1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh 4<imp@village.org>. See end of file for further details. For commonly 5done items, please see the COMMON ITEMS: section later in the file. 6 7Items affecting the ports and packages system can be found in 8/usr/ports/UPDATING. Please read that file before running 9portupgrade. 10 11NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 12 FreeBSD 8.x has many debugging features turned on, in 13 both the kernel and userland. These features attempt to detect 14 incorrect use of system primitives, and encourage loud failure 15 through extra sanity checking and fail stop semantics. They 16 also substantially impact system performance. If you want to 17 do performance measurement, benchmarking, and optimization, 18 you'll want to turn them off. This includes various WITNESS- 19 related kernel options, INVARIANTS, malloc debugging flags 20 in userland, and various verbose features in the kernel. Many 21 developers choose to disable these features on build machines 22 to maximize performance. (To disable malloc debugging, run 23 ln -s aj /etc/malloc.conf.) 24 2520080312: 26 Support for KSE threading has been removed from the kernel. To 27 run legacy applications linked against KSE libmap.conf may 28 be used. The following libmap.conf may be used to ensure 29 compatibility with any prior release: 30 31 libpthread.so.1 libthr.so.1 32 libpthread.so.2 libthr.so.2 33 libkse.so.3 libthr.so.3 34 3520080301: 36 The layout of struct vmspace has changed. This affects libkvm 37 and any executables that link against libkvm and use the 38 kvm_getprocs() function. In particular, but not exclusively, 39 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 40 The effects are minimal, but it's advisable to upgrade world 41 nonetheless. 42 4320080229: 44 The latest em driver no longer has support in it for the 45 82575 adapter, this is now moved to the igb driver. The 46 split was done to make new features that are incompatible 47 with older hardware easier to do. 48 4920080220: 50 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 51 likewise the kernel option is now GEOM_LINUX_LVM. 52 5320080211: 54 The default NFS mount mode has changed from UDP to TCP for 55 increased reliability. If you rely on (insecurely) NFS 56 mounting across a firewall you may need to update your 57 firewall rules. 58 5920080208: 60 Belatedly note the addition of m_collapse for compacting 61 mbuf chains. 62 6320080126: 64 The fts(3) structures have been changed to use adequate 65 integer types for their members and so to be able to cope 66 with huge file trees. The old fts(3) ABI is preserved 67 through symbol versioning in libc, so third-party binaries 68 using fts(3) should still work, although they will not take 69 advantage of the extended types. At the same time, some 70 third-party software might fail to build after this change 71 due to unportable assumptions made in its source code about 72 fts(3) structure members. Such software should be fixed 73 by its vendor or, in the worst case, in the ports tree. 74 FreeBSD_version 800015 marks this change for the unlikely 75 case that a portable fix is impossible. 76 7720080123: 78 To upgrade to -current after this date, you must be running 79 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 80 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 81 8220071128: 83 The ADAPTIVE_GIANT kernel option has been retired because its 84 functionality is the default now. 85 8620071118: 87 The AT keyboard emulation of sunkbd(4) has been turned on 88 by default. In order to make the special symbols of the Sun 89 keyboards driven by sunkbd(4) work under X these now have 90 to be configured the same way as Sun USB keyboards driven 91 by ukbd(4) (which also does AT keyboard emulation), f.e.: 92 93 Option "XkbLayout" "us" 94 Option "XkbRules" "xorg" 95 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 96 9720071024: 98 It has been decided that it is desirable to provide ABI 99 backwards compatibility to the FreeBSD 4/5/6 versions of the 100 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 101 broken with the introduction of PCI domain support (see the 102 20070930 entry). Unfortunately, this required the ABI of 103 PCIOCGETCONF to be broken again in order to be able to 104 provide backwards compatibility to the old version of that 105 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 106 again. As for prominent ports this affects neither pciutils 107 nor xorg-server this time, the hal port needs to be rebuilt 108 however. 109 11020071020: 111 The misnamed kthread_create() and friends have been renamed 112 to kproc_create() etc. Many of the callers already 113 used kproc_start().. 114 I will return kthread_create() and friends in a while 115 with implementations that actually create threads, not procs. 116 Renaming corresponds with version 800002. 117 11820071010: 119 RELENG_7 branched. 120 12120071009: 122 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 123 WITHOUT_LIBTHR are set. 124 12520070930: 126 The PCI code has been made aware of PCI domains. This means that 127 the location strings as used by pciconf(8) etc are now in the 128 following format: pci<domain>:<bus>:<device>[:<function>]. It 129 also means that consumers of <sys/pciio.h> potentially need to 130 be recompiled; this includes the hal and xorg-server ports. 