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 2520080609: 26 The gpt(8) utility has been removed. Use gpart(8) to partition 27 disks instead. 28 2920080603: 30 The version that Linuxulator emulates was changed from 2.4.2 31 to 2.6.16. If you experience any problems with Linux binaries 32 please try to set sysctl compat.linux.osrelease to 2.4.2 and 33 if it fixes the problem contact emulation mailing list. 34 3520080525: 36 ISDN4BSD (I4B) was removed from the src tree. You may need to 37 update a your kernel configuration and remove relevant entries. 38 3920080509: 40 I have checked in code to support multiple routing tables. 41 see the man pages setfib(1) and setfib(2). 42 This is a hopefully backwards compatible version, 43 but to make use of it you need to compile your kernel 44 with options ROUTETABLES=2 (or more up to 16). 45 4620080420: 47 The 802.11 wireless support was redone to enable multi-bss 48 operation on devices that are capable. The underlying device 49 is no longer used directly but instead wlanX devices are 50 cloned with ifconfig. This requires changes to rc.conf files. 51 For example, change: 52 ifconfig_ath0="WPA DHCP" 53 to 54 wlans_ath0=wlan0 55 ifconfig_wlan0="WPA DHCP" 56 see rc.conf(5) for more details. In addition, mergemaster of 57 /etc/rc.d is highly recommended. Simultaneous update of userland 58 and kernel wouldn't hurt either. 59 60 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 61 modules were merged into the base wlan module. All references 62 to these modules (e.g. in kernel config files) must be removed. 63 6420080408: 65 psm(4) has gained write(2) support in native operation level. 66 Arbitrary commands can be written to /dev/psm%d and status can 67 be read back from it. Therefore, an application is responsible 68 for status validation and error recovery. It is a no-op in 69 other operation levels. 70 7120080312: 72 Support for KSE threading has been removed from the kernel. To 73 run legacy applications linked against KSE libmap.conf may 74 be used. The following libmap.conf may be used to ensure 75 compatibility with any prior release: 76 77 libpthread.so.1 libthr.so.1 78 libpthread.so.2 libthr.so.2 79 libkse.so.3 libthr.so.3 80 8120080301: 82 The layout of struct vmspace has changed. This affects libkvm 83 and any executables that link against libkvm and use the 84 kvm_getprocs() function. In particular, but not exclusively, 85 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 86 The effects are minimal, but it's advisable to upgrade world 87 nonetheless. 88 8920080229: 90 The latest em driver no longer has support in it for the 91 82575 adapter, this is now moved to the igb driver. The 92 split was done to make new features that are incompatible 93 with older hardware easier to do. 94 9520080220: 96 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 97 likewise the kernel option is now GEOM_LINUX_LVM. 98 9920080211: 100 The default NFS mount mode has changed from UDP to TCP for 101 increased reliability. If you rely on (insecurely) NFS 102 mounting across a firewall you may need to update your 103 firewall rules. 104 10520080208: 106 Belatedly note the addition of m_collapse for compacting 107 mbuf chains. 108 10920080126: 110 The fts(3) structures have been changed to use adequate 111 integer types for their members and so to be able to cope 112 with huge file trees. The old fts(3) ABI is preserved 113 through symbol versioning in libc, so third-party binaries 114 using fts(3) should still work, although they will not take 115 advantage of the extended types. At the same time, some 116 third-party software might fail to build after this change 117 due to unportable assumptions made in its source code about 118 fts(3) structure members. Such software should be fixed 119 by its vendor or, in the worst case, in the ports tree. 120 FreeBSD_version 800015 marks this change for the unlikely 121 case that a portable fix is impossible. 122 12320080123: 124 To upgrade to -current after this date, you must be running 125 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 126 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 127 12820071128: 129 The ADAPTIVE_GIANT kernel option has been retired because its 130 functionality is the default now. 131 13220071118: 133 The AT keyboard emulation of sunkbd(4) has been turned on 134 by default. In order to make the special symbols of the Sun 135 keyboards driven by sunkbd(4) work under X these now have 136 to be configured the same way as Sun USB keyboards driven 137 by ukbd(4) (which also does AT keyboard emulation), f.e.: 138 139 Option "XkbLayout" "us" 140 Option "XkbRules" "xorg" 141 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 142 14320071024: 144 It has been decided that it is desirable to provide ABI 145 backwards compatibility to the FreeBSD 4/5/6 versions of the 146 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 147 broken with the introduction of PCI domain support (see the 148 20070930 entry). Unfortunately, this required the ABI of 149 PCIOCGETCONF to be broken again in order to be able to 150 provide backwards compatibility to the old version of that 151 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 152 again. As for prominent ports this affects neither pciutils 153 nor xorg-server this time, the hal port needs to be rebuilt 154 however. 155 15620071020: 157 The misnamed kthread_create() and friends have been renamed 158 to kproc_create() etc. Many of the callers already 159 used kproc_start().. 