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 2420071128: 25 The ADAPTIVE_GIANT kernel option has been retired because its 26 functionality is the default now. 27 2820071118: 29 The AT keyboard emulation of sunkbd(4) has been turned on 30 by default. In order to make the special symbols of the Sun 31 keyboards driven by sunkbd(4) work under X these now have 32 to be configured the same way as Sun USB keyboards driven 33 by ukbd(4) (which also does AT keyboard emulation), f.e.: 34 35 Option "XkbLayout" "us" 36 Option "XkbRules" "xorg" 37 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 38 3920071024: 40 It has been decided that it is desirable to provide ABI 41 backwards compatibility to the FreeBSD 4/5/6 versions of the 42 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 43 broken with the introduction of PCI domain support (see the 44 20070930 entry). Unfortunately, this required the ABI of 45 PCIOCGETCONF to be broken again in order to be able to 46 provide backwards compatibility to the old version of that 47 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 48 again. As for prominent ports this affects neither pciutils 49 nor xorg-server this time, the hal port needs to be rebuilt 50 however. 51 5220071020: 53 The misnamed kthread_create() and friends have been renamed 54 to kproc_create() etc. Many of the callers already 55 used kproc_start().. 56 I will return kthread_create() and friends in a while 57 with implementations that actually create threads, not procs. 58 Renaming corresponds with version 800002. 59 6020071010: 61 RELENG_7 branched. 62 6320071009: 64 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 65 WITHOUT_LIBTHR are set. 66 6720070930: 68 The PCI code has been made aware of PCI domains. This means that 69 the location strings as used by pciconf(8) etc are now in the 70 following format: pci<domain>:<bus>:<device>[:<function>]. It 71 also means that consumers of <sys/pciio.h> potentially need to 72 be recompiled; this includes the hal and xorg-server ports. 73 7420070928: 75 The caching daemon (cached) was renamed to nscd. nscd.conf 76 configuration file should be used instead of cached.conf and 77 nscd_enable, nscd_pidfile and nscd_flags options should be used 78 instead of cached_enable, cached_pidfile and cached_flags in 79 rc.conf. 80 8120070921: 82 The getfacl(1) utility now prints owning user and group name 83 instead of owning uid and gid in the three line comment header. 84 This is the same behavior as getfacl(1) on Solaris and Linux. 85 8620070704: 87 The new IPsec code is now compiled in using the IPSEC option. The 88 IPSEC option now requires "device crypto" be defined in your kernel 89 configuration. The FAST_IPSEC kernel option is now deprecated. 90 9120070702: 92 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 93 note the changed syntax - keep state is now on by default. Also 94 note the fact that ftp-proxy(8) has been changed from bottom up and 95 has been moved from libexec to usr/sbin. Changes in the ALTQ 96 handling also affect users of IPFW's ALTQ capabilities. 97 9820070701: 99 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 100 only IPsec supported by FreeBSD. The new IPsec stack 101 supports both IPv4 and IPv6. The kernel option will change 102 after the code changes have settled in. For now the kernel 103 option IPSEC is deprecated and FAST_IPSEC is the only option, that 104 will change after some settling time. 105 10620070701: 107 The wicontrol(8) utility has been removed from the base system. wi(4) 108 cards should be configured using ifconfig(8), see the man page for more 109 information. 110 11120070612: 112 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 113 instead of the nve(4) driver. Please update your configuration 114 accordingly. 115 11620070612: 117 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 118 database if it is missing or older than the aliases file. If 119 desired, set the new rc.conf option sendmail_rebuild_aliases 120 to "YES" to restore that functionality. 121 12220070612: 123 The IPv4 multicast socket code has been considerably modified, and 124 moved to the file sys/netinet/in_mcast.c. Initial support for the 125 RFC 3678 Source-Specific Multicast Socket API has been added to 126 the IPv4 network stack. 127 128 Strict multicast and broadcast reception is now the default for 129 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 130 has now been removed. 131 132 The RFC 1724 hack for interface selection has been removed; the use 133 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 134 been added to replace it. Consumers such as routed will soon be 135 updated to reflect this. 136 137 These changes affect users who are running routed(8) or rdisc(8) 138 from the FreeBSD base system on point-to-point or unnumbered 139 interfaces. 