UPDATING revision 175564
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 2520080121: 26 To upgrade to -current after this date, you must be running 27 FreeBSD after the RELENG_6 branch point. This means any of the 28 6.x releases are supported and should work. Upgrading to current 29 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 30 FreeBSD_version must be 600029 or higher, although this isn't 31 enforced in the Makefile at this time. 32 3320071128: 34 The ADAPTIVE_GIANT kernel option has been retired because its 35 functionality is the default now. 36 3720071118: 38 The AT keyboard emulation of sunkbd(4) has been turned on 39 by default. In order to make the special symbols of the Sun 40 keyboards driven by sunkbd(4) work under X these now have 41 to be configured the same way as Sun USB keyboards driven 42 by ukbd(4) (which also does AT keyboard emulation), f.e.: 43 44 Option "XkbLayout" "us" 45 Option "XkbRules" "xorg" 46 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 47 4820071024: 49 It has been decided that it is desirable to provide ABI 50 backwards compatibility to the FreeBSD 4/5/6 versions of the 51 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 52 broken with the introduction of PCI domain support (see the 53 20070930 entry). Unfortunately, this required the ABI of 54 PCIOCGETCONF to be broken again in order to be able to 55 provide backwards compatibility to the old version of that 56 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 57 again. As for prominent ports this affects neither pciutils 58 nor xorg-server this time, the hal port needs to be rebuilt 59 however. 60 6120071020: 62 The misnamed kthread_create() and friends have been renamed 63 to kproc_create() etc. Many of the callers already 64 used kproc_start().. 65 I will return kthread_create() and friends in a while 66 with implementations that actually create threads, not procs. 67 Renaming corresponds with version 800002. 68 6920071010: 70 RELENG_7 branched. 71 7220071009: 73 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 74 WITHOUT_LIBTHR are set. 75 7620070930: 77 The PCI code has been made aware of PCI domains. This means that 78 the location strings as used by pciconf(8) etc are now in the 79 following format: pci<domain>:<bus>:<device>[:<function>]. It 80 also means that consumers of <sys/pciio.h> potentially need to 81 be recompiled; this includes the hal and xorg-server ports. 82 8320070928: 84 The caching daemon (cached) was renamed to nscd. nscd.conf 85 configuration file should be used instead of cached.conf and 86 nscd_enable, nscd_pidfile and nscd_flags options should be used 87 instead of cached_enable, cached_pidfile and cached_flags in 88 rc.conf. 89 9020070921: 91 The getfacl(1) utility now prints owning user and group name 92 instead of owning uid and gid in the three line comment header. 93 This is the same behavior as getfacl(1) on Solaris and Linux. 94 9520070704: 96 The new IPsec code is now compiled in using the IPSEC option. The 97 IPSEC option now requires "device crypto" be defined in your kernel 98 configuration. The FAST_IPSEC kernel option is now deprecated. 99 10020070702: 101 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 102 note the changed syntax - keep state is now on by default. Also 103 note the fact that ftp-proxy(8) has been changed from bottom up and 104 has been moved from libexec to usr/sbin. Changes in the ALTQ 105 handling also affect users of IPFW's ALTQ capabilities. 106 10720070701: 108 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 109 only IPsec supported by FreeBSD. The new IPsec stack 110 supports both IPv4 and IPv6. The kernel option will change 111 after the code changes have settled in. For now the kernel 112 option IPSEC is deprecated and FAST_IPSEC is the only option, that 113 will change after some settling time. 114 11520070701: 116 The wicontrol(8) utility has been removed from the base system. wi(4) 117 cards should be configured using ifconfig(8), see the man page for more 118 information. 119 12020070612: 121 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 122 instead of the nve(4) driver. Please update your configuration 123 accordingly. 124 12520070612: 126 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 127 database if it is missing or older than the aliases file. If 128 desired, set the new rc.conf option sendmail_rebuild_aliases 129 to "YES" to restore that functionality. 130 13120070612: 132 The IPv4 multicast socket code has been considerably modified, and 133 moved to the file sys/netinet/in_mcast.c. Initial support for the 134 RFC 3678 Source-Specific Multicast Socket API has been added to 135 the IPv4 network stack. 136 137 Strict multicast and broadcast reception is now the default for 138 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 139 has now been removed. 