160 I will return kthread_create() and friends in a while 161 with implementations that actually create threads, not procs. 162 Renaming corresponds with version 800002. 163 16420071010: 165 RELENG_7 branched. 166 16720071009: 168 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 169 WITHOUT_LIBTHR are set. 170 17120070930: 172 The PCI code has been made aware of PCI domains. This means that 173 the location strings as used by pciconf(8) etc are now in the 174 following format: pci<domain>:<bus>:<device>[:<function>]. It 175 also means that consumers of <sys/pciio.h> potentially need to 176 be recompiled; this includes the hal and xorg-server ports. 177 17820070928: 179 The caching daemon (cached) was renamed to nscd. nscd.conf 180 configuration file should be used instead of cached.conf and 181 nscd_enable, nscd_pidfile and nscd_flags options should be used 182 instead of cached_enable, cached_pidfile and cached_flags in 183 rc.conf. 184 18520070921: 186 The getfacl(1) utility now prints owning user and group name 187 instead of owning uid and gid in the three line comment header. 188 This is the same behavior as getfacl(1) on Solaris and Linux. 189 19020070704: 191 The new IPsec code is now compiled in using the IPSEC option. The 192 IPSEC option now requires "device crypto" be defined in your kernel 193 configuration. The FAST_IPSEC kernel option is now deprecated. 194 19520070702: 196 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 197 note the changed syntax - keep state is now on by default. Also 198 note the fact that ftp-proxy(8) has been changed from bottom up and 199 has been moved from libexec to usr/sbin. Changes in the ALTQ 200 handling also affect users of IPFW's ALTQ capabilities. 201 20220070701: 203 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 204 only IPsec supported by FreeBSD. The new IPsec stack 205 supports both IPv4 and IPv6. The kernel option will change 206 after the code changes have settled in. For now the kernel 207 option IPSEC is deprecated and FAST_IPSEC is the only option, that 208 will change after some settling time. 209 21020070701: 211 The wicontrol(8) utility has been removed from the base system. wi(4) 212 cards should be configured using ifconfig(8), see the man page for more 213 information. 214 21520070612: 216 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 217 instead of the nve(4) driver. Please update your configuration 218 accordingly. 219 22020070612: 221 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 222 database if it is missing or older than the aliases file. If 223 desired, set the new rc.conf option sendmail_rebuild_aliases 224 to "YES" to restore that functionality. 225 22620070612: 227 The IPv4 multicast socket code has been considerably modified, and 228 moved to the file sys/netinet/in_mcast.c. Initial support for the 229 RFC 3678 Source-Specific Multicast Socket API has been added to 230 the IPv4 network stack. 231 232 Strict multicast and broadcast reception is now the default for 233 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 234 has now been removed. 235 236 The RFC 1724 hack for interface selection has been removed; the use 237 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 238 been added to replace it. Consumers such as routed will soon be 239 updated to reflect this. 240 241 These changes affect users who are running routed(8) or rdisc(8) 242 from the FreeBSD base system on point-to-point or unnumbered 243 interfaces. 244 24520070610: 246 The net80211 layer has changed significantly and all wireless 247 drivers that depend on it need to be recompiled. Further these 248 changes require that any program that interacts with the wireless 249 support in the kernel be recompiled; this includes: ifconfig, 250 wpa_supplicant, hostapd, and wlanstats. Users must also, for 251 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 252 if they use modules for wireless support. These modules implement 253 scanning support for station and ap modes, respectively. Failure 254 to load the appropriate module before marking a wireless interface 255 up will result in a message to the console and the device not 256 operating properly. 257 25820070610: 259 The pam_nologin(8) module ceases to provide an authentication 260 function and starts providing an account management function. 261 Consequent changes to /etc/pam.d should be brought in using 262 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 263 need manual editing as follows. Locate this line (or similar): 264 265 auth required pam_nologin.so no_warn 266 267 and change it according to this example: 268 269 account required pam_nologin.so no_warn 270 271 That is, the first word needs to be changed from "auth" to 272 "account". The new line can be moved to the account section 273 within the file for clarity. Not updating pam.conf(5) files 274 will result in nologin(5) ignored by the respective services. 275 27620070529: 277 The ether_ioctl() function has been synchronized with ioctl(2) 278 and ifnet.if_ioctl. Due to that, the size of one of its arguments 279 has changed on 64-bit architectures. All kernel modules using 280 ether_ioctl() need to be rebuilt on such architectures. 