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 19NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW: 20 FreeBSD 12.x has many debugging features turned on, in both the kernel 21 and userland. These features attempt to detect incorrect use of 22 system primitives, and encourage loud failure through extra sanity 23 checking and fail stop semantics. They also substantially impact 24 system performance. If you want to do performance measurement, 25 benchmarking, and optimization, you'll want to turn them off. This 26 includes various WITNESS- related kernel options, INVARIANTS, malloc 27 debugging flags in userland, and various verbose features in the 28 kernel. Many developers choose to disable these features on build 29 machines to maximize performance. (To completely disable malloc 30 debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely 31 disable the most expensive debugging functionality run 32 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 33 3420160924: 35 Relocatable object files with the extension of .So have been renamed 36 to use an extension of .pico instead. The purpose of this change is 37 to avoid a name clash with shared libraries on case-insensitive file 38 systems. On those file systems, foo.So is the same file as foo.so. 39 4020160918: 41 GNU rcs has been turned off by default. It can (temporarily) be built 42 again by adding WITH_RCS knob in src.conf. 43 Otherwise, GNU rcs is available from packages: 44 - rcs: Latest GPLv3 GNU rcs version. 45 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base. 46 4720160918: 48 The backup_uses_rcs functionality has been removed from rc.subr. 49 5020160908: 51 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into 52 two separate components, QUEUE_MACRO_DEBUG_TRACE and 53 QUEUE_MACRO_DEBUG_TRASH. Define both for the original 54 QUEUE_MACRO_DEBUG behavior. 55 5620160824: 57 r304787 changed some ioctl interfaces between the iSCSI userspace 58 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be 59 rebuilt to work with new kernels. __FreeBSD_version has been bumped 60 to 1200005. 61 6220160818: 63 The UDP receive code has been updated to only treat incoming UDP 64 packets that were addressed to an L2 broadcast address as L3 65 broadcast packets. It is not expected that this will affect any 66 standards-conforming UDP application. The new behaviour can be 67 disabled by setting the sysctl net.inet.udp.require_l2_bcast to 68 0. 69 7020160818: 71 Remove the openbsd_poll system call. 72 __FreeBSD_version has been bumped because of this. 73 7420160622: 75 The libc stub for the pipe(2) system call has been replaced with 76 a wrapper that calls the pipe2(2) system call and the pipe(2) 77 system call is now only implemented by the kernels that include 78 "options COMPAT_FREEBSD10" in their config file (this is the 79 default). Users should ensure that this option is enabled in 80 their kernel or upgrade userspace to r302092 before upgrading their 81 kernel. 82 8320160527: 84 CAM will now strip leading spaces from SCSI disks' serial numbers. 85 This will effect users who create UFS filesystems on SCSI disks using 86 those disk's diskid device nodes. For example, if /etc/fstab 87 previously contained a line like 88 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should 89 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom 90 transforms like gmirror may also be affected. ZFS users should 91 generally be fine. 92 9320160523: 94 The bitstring(3) API has been updated with new functionality and 95 improved performance. But it is binary-incompatible with the old API. 96 Objects built with the new headers may not be linked against objects 97 built with the old headers. 98 9920160520: 100 The brk and sbrk functions have been removed from libc on arm64. 101 Binutils from ports has been updated to not link to these 102 functions and should be updated to the latest version before 103 installing a new libc. 104 10520160517: 106 The armv6 port now defaults to hard float ABI. Limited support 107 for running both hardfloat and soft float on the same system 108 is available using the libraries installed with -DWITH_LIBSOFT. 109 This has only been tested as an upgrade path for installworld 110 and packages may fail or need manual intervention to run. New 111 packages will be needed. 112 113 To update an existing self-hosted armv6hf system, you must add 114 TARGET_ARCH=armv6 on the make command line for both the build 115 and the install steps. 116 11720160510: 118 Kernel modules compiled outside of a kernel build now default to 119 installing to /boot/modules instead of /boot/kernel. Many kernel 120 modules built this way (such as those in ports) already overrode 121 KMODDIR explicitly to install into /boot/modules. However, 122 manually building and installing a module from /sys/modules will 123 now install to /boot/modules instead of /boot/kernel. 124 12520160414: 126 The CAM I/O scheduler has been committed to the kernel. There should be 127 no user visible impact. This does enable NCQ Trim on ada SSDs. While the 128 list of known rogues that claim support for this but actually corrupt 129 data is believed to be complete, be on the lookout for data 130 corruption. The known rogue list is believed to be complete: 131 132 o Crucial MX100, M550 drives with MU01 firmware. 133 o Micron M510 and M550 drives with MU01 firmware. 134 o Micron M500 prior to MU07 firmware 135 o Samsung 830, 840, and 850 all firmwares 136 o FCCT M500 all firmwares 137 138 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware 139 with working NCQ TRIM. For Micron branded drives, see your sales rep for 140 updated firmware. Black listed drives will work correctly because these 141 drives work correctly so long as no NCQ TRIMs are sent to them. Given 142 this list is the same as found in Linux, it's believed there are no 143 other rogues in the market place. All other models from the above 144 vendors work. 145 146 To be safe, if you are at all concerned, you can quirk each of your 147 drives to prevent NCQ from being sent by setting: 148 kern.cam.ada.X.quirks="0x2" 149 in loader.conf. If the drive requires the 4k sector quirk, set the 150 quirks entry to 0x3. 151 15220160330: 153 The FAST_DEPEND build option has been removed and its functionality is 154 now the one true way. The old mkdep(1) style of 'make depend' has 155 been removed. See 20160311 for further details. 156 15720160317: 158 Resource range types have grown from unsigned long to uintmax_t. All 159 drivers, and anything using libdevinfo, need to be recompiled. 160 16120160311: 162 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree 163 builds. It no longer runs mkdep(1) during 'make depend', and the 164 'make depend' stage can safely be skipped now as it is auto ran 165 when building 'make all' and will generate all SRCS and DPSRCS before 166 building anything else. Dependencies are gathered at compile time with 167 -MF flags kept in separate .depend files per object file. Users should 168 run 'make cleandepend' once if using -DNO_CLEAN to clean out older 169 stale .depend files. 170 17120160306: 172 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into 173 kernel modules. Therefore, if you load any kernel modules at boot time, 174 please install the boot loaders after you install the kernel, but before 175 rebooting, e.g.: 176 177 make buildworld 178 make kernel KERNCONF=YOUR_KERNEL_HERE 179 make -C sys/boot install 180 <reboot in single user> 181 182 Then follow the usual steps, described in the General Notes section, 183 below. 184 18520160305: 186 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please 187 see the 20141231 entry below for information about prerequisites and 188 upgrading, if you are not already using clang 3.5.0 or higher. 189 19020160301: 191 The AIO subsystem is now a standard part of the kernel. The 192 VFS_AIO kernel option and aio.ko kernel module have been removed. 193 Due to stability concerns, asynchronous I/O requests are only 194 permitted on sockets and raw disks by default. To enable 195 asynchronous I/O requests on all file types, set the 196 vfs.aio.enable_unsafe sysctl to a non-zero value. 197 19820160226: 199 The ELF object manipulation tool objcopy is now provided by the 200 ELF Tool Chain project rather than by GNU binutils. It should be a 201 drop-in replacement, with the addition of arm64 support. The 202 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set 203 to obtain the GNU version if necessary. 204 20520160129: 206 Building ZFS pools on top of zvols is prohibited by default. That 207 feature has never worked safely; it's always been prone to deadlocks. 208 Using a zvol as the backing store for a VM guest's virtual disk will 209 still work, even if the guest is using ZFS. Legacy behavior can be 210 restored by setting vfs.zfs.vol.recursive=1. 