140 141 The RFC 1724 hack for interface selection has been removed; the use 142 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 143 been added to replace it. Consumers such as routed will soon be 144 updated to reflect this. 145 146 These changes affect users who are running routed(8) or rdisc(8) 147 from the FreeBSD base system on point-to-point or unnumbered 148 interfaces. 149 15020070610: 151 The net80211 layer has changed significantly and all wireless 152 drivers that depend on it need to be recompiled. Further these 153 changes require that any program that interacts with the wireless 154 support in the kernel be recompiled; this includes: ifconfig, 155 wpa_supplicant, hostapd, and wlanstats. Users must also, for 156 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 157 if they use modules for wireless support. These modules implement 158 scanning support for station and ap modes, respectively. Failure 159 to load the appropriate module before marking a wireless interface 160 up will result in a message to the console and the device not 161 operating properly. 162 16320070610: 164 The pam_nologin(8) module ceases to provide an authentication 165 function and starts providing an account management function. 166 Consequent changes to /etc/pam.d should be brought in using 167 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 168 need manual editing as follows. Locate this line (or similar): 169 170 auth required pam_nologin.so no_warn 171 172 and change it according to this example: 173 174 account required pam_nologin.so no_warn 175 176 That is, the first word needs to be changed from "auth" to 177 "account". The new line can be moved to the account section 178 within the file for clarity. Not updating pam.conf(5) files 179 will result in nologin(5) ignored by the respective services. 180 18120070529: 182 The ether_ioctl() function has been synchronized with ioctl(2) 183 and ifnet.if_ioctl. Due to that, the size of one of its arguments 184 has changed on 64-bit architectures. All kernel modules using 185 ether_ioctl() need to be rebuilt on such architectures. 186 18720070516: 188 Improved INCLUDE_CONFIG_FILE support has been introduced to the 189 config(8) utility. In order to take advantage of this new 190 functionality, you are expected to recompile and install 191 src/usr.sbin/config. If you don't rebuild config(8), and your 192 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 193 build will be broken because of a missing "kernconfstring" 194 symbol. 195 19620070513: 197 Symbol versioning is enabled by default. To disable it, use 198 option WITHOUT_SYMVER. It is not advisable to attempt to 199 disable symbol versioning once it is enabled; your installworld 200 will break because a symbol version-less libc will get installed 201 before the install tools. As a result, the old install tools, 202 which previously had symbol dependencies to FBSD_1.0, will fail 203 because the freshly installed libc will not have them. 204 205 The default threading library (providing "libpthread") has been 206 changed to libthr. If you wish to have libkse as your default, 207 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 208 20920070423: 210 The ABI breakage in sendmail(8)'s libmilter has been repaired 211 so it is no longer necessary to recompile mail filters (aka, 212 milters). If you recompiled mail filters after the 20070408 213 note, it is not necessary to recompile them again. 214 21520070417: 216 The new trunk(4) driver has been renamed to lagg(4) as it better 217 reflects its purpose. ifconfig will need to be recompiled. 218 21920070408: 220 sendmail(8) has been updated to version 8.14.1. Mail filters 221 (aka, milters) compiled against the libmilter included in the 222 base operating system should be recompiled. 223 22420070302: 225 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 226 In order to use them one must agree to the respective LICENSE in 227 share/doc/legal and define legal.intel_<name>.license_ack=1 via 228 loader.conf(5) or kenv(1). Make sure to deinstall the now 229 deprecated modules from the respective firmware ports. 230 23120070228: 232 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 233 were removed from FreeBSD's libc. These originally came from INRIA 234 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 235 deprecated in previous releases. 236 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 237 replace it as a more portable (and re-entrant) API. 238 23920070224: 240 To support interrupt filtering a modification to the newbus API 241 has occurred, ABI was broken and __FreeBSD_version was bumped 242 to 700031. Please make sure that your kernel and modules are in 243 sync. For more info: 244 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 245 24620070224: 247 The IPv6 multicast forwarding code may now be loaded into GENERIC 248 kernels by loading the ip_mroute.ko module. This is built into the 249 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 250 set; see src.conf(5) for more information. 