UPDATING revision 175550
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. 23 2420080121: 25 To upgrade to -current after this date, you must be running 26 FreeBSD after the RELENG_6 branch point. This means any of the 27 6.x releases are supported and should work. Upgrading to current 28 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 29 FreeBSD_version must be 600029 or higher, although this isn't 30 enforced in the Makefile at this time. 31 3220071128: 33 The ADAPTIVE_GIANT kernel option has been retired because its 34 functionality is the default now. 35 3620071118: 37 The AT keyboard emulation of sunkbd(4) has been turned on 38 by default. In order to make the special symbols of the Sun 39 keyboards driven by sunkbd(4) work under X these now have 40 to be configured the same way as Sun USB keyboards driven 41 by ukbd(4) (which also does AT keyboard emulation), f.e.: 42 43 Option "XkbLayout" "us" 44 Option "XkbRules" "xorg" 45 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 46 4720071024: 48 It has been decided that it is desirable to provide ABI 49 backwards compatibility to the FreeBSD 4/5/6 versions of the 50 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 51 broken with the introduction of PCI domain support (see the 52 20070930 entry). Unfortunately, this required the ABI of 53 PCIOCGETCONF to be broken again in order to be able to 54 provide backwards compatibility to the old version of that 55 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 56 again. As for prominent ports this affects neither pciutils 57 nor xorg-server this time, the hal port needs to be rebuilt 58 however. 59 6020071020: 61 The misnamed kthread_create() and friends have been renamed 62 to kproc_create() etc. Many of the callers already 63 used kproc_start().. 64 I will return kthread_create() and friends in a while 65 with implementations that actually create threads, not procs. 66 Renaming corresponds with version 800002. 67 6820071010: 69 RELENG_7 branched. 70 7120071009: 72 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 73 WITHOUT_LIBTHR are set. 74 7520070930: 76 The PCI code has been made aware of PCI domains. This means that 77 the location strings as used by pciconf(8) etc are now in the 78 following format: pci<domain>:<bus>:<device>[:<function>]. It 79 also means that consumers of <sys/pciio.h> potentially need to 80 be recompiled; this includes the hal and xorg-server ports. 81 8220070928: 83 The caching daemon (cached) was renamed to nscd. nscd.conf 84 configuration file should be used instead of cached.conf and 85 nscd_enable, nscd_pidfile and nscd_flags options should be used 86 instead of cached_enable, cached_pidfile and cached_flags in 87 rc.conf. 88 8920070921: 90 The getfacl(1) utility now prints owning user and group name 91 instead of owning uid and gid in the three line comment header. 92 This is the same behavior as getfacl(1) on Solaris and Linux. 93 9420070704: 95 The new IPsec code is now compiled in using the IPSEC option. The 96 IPSEC option now requires "device crypto" be defined in your kernel 97 configuration. The FAST_IPSEC kernel option is now deprecated. 98 9920070702: 100 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 101 note the changed syntax - keep state is now on by default. Also 102 note the fact that ftp-proxy(8) has been changed from bottom up and 103 has been moved from libexec to usr/sbin. Changes in the ALTQ 104 handling also affect users of IPFW's ALTQ capabilities. 105 10620070701: 107 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 108 only IPsec supported by FreeBSD. The new IPsec stack 109 supports both IPv4 and IPv6. The kernel option will change 110 after the code changes have settled in. For now the kernel 111 option IPSEC is deprecated and FAST_IPSEC is the only option, that 112 will change after some settling time. 113 11420070701: 115 The wicontrol(8) utility has been removed from the base system. wi(4) 116 cards should be configured using ifconfig(8), see the man page for more 117 information. 118 11920070612: 120 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 121 instead of the nve(4) driver. Please update your configuration 122 accordingly. 123 12420070612: 125 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 126 database if it is missing or older than the aliases file. If 127 desired, set the new rc.conf option sendmail_rebuild_aliases 128 to "YES" to restore that functionality. 129 13020070612: 131 The IPv4 multicast socket code has been considerably modified, and 132 moved to the file sys/netinet/in_mcast.c. Initial support for the 133 RFC 3678 Source-Specific Multicast Socket API has been added to 134 the IPv4 network stack. 135 136 Strict multicast and broadcast reception is now the default for 137 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 138 has now been removed. 