UPDATING revision 310072
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 1920161030: 20 isl(4) and cyapa(4) drivers now require a new driver, 21 chromebook_platform(4), to work properly on Chromebook-class hardware. 22 On other types of hardware the drivers may need to be configured using 23 device hints. Please see the corresponding manual pages for details. 24 2520161210: 26 Relocatable object files with the extension of .So have been renamed 27 to use an extension of .pico instead. The purpose of this change is 28 to avoid a name clash with shared libraries on case-insensitive file 29 systems. On those file systems, foo.So is the same file as foo.so. 30 3120160622: 32 The libc stub for the pipe(2) system call has been replaced with 33 a wrapper that calls the pipe2(2) system call and the pipe(2) 34 system call is now only implemented by the kernels that include 35 "options COMPAT_FREEBSD10" in their config file (this is the 36 default). Users should ensure that this option is enabled in 37 their kernel or upgrade userspace to r302092 before upgrading their 38 kernel. 39 4020160527: 41 CAM will now strip leading spaces from SCSI disks' serial numbers. 42 This will effect users who create UFS filesystems on SCSI disks using 43 those disk's diskid device nodes. For example, if /etc/fstab 44 previously contained a line like 45 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 46 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 47 transforms like gmirror may also be affected. ZFS users should 48 generally be fine. 49 5020160523: 51 The bitstring(3) API has been updated with new functionality and 52 improved performance. But it is binary-incompatible with the old API. 53 Objects built with the new headers may not be linked against objects 54 built with the old headers. 55 5620160520: 57 The brk and sbrk functions have been removed from libc on arm64. 58 Binutils from ports has been updated to not link to these 59 functions and should be updated to the latest version before 60 installing a new libc. 61 6220160517: 63 The armv6 port now defaults to hard float ABI. Limited support 64 for running both hardfloat and soft float on the same system 65 is available using the libraries installed with -DWITH_LIBSOFT. 66 This has only been tested as an upgrade path for installworld 67 and packages may fail or need manual intervention to run. New 68 packages will be needed. 69 70 To update an existing self-hosted armv6hf system, you must add 71 TARGET_ARCH=armv6 on the make command line for both the build 72 and the install steps. 73 7420160510: 75 Kernel modules compiled outside of a kernel build now default to 76 installing to /boot/modules instead of /boot/kernel. Many kernel 77 modules built this way (such as those in ports) already overrode 78 KMODDIR explicitly to install into /boot/modules. However, 79 manually building and installing a module from /sys/modules will 80 now install to /boot/modules instead of /boot/kernel. 81 8220160414: 83 The CAM I/O scheduler has been committed to the kernel. There should be 84 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 85 list of known rogues that claim support for this but actually corrupt 86 data is believed to be complete, be on the lookout for data 87 corruption. The known rogue list is believed to be complete: 88 89 o Crucial MX100, M550 drives with MU01 firmware. 90 o Micron M510 and M550 drives with MU01 firmware. 91 o Micron M500 prior to MU07 firmware 92 o Samsung 830, 840, and 850 all firmwares 93 o FCCT M500 all firmwares 94 95 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 96 with working NCQ TRIM. For Micron branded drives, see your sales rep for 97 updated firmware. Black listed drives will work correctly because these 98 drives work correctly so long as no NCQ TRIMs are sent to them. Given 99 this list is the same as found in Linux, it's believed there are no 100 other rogues in the market place. All other models from the above 101 vendors work. 102 103 To be safe, if you are at all concerned, you can quirk each of your 104 drives to prevent NCQ from being sent by setting: 105 kern.cam.ada.X.quirks="0x2" 106 in loader.conf. If the drive requires the 4k sector quirk, set the 107 quirks entry to 0x3. 108 10920160330: 110 The FAST_DEPEND build option has been removed and its functionality is 111 now the one true way. The old mkdep(1) style of 'make depend' has 112 been removed. See 20160311 for further details. 113 11420160317: 115 Resource range types have grown from unsigned long to uintmax_t. All 116 drivers, and anything using libdevinfo, need to be recompiled. 117 11820160311: 119 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 120 builds. It no longer runs mkdep(1) during 'make depend', and the 121 'make depend' stage can safely be skipped now as it is auto ran 122 when building 'make all' and will generate all SRCS and DPSRCS before 123 building anything else. Dependencies are gathered at compile time with 124 -MF flags kept in separate .depend files per object file. Users should 125 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 126 stale .depend files. 127 12820160306: 129 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 130 kernel modules. Therefore, if you load any kernel modules at boot time, 131 please install the boot loaders after you install the kernel, but before 132 rebooting, e.g.: 133 134 make buildworld 135 make kernel KERNCONF=YOUR_KERNEL_HERE 136 make -C sys/boot install 137 <reboot in single user> 138 139 Then follow the usual steps, described in the General Notes section, 140 below. 141 14220160305: 143 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 144 see the 20141231 entry below for information about prerequisites and 145 upgrading, if you are not already using clang 3.5.0 or higher. 146 14720160301: 148 The AIO subsystem is now a standard part of the kernel. The 149 VFS_AIO kernel option and aio.ko kernel module have been removed. 150 Due to stability concerns, asynchronous I/O requests are only 151 permitted on sockets and raw disks by default. To enable 152 asynchronous I/O requests on all file types, set the 153 vfs.aio.enable_unsafe sysctl to a non-zero value. 154 15520160226: 156 The ELF object manipulation tool objcopy is now provided by the 157 ELF Tool Chain project rather than by GNU binutils. It should be a 158 drop-in replacement, with the addition of arm64 support. The 159 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 160 to obtain the GNU version if necessary. 161 16220160129: 163 Building ZFS pools on top of zvols is prohibited by default. That 164 feature has never worked safely; it's always been prone to deadlocks. 165 Using a zvol as the backing store for a VM guest's virtual disk will 166 still work, even if the guest is using ZFS. Legacy behavior can be 167 restored by setting vfs.zfs.vol.recursive=1. 168 16920160119: 170 The NONE and HPN patches has been removed from OpenSSH. They are 171 still available in the security/openssh-portable port. 172 17320160113: 174 With the addition of ypldap(8), a new _ypldap user is now required 175 during installworld. "mergemaster -p" can be used to add the user 176 prior to installworld, as documented in the handbook. 177 17820151216: 179 The tftp loader (pxeboot) now uses the option root-path directive. As a 180 consequence it no longer looks for a pxeboot.4th file on the tftp 181 server. Instead it uses the regular /boot infrastructure as with the 182 other loaders. 183 18420151211: 185 The code to start recording plug and play data into the modules has 186 been committed. While the old tools will properly build a new kernel, 187 a number of warnings about "unknown metadata record 4" will be produced 188 for an older kldxref. To avoid such warnings, make sure to rebuild 189 the kernel toolchain (or world). Make sure that you have r292078 or 190 later when trying to build 292077 or later before rebuilding. 191 19220151207: 193 Debug data files are now built by default with 'make buildworld' and 194 installed with 'make installworld'. This facilitates debugging but 195 requires more disk space both during the build and for the installed 196 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 197 in src.conf(5). 198 19920151130: 200 r291527 changed the internal interface between the nfsd.ko and 201 nfscommon.ko modules. As such, they must both be upgraded to-gether. 202 __FreeBSD_version has been bumped because of this. 203 20420151108: 205 Add support for unicode collation strings leads to a change of 206 order of files listed by ls(1) for example. To get back to the old 207 behaviour, set LC_COLLATE environment variable to "C". 208 209 Databases administrators will need to reindex their databases given 210 collation results will be different. 