UPDATING revision 192669
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 2520090523: 26 The layout of struct vnet_net has changed, therefore modules 27 need to be rebuilt. 28 Bump __FreeBSD_version to 800090. 29 3020090523: 31 The newly imported zic(8) produces a new format in the 32 output. Please run tzsetup(8) to install the newly created 33 data to /etc/localtime. 34 3520090520: 36 The sysctl tree for the usb stack has renamed from hw.usb2.* to 37 hw.usb.* and is now consistent again with previous releases. 38 3920090520: 40 802.11 monitor mode support was revised and driver api's 41 were changed. Drivers dependent on net80211 now support 42 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 43 user-visible data structures were changed but applications 44 that use DLT_IEEE802_11 may require changes. 45 Bump __FreeBSD_version to 800088. 46 4720090430: 48 The layout of the following structs has changed: sysctl_oid, 49 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 50 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 51 panics may be experienced. World rebuild is required for 52 correctly checking networking state from userland. 53 Bump __FreeBSD_version to 800085. 54 5520090429: 56 MLDv2 and Source-Specific Multicast (SSM) have been merged 57 to the IPv6 stack. VIMAGE hooks are in but not yet used. 58 The implementation of SSM within FreeBSD's IPv6 stack closely 59 follows the IPv4 implementation. 60 61 For kernel developers: 62 63 * The most important changes are that the ip6_output() and 64 ip6_input() paths no longer take the IN6_MULTI_LOCK, 65 and this lock has been downgraded to a non-recursive mutex. 66 67 * As with the changes to the IPv4 stack to support SSM, filtering 68 of inbound multicast traffic must now be performed by transport 69 protocols within the IPv6 stack. This does not apply to TCP and 70 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 71 72 * The KPIs used by IPv6 multicast are similar to those used by 73 the IPv4 stack, with the following differences: 74 * im6o_mc_filter() is analogous to imo_multicast_filter(). 75 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 76 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 77 * IN6_LOOKUP_MULTI() has been deprecated and removed. 78 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 79 for MLDv1 have an additional 'timer' argument which is used to 80 jitter the initial membership report for the solicited-node 81 multicast membership on-link. 82 * This is not strictly needed for MLDv2, which already jitters 83 its report transmissions. However, the 'timer' argument is 84 preserved in case MLDv1 is active on the interface. 85 86 * The KAME linked-list based IPv6 membership implementation has 87 been refactored to use a vector similar to that used by the IPv4 88 stack. 89 Code which maintains a list of its own multicast memberships 90 internally, e.g. carp, has been updated to reflect the new 91 semantics. 92 93 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 94 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 95 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 96 implementation constraint which needs to be addressed in HEAD. 97 98 For application developers: 99 100 * The changes are broadly similar to those made for the IPv4 101 stack. 102 103 * The use of IPv4 and IPv6 multicast socket options on the same 104 socket, using mapped addresses, HAS NOT been tested or supported. 105 106 * There are a number of issues with the implementation of various 107 IPv6 multicast APIs which need to be resolved in the API surface 108 before the implementation is fully compatible with KAME userland 109 use, and these are mostly to do with interface index treatment. 110 111 * The literature available discusses the use of either the delta / ASM 112 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 113 using setsourcefilter(3)/getsourcefilter(3). For more information 114 please refer to RFC 3768, 'Socket Interface Extensions for 115 Multicast Source Filters'. 116 117 * Applications which use the published RFC 3678 APIs should be fine. 118 119 For systems administrators: 120 121 * The mtest(8) utility has been refactored to support IPv6, in 122 addition to IPv4. Interface addresses are no longer accepted 123 as arguments, their names must be used instead. The utility 124 will map the interface name to its first IPv4 address as 125 returned by getifaddrs(3). 