140 14120070610: 142 The net80211 layer has changed significantly and all wireless 143 drivers that depend on it need to be recompiled. Further these 144 changes require that any program that interacts with the wireless 145 support in the kernel be recompiled; this includes: ifconfig, 146 wpa_supplicant, hostapd, and wlanstats. Users must also, for 147 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 148 if they use modules for wireless support. These modules implement 149 scanning support for station and ap modes, respectively. Failure 150 to load the appropriate module before marking a wireless interface 151 up will result in a message to the console and the device not 152 operating properly. 153 15420070610: 155 The pam_nologin(8) module ceases to provide an authentication 156 function and starts providing an account management function. 157 Consequent changes to /etc/pam.d should be brought in using 158 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 159 need manual editing as follows. Locate this line (or similar): 160 161 auth required pam_nologin.so no_warn 162 163 and change it according to this example: 164 165 account required pam_nologin.so no_warn 166 167 That is, the first word needs to be changed from "auth" to 168 "account". The new line can be moved to the account section 169 within the file for clarity. Not updating pam.conf(5) files 170 will result in nologin(5) ignored by the respective services. 171 17220070529: 173 The ether_ioctl() function has been synchronized with ioctl(2) 174 and ifnet.if_ioctl. Due to that, the size of one of its arguments 175 has changed on 64-bit architectures. All kernel modules using 176 ether_ioctl() need to be rebuilt on such architectures. 177 17820070516: 179 Improved INCLUDE_CONFIG_FILE support has been introduced to the 180 config(8) utility. In order to take advantage of this new 181 functionality, you are expected to recompile and install 182 src/usr.sbin/config. If you don't rebuild config(8), and your 183 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 184 build will be broken because of a missing "kernconfstring" 185 symbol. 186 18720070513: 188 Symbol versioning is enabled by default. To disable it, use 189 option WITHOUT_SYMVER. It is not advisable to attempt to 190 disable symbol versioning once it is enabled; your installworld 191 will break because a symbol version-less libc will get installed 192 before the install tools. As a result, the old install tools, 193 which previously had symbol dependencies to FBSD_1.0, will fail 194 because the freshly installed libc will not have them. 195 196 The default threading library (providing "libpthread") has been 197 changed to libthr. If you wish to have libkse as your default, 198 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 199 20020070423: 201 The ABI breakage in sendmail(8)'s libmilter has been repaired 202 so it is no longer necessary to recompile mail filters (aka, 203 milters). If you recompiled mail filters after the 20070408 204 note, it is not necessary to recompile them again. 205 20620070417: 207 The new trunk(4) driver has been renamed to lagg(4) as it better 208 reflects its purpose. ifconfig will need to be recompiled. 209 21020070408: 211 sendmail(8) has been updated to version 8.14.1. Mail filters 212 (aka, milters) compiled against the libmilter included in the 213 base operating system should be recompiled. 214 21520070302: 216 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 217 In order to use them one must agree to the respective LICENSE in 218 share/doc/legal and define legal.intel_<name>.license_ack=1 via 219 loader.conf(5) or kenv(1). Make sure to deinstall the now 220 deprecated modules from the respective firmware ports. 221 22220070228: 223 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 224 were removed from FreeBSD's libc. These originally came from INRIA 225 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 226 deprecated in previous releases. 227 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 228 replace it as a more portable (and re-entrant) API. 229 23020070224: 231 To support interrupt filtering a modification to the newbus API 232 has occurred, ABI was broken and __FreeBSD_version was bumped 233 to 700031. Please make sure that your kernel and modules are in 234 sync. For more info: 235 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 236 23720070224: 238 The IPv6 multicast forwarding code may now be loaded into GENERIC 239 kernels by loading the ip_mroute.ko module. This is built into the 240 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 241 set; see src.conf(5) for more information. 242 24320070214: 244 The output of netstat -r has changed. Without -n, we now only 245 print a "network name" without the prefix length if the network 246 address and mask exactly match a Class A/B/C network, and an entry 247 exists in the nsswitch "networks" map. 248 With -n, we print the full unabbreviated CIDR network prefix in 249 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 250 This change is in preparation for changes such as equal-cost 251 multipath, and to more generally assist operational deployment 252 of FreeBSD as a modern IPv4 router. 