211 212 Due to a bug in install(1) it is recommended to remove the ancient 213 locales before running make installworld. 214 215 rm -rf /usr/share/locale/* 216 21720151030: 218 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 219 libcrypto.so.7 or libssl.so.7 must be recompiled. 220 22120151020: 222 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 223 Kernel modules isp_2400_multi and isp_2500_multi were removed and 224 should be replaced with isp_2400 and isp_2500 modules respectively. 225 22620151017: 227 The build previously allowed using 'make -n' to not recurse into 228 sub-directories while showing what commands would be executed, and 229 'make -n -n' to recursively show commands. Now 'make -n' will recurse 230 and 'make -N' will not. 231 23220151012: 233 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 234 and etcupdate will now use this file. A custom sendmail.cf is now 235 updated via this mechanism rather than via installworld. If you had 236 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 237 want to remove the exclusion or change it to "always install". 238 /etc/mail/sendmail.cf is now managed the same way regardless of 239 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 240 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 241 24220151011: 243 Compatibility shims for legacy ATA device names have been removed. 244 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 245 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 246 environment variables, /dev/ad* and /dev/ar* symbolic links. 247 24820151006: 249 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 250 Please see the 20141231 entry below for information about prerequisites 251 and upgrading, if you are not already using clang 3.5.0 or higher. 252 25320150924: 254 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 255 and renamed from .symbols to .debug. This reduces the size requirements 256 on the boot partition or file system and provides consistency with 257 userland debug files. 258 259 When using the supported kernel installation method the 260 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 261 as is done with /boot/kernel. 262 263 Developers wishing to maintain the historical behavior of installing 264 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 265 26620150827: 267 The wireless drivers had undergone changes that remove the 'parent 268 interface' from the ifconfig -l output. The rc.d network scripts 269 used to check presence of a parent interface in the list, so old 270 scripts would fail to start wireless networking. Thus, etcupdate(3) 271 or mergemaster(8) run is required after kernel update, to update your 272 rc.d scripts in /etc. 273 27420150827: 275 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 276 These configurations are now automatically interpreted as 277 'scrub fragment reassemble'. 278 27920150817: 280 Kernel-loadable modules for the random(4) device are back. To use 281 them, the kernel must have 282 283 device random 284 options RANDOM_LOADABLE 285 286 kldload(8) can then be used to load random_fortuna.ko 287 or random_yarrow.ko. Please note that due to the indirect 288 function calls that the loadable modules need to provide, 289 the build-in variants will be slightly more efficient. 290 291 The random(4) kernel option RANDOM_DUMMY has been retired due to 292 unpopularity. It was not all that useful anyway. 293 29420150813: 295 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 296 Control over building the ELF Tool Chain tools is now provided by 297 the WITHOUT_TOOLCHAIN knob. 298 29920150810: 300 The polarity of Pulse Per Second (PPS) capture events with the 301 uart(4) driver has been corrected. Prior to this change the PPS 302 "assert" event corresponded to the trailing edge of a positive PPS 303 pulse and the "clear" event was the leading edge of the next pulse. 304 305 As the width of a PPS pulse in a typical GPS receiver is on the 306 order of 1 millisecond, most users will not notice any significant 307 difference with this change. 308 309 Anyone who has compensated for the historical polarity reversal by 310 configuring a negative offset equal to the pulse width will need to 311 remove that workaround. 312 31320150809: 314 The default group assigned to /dev/dri entries has been changed 315 from 'wheel' to 'video' with the id of '44'. If you want to have 316 access to the dri devices please add yourself to the video group 317 with: 318 319 # pw groupmod video -m $USER 320 32120150806: 322 The menu.rc and loader.rc files will now be replaced during 323 upgrades. Please migrate local changes to menu.rc.local and 324 loader.rc.local instead. 325 32620150805: 327 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 328 strings and strip have been removed. The src.conf(5) knob 329 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 330 33120150728: 332 As ZFS requires more kernel stack pages than is the default on some 333 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 334 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 335 336 Please consider using 'options KSTACK_PAGES=X' where X is greater 337 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 338 33920150706: 340 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 341 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 342 default, i.e., they will not contain "::". For example, instead 343 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 344 to have a more specific match, such as different map entries for 345 IPv6:0:0 vs IPv6:0. This change requires that configuration 346 data (including maps, files, classes, custom ruleset, etc.) must 347 use the same format, so make certain such configuration data is 348 upgrading. As a very simple check search for patterns like 349 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 350 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 351 the cf option UseCompressedIPv6Addresses. 352 35320150630: 354 The default kernel entropy-processing algorithm is now 355 Fortuna, replacing Yarrow. 356 357 Assuming you have 'device random' in your kernel config 358 file, the configurations allow a kernel option to override 359 this default. You may choose *ONE* of: 360 361 options RANDOM_YARROW # Legacy /dev/random algorithm. 362 options RANDOM_DUMMY # Blocking-only driver. 363 364 If you have neither, you get Fortuna. For most people, 365 read no further, Fortuna will give a /dev/random that works 366 like it always used to, and the difference will be irrelevant. 367 368 If you remove 'device random', you get *NO* kernel-processed 369 entropy at all. This may be acceptable to folks building 370 embedded systems, but has complications. Carry on reading, 371 and it is assumed you know what you need. 372 373 *PLEASE* read random(4) and random(9) if you are in the 374 habit of tweaking kernel configs, and/or if you are a member 375 of the embedded community, wanting specific and not-usual 376 behaviour from your security subsystems. 377 378 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 379 random', you will NOT have a functioning /dev/random, and 380 many cryptographic features will not work, including SSH. 381 You may also find strange behaviour from the random(3) set 382 of library functions, in particular sranddev(3), srandomdev(3) 383 and arc4random(3). The reason for this is that the KERN_ARND 384 sysctl only returns entropy if it thinks it has some to 385 share, and with RANDOM_DUMMY or no 'device random' this 386 will never happen. 387 38820150623: 389 An additional fix for the issue described in the 20150614 sendmail 390 entry below has been been committed in revision 284717. 391 39220150616: 393 FreeBSD's old make (fmake) has been removed from the system. It is 394 available as the devel/fmake port or via pkg install fmake. 395 39620150615: 397 The fix for the issue described in the 20150614 sendmail entry 398 below has been been committed in revision 284436. The work 399 around described in that entry is no longer needed unless the 400 default setting is overridden by a confDH_PARAMETERS configuration 401 setting of '5' or pointing to a 512 bit DH parameter file. 402 40320150614: 404 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 405 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 406 and devel/kyua to version 0.20+ and adjust any calling code to work 407 with Kyuafile and kyua. 408 40920150614: 410 The import of openssl to address the FreeBSD-SA-15:10.openssl 411 security advisory includes a change which rejects handshakes 412 with DH parameters below 768 bits. sendmail releases prior 413 to 8.15.2 (not yet released), defaulted to a 512 bit 414 DH parameter setting for client connections. To work around 415 this interoperability, sendmail can be configured to use a 416 2048 bit DH parameter by: 417 418 1. Edit /etc/mail/`hostname`.mc 419 2. If a setting for confDH_PARAMETERS does not exist or 420 exists and is set to a string beginning with '5', 421 replace it with '2'. 