126 127 * The ifmcstat(8) utility has also been updated to print the MLDv2 128 endpoint state and source filter lists via sysctl(3). 129 130 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 131 loopback of IPv6 multicast datagrams by default; it defaults to 1 132 to preserve the existing behaviour. Disabling multicast loopback is 133 recommended for optimal system performance. 134 135 * The IPv6 MROUTING code has been changed to examine this sysctl 136 instead of attempting to perform a group lookup before looping 137 back forwarded datagrams. 138 139 Bump __FreeBSD_version to 800084. 140 14120090422: 142 Implement low-level Bluetooth HCI API. 143 Bump __FreeBSD_version to 800083. 144 14520090419: 146 The layout of struct malloc_type, used by modules to register new 147 memory allocation types, has changed. Most modules will need to 148 be rebuilt or panics may be experienced. 149 Bump __FreeBSD_version to 800081. 150 15120090415: 152 Anticipate overflowing inp_flags - add inp_flags2. 153 This changes most offsets in inpcb, so checking v4 connection 154 state will require a world rebuild. 155 Bump __FreeBSD_version to 800080. 156 15720090415: 158 Add an llentry to struct route and struct route_in6. Modules 159 embedding a struct route will need to be recompiled. 160 Bump __FreeBSD_version to 800079. 161 16220090414: 163 The size of rt_metrics_lite and by extension rtentry has changed. 164 Networking administration apps will need to be recompiled. 165 The route command now supports show as an alias for get, weighting 166 of routes, sticky and nostick flags to alter the behavior of stateful 167 load balancing. 168 Bump __FreeBSD_version to 800078. 169 17020090408: 171 Do not use Giant for kbdmux(4) locking. This is wrong and 172 apparently causing more problems than it solves. This will 173 re-open the issue where interrupt handlers may race with 174 kbdmux(4) in polling mode. Typical symptoms include (but 175 not limited to) duplicated and/or missing characters when 176 low level console functions (such as gets) are used while 177 interrupts are enabled (for example geli password prompt, 178 mountroot prompt etc.). Disabling kbdmux(4) may help. 179 18020090407: 181 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 182 kernel modules referencing any of the above need to be recompiled. 183 Bump __FreeBSD_version to 800075. 184 18520090320: 186 GEOM_PART has become the default partition slicer for storage devices, 187 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 188 introduces some changes: 189 190 MSDOS/EBR: the devices created from MSDOS extended partition entries 191 (EBR) can be named differently than with GEOM_MBR and are now symlinks 192 to devices with offset-based names. fstabs may need to be modified. 193 194 BSD: the "geometry does not match label" warning is harmless in most 195 cases but it points to problems in file system misalignment with 196 disk geometry. The "c" partition is now implicit, covers the whole 197 top-level drive and cannot be (mis)used by users. 198 199 General: Kernel dumps are now not allowed to be written to devices 200 whose partition types indicate they are meant to be used for file 201 systems (or, in case of MSDOS partitions, as something else than 202 the "386BSD" type). 203 204 Most of these changes date approximately from 200812. 205 20620090319: 207 The uscanner(4) driver has been removed from the kernel. This follows 208 Linux removing theirs in 2.6 and making libusb the default interface 209 (supported by sane). 210 21120090319: 212 The multicast forwarding code has been cleaned up. netstat(1) 213 only relies on KVM now for printing bandwidth upcall meters. 214 The IPv4 and IPv6 modules are split into ip_mroute_mod and 215 ip6_mroute_mod respectively. The config(5) options for statically 216 compiling this code remain the same, i.e. 'options MROUTING'. 217 21820090315: 219 Support for the IFF_NEEDSGIANT network interface flag has been 220 removed, which means that non-MPSAFE network device drivers are no 221 longer supported. In particular, if_ar, if_sr, and network device 222 drivers from the old (legacy) USB stack can no longer be built or 223 used. 224 22520090313: 226 POSIX.1 Native Language Support (NLS) has been enabled in libc and 227 a bunch of new language catalog files have also been added. 228 This means that some common libc messages are now localized and 229 they depend on the LC_MESSAGES environmental variable. 230 23120090313: 232 The k8temp(4) driver has been renamed to amdtemp(4) since 233 support for K10 and K11 CPU families was added. 