131 13220070928: 133 The caching daemon (cached) was renamed to nscd. nscd.conf 134 configuration file should be used instead of cached.conf and 135 nscd_enable, nscd_pidfile and nscd_flags options should be used 136 instead of cached_enable, cached_pidfile and cached_flags in 137 rc.conf. 138 13920070921: 140 The getfacl(1) utility now prints owning user and group name 141 instead of owning uid and gid in the three line comment header. 142 This is the same behavior as getfacl(1) on Solaris and Linux. 143 14420070704: 145 The new IPsec code is now compiled in using the IPSEC option. The 146 IPSEC option now requires "device crypto" be defined in your kernel 147 configuration. The FAST_IPSEC kernel option is now deprecated. 148 14920070702: 150 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 151 note the changed syntax - keep state is now on by default. Also 152 note the fact that ftp-proxy(8) has been changed from bottom up and 153 has been moved from libexec to usr/sbin. Changes in the ALTQ 154 handling also affect users of IPFW's ALTQ capabilities. 155 15620070701: 157 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 158 only IPsec supported by FreeBSD. The new IPsec stack 159 supports both IPv4 and IPv6. The kernel option will change 160 after the code changes have settled in. For now the kernel 161 option IPSEC is deprecated and FAST_IPSEC is the only option, that 162 will change after some settling time. 163 16420070701: 165 The wicontrol(8) utility has been removed from the base system. wi(4) 166 cards should be configured using ifconfig(8), see the man page for more 167 information. 168 16920070612: 170 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 171 instead of the nve(4) driver. Please update your configuration 172 accordingly. 173 17420070612: 175 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 176 database if it is missing or older than the aliases file. If 177 desired, set the new rc.conf option sendmail_rebuild_aliases 178 to "YES" to restore that functionality. 179 18020070612: 181 The IPv4 multicast socket code has been considerably modified, and 182 moved to the file sys/netinet/in_mcast.c. Initial support for the 183 RFC 3678 Source-Specific Multicast Socket API has been added to 184 the IPv4 network stack. 185 186 Strict multicast and broadcast reception is now the default for 187 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 188 has now been removed. 189 190 The RFC 1724 hack for interface selection has been removed; the use 191 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 192 been added to replace it. Consumers such as routed will soon be 193 updated to reflect this. 194 195 These changes affect users who are running routed(8) or rdisc(8) 196 from the FreeBSD base system on point-to-point or unnumbered 197 interfaces. 198 19920070610: 200 The net80211 layer has changed significantly and all wireless 201 drivers that depend on it need to be recompiled. Further these 202 changes require that any program that interacts with the wireless 203 support in the kernel be recompiled; this includes: ifconfig, 204 wpa_supplicant, hostapd, and wlanstats. Users must also, for 205 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 206 if they use modules for wireless support. These modules implement 207 scanning support for station and ap modes, respectively. Failure 208 to load the appropriate module before marking a wireless interface 209 up will result in a message to the console and the device not 210 operating properly. 211 21220070610: 213 The pam_nologin(8) module ceases to provide an authentication 214 function and starts providing an account management function. 215 Consequent changes to /etc/pam.d should be brought in using 216 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 217 need manual editing as follows. Locate this line (or similar): 218 219 auth required pam_nologin.so no_warn 220 221 and change it according to this example: 222 223 account required pam_nologin.so no_warn 224 225 That is, the first word needs to be changed from "auth" to 226 "account". The new line can be moved to the account section 227 within the file for clarity. Not updating pam.conf(5) files 228 will result in nologin(5) ignored by the respective services. 229 23020070529: 231 The ether_ioctl() function has been synchronized with ioctl(2) 232 and ifnet.if_ioctl. Due to that, the size of one of its arguments 233 has changed on 64-bit architectures. All kernel modules using 234 ether_ioctl() need to be rebuilt on such architectures. 235 23620070516: 237 Improved INCLUDE_CONFIG_FILE support has been introduced to the 238 config(8) utility. In order to take advantage of this new 239 functionality, you are expected to recompile and install 240 src/usr.sbin/config. If you don't rebuild config(8), and your 241 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 242 build will be broken because of a missing "kernconfstring" 243 symbol. 