139 140 The RFC 1724 hack for interface selection has been removed; the use 141 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 142 been added to replace it. Consumers such as routed will soon be 143 updated to reflect this. 144 145 These changes affect users who are running routed(8) or rdisc(8) 146 from the FreeBSD base system on point-to-point or unnumbered 147 interfaces. 148 14920070610: 150 The net80211 layer has changed significantly and all wireless 151 drivers that depend on it need to be recompiled. Further these 152 changes require that any program that interacts with the wireless 153 support in the kernel be recompiled; this includes: ifconfig, 154 wpa_supplicant, hostapd, and wlanstats. Users must also, for 155 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 156 if they use modules for wireless support. These modules implement 157 scanning support for station and ap modes, respectively. Failure 158 to load the appropriate module before marking a wireless interface 159 up will result in a message to the console and the device not 160 operating properly. 161 16220070610: 163 The pam_nologin(8) module ceases to provide an authentication 164 function and starts providing an account management function. 165 Consequent changes to /etc/pam.d should be brought in using 166 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 167 need manual editing as follows. Locate this line (or similar): 168 169 auth required pam_nologin.so no_warn 170 171 and change it according to this example: 172 173 account required pam_nologin.so no_warn 174 175 That is, the first word needs to be changed from "auth" to 176 "account". The new line can be moved to the account section 177 within the file for clarity. Not updating pam.conf(5) files 178 will result in nologin(5) ignored by the respective services. 179 18020070529: 181 The ether_ioctl() function has been synchronized with ioctl(2) 182 and ifnet.if_ioctl. Due to that, the size of one of its arguments 183 has changed on 64-bit architectures. All kernel modules using 184 ether_ioctl() need to be rebuilt on such architectures. 185 18620070516: 187 Improved INCLUDE_CONFIG_FILE support has been introduced to the 188 config(8) utility. In order to take advantage of this new 189 functionality, you are expected to recompile and install 190 src/usr.sbin/config. If you don't rebuild config(8), and your 191 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 192 build will be broken because of a missing "kernconfstring" 193 symbol. 194 19520070513: 196 Symbol versioning is enabled by default. To disable it, use 197 option WITHOUT_SYMVER. It is not advisable to attempt to 198 disable symbol versioning once it is enabled; your installworld 199 will break because a symbol version-less libc will get installed 200 before the install tools. As a result, the old install tools, 201 which previously had symbol dependencies to FBSD_1.0, will fail 202 because the freshly installed libc will not have them. 203 204 The default threading library (providing "libpthread") has been 205 changed to libthr. If you wish to have libkse as your default, 206 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 207 20820070423: 209 The ABI breakage in sendmail(8)'s libmilter has been repaired 210 so it is no longer necessary to recompile mail filters (aka, 211 milters). If you recompiled mail filters after the 20070408 212 note, it is not necessary to recompile them again. 213 21420070417: 215 The new trunk(4) driver has been renamed to lagg(4) as it better 216 reflects its purpose. ifconfig will need to be recompiled. 217 21820070408: 219 sendmail(8) has been updated to version 8.14.1. Mail filters 220 (aka, milters) compiled against the libmilter included in the 221 base operating system should be recompiled. 222 22320070302: 224 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 225 In order to use them one must agree to the respective LICENSE in 226 share/doc/legal and define legal.intel_<name>.license_ack=1 via 227 loader.conf(5) or kenv(1). Make sure to deinstall the now 228 deprecated modules from the respective firmware ports. 229 23020070228: 231 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 232 were removed from FreeBSD's libc. These originally came from INRIA 233 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 234 deprecated in previous releases. 235 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 236 replace it as a more portable (and re-entrant) API. 237 23820070224: 239 To support interrupt filtering a modification to the newbus API 240 has occurred, ABI was broken and __FreeBSD_version was bumped 241 to 700031. Please make sure that your kernel and modules are in 242 sync. For more info: 243 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 244 24520070224: 246 The IPv6 multicast forwarding code may now be loaded into GENERIC 247 kernels by loading the ip_mroute.ko module. This is built into the 248 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 249 set; see src.conf(5) for more information. 