234 23520090309: 236 IGMPv3 and Source-Specific Multicast (SSM) have been merged 237 to the IPv4 stack. VIMAGE hooks are in but not yet used. 238 239 For kernel developers, the most important changes are that the 240 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 241 and this lock has been downgraded to a non-recursive mutex. 242 243 Transport protocols (UDP, Raw IP) are now responsible for filtering 244 inbound multicast traffic according to group membership and source 245 filters. The imo_multicast_filter() KPI exists for this purpose. 246 Transports which do not use multicast (SCTP, TCP) already reject 247 multicast by default. Forwarding and receive performance may improve 248 as a mutex acquisition is no longer needed in the ip_input() 249 low-level input path. in_addmulti() and in_delmulti() are shimmed 250 to new KPIs which exist to support SSM in-kernel. 251 252 For application developers, it is recommended that loopback of 253 multicast datagrams be disabled for best performance, as this 254 will still cause the lock to be taken for each looped-back 255 datagram transmission. The net.inet.ip.mcast.loop sysctl may 256 be tuned to 0 to disable loopback by default; it defaults to 1 257 to preserve the existing behaviour. 258 259 For systems administrators, to obtain best performance with 260 multicast reception and multiple groups, it is always recommended 261 that a card with a suitably precise hash filter is used. Hash 262 collisions will still result in the lock being taken within the 263 transport protocol input path to check group membership. 264 265 If deploying FreeBSD in an environment with IGMP snooping switches, 266 it is recommended that the net.inet.igmp.sendlocal sysctl remain 267 enabled; this forces 224.0.0.0/24 group membership to be announced 268 via IGMP. 269 270 The size of 'struct igmpstat' has changed; netstat needs to be 271 recompiled to reflect this. 272 Bump __FreeBSD_version to 800070. 273 27420090309: 275 libusb20.so.1 is now installed as libusb.so.1 and the ports system 276 updated to use it. This requires a buildworld/installworld in order to 277 update the library and dependencies (usbconfig, etc). Its advisable to 278 rebuild all ports which uses libusb. More specific directions are given 279 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 280 libusb are no longer required and can be removed. 281 28220090302: 283 A workaround is committed to allow the creation of System V shared 284 memory segment of size > 2 GB on the 64-bit architectures. 285 Due to a limitation of the existing ABI, the shm_segsz member 286 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 287 wrong for large segments. Note that limits must be explicitly 288 raised to allow such segments to be created. 289 29020090301: 291 The layout of struct ifnet has changed, requiring a rebuild of all 292 network device driver modules. 293 29420090227: 295 The /dev handling for the new USB stack has changed, a 296 buildworld/installworld is required for libusb20. 297 29820090223: 299 The new USB2 stack has now been permanently moved in and all kernel and 300 module names reverted to their previous values (eg, usb, ehci, ohci, 301 ums, ...). The old usb stack can be compiled in by prefixing the name 302 with the letter 'o', the old usb modules have been removed. 303 Updating entry 20090216 for xorg and 20090215 for libmap may still 304 apply. 305 30620090217: 307 The rc.conf(5) option if_up_delay has been renamed to 308 defaultroute_delay to better reflect its purpose. If you have 309 customized this setting in /etc/rc.conf you need to update it to 310 use the new name. 311 31220090216: 313 xorg 7.4 wants to configure its input devices via hald which does not 314 yet work with USB2. If the keyboard/mouse does not work in xorg then 315 add 316 Option "AllowEmptyInput" "off" 317 to your ServerLayout section. This will cause X to use the configured 318 kbd and mouse sections from your xorg.conf. 319 32020090215: 321 The GENERIC kernels for all architectures now default to the new USB2 322 stack. No kernel config options or code have been removed so if a 323 problem arises please report it and optionally revert to the old USB 324 stack. If you are loading USB kernel modules or have a custom kernel 325 that includes GENERIC then ensure that usb names are also changed over, 326 eg uftdi -> usb2_serial_ftdi. 327 328 Older programs linked against the ports libusb 0.1 need to be 329 redirected to the new stack's libusb20. /etc/libmap.conf can 330 be used for this: 331 # Map old usb library to new one for usb2 stack 332 libusb-0.1.so.8 libusb20.so.1 333 33420090203: 335 The ichsmb(4) driver has been changed to require SMBus slave 336 addresses be left-justified (xxxxxxx0b) rather than right-justified. 