244 24520070513: 246 Symbol versioning is enabled by default. To disable it, use 247 option WITHOUT_SYMVER. It is not advisable to attempt to 248 disable symbol versioning once it is enabled; your installworld 249 will break because a symbol version-less libc will get installed 250 before the install tools. As a result, the old install tools, 251 which previously had symbol dependencies to FBSD_1.0, will fail 252 because the freshly installed libc will not have them. 253 254 The default threading library (providing "libpthread") has been 255 changed to libthr. If you wish to have libkse as your default, 256 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 257 25820070423: 259 The ABI breakage in sendmail(8)'s libmilter has been repaired 260 so it is no longer necessary to recompile mail filters (aka, 261 milters). If you recompiled mail filters after the 20070408 262 note, it is not necessary to recompile them again. 263 26420070417: 265 The new trunk(4) driver has been renamed to lagg(4) as it better 266 reflects its purpose. ifconfig will need to be recompiled. 267 26820070408: 269 sendmail(8) has been updated to version 8.14.1. Mail filters 270 (aka, milters) compiled against the libmilter included in the 271 base operating system should be recompiled. 272 27320070302: 274 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 275 In order to use them one must agree to the respective LICENSE in 276 share/doc/legal and define legal.intel_<name>.license_ack=1 via 277 loader.conf(5) or kenv(1). Make sure to deinstall the now 278 deprecated modules from the respective firmware ports. 279 28020070228: 281 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 282 were removed from FreeBSD's libc. These originally came from INRIA 283 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 284 deprecated in previous releases. 285 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 286 replace it as a more portable (and re-entrant) API. 287 28820070224: 289 To support interrupt filtering a modification to the newbus API 290 has occurred, ABI was broken and __FreeBSD_version was bumped 291 to 700031. Please make sure that your kernel and modules are in 292 sync. For more info: 293 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 294 29520070224: 296 The IPv6 multicast forwarding code may now be loaded into GENERIC 297 kernels by loading the ip_mroute.ko module. This is built into the 298 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 299 set; see src.conf(5) for more information. 300 30120070214: 302 The output of netstat -r has changed. Without -n, we now only 303 print a "network name" without the prefix length if the network 304 address and mask exactly match a Class A/B/C network, and an entry 305 exists in the nsswitch "networks" map. 306 With -n, we print the full unabbreviated CIDR network prefix in 307 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 308 This change is in preparation for changes such as equal-cost 309 multipath, and to more generally assist operational deployment 310 of FreeBSD as a modern IPv4 router. 311 31220070210: 313 PIM has been turned on by default in the IPv4 multicast 314 routing code. The kernel option 'PIM' has now been removed. 315 PIM is now built by default if option 'MROUTING' is specified. 316 It may now be loaded into GENERIC kernels by loading the 317 ip_mroute.ko module. 318 31920070207: 320 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 321 has been removed. Its functionality may be achieved by explicitly 322 configuring gif(4) interfaces and using the 'phyint' keyword in 323 mrouted.conf. 324 XORP does not support source-routed IPv4 multicast tunnels nor the 325 integrated IPIP tunneling, therefore it is not affected by this 326 change. The __FreeBSD_version macro has been bumped to 700030. 327 32820061221: 329 Support for PCI Message Signalled Interrupts has been 330 re-enabled in the bge driver, only for those chips which are 331 believed to support it properly. If there are any problems, 332 MSI can be disabled completely by setting the 333 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 334 in the loader. 335 33620061214: 337 Support for PCI Message Signalled Interrupts has been 338 disabled again in the bge driver. Many revisions of the 339 hardware fail to support it properly. Support can be 340 re-enabled by removing the #define of BGE_DISABLE_MSI in 341 "src/sys/dev/bge/if_bge.c". 342 34320061214: 344 Support for PCI Message Signalled Interrupts has been added 345 to the bge driver. If there are any problems, MSI can be 346 disabled completely by setting the 'hw.pci.enable_msi' and 347 'hw.pci.enable_msix' tunables to 0 in the loader. 348 34920061205: 350 The removal of several facets of the experimental Threading 351 system from the kernel means that the proc and thread structures 352 have changed quite a bit. I suggest all kernel modules that might 353 reference these structures be recompiled.. Especially the 354 linux module. 355 35620061126: 357 Sound infrastructure has been updated with various fixes and 358 improvements. Most of the changes are pretty much transparent, 359 with exceptions of followings: 360 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 361 moved to their own dev sysctl nodes, for example: 362 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 363 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 364 own chardev in the form of "dsp%d.<function>%d", where <function> 365 is p = playback, r = record and v = virtual, respectively. Users 366 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 367 This does not affect those who are using "/dev/dsp". 