422 3. If a setting for confDH_PARAMETERS exists and is set to 423 a file path, create a new file with: 424 openssl dhparam -out /path/to/file 2048 425 4. Rebuild the .cf file: 426 cd /etc/mail/; make; make install 427 5. Restart sendmail: 428 cd /etc/mail/; make restart 429 430 A sendmail patch is coming, at which time this file will be 431 updated. 432 43320150604: 434 Generation of legacy formatted entries have been disabled by default 435 in pwd_mkdb(8), as all base system consumers of the legacy formatted 436 entries were converted to use the new format by default when the new, 437 machine independent format have been added and supported since FreeBSD 438 5.x. 439 440 Please see the pwd_mkdb(8) manual page for further details. 441 44220150525: 443 Clang and llvm have been upgraded to 3.6.1 release. Please see the 444 20141231 entry below for information about prerequisites and upgrading, 445 if you are not already using 3.5.0 or higher. 446 44720150521: 448 TI platform code switched to using vendor DTS files and this update 449 may break existing systems running on Beaglebone, Beaglebone Black, 450 and Pandaboard: 451 452 - dtb files should be regenerated/reinstalled. Filenames are the 453 same but content is different now 454 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 455 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 456 addressing scheme is now pin 25 on /dev/gpioc3. 457 - Pandaboard: /etc/ttys should be updated, serial console device is 458 now /dev/ttyu2, not /dev/ttyu0 459 46020150501: 461 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 462 If you need the GNU extension from groff soelim(1), install groff 463 from package: pkg install groff, or via ports: textproc/groff. 464 46520150423: 466 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 467 defined in symlink(7); previously symlinks were silently ignored. 468 46920150415: 470 The const qualifier has been removed from iconv(3) to comply with 471 POSIX. The ports tree is aware of this from r384038 onwards. 472 47320150416: 474 Libraries specified by LIBADD in Makefiles must have a corresponding 475 DPADD_<lib> variable to ensure correct dependencies. This is now 476 enforced in src.libnames.mk. 477 47820150324: 479 From legacy ata(4) driver was removed support for SATA controllers 480 supported by more functional drivers ahci(4), siis(4) and mvs(4). 481 Kernel modules ataahci and ataadaptec were removed completely, 482 replaced by ahci and mvs modules respectively. 483 48420150315: 485 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 486 the 20141231 entry below for information about prerequisites and 487 upgrading, if you are not already using 3.5.0 or higher. 488 48920150307: 490 The 32-bit PowerPC kernel has been changed to a position-independent 491 executable. This can only be booted with a version of loader(8) 492 newer than January 31, 2015, so make sure to update both world and 493 kernel before rebooting. 494 49520150217: 496 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 497 but before r278950, the RNG was not seeded properly. Immediately 498 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 499 ssh keys or openssl keys) that were generated w/ a kernel from that 500 range. This does not affect programs that directly used /dev/random 501 or /dev/urandom. All userland uses of arc4random(3) are affected. 502 50320150210: 504 The autofs(4) ABI was changed in order to restore binary compatibility 505 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 506 with the new kernel. 507 50820150131: 509 The powerpc64 kernel has been changed to a position-independent 510 executable. This can only be booted with a new version of loader(8), 511 so make sure to update both world and kernel before rebooting. 512 51320150118: 514 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 515 only release, no new features have been added. Please see the 20141231 516 entry below for information about prerequisites and upgrading, if you 517 are not already using 3.5.0. 518 51920150107: 520 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 521 taken from the ELF Tool Chain project rather than GNU binutils. They 522 should be drop-in replacements, with the addition of arm64 support. 523 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 524 binutils tools, if necessary. See 20150805 for updated information. 525 52620150105: 527 The default Unbound configuration now enables remote control 528 using a local socket. Users who have already enabled the 529 local_unbound service should regenerate their configuration 530 by running "service local_unbound setup" as root. 531 53220150102: 533 The GNU texinfo and GNU info pages have been removed. 534 To be able to view GNU info pages please install texinfo from ports. 535 53620141231: 537 Clang, llvm and lldb have been upgraded to 3.5.0 release. 538 539 As of this release, a prerequisite for building clang, llvm and lldb is 540 a C++11 capable compiler and C++11 standard library. This means that to 541 be able to successfully build the cross-tools stage of buildworld, with 542 clang as the bootstrap compiler, your system compiler or cross compiler 543 should either be clang 3.3 or later, or gcc 4.8 or later, and your 544 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 545 later. 546 547 On any standard FreeBSD 10.x or 11.x installation, where clang and 548 libc++ are on by default (that is, on x86 or arm), this should work out 549 of the box. 550 551 On 9.x installations where clang is enabled by default, e.g. on x86 and 552 powerpc, libc++ will not be enabled by default, so libc++ should be 553 built (with clang) and installed first. If both clang and libc++ are 554 missing, build clang first, then use it to build libc++. 555 556 On 8.x and earlier installations, upgrade to 9.x first, and then follow 557 the instructions for 9.x above. 558 559 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 560 default, and do not build clang. 561 562 Many embedded systems are resource constrained, and will not be able to 563 build clang in a reasonable time, or in some cases at all. In those 564 cases, cross building bootable systems on amd64 is a workaround. 565 566 This new version of clang introduces a number of new warnings, of which 567 the following are most likely to appear: 568 569 -Wabsolute-value 570 571 This warns in two cases, for both C and C++: 572 * When the code is trying to take the absolute value of an unsigned 573 quantity, which is effectively a no-op, and almost never what was 574 intended. The code should be fixed, if at all possible. If you are 575 sure that the unsigned quantity can be safely cast to signed, without 576 loss of information or undefined behavior, you can add an explicit 577 cast, or disable the warning. 578 579 * When the code is trying to take an absolute value, but the called 580 abs() variant is for the wrong type, which can lead to truncation. 581 If you want to disable the warning instead of fixing the code, please 582 make sure that truncation will not occur, or it might lead to unwanted 583 side-effects. 584 585 -Wtautological-undefined-compare and 586 -Wundefined-bool-conversion 587 588 These warn when C++ code is trying to compare 'this' against NULL, while 589 'this' should never be NULL in well-defined C++ code. However, there is 590 some legacy (pre C++11) code out there, which actively abuses this 591 feature, which was less strictly defined in previous C++ versions. 592 593 Squid and openjdk do this, for example. The warning can be turned off 594 for C++98 and earlier, but compiling the code in C++11 mode might result 595 in unexpected behavior; for example, the parts of the program that are 596 unreachable could be optimized away. 597 59820141222: 599 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 600 kernel sources have been removed. The .h files remain, since some 601 utilities include them. This will need to be fixed later. 602 If "mount -t oldnfs ..." is attempted, it will fail. 603 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 604 the utilities will report errors. 