281 28220070516: 283 Improved INCLUDE_CONFIG_FILE support has been introduced to the 284 config(8) utility. In order to take advantage of this new 285 functionality, you are expected to recompile and install 286 src/usr.sbin/config. If you don't rebuild config(8), and your 287 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 288 build will be broken because of a missing "kernconfstring" 289 symbol. 290 29120070513: 292 Symbol versioning is enabled by default. To disable it, use 293 option WITHOUT_SYMVER. It is not advisable to attempt to 294 disable symbol versioning once it is enabled; your installworld 295 will break because a symbol version-less libc will get installed 296 before the install tools. As a result, the old install tools, 297 which previously had symbol dependencies to FBSD_1.0, will fail 298 because the freshly installed libc will not have them. 299 300 The default threading library (providing "libpthread") has been 301 changed to libthr. If you wish to have libkse as your default, 302 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 303 30420070423: 305 The ABI breakage in sendmail(8)'s libmilter has been repaired 306 so it is no longer necessary to recompile mail filters (aka, 307 milters). If you recompiled mail filters after the 20070408 308 note, it is not necessary to recompile them again. 309 31020070417: 311 The new trunk(4) driver has been renamed to lagg(4) as it better 312 reflects its purpose. ifconfig will need to be recompiled. 313 31420070408: 315 sendmail(8) has been updated to version 8.14.1. Mail filters 316 (aka, milters) compiled against the libmilter included in the 317 base operating system should be recompiled. 318 31920070302: 320 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 321 In order to use them one must agree to the respective LICENSE in 322 share/doc/legal and define legal.intel_<name>.license_ack=1 via 323 loader.conf(5) or kenv(1). Make sure to deinstall the now 324 deprecated modules from the respective firmware ports. 325 32620070228: 327 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 328 were removed from FreeBSD's libc. These originally came from INRIA 329 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 330 deprecated in previous releases. 331 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 332 replace it as a more portable (and re-entrant) API. 333 33420070224: 335 To support interrupt filtering a modification to the newbus API 336 has occurred, ABI was broken and __FreeBSD_version was bumped 337 to 700031. Please make sure that your kernel and modules are in 338 sync. For more info: 339 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 340 34120070224: 342 The IPv6 multicast forwarding code may now be loaded into GENERIC 343 kernels by loading the ip_mroute.ko module. This is built into the 344 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 345 set; see src.conf(5) for more information. 346 34720070214: 348 The output of netstat -r has changed. Without -n, we now only 349 print a "network name" without the prefix length if the network 350 address and mask exactly match a Class A/B/C network, and an entry 351 exists in the nsswitch "networks" map. 352 With -n, we print the full unabbreviated CIDR network prefix in 353 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 354 This change is in preparation for changes such as equal-cost 355 multipath, and to more generally assist operational deployment 356 of FreeBSD as a modern IPv4 router. 357 35820070210: 359 PIM has been turned on by default in the IPv4 multicast 360 routing code. The kernel option 'PIM' has now been removed. 361 PIM is now built by default if option 'MROUTING' is specified. 362 It may now be loaded into GENERIC kernels by loading the 363 ip_mroute.ko module. 364 36520070207: 366 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 367 has been removed. Its functionality may be achieved by explicitly 368 configuring gif(4) interfaces and using the 'phyint' keyword in 369 mrouted.conf. 370 XORP does not support source-routed IPv4 multicast tunnels nor the 371 integrated IPIP tunneling, therefore it is not affected by this 372 change. The __FreeBSD_version macro has been bumped to 700030. 373 37420061221: 375 Support for PCI Message Signalled Interrupts has been 376 re-enabled in the bge driver, only for those chips which are 377 believed to support it properly. If there are any problems, 378 MSI can be disabled completely by setting the 379 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 380 in the loader. 381 38220061214: 383 Support for PCI Message Signalled Interrupts has been 384 disabled again in the bge driver. Many revisions of the 385 hardware fail to support it properly. Support can be 386 re-enabled by removing the #define of BGE_DISABLE_MSI in 387 "src/sys/dev/bge/if_bge.c". 388 38920061214: 390 Support for PCI Message Signalled Interrupts has been added 391 to the bge driver. If there are any problems, MSI can be 392 disabled completely by setting the 'hw.pci.enable_msi' and 393 'hw.pci.enable_msix' tunables to 0 in the loader. 394 39520061205: 396 The removal of several facets of the experimental Threading 397 system from the kernel means that the proc and thread structures 398 have changed quite a bit. I suggest all kernel modules that might 399 reference these structures be recompiled.. Especially the 400 linux module. 401 40220061126: 403 Sound infrastructure has been updated with various fixes and 404 improvements. Most of the changes are pretty much transparent, 405 with exceptions of followings: 406 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 407 moved to their own dev sysctl nodes, for example: 408 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 409 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 410 own chardev in the form of "dsp%d.