251 25220070214: 253 The output of netstat -r has changed. Without -n, we now only 254 print a "network name" without the prefix length if the network 255 address and mask exactly match a Class A/B/C network, and an entry 256 exists in the nsswitch "networks" map. 257 With -n, we print the full unabbreviated CIDR network prefix in 258 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 259 This change is in preparation for changes such as equal-cost 260 multipath, and to more generally assist operational deployment 261 of FreeBSD as a modern IPv4 router. 262 26320070210: 264 PIM has been turned on by default in the IPv4 multicast 265 routing code. The kernel option 'PIM' has now been removed. 266 PIM is now built by default if option 'MROUTING' is specified. 267 It may now be loaded into GENERIC kernels by loading the 268 ip_mroute.ko module. 269 27020070207: 271 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 272 has been removed. Its functionality may be achieved by explicitly 273 configuring gif(4) interfaces and using the 'phyint' keyword in 274 mrouted.conf. 275 XORP does not support source-routed IPv4 multicast tunnels nor the 276 integrated IPIP tunneling, therefore it is not affected by this 277 change. The __FreeBSD_version macro has been bumped to 700030. 278 27920061221: 280 Support for PCI Message Signalled Interrupts has been 281 re-enabled in the bge driver, only for those chips which are 282 believed to support it properly. If there are any problems, 283 MSI can be disabled completely by setting the 284 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 285 in the loader. 286 28720061214: 288 Support for PCI Message Signalled Interrupts has been 289 disabled again in the bge driver. Many revisions of the 290 hardware fail to support it properly. Support can be 291 re-enabled by removing the #define of BGE_DISABLE_MSI in 292 "src/sys/dev/bge/if_bge.c". 293 29420061214: 295 Support for PCI Message Signalled Interrupts has been added 296 to the bge driver. If there are any problems, MSI can be 297 disabled completely by setting the 'hw.pci.enable_msi' and 298 'hw.pci.enable_msix' tunables to 0 in the loader. 299 30020061205: 301 The removal of several facets of the experimental Threading 302 system from the kernel means that the proc and thread structures 303 have changed quite a bit. I suggest all kernel modules that might 304 reference these structures be recompiled.. Especially the 305 linux module. 306 30720061126: 308 Sound infrastructure has been updated with various fixes and 309 improvements. Most of the changes are pretty much transparent, 310 with exceptions of followings: 311 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 312 moved to their own dev sysctl nodes, for example: 313 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 314 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 315 own chardev in the form of "dsp%d.<function>%d", where <function> 316 is p = playback, r = record and v = virtual, respectively. Users 317 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 318 This does not affect those who are using "/dev/dsp". 319 32020061122: 321 The following binaries have been disconnected from the build: 322 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 323 and mount_std. The functionality of these programs has been 324 moved into the mount program. For example, to mount a devfs 325 filesystem, instead of using mount_devfs, use: "mount -t devfs". 326 This does not affect entries in /etc/fstab, since entries in 327 /etc/fstab are always processed with "mount -t fstype". 328 32920061113: 330 Support for PCI Message Signalled Interrupts on i386 and amd64 331 has been added to the kernel and various drivers will soon be 332 updated to use MSI when it is available. If there are any problems, 333 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 334 and 'hw.pci.enable_msix' tunables to 0 in the loader. 335 33620061110: 337 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 338 The lockmgr object layout has been changed as a result of having 339 a lock_object embedded in it. As a consequence all file system 340 kernel modules must be re-compiled. The mutex profiling man page 341 has not yet been updated to reflect this change. 342 34320061026: 344 KSE in the kernel has now been made optional and turned on by 345 default. Use 'nooption KSE' in your kernel config to turn it 346 off. All kernel modules *must* be recompiled after this change. 347 There-after, modules from a KSE kernel should be compatible with 348 modules from a NOKSE kernel due to the temporary padding fields 349 added to 'struct proc'. 350 35120060929: 352 mrouted and its utilities have been removed from the base system. 353 35420060927: 355 Some ioctl(2) command codes have changed. Full backward ABI 356 compatibility is provided if the "options COMPAT_FREEBSD6" is 357 present in the kernel configuration file. Make sure to add 358 this option to your kernel config file, or recompile X.Org 359 and the rest of ports; otherwise they may refuse to work. 360 36120060924: 362 tcpslice has been removed from the base system. 