250 25120070214: 252 The output of netstat -r has changed. Without -n, we now only 253 print a "network name" without the prefix length if the network 254 address and mask exactly match a Class A/B/C network, and an entry 255 exists in the nsswitch "networks" map. 256 With -n, we print the full unabbreviated CIDR network prefix in 257 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 258 This change is in preparation for changes such as equal-cost 259 multipath, and to more generally assist operational deployment 260 of FreeBSD as a modern IPv4 router. 261 26220070210: 263 PIM has been turned on by default in the IPv4 multicast 264 routing code. The kernel option 'PIM' has now been removed. 265 PIM is now built by default if option 'MROUTING' is specified. 266 It may now be loaded into GENERIC kernels by loading the 267 ip_mroute.ko module. 268 26920070207: 270 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 271 has been removed. Its functionality may be achieved by explicitly 272 configuring gif(4) interfaces and using the 'phyint' keyword in 273 mrouted.conf. 274 XORP does not support source-routed IPv4 multicast tunnels nor the 275 integrated IPIP tunneling, therefore it is not affected by this 276 change. The __FreeBSD_version macro has been bumped to 700030. 277 27820061221: 279 Support for PCI Message Signalled Interrupts has been 280 re-enabled in the bge driver, only for those chips which are 281 believed to support it properly. If there are any problems, 282 MSI can be disabled completely by setting the 283 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 284 in the loader. 285 28620061214: 287 Support for PCI Message Signalled Interrupts has been 288 disabled again in the bge driver. Many revisions of the 289 hardware fail to support it properly. Support can be 290 re-enabled by removing the #define of BGE_DISABLE_MSI in 291 "src/sys/dev/bge/if_bge.c". 292 29320061214: 294 Support for PCI Message Signalled Interrupts has been added 295 to the bge driver. If there are any problems, MSI can be 296 disabled completely by setting the 'hw.pci.enable_msi' and 297 'hw.pci.enable_msix' tunables to 0 in the loader. 298 29920061205: 300 The removal of several facets of the experimental Threading 301 system from the kernel means that the proc and thread structures 302 have changed quite a bit. I suggest all kernel modules that might 303 reference these structures be recompiled.. Especially the 304 linux module. 305 30620061126: 307 Sound infrastructure has been updated with various fixes and 308 improvements. Most of the changes are pretty much transparent, 309 with exceptions of followings: 310 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 311 moved to their own dev sysctl nodes, for example: 312 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 313 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 314 own chardev in the form of "dsp%d.<function>%d", where <function> 315 is p = playback, r = record and v = virtual, respectively. Users 316 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 317 This does not affect those who are using "/dev/dsp". 318 31920061122: 320 The following binaries have been disconnected from the build: 321 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 322 and mount_std. The functionality of these programs has been 323 moved into the mount program. For example, to mount a devfs 324 filesystem, instead of using mount_devfs, use: "mount -t devfs". 325 This does not affect entries in /etc/fstab, since entries in 326 /etc/fstab are always processed with "mount -t fstype". 327 32820061113: 329 Support for PCI Message Signalled Interrupts on i386 and amd64 330 has been added to the kernel and various drivers will soon be 331 updated to use MSI when it is available. If there are any problems, 332 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 333 and 'hw.pci.enable_msix' tunables to 0 in the loader. 334 33520061110: 336 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 337 The lockmgr object layout has been changed as a result of having 338 a lock_object embedded in it. As a consequence all file system 339 kernel modules must be re-compiled. The mutex profiling man page 340 has not yet been updated to reflect this change. 341 34220061026: 343 KSE in the kernel has now been made optional and turned on by 344 default. Use 'nooption KSE' in your kernel config to turn it 345 off. All kernel modules *must* be recompiled after this change. 346 There-after, modules from a KSE kernel should be compatible with 347 modules from a NOKSE kernel due to the temporary padding fields 348 added to 'struct proc'. 349 35020060929: 351 mrouted and its utilities have been removed from the base system. 352 35320060927: 354 Some ioctl(2) command codes have changed. Full backward ABI 355 compatibility is provided if the "options COMPAT_FREEBSD6" is 356 present in the kernel configuration file. Make sure to add 357 this option to your kernel config file, or recompile X.Org 358 and the rest of ports; otherwise they may refuse to work. 359 36020060924: 361 tcpslice has been removed from the base system. 