<function>%d", where <function> 411 is p = playback, r = record and v = virtual, respectively. Users 412 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 413 This does not affect those who are using "/dev/dsp". 414 41520061122: 416 The following binaries have been disconnected from the build: 417 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 418 and mount_std. The functionality of these programs has been 419 moved into the mount program. For example, to mount a devfs 420 filesystem, instead of using mount_devfs, use: "mount -t devfs". 421 This does not affect entries in /etc/fstab, since entries in 422 /etc/fstab are always processed with "mount -t fstype". 423 42420061113: 425 Support for PCI Message Signalled Interrupts on i386 and amd64 426 has been added to the kernel and various drivers will soon be 427 updated to use MSI when it is available. If there are any problems, 428 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 429 and 'hw.pci.enable_msix' tunables to 0 in the loader. 430 43120061110: 432 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 433 The lockmgr object layout has been changed as a result of having 434 a lock_object embedded in it. As a consequence all file system 435 kernel modules must be re-compiled. The mutex profiling man page 436 has not yet been updated to reflect this change. 437 43820061026: 439 KSE in the kernel has now been made optional and turned on by 440 default. Use 'nooption KSE' in your kernel config to turn it 441 off. All kernel modules *must* be recompiled after this change. 442 There-after, modules from a KSE kernel should be compatible with 443 modules from a NOKSE kernel due to the temporary padding fields 444 added to 'struct proc'. 445 44620060929: 447 mrouted and its utilities have been removed from the base system. 448 44920060927: 450 Some ioctl(2) command codes have changed. Full backward ABI 451 compatibility is provided if the "options COMPAT_FREEBSD6" is 452 present in the kernel configuration file. Make sure to add 453 this option to your kernel config file, or recompile X.Org 454 and the rest of ports; otherwise they may refuse to work. 455 45620060924: 457 tcpslice has been removed from the base system. 458 45920060913: 460 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 461 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 462 systat needs to be rebuilt. 463 46420060903: 465 libpcap updated to v0.9.4 and tcpdump to v3.9.4 466 46720060816: 468 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 469 for IPFIREWALL_FORWARD is now as it was before when it was first 470 committed and for years after. The behaviour is now ON. 471 47220060725: 473 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 474 Now it can decrypt files created from different architectures. 475 Unfortunately, it is no longer able to decrypt a cipher text 476 generated with an older version on 64 bit architectures. 477 If you have such a file, you need old utility to decrypt it. 478 47920060709: 480 The interface version of the i4b kernel part has changed. So 481 after updating the kernel sources and compiling a new kernel, 482 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 483 be rebuilt, and vice versa. 484 48520060627: 486 The XBOX kernel now defaults to the nfe(4) driver instead of 487 the nve(4) driver. Please update your configuration 488 accordingly. 489 49020060514: 491 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 492 PCnet family of NICs has been removed. The new le(4) driver serves 493 as an equivalent but cross-platform replacement with the pcn(4) 494 driver still providing performance-optimized support for the subset 495 of AMD Am79C971 PCnet-FAST and greater chips as before. 496 49720060511: 498 The machdep.* sysctls and the adjkerntz utility have been 499 modified a bit. The new adjkerntz utility uses the new 500 sysctl names and sysctlbyname() calls, so it may be impossible 501 to run an old /sbin/adjkerntz utility in single-user mode 502 with a new kernel. Replace the `adjkerntz -i' step before 503 `make installworld' with: 504 505 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 506 507 and proceed as usual with the rest of the installworld-stage 508 steps. Otherwise, you risk installing binaries with their 509 timestamp set several hours in the future, especially if 510 you are running with local time set to GMT+X hours. 511 51220060412: 513 The ip6fw utility has been removed. The behavior provided by 514 ip6fw has been in ipfw2 for a good while and the rc.d scripts 515 have been updated to deal with it. There are some rules that 516 might not migrate cleanly. Use rc.firewall6 as a template to 517 rewrite rules. 518 51920060428: 520 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 521 attachments have been removed. Make sure to configure scc(4) 522 on sparc64. Note also that by default puc(4) will use uart(4) 523 and not sio(4) for serial ports because interrupt handling has 524 been optimized for multi-port serial cards and only uart(4) 525 implements the interface to support it. 526 52720060330: 528 The scc(4) driver replaces puc(4) for Serial Communications 529 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 530 Z8530. On sparc64, it is advised to add scc(4) to the kernel 531 configuration to make sure that the serial ports remain 532 functional. 