253 25420070210: 255 PIM has been turned on by default in the IPv4 multicast 256 routing code. The kernel option 'PIM' has now been removed. 257 PIM is now built by default if option 'MROUTING' is specified. 258 It may now be loaded into GENERIC kernels by loading the 259 ip_mroute.ko module. 260 26120070207: 262 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 263 has been removed. Its functionality may be achieved by explicitly 264 configuring gif(4) interfaces and using the 'phyint' keyword in 265 mrouted.conf. 266 XORP does not support source-routed IPv4 multicast tunnels nor the 267 integrated IPIP tunneling, therefore it is not affected by this 268 change. The __FreeBSD_version macro has been bumped to 700030. 269 27020061221: 271 Support for PCI Message Signalled Interrupts has been 272 re-enabled in the bge driver, only for those chips which are 273 believed to support it properly. If there are any problems, 274 MSI can be disabled completely by setting the 275 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 276 in the loader. 277 27820061214: 279 Support for PCI Message Signalled Interrupts has been 280 disabled again in the bge driver. Many revisions of the 281 hardware fail to support it properly. Support can be 282 re-enabled by removing the #define of BGE_DISABLE_MSI in 283 "src/sys/dev/bge/if_bge.c". 284 28520061214: 286 Support for PCI Message Signalled Interrupts has been added 287 to the bge driver. If there are any problems, MSI can be 288 disabled completely by setting the 'hw.pci.enable_msi' and 289 'hw.pci.enable_msix' tunables to 0 in the loader. 290 29120061205: 292 The removal of several facets of the experimental Threading 293 system from the kernel means that the proc and thread structures 294 have changed quite a bit. I suggest all kernel modules that might 295 reference these structures be recompiled.. Especially the 296 linux module. 297 29820061126: 299 Sound infrastructure has been updated with various fixes and 300 improvements. Most of the changes are pretty much transparent, 301 with exceptions of followings: 302 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 303 moved to their own dev sysctl nodes, for example: 304 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 305 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 306 own chardev in the form of "dsp%d.<function>%d", where <function> 307 is p = playback, r = record and v = virtual, respectively. Users 308 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 309 This does not affect those who are using "/dev/dsp". 310 31120061122: 312 The following binaries have been disconnected from the build: 313 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 314 and mount_std. The functionality of these programs has been 315 moved into the mount program. For example, to mount a devfs 316 filesystem, instead of using mount_devfs, use: "mount -t devfs". 317 This does not affect entries in /etc/fstab, since entries in 318 /etc/fstab are always processed with "mount -t fstype". 319 32020061113: 321 Support for PCI Message Signalled Interrupts on i386 and amd64 322 has been added to the kernel and various drivers will soon be 323 updated to use MSI when it is available. If there are any problems, 324 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 325 and 'hw.pci.enable_msix' tunables to 0 in the loader. 326 32720061110: 328 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 329 The lockmgr object layout has been changed as a result of having 330 a lock_object embedded in it. As a consequence all file system 331 kernel modules must be re-compiled. The mutex profiling man page 332 has not yet been updated to reflect this change. 333 33420061026: 335 KSE in the kernel has now been made optional and turned on by 336 default. Use 'nooption KSE' in your kernel config to turn it 337 off. All kernel modules *must* be recompiled after this change. 338 There-after, modules from a KSE kernel should be compatible with 339 modules from a NOKSE kernel due to the temporary padding fields 340 added to 'struct proc'. 341 34220060929: 343 mrouted and its utilities have been removed from the base system. 344 34520060927: 346 Some ioctl(2) command codes have changed. Full backward ABI 347 compatibility is provided if the "options COMPAT_FREEBSD6" is 348 present in the kernel configuration file. Make sure to add 349 this option to your kernel config file, or recompile X.Org 350 and the rest of ports; otherwise they may refuse to work. 351 35220060924: 353 tcpslice has been removed from the base system. 354 35520060913: 356 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 357 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 358 systat needs to be rebuilt. 