363 36420060913: 365 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 366 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 367 systat needs to be rebuilt. 368 36920060903: 370 libpcap updated to v0.9.4 and tcpdump to v3.9.4 371 37220060816: 373 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 374 for IPFIREWALL_FORWARD is now as it was before when it was first 375 committed and for years after. The behaviour is now ON. 376 37720060725: 378 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 379 Now it can decrypt files created from different architectures. 380 Unfortunately, it is no longer able to decrypt a cipher text 381 generated with an older version on 64 bit architectures. 382 If you have such a file, you need old utility to decrypt it. 383 38420060709: 385 The interface version of the i4b kernel part has changed. So 386 after updating the kernel sources and compiling a new kernel, 387 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 388 be rebuilt, and vice versa. 389 39020060627: 391 The XBOX kernel now defaults to the nfe(4) driver instead of 392 the nve(4) driver. Please update your configuration 393 accordingly. 394 39520060514: 396 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 397 PCnet family of NICs has been removed. The new le(4) driver serves 398 as an equivalent but cross-platform replacement with the pcn(4) 399 driver still providing performance-optimized support for the subset 400 of AMD Am79C971 PCnet-FAST and greater chips as before. 401 40220060511: 403 The machdep.* sysctls and the adjkerntz utility have been 404 modified a bit. The new adjkerntz utility uses the new 405 sysctl names and sysctlbyname() calls, so it may be impossible 406 to run an old /sbin/adjkerntz utility in single-user mode 407 with a new kernel. Replace the `adjkerntz -i' step before 408 `make installworld' with: 409 410 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 411 412 and proceed as usual with the rest of the installworld-stage 413 steps. Otherwise, you risk installing binaries with their 414 timestamp set several hours in the future, especially if 415 you are running with local time set to GMT+X hours. 416 41720060412: 418 The ip6fw utility has been removed. The behavior provided by 419 ip6fw has been in ipfw2 for a good while and the rc.d scripts 420 have been updated to deal with it. There are some rules that 421 might not migrate cleanly. Use rc.firewall6 as a template to 422 rewrite rules. 423 42420060428: 425 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 426 attachments have been removed. Make sure to configure scc(4) 427 on sparc64. Note also that by default puc(4) will use uart(4) 428 and not sio(4) for serial ports because interrupt handling has 429 been optimized for multi-port serial cards and only uart(4) 430 implements the interface to support it. 431 43220060330: 433 The scc(4) driver replaces puc(4) for Serial Communications 434 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 435 Z8530. On sparc64, it is advised to add scc(4) to the kernel 436 configuration to make sure that the serial ports remain 437 functional. 438 43920060317: 440 Most world/kernel related NO_* build options changed names. 441 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 442 after FreeBSD ports) and should be set in /etc/src.conf 443 (the src.conf(5) manpage is provided). Full backwards 444 compatibility is maintained for the time being though it's 445 highly recommended to start moving old options out of the 446 system-wide /etc/make.conf file into the new /etc/src.conf 447 while also properly renaming them. More conversions will 448 likely follow. Posting to current@: 449 450 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 451 45220060305: 453 The NETSMBCRYPTO kernel option has been retired because its 454 functionality is always included in NETSMB and smbfs.ko now. 455 45620060303: 457 The TDFX_LINUX kernel option was retired and replaced by the 458 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 459 kernel module. Loading it alone should suffice to get 3dfx support 460 for Linux apps because it will pull in 3dfx.ko and linux.ko through 461 its dependencies. 462 46320060204: 464 The 'audit' group was added to support the new auditing functionality 465 in the base system. Be sure to follow the directions for updating, 466 including the requirement to run mergemaster -p. 467 46820060201: 469 The kernel ABI to file system modules was changed on i386. 470 Please make sure that your kernel and modules are in sync. 471 47220060118: 473 This actually occured some time ago, but installing the kernel 474 now also installs a bunch of symbol files for the kernel modules. 475 This increases the size of /boot/kernel to about 67Mbytes. You 476 will need twice this if you will eventually back this up to kernel.old 477 on your next install. 