211 21220160119: 213 The NONE and HPN patches has been removed from OpenSSH. They are 214 still available in the security/openssh-portable port. 215 21620160113: 217 With the addition of ypldap(8), a new _ypldap user is now required 218 during installworld. "mergemaster -p" can be used to add the user 219 prior to installworld, as documented in the handbook. 220 22120151216: 222 The tftp loader (pxeboot) now uses the option root-path directive. As a 223 consequence it no longer looks for a pxeboot.4th file on the tftp 224 server. Instead it uses the regular /boot infrastructure as with the 225 other loaders. 226 22720151211: 228 The code to start recording plug and play data into the modules has 229 been committed. While the old tools will properly build a new kernel, 230 a number of warnings about "unknown metadata record 4" will be produced 231 for an older kldxref. To avoid such warnings, make sure to rebuild 232 the kernel toolchain (or world). Make sure that you have r292078 or 233 later when trying to build 292077 or later before rebuilding. 234 23520151207: 236 Debug data files are now built by default with 'make buildworld' and 237 installed with 'make installworld'. This facilitates debugging but 238 requires more disk space both during the build and for the installed 239 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes 240 in src.conf(5). 241 24220151130: 243 r291527 changed the internal interface between the nfsd.ko and 244 nfscommon.ko modules. As such, they must both be upgraded to-gether. 245 __FreeBSD_version has been bumped because of this. 246 24720151108: 248 Add support for unicode collation strings leads to a change of 249 order of files listed by ls(1) for example. To get back to the old 250 behaviour, set LC_COLLATE environment variable to "C". 251 252 Databases administrators will need to reindex their databases given 253 collation results will be different. 254 255 Due to a bug in install(1) it is recommended to remove the ancient 256 locales before running make installworld. 257 258 rm -rf /usr/share/locale/* 259 26020151030: 261 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring 262 libcrypto.so.7 or libssl.so.7 must be recompiled. 263 26420151020: 265 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 266 Kernel modules isp_2400_multi and isp_2500_multi were removed and 267 should be replaced with isp_2400 and isp_2500 modules respectively. 268 26920151017: 270 The build previously allowed using 'make -n' to not recurse into 271 sub-directories while showing what commands would be executed, and 272 'make -n -n' to recursively show commands. Now 'make -n' will recurse 273 and 'make -N' will not. 274 27520151012: 276 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster 277 and etcupdate will now use this file. A custom sendmail.cf is now 278 updated via this mechanism rather than via installworld. If you had 279 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may 280 want to remove the exclusion or change it to "always install". 281 /etc/mail/sendmail.cf is now managed the same way regardless of 282 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using 283 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior. 284 28520151011: 286 Compatibility shims for legacy ATA device names have been removed. 287 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases 288 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.* 289 environment variables, /dev/ad* and /dev/ar* symbolic links. 290 29120151006: 292 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0. 293 Please see the 20141231 entry below for information about prerequisites 294 and upgrading, if you are not already using clang 3.5.0 or higher. 295 29620150924: 297 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/, 298 and renamed from .symbols to .debug. This reduces the size requirements 299 on the boot partition or file system and provides consistency with 300 userland debug files. 301 302 When using the supported kernel installation method the 303 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) 304 as is done with /boot/kernel. 305 306 Developers wishing to maintain the historical behavior of installing 307 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). 308 30920150827: 310 The wireless drivers had undergone changes that remove the 'parent 311 interface' from the ifconfig -l output. The rc.d network scripts 312 used to check presence of a parent interface in the list, so old 313 scripts would fail to start wireless networking. Thus, etcupdate(3) 314 or mergemaster(8) run is required after kernel update, to update your 315 rc.d scripts in /etc. 316 31720150827: 318 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl' 319 These configurations are now automatically interpreted as 320 'scrub fragment reassemble'. 321 32220150817: 323 Kernel-loadable modules for the random(4) device are back. To use 324 them, the kernel must have 325 326 device random 327 options RANDOM_LOADABLE 328 329 kldload(8) can then be used to load random_fortuna.ko 330 or random_yarrow.ko. Please note that due to the indirect 331 function calls that the loadable modules need to provide, 332 the build-in variants will be slightly more efficient. 333 334 The random(4) kernel option RANDOM_DUMMY has been retired due to 335 unpopularity. It was not all that useful anyway. 336 33720150813: 338 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. 339 Control over building the ELF Tool Chain tools is now provided by 340 the WITHOUT_TOOLCHAIN knob. 341 34220150810: 343 The polarity of Pulse Per Second (PPS) capture events with the 344 uart(4) driver has been corrected. Prior to this change the PPS 345 "assert" event corresponded to the trailing edge of a positive PPS 346 pulse and the "clear" event was the leading edge of the next pulse. 347 348 As the width of a PPS pulse in a typical GPS receiver is on the 349 order of 1 millisecond, most users will not notice any significant 350 difference with this change. 351 352 Anyone who has compensated for the historical polarity reversal by 353 configuring a negative offset equal to the pulse width will need to 354 remove that workaround. 355 35620150809: 357 The default group assigned to /dev/dri entries has been changed 358 from 'wheel' to 'video' with the id of '44'. If you want to have 359 access to the dri devices please add yourself to the video group 360 with: 361 362 # pw groupmod video -m $USER 363 36420150806: 365 The menu.rc and loader.rc files will now be replaced during 366 upgrades. Please migrate local changes to menu.rc.local and 367 loader.rc.local instead. 368 36920150805: 370 GNU Binutils versions of addr2line, c++filt, nm, readelf, size, 371 strings and strip have been removed. The src.conf(5) knob 372 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools. 373 37420150728: 375 As ZFS requires more kernel stack pages than is the default on some 376 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 377 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 378 379 Please consider using 'options KSTACK_PAGES=X' where X is greater 380 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 381 38220150706: 383 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0 384 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 385 default, i.e., they will not contain "::". For example, instead 386 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet 387 to have a more specific match, such as different map entries for 388 IPv6:0:0 vs IPv6:0. This change requires that configuration 389 data (including maps, files, classes, custom ruleset, etc.) must 390 use the same format, so make certain such configuration data is 391 upgrading. As a very simple check search for patterns like 392 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old 393 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or 394 the cf option UseCompressedIPv6Addresses. 395 39620150630: 397 The default kernel entropy-processing algorithm is now 398 Fortuna, replacing Yarrow. 399 400 Assuming you have 'device random' in your kernel config 401 file, the configurations allow a kernel option to override 402 this default. You may choose *ONE* of: 403 404 options RANDOM_YARROW # Legacy /dev/random algorithm. 405 options RANDOM_DUMMY # Blocking-only driver. 406 407 If you have neither, you get Fortuna. For most people, 408 read no further, Fortuna will give a /dev/random that works 409 like it always used to, and the difference will be irrelevant. 410 411 If you remove 'device random', you get *NO* kernel-processed 412 entropy at all. This may be acceptable to folks building 413 embedded systems, but has complications. Carry on reading, 414 and it is assumed you know what you need. 415 416 *PLEASE* read random(4) and random(9) if you are in the 417 habit of tweaking kernel configs, and/or if you are a member 418 of the embedded community, wanting specific and not-usual 419 behaviour from your security subsystems. 