359 36020060903: 361 libpcap updated to v0.9.4 and tcpdump to v3.9.4 362 36320060816: 364 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 365 for IPFIREWALL_FORWARD is now as it was before when it was first 366 committed and for years after. The behaviour is now ON. 367 36820060725: 369 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 370 Now it can decrypt files created from different architectures. 371 Unfortunately, it is no longer able to decrypt a cipher text 372 generated with an older version on 64 bit architectures. 373 If you have such a file, you need old utility to decrypt it. 374 37520060709: 376 The interface version of the i4b kernel part has changed. So 377 after updating the kernel sources and compiling a new kernel, 378 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 379 be rebuilt, and vice versa. 380 38120060627: 382 The XBOX kernel now defaults to the nfe(4) driver instead of 383 the nve(4) driver. Please update your configuration 384 accordingly. 385 38620060514: 387 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 388 PCnet family of NICs has been removed. The new le(4) driver serves 389 as an equivalent but cross-platform replacement with the pcn(4) 390 driver still providing performance-optimized support for the subset 391 of AMD Am79C971 PCnet-FAST and greater chips as before. 392 39320060511: 394 The machdep.* sysctls and the adjkerntz utility have been 395 modified a bit. The new adjkerntz utility uses the new 396 sysctl names and sysctlbyname() calls, so it may be impossible 397 to run an old /sbin/adjkerntz utility in single-user mode 398 with a new kernel. Replace the `adjkerntz -i' step before 399 `make installworld' with: 400 401 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 402 403 and proceed as usual with the rest of the installworld-stage 404 steps. Otherwise, you risk installing binaries with their 405 timestamp set several hours in the future, especially if 406 you are running with local time set to GMT+X hours. 407 40820060412: 409 The ip6fw utility has been removed. The behavior provided by 410 ip6fw has been in ipfw2 for a good while and the rc.d scripts 411 have been updated to deal with it. There are some rules that 412 might not migrate cleanly. Use rc.firewall6 as a template to 413 rewrite rules. 414 41520060428: 416 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 417 attachments have been removed. Make sure to configure scc(4) 418 on sparc64. Note also that by default puc(4) will use uart(4) 419 and not sio(4) for serial ports because interrupt handling has 420 been optimized for multi-port serial cards and only uart(4) 421 implements the interface to support it. 422 42320060330: 424 The scc(4) driver replaces puc(4) for Serial Communications 425 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 426 Z8530. On sparc64, it is advised to add scc(4) to the kernel 427 configuration to make sure that the serial ports remain 428 functional. 429 43020060317: 431 Most world/kernel related NO_* build options changed names. 432 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 433 after FreeBSD ports) and should be set in /etc/src.conf 434 (the src.conf(5) manpage is provided). Full backwards 435 compatibility is maintained for the time being though it's 436 highly recommended to start moving old options out of the 437 system-wide /etc/make.conf file into the new /etc/src.conf 438 while also properly renaming them. More conversions will 439 likely follow. Posting to current@: 440 441 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 442 44320060305: 444 The NETSMBCRYPTO kernel option has been retired because its 445 functionality is always included in NETSMB and smbfs.ko now. 446 44720060303: 448 The TDFX_LINUX kernel option was retired and replaced by the 449 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 450 kernel module. Loading it alone should suffice to get 3dfx support 451 for Linux apps because it will pull in 3dfx.ko and linux.ko through 452 its dependencies. 453 45420060204: 455 The 'audit' group was added to support the new auditing functionality 456 in the base system. Be sure to follow the directions for updating, 457 including the requirement to run mergemaster -p. 458 45920060201: 460 The kernel ABI to file system modules was changed on i386. 461 Please make sure that your kernel and modules are in sync. 462 46320060118: 464 This actually occured some time ago, but installing the kernel 465 now also installs a bunch of symbol files for the kernel modules. 466 This increases the size of /boot/kernel to about 67Mbytes. You 467 will need twice this if you will eventually back this up to kernel.old 468 on your next install. 469 If you have a shortage of room in your root partition, you should add 470 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 471 to your /etc/make.conf. 472 47320060113: 474 libc's malloc implementation has been replaced. This change has the 475 potential to uncover application bugs that previously went unnoticed. 