For now, GNU sort 1278 is also available as "gnusort" or the default can be set back to 1279 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1280 installed as "bsdsort". 1281 128220120611: 1283 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1284 Starting with this version the old system of ZFS pool versioning 1285 is superseded by "feature flags". This concept enables forward 1286 compatibility against certain future changes in functionality of ZFS 1287 pools. The first read-only compatible "feature flag" for ZFS pools 1288 is named "com.delphix:async_destroy". For more information 1289 read the new zpool-features(5) manual page. 1290 Please refer to the "ZFS notes" section of this file for information 1291 on upgrading boot ZFS pools. 1292 129320120417: 1294 The malloc(3) implementation embedded in libc now uses sources imported 1295 as contrib/jemalloc. The most disruptive API change is to 1296 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1297 delete it prior to installworld, and optionally re-create it using the 1298 new format after rebooting. See malloc.conf(5) for details 1299 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1300 NAMESPACE section). 1301 130220120328: 1303 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1304 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1305 now spelled mips. This is to aid compatibility with third-party 1306 software that expects this naming scheme in uname(3). Little-endian 1307 settings are unchanged. If you are updating a big-endian mips64 machine 1308 from before this change, you may need to set MACHINE_ARCH=mips64 in 1309 your environment before the new build system will recognize your machine. 1310 131120120306: 1312 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1313 platforms. 1314 131520120229: 1316 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1317 nullfs(5) did not pass through all behaviours to the underlying layer, 1318 as a result if we bound to a socket on the lower layer we could connect 1319 only to the lower path; if we bound to the upper layer we could connect 1320 only to the upper path. The new behavior is one can connect to both the 1321 lower and the upper paths regardless what layer path one binds to. 1322 132320120211: 1324 The getifaddrs upgrade path broken with 20111215 has been restored. 1325 If you have upgraded in between 20111215 and 20120209 you need to 1326 recompile libc again with your kernel. You still need to recompile 1327 world to be able to configure CARP but this restriction already 1328 comes from 20111215. 1329 133020120114: 1331 The set_rcvar() function has been removed from /etc/rc.subr. All 1332 base and ports rc.d scripts have been updated, so if you have a 1333 port installed with a script in /usr/local/etc/rc.d you can either 1334 hand-edit the rcvar= line, or reinstall the port. 1335 1336 An easy way to handle the mass-update of /etc/rc.d: 1337 rm /etc/rc.d/* && mergemaster -i 1338 133920120109: 1340 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1341 on the current CPU and prevents other threads from running. 1342 This behavior can be reverted using the kern.stop_scheduler_on_panic 1343 tunable/sysctl. 1344 The new behavior can be incompatible with kern.sync_on_panic. 1345 134620111215: 1347 The carp(4) facility has been changed significantly. Configuration 1348 of the CARP protocol via ifconfig(8) has changed, as well as format 1349 of CARP events submitted to devd(8) has changed. See manual pages 1350 for more information. The arpbalance feature of carp(4) is currently 1351 not supported anymore. 1352 1353 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1354 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1355 need to be recompiled. 1356 135720111122: 1358 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1359 /dev/wmistat0. 1360 136120111108: 1362 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1363 explicitely support non-MPSAFE filesystems. 1364 It is on by default for all supported platform at this present 1365 time. 1366 136720111101: 1368 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1369 i386 and pc98 GENERIC kernel configuration files. 1370 137120110930: 1372 sysinstall has been removed 1373 137420110923: 1375 The stable/9 branch created in subversion. This corresponds to the 1376 RELENG_9 branch in CVS. 1377 1378COMMON ITEMS: 1379 1380 General Notes 1381 ------------- 1382 Avoid using make -j when upgrading. While generally safe, there are 1383 sometimes problems using -j to upgrade. If your upgrade fails with 1384 -j, please try again without -j. From time to time in the past there 1385 have been problems using -j with buildworld and/or installworld. This 1386 is especially true when upgrading between "distant" versions (eg one 1387 that cross a major release boundary or several minor releases, or when 1388 several months have passed on the -current branch). 