533 53420060317: 535 Most world/kernel related NO_* build options changed names. 536 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 537 after FreeBSD ports) and should be set in /etc/src.conf 538 (the src.conf(5) manpage is provided). Full backwards 539 compatibility is maintained for the time being though it's 540 highly recommended to start moving old options out of the 541 system-wide /etc/make.conf file into the new /etc/src.conf 542 while also properly renaming them. More conversions will 543 likely follow. Posting to current@: 544 545 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 546 54720060305: 548 The NETSMBCRYPTO kernel option has been retired because its 549 functionality is always included in NETSMB and smbfs.ko now. 550 55120060303: 552 The TDFX_LINUX kernel option was retired and replaced by the 553 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 554 kernel module. Loading it alone should suffice to get 3dfx support 555 for Linux apps because it will pull in 3dfx.ko and linux.ko through 556 its dependencies. 557 55820060204: 559 The 'audit' group was added to support the new auditing functionality 560 in the base system. Be sure to follow the directions for updating, 561 including the requirement to run mergemaster -p. 562 56320060201: 564 The kernel ABI to file system modules was changed on i386. 565 Please make sure that your kernel and modules are in sync. 566 56720060118: 568 This actually occured some time ago, but installing the kernel 569 now also installs a bunch of symbol files for the kernel modules. 570 This increases the size of /boot/kernel to about 67Mbytes. You 571 will need twice this if you will eventually back this up to kernel.old 572 on your next install. 573 If you have a shortage of room in your root partition, you should add 574 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 575 to your /etc/make.conf. 576 57720060113: 578 libc's malloc implementation has been replaced. This change has the 579 potential to uncover application bugs that previously went unnoticed. 580 See the malloc(3) manual page for more details. 581 58220060112: 583 The generic netgraph(4) cookie has been changed. If you upgrade 584 kernel passing this point, you also need to upgrade userland 585 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 586 58720060106: 588 si(4)'s device files now contain the unit number. 589 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 590 59120060106: 592 The kernel ABI was mostly destroyed due to a change in the size 593 of struct lock_object which is nested in other structures such 594 as mutexes which are nested in all sorts of other structures. 595 Make sure your kernel and modules are in sync. 596 59720051231: 598 The page coloring algorithm in the VM subsystem was converted 599 from tuning with kernel options to autotuning. Please remove 600 any PQ_* option except PQ_NOOPT from your kernel config. 601 60220051211: 603 The net80211-related tools in the tools/tools/ath directory 604 have been moved to tools/tools/net80211 and renamed with a 605 "wlan" prefix. Scripts that use them should be adjusted 606 accordingly. 607 60820051202: 609 Scripts in the local_startup directories (as defined in 610 /etc/defaults/rc.conf) that have the new rc.d semantics will 611 now be run as part of the base system rcorder. If there are 612 errors or problems with one of these local scripts, it could 613 cause boot problems. If you encounter such problems, boot in 614 single user mode, remove that script from the */rc.d directory. 615 Please report the problem to the port's maintainer, and the 616 freebsd-ports@freebsd.org mailing list. 617 61820051129: 619 The nodev mount option was deprecated in RELENG_6 (where it 620 was a no-op), and is now unsupported. If you have nodev or dev listed 621 in /etc/fstab, remove it, otherwise it will result in a mount error. 622 62320051129: 624 ABI between ipfw(4) and ipfw(8) has been changed. You need 625 to rebuild ipfw(8) when rebuilding kernel. 626 62720051108: 628 rp(4)'s device files now contain the unit number. 629 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 630 63120051029: 632 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 633 Its /etc/rc.conf.d configuration file has been `ppp' from 634 the beginning, and hence there is no need to touch it. 635 63620051014: 637 Now most modules get their build-time options from the kernel 638 configuration file. A few modules still have fixed options 639 due to their non-conformant implementation, but they will be 640 corrected eventually. You may need to review the options of 641 the modules in use, explicitly specify the non-default options 642 in the kernel configuration file, and rebuild the kernel and 643 modules afterwards. 644 64520051001: 646 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 647 to turn polling(4) on your interfaces. 648 64920050927: 650 The old bridge(4) implementation was retired. The new 651 if_bridge(4) serves as a full functional replacement. 652 65320050722: 654 The ai_addrlen of a struct addrinfo was changed to a socklen_t 655 to conform to POSIX-2001. This change broke an ABI 656 compatibility on 64 bit architecture. You have to recompile 657 userland programs that use getaddrinfo(3) on 64 bit 658 architecture. 