476 See the malloc(3) manual page for more details. 477 47820060112: 479 The generic netgraph(4) cookie has been changed. If you upgrade 480 kernel passing this point, you also need to upgrade userland 481 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 482 48320060106: 484 si(4)'s device files now contain the unit number. 485 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 486 48720060106: 488 The kernel ABI was mostly destroyed due to a change in the size 489 of struct lock_object which is nested in other structures such 490 as mutexes which are nested in all sorts of other structures. 491 Make sure your kernel and modules are in sync. 492 49320051231: 494 The page coloring algorithm in the VM subsystem was converted 495 from tuning with kernel options to autotuning. Please remove 496 any PQ_* option except PQ_NOOPT from your kernel config. 497 49820051211: 499 The net80211-related tools in the tools/tools/ath directory 500 have been moved to tools/tools/net80211 and renamed with a 501 "wlan" prefix. Scripts that use them should be adjusted 502 accordingly. 503 50420051202: 505 Scripts in the local_startup directories (as defined in 506 /etc/defaults/rc.conf) that have the new rc.d semantics will 507 now be run as part of the base system rcorder. If there are 508 errors or problems with one of these local scripts, it could 509 cause boot problems. If you encounter such problems, boot in 510 single user mode, remove that script from the */rc.d directory. 511 Please report the problem to the port's maintainer, and the 512 freebsd-ports@freebsd.org mailing list. 513 51420051129: 515 The nodev mount option was deprecated in RELENG_6 (where it 516 was a no-op), and is now unsupported. If you have nodev or dev listed 517 in /etc/fstab, remove it, otherwise it will result in a mount error. 518 51920051129: 520 ABI between ipfw(4) and ipfw(8) has been changed. You need 521 to rebuild ipfw(8) when rebuilding kernel. 522 52320051108: 524 rp(4)'s device files now contain the unit number. 525 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 526 52720051029: 528 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 529 Its /etc/rc.conf.d configuration file has been `ppp' from 530 the beginning, and hence there is no need to touch it. 531 53220051014: 533 Now most modules get their build-time options from the kernel 534 configuration file. A few modules still have fixed options 535 due to their non-conformant implementation, but they will be 536 corrected eventually. You may need to review the options of 537 the modules in use, explicitly specify the non-default options 538 in the kernel configuration file, and rebuild the kernel and 539 modules afterwards. 540 54120051001: 542 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 543 to turn polling(4) on your interfaces. 544 54520050927: 546 The old bridge(4) implementation was retired. The new 547 if_bridge(4) serves as a full functional replacement. 548 54920050722: 550 The ai_addrlen of a struct addrinfo was changed to a socklen_t 551 to conform to POSIX-2001. This change broke an ABI 552 compatibility on 64 bit architecture. You have to recompile 553 userland programs that use getaddrinfo(3) on 64 bit 554 architecture. 555 55620050711: 557 RELENG_6 branched here. 558 55920050629: 560 The pccard_ifconfig rc.conf variable has been removed and a new 561 variable, ifconfig_DEFAULT has been introduced. Unlike 562 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 563 do not have ifconfig_ifn entries rather than just those in 564 removable_interfaces. 565 56620050616: 567 Some previous versions of PAM have permitted the use of 568 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 569 to third party PAM modules in /usr/local/lib. A change has been 570 made to require the use of absolute paths in order to avoid 571 ambiguity and dependence on library path configuration, which may 572 affect existing configurations. 573 57420050610: 575 Major changes to network interface API. All drivers must be 576 recompiled. Drivers not in the base system will need to be 577 updated to the new APIs. 578 57920050609: 580 Changes were made to kinfo_proc in sys/user.h. Please recompile 581 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 582 will not behave correctly. 583 584 The API and ABI for hwpmc(4) have changed with the addition 585 of sampling support. Please recompile lib/libpmc(3) and 586 usr.sbin/{pmcstat,pmccontrol}. 587 58820050606: 589 The OpenBSD dhclient was imported in place of the ISC dhclient 590 and the network interface configuration scripts were updated 591 accordingly. If you use DHCP to configure your interfaces, you 592 must now run devd. Also, DNS updating was lost so you will need 593 to find a workaround if you use this feature. 