1389 1390 Sometimes, obscure build problems are the result of environment 1391 poisoning. This can happen because the make utility reads its 1392 environment when searching for values for global variables. To run 1393 your build attempts in an "environmental clean room", prefix all make 1394 commands with 'env -i '. See the env(1) manual page for more details. 1395 1396 When upgrading from one major version to another it is generally best 1397 to upgrade to the latest code in the currently installed branch first, 1398 then do an upgrade to the new branch. This is the best-tested upgrade 1399 path, and has the highest probability of being successful. Please try 1400 this approach before reporting problems with a major version upgrade. 1401 1402 When upgrading a live system, having a root shell around before 1403 installing anything can help undo problems. Not having a root shell 1404 around can lead to problems if pam has changed too much from your 1405 starting point to allow continued authentication after the upgrade. 1406 1407 This file should be read as a log of events. When a later event changes 1408 information of a prior event, the prior event should not be deleted. 1409 Instead, a pointer to the entry with the new information should be 1410 placed in the old entry. Readers of this file should also sanity check 1411 older entries before relying on them blindly. Authors of new entries 1412 should write them with this in mind. 1413 1414 ZFS notes 1415 --------- 1416 When upgrading the boot ZFS pool to a new version, always follow 1417 these two steps: 1418 1419 1.) recompile and reinstall the ZFS boot loader and boot block 1420 (this is part of "make buildworld" and "make installworld") 1421 1422 2.) update the ZFS boot block on your boot drive 1423 1424 The following example updates the ZFS boot block on the first 1425 partition (freebsd-boot) of a GPT partitioned drive ada0: 1426 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1427 1428 Non-boot pools do not need these updates. 1429 1430 To build a kernel 1431 ----------------- 1432 If you are updating from a prior version of FreeBSD (even one just 1433 a few days old), you should follow this procedure. It is the most 1434 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1435 1436 make kernel-toolchain 1437 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1438 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1439 1440 To test a kernel once 1441 --------------------- 1442 If you just want to boot a kernel once (because you are not sure 1443 if it works, or if you want to boot a known bad kernel to provide 1444 debugging information) run 1445 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1446 nextboot -k testkernel 1447 1448 To just build a kernel when you know that it won't mess you up 1449 -------------------------------------------------------------- 1450 This assumes you are already running a CURRENT system. Replace 1451 ${arch} with the architecture of your machine (e.g. "i386", 1452 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1453 1454 cd src/sys/${arch}/conf 1455 config KERNEL_NAME_HERE 1456 cd ../compile/KERNEL_NAME_HERE 1457 make depend 1458 make 1459 make install 1460 1461 If this fails, go to the "To build a kernel" section. 1462 1463 To rebuild everything and install it on the current system. 1464 ----------------------------------------------------------- 1465 # Note: sometimes if you are running current you gotta do more than 1466 # is listed here if you are upgrading from a really old current. 1467 1468 <make sure you have good level 0 dumps> 1469 make buildworld 1470 make kernel KERNCONF=YOUR_KERNEL_HERE 1471 [1] 1472 <reboot in single user> [3] 1473 mergemaster -Fp [5] 1474 make installworld 1475 mergemaster -Fi [4] 1476 make delete-old [6] 1477 <reboot> 1478 1479 To cross-install current onto a separate partition 1480 -------------------------------------------------- 1481 # In this approach we use a separate partition to hold 1482 # current's root, 'usr', and 'var' directories. A partition 1483 # holding "/", "/usr" and "/var" should be about 2GB in 1484 # size. 1485 1486 <make sure you have good level 0 dumps> 1487 <boot into -stable> 1488 make buildworld 1489 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1490 <maybe newfs current's root partition> 1491 <mount current's root partition on directory ${CURRENT_ROOT}> 1492 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1493 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1494 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1495 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1496 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1497 <reboot into current> 1498 <do a "native" rebuild/install as described in the previous section> 1499 <maybe install compatibility libraries from ports/misc/compat*> 1500 <reboot> 1501 1502 1503 To upgrade in-place from stable to current 1504 ---------------------------------------------- 1505 <make sure you have good level 0 dumps> 1506 make buildworld [9] 1507 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1508 [1] 1509 <reboot in single user> [3] 1510 mergemaster -Fp [5] 1511 make installworld 1512 mergemaster -Fi [4] 1513 make delete-old [6] 1514 <reboot> 1515 1516 Make sure that you've read the UPDATING file to understand the 1517 tweaks to various things you need. At this point in the life 1518 cycle of current, things change often and you are on your own 1519 to cope. The defaults can also change, so please read ALL of 1520 the UPDATING entries. 