420 421 NOTE!! If you use RANDOM_DUMMY and/or have no 'device 422 random', you will NOT have a functioning /dev/random, and 423 many cryptographic features will not work, including SSH. 424 You may also find strange behaviour from the random(3) set 425 of library functions, in particular sranddev(3), srandomdev(3) 426 and arc4random(3). The reason for this is that the KERN_ARND 427 sysctl only returns entropy if it thinks it has some to 428 share, and with RANDOM_DUMMY or no 'device random' this 429 will never happen. 430 43120150623: 432 An additional fix for the issue described in the 20150614 sendmail 433 entry below has been been committed in revision 284717. 434 43520150616: 436 FreeBSD's old make (fmake) has been removed from the system. It is 437 available as the devel/fmake port or via pkg install fmake. 438 43920150615: 440 The fix for the issue described in the 20150614 sendmail entry 441 below has been been committed in revision 284436. The work 442 around described in that entry is no longer needed unless the 443 default setting is overridden by a confDH_PARAMETERS configuration 444 setting of '5' or pointing to a 512 bit DH parameter file. 445 44620150614: 447 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 448 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 449 and devel/kyua to version 0.20+ and adjust any calling code to work 450 with Kyuafile and kyua. 451 45220150614: 453 The import of openssl to address the FreeBSD-SA-15:10.openssl 454 security advisory includes a change which rejects handshakes 455 with DH parameters below 768 bits. sendmail releases prior 456 to 8.15.2 (not yet released), defaulted to a 512 bit 457 DH parameter setting for client connections. To work around 458 this interoperability, sendmail can be configured to use a 459 2048 bit DH parameter by: 460 461 1. Edit /etc/mail/`hostname`.mc 462 2. If a setting for confDH_PARAMETERS does not exist or 463 exists and is set to a string beginning with '5', 464 replace it with '2'. 465 3. If a setting for confDH_PARAMETERS exists and is set to 466 a file path, create a new file with: 467 openssl dhparam -out /path/to/file 2048 468 4. Rebuild the .cf file: 469 cd /etc/mail/; make; make install 470 5. Restart sendmail: 471 cd /etc/mail/; make restart 472 473 A sendmail patch is coming, at which time this file will be 474 updated. 475 47620150604: 477 Generation of legacy formatted entries have been disabled by default 478 in pwd_mkdb(8), as all base system consumers of the legacy formatted 479 entries were converted to use the new format by default when the new, 480 machine independent format have been added and supported since FreeBSD 481 5.x. 482 483 Please see the pwd_mkdb(8) manual page for further details. 484 48520150525: 486 Clang and llvm have been upgraded to 3.6.1 release. Please see the 487 20141231 entry below for information about prerequisites and upgrading, 488 if you are not already using 3.5.0 or higher. 489 49020150521: 491 TI platform code switched to using vendor DTS files and this update 492 may break existing systems running on Beaglebone, Beaglebone Black, 493 and Pandaboard: 494 495 - dtb files should be regenerated/reinstalled. Filenames are the 496 same but content is different now 497 - GPIO addressing was changed, now each GPIO bank (32 pins per bank) 498 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old 499 addressing scheme is now pin 25 on /dev/gpioc3. 500 - Pandaboard: /etc/ttys should be updated, serial console device is 501 now /dev/ttyu2, not /dev/ttyu0 502 50320150501: 504 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim. 505 If you need the GNU extension from groff soelim(1), install groff 506 from package: pkg install groff, or via ports: textproc/groff. 507 50820150423: 509 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 510 defined in symlink(7); previously symlinks were silently ignored. 511 51220150415: 513 The const qualifier has been removed from iconv(3) to comply with 514 POSIX. The ports tree is aware of this from r384038 onwards. 515 51620150416: 517 Libraries specified by LIBADD in Makefiles must have a corresponding 518 DPADD_<lib> variable to ensure correct dependencies. This is now 519 enforced in src.libnames.mk. 520 52120150324: 522 From legacy ata(4) driver was removed support for SATA controllers 523 supported by more functional drivers ahci(4), siis(4) and mvs(4). 524 Kernel modules ataahci and ataadaptec were removed completely, 525 replaced by ahci and mvs modules respectively. 526 52720150315: 528 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see 529 the 20141231 entry below for information about prerequisites and 530 upgrading, if you are not already using 3.5.0 or higher. 531 53220150307: 533 The 32-bit PowerPC kernel has been changed to a position-independent 534 executable. This can only be booted with a version of loader(8) 535 newer than January 31, 2015, so make sure to update both world and 536 kernel before rebooting. 537 53820150217: 539 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014), 540 but before r278950, the RNG was not seeded properly. Immediately 541 upgrade the kernel to r278950 or later and regenerate any keys (e.g. 542 ssh keys or openssl keys) that were generated w/ a kernel from that 543 range. This does not affect programs that directly used /dev/random 544 or /dev/urandom. All userland uses of arc4random(3) are affected. 545 54620150210: 547 The autofs(4) ABI was changed in order to restore binary compatibility 548 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work 549 with the new kernel. 550 55120150131: 552 The powerpc64 kernel has been changed to a position-independent 553 executable. This can only be booted with a new version of loader(8), 554 so make sure to update both world and kernel before rebooting. 555 55620150118: 557 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix 558 only release, no new features have been added. Please see the 20141231 559 entry below for information about prerequisites and upgrading, if you 560 are not already using 3.5.0. 561 56220150107: 563 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now 564 taken from the ELF Tool Chain project rather than GNU binutils. They 565 should be drop-in replacements, with the addition of arm64 support. 566 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the 567 binutils tools, if necessary. See 20150805 for updated information. 568 56920150105: 570 The default Unbound configuration now enables remote control 571 using a local socket. Users who have already enabled the 572 local_unbound service should regenerate their configuration 573 by running "service local_unbound setup" as root. 574 57520150102: 576 The GNU texinfo and GNU info pages have been removed. 577 To be able to view GNU info pages please install texinfo from ports. 578 57920141231: 580 Clang, llvm and lldb have been upgraded to 3.5.0 release. 581 582 As of this release, a prerequisite for building clang, llvm and lldb is 583 a C++11 capable compiler and C++11 standard library. This means that to 584 be able to successfully build the cross-tools stage of buildworld, with 585 clang as the bootstrap compiler, your system compiler or cross compiler 586 should either be clang 3.3 or later, or gcc 4.8 or later, and your 587 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or 588 later. 589 590 On any standard FreeBSD 10.x or 11.x installation, where clang and 591 libc++ are on by default (that is, on x86 or arm), this should work out 592 of the box. 593 594 On 9.x installations where clang is enabled by default, e.g. on x86 and 595 powerpc, libc++ will not be enabled by default, so libc++ should be 596 built (with clang) and installed first. If both clang and libc++ are 597 missing, build clang first, then use it to build libc++. 598 599 On 8.x and earlier installations, upgrade to 9.x first, and then follow 600 the instructions for 9.x above. 601 602 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by 603 default, and do not build clang. 604 605 Many embedded systems are resource constrained, and will not be able to 606 build clang in a reasonable time, or in some cases at all. In those 607 cases, cross building bootable systems on amd64 is a workaround. 608 609 This new version of clang introduces a number of new warnings, of which 610 the following are most likely to appear: 611 612 -Wabsolute-value 613 614 This warns in two cases, for both C and C++: 615 * When the code is trying to take the absolute value of an unsigned 616 quantity, which is effectively a no-op, and almost never what was 617 intended. The code should be fixed, if at all possible. If you are 618 sure that the unsigned quantity can be safely cast to signed, without 619 loss of information or undefined behavior, you can add an explicit 620 cast, or disable the warning. 621 622 * When the code is trying to take an absolute value, but the called 623 abs() variant is for the wrong type, which can lead to truncation. 624 If you want to disable the warning instead of fixing the code, please 625 make sure that truncation will not occur, or it might lead to unwanted 626 side-effects. 