594 595 The '_dhcp' user was added to support the OpenBSD dhclient. Be 596 sure to run mergemaster -p (like you are supposed to do every time 597 anyway). 598 59920050605: 600 if_bridge was added to the tree. This has changed struct ifnet. 601 Please recompile userland and all network related modules. 602 60320050603: 604 The n_net of a struct netent was changed to an uint32_t, and 605 1st argument of getnetbyaddr() was changed to an uint32_t, to 606 conform to POSIX-2001. These changes broke an ABI 607 compatibility on 64 bit architecture. With these changes, 608 shlib major of libpcap was bumped. You have to recompile 609 userland programs that use getnetbyaddr(3), getnetbyname(3), 610 getnetent(3) and/or libpcap on 64 bit architecture. 611 61220050528: 613 Kernel parsing of extra options on '#!' first lines of shell 614 scripts has changed. Lines with multiple options likely will 615 fail after this date. For full details, please see 616 http://people.freebsd.org/~gad/Updating-20050528.txt 617 61820050503: 619 The packet filter (pf) code has been updated to OpenBSD 3.7 620 Please note the changed anchor syntax and the fact that 621 authpf(8) now needs a mounted fdescfs(5) to function. 622 62320050415: 624 The NO_MIXED_MODE kernel option has been removed from the i386 625 amd64 platforms as its use has been superceded by the new local 626 APIC timer code. Any kernel config files containing this option 627 should be updated. 628 62920050227: 630 The on-disk format of LC_CTYPE files was changed to be machine 631 independent. Please make sure NOT to use NO_CLEAN buildworld 632 when crossing this point. Crossing this point also requires 633 recompile or reinstall of all locale depended packages. 634 63520050225: 636 The ifi_epoch member of struct if_data has been changed to 637 contain the uptime at which the interface was created or the 638 statistics zeroed rather then the wall clock time because 639 wallclock time may go backwards. This should have no impact 640 unless an snmp implementation is using this value (I know of 641 none at this point.) 642 64320050224: 644 The acpi_perf and acpi_throttle drivers are now part of the 645 acpi(4) main module. They are no longer built separately. 646 64720050223: 648 The layout of struct image_params has changed. You have to 649 recompile all compatibility modules (linux, svr4, etc) for use 650 with the new kernel. 651 65220050223: 653 The p4tcc driver has been merged into cpufreq(4). This makes 654 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 655 compile in "device cpufreq" to restore this functionality. 656 65720050220: 658 The responsibility of recomputing the file system summary of 659 a SoftUpdates-enabled dirty volume has been transferred to the 660 background fsck. A rebuild of fsck(8) utility is recommended 661 if you have updated the kernel. 662 663 To get the old behavior (recompute file system summary at mount 664 time), you can set vfs.ffs.compute_summary_at_mount=1 before 665 mounting the new volume. 666 66720050206: 668 The cpufreq import is complete. As part of this, the sysctls for 669 acpi(4) throttling have been removed. The power_profile script 670 has been updated, so you can use performance/economy_cpu_freq in 671 rc.conf(5) to set AC on/offline cpu frequencies. 672 67320050206: 674 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 675 requires recompiling libnetgraph and userland netgraph utilities. 676 67720050114: 678 Support for abbreviated forms of a number of ipfw options is 679 now deprecated. Warnings are printed to stderr indicating the 680 correct full form when a match occurs. Some abbreviations may 681 be supported at a later date based on user feedback. To be 682 considered for support, abbreviations must be in use prior to 683 this commit and unlikely to be confused with current key words. 684 68520041221: 686 By a popular demand, a lot of NOFOO options were renamed 687 to NO_FOO (see bsd.compat.mk for a full list). The old 688 spellings are still supported, but will cause annoying 689 warnings on stderr. Make sure you upgrade properly (see 690 the COMMON ITEMS: section later in this file). 691 69220041219: 693 Auto-loading of ancillary wlan modules such as wlan_wep has 694 been temporarily disabled; you need to statically configure 695 the modules you need into your kernel or explicitly load them 696 prior to use. Specifically, if you intend to use WEP encryption 697 with an 802.11 device load/configure wlan_wep; if you want to 698 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 699 and wlan_xauth as required. 700 70120041213: 702 The behaviour of ppp(8) has changed slightly. If lqr is enabled 703 (``enable lqr''), older versions would revert to LCP ECHO mode on 704 negotiation failure. Now, ``enable echo'' is required for this 705 behaviour. The ppp version number has been bumped to 3.4.2 to 706 reflect the change. 