337 All of the other SMBus controller drivers require left-justified 338 slave addresses, so this change makes all the drivers provide the 339 same interface. 340 34120090201: 342 INET6 statistics (struct ip6stat) was updated. 343 netstat(1) needs to be recompiled. 344 34520090119: 346 NTFS has been removed from GENERIC kernel on amd64 to match 347 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 348 will load ntfs.ko module automatically when NTFS support is 349 actually needed, unless ntfs.ko is not installed or security 350 level prohibits loading kernel modules. If either is the case, 351 "options NTFS" has to be added into kernel config. 352 35320090115: 354 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 355 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 356 800061. User space tools that rely on the size of struct tcpcb in 357 tcp_var.h (e.g. sockstat) need to be recompiled. 358 35920081225: 360 ng_tty(4) module updated to match the new TTY subsystem. 361 Due to API change, user-level applications must be updated. 362 New API support added to mpd5 CVS and expected to be present 363 in next mpd5.3 release. 364 36520081219: 366 With __FreeBSD_version 800060 the makefs tool is part of 367 the base system (it was a port). 368 36920081216: 370 The afdata and ifnet locks have been changed from mutexes to 371 rwlocks, network modules will need to be re-compiled. 372 37320081214: 374 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 375 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 376 The new code reduced struct rtentry{} by 16 bytes on 32-bit 377 architecture and 40 bytes on 64-bit architecture. The userland 378 applications "arp" and "ndp" have been updated accordingly. 379 The output from "netstat -r" shows only routing entries and 380 none of the L2 information. 381 38220081130: 383 __FreeBSD_version 800057 marks the switchover from the 384 binary ath hal to source code. Users must add the line: 385 386 options AH_SUPPORT_AR5416 387 388 to their kernel config files when specifying: 389 390 device ath_hal 391 392 The ath_hal module no longer exists; the code is now compiled 393 together with the driver in the ath module. It is now 394 possible to tailor chip support (i.e. reduce the set of chips 395 and thereby the code size); consult ath_hal(4) for details. 396 39720081121: 398 __FreeBSD_version 800054 adds memory barriers to 399 <machine/atomic.h>, new interfaces to ifnet to facilitate 400 multiple hardware transmit queues for cards that support 401 them, and a lock-less ring-buffer implementation to 402 enable drivers to more efficiently manage queueing of 403 packets. 404 40520081117: 406 A new version of ZFS (version 13) has been merged to -HEAD. 407 This version has zpool attribute "listsnapshots" off by 408 default, which means "zfs list" does not show snapshots, 409 and is the same as Solaris behavior. 410 41120081028: 412 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 413 41420081009: 415 The uhci, ohci, ehci and slhci USB Host controller drivers have 416 been put into separate modules. If you load the usb module 417 separately through loader.conf you will need to load the 418 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 419 controller add the following to loader.conf: 420 421 uhci_load="YES" 422 ehci_load="YES" 423 42420081009: 425 The ABI used by the PMC toolset has changed. Please keep 426 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 427 sync. 428 42920080820: 430 The TTY subsystem of the kernel has been replaced by a new 431 implementation, which provides better scalability and an 432 improved driver model. Most common drivers have been migrated to 433 the new TTY subsystem, while others have not. The following 434 drivers have not yet been ported to the new TTY layer: 435 436 PCI/ISA: 437 cy, digi, rc, rp, sio 438 439 USB: 440 ubser, ucycom 441 442 Line disciplines: 443 ng_h4, ng_tty, ppp, sl, snp 444 445 Adding these drivers to your kernel configuration file shall 446 cause compilation to fail. 447 44820080818: 449 ntpd has been upgraded to 4.2.4p5. 450 45120080801: 452 OpenSSH has been upgraded to 5.1p1. 