627 628 -Wtautological-undefined-compare and 629 -Wundefined-bool-conversion 630 631 These warn when C++ code is trying to compare 'this' against NULL, while 632 'this' should never be NULL in well-defined C++ code. However, there is 633 some legacy (pre C++11) code out there, which actively abuses this 634 feature, which was less strictly defined in previous C++ versions. 635 636 Squid and openjdk do this, for example. The warning can be turned off 637 for C++98 and earlier, but compiling the code in C++11 mode might result 638 in unexpected behavior; for example, the parts of the program that are 639 unreachable could be optimized away. 640 64120141222: 642 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER) 643 kernel sources have been removed. The .h files remain, since some 644 utilities include them. This will need to be fixed later. 645 If "mount -t oldnfs ..." is attempted, it will fail. 646 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used, 647 the utilities will report errors. 648 64920141121: 650 The handling of LOCAL_LIB_DIRS has been altered to skip addition of 651 directories to top level SUBDIR variable when their parent 652 directory is included in LOCAL_DIRS. Users with build systems with 653 such hierarchies and without SUBDIR entries in the parent 654 directory Makefiles should add them or add the directories to 655 LOCAL_DIRS. 656 65720141109: 658 faith(4) and faithd(8) have been removed from the base system. Faith 659 has been obsolete for a very long time. 660 66120141104: 662 vt(4), the new console driver, is enabled by default. It brings 663 support for Unicode and double-width characters, as well as 664 support for UEFI and integration with the KMS kernel video 665 drivers. 666 667 You may need to update your console settings in /etc/rc.conf, 668 most probably the keymap. During boot, /etc/rc.d/syscons will 669 indicate what you need to do. 670 671 vt(4) still has issues and lacks some features compared to 672 syscons(4). See the wiki for up-to-date information: 673 https://wiki.freebsd.org/Newcons 674 675 If you want to keep using syscons(4), you can do so by adding 676 the following line to /boot/loader.conf: 677 kern.vty=sc 678 67920141102: 680 pjdfstest has been integrated into kyua as an opt-in test suite. 681 Please see share/doc/pjdfstest/README for more details on how to 682 execute it. 683 68420141009: 685 gperf has been removed from the base system for architectures 686 that use clang. Ports that require gperf will obtain it from the 687 devel/gperf port. 688 68920140923: 690 pjdfstest has been moved from tools/regression/pjdfstest to 691 contrib/pjdfstest . 692 69320140922: 694 At svn r271982, The default linux compat kernel ABI has been adjusted 695 to 2.6.18 in support of the linux-c6 compat ports infrastructure 696 update. If you wish to continue using the linux-f10 compat ports, 697 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 698 encouraged to update their linux-compat packages to linux-c6 during 699 their next update cycle. 700 70120140729: 702 The ofwfb driver, used to provide a graphics console on PowerPC when 703 using vt(4), no longer allows mmap() of all physical memory. This 704 will prevent Xorg on PowerPC with some ATI graphics cards from 705 initializing properly unless x11-servers/xorg-server is updated to 706 1.12.4_8 or newer. 707 70820140723: 709 The xdev targets have been converted to using TARGET and 710 TARGET_ARCH instead of XDEV and XDEV_ARCH. 711 71220140719: 713 The default unbound configuration has been modified to address 714 issues with reverse lookups on networks that use private 715 address ranges. If you use the local_unbound service, run 716 "service local_unbound setup" as root to regenerate your 717 configuration, then "service local_unbound reload" to load the 718 new configuration. 719 72020140709: 721 The GNU texinfo and GNU info pages are not built and installed 722 anymore, WITH_INFO knob has been added to allow to built and install 723 them again. 724 UPDATE: see 20150102 entry on texinfo's removal 725 72620140708: 727 The GNU readline library is now an INTERNALLIB - that is, it is 728 statically linked into consumers (GDB and variants) in the base 729 system, and the shared library is no longer installed. The 730 devel/readline port is available for third party software that 731 requires readline. 732 73320140702: 734 The Itanium architecture (ia64) has been removed from the list of 735 known architectures. This is the first step in the removal of the 736 architecture. 737 73820140701: 739 Commit r268115 has added NFSv4.1 server support, merged from 740 projects/nfsv4.1-server. Since this includes changes to the 741 internal interfaces between the NFS related modules, a full 742 build of the kernel and modules will be necessary. 743 __FreeBSD_version has been bumped. 744 74520140629: 746 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 747 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 748 which differs from the behaviour controlled by this knob.) 749 75020140619: 751 Maximal length of the serial number in CTL was increased from 16 to 752 64 chars, that breaks ABI. All CTL-related tools, such as ctladm 753 and ctld, need to be rebuilt to work with a new kernel. 754 75520140606: 756 The libatf-c and libatf-c++ major versions were downgraded to 0 and 757 1 respectively to match the upstream numbers. They were out of 758 sync because, when they were originally added to FreeBSD, the 759 upstream versions were not respected. These libraries are private 760 and not yet built by default, so renumbering them should be a 761 non-issue. However, unclean source trees will yield broken test 762 programs once the operator executes "make delete-old-libs" after a 763 "make installworld". 764 765 Additionally, the atf-sh binary was made private by moving it into 766 /usr/libexec/. Already-built shell test programs will keep the 767 path to the old binary so they will break after "make delete-old" 768 is run. 769 770 If you are using WITH_TESTS=yes (not the default), wipe the object 771 tree and rebuild from scratch to prevent spurious test failures. 772 This is only needed once: the misnumbered libraries and misplaced 773 binaries have been added to OptionalObsoleteFiles.inc so they will 774 be removed during a clean upgrade. 775 77620140512: 777 Clang and llvm have been upgraded to 3.4.1 release. 778 77920140508: 780 We bogusly installed src.opts.mk in /usr/share/mk. This file should 781 be removed to avoid issues in the future (and has been added to 782 ObsoleteFiles.inc). 783 78420140505: 785 /etc/src.conf now affects only builds of the FreeBSD src tree. In the 786 past, it affected all builds that used the bsd.*.mk files. The old 787 behavior was a bug, but people may have relied upon it. To get this 788 behavior back, you can .include /etc/src.conf from /etc/make.conf 789 (which is still global and isn't changed). This also changes the 790 behavior of incremental builds inside the tree of individual 791 directories. Set MAKESYSPATH to ".../share/mk" to do that. 792 Although this has survived make universe and some upgrade scenarios, 793 other upgrade scenarios may have broken. At least one form of 794 temporary breakage was fixed with MAKESYSPATH settings for buildworld 795 as well... In cases where MAKESYSPATH isn't working with this 796 setting, you'll need to set it to the full path to your tree. 797 798 One side effect of all this cleaning up is that bsd.compiler.mk 799 is no longer implicitly included by bsd.own.mk. If you wish to 800 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk 801 as well. 802 80320140430: 804 The lindev device has been removed since /dev/full has been made a 805 standard device. __FreeBSD_version has been bumped. 806 80720140424: 808 The knob WITHOUT_VI was added to the base system, which controls 809 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1) 810 in order to reorder files share/termcap and didn't build ex(1) as a 811 build tool, so building/installing with WITH_VI is highly advised for 812 build hosts for older releases. 813 814 This issue has been fixed in stable/9 and stable/10 in r277022 and 815 r276991, respectively. 816 81720140418: 818 The YES_HESIOD knob has been removed. It has been obsolete for 819 a decade. Please move to using WITH_HESIOD instead or your builds 820 will silently lack HESIOD. 821 82220140405: 823 The uart(4) driver has been changed with respect to its handling 824 of the low-level console. Previously the uart(4) driver prevented 825 any process from changing the baudrate or the CLOCAL and HUPCL 826 control flags. By removing the restrictions, operators can make 827 changes to the serial console port without having to reboot. 828 However, when getty(8) is started on the serial device that is 829 associated with the low-level console, a misconfigured terminal 830 line in /etc/ttys will now have a real impact. 