605 60620141121: 607 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 608 directories to top level SUBDIR variable when their parent 609 directory is included in LOCAL_DIRS. Users with build systems with 610 such hierarchies and without SUBDIR entries in the parent 611 directory Makefiles should add them or add the directories to 612 LOCAL_DIRS. 613 61420141109: 615 faith(4) and faithd(8) have been removed from the base system. Faith 616 has been obsolete for a very long time. 617 61820141104: 619 vt(4), the new console driver, is enabled by default. It brings 620 support for Unicode and double-width characters, as well as 621 support for UEFI and integration with the KMS kernel video 622 drivers. 623 624 You may need to update your console settings in /etc/rc.conf, 625 most probably the keymap. During boot, /etc/rc.d/syscons will 626 indicate what you need to do. 627 628 vt(4) still has issues and lacks some features compared to 629 syscons(4). See the wiki for up-to-date information: 630 https://wiki.freebsd.org/Newcons 631 632 If you want to keep using syscons(4), you can do so by adding 633 the following line to /boot/loader.conf: 634 kern.vty=sc 635 63620141102: 637 pjdfstest has been integrated into kyua as an opt-in test suite. 638 Please see share/doc/pjdfstest/README for more details on how to 639 execute it. 640 64120141009: 642 gperf has been removed from the base system for architectures 643 that use clang. Ports that require gperf will obtain it from the 644 devel/gperf port. 645 64620140923: 647 pjdfstest has been moved from tools/regression/pjdfstest to 648 contrib/pjdfstest . 649 65020140922: 651 At svn r271982, The default linux compat kernel ABI has been adjusted 652 to 2.6.18 in support of the linux-c6 compat ports infrastructure 653 update. If you wish to continue using the linux-f10 compat ports, 654 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 655 encouraged to update their linux-compat packages to linux-c6 during 656 their next update cycle. 657 65820140729: 659 The ofwfb driver, used to provide a graphics console on PowerPC when 660 using vt(4), no longer allows mmap() of all physical memory. This 661 will prevent Xorg on PowerPC with some ATI graphics cards from 662 initializing properly unless x11-servers/xorg-server is updated to 663 1.12.4_8 or newer. 664 66520140723: 666 The xdev targets have been converted to using TARGET and 667 TARGET_ARCH instead of XDEV and XDEV_ARCH. 668 66920140719: 670 The default unbound configuration has been modified to address 671 issues with reverse lookups on networks that use private 672 address ranges. If you use the local_unbound service, run 673 "service local_unbound setup" as root to regenerate your 674 configuration, then "service local_unbound reload" to load the 675 new configuration. 676 67720140709: 678 The GNU texinfo and GNU info pages are not built and installed 679 anymore, WITH_INFO knob has been added to allow to built and install 680 them again. 681 UPDATE: see 20150102 entry on texinfo's removal 682 68320140708: 684 The GNU readline library is now an INTERNALLIB - that is, it is 685 statically linked into consumers (GDB and variants) in the base 686 system, and the shared library is no longer installed. The 687 devel/readline port is available for third party software that 688 requires readline. 689 69020140702: 691 The Itanium architecture (ia64) has been removed from the list of 692 known architectures. This is the first step in the removal of the 693 architecture. 694 69520140701: 696 Commit r268115 has added NFSv4.1 server support, merged from 697 projects/nfsv4.1-server. Since this includes changes to the 698 internal interfaces between the NFS related modules, a full 699 build of the kernel and modules will be necessary. 700 __FreeBSD_version has been bumped. 701 70220140629: 703 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 704 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 705 which differs from the behaviour controlled by this knob.) 706 70720140619: 708 Maximal length of the serial number in CTL was increased from 16 to 709 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 710 and ctld, need to be rebuilt to work with a new kernel. 711 71220140606: 713 The libatf-c and libatf-c++ major versions were downgraded to 0 and 714 1 respectively to match the upstream numbers. They were out of 715 sync because, when they were originally added to FreeBSD, the 716 upstream versions were not respected. These libraries are private 717 and not yet built by default, so renumbering them should be a 718 non-issue. However, unclean source trees will yield broken test 719 programs once the operator executes "make delete-old-libs" after a 720 "make installworld". 721 722 Additionally, the atf-sh binary was made private by moving it into 723 /usr/libexec/. Already-built shell test programs will keep the 724 path to the old binary so they will break after "make delete-old" 725 is run. 726 727 If you are using WITH_TESTS=yes (not the default), wipe the object 728 tree and rebuild from scratch to prevent spurious test failures. 729 This is only needed once: the misnumbered libraries and misplaced 730 binaries have been added to OptionalObsoleteFiles.inc so they will 731 be removed during a clean upgrade. 732 73320140512: 734 Clang and llvm have been upgraded to 3.4.1 release. 735 73620140508: 737 We bogusly installed src.opts.mk in /usr/share/mk. This file should 738 be removed to avoid issues in the future (and has been added to 739 ObsoleteFiles.inc). 740 74120140505: 742 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 743 past, it affected all builds that used the bsd.*.mk files. The old 744 behavior was a bug, but people may have relied upon it. To get this 745 behavior back, you can .include /etc/src.conf from /etc/make.conf 746 (which is still global and isn't changed). This also changes the 747 behavior of incremental builds inside the tree of individual 748 directories. Set MAKESYSPATH to ".../share/mk" to do that. 749 Although this has survived make universe and some upgrade scenarios, 750 other upgrade scenarios may have broken. At least one form of 751 temporary breakage was fixed with MAKESYSPATH settings for buildworld 752 as well... In cases where MAKESYSPATH isn't working with this 753 setting, you'll need to set it to the full path to your tree. 754 755 One side effect of all this cleaning up is that bsd.compiler.mk 756 is no longer implicitly included by bsd.own.mk. If you wish to 757 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 758 as well. 759 76020140430: 761 The lindev device has been removed since /dev/full has been made a 762 standard device. __FreeBSD_version has been bumped. 763 76420140424: 765 The knob WITHOUT_VI was added to the base system, which controls 766 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 767 in order to reorder files share/termcap and didn't build ex(1) as a 768 build tool, so building/installing with WITH_VI is highly advised for 769 build hosts for older releases. 770 771 This issue has been fixed in stable/9 and stable/10 in r277022 and 772 r276991, respectively. 773 77420140418: 775 The YES_HESIOD knob has been removed. It has been obsolete for 776 a decade. Please move to using WITH_HESIOD instead or your builds 777 will silently lack HESIOD. 778 77920140405: 780 The uart(4) driver has been changed with respect to its handling 781 of the low-level console. Previously the uart(4) driver prevented 782 any process from changing the baudrate or the CLOCAL and HUPCL 783 control flags. By removing the restrictions, operators can make 784 changes to the serial console port without having to reboot. 785 However, when getty(8) is started on the serial device that is 786 associated with the low-level console, a misconfigured terminal 787 line in /etc/ttys will now have a real impact. 788 Before upgrading the kernel, make sure that /etc/ttys has the 789 serial console device configured as 3wire without baudrate to 790 preserve the previous behaviour. E.g: 791 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 792 79320140306: 794 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 795 to improve performance. To re-enable it, if needed, run rpcbind 796 with command line option -W. 797 79820140226: 799 Switched back to the GPL dtc compiler due to updates in the upstream 800 dts files not being supported by the BSDL dtc compiler. You will need 801 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 802 may result while building dtb files during a kernel build if you fail 803 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 804 80520140216: 806 Clang and llvm have been upgraded to 3.4 release. 807 80820140216: 809 The nve(4) driver has been removed. Please use the nfe(4) driver 810 for NVIDIA nForce MCP Ethernet adapters instead. 811 81220140212: 813 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 814 This could cause certain C++ applications using shared libraries built 815 against the previous version of libc++ to crash. The incompatibility 816 has now been fixed, but any C++ applications or shared libraries built 817 between r261283 and r261801 should be recompiled. 