659 66020050711: 661 RELENG_6 branched here. 662 66320050629: 664 The pccard_ifconfig rc.conf variable has been removed and a new 665 variable, ifconfig_DEFAULT has been introduced. Unlike 666 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 667 do not have ifconfig_ifn entries rather than just those in 668 removable_interfaces. 669 67020050616: 671 Some previous versions of PAM have permitted the use of 672 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 673 to third party PAM modules in /usr/local/lib. A change has been 674 made to require the use of absolute paths in order to avoid 675 ambiguity and dependence on library path configuration, which may 676 affect existing configurations. 677 67820050610: 679 Major changes to network interface API. All drivers must be 680 recompiled. Drivers not in the base system will need to be 681 updated to the new APIs. 682 68320050609: 684 Changes were made to kinfo_proc in sys/user.h. Please recompile 685 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 686 will not behave correctly. 687 688 The API and ABI for hwpmc(4) have changed with the addition 689 of sampling support. Please recompile lib/libpmc(3) and 690 usr.sbin/{pmcstat,pmccontrol}. 691 69220050606: 693 The OpenBSD dhclient was imported in place of the ISC dhclient 694 and the network interface configuration scripts were updated 695 accordingly. If you use DHCP to configure your interfaces, you 696 must now run devd. Also, DNS updating was lost so you will need 697 to find a workaround if you use this feature. 698 699 The '_dhcp' user was added to support the OpenBSD dhclient. Be 700 sure to run mergemaster -p (like you are supposed to do every time 701 anyway). 702 70320050605: 704 if_bridge was added to the tree. This has changed struct ifnet. 705 Please recompile userland and all network related modules. 706 70720050603: 708 The n_net of a struct netent was changed to an uint32_t, and 709 1st argument of getnetbyaddr() was changed to an uint32_t, to 710 conform to POSIX-2001. These changes broke an ABI 711 compatibility on 64 bit architecture. With these changes, 712 shlib major of libpcap was bumped. You have to recompile 713 userland programs that use getnetbyaddr(3), getnetbyname(3), 714 getnetent(3) and/or libpcap on 64 bit architecture. 715 71620050528: 717 Kernel parsing of extra options on '#!' first lines of shell 718 scripts has changed. Lines with multiple options likely will 719 fail after this date. For full details, please see 720 http://people.freebsd.org/~gad/Updating-20050528.txt 721 72220050503: 723 The packet filter (pf) code has been updated to OpenBSD 3.7 724 Please note the changed anchor syntax and the fact that 725 authpf(8) now needs a mounted fdescfs(5) to function. 726 72720050415: 728 The NO_MIXED_MODE kernel option has been removed from the i386 729 amd64 platforms as its use has been superceded by the new local 730 APIC timer code. Any kernel config files containing this option 731 should be updated. 732 73320050227: 734 The on-disk format of LC_CTYPE files was changed to be machine 735 independent. Please make sure NOT to use NO_CLEAN buildworld 736 when crossing this point. Crossing this point also requires 737 recompile or reinstall of all locale depended packages. 738 73920050225: 740 The ifi_epoch member of struct if_data has been changed to 741 contain the uptime at which the interface was created or the 742 statistics zeroed rather then the wall clock time because 743 wallclock time may go backwards. This should have no impact 744 unless an snmp implementation is using this value (I know of 745 none at this point.) 746 74720050224: 748 The acpi_perf and acpi_throttle drivers are now part of the 749 acpi(4) main module. They are no longer built separately. 750 75120050223: 752 The layout of struct image_params has changed. You have to 753 recompile all compatibility modules (linux, svr4, etc) for use 754 with the new kernel. 755 75620050223: 757 The p4tcc driver has been merged into cpufreq(4). This makes 758 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 759 compile in "device cpufreq" to restore this functionality. 760 76120050220: 762 The responsibility of recomputing the file system summary of 763 a SoftUpdates-enabled dirty volume has been transferred to the 764 background fsck. A rebuild of fsck(8) utility is recommended 765 if you have updated the kernel. 766 767 To get the old behavior (recompute file system summary at mount 768 time), you can set vfs.ffs.compute_summary_at_mount=1 before 769 mounting the new volume. 770 77120050206: 772 The cpufreq import is complete. As part of this, the sysctls for 773 acpi(4) throttling have been removed. The power_profile script 774 has been updated, so you can use performance/economy_cpu_freq in 775 rc.conf(5) to set AC on/offline cpu frequencies. 776 77720050206: 778 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 779 requires recompiling libnetgraph and userland netgraph utilities. 780 78120050114: 782 Support for abbreviated forms of a number of ipfw options is 783 now deprecated. Warnings are printed to stderr indicating the 784 correct full form when a match occurs. Some abbreviations may 785 be supported at a later date based on user feedback. To be 786 considered for support, abbreviations must be in use prior to 787 this commit and unlikely to be confused with current key words. 