368 36920061122: 370 The following binaries have been disconnected from the build: 371 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 372 and mount_std. The functionality of these programs has been 373 moved into the mount program. For example, to mount a devfs 374 filesystem, instead of using mount_devfs, use: "mount -t devfs". 375 This does not affect entries in /etc/fstab, since entries in 376 /etc/fstab are always processed with "mount -t fstype". 377 37820061113: 379 Support for PCI Message Signalled Interrupts on i386 and amd64 380 has been added to the kernel and various drivers will soon be 381 updated to use MSI when it is available. If there are any problems, 382 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 383 and 'hw.pci.enable_msix' tunables to 0 in the loader. 384 38520061110: 386 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 387 The lockmgr object layout has been changed as a result of having 388 a lock_object embedded in it. As a consequence all file system 389 kernel modules must be re-compiled. The mutex profiling man page 390 has not yet been updated to reflect this change. 391 39220061026: 393 KSE in the kernel has now been made optional and turned on by 394 default. Use 'nooption KSE' in your kernel config to turn it 395 off. All kernel modules *must* be recompiled after this change. 396 There-after, modules from a KSE kernel should be compatible with 397 modules from a NOKSE kernel due to the temporary padding fields 398 added to 'struct proc'. 399 40020060929: 401 mrouted and its utilities have been removed from the base system. 402 40320060927: 404 Some ioctl(2) command codes have changed. Full backward ABI 405 compatibility is provided if the "options COMPAT_FREEBSD6" is 406 present in the kernel configuration file. Make sure to add 407 this option to your kernel config file, or recompile X.Org 408 and the rest of ports; otherwise they may refuse to work. 409 41020060924: 411 tcpslice has been removed from the base system. 412 41320060913: 414 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 415 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 416 systat needs to be rebuilt. 417 41820060903: 419 libpcap updated to v0.9.4 and tcpdump to v3.9.4 420 42120060816: 422 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 423 for IPFIREWALL_FORWARD is now as it was before when it was first 424 committed and for years after. The behaviour is now ON. 425 42620060725: 427 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 428 Now it can decrypt files created from different architectures. 429 Unfortunately, it is no longer able to decrypt a cipher text 430 generated with an older version on 64 bit architectures. 431 If you have such a file, you need old utility to decrypt it. 432 43320060709: 434 The interface version of the i4b kernel part has changed. So 435 after updating the kernel sources and compiling a new kernel, 436 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 437 be rebuilt, and vice versa. 438 43920060627: 440 The XBOX kernel now defaults to the nfe(4) driver instead of 441 the nve(4) driver. Please update your configuration 442 accordingly. 443 44420060514: 445 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 446 PCnet family of NICs has been removed. The new le(4) driver serves 447 as an equivalent but cross-platform replacement with the pcn(4) 448 driver still providing performance-optimized support for the subset 449 of AMD Am79C971 PCnet-FAST and greater chips as before. 450 45120060511: 452 The machdep.* sysctls and the adjkerntz utility have been 453 modified a bit. The new adjkerntz utility uses the new 454 sysctl names and sysctlbyname() calls, so it may be impossible 455 to run an old /sbin/adjkerntz utility in single-user mode 456 with a new kernel. Replace the `adjkerntz -i' step before 457 `make installworld' with: 458 459 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 460 461 and proceed as usual with the rest of the installworld-stage 462 steps. Otherwise, you risk installing binaries with their 463 timestamp set several hours in the future, especially if 464 you are running with local time set to GMT+X hours. 465 46620060412: 467 The ip6fw utility has been removed. The behavior provided by 468 ip6fw has been in ipfw2 for a good while and the rc.d scripts 469 have been updated to deal with it. There are some rules that 470 might not migrate cleanly. Use rc.firewall6 as a template to 471 rewrite rules. 472 47320060428: 474 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 475 attachments have been removed. Make sure to configure scc(4) 476 on sparc64. Note also that by default puc(4) will use uart(4) 477 and not sio(4) for serial ports because interrupt handling has 478 been optimized for multi-port serial cards and only uart(4) 479 implements the interface to support it. 480 48120060330: 482 The scc(4) driver replaces puc(4) for Serial Communications 483 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 484 Z8530. On sparc64, it is advised to add scc(4) to the kernel 485 configuration to make sure that the serial ports remain 486 functional. 487 48820060317: 489 Most world/kernel related NO_* build options changed names. 