831 Before upgrading the kernel, make sure that /etc/ttys has the 832 serial console device configured as 3wire without baudrate to 833 preserve the previous behaviour. E.g: 834 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure 835 83620140306: 837 Support for libwrap (TCP wrappers) in rpcbind was disabled by default 838 to improve performance. To re-enable it, if needed, run rpcbind 839 with command line option -W. 840 84120140226: 842 Switched back to the GPL dtc compiler due to updates in the upstream 843 dts files not being supported by the BSDL dtc compiler. You will need 844 to rebuild your kernel toolchain to pick up the new compiler. Core dumps 845 may result while building dtb files during a kernel build if you fail 846 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler. 847 84820140216: 849 Clang and llvm have been upgraded to 3.4 release. 850 85120140216: 852 The nve(4) driver has been removed. Please use the nfe(4) driver 853 for NVIDIA nForce MCP Ethernet adapters instead. 854 85520140212: 856 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 857 This could cause certain C++ applications using shared libraries built 858 against the previous version of libc++ to crash. The incompatibility 859 has now been fixed, but any C++ applications or shared libraries built 860 between r261283 and r261801 should be recompiled. 861 86220140204: 863 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 864 capability mode support. Please note that enabling the feature in 865 kernel is still highly recommended. 866 86720140131: 868 OpenSSH is now built with sandbox support, and will use sandbox as 869 the default privilege separation method. This requires Capsicum 870 capability mode support in kernel. 871 87220140128: 873 The libelf and libdwarf libraries have been updated to newer 874 versions from upstream. Shared library version numbers for 875 these two libraries were bumped. Any ports or binaries 876 requiring these two libraries should be recompiled. 877 __FreeBSD_version is bumped to 1100006. 878 87920140110: 880 If a Makefile in a tests/ directory was auto-generating a Kyuafile 881 instead of providing an explicit one, this would prevent such 882 Makefile from providing its own Kyuafile in the future during 883 NO_CLEAN builds. This has been fixed in the Makefiles but manual 884 intervention is needed to clean an objdir if you use NO_CLEAN: 885 # find /usr/obj -name Kyuafile | xargs rm -f 886 88720131213: 888 The behavior of gss_pseudo_random() for the krb5 mechanism 889 has changed, for applications requesting a longer random string 890 than produced by the underlying enctype's pseudo-random() function. 891 In particular, the random string produced from a session key of 892 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 893 be different at the 17th octet and later, after this change. 894 The counter used in the PRF+ construction is now encoded as a 895 big-endian integer in accordance with RFC 4402. 896 __FreeBSD_version is bumped to 1100004. 897 89820131108: 899 The WITHOUT_ATF build knob has been removed and its functionality 900 has been subsumed into the more generic WITHOUT_TESTS. If you were 901 using the former to disable the build of the ATF libraries, you 902 should change your settings to use the latter. 903 90420131025: 905 The default version of mtree is nmtree which is obtained from 906 NetBSD. The output is generally the same, but may vary 907 slightly. If you found you need identical output adding 908 "-F freebsd9" to the command line should do the trick. For the 909 time being, the old mtree is available as fmtree. 910 91120131014: 912 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 913 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 914 1.1.4_8 and verify bsdyml not linked in, before running "make 915 delete-old-libs": 916 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 917 or 918 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 919 92020131010: 921 The stable/10 branch has been created in subversion from head 922 revision r256279. 923 92420131010: 925 The rc.d/jail script has been updated to support jail(8) 926 configuration file. The "jail_<jname>_*" rc.conf(5) variables 927 for per-jail configuration are automatically converted to 928 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 929 This is transparently backward compatible. See below about some 930 incompatibilities and rc.conf(5) manual page for more details. 931 932 These variables are now deprecated in favor of jail(8) configuration 933 file. One can use "rc.d/jail config <jname>" command to generate 934 a jail(8) configuration file in /var/run/jail.<jname>.conf without 935 running the jail(8) utility. The default pathname of the 936 configuration file is /etc/jail.conf and can be specified by 937 using $jail_conf or $jail_<jname>_conf variables. 938 939 Please note that jail_devfs_ruleset accepts an integer at 940 this moment. Please consider to rewrite the ruleset name 941 with an integer. 942 94320130930: 944 BIND has been removed from the base system. If all you need 945 is a local resolver, simply enable and start the local_unbound 946 service instead. Otherwise, several versions of BIND are 947 available in the ports tree. The dns/bind99 port is one example. 948 949 With this change, nslookup(1) and dig(1) are no longer in the base 950 system. Users should instead use host(1) and drill(1) which are 951 in the base system. Alternatively, nslookup and dig can 952 be obtained by installing the dns/bind-tools port. 953 95420130916: 955 With the addition of unbound(8), a new unbound user is now 956 required during installworld. "mergemaster -p" can be used to 957 add the user prior to installworld, as documented in the handbook. 958 95920130911: 960 OpenSSH is now built with DNSSEC support, and will by default 961 silently trust signed SSHFP records. This can be controlled with 962 the VerifyHostKeyDNS client configuration setting. DNSSEC support 963 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 964 96520130906: 966 The GNU Compiler Collection and C++ standard library (libstdc++) 967 are no longer built by default on platforms where clang is the system 968 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 969 options in src.conf. 970 97120130905: 972 The PROCDESC kernel option is now part of the GENERIC kernel 973 configuration and is required for the rwhod(8) to work. 974 If you are using custom kernel configuration, you should include 975 'options PROCDESC'. 976 97720130905: 978 The API and ABI related to the Capsicum framework was modified 979 in backward incompatible way. The userland libraries and programs 980 have to be recompiled to work with the new kernel. This includes the 981 following libraries and programs, but the whole buildworld is 982 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 983 kdump, procstat, rwho, rwhod, uniq. 984 98520130903: 986 AES-NI intrinsic support has been added to gcc. The AES-NI module 987 has been updated to use this support. A new gcc is required to build 988 the aesni module on both i386 and amd64. 989 99020130821: 991 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 992 Thus "device padlock_rng" and "device rdrand_rng" should be 993 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 994 99520130813: 996 WITH_ICONV has been split into two feature sets. WITH_ICONV now 997 enables just the iconv* functionality and is now on by default. 998 WITH_LIBICONV_COMPAT enables the libiconv api and link time 999 compatibility. Set WITHOUT_ICONV to build the old way. 1000 If you have been using WITH_ICONV before, you will very likely 1001 need to turn on WITH_LIBICONV_COMPAT. 1002 100320130806: 1004 INVARIANTS option now enables DEBUG for code with OpenSolaris and 1005 Illumos origin, including ZFS. If you have INVARIANTS in your 1006 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 1007 explicitly. 1008 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 1009 locks if WITNESS option was set. Because that generated a lot of 1010 witness(9) reports and all of them were believed to be false 1011 positives, this is no longer done. New option OPENSOLARIS_WITNESS 1012 can be used to achieve the previous behavior. 1013 101420130806: 1015 Timer values in IPv6 data structures now use time_uptime instead 1016 of time_second. Although this is not a user-visible functional 1017 change, userland utilities which directly use them---ndp(8), 1018 rtadvd(8), and rtsold(8) in the base system---need to be updated 1019 to r253970 or later. 1020 102120130802: 1022 find -delete can now delete the pathnames given as arguments, 1023 instead of only files found below them or if the pathname did 1024 not contain any slashes. Formerly, the following error message 1025 would result: 1026 1027 find: -delete: <path>: relative path potentially not safe 1028 1029 Deleting the pathnames given as arguments can be prevented 1030 without error messages using -mindepth 1 or by changing 1031 directory and passing "." as argument to find. This works in the 1032 old as well as the new version of find. 1033 103420130726: 1035 Behavior of devfs rules path matching has been changed. 