788 78920041221: 790 By a popular demand, a lot of NOFOO options were renamed 791 to NO_FOO (see bsd.compat.mk for a full list). The old 792 spellings are still supported, but will cause annoying 793 warnings on stderr. Make sure you upgrade properly (see 794 the COMMON ITEMS: section later in this file). 795 79620041219: 797 Auto-loading of ancillary wlan modules such as wlan_wep has 798 been temporarily disabled; you need to statically configure 799 the modules you need into your kernel or explicitly load them 800 prior to use. Specifically, if you intend to use WEP encryption 801 with an 802.11 device load/configure wlan_wep; if you want to 802 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 803 and wlan_xauth as required. 804 80520041213: 806 The behaviour of ppp(8) has changed slightly. If lqr is enabled 807 (``enable lqr''), older versions would revert to LCP ECHO mode on 808 negotiation failure. Now, ``enable echo'' is required for this 809 behaviour. The ppp version number has been bumped to 3.4.2 to 810 reflect the change. 811 81220041201: 813 The wlan support has been updated to split the crypto support 814 into separate modules. For static WEP you must configure the 815 wlan_wep module in your system or build and install the module 816 in place where it can be loaded (the kernel will auto-load 817 the module when a wep key is configured). 818 81920041201: 820 The ath driver has been updated to split the tx rate control 821 algorithm into a separate module. You need to include either 822 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 823 82420041116: 825 Support for systems with an 80386 CPU has been removed. Please 826 use FreeBSD 5.x or earlier on systems with an 80386. 827 82820041110: 829 We have had a hack which would mount the root filesystem 830 R/W if the device were named 'md*'. As part of the vnode 831 work I'm doing I have had to remove this hack. People 832 building systems which use preloaded MD root filesystems 833 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 834 their /etc/rc scripts. 835 83620041104: 837 FreeBSD 5.3 shipped here. 838 83920041102: 840 The size of struct tcpcb has changed again due to the removal 841 of RFC1644 T/TCP. You have to recompile userland programs that 842 read kmem for tcp sockets directly (netstat, sockstat, etc.) 843 84420041022: 845 The size of struct tcpcb has changed. You have to recompile 846 userland programs that read kmem for tcp sockets directly 847 (netstat, sockstat, etc.) 848 84920041016: 850 RELENG_5 branched here. For older entries, please see updating 851 in the RELENG_5 branch. 852 853COMMON ITEMS: 854 855 General Notes 856 ------------- 857 Avoid using make -j when upgrading. From time to time in the 858 past there have been problems using -j with buildworld and/or 859 installworld. This is especially true when upgrading between 860 "distant" versions (eg one that cross a major release boundary 861 or several minor releases, or when several months have passed 862 on the -current branch). 863 864 Sometimes, obscure build problems are the result of environment 865 poisoning. This can happen because the make utility reads its 866 environment when searching for values for global variables. 867 To run your build attempts in an "environmental clean room", 868 prefix all make commands with 'env -i '. See the env(1) manual 869 page for more details. 870 871 When upgrading from one major version to another it is generally 872 best to upgrade to the latest code in the currently installed branch 873 first, then do an upgrade to the new branch. This is the best-tested 874 upgrade path, and has the highest probability of being successful. 875 Please try this approach before reporting problems with a major 876 version upgrade. 877 878 To build a kernel 879 ----------------- 880 If you are updating from a prior version of FreeBSD (even one just 881 a few days old), you should follow this procedure. It is the most 882 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 883 884 make kernel-toolchain 885 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 886 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 887 888 To test a kernel once 889 --------------------- 890 If you just want to boot a kernel once (because you are not sure 891 if it works, or if you want to boot a known bad kernel to provide 892 debugging information) run 893 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 894 nextboot -k testkernel 895 896 To just build a kernel when you know that it won't mess you up 897 -------------------------------------------------------------- 898 This assumes you are already running a 5.X system. Replace 899 ${arch} with the architecture of your machine (e.g. "i386", 900 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 901 902 cd src/sys/${arch}/conf 903 config KERNEL_NAME_HERE 904 cd ../compile/KERNEL_NAME_HERE 905 make depend 906 make 907 make install 908 909 If this fails, go to the "To build a kernel" section. 910 911 To rebuild everything and install it on the current system. 912 ----------------------------------------------------------- 913 # Note: sometimes if you are running current you gotta do more than 914 # is listed here if you are upgrading from a really old current. 