478 If you have a shortage of room in your root partition, you should add 479 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 480 to your /etc/make.conf. 481 48220060113: 483 libc's malloc implementation has been replaced. This change has the 484 potential to uncover application bugs that previously went unnoticed. 485 See the malloc(3) manual page for more details. 486 48720060112: 488 The generic netgraph(4) cookie has been changed. If you upgrade 489 kernel passing this point, you also need to upgrade userland 490 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 491 49220060106: 493 si(4)'s device files now contain the unit number. 494 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 495 49620060106: 497 The kernel ABI was mostly destroyed due to a change in the size 498 of struct lock_object which is nested in other structures such 499 as mutexes which are nested in all sorts of other structures. 500 Make sure your kernel and modules are in sync. 501 50220051231: 503 The page coloring algorithm in the VM subsystem was converted 504 from tuning with kernel options to autotuning. Please remove 505 any PQ_* option except PQ_NOOPT from your kernel config. 506 50720051211: 508 The net80211-related tools in the tools/tools/ath directory 509 have been moved to tools/tools/net80211 and renamed with a 510 "wlan" prefix. Scripts that use them should be adjusted 511 accordingly. 512 51320051202: 514 Scripts in the local_startup directories (as defined in 515 /etc/defaults/rc.conf) that have the new rc.d semantics will 516 now be run as part of the base system rcorder. If there are 517 errors or problems with one of these local scripts, it could 518 cause boot problems. If you encounter such problems, boot in 519 single user mode, remove that script from the */rc.d directory. 520 Please report the problem to the port's maintainer, and the 521 freebsd-ports@freebsd.org mailing list. 522 52320051129: 524 The nodev mount option was deprecated in RELENG_6 (where it 525 was a no-op), and is now unsupported. If you have nodev or dev listed 526 in /etc/fstab, remove it, otherwise it will result in a mount error. 527 52820051129: 529 ABI between ipfw(4) and ipfw(8) has been changed. You need 530 to rebuild ipfw(8) when rebuilding kernel. 531 53220051108: 533 rp(4)'s device files now contain the unit number. 534 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 535 53620051029: 537 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 538 Its /etc/rc.conf.d configuration file has been `ppp' from 539 the beginning, and hence there is no need to touch it. 540 54120051014: 542 Now most modules get their build-time options from the kernel 543 configuration file. A few modules still have fixed options 544 due to their non-conformant implementation, but they will be 545 corrected eventually. You may need to review the options of 546 the modules in use, explicitly specify the non-default options 547 in the kernel configuration file, and rebuild the kernel and 548 modules afterwards. 549 55020051001: 551 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 552 to turn polling(4) on your interfaces. 553 55420050927: 555 The old bridge(4) implementation was retired. The new 556 if_bridge(4) serves as a full functional replacement. 557 55820050722: 559 The ai_addrlen of a struct addrinfo was changed to a socklen_t 560 to conform to POSIX-2001. This change broke an ABI 561 compatibility on 64 bit architecture. You have to recompile 562 userland programs that use getaddrinfo(3) on 64 bit 563 architecture. 564 56520050711: 566 RELENG_6 branched here. 567 56820050629: 569 The pccard_ifconfig rc.conf variable has been removed and a new 570 variable, ifconfig_DEFAULT has been introduced. Unlike 571 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 572 do not have ifconfig_ifn entries rather than just those in 573 removable_interfaces. 574 57520050616: 576 Some previous versions of PAM have permitted the use of 577 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 578 to third party PAM modules in /usr/local/lib. A change has been 579 made to require the use of absolute paths in order to avoid 580 ambiguity and dependence on library path configuration, which may 581 affect existing configurations. 582 58320050610: 584 Major changes to network interface API. All drivers must be 585 recompiled. Drivers not in the base system will need to be 586 updated to the new APIs. 587 58820050609: 589 Changes were made to kinfo_proc in sys/user.h. Please recompile 590 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 591 will not behave correctly. 592 593 The API and ABI for hwpmc(4) have changed with the addition 594 of sampling support. Please recompile lib/libpmc(3) and 595 usr.sbin/{pmcstat,pmccontrol}. 596 59720050606: 598 The OpenBSD dhclient was imported in place of the ISC dhclient 599 and the network interface configuration scripts were updated 600 accordingly. If you use DHCP to configure your interfaces, you 601 must now run devd. Also, DNS updating was lost so you will need 602 to find a workaround if you use this feature. 