818 81920140204: 820 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 821 capability mode support. Please note that enabling the feature in 822 kernel is still highly recommended. 823 82420140131: 825 OpenSSH is now built with sandbox support, and will use sandbox as 826 the default privilege separation method. This requires Capsicum 827 capability mode support in kernel. 828 82920140128: 830 The libelf and libdwarf libraries have been updated to newer 831 versions from upstream. Shared library version numbers for 832 these two libraries were bumped. Any ports or binaries 833 requiring these two libraries should be recompiled. 834 __FreeBSD_version is bumped to 1100006. 835 83620140110: 837 If a Makefile in a tests/ directory was auto-generating a Kyuafile 838 instead of providing an explicit one, this would prevent such 839 Makefile from providing its own Kyuafile in the future during 840 NO_CLEAN builds. This has been fixed in the Makefiles but manual 841 intervention is needed to clean an objdir if you use NO_CLEAN: 842 # find /usr/obj -name Kyuafile | xargs rm -f 843 84420131213: 845 The behavior of gss_pseudo_random() for the krb5 mechanism 846 has changed, for applications requesting a longer random string 847 than produced by the underlying enctype's pseudo-random() function. 848 In particular, the random string produced from a session key of 849 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 850 be different at the 17th octet and later, after this change. 851 The counter used in the PRF+ construction is now encoded as a 852 big-endian integer in accordance with RFC 4402. 853 __FreeBSD_version is bumped to 1100004. 854 85520131108: 856 The WITHOUT_ATF build knob has been removed and its functionality 857 has been subsumed into the more generic WITHOUT_TESTS. If you were 858 using the former to disable the build of the ATF libraries, you 859 should change your settings to use the latter. 860 86120131025: 862 The default version of mtree is nmtree which is obtained from 863 NetBSD. The output is generally the same, but may vary 864 slightly. If you found you need identical output adding 865 "-F freebsd9" to the command line should do the trick. For the 866 time being, the old mtree is available as fmtree. 867 86820131014: 869 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 870 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 871 1.1.4_8 and verify bsdyml not linked in, before running "make 872 delete-old-libs": 873 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 874 or 875 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 876 87720131010: 878 The stable/10 branch has been created in subversion from head 879 revision r256279. 880 88120131010: 882 The rc.d/jail script has been updated to support jail(8) 883 configuration file. The "jail_<jname>_*" rc.conf(5) variables 884 for per-jail configuration are automatically converted to 885 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 886 This is transparently backward compatible. See below about some 887 incompatibilities and rc.conf(5) manual page for more details. 888 889 These variables are now deprecated in favor of jail(8) configuration 890 file. One can use "rc.d/jail config <jname>" command to generate 891 a jail(8) configuration file in /var/run/jail.<jname>.conf without 892 running the jail(8) utility. The default pathname of the 893 configuration file is /etc/jail.conf and can be specified by 894 using $jail_conf or $jail_<jname>_conf variables. 895 896 Please note that jail_devfs_ruleset accepts an integer at 897 this moment. Please consider to rewrite the ruleset name 898 with an integer. 899 90020130930: 901 BIND has been removed from the base system. If all you need 902 is a local resolver, simply enable and start the local_unbound 903 service instead. Otherwise, several versions of BIND are 904 available in the ports tree. The dns/bind99 port is one example. 905 906 With this change, nslookup(1) and dig(1) are no longer in the base 907 system. Users should instead use host(1) and drill(1) which are 908 in the base system. Alternatively, nslookup and dig can 909 be obtained by installing the dns/bind-tools port. 910 91120130916: 912 With the addition of unbound(8), a new unbound user is now 913 required during installworld. "mergemaster -p" can be used to 914 add the user prior to installworld, as documented in the handbook. 915 91620130911: 917 OpenSSH is now built with DNSSEC support, and will by default 918 silently trust signed SSHFP records. This can be controlled with 919 the VerifyHostKeyDNS client configuration setting. DNSSEC support 920 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 921 92220130906: 923 The GNU Compiler Collection and C++ standard library (libstdc++) 924 are no longer built by default on platforms where clang is the system 925 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 926 options in src.conf. 927 92820130905: 929 The PROCDESC kernel option is now part of the GENERIC kernel 930 configuration and is required for the rwhod(8) to work. 931 If you are using custom kernel configuration, you should include 932 'options PROCDESC'. 933 93420130905: 935 The API and ABI related to the Capsicum framework was modified 936 in backward incompatible way. The userland libraries and programs 937 have to be recompiled to work with the new kernel. This includes the 938 following libraries and programs, but the whole buildworld is 939 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 940 kdump, procstat, rwho, rwhod, uniq. 941 94220130903: 943 AES-NI intrinsic support has been added to gcc. The AES-NI module 944 has been updated to use this support. A new gcc is required to build 945 the aesni module on both i386 and amd64. 946 94720130821: 948 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 949 Thus "device padlock_rng" and "device rdrand_rng" should be 950 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 951 95220130813: 953 WITH_ICONV has been split into two feature sets. WITH_ICONV now 954 enables just the iconv* functionality and is now on by default. 955 WITH_LIBICONV_COMPAT enables the libiconv api and link time 956 compatibility. Set WITHOUT_ICONV to build the old way. 957 If you have been using WITH_ICONV before, you will very likely 958 need to turn on WITH_LIBICONV_COMPAT. 959 96020130806: 961 INVARIANTS option now enables DEBUG for code with OpenSolaris and 962 Illumos origin, including ZFS. If you have INVARIANTS in your 963 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 964 explicitly. 965 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 966 locks if WITNESS option was set. Because that generated a lot of 967 witness(9) reports and all of them were believed to be false 968 positives, this is no longer done. New option OPENSOLARIS_WITNESS 969 can be used to achieve the previous behavior. 970 97120130806: 972 Timer values in IPv6 data structures now use time_uptime instead 973 of time_second. Although this is not a user-visible functional 974 change, userland utilities which directly use them---ndp(8), 975 rtadvd(8), and rtsold(8) in the base system---need to be updated 976 to r253970 or later. 977 97820130802: 979 find -delete can now delete the pathnames given as arguments, 980 instead of only files found below them or if the pathname did 981 not contain any slashes. Formerly, the following error message 982 would result: 983 984 find: -delete: <path>: relative path potentially not safe 985 986 Deleting the pathnames given as arguments can be prevented 987 without error messages using -mindepth 1 or by changing 988 directory and passing "." as argument to find. This works in the 989 old as well as the new version of find. 990 99120130726: 992 Behavior of devfs rules path matching has been changed. 993 Pattern is now always matched against fully qualified devfs 994 path and slash characters must be explicitly matched by 995 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 996 subdirectories must be reviewed. 997 99820130716: 999 The default ARM ABI has changed to the ARM EABI. The old ABI is 1000 incompatible with the ARM EABI and all programs and modules will 1001 need to be rebuilt to work with a new kernel. 1002 1003 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1004 1005 NOTE: Support for the old ABI will be removed in the future and 1006 users are advised to upgrade. 1007 100820130709: 1009 pkg_install has been disconnected from the build if you really need it 1010 you should add WITH_PKGTOOLS in your src.conf(5). 