1036 Pattern is now always matched against fully qualified devfs 1037 path and slash characters must be explicitly matched by 1038 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 1039 subdirectories must be reviewed. 1040 104120130716: 1042 The default ARM ABI has changed to the ARM EABI. The old ABI is 1043 incompatible with the ARM EABI and all programs and modules will 1044 need to be rebuilt to work with a new kernel. 1045 1046 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 1047 1048 NOTE: Support for the old ABI will be removed in the future and 1049 users are advised to upgrade. 1050 105120130709: 1052 pkg_install has been disconnected from the build if you really need it 1053 you should add WITH_PKGTOOLS in your src.conf(5). 1054 105520130709: 1056 Most of network statistics structures were changed to be able 1057 keep 64-bits counters. Thus all tools, that work with networking 1058 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 1059 106020130618: 1061 Fix a bug that allowed a tracing process (e.g. gdb) to write 1062 to a memory-mapped file in the traced process's address space 1063 even if neither the traced process nor the tracing process had 1064 write access to that file. 1065 106620130615: 1067 CVS has been removed from the base system. An exact copy 1068 of the code is available from the devel/cvs port. 1069 107020130613: 1071 Some people report the following error after the switch to bmake: 1072 1073 make: illegal option -- J 1074 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 1075 ... 1076 *** [buildworld] Error code 2 1077 1078 this likely due to an old instance of make in 1079 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 1080 which src/Makefile will use that blindly, if it exists, so if 1081 you see the above error: 1082 1083 rm -rf `make -V MAKEPATH` 1084 1085 should resolve it. 1086 108720130516: 1088 Use bmake by default. 1089 Whereas before one could choose to build with bmake via 1090 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 1091 make. The goal is to remove these knobs for 10-RELEASE. 1092 1093 It is worth noting that bmake (like gmake) treats the command 1094 line as the unit of failure, rather than statements within the 1095 command line. Thus '(cd some/where && dosomething)' is safer 1096 than 'cd some/where; dosomething'. The '()' allows consistent 1097 behavior in parallel build. 1098 109920130429: 1100 Fix a bug that allows NFS clients to issue READDIR on files. 1101 110220130426: 1103 The WITHOUT_IDEA option has been removed because 1104 the IDEA patent expired. 1105 110620130426: 1107 The sysctl which controls TRIM support under ZFS has been renamed 1108 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 1109 enabled by default. 1110 111120130425: 1112 The mergemaster command now uses the default MAKEOBJDIRPREFIX 1113 rather than creating it's own in the temporary directory in 1114 order allow access to bootstrapped versions of tools such as 1115 install and mtree. When upgrading from version of FreeBSD where 1116 the install command does not support -l, you will need to 1117 install a new mergemaster command if mergemaster -p is required. 1118 This can be accomplished with the command (cd src/usr.sbin/mergemaster 1119 && make install). 1120 112120130404: 1122 Legacy ATA stack, disabled and replaced by new CAM-based one since 1123 FreeBSD 9.0, completely removed from the sources. Kernel modules 1124 atadisk and atapi*, user-level tools atacontrol and burncd are 1125 removed. Kernel option `options ATA_CAM` is now permanently enabled 1126 and removed. 1127 112820130319: 1129 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 1130 and socketpair(2). Software, in particular Kerberos, may 1131 automatically detect and use these during building. The resulting 1132 binaries will not work on older kernels. 1133 113420130308: 1135 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 1136 information, see the respective 20130304 entry). 1137 113820130304: 1139 Recent commits to callout(9) changed the size of struct callout, 1140 so the KBI is probably heavily disturbed. Also, some functions 1141 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 1142 by macros. Every kernel module using it won't load, so rebuild 1143 is requested. 1144 1145 The ctl device has been re-enabled in GENERIC for i386 and amd64, 1146 but does not initialize by default (because of the new CTL_DISABLE 1147 option) to save memory. To re-enable it, remove the CTL_DISABLE 1148 option from the kernel config file or set kern.cam.ctl.disable=0 1149 in /boot/loader.conf. 1150 115120130301: 1152 The ctl device has been disabled in GENERIC for i386 and amd64. 1153 This was done due to the extra memory being allocated at system 1154 initialisation time by the ctl driver which was only used if 1155 a CAM target device was created. This makes a FreeBSD system 1156 unusable on 128MB or less of RAM. 1157 115820130208: 1159 A new compression method (lz4) has been merged to -HEAD. Please 1160 refer to zpool-features(7) for more information. 1161 1162 Please refer to the "ZFS notes" section of this file for information 1163 on upgrading boot ZFS pools. 1164 116520130129: 1166 A BSD-licensed patch(1) variant has been added and is installed 1167 as bsdpatch, being the GNU version the default patch. 1168 To inverse the logic and use the BSD-licensed one as default, 1169 while having the GNU version installed as gnupatch, rebuild 1170 and install world with the WITH_BSD_PATCH knob set. 1171 117220130121: 1173 Due to the use of the new -l option to install(1) during build 1174 and install, you must take care not to directly set the INSTALL 1175 make variable in your /etc/make.conf, /etc/src.conf, or on the 1176 command line. If you wish to use the -C flag for all installs 1177 you may be able to add INSTALL+=-C to /etc/make.conf or 1178 /etc/src.conf. 1179 118020130118: 1181 The install(1) option -M has changed meaning and now takes an 1182 argument that is a file or path to append logs to. In the 1183 unlikely event that -M was the last option on the command line 1184 and the command line contained at least two files and a target 1185 directory the first file will have logs appended to it. The -M 1186 option served little practical purpose in the last decade so its 1187 use is expected to be extremely rare. 1188 118920121223: 1190 After switching to Clang as the default compiler some users of ZFS 1191 on i386 systems started to experience stack overflow kernel panics. 1192 Please consider using 'options KSTACK_PAGES=4' in such configurations. 1193 119420121222: 1195 GEOM_LABEL now mangles label names read from file system metadata. 1196 Mangling affect labels containing spaces, non-printable characters, 1197 '%' or '"'. Device names in /etc/fstab and other places may need to 1198 be updated. 1199 120020121217: 1201 By default, only the 10 most recent kernel dumps will be saved. To 1202 restore the previous behaviour (no limit on the number of kernel dumps 1203 stored in the dump directory) add the following line to /etc/rc.conf: 1204 1205 savecore_flags="" 1206 120720121201: 1208 With the addition of auditdistd(8), a new auditdistd user is now 1209 required during installworld. "mergemaster -p" can be used to 1210 add the user prior to installworld, as documented in the handbook. 1211 121220121117: 1213 The sin6_scope_id member variable in struct sockaddr_in6 is now 1214 filled by the kernel before passing the structure to the userland via 1215 sysctl or routing socket. This means the KAME-specific embedded scope 1216 id in sin6_addr.s6_addr[2] is always cleared in userland application. 1217 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 1218 __FreeBSD_version is bumped to 1000025. 1219 122020121105: 1221 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 1222 This means that the world and kernel will be compiled with clang 1223 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 1224 and /usr/bin/cpp. To disable this behavior and revert to building 1225 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 1226 of current may need to bootstrap WITHOUT_CLANG first if the clang 1227 build fails (its compatibility window doesn't extend to the 9 stable 1228 branch point). 1229 123020121102: 1231 The IPFIREWALL_FORWARD kernel option has been removed. Its 1232 functionality now turned on by default. 1233 123420121023: 1235 The ZERO_COPY_SOCKET kernel option has been removed and 1236 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 1237 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 1238 mechanism which is not safe and may result in kernel crashes. 1239 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 1240 driver supports disposeable external page sized mbuf storage. 1241 Proper replacements for both zero-copy mechanisms are under 1242 consideration and will eventually lead to complete removal 1243 of the two kernel options. 1244 124520121023: 1246 The IPv4 network stack has been converted to network byte 1247 order. The following modules need to be recompiled together 1248 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 1249 pf(4), ipfw(4), ng_ipfw(4), stf(4). 