603 604 The '_dhcp' user was added to support the OpenBSD dhclient. Be 605 sure to run mergemaster -p (like you are supposed to do every time 606 anyway). 607 60820050605: 609 if_bridge was added to the tree. This has changed struct ifnet. 610 Please recompile userland and all network related modules. 611 61220050603: 613 The n_net of a struct netent was changed to an uint32_t, and 614 1st argument of getnetbyaddr() was changed to an uint32_t, to 615 conform to POSIX-2001. These changes broke an ABI 616 compatibility on 64 bit architecture. With these changes, 617 shlib major of libpcap was bumped. You have to recompile 618 userland programs that use getnetbyaddr(3), getnetbyname(3), 619 getnetent(3) and/or libpcap on 64 bit architecture. 620 62120050528: 622 Kernel parsing of extra options on '#!' first lines of shell 623 scripts has changed. Lines with multiple options likely will 624 fail after this date. For full details, please see 625 http://people.freebsd.org/~gad/Updating-20050528.txt 626 62720050503: 628 The packet filter (pf) code has been updated to OpenBSD 3.7 629 Please note the changed anchor syntax and the fact that 630 authpf(8) now needs a mounted fdescfs(5) to function. 631 63220050415: 633 The NO_MIXED_MODE kernel option has been removed from the i386 634 amd64 platforms as its use has been superceded by the new local 635 APIC timer code. Any kernel config files containing this option 636 should be updated. 637 63820050227: 639 The on-disk format of LC_CTYPE files was changed to be machine 640 independent. Please make sure NOT to use NO_CLEAN buildworld 641 when crossing this point. Crossing this point also requires 642 recompile or reinstall of all locale depended packages. 643 64420050225: 645 The ifi_epoch member of struct if_data has been changed to 646 contain the uptime at which the interface was created or the 647 statistics zeroed rather then the wall clock time because 648 wallclock time may go backwards. This should have no impact 649 unless an snmp implementation is using this value (I know of 650 none at this point.) 651 65220050224: 653 The acpi_perf and acpi_throttle drivers are now part of the 654 acpi(4) main module. They are no longer built separately. 655 65620050223: 657 The layout of struct image_params has changed. You have to 658 recompile all compatibility modules (linux, svr4, etc) for use 659 with the new kernel. 660 66120050223: 662 The p4tcc driver has been merged into cpufreq(4). This makes 663 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 664 compile in "device cpufreq" to restore this functionality. 665 66620050220: 667 The responsibility of recomputing the file system summary of 668 a SoftUpdates-enabled dirty volume has been transferred to the 669 background fsck. A rebuild of fsck(8) utility is recommended 670 if you have updated the kernel. 671 672 To get the old behavior (recompute file system summary at mount 673 time), you can set vfs.ffs.compute_summary_at_mount=1 before 674 mounting the new volume. 675 67620050206: 677 The cpufreq import is complete. As part of this, the sysctls for 678 acpi(4) throttling have been removed. The power_profile script 679 has been updated, so you can use performance/economy_cpu_freq in 680 rc.conf(5) to set AC on/offline cpu frequencies. 681 68220050206: 683 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 684 requires recompiling libnetgraph and userland netgraph utilities. 685 68620050114: 687 Support for abbreviated forms of a number of ipfw options is 688 now deprecated. Warnings are printed to stderr indicating the 689 correct full form when a match occurs. Some abbreviations may 690 be supported at a later date based on user feedback. To be 691 considered for support, abbreviations must be in use prior to 692 this commit and unlikely to be confused with current key words. 693 69420041221: 695 By a popular demand, a lot of NOFOO options were renamed 696 to NO_FOO (see bsd.compat.mk for a full list). The old 697 spellings are still supported, but will cause annoying 698 warnings on stderr. Make sure you upgrade properly (see 699 the COMMON ITEMS: section later in this file). 700 70120041219: 702 Auto-loading of ancillary wlan modules such as wlan_wep has 703 been temporarily disabled; you need to statically configure 704 the modules you need into your kernel or explicitly load them 705 prior to use. Specifically, if you intend to use WEP encryption 706 with an 802.11 device load/configure wlan_wep; if you want to 707 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 708 and wlan_xauth as required. 709 71020041213: 711 The behaviour of ppp(8) has changed slightly. If lqr is enabled 712 (``enable lqr''), older versions would revert to LCP ECHO mode on 713 negotiation failure. Now, ``enable echo'' is required for this 714 behaviour. The ppp version number has been bumped to 3.4.2 to 715 reflect the change. 