1011 101220130709: 1013 Most of network statistics structures were changed to be able 1014 keep 64-bits counters. Thus all tools, that work with networking 1015 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1016 101720130618: 1018 Fix a bug that allowed a tracing process (e.g. gdb) to write 1019 to a memory-mapped file in the traced process's address space 1020 even if neither the traced process nor the tracing process had 1021 write access to that file. 1022 102320130615: 1024 CVS has been removed from the base system. An exact copy 1025 of the code is available from the devel/cvs port. 1026 102720130613: 1028 Some people report the following error after the switch to bmake: 1029 1030 make: illegal option -- J 1031 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1032 ... 1033 *** [buildworld] Error code 2 1034 1035 this likely due to an old instance of make in 1036 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1037 which src/Makefile will use that blindly, if it exists, so if 1038 you see the above error: 1039 1040 rm -rf `make -V MAKEPATH` 1041 1042 should resolve it. 1043 104420130516: 1045 Use bmake by default. 1046 Whereas before one could choose to build with bmake via 1047 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1048 make. The goal is to remove these knobs for 10-RELEASE. 1049 1050 It is worth noting that bmake (like gmake) treats the command 1051 line as the unit of failure, rather than statements within the 1052 command line. Thus '(cd some/where && dosomething)' is safer 1053 than 'cd some/where; dosomething'. The '()' allows consistent 1054 behavior in parallel build. 1055 105620130429: 1057 Fix a bug that allows NFS clients to issue READDIR on files. 1058 105920130426: 1060 The WITHOUT_IDEA option has been removed because 1061 the IDEA patent expired. 1062 106320130426: 1064 The sysctl which controls TRIM support under ZFS has been renamed 1065 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1066 enabled by default. 1067 106820130425: 1069 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1070 rather than creating it's own in the temporary directory in 1071 order allow access to bootstrapped versions of tools such as 1072 install and mtree. When upgrading from version of FreeBSD where 1073 the install command does not support -l, you will need to 1074 install a new mergemaster command if mergemaster -p is required. 1075 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1076 && make install). 1077 107820130404: 1079 Legacy ATA stack, disabled and replaced by new CAM-based one since 1080 FreeBSD 9.0, completely removed from the sources. Kernel modules 1081 atadisk and atapi*, user-level tools atacontrol and burncd are 1082 removed. Kernel option `options ATA_CAM` is now permanently enabled 1083 and removed. 1084 108520130319: 1086 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1087 and socketpair(2). Software, in particular Kerberos, may 1088 automatically detect and use these during building. The resulting 1089 binaries will not work on older kernels. 1090 109120130308: 1092 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1093 information, see the respective 20130304 entry). 1094 109520130304: 1096 Recent commits to callout(9) changed the size of struct callout, 1097 so the KBI is probably heavily disturbed. Also, some functions 1098 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1099 by macros. Every kernel module using it won't load, so rebuild 1100 is requested. 1101 1102 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1103 but does not initialize by default (because of the new CTL_DISABLE 1104 option) to save memory. To re-enable it, remove the CTL_DISABLE 1105 option from the kernel config file or set kern.cam.ctl.disable=0 1106 in /boot/loader.conf. 1107 110820130301: 1109 The ctl device has been disabled in GENERIC for i386 and amd64. 1110 This was done due to the extra memory being allocated at system 1111 initialisation time by the ctl driver which was only used if 1112 a CAM target device was created. This makes a FreeBSD system 1113 unusable on 128MB or less of RAM. 1114 111520130208: 1116 A new compression method (lz4) has been merged to -HEAD. Please 1117 refer to zpool-features(7) for more information. 1118 1119 Please refer to the "ZFS notes" section of this file for information 1120 on upgrading boot ZFS pools. 1121 112220130129: 1123 A BSD-licensed patch(1) variant has been added and is installed 1124 as bsdpatch, being the GNU version the default patch. 1125 To inverse the logic and use the BSD-licensed one as default, 1126 while having the GNU version installed as gnupatch, rebuild 1127 and install world with the WITH_BSD_PATCH knob set. 1128 112920130121: 1130 Due to the use of the new -l option to install(1) during build 1131 and install, you must take care not to directly set the INSTALL 1132 make variable in your /etc/make.conf, /etc/src.conf, or on the 1133 command line. If you wish to use the -C flag for all installs 1134 you may be able to add INSTALL+=-C to /etc/make.conf or 1135 /etc/src.conf. 1136 113720130118: 1138 The install(1) option -M has changed meaning and now takes an 1139 argument that is a file or path to append logs to. In the 1140 unlikely event that -M was the last option on the command line 1141 and the command line contained at least two files and a target 1142 directory the first file will have logs appended to it. The -M 1143 option served little practical purpose in the last decade so its 1144 use is expected to be extremely rare. 1145 114620121223: 1147 After switching to Clang as the default compiler some users of ZFS 1148 on i386 systems started to experience stack overflow kernel panics. 1149 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1150 115120121222: 1152 GEOM_LABEL now mangles label names read from file system metadata. 1153 Mangling affect labels containing spaces, non-printable characters, 1154 '%' or '"'. Device names in /etc/fstab and other places may need to 1155 be updated. 1156 115720121217: 1158 By default, only the 10 most recent kernel dumps will be saved. To 1159 restore the previous behaviour (no limit on the number of kernel dumps 1160 stored in the dump directory) add the following line to /etc/rc.conf: 1161 1162 savecore_flags="" 1163 116420121201: 1165 With the addition of auditdistd(8), a new auditdistd user is now 1166 required during installworld. "mergemaster -p" can be used to 1167 add the user prior to installworld, as documented in the handbook. 1168 116920121117: 1170 The sin6_scope_id member variable in struct sockaddr_in6 is now 1171 filled by the kernel before passing the structure to the userland via 1172 sysctl or routing socket. This means the KAME-specific embedded scope 1173 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1174 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1175 __FreeBSD_version is bumped to 1000025. 1176 117720121105: 1178 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1179 This means that the world and kernel will be compiled with clang 1180 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1181 and /usr/bin/cpp. To disable this behavior and revert to building 1182 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1183 of current may need to bootstrap WITHOUT_CLANG first if the clang 1184 build fails (its compatibility window doesn't extend to the 9 stable 1185 branch point). 1186 118720121102: 1188 The IPFIREWALL_FORWARD kernel option has been removed. Its 1189 functionality now turned on by default. 1190 119120121023: 1192 The ZERO_COPY_SOCKET kernel option has been removed and 1193 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1194 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1195 mechanism which is not safe and may result in kernel crashes. 1196 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1197 driver supports disposeable external page sized mbuf storage. 1198 Proper replacements for both zero-copy mechanisms are under 1199 consideration and will eventually lead to complete removal 1200 of the two kernel options. 1201 120220121023: 1203 The IPv4 network stack has been converted to network byte 1204 order. The following modules need to be recompiled together 1205 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1206 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1207 120820121022: 1209 Support for non-MPSAFE filesystems was removed from VFS. The 1210 VFS_VERSION was bumped, all filesystem modules shall be 1211 recompiled. 1212 121320121018: 1214 All the non-MPSAFE filesystems have been disconnected from 1215 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1216 portalfs, smbfs, xfs. 1217 121820121016: 1219 The interface cloning API and ABI has changed. The following 1220 modules need to be recompiled together with kernel: 1221 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1222 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1223 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1224 122520121015: 1226 The sdhci driver was split in two parts: sdhci (generic SD Host 1227 Controller logic) and sdhci_pci (actual hardware driver). 1228 No kernel config modifications are required, but if you 1229 load sdhc as a module you must switch to sdhci_pci instead. 1230 123120121014: 1232 Import the FUSE kernel and userland support into base system. 1233 123420121013: 1235 The GNU sort(1) program has been removed since the BSD-licensed 1236 sort(1) has been the default for quite some time and no serious 1237 problems have been reported. The corresponding WITH_GNU_SORT 1238 knob has also gone. 1239 124020121006: 1241 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1242 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1243 with new kernel. 1244 124520121001: 1246 The net80211(4) ABI has been changed to allow for improved driver 1247 PS-POLL and power-save support. All wireless drivers need to be 1248 recompiled to work with the new kernel. 1249 125020120913: 1251 The random(4) support for the VIA hardware random number 1252 generator (`PADLOCK') is no longer enabled unconditionally. 1253 Add the padlock_rng device in the custom kernel config if 1254 needed. The GENERIC kernels on i386 and amd64 do include the 1255 device, so the change only affects the custom kernel 1256 configurations. 1257 125820120908: 1259 The pf(4) packet filter ABI has been changed. pfctl(8) and 1260 snmp_pf module need to be recompiled to work with new kernel. 1261 126220120828: 1263 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1264 to -HEAD. Pools that have empty_bpobj in active state can not be 1265 imported read-write with ZFS implementations that do not support 1266 this feature. For more information read the zpool-features(5) 1267 manual page. 1268 126920120727: 1270 The sparc64 ZFS loader has been changed to no longer try to auto- 1271 detect ZFS providers based on diskN aliases but now requires these 1272 to be explicitly listed in the OFW boot-device environment variable. 1273 127420120712: 1275 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1276 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1277 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1278 127920120712: 1280 The following sysctls and tunables have been renamed for consistency 1281 with other variables: 1282 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1283 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1284 128520120628: 1286 The sort utility has been replaced with BSD sort. For now, GNU sort 1287 is also available as "gnusort" or the default can be set back to 1288 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1289 installed as "bsdsort". 1290 129120120611: 1292 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1293 Starting with this version the old system of ZFS pool versioning 1294 is superseded by "feature flags". This concept enables forward 1295 compatibility against certain future changes in functionality of ZFS 1296 pools. The first read-only compatible "feature flag" for ZFS pools 1297 is named "com.delphix:async_destroy". For more information 1298 read the new zpool-features(5) manual page. 1299 Please refer to the "ZFS notes" section of this file for information 1300 on upgrading boot ZFS pools. 1301 130220120417: 1303 The malloc(3) implementation embedded in libc now uses sources imported 1304 as contrib/jemalloc. The most disruptive API change is to 1305 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1306 delete it prior to installworld, and optionally re-create it using the 1307 new format after rebooting. See malloc.conf(5) for details 1308 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1309 NAMESPACE section). 1310 131120120328: 1312 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1313 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1314 now spelled mips. This is to aid compatibility with third-party 1315 software that expects this naming scheme in uname(3). Little-endian 1316 settings are unchanged. If you are updating a big-endian mips64 machine 1317 from before this change, you may need to set MACHINE_ARCH=mips64 in 1318 your environment before the new build system will recognize your machine. 1319 132020120306: 1321 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1322 platforms. 1323 132420120229: 1325 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1326 nullfs(5) did not pass through all behaviours to the underlying layer, 1327 as a result if we bound to a socket on the lower layer we could connect 1328 only to the lower path; if we bound to the upper layer we could connect 1329 only to the upper path. The new behavior is one can connect to both the 1330 lower and the upper paths regardless what layer path one binds to. 1331 133220120211: 1333 The getifaddrs upgrade path broken with 20111215 has been restored. 1334 If you have upgraded in between 20111215 and 20120209 you need to 1335 recompile libc again with your kernel. You still need to recompile 1336 world to be able to configure CARP but this restriction already 1337 comes from 20111215. 1338 133920120114: 1340 The set_rcvar() function has been removed from /etc/rc.subr. All 1341 base and ports rc.d scripts have been updated, so if you have a 1342 port installed with a script in /usr/local/etc/rc.d you can either 1343 hand-edit the rcvar= line, or reinstall the port. 1344 1345 An easy way to handle the mass-update of /etc/rc.d: 1346 rm /etc/rc.d/* && mergemaster -i 1347 134820120109: 1349 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1350 on the current CPU and prevents other threads from running. 1351 This behavior can be reverted using the kern.stop_scheduler_on_panic 1352 tunable/sysctl. 1353 The new behavior can be incompatible with kern.sync_on_panic. 1354 135520111215: 1356 The carp(4) facility has been changed significantly. Configuration 1357 of the CARP protocol via ifconfig(8) has changed, as well as format 1358 of CARP events submitted to devd(8) has changed. See manual pages 1359 for more information. The arpbalance feature of carp(4) is currently 1360 not supported anymore. 1361 1362 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1363 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1364 need to be recompiled. 1365 136620111122: 1367 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1368 /dev/wmistat0. 1369 137020111108: 1371 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1372 explicitely support non-MPSAFE filesystems. 1373 It is on by default for all supported platform at this present 1374 time. 1375 137620111101: 1377 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1378 i386 and pc98 GENERIC kernel configuration files. 1379 138020110930: 1381 sysinstall has been removed 1382 138320110923: 1384 The stable/9 branch created in subversion. This corresponds to the 1385 RELENG_9 branch in CVS. 1386 1387COMMON ITEMS: 1388 1389 General Notes 1390 ------------- 1391 Avoid using make -j when upgrading. While generally safe, there are 1392 sometimes problems using -j to upgrade. If your upgrade fails with 1393 -j, please try again without -j. From time to time in the past there 1394 have been problems using -j with buildworld and/or installworld. This 1395 is especially true when upgrading between "distant" versions (eg one 1396 that cross a major release boundary or several minor releases, or when 1397 several months have passed on the -current branch). 1398 1399 Sometimes, obscure build problems are the result of environment 1400 poisoning. This can happen because the make utility reads its 1401 environment when searching for values for global variables. To run 1402 your build attempts in an "environmental clean room", prefix all make 1403 commands with 'env -i '. See the env(1) manual page for more details. 1404 1405 When upgrading from one major version to another it is generally best 1406 to upgrade to the latest code in the currently installed branch first, 1407 then do an upgrade to the new branch. This is the best-tested upgrade 1408 path, and has the highest probability of being successful. Please try 1409 this approach before reporting problems with a major version upgrade. 1410 1411 When upgrading a live system, having a root shell around before 1412 installing anything can help undo problems. Not having a root shell 1413 around can lead to problems if pam has changed too much from your 1414 starting point to allow continued authentication after the upgrade. 