490 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 491 after FreeBSD ports) and should be set in /etc/src.conf 492 (the src.conf(5) manpage is provided). Full backwards 493 compatibility is maintained for the time being though it's 494 highly recommended to start moving old options out of the 495 system-wide /etc/make.conf file into the new /etc/src.conf 496 while also properly renaming them. More conversions will 497 likely follow. Posting to current@: 498 499 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 500 50120060305: 502 The NETSMBCRYPTO kernel option has been retired because its 503 functionality is always included in NETSMB and smbfs.ko now. 504 50520060303: 506 The TDFX_LINUX kernel option was retired and replaced by the 507 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 508 kernel module. Loading it alone should suffice to get 3dfx support 509 for Linux apps because it will pull in 3dfx.ko and linux.ko through 510 its dependencies. 511 51220060204: 513 The 'audit' group was added to support the new auditing functionality 514 in the base system. Be sure to follow the directions for updating, 515 including the requirement to run mergemaster -p. 516 51720060201: 518 The kernel ABI to file system modules was changed on i386. 519 Please make sure that your kernel and modules are in sync. 520 52120060118: 522 This actually occured some time ago, but installing the kernel 523 now also installs a bunch of symbol files for the kernel modules. 524 This increases the size of /boot/kernel to about 67Mbytes. You 525 will need twice this if you will eventually back this up to kernel.old 526 on your next install. 527 If you have a shortage of room in your root partition, you should add 528 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 529 to your /etc/make.conf. 530 53120060113: 532 libc's malloc implementation has been replaced. This change has the 533 potential to uncover application bugs that previously went unnoticed. 534 See the malloc(3) manual page for more details. 535 53620060112: 537 The generic netgraph(4) cookie has been changed. If you upgrade 538 kernel passing this point, you also need to upgrade userland 539 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 540 54120060106: 542 si(4)'s device files now contain the unit number. 543 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 544 54520060106: 546 The kernel ABI was mostly destroyed due to a change in the size 547 of struct lock_object which is nested in other structures such 548 as mutexes which are nested in all sorts of other structures. 549 Make sure your kernel and modules are in sync. 550 55120051231: 552 The page coloring algorithm in the VM subsystem was converted 553 from tuning with kernel options to autotuning. Please remove 554 any PQ_* option except PQ_NOOPT from your kernel config. 555 55620051211: 557 The net80211-related tools in the tools/tools/ath directory 558 have been moved to tools/tools/net80211 and renamed with a 559 "wlan" prefix. Scripts that use them should be adjusted 560 accordingly. 561 56220051202: 563 Scripts in the local_startup directories (as defined in 564 /etc/defaults/rc.conf) that have the new rc.d semantics will 565 now be run as part of the base system rcorder. If there are 566 errors or problems with one of these local scripts, it could 567 cause boot problems. If you encounter such problems, boot in 568 single user mode, remove that script from the */rc.d directory. 569 Please report the problem to the port's maintainer, and the 570 freebsd-ports@freebsd.org mailing list. 571 57220051129: 573 The nodev mount option was deprecated in RELENG_6 (where it 574 was a no-op), and is now unsupported. If you have nodev or dev listed 575 in /etc/fstab, remove it, otherwise it will result in a mount error. 576 57720051129: 578 ABI between ipfw(4) and ipfw(8) has been changed. You need 579 to rebuild ipfw(8) when rebuilding kernel. 580 58120051108: 582 rp(4)'s device files now contain the unit number. 583 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 584 58520051029: 586 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 587 Its /etc/rc.conf.d configuration file has been `ppp' from 588 the beginning, and hence there is no need to touch it. 589 59020051014: 591 Now most modules get their build-time options from the kernel 592 configuration file. A few modules still have fixed options 593 due to their non-conformant implementation, but they will be 594 corrected eventually. You may need to review the options of 595 the modules in use, explicitly specify the non-default options 596 in the kernel configuration file, and rebuild the kernel and 597 modules afterwards. 598 59920051001: 600 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 601 to turn polling(4) on your interfaces. 602 60320050927: 604 The old bridge(4) implementation was retired. The new 605 if_bridge(4) serves as a full functional replacement. 606 60720050722: 608 The ai_addrlen of a struct addrinfo was changed to a socklen_t 609 to conform to POSIX-2001. This change broke an ABI 610 compatibility on 64 bit architecture. You have to recompile 611 userland programs that use getaddrinfo(3) on 64 bit 612 architecture. 613 61420050711: 615 RELENG_6 branched here. 616 61720050629: 618 The pccard_ifconfig rc.conf variable has been removed and a new 619 variable, ifconfig_DEFAULT has been introduced. Unlike 620 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 621 do not have ifconfig_ifn entries rather than just those in 622 removable_interfaces. 