707 70820041201: 709 The wlan support has been updated to split the crypto support 710 into separate modules. For static WEP you must configure the 711 wlan_wep module in your system or build and install the module 712 in place where it can be loaded (the kernel will auto-load 713 the module when a wep key is configured). 714 71520041201: 716 The ath driver has been updated to split the tx rate control 717 algorithm into a separate module. You need to include either 718 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 719 72020041116: 721 Support for systems with an 80386 CPU has been removed. Please 722 use FreeBSD 5.x or earlier on systems with an 80386. 723 72420041110: 725 We have had a hack which would mount the root filesystem 726 R/W if the device were named 'md*'. As part of the vnode 727 work I'm doing I have had to remove this hack. People 728 building systems which use preloaded MD root filesystems 729 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 730 their /etc/rc scripts. 731 73220041104: 733 FreeBSD 5.3 shipped here. 734 73520041102: 736 The size of struct tcpcb has changed again due to the removal 737 of RFC1644 T/TCP. You have to recompile userland programs that 738 read kmem for tcp sockets directly (netstat, sockstat, etc.) 739 74020041022: 741 The size of struct tcpcb has changed. You have to recompile 742 userland programs that read kmem for tcp sockets directly 743 (netstat, sockstat, etc.) 744 74520041016: 746 RELENG_5 branched here. For older entries, please see updating 747 in the RELENG_5 branch. 748 749COMMON ITEMS: 750 751 General Notes 752 ------------- 753 Avoid using make -j when upgrading. From time to time in the 754 past there have been problems using -j with buildworld and/or 755 installworld. This is especially true when upgrading between 756 "distant" versions (eg one that cross a major release boundary 757 or several minor releases, or when several months have passed 758 on the -current branch). 759 760 Sometimes, obscure build problems are the result of environment 761 poisoning. This can happen because the make utility reads its 762 environment when searching for values for global variables. 763 To run your build attempts in an "environmental clean room", 764 prefix all make commands with 'env -i '. See the env(1) manual 765 page for more details. 766 767 When upgrading from one major version to another it is generally 768 best to upgrade to the latest code in the currently installed branch 769 first, then do an upgrade to the new branch. This is the best-tested 770 upgrade path, and has the highest probability of being successful. 771 Please try this approach before reporting problems with a major 772 version upgrade. 773 774 To build a kernel 775 ----------------- 776 If you are updating from a prior version of FreeBSD (even one just 777 a few days old), you should follow this procedure. It is the most 778 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 779 780 make kernel-toolchain 781 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 782 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 783 784 To test a kernel once 785 --------------------- 786 If you just want to boot a kernel once (because you are not sure 787 if it works, or if you want to boot a known bad kernel to provide 788 debugging information) run 789 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 790 nextboot -k testkernel 791 792 To just build a kernel when you know that it won't mess you up 793 -------------------------------------------------------------- 794 This assumes you are already running a 5.X system. Replace 795 ${arch} with the architecture of your machine (e.g. "i386", 796 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 797 798 cd src/sys/${arch}/conf 799 config KERNEL_NAME_HERE 800 cd ../compile/KERNEL_NAME_HERE 801 make depend 802 make 803 make install 804 805 If this fails, go to the "To build a kernel" section. 806 807 To rebuild everything and install it on the current system. 808 ----------------------------------------------------------- 809 # Note: sometimes if you are running current you gotta do more than 810 # is listed here if you are upgrading from a really old current. 811 812 <make sure you have good level 0 dumps> 813 make buildworld 814 make kernel KERNCONF=YOUR_KERNEL_HERE 815 [1] 816 <reboot in single user> [3] 817 mergemaster -p [5] 818 make installworld 819 make delete-old 820 mergemaster [4] 821 <reboot> 822 823 824 To cross-install current onto a separate partition 825 -------------------------------------------------- 826 # In this approach we use a separate partition to hold 827 # current's root, 'usr', and 'var' directories. A partition 828 # holding "/", "/usr" and "/var" should be about 2GB in 829 # size. 830 831 <make sure you have good level 0 dumps> 832 <boot into -stable> 833 make buildworld 834 make buildkernel KERNCONF=YOUR_KERNEL_HERE 835 <maybe newfs current's root partition> 836 <mount current's root partition on directory ${CURRENT_ROOT}> 