362 36320060913: 364 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 365 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 366 systat needs to be rebuilt. 367 36820060903: 369 libpcap updated to v0.9.4 and tcpdump to v3.9.4 370 37120060816: 372 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 373 for IPFIREWALL_FORWARD is now as it was before when it was first 374 committed and for years after. The behaviour is now ON. 375 37620060725: 377 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 378 Now it can decrypt files created from different architectures. 379 Unfortunately, it is no longer able to decrypt a cipher text 380 generated with an older version on 64 bit architectures. 381 If you have such a file, you need old utility to decrypt it. 382 38320060709: 384 The interface version of the i4b kernel part has changed. So 385 after updating the kernel sources and compiling a new kernel, 386 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 387 be rebuilt, and vice versa. 388 38920060627: 390 The XBOX kernel now defaults to the nfe(4) driver instead of 391 the nve(4) driver. Please update your configuration 392 accordingly. 393 39420060514: 395 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 396 PCnet family of NICs has been removed. The new le(4) driver serves 397 as an equivalent but cross-platform replacement with the pcn(4) 398 driver still providing performance-optimized support for the subset 399 of AMD Am79C971 PCnet-FAST and greater chips as before. 400 40120060511: 402 The machdep.* sysctls and the adjkerntz utility have been 403 modified a bit. The new adjkerntz utility uses the new 404 sysctl names and sysctlbyname() calls, so it may be impossible 405 to run an old /sbin/adjkerntz utility in single-user mode 406 with a new kernel. Replace the `adjkerntz -i' step before 407 `make installworld' with: 408 409 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 410 411 and proceed as usual with the rest of the installworld-stage 412 steps. Otherwise, you risk installing binaries with their 413 timestamp set several hours in the future, especially if 414 you are running with local time set to GMT+X hours. 415 41620060412: 417 The ip6fw utility has been removed. The behavior provided by 418 ip6fw has been in ipfw2 for a good while and the rc.d scripts 419 have been updated to deal with it. There are some rules that 420 might not migrate cleanly. Use rc.firewall6 as a template to 421 rewrite rules. 422 42320060428: 424 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 425 attachments have been removed. Make sure to configure scc(4) 426 on sparc64. Note also that by default puc(4) will use uart(4) 427 and not sio(4) for serial ports because interrupt handling has 428 been optimized for multi-port serial cards and only uart(4) 429 implements the interface to support it. 430 43120060330: 432 The scc(4) driver replaces puc(4) for Serial Communications 433 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 434 Z8530. On sparc64, it is advised to add scc(4) to the kernel 435 configuration to make sure that the serial ports remain 436 functional. 437 43820060317: 439 Most world/kernel related NO_* build options changed names. 440 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 441 after FreeBSD ports) and should be set in /etc/src.conf 442 (the src.conf(5) manpage is provided). Full backwards 443 compatibility is maintained for the time being though it's 444 highly recommended to start moving old options out of the 445 system-wide /etc/make.conf file into the new /etc/src.conf 446 while also properly renaming them. More conversions will 447 likely follow. Posting to current@: 448 449 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 450 45120060305: 452 The NETSMBCRYPTO kernel option has been retired because its 453 functionality is always included in NETSMB and smbfs.ko now. 454 45520060303: 456 The TDFX_LINUX kernel option was retired and replaced by the 457 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 458 kernel module. Loading it alone should suffice to get 3dfx support 459 for Linux apps because it will pull in 3dfx.ko and linux.ko through 460 its dependencies. 461 46220060204: 463 The 'audit' group was added to support the new auditing functionality 464 in the base system. Be sure to follow the directions for updating, 465 including the requirement to run mergemaster -p. 466 46720060201: 468 The kernel ABI to file system modules was changed on i386. 469 Please make sure that your kernel and modules are in sync. 470 47120060118: 472 This actually occured some time ago, but installing the kernel 473 now also installs a bunch of symbol files for the kernel modules. 474 This increases the size of /boot/kernel to about 67Mbytes. You 475 will need twice this if you will eventually back this up to kernel.old 476 on your next install. 