1250 125120121022: 1252 Support for non-MPSAFE filesystems was removed from VFS. The 1253 VFS_VERSION was bumped, all filesystem modules shall be 1254 recompiled. 1255 125620121018: 1257 All the non-MPSAFE filesystems have been disconnected from 1258 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 1259 portalfs, smbfs, xfs. 1260 126120121016: 1262 The interface cloning API and ABI has changed. The following 1263 modules need to be recompiled together with kernel: 1264 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 1265 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 1266 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 1267 126820121015: 1269 The sdhci driver was split in two parts: sdhci (generic SD Host 1270 Controller logic) and sdhci_pci (actual hardware driver). 1271 No kernel config modifications are required, but if you 1272 load sdhc as a module you must switch to sdhci_pci instead. 1273 127420121014: 1275 Import the FUSE kernel and userland support into base system. 1276 127720121013: 1278 The GNU sort(1) program has been removed since the BSD-licensed 1279 sort(1) has been the default for quite some time and no serious 1280 problems have been reported. The corresponding WITH_GNU_SORT 1281 knob has also gone. 1282 128320121006: 1284 The pfil(9) API/ABI for AF_INET family has been changed. Packet 1285 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 1286 with new kernel. 1287 128820121001: 1289 The net80211(4) ABI has been changed to allow for improved driver 1290 PS-POLL and power-save support. All wireless drivers need to be 1291 recompiled to work with the new kernel. 1292 129320120913: 1294 The random(4) support for the VIA hardware random number 1295 generator (`PADLOCK') is no longer enabled unconditionally. 1296 Add the padlock_rng device in the custom kernel config if 1297 needed. The GENERIC kernels on i386 and amd64 do include the 1298 device, so the change only affects the custom kernel 1299 configurations. 1300 130120120908: 1302 The pf(4) packet filter ABI has been changed. pfctl(8) and 1303 snmp_pf module need to be recompiled to work with new kernel. 1304 130520120828: 1306 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 1307 to -HEAD. Pools that have empty_bpobj in active state can not be 1308 imported read-write with ZFS implementations that do not support 1309 this feature. For more information read the zpool-features(5) 1310 manual page. 1311 131220120727: 1313 The sparc64 ZFS loader has been changed to no longer try to auto- 1314 detect ZFS providers based on diskN aliases but now requires these 1315 to be explicitly listed in the OFW boot-device environment variable. 1316 131720120712: 1318 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 1319 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 1320 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 1321 132220120712: 1323 The following sysctls and tunables have been renamed for consistency 1324 with other variables: 1325 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 1326 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 1327 132820120628: 1329 The sort utility has been replaced with BSD sort. For now, GNU sort 1330 is also available as "gnusort" or the default can be set back to 1331 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 1332 installed as "bsdsort". 1333 133420120611: 1335 A new version of ZFS (pool version 5000) has been merged to -HEAD. 1336 Starting with this version the old system of ZFS pool versioning 1337 is superseded by "feature flags". This concept enables forward 1338 compatibility against certain future changes in functionality of ZFS 1339 pools. The first read-only compatible "feature flag" for ZFS pools 1340 is named "com.delphix:async_destroy". For more information 1341 read the new zpool-features(5) manual page. 1342 Please refer to the "ZFS notes" section of this file for information 1343 on upgrading boot ZFS pools. 1344 134520120417: 1346 The malloc(3) implementation embedded in libc now uses sources imported 1347 as contrib/jemalloc. The most disruptive API change is to 1348 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 1349 delete it prior to installworld, and optionally re-create it using the 1350 new format after rebooting. See malloc.conf(5) for details 1351 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 1352 NAMESPACE section). 1353 135420120328: 1355 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 1356 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 1357 now spelled mips. This is to aid compatibility with third-party 1358 software that expects this naming scheme in uname(3). Little-endian 1359 settings are unchanged. If you are updating a big-endian mips64 machine 1360 from before this change, you may need to set MACHINE_ARCH=mips64 in 1361 your environment before the new build system will recognize your machine. 1362 136320120306: 1364 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 1365 platforms. 1366 136720120229: 1368 Now unix domain sockets behave "as expected" on nullfs(5). Previously 1369 nullfs(5) did not pass through all behaviours to the underlying layer, 1370 as a result if we bound to a socket on the lower layer we could connect 1371 only to the lower path; if we bound to the upper layer we could connect 1372 only to the upper path. The new behavior is one can connect to both the 1373 lower and the upper paths regardless what layer path one binds to. 1374 137520120211: 1376 The getifaddrs upgrade path broken with 20111215 has been restored. 1377 If you have upgraded in between 20111215 and 20120209 you need to 1378 recompile libc again with your kernel. You still need to recompile 1379 world to be able to configure CARP but this restriction already 1380 comes from 20111215. 1381 138220120114: 1383 The set_rcvar() function has been removed from /etc/rc.subr. All 1384 base and ports rc.d scripts have been updated, so if you have a 1385 port installed with a script in /usr/local/etc/rc.d you can either 1386 hand-edit the rcvar= line, or reinstall the port. 1387 1388 An easy way to handle the mass-update of /etc/rc.d: 1389 rm /etc/rc.d/* && mergemaster -i 1390 139120120109: 1392 panic(9) now stops other CPUs in the SMP systems, disables interrupts 1393 on the current CPU and prevents other threads from running. 1394 This behavior can be reverted using the kern.stop_scheduler_on_panic 1395 tunable/sysctl. 1396 The new behavior can be incompatible with kern.sync_on_panic. 1397 139820111215: 1399 The carp(4) facility has been changed significantly. Configuration 1400 of the CARP protocol via ifconfig(8) has changed, as well as format 1401 of CARP events submitted to devd(8) has changed. See manual pages 1402 for more information. The arpbalance feature of carp(4) is currently 1403 not supported anymore. 1404 1405 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 1406 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 1407 need to be recompiled. 1408 140920111122: 1410 The acpi_wmi(4) status device /dev/wmistat has been renamed to 1411 /dev/wmistat0. 1412 141320111108: 1414 The option VFS_ALLOW_NONMPSAFE option has been added in order to 1415 explicitely support non-MPSAFE filesystems. 1416 It is on by default for all supported platform at this present 1417 time. 1418 141920111101: 1420 The broken amd(4) driver has been replaced with esp(4) in the amd64, 1421 i386 and pc98 GENERIC kernel configuration files. 1422 142320110930: 1424 sysinstall has been removed 1425 142620110923: 1427 The stable/9 branch created in subversion. This corresponds to the 1428 RELENG_9 branch in CVS. 1429 1430COMMON ITEMS: 1431 1432 General Notes 1433 ------------- 1434 Avoid using make -j when upgrading. While generally safe, there are 1435 sometimes problems using -j to upgrade. If your upgrade fails with 1436 -j, please try again without -j. From time to time in the past there 1437 have been problems using -j with buildworld and/or installworld. This 1438 is especially true when upgrading between "distant" versions (eg one 1439 that cross a major release boundary or several minor releases, or when 1440 several months have passed on the -current branch). 1441 1442 Sometimes, obscure build problems are the result of environment 1443 poisoning. This can happen because the make utility reads its 1444 environment when searching for values for global variables. To run 1445 your build attempts in an "environmental clean room", prefix all make 1446 commands with 'env -i '. See the env(1) manual page for more details. 1447 1448 When upgrading from one major version to another it is generally best 1449 to upgrade to the latest code in the currently installed branch first, 1450 then do an upgrade to the new branch. This is the best-tested upgrade 1451 path, and has the highest probability of being successful. Please try 1452 this approach before reporting problems with a major version upgrade. 