623 62420050616: 625 Some previous versions of PAM have permitted the use of 626 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 627 to third party PAM modules in /usr/local/lib. A change has been 628 made to require the use of absolute paths in order to avoid 629 ambiguity and dependence on library path configuration, which may 630 affect existing configurations. 631 63220050610: 633 Major changes to network interface API. All drivers must be 634 recompiled. Drivers not in the base system will need to be 635 updated to the new APIs. 636 63720050609: 638 Changes were made to kinfo_proc in sys/user.h. Please recompile 639 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 640 will not behave correctly. 641 642 The API and ABI for hwpmc(4) have changed with the addition 643 of sampling support. Please recompile lib/libpmc(3) and 644 usr.sbin/{pmcstat,pmccontrol}. 645 64620050606: 647 The OpenBSD dhclient was imported in place of the ISC dhclient 648 and the network interface configuration scripts were updated 649 accordingly. If you use DHCP to configure your interfaces, you 650 must now run devd. Also, DNS updating was lost so you will need 651 to find a workaround if you use this feature. 652 653 The '_dhcp' user was added to support the OpenBSD dhclient. Be 654 sure to run mergemaster -p (like you are supposed to do every time 655 anyway). 656 65720050605: 658 if_bridge was added to the tree. This has changed struct ifnet. 659 Please recompile userland and all network related modules. 660 66120050603: 662 The n_net of a struct netent was changed to an uint32_t, and 663 1st argument of getnetbyaddr() was changed to an uint32_t, to 664 conform to POSIX-2001. These changes broke an ABI 665 compatibility on 64 bit architecture. With these changes, 666 shlib major of libpcap was bumped. You have to recompile 667 userland programs that use getnetbyaddr(3), getnetbyname(3), 668 getnetent(3) and/or libpcap on 64 bit architecture. 669 67020050528: 671 Kernel parsing of extra options on '#!' first lines of shell 672 scripts has changed. Lines with multiple options likely will 673 fail after this date. For full details, please see 674 http://people.freebsd.org/~gad/Updating-20050528.txt 675 67620050503: 677 The packet filter (pf) code has been updated to OpenBSD 3.7 678 Please note the changed anchor syntax and the fact that 679 authpf(8) now needs a mounted fdescfs(5) to function. 680 68120050415: 682 The NO_MIXED_MODE kernel option has been removed from the i386 683 amd64 platforms as its use has been superceded by the new local 684 APIC timer code. Any kernel config files containing this option 685 should be updated. 686 68720050227: 688 The on-disk format of LC_CTYPE files was changed to be machine 689 independent. Please make sure NOT to use NO_CLEAN buildworld 690 when crossing this point. Crossing this point also requires 691 recompile or reinstall of all locale depended packages. 692 69320050225: 694 The ifi_epoch member of struct if_data has been changed to 695 contain the uptime at which the interface was created or the 696 statistics zeroed rather then the wall clock time because 697 wallclock time may go backwards. This should have no impact 698 unless an snmp implementation is using this value (I know of 699 none at this point.) 700 70120050224: 702 The acpi_perf and acpi_throttle drivers are now part of the 703 acpi(4) main module. They are no longer built separately. 704 70520050223: 706 The layout of struct image_params has changed. You have to 707 recompile all compatibility modules (linux, svr4, etc) for use 708 with the new kernel. 709 71020050223: 711 The p4tcc driver has been merged into cpufreq(4). This makes 712 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 713 compile in "device cpufreq" to restore this functionality. 714 71520050220: 716 The responsibility of recomputing the file system summary of 717 a SoftUpdates-enabled dirty volume has been transferred to the 718 background fsck. A rebuild of fsck(8) utility is recommended 719 if you have updated the kernel. 720 721 To get the old behavior (recompute file system summary at mount 722 time), you can set vfs.ffs.compute_summary_at_mount=1 before 723 mounting the new volume. 724 72520050206: 726 The cpufreq import is complete. As part of this, the sysctls for 727 acpi(4) throttling have been removed. The power_profile script 728 has been updated, so you can use performance/economy_cpu_freq in 729 rc.conf(5) to set AC on/offline cpu frequencies. 730 73120050206: 732 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 733 requires recompiling libnetgraph and userland netgraph utilities. 734 73520050114: 736 Support for abbreviated forms of a number of ipfw options is 737 now deprecated. Warnings are printed to stderr indicating the 738 correct full form when a match occurs. Some abbreviations may 739 be supported at a later date based on user feedback. To be 740 considered for support, abbreviations must be in use prior to 741 this commit and unlikely to be confused with current key words. 742 74320041221: 744 By a popular demand, a lot of NOFOO options were renamed 745 to NO_FOO (see bsd.compat.mk for a full list). The old 746 spellings are still supported, but will cause annoying 747 warnings on stderr. Make sure you upgrade properly (see 748 the COMMON ITEMS: section later in this file). 