477 If you have a shortage of room in your root partition, you should add 478 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 479 to your /etc/make.conf. 480 48120060113: 482 libc's malloc implementation has been replaced. This change has the 483 potential to uncover application bugs that previously went unnoticed. 484 See the malloc(3) manual page for more details. 485 48620060112: 487 The generic netgraph(4) cookie has been changed. If you upgrade 488 kernel passing this point, you also need to upgrade userland 489 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 490 49120060106: 492 si(4)'s device files now contain the unit number. 493 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 494 49520060106: 496 The kernel ABI was mostly destroyed due to a change in the size 497 of struct lock_object which is nested in other structures such 498 as mutexes which are nested in all sorts of other structures. 499 Make sure your kernel and modules are in sync. 500 50120051231: 502 The page coloring algorithm in the VM subsystem was converted 503 from tuning with kernel options to autotuning. Please remove 504 any PQ_* option except PQ_NOOPT from your kernel config. 505 50620051211: 507 The net80211-related tools in the tools/tools/ath directory 508 have been moved to tools/tools/net80211 and renamed with a 509 "wlan" prefix. Scripts that use them should be adjusted 510 accordingly. 511 51220051202: 513 Scripts in the local_startup directories (as defined in 514 /etc/defaults/rc.conf) that have the new rc.d semantics will 515 now be run as part of the base system rcorder. If there are 516 errors or problems with one of these local scripts, it could 517 cause boot problems. If you encounter such problems, boot in 518 single user mode, remove that script from the */rc.d directory. 519 Please report the problem to the port's maintainer, and the 520 freebsd-ports@freebsd.org mailing list. 521 52220051129: 523 The nodev mount option was deprecated in RELENG_6 (where it 524 was a no-op), and is now unsupported. If you have nodev or dev listed 525 in /etc/fstab, remove it, otherwise it will result in a mount error. 526 52720051129: 528 ABI between ipfw(4) and ipfw(8) has been changed. You need 529 to rebuild ipfw(8) when rebuilding kernel. 530 53120051108: 532 rp(4)'s device files now contain the unit number. 533 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 534 53520051029: 536 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 537 Its /etc/rc.conf.d configuration file has been `ppp' from 538 the beginning, and hence there is no need to touch it. 539 54020051014: 541 Now most modules get their build-time options from the kernel 542 configuration file. A few modules still have fixed options 543 due to their non-conformant implementation, but they will be 544 corrected eventually. You may need to review the options of 545 the modules in use, explicitly specify the non-default options 546 in the kernel configuration file, and rebuild the kernel and 547 modules afterwards. 548 54920051001: 550 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 551 to turn polling(4) on your interfaces. 552 55320050927: 554 The old bridge(4) implementation was retired. The new 555 if_bridge(4) serves as a full functional replacement. 556 55720050722: 558 The ai_addrlen of a struct addrinfo was changed to a socklen_t 559 to conform to POSIX-2001. This change broke an ABI 560 compatibility on 64 bit architecture. You have to recompile 561 userland programs that use getaddrinfo(3) on 64 bit 562 architecture. 563 56420050711: 565 RELENG_6 branched here. 566 56720050629: 568 The pccard_ifconfig rc.conf variable has been removed and a new 569 variable, ifconfig_DEFAULT has been introduced. Unlike 570 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 571 do not have ifconfig_ifn entries rather than just those in 572 removable_interfaces. 573 57420050616: 575 Some previous versions of PAM have permitted the use of 576 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 577 to third party PAM modules in /usr/local/lib. A change has been 578 made to require the use of absolute paths in order to avoid 579 ambiguity and dependence on library path configuration, which may 580 affect existing configurations. 581 58220050610: 583 Major changes to network interface API. All drivers must be 584 recompiled. Drivers not in the base system will need to be 585 updated to the new APIs. 586 58720050609: 588 Changes were made to kinfo_proc in sys/user.h. Please recompile 589 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 590 will not behave correctly. 591 592 The API and ABI for hwpmc(4) have changed with the addition 593 of sampling support. Please recompile lib/libpmc(3) and 594 usr.sbin/{pmcstat,pmccontrol}. 595 59620050606: 597 The OpenBSD dhclient was imported in place of the ISC dhclient 598 and the network interface configuration scripts were updated 599 accordingly. If you use DHCP to configure your interfaces, you 600 must now run devd. Also, DNS updating was lost so you will need 601 to find a workaround if you use this feature. 