1521 1522 Also, if you are tracking -current, you must be subscribed to 1523 freebsd-current@freebsd.org. Make sure that before you update 1524 your sources that you have read and understood all the recent 1525 messages there. If in doubt, please track -stable which has 1526 much fewer pitfalls. 1527 1528 [1] If you have third party modules, such as vmware, you 1529 should disable them at this point so they don't crash your 1530 system on reboot. 1531 1532 [3] From the bootblocks, boot -s, and then do 1533 fsck -p 1534 mount -u / 1535 mount -a 1536 cd src 1537 adjkerntz -i # if CMOS is wall time 1538 Also, when doing a major release upgrade, it is required that 1539 you boot into single user mode to do the installworld. 1540 1541 [4] Note: This step is non-optional. Failure to do this step 1542 can result in a significant reduction in the functionality of the 1543 system. Attempting to do it by hand is not recommended and those 1544 that pursue this avenue should read this file carefully, as well 1545 as the archives of freebsd-current and freebsd-hackers mailing lists 1546 for potential gotchas. The -U option is also useful to consider. 1547 See mergemaster(8) for more information. 1548 1549 [5] Usually this step is a noop. However, from time to time 1550 you may need to do this if you get unknown user in the following 1551 step. It never hurts to do it all the time. You may need to 1552 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1553 install) after the buildworld before this step if you last updated 1554 from current before 20130425 or from -stable before 20130430. 1555 1556 [6] This only deletes old files and directories. Old libraries 1557 can be deleted by "make delete-old-libs", but you have to make 1558 sure that no program is using those libraries anymore. 1559 1560 [8] In order to have a kernel that can run the 4.x binaries needed to 1561 do an installworld, you must include the COMPAT_FREEBSD4 option in 1562 your kernel. Failure to do so may leave you with a system that is 1563 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1564 required to run the 5.x binaries on more recent kernels. And so on 1565 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1566 1567 Make sure that you merge any new devices from GENERIC since the 1568 last time you updated your kernel config file. 1569 1570 [9] When checking out sources, you must include the -P flag to have 1571 cvs prune empty directories. 1572 1573 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1574 "?=" instead of the "=" assignment operator, so that buildworld can 1575 override the CPUTYPE if it needs to. 1576 1577 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1578 not on the command line, or in /etc/make.conf. buildworld will 1579 warn if it is improperly defined. 1580FORMAT: 1581 1582This file contains a list, in reverse chronological order, of major 1583breakages in tracking -current. It is not guaranteed to be a complete 1584list of such breakages, and only contains entries since September 23, 2011. 1585If you need to see UPDATING entries from before that date, you will need 1586to fetch an UPDATING file from an older FreeBSD release. 1587 1588Copyright information: 1589 1590Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1591 1592Redistribution, publication, translation and use, with or without 1593modification, in full or in part, in any form or format of this 1594document are permitted without further permission from the author. 1595 1596THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1597IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1598WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1599DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1600INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1601(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1602SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1603HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1604STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1605IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1606POSSIBILITY OF SUCH DAMAGE. 1607 1608Contact Warner Losh if you have any questions about your use of 1609this document. 1610 1611$FreeBSD: releng/11.0/UPDATING 306210 2016-09-22 19:05:41Z gjb $ 1612