1453 1454 When upgrading a live system, having a root shell around before 1455 installing anything can help undo problems. Not having a root shell 1456 around can lead to problems if pam has changed too much from your 1457 starting point to allow continued authentication after the upgrade. 1458 1459 This file should be read as a log of events. When a later event changes 1460 information of a prior event, the prior event should not be deleted. 1461 Instead, a pointer to the entry with the new information should be 1462 placed in the old entry. Readers of this file should also sanity check 1463 older entries before relying on them blindly. Authors of new entries 1464 should write them with this in mind. 1465 1466 ZFS notes 1467 --------- 1468 When upgrading the boot ZFS pool to a new version, always follow 1469 these two steps: 1470 1471 1.) recompile and reinstall the ZFS boot loader and boot block 1472 (this is part of "make buildworld" and "make installworld") 1473 1474 2.) update the ZFS boot block on your boot drive 1475 1476 The following example updates the ZFS boot block on the first 1477 partition (freebsd-boot) of a GPT partitioned drive ada0: 1478 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" 1479 1480 Non-boot pools do not need these updates. 1481 1482 To build a kernel 1483 ----------------- 1484 If you are updating from a prior version of FreeBSD (even one just 1485 a few days old), you should follow this procedure. It is the most 1486 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1487 1488 make kernel-toolchain 1489 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1490 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1491 1492 To test a kernel once 1493 --------------------- 1494 If you just want to boot a kernel once (because you are not sure 1495 if it works, or if you want to boot a known bad kernel to provide 1496 debugging information) run 1497 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1498 nextboot -k testkernel 1499 1500 To just build a kernel when you know that it won't mess you up 1501 -------------------------------------------------------------- 1502 This assumes you are already running a CURRENT system. Replace 1503 ${arch} with the architecture of your machine (e.g. "i386", 1504 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1505 1506 cd src/sys/${arch}/conf 1507 config KERNEL_NAME_HERE 1508 cd ../compile/KERNEL_NAME_HERE 1509 make depend 1510 make 1511 make install 1512 1513 If this fails, go to the "To build a kernel" section. 1514 1515 To rebuild everything and install it on the current system. 1516 ----------------------------------------------------------- 1517 # Note: sometimes if you are running current you gotta do more than 1518 # is listed here if you are upgrading from a really old current. 1519 1520 <make sure you have good level 0 dumps> 1521 make buildworld 1522 make kernel KERNCONF=YOUR_KERNEL_HERE 1523 [1] 1524 <reboot in single user> [3] 1525 mergemaster -Fp [5] 1526 make installworld 1527 mergemaster -Fi [4] 1528 make delete-old [6] 1529 <reboot> 1530 1531 To cross-install current onto a separate partition 1532 -------------------------------------------------- 1533 # In this approach we use a separate partition to hold 1534 # current's root, 'usr', and 'var' directories. A partition 1535 # holding "/", "/usr" and "/var" should be about 2GB in 1536 # size. 1537 1538 <make sure you have good level 0 dumps> 1539 <boot into -stable> 1540 make buildworld 1541 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1542 <maybe newfs current's root partition> 1543 <mount current's root partition on directory ${CURRENT_ROOT}> 1544 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1545 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1546 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1547 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1548 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1549 <reboot into current> 1550 <do a "native" rebuild/install as described in the previous section> 1551 <maybe install compatibility libraries from ports/misc/compat*> 1552 <reboot> 1553 1554 1555 To upgrade in-place from stable to current 1556 ---------------------------------------------- 1557 <make sure you have good level 0 dumps> 1558 make buildworld [9] 1559 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1560 [1] 1561 <reboot in single user> [3] 1562 mergemaster -Fp [5] 1563 make installworld 1564 mergemaster -Fi [4] 1565 make delete-old [6] 1566 <reboot> 1567 1568 Make sure that you've read the UPDATING file to understand the 1569 tweaks to various things you need. At this point in the life 1570 cycle of current, things change often and you are on your own 1571 to cope. The defaults can also change, so please read ALL of 1572 the UPDATING entries. 1573 1574 Also, if you are tracking -current, you must be subscribed to 1575 freebsd-current@freebsd.org. Make sure that before you update 1576 your sources that you have read and understood all the recent 1577 messages there. If in doubt, please track -stable which has 1578 much fewer pitfalls. 1579 1580 [1] If you have third party modules, such as vmware, you 1581 should disable them at this point so they don't crash your 1582 system on reboot. 1583 1584 [3] From the bootblocks, boot -s, and then do 1585 fsck -p 1586 mount -u / 1587 mount -a 1588 cd src 1589 adjkerntz -i # if CMOS is wall time 1590 Also, when doing a major release upgrade, it is required that 1591 you boot into single user mode to do the installworld. 1592 1593 [4] Note: This step is non-optional. Failure to do this step 1594 can result in a significant reduction in the functionality of the 1595 system. Attempting to do it by hand is not recommended and those 1596 that pursue this avenue should read this file carefully, as well 1597 as the archives of freebsd-current and freebsd-hackers mailing lists 1598 for potential gotchas. The -U option is also useful to consider. 1599 See mergemaster(8) for more information. 1600 1601 [5] Usually this step is a noop. However, from time to time 1602 you may need to do this if you get unknown user in the following 1603 step. It never hurts to do it all the time. You may need to 1604 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1605 install) after the buildworld before this step if you last updated 1606 from current before 20130425 or from -stable before 20130430. 1607 1608 [6] This only deletes old files and directories. Old libraries 1609 can be deleted by "make delete-old-libs", but you have to make 1610 sure that no program is using those libraries anymore. 1611 1612 [8] In order to have a kernel that can run the 4.x binaries needed to 1613 do an installworld, you must include the COMPAT_FREEBSD4 option in 1614 your kernel. Failure to do so may leave you with a system that is 1615 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1616 required to run the 5.x binaries on more recent kernels. And so on 1617 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1618 1619 Make sure that you merge any new devices from GENERIC since the 1620 last time you updated your kernel config file. 1621 1622 [9] When checking out sources, you must include the -P flag to have 1623 cvs prune empty directories. 1624 1625 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1626 "?=" instead of the "=" assignment operator, so that buildworld can 1627 override the CPUTYPE if it needs to. 1628 1629 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1630 not on the command line, or in /etc/make.conf. buildworld will 1631 warn if it is improperly defined. 1632FORMAT: 1633 1634This file contains a list, in reverse chronological order, of major 1635breakages in tracking -current. It is not guaranteed to be a complete 1636list of such breakages, and only contains entries since September 23, 2011. 1637If you need to see UPDATING entries from before that date, you will need 1638to fetch an UPDATING file from an older FreeBSD release. 1639 1640Copyright information: 1641 1642Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1643 1644Redistribution, publication, translation and use, with or without 1645modification, in full or in part, in any form or format of this 1646document are permitted without further permission from the author. 1647 1648THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1649IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1650WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1651DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1652INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1653(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1654SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1655HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1656STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1657IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1658POSSIBILITY OF SUCH DAMAGE. 1659 1660Contact Warner Losh if you have any questions about your use of 1661this document. 1662 1663$FreeBSD$ 1664