602 603 The '_dhcp' user was added to support the OpenBSD dhclient. Be 604 sure to run mergemaster -p (like you are supposed to do every time 605 anyway). 606 60720050605: 608 if_bridge was added to the tree. This has changed struct ifnet. 609 Please recompile userland and all network related modules. 610 61120050603: 612 The n_net of a struct netent was changed to an uint32_t, and 613 1st argument of getnetbyaddr() was changed to an uint32_t, to 614 conform to POSIX-2001. These changes broke an ABI 615 compatibility on 64 bit architecture. With these changes, 616 shlib major of libpcap was bumped. You have to recompile 617 userland programs that use getnetbyaddr(3), getnetbyname(3), 618 getnetent(3) and/or libpcap on 64 bit architecture. 619 62020050528: 621 Kernel parsing of extra options on '#!' first lines of shell 622 scripts has changed. Lines with multiple options likely will 623 fail after this date. For full details, please see 624 http://people.freebsd.org/~gad/Updating-20050528.txt 625 62620050503: 627 The packet filter (pf) code has been updated to OpenBSD 3.7 628 Please note the changed anchor syntax and the fact that 629 authpf(8) now needs a mounted fdescfs(5) to function. 630 63120050415: 632 The NO_MIXED_MODE kernel option has been removed from the i386 633 amd64 platforms as its use has been superceded by the new local 634 APIC timer code. Any kernel config files containing this option 635 should be updated. 636 63720050227: 638 The on-disk format of LC_CTYPE files was changed to be machine 639 independent. Please make sure NOT to use NO_CLEAN buildworld 640 when crossing this point. Crossing this point also requires 641 recompile or reinstall of all locale depended packages. 642 64320050225: 644 The ifi_epoch member of struct if_data has been changed to 645 contain the uptime at which the interface was created or the 646 statistics zeroed rather then the wall clock time because 647 wallclock time may go backwards. This should have no impact 648 unless an snmp implementation is using this value (I know of 649 none at this point.) 650 65120050224: 652 The acpi_perf and acpi_throttle drivers are now part of the 653 acpi(4) main module. They are no longer built separately. 654 65520050223: 656 The layout of struct image_params has changed. You have to 657 recompile all compatibility modules (linux, svr4, etc) for use 658 with the new kernel. 659 66020050223: 661 The p4tcc driver has been merged into cpufreq(4). This makes 662 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 663 compile in "device cpufreq" to restore this functionality. 664 66520050220: 666 The responsibility of recomputing the file system summary of 667 a SoftUpdates-enabled dirty volume has been transferred to the 668 background fsck. A rebuild of fsck(8) utility is recommended 669 if you have updated the kernel. 670 671 To get the old behavior (recompute file system summary at mount 672 time), you can set vfs.ffs.compute_summary_at_mount=1 before 673 mounting the new volume. 674 67520050206: 676 The cpufreq import is complete. As part of this, the sysctls for 677 acpi(4) throttling have been removed. The power_profile script 678 has been updated, so you can use performance/economy_cpu_freq in 679 rc.conf(5) to set AC on/offline cpu frequencies. 680 68120050206: 682 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 683 requires recompiling libnetgraph and userland netgraph utilities. 684 68520050114: 686 Support for abbreviated forms of a number of ipfw options is 687 now deprecated. Warnings are printed to stderr indicating the 688 correct full form when a match occurs. Some abbreviations may 689 be supported at a later date based on user feedback. To be 690 considered for support, abbreviations must be in use prior to 691 this commit and unlikely to be confused with current key words. 692 69320041221: 694 By a popular demand, a lot of NOFOO options were renamed 695 to NO_FOO (see bsd.compat.mk for a full list). The old 696 spellings are still supported, but will cause annoying 697 warnings on stderr. Make sure you upgrade properly (see 698 the COMMON ITEMS: section later in this file). 699 70020041219: 701 Auto-loading of ancillary wlan modules such as wlan_wep has 702 been temporarily disabled; you need to statically configure 703 the modules you need into your kernel or explicitly load them 704 prior to use. Specifically, if you intend to use WEP encryption 705 with an 802.11 device load/configure wlan_wep; if you want to 706 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 707 and wlan_xauth as required. 708 70920041213: 710 The behaviour of ppp(8) has changed slightly. If lqr is enabled 711 (``enable lqr''), older versions would revert to LCP ECHO mode on 712 negotiation failure. Now, ``enable echo'' is required for this 713 behaviour. The ppp version number has been bumped to 3.4.2 to 714 reflect the change. 