716 71720041201: 718 The wlan support has been updated to split the crypto support 719 into separate modules. For static WEP you must configure the 720 wlan_wep module in your system or build and install the module 721 in place where it can be loaded (the kernel will auto-load 722 the module when a wep key is configured). 723 72420041201: 725 The ath driver has been updated to split the tx rate control 726 algorithm into a separate module. You need to include either 727 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 728 72920041116: 730 Support for systems with an 80386 CPU has been removed. Please 731 use FreeBSD 5.x or earlier on systems with an 80386. 732 73320041110: 734 We have had a hack which would mount the root filesystem 735 R/W if the device were named 'md*'. As part of the vnode 736 work I'm doing I have had to remove this hack. People 737 building systems which use preloaded MD root filesystems 738 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 739 their /etc/rc scripts. 740 74120041104: 742 FreeBSD 5.3 shipped here. 743 74420041102: 745 The size of struct tcpcb has changed again due to the removal 746 of RFC1644 T/TCP. You have to recompile userland programs that 747 read kmem for tcp sockets directly (netstat, sockstat, etc.) 748 74920041022: 750 The size of struct tcpcb has changed. You have to recompile 751 userland programs that read kmem for tcp sockets directly 752 (netstat, sockstat, etc.) 753 75420041016: 755 RELENG_5 branched here. For older entries, please see updating 756 in the RELENG_5 branch. 757 758COMMON ITEMS: 759 760 General Notes 761 ------------- 762 Avoid using make -j when upgrading. From time to time in the 763 past there have been problems using -j with buildworld and/or 764 installworld. This is especially true when upgrading between 765 "distant" versions (eg one that cross a major release boundary 766 or several minor releases, or when several months have passed 767 on the -current branch). 768 769 Sometimes, obscure build problems are the result of environment 770 poisoning. This can happen because the make utility reads its 771 environment when searching for values for global variables. 772 To run your build attempts in an "environmental clean room", 773 prefix all make commands with 'env -i '. See the env(1) manual 774 page for more details. 775 776 When upgrading from one major version to another it is generally 777 best to upgrade to the latest code in the currently installed branch 778 first, then do an upgrade to the new branch. This is the best-tested 779 upgrade path, and has the highest probability of being successful. 780 Please try this approach before reporting problems with a major 781 version upgrade. 782 783 To build a kernel 784 ----------------- 785 If you are updating from a prior version of FreeBSD (even one just 786 a few days old), you should follow this procedure. It is the most 787 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 788 789 make kernel-toolchain 790 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 791 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 792 793 To test a kernel once 794 --------------------- 795 If you just want to boot a kernel once (because you are not sure 796 if it works, or if you want to boot a known bad kernel to provide 797 debugging information) run 798 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 799 nextboot -k testkernel 800 801 To just build a kernel when you know that it won't mess you up 802 -------------------------------------------------------------- 803 This assumes you are already running a 5.X system. Replace 804 ${arch} with the architecture of your machine (e.g. "i386", 805 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 806 807 cd src/sys/${arch}/conf 808 config KERNEL_NAME_HERE 809 cd ../compile/KERNEL_NAME_HERE 810 make depend 811 make 812 make install 813 814 If this fails, go to the "To build a kernel" section. 815 816 To rebuild everything and install it on the current system. 817 ----------------------------------------------------------- 818 # Note: sometimes if you are running current you gotta do more than 819 # is listed here if you are upgrading from a really old current. 820 821 <make sure you have good level 0 dumps> 822 make buildworld 823 make kernel KERNCONF=YOUR_KERNEL_HERE 824 [1] 825 <reboot in single user> [3] 826 mergemaster -p [5] 827 make installworld 828 make delete-old 829 mergemaster [4] 830 <reboot> 831 832 833 To cross-install current onto a separate partition 834 -------------------------------------------------- 835 # In this approach we use a separate partition to hold 836 # current's root, 'usr', and 'var' directories. A partition 837 # holding "/", "/usr" and "/var" should be about 2GB in 838 # size. 839 840 <make sure you have good level 0 dumps> 841 <boot into -stable> 842 make buildworld 843 make buildkernel KERNCONF=YOUR_KERNEL_HERE 844 <maybe newfs current's root partition> 845 <mount current's root partition on directory ${CURRENT_ROOT}> 