837 make installworld DESTDIR=${CURRENT_ROOT} 838 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 839 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 840 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 841 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 842 <reboot into current> 843 <do a "native" rebuild/install as described in the previous section> 844 <maybe install compatibility libraries from src/lib/compat> 845 <reboot> 846 847 848 To upgrade in-place from 5.x-stable to current 849 ---------------------------------------------- 850 <make sure you have good level 0 dumps> 851 make buildworld [9] 852 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 853 [1] 854 <reboot in single user> [3] 855 mergemaster -p [5] 856 make installworld 857 make delete-old 858 mergemaster -i [4] 859 <reboot> 860 861 Make sure that you've read the UPDATING file to understand the 862 tweaks to various things you need. At this point in the life 863 cycle of current, things change often and you are on your own 864 to cope. The defaults can also change, so please read ALL of 865 the UPDATING entries. 866 867 Also, if you are tracking -current, you must be subscribed to 868 freebsd-current@freebsd.org. Make sure that before you update 869 your sources that you have read and understood all the recent 870 messages there. If in doubt, please track -stable which has 871 much fewer pitfalls. 872 873 [1] If you have third party modules, such as vmware, you 874 should disable them at this point so they don't crash your 875 system on reboot. 876 877 [3] From the bootblocks, boot -s, and then do 878 fsck -p 879 mount -u / 880 mount -a 881 cd src 882 adjkerntz -i # if CMOS is wall time 883 Also, when doing a major release upgrade, it is required that 884 you boot into single user mode to do the installworld. 885 886 [4] Note: This step is non-optional. Failure to do this step 887 can result in a significant reduction in the functionality of the 888 system. Attempting to do it by hand is not recommended and those 889 that pursue this avenue should read this file carefully, as well 890 as the archives of freebsd-current and freebsd-hackers mailing lists 891 for potential gotchas. 892 893 [5] Usually this step is a noop. However, from time to time 894 you may need to do this if you get unknown user in the following 895 step. It never hurts to do it all the time. You may need to 896 install a new mergemaster (cd src/usr.sbin/mergemaster && make 897 install) after the buildworld before this step if you last updated 898 from current before 20020224 or from -stable before 20020408. 899 900 [8] In order to have a kernel that can run the 4.x binaries 901 needed to do an installworld, you must include the COMPAT_FREEBSD4 902 option in your kernel. Failure to do so may leave you with a system 903 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 904 is required to run the 5.x binaries on more recent kernels. 905 906 Make sure that you merge any new devices from GENERIC since the 907 last time you updated your kernel config file. 908 909 [9] When checking out sources, you must include the -P flag to have 910 cvs prune empty directories. 911 912 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 913 "?=" instead of the "=" assignment operator, so that buildworld can 914 override the CPUTYPE if it needs to. 915 916 MAKEOBJDIRPREFIX must be defined in an environment variable, and 917 not on the command line, or in /etc/make.conf. buildworld will 918 warn if it is improperly defined. 919FORMAT: 920 921This file contains a list, in reverse chronological order, of major 922breakages in tracking -current. Not all things will be listed here, 923and it only starts on October 16, 2004. Updating files can found in 924previous releases if your system is older than this. 925 926Copyright information: 927 928Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 929 930Redistribution, publication, translation and use, with or without 931modification, in full or in part, in any form or format of this 932document are permitted without further permission from the author. 933 934THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 935IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 936WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 937DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 938INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 939(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 940SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 941HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 942STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 943IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 944POSSIBILITY OF SUCH DAMAGE. 945 946If you find this document useful, and you want to, you may buy the 947author a beer. 948 949Contact Warner Losh if you have any questions about your use of 950this document. 951 952$FreeBSD$ 953