749 75020041219: 751 Auto-loading of ancillary wlan modules such as wlan_wep has 752 been temporarily disabled; you need to statically configure 753 the modules you need into your kernel or explicitly load them 754 prior to use. Specifically, if you intend to use WEP encryption 755 with an 802.11 device load/configure wlan_wep; if you want to 756 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 757 and wlan_xauth as required. 758 75920041213: 760 The behaviour of ppp(8) has changed slightly. If lqr is enabled 761 (``enable lqr''), older versions would revert to LCP ECHO mode on 762 negotiation failure. Now, ``enable echo'' is required for this 763 behaviour. The ppp version number has been bumped to 3.4.2 to 764 reflect the change. 765 76620041201: 767 The wlan support has been updated to split the crypto support 768 into separate modules. For static WEP you must configure the 769 wlan_wep module in your system or build and install the module 770 in place where it can be loaded (the kernel will auto-load 771 the module when a wep key is configured). 772 77320041201: 774 The ath driver has been updated to split the tx rate control 775 algorithm into a separate module. You need to include either 776 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 777 77820041116: 779 Support for systems with an 80386 CPU has been removed. Please 780 use FreeBSD 5.x or earlier on systems with an 80386. 781 78220041110: 783 We have had a hack which would mount the root filesystem 784 R/W if the device were named 'md*'. As part of the vnode 785 work I'm doing I have had to remove this hack. People 786 building systems which use preloaded MD root filesystems 787 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 788 their /etc/rc scripts. 789 79020041104: 791 FreeBSD 5.3 shipped here. 792 79320041102: 794 The size of struct tcpcb has changed again due to the removal 795 of RFC1644 T/TCP. You have to recompile userland programs that 796 read kmem for tcp sockets directly (netstat, sockstat, etc.) 797 79820041022: 799 The size of struct tcpcb has changed. You have to recompile 800 userland programs that read kmem for tcp sockets directly 801 (netstat, sockstat, etc.) 802 80320041016: 804 RELENG_5 branched here. For older entries, please see updating 805 in the RELENG_5 branch. 806 807COMMON ITEMS: 808 809 General Notes 810 ------------- 811 Avoid using make -j when upgrading. From time to time in the 812 past there have been problems using -j with buildworld and/or 813 installworld. This is especially true when upgrading between 814 "distant" versions (eg one that cross a major release boundary 815 or several minor releases, or when several months have passed 816 on the -current branch). 817 818 Sometimes, obscure build problems are the result of environment 819 poisoning. This can happen because the make utility reads its 820 environment when searching for values for global variables. 821 To run your build attempts in an "environmental clean room", 822 prefix all make commands with 'env -i '. See the env(1) manual 823 page for more details. 824 825 When upgrading from one major version to another it is generally 826 best to upgrade to the latest code in the currently installed branch 827 first, then do an upgrade to the new branch. This is the best-tested 828 upgrade path, and has the highest probability of being successful. 829 Please try this approach before reporting problems with a major 830 version upgrade. 831 832 To build a kernel 833 ----------------- 834 If you are updating from a prior version of FreeBSD (even one just 835 a few days old), you should follow this procedure. It is the most 836 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 837 838 make kernel-toolchain 839 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 840 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 841 842 To test a kernel once 843 --------------------- 844 If you just want to boot a kernel once (because you are not sure 845 if it works, or if you want to boot a known bad kernel to provide 846 debugging information) run 847 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 848 nextboot -k testkernel 849 850 To just build a kernel when you know that it won't mess you up 851 -------------------------------------------------------------- 852 This assumes you are already running a 5.X system. Replace 853 ${arch} with the architecture of your machine (e.g. "i386", 854 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 855 856 cd src/sys/${arch}/conf 857 config KERNEL_NAME_HERE 858 cd ../compile/KERNEL_NAME_HERE 859 make depend 860 make 861 make install 862 863 If this fails, go to the "To build a kernel" section. 864 865 To rebuild everything and install it on the current system. 866 ----------------------------------------------------------- 867 # Note: sometimes if you are running current you gotta do more than 868 # is listed here if you are upgrading from a really old current. 