715 71620041201: 717 The wlan support has been updated to split the crypto support 718 into separate modules. For static WEP you must configure the 719 wlan_wep module in your system or build and install the module 720 in place where it can be loaded (the kernel will auto-load 721 the module when a wep key is configured). 722 72320041201: 724 The ath driver has been updated to split the tx rate control 725 algorithm into a separate module. You need to include either 726 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 727 72820041116: 729 Support for systems with an 80386 CPU has been removed. Please 730 use FreeBSD 5.x or earlier on systems with an 80386. 731 73220041110: 733 We have had a hack which would mount the root filesystem 734 R/W if the device were named 'md*'. As part of the vnode 735 work I'm doing I have had to remove this hack. People 736 building systems which use preloaded MD root filesystems 737 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 738 their /etc/rc scripts. 739 74020041104: 741 FreeBSD 5.3 shipped here. 742 74320041102: 744 The size of struct tcpcb has changed again due to the removal 745 of RFC1644 T/TCP. You have to recompile userland programs that 746 read kmem for tcp sockets directly (netstat, sockstat, etc.) 747 74820041022: 749 The size of struct tcpcb has changed. You have to recompile 750 userland programs that read kmem for tcp sockets directly 751 (netstat, sockstat, etc.) 752 75320041016: 754 RELENG_5 branched here. For older entries, please see updating 755 in the RELENG_5 branch. 756 757COMMON ITEMS: 758 759 General Notes 760 ------------- 761 Avoid using make -j when upgrading. From time to time in the 762 past there have been problems using -j with buildworld and/or 763 installworld. This is especially true when upgrading between 764 "distant" versions (eg one that cross a major release boundary 765 or several minor releases, or when several months have passed 766 on the -current branch). 767 768 Sometimes, obscure build problems are the result of environment 769 poisoning. This can happen because the make utility reads its 770 environment when searching for values for global variables. 771 To run your build attempts in an "environmental clean room", 772 prefix all make commands with 'env -i '. See the env(1) manual 773 page for more details. 774 775 When upgrading from one major version to another it is generally 776 best to upgrade to the latest code in the currently installed branch 777 first, then do an upgrade to the new branch. This is the best-tested 778 upgrade path, and has the highest probability of being successful. 779 Please try this approach before reporting problems with a major 780 version upgrade. 781 782 To build a kernel 783 ----------------- 784 If you are updating from a prior version of FreeBSD (even one just 785 a few days old), you should follow this procedure. It is the most 786 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 787 788 make kernel-toolchain 789 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 790 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 791 792 To test a kernel once 793 --------------------- 794 If you just want to boot a kernel once (because you are not sure 795 if it works, or if you want to boot a known bad kernel to provide 796 debugging information) run 797 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 798 nextboot -k testkernel 799 800 To just build a kernel when you know that it won't mess you up 801 -------------------------------------------------------------- 802 This assumes you are already running a 5.X system. Replace 803 ${arch} with the architecture of your machine (e.g. "i386", 804 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 805 806 cd src/sys/${arch}/conf 807 config KERNEL_NAME_HERE 808 cd ../compile/KERNEL_NAME_HERE 809 make depend 810 make 811 make install 812 813 If this fails, go to the "To build a kernel" section. 814 815 To rebuild everything and install it on the current system. 816 ----------------------------------------------------------- 817 # Note: sometimes if you are running current you gotta do more than 818 # is listed here if you are upgrading from a really old current. 819 820 <make sure you have good level 0 dumps> 821 make buildworld 822 make kernel KERNCONF=YOUR_KERNEL_HERE 823 [1] 824 <reboot in single user> [3] 825 mergemaster -p [5] 826 make installworld 827 make delete-old 828 mergemaster [4] 829 <reboot> 830 831 832 To cross-install current onto a separate partition 833 -------------------------------------------------- 834 # In this approach we use a separate partition to hold 835 # current's root, 'usr', and 'var' directories. A partition 836 # holding "/", "/usr" and "/var" should be about 2GB in 837 # size. 838 839 <make sure you have good level 0 dumps> 840 <boot into -stable> 841 make buildworld 842 make buildkernel KERNCONF=YOUR_KERNEL_HERE 843 <maybe newfs current's root partition> 844 <mount current's root partition on directory ${CURRENT_ROOT}> 845 make installworld DESTDIR=${CURRENT_ROOT} 846 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 847 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 848 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 849 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 850 <reboot into current> 851 <do a "native" rebuild/install as described in the previous section> 852 <maybe install compatibility libraries from src/lib/compat> 853 <reboot> 854 855 856 To upgrade in-place from 5.x-stable to current 857 ---------------------------------------------- 858 <make sure you have good level 0 dumps> 859 make buildworld [9] 860 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 861 [1] 862 <reboot in single user> [3] 863 mergemaster -p [5] 864 make installworld 865 make delete-old 866 mergemaster -i [4] 867 <reboot> 868 869 Make sure that you've read the UPDATING file to understand the 870 tweaks to various things you need. At this point in the life 871 cycle of current, things change often and you are on your own 872 to cope. The defaults can also change, so please read ALL of 873 the UPDATING entries. 874 875 Also, if you are tracking -current, you must be subscribed to 876 freebsd-current@freebsd.org. Make sure that before you update 877 your sources that you have read and understood all the recent 878 messages there. If in doubt, please track -stable which has 879 much fewer pitfalls. 880 881 [1] If you have third party modules, such as vmware, you 882 should disable them at this point so they don't crash your 883 system on reboot. 884 885 [3] From the bootblocks, boot -s, and then do 886 fsck -p 887 mount -u / 888 mount -a 889 cd src 890 adjkerntz -i # if CMOS is wall time 891 Also, when doing a major release upgrade, it is required that 892 you boot into single user mode to do the installworld. 893 894 [4] Note: This step is non-optional. Failure to do this step 895 can result in a significant reduction in the functionality of the 896 system. Attempting to do it by hand is not recommended and those 897 that pursue this avenue should read this file carefully, as well 898 as the archives of freebsd-current and freebsd-hackers mailing lists 899 for potential gotchas. 900 901 [5] Usually this step is a noop. However, from time to time 902 you may need to do this if you get unknown user in the following 903 step. It never hurts to do it all the time. You may need to 904 install a new mergemaster (cd src/usr.sbin/mergemaster && make 905 install) after the buildworld before this step if you last updated 906 from current before 20020224 or from -stable before 20020408. 907 908 [8] In order to have a kernel that can run the 4.x binaries 909 needed to do an installworld, you must include the COMPAT_FREEBSD4 910 option in your kernel. Failure to do so may leave you with a system 911 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 912 is required to run the 5.x binaries on more recent kernels. 913 914 Make sure that you merge any new devices from GENERIC since the 915 last time you updated your kernel config file. 916 917 [9] When checking out sources, you must include the -P flag to have 918 cvs prune empty directories. 919 920 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 921 "?=" instead of the "=" assignment operator, so that buildworld can 922 override the CPUTYPE if it needs to. 923 924 MAKEOBJDIRPREFIX must be defined in an environment variable, and 925 not on the command line, or in /etc/make.conf. buildworld will 926 warn if it is improperly defined. 927FORMAT: 928 929This file contains a list, in reverse chronological order, of major 930breakages in tracking -current. Not all things will be listed here, 931and it only starts on October 16, 2004. Updating files can found in 932previous releases if your system is older than this. 933 934Copyright information: 935 936Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 937 938Redistribution, publication, translation and use, with or without 939modification, in full or in part, in any form or format of this 940document are permitted without further permission from the author. 941 942THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 943IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 944WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 945DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 946INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 947(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 948SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 949HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 950STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 951IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 952POSSIBILITY OF SUCH DAMAGE. 953 954If you find this document useful, and you want to, you may buy the 955author a beer. 956 957Contact Warner Losh if you have any questions about your use of 958this document. 959 960$FreeBSD: head/UPDATING 175550 2008-01-21 22:04:37Z imp $ 961