846 make installworld DESTDIR=${CURRENT_ROOT} 847 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 848 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 849 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 850 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 851 <reboot into current> 852 <do a "native" rebuild/install as described in the previous section> 853 <maybe install compatibility libraries from src/lib/compat> 854 <reboot> 855 856 857 To upgrade in-place from 5.x-stable to current 858 ---------------------------------------------- 859 <make sure you have good level 0 dumps> 860 make buildworld [9] 861 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 862 [1] 863 <reboot in single user> [3] 864 mergemaster -p [5] 865 make installworld 866 make delete-old 867 mergemaster -i [4] 868 <reboot> 869 870 Make sure that you've read the UPDATING file to understand the 871 tweaks to various things you need. At this point in the life 872 cycle of current, things change often and you are on your own 873 to cope. The defaults can also change, so please read ALL of 874 the UPDATING entries. 875 876 Also, if you are tracking -current, you must be subscribed to 877 freebsd-current@freebsd.org. Make sure that before you update 878 your sources that you have read and understood all the recent 879 messages there. If in doubt, please track -stable which has 880 much fewer pitfalls. 881 882 [1] If you have third party modules, such as vmware, you 883 should disable them at this point so they don't crash your 884 system on reboot. 885 886 [3] From the bootblocks, boot -s, and then do 887 fsck -p 888 mount -u / 889 mount -a 890 cd src 891 adjkerntz -i # if CMOS is wall time 892 Also, when doing a major release upgrade, it is required that 893 you boot into single user mode to do the installworld. 894 895 [4] Note: This step is non-optional. Failure to do this step 896 can result in a significant reduction in the functionality of the 897 system. Attempting to do it by hand is not recommended and those 898 that pursue this avenue should read this file carefully, as well 899 as the archives of freebsd-current and freebsd-hackers mailing lists 900 for potential gotchas. 901 902 [5] Usually this step is a noop. However, from time to time 903 you may need to do this if you get unknown user in the following 904 step. It never hurts to do it all the time. You may need to 905 install a new mergemaster (cd src/usr.sbin/mergemaster && make 906 install) after the buildworld before this step if you last updated 907 from current before 20020224 or from -stable before 20020408. 908 909 [8] In order to have a kernel that can run the 4.x binaries 910 needed to do an installworld, you must include the COMPAT_FREEBSD4 911 option in your kernel. Failure to do so may leave you with a system 912 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 913 is required to run the 5.x binaries on more recent kernels. 914 915 Make sure that you merge any new devices from GENERIC since the 916 last time you updated your kernel config file. 917 918 [9] When checking out sources, you must include the -P flag to have 919 cvs prune empty directories. 920 921 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 922 "?=" instead of the "=" assignment operator, so that buildworld can 923 override the CPUTYPE if it needs to. 924 925 MAKEOBJDIRPREFIX must be defined in an environment variable, and 926 not on the command line, or in /etc/make.conf. buildworld will 927 warn if it is improperly defined. 928FORMAT: 929 930This file contains a list, in reverse chronological order, of major 931breakages in tracking -current. Not all things will be listed here, 932and it only starts on October 16, 2004. Updating files can found in 933previous releases if your system is older than this. 934 935Copyright information: 936 937Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 938 939Redistribution, publication, translation and use, with or without 940modification, in full or in part, in any form or format of this 941document are permitted without further permission from the author. 942 943THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 944IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 945WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 946DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 947INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 948(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 949SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 950HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 951STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 952IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 953POSSIBILITY OF SUCH DAMAGE. 954 955If you find this document useful, and you want to, you may buy the 956author a beer. 957 958Contact Warner Losh if you have any questions about your use of 959this document. 960 961$FreeBSD: head/UPDATING 175564 2008-01-22 15:05:22Z trhodes $ 962