1415 1416 This file should be read as a log of events. When a later event changes 1417 information of a prior event, the prior event should not be deleted. 1418 Instead, a pointer to the entry with the new information should be 1419 placed in the old entry. Readers of this file should also sanity check 1420 older entries before relying on them blindly. Authors of new entries 1421 should write them with this in mind. 1422 1423 ZFS notes 1424 --------- 1425 When upgrading the boot ZFS pool to a new version, always follow 1426 these two steps: 1427 1428 1.) recompile and reinstall the ZFS boot loader and boot block 1429 (this is part of "make buildworld" and "make installworld") 1430 1431 2.) update the ZFS boot block on your boot drive 1432 1433 The following example updates the ZFS boot block on the first 1434 partition (freebsd-boot) of a GPT partitioned drive ada0: 1435 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1436 1437 Non-boot pools do not need these updates. 1438 1439 To build a kernel 1440 ----------------- 1441 If you are updating from a prior version of FreeBSD (even one just 1442 a few days old), you should follow this procedure. It is the most 1443 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1444 1445 make kernel-toolchain 1446 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1447 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1448 1449 To test a kernel once 1450 --------------------- 1451 If you just want to boot a kernel once (because you are not sure 1452 if it works, or if you want to boot a known bad kernel to provide 1453 debugging information) run 1454 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1455 nextboot -k testkernel 1456 1457 To just build a kernel when you know that it won't mess you up 1458 -------------------------------------------------------------- 1459 This assumes you are already running a CURRENT system. Replace 1460 ${arch} with the architecture of your machine (e.g. "i386", 1461 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1462 1463 cd src/sys/${arch}/conf 1464 config KERNEL_NAME_HERE 1465 cd ../compile/KERNEL_NAME_HERE 1466 make depend 1467 make 1468 make install 1469 1470 If this fails, go to the "To build a kernel" section. 1471 1472 To rebuild everything and install it on the current system. 1473 ----------------------------------------------------------- 1474 # Note: sometimes if you are running current you gotta do more than 1475 # is listed here if you are upgrading from a really old current. 1476 1477 <make sure you have good level 0 dumps> 1478 make buildworld 1479 make kernel KERNCONF=YOUR_KERNEL_HERE 1480 [1] 1481 <reboot in single user> [3] 1482 mergemaster -Fp [5] 1483 make installworld 1484 mergemaster -Fi [4] 1485 make delete-old [6] 1486 <reboot> 1487 1488 To cross-install current onto a separate partition 1489 -------------------------------------------------- 1490 # In this approach we use a separate partition to hold 1491 # current's root, 'usr', and 'var' directories. A partition 1492 # holding "/", "/usr" and "/var" should be about 2GB in 1493 # size. 1494 1495 <make sure you have good level 0 dumps> 1496 <boot into -stable> 1497 make buildworld 1498 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1499 <maybe newfs current's root partition> 1500 <mount current's root partition on directory ${CURRENT_ROOT}> 1501 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1502 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1503 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1504 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1505 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1506 <reboot into current> 1507 <do a "native" rebuild/install as described in the previous section> 1508 <maybe install compatibility libraries from ports/misc/compat*> 1509 <reboot> 1510 1511 1512 To upgrade in-place from stable to current 1513 ---------------------------------------------- 1514 <make sure you have good level 0 dumps> 1515 make buildworld [9] 1516 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1517 [1] 1518 <reboot in single user> [3] 1519 mergemaster -Fp [5] 1520 make installworld 1521 mergemaster -Fi [4] 1522 make delete-old [6] 1523 <reboot> 1524 1525 Make sure that you've read the UPDATING file to understand the 1526 tweaks to various things you need. At this point in the life 1527 cycle of current, things change often and you are on your own 1528 to cope. The defaults can also change, so please read ALL of 1529 the UPDATING entries. 1530 1531 Also, if you are tracking -current, you must be subscribed to 1532 freebsd-current@freebsd.org. Make sure that before you update 1533 your sources that you have read and understood all the recent 1534 messages there. If in doubt, please track -stable which has 1535 much fewer pitfalls. 1536 1537 [1] If you have third party modules, such as vmware, you 1538 should disable them at this point so they don't crash your 1539 system on reboot. 1540 1541 [3] From the bootblocks, boot -s, and then do 1542 fsck -p 1543 mount -u / 1544 mount -a 1545 cd src 1546 adjkerntz -i # if CMOS is wall time 1547 Also, when doing a major release upgrade, it is required that 1548 you boot into single user mode to do the installworld. 1549 1550 [4] Note: This step is non-optional. Failure to do this step 1551 can result in a significant reduction in the functionality of the 1552 system. Attempting to do it by hand is not recommended and those 1553 that pursue this avenue should read this file carefully, as well 1554 as the archives of freebsd-current and freebsd-hackers mailing lists 1555 for potential gotchas. The -U option is also useful to consider. 1556 See mergemaster(8) for more information. 1557 1558 [5] Usually this step is a noop. However, from time to time 1559 you may need to do this if you get unknown user in the following 1560 step. It never hurts to do it all the time. You may need to 1561 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1562 install) after the buildworld before this step if you last updated 1563 from current before 20130425 or from -stable before 20130430. 1564 1565 [6] This only deletes old files and directories. Old libraries 1566 can be deleted by "make delete-old-libs", but you have to make 1567 sure that no program is using those libraries anymore. 1568 1569 [8] In order to have a kernel that can run the 4.x binaries needed to 1570 do an installworld, you must include the COMPAT_FREEBSD4 option in 1571 your kernel. Failure to do so may leave you with a system that is 1572 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1573 required to run the 5.x binaries on more recent kernels. And so on 1574 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1575 1576 Make sure that you merge any new devices from GENERIC since the 1577 last time you updated your kernel config file. 1578 1579 [9] When checking out sources, you must include the -P flag to have 1580 cvs prune empty directories. 1581 1582 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1583 "?=" instead of the "=" assignment operator, so that buildworld can 1584 override the CPUTYPE if it needs to. 1585 1586 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1587 not on the command line, or in /etc/make.conf. buildworld will 1588 warn if it is improperly defined. 1589FORMAT: 1590 1591This file contains a list, in reverse chronological order, of major 1592breakages in tracking -current. It is not guaranteed to be a complete 1593list of such breakages, and only contains entries since September 23, 2011. 1594If you need to see UPDATING entries from before that date, you will need 1595to fetch an UPDATING file from an older FreeBSD release. 1596 1597Copyright information: 1598 1599Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1600 1601Redistribution, publication, translation and use, with or without 1602modification, in full or in part, in any form or format of this 1603document are permitted without further permission from the author. 1604 1605THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1606IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1607WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1608DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1609INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1610(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1611SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1612HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1613STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1614IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1615POSSIBILITY OF SUCH DAMAGE. 1616 1617Contact Warner Losh if you have any questions about your use of 1618this document. 1619 1620$FreeBSD: stable/11/UPDATING 310072 2016-12-14 16:27:28Z avg $ 1621