869 870 <make sure you have good level 0 dumps> 871 make buildworld 872 make kernel KERNCONF=YOUR_KERNEL_HERE 873 [1] 874 <reboot in single user> [3] 875 mergemaster -p [5] 876 make installworld 877 make delete-old 878 mergemaster [4] 879 <reboot> 880 881 882 To cross-install current onto a separate partition 883 -------------------------------------------------- 884 # In this approach we use a separate partition to hold 885 # current's root, 'usr', and 'var' directories. A partition 886 # holding "/", "/usr" and "/var" should be about 2GB in 887 # size. 888 889 <make sure you have good level 0 dumps> 890 <boot into -stable> 891 make buildworld 892 make buildkernel KERNCONF=YOUR_KERNEL_HERE 893 <maybe newfs current's root partition> 894 <mount current's root partition on directory ${CURRENT_ROOT}> 895 make installworld DESTDIR=${CURRENT_ROOT} 896 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 897 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 898 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 899 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 900 <reboot into current> 901 <do a "native" rebuild/install as described in the previous section> 902 <maybe install compatibility libraries from src/lib/compat> 903 <reboot> 904 905 906 To upgrade in-place from 5.x-stable to current 907 ---------------------------------------------- 908 <make sure you have good level 0 dumps> 909 make buildworld [9] 910 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 911 [1] 912 <reboot in single user> [3] 913 mergemaster -p [5] 914 make installworld 915 make delete-old 916 mergemaster -i [4] 917 <reboot> 918 919 Make sure that you've read the UPDATING file to understand the 920 tweaks to various things you need. At this point in the life 921 cycle of current, things change often and you are on your own 922 to cope. The defaults can also change, so please read ALL of 923 the UPDATING entries. 924 925 Also, if you are tracking -current, you must be subscribed to 926 freebsd-current@freebsd.org. Make sure that before you update 927 your sources that you have read and understood all the recent 928 messages there. If in doubt, please track -stable which has 929 much fewer pitfalls. 930 931 [1] If you have third party modules, such as vmware, you 932 should disable them at this point so they don't crash your 933 system on reboot. 934 935 [3] From the bootblocks, boot -s, and then do 936 fsck -p 937 mount -u / 938 mount -a 939 cd src 940 adjkerntz -i # if CMOS is wall time 941 Also, when doing a major release upgrade, it is required that 942 you boot into single user mode to do the installworld. 943 944 [4] Note: This step is non-optional. Failure to do this step 945 can result in a significant reduction in the functionality of the 946 system. Attempting to do it by hand is not recommended and those 947 that pursue this avenue should read this file carefully, as well 948 as the archives of freebsd-current and freebsd-hackers mailing lists 949 for potential gotchas. 950 951 [5] Usually this step is a noop. However, from time to time 952 you may need to do this if you get unknown user in the following 953 step. It never hurts to do it all the time. You may need to 954 install a new mergemaster (cd src/usr.sbin/mergemaster && make 955 install) after the buildworld before this step if you last updated 956 from current before 20020224 or from -stable before 20020408. 957 958 [8] In order to have a kernel that can run the 4.x binaries 959 needed to do an installworld, you must include the COMPAT_FREEBSD4 960 option in your kernel. Failure to do so may leave you with a system 961 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 962 is required to run the 5.x binaries on more recent kernels. 963 964 Make sure that you merge any new devices from GENERIC since the 965 last time you updated your kernel config file. 966 967 [9] When checking out sources, you must include the -P flag to have 968 cvs prune empty directories. 969 970 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 971 "?=" instead of the "=" assignment operator, so that buildworld can 972 override the CPUTYPE if it needs to. 973 974 MAKEOBJDIRPREFIX must be defined in an environment variable, and 975 not on the command line, or in /etc/make.conf. buildworld will 976 warn if it is improperly defined. 977FORMAT: 978 979This file contains a list, in reverse chronological order, of major 980breakages in tracking -current. Not all things will be listed here, 981and it only starts on October 16, 2004. Updating files can found in 982previous releases if your system is older than this. 983 984Copyright information: 985 986Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 987 988Redistribution, publication, translation and use, with or without 989modification, in full or in part, in any form or format of this 990document are permitted without further permission from the author. 991 992THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 993IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 994WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 995DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 996INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 997(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 998SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 999HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1000STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1001IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1002POSSIBILITY OF SUCH DAMAGE. 1003 1004If you find this document useful, and you want to, you may buy the 1005author a beer. 1006 1007Contact Warner Losh if you have any questions about your use of 1008this document. 1009 1010$FreeBSD$ 1011