915 916 <make sure you have good level 0 dumps> 917 make buildworld 918 make kernel KERNCONF=YOUR_KERNEL_HERE 919 [1] 920 <reboot in single user> [3] 921 mergemaster -p [5] 922 make installworld 923 make delete-old 924 mergemaster [4] 925 <reboot> 926 927 928 To cross-install current onto a separate partition 929 -------------------------------------------------- 930 # In this approach we use a separate partition to hold 931 # current's root, 'usr', and 'var' directories. A partition 932 # holding "/", "/usr" and "/var" should be about 2GB in 933 # size. 934 935 <make sure you have good level 0 dumps> 936 <boot into -stable> 937 make buildworld 938 make buildkernel KERNCONF=YOUR_KERNEL_HERE 939 <maybe newfs current's root partition> 940 <mount current's root partition on directory ${CURRENT_ROOT}> 941 make installworld DESTDIR=${CURRENT_ROOT} 942 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 943 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 944 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 945 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 946 <reboot into current> 947 <do a "native" rebuild/install as described in the previous section> 948 <maybe install compatibility libraries from src/lib/compat> 949 <reboot> 950 951 952 To upgrade in-place from 5.x-stable to current 953 ---------------------------------------------- 954 <make sure you have good level 0 dumps> 955 make buildworld [9] 956 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 957 [1] 958 <reboot in single user> [3] 959 mergemaster -p [5] 960 make installworld 961 make delete-old 962 mergemaster -i [4] 963 <reboot> 964 965 Make sure that you've read the UPDATING file to understand the 966 tweaks to various things you need. At this point in the life 967 cycle of current, things change often and you are on your own 968 to cope. The defaults can also change, so please read ALL of 969 the UPDATING entries. 970 971 Also, if you are tracking -current, you must be subscribed to 972 freebsd-current@freebsd.org. Make sure that before you update 973 your sources that you have read and understood all the recent 974 messages there. If in doubt, please track -stable which has 975 much fewer pitfalls. 976 977 [1] If you have third party modules, such as vmware, you 978 should disable them at this point so they don't crash your 979 system on reboot. 980 981 [3] From the bootblocks, boot -s, and then do 982 fsck -p 983 mount -u / 984 mount -a 985 cd src 986 adjkerntz -i # if CMOS is wall time 987 Also, when doing a major release upgrade, it is required that 988 you boot into single user mode to do the installworld. 989 990 [4] Note: This step is non-optional. Failure to do this step 991 can result in a significant reduction in the functionality of the 992 system. Attempting to do it by hand is not recommended and those 993 that pursue this avenue should read this file carefully, as well 994 as the archives of freebsd-current and freebsd-hackers mailing lists 995 for potential gotchas. 996 997 [5] Usually this step is a noop. However, from time to time 998 you may need to do this if you get unknown user in the following 999 step. It never hurts to do it all the time. You may need to 1000 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1001 install) after the buildworld before this step if you last updated 1002 from current before 20020224 or from -stable before 20020408. 1003 1004 [8] In order to have a kernel that can run the 4.x binaries 1005 needed to do an installworld, you must include the COMPAT_FREEBSD4 1006 option in your kernel. Failure to do so may leave you with a system 1007 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1008 is required to run the 5.x binaries on more recent kernels. 1009 1010 Make sure that you merge any new devices from GENERIC since the 1011 last time you updated your kernel config file. 1012 1013 [9] When checking out sources, you must include the -P flag to have 1014 cvs prune empty directories. 1015 1016 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1017 "?=" instead of the "=" assignment operator, so that buildworld can 1018 override the CPUTYPE if it needs to. 1019 1020 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1021 not on the command line, or in /etc/make.conf. buildworld will 1022 warn if it is improperly defined. 1023FORMAT: 1024 1025This file contains a list, in reverse chronological order, of major 1026breakages in tracking -current. Not all things will be listed here, 1027and it only starts on October 16, 2004. Updating files can found in 1028previous releases if your system is older than this. 1029 1030Copyright information: 1031 1032Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1033 1034Redistribution, publication, translation and use, with or without 1035modification, in full or in part, in any form or format of this 1036document are permitted without further permission from the author. 1037 1038THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1039IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1040WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1041DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1042INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1043(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1044SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1045HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1046STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1047IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1048POSSIBILITY OF SUCH DAMAGE. 1049 1050If you find this document useful, and you want to, you may buy the 1051author a beer. 1052 1053Contact Warner Losh if you have any questions about your use of 1054this document. 1055 1056$FreeBSD$ 1057