453 454 For many years, FreeBSD's version of OpenSSH preferred DSA 455 over RSA for host and user authentication keys. With this 456 upgrade, we've switched to the vendor's default of RSA over 457 DSA. This may cause upgraded clients to warn about unknown 458 host keys even for previously known hosts. Users should 459 follow the usual procedure for verifying host keys before 460 accepting the RSA key. 461 462 This can be circumvented by setting the "HostKeyAlgorithms" 463 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 464 command line. 465 466 Please note that the sequence of keys offered for 467 authentication has been changed as well. You may want to 468 specify IdentityFile in a different order to revert this 469 behavior. 470 47120080713: 472 The sio(4) driver has been removed from the i386 and amd64 473 kernel configuration files. This means uart(4) is now the 474 default serial port driver on those platforms as well. 475 476 To prevent collisions with the sio(4) driver, the uart(4) driver 477 uses different names for its device nodes. This means the 478 onboard serial port will now most likely be called "ttyu0" 479 instead of "ttyd0". You may need to reconfigure applications to 480 use the new device names. 481 482 When using the serial port as a boot console, be sure to update 483 /boot/device.hints and /etc/ttys before booting the new kernel. 484 If you forget to do so, you can still manually specify the hints 485 at the loader prompt: 486 487 set hint.uart.0.at="isa" 488 set hint.uart.0.port="0x3F8" 489 set hint.uart.0.flags="0x10" 490 set hint.uart.0.irq="4" 491 boot -s 492 49320080609: 494 The gpt(8) utility has been removed. Use gpart(8) to partition 495 disks instead. 496 49720080603: 498 The version that Linuxulator emulates was changed from 2.4.2 499 to 2.6.16. If you experience any problems with Linux binaries 500 please try to set sysctl compat.linux.osrelease to 2.4.2 and 501 if it fixes the problem contact emulation mailing list. 502 50320080525: 504 ISDN4BSD (I4B) was removed from the src tree. You may need to 505 update a your kernel configuration and remove relevant entries. 506 50720080509: 508 I have checked in code to support multiple routing tables. 509 See the man pages setfib(1) and setfib(2). 510 This is a hopefully backwards compatible version, 511 but to make use of it you need to compile your kernel 512 with options ROUTETABLES=2 (or more up to 16). 513 51420080420: 515 The 802.11 wireless support was redone to enable multi-bss 516 operation on devices that are capable. The underlying device 517 is no longer used directly but instead wlanX devices are 518 cloned with ifconfig. This requires changes to rc.conf files. 519 For example, change: 520 ifconfig_ath0="WPA DHCP" 521 to 522 wlans_ath0=wlan0 523 ifconfig_wlan0="WPA DHCP" 524 see rc.conf(5) for more details. In addition, mergemaster of 525 /etc/rc.d is highly recommended. Simultaneous update of userland 526 and kernel wouldn't hurt either. 527 528 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 529 modules were merged into the base wlan module. All references 530 to these modules (e.g. in kernel config files) must be removed. 531 53220080408: 533 psm(4) has gained write(2) support in native operation level. 534 Arbitrary commands can be written to /dev/psm%d and status can 535 be read back from it. Therefore, an application is responsible 536 for status validation and error recovery. It is a no-op in 537 other operation levels. 538 53920080312: 540 Support for KSE threading has been removed from the kernel. To 541 run legacy applications linked against KSE libmap.conf may 542 be used. The following libmap.conf may be used to ensure 543 compatibility with any prior release: 544 545 libpthread.so.1 libthr.so.1 546 libpthread.so.2 libthr.so.2 547 libkse.so.3 libthr.so.3 548 54920080301: 550 The layout of struct vmspace has changed. This affects libkvm 551 and any executables that link against libkvm and use the 552 kvm_getprocs() function. In particular, but not exclusively, 553 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 554 The effects are minimal, but it's advisable to upgrade world 555 nonetheless. 556 55720080229: 558 The latest em driver no longer has support in it for the 559 82575 adapter, this is now moved to the igb driver. The 560 split was done to make new features that are incompatible 561 with older hardware easier to do. 562 56320080220: 564 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 565 likewise the kernel option is now GEOM_LINUX_LVM. 566 56720080211: 568 The default NFS mount mode has changed from UDP to TCP for 569 increased reliability. If you rely on (insecurely) NFS 570 mounting across a firewall you may need to update your 571 firewall rules. 572 57320080208: 574 Belatedly note the addition of m_collapse for compacting 575 mbuf chains. 576 57720080126: 578 The fts(3) structures have been changed to use adequate 579 integer types for their members and so to be able to cope 580 with huge file trees. The old fts(3) ABI is preserved 581 through symbol versioning in libc, so third-party binaries 582 using fts(3) should still work, although they will not take 583 advantage of the extended types. At the same time, some 584 third-party software might fail to build after this change 585 due to unportable assumptions made in its source code about 586 fts(3) structure members. Such software should be fixed 587 by its vendor or, in the worst case, in the ports tree. 588 FreeBSD_version 800015 marks this change for the unlikely 589 case that a portable fix is impossible. 590 59120080123: 592 To upgrade to -current after this date, you must be running 593 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 594 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 595 59620071128: 597 The ADAPTIVE_GIANT kernel option has been retired because its 598 functionality is the default now. 599 60020071118: 601 The AT keyboard emulation of sunkbd(4) has been turned on 602 by default. In order to make the special symbols of the Sun 603 keyboards driven by sunkbd(4) work under X these now have 604 to be configured the same way as Sun USB keyboards driven 605 by ukbd(4) (which also does AT keyboard emulation), f.e.: 606 607 Option "XkbLayout" "us" 608 Option "XkbRules" "xorg" 609 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 610 61120071024: 612 It has been decided that it is desirable to provide ABI 613 backwards compatibility to the FreeBSD 4/5/6 versions of the 614 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 615 broken with the introduction of PCI domain support (see the 616 20070930 entry). Unfortunately, this required the ABI of 617 PCIOCGETCONF to be broken again in order to be able to 618 provide backwards compatibility to the old version of that 619 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 620 again. As for prominent ports this affects neither pciutils 621 nor xorg-server this time, the hal port needs to be rebuilt 622 however. 623 62420071020: 625 The misnamed kthread_create() and friends have been renamed 626 to kproc_create() etc. Many of the callers already 627 used kproc_start().. 628 I will return kthread_create() and friends in a while 629 with implementations that actually create threads, not procs. 630 Renaming corresponds with version 800002. 631 63220071010: 633 RELENG_7 branched. 634 63520071009: 636 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 637 WITHOUT_LIBTHR are set. 638 63920070930: 640 The PCI code has been made aware of PCI domains. This means that 641 the location strings as used by pciconf(8) etc are now in the 642 following format: pci<domain>:<bus>:<device>[:<function>]. It 643 also means that consumers of <sys/pciio.h> potentially need to 644 be recompiled; this includes the hal and xorg-server ports. 645 64620070928: 647 The caching daemon (cached) was renamed to nscd. nscd.conf 648 configuration file should be used instead of cached.conf and 649 nscd_enable, nscd_pidfile and nscd_flags options should be used 650 instead of cached_enable, cached_pidfile and cached_flags in 651 rc.conf. 652 65320070921: 654 The getfacl(1) utility now prints owning user and group name 655 instead of owning uid and gid in the three line comment header. 656 This is the same behavior as getfacl(1) on Solaris and Linux. 657 65820070704: 659 The new IPsec code is now compiled in using the IPSEC option. The 660 IPSEC option now requires "device crypto" be defined in your kernel 661 configuration. The FAST_IPSEC kernel option is now deprecated. 662 66320070702: 664 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 665 note the changed syntax - keep state is now on by default. Also 666 note the fact that ftp-proxy(8) has been changed from bottom up and 667 has been moved from libexec to usr/sbin. Changes in the ALTQ 668 handling also affect users of IPFW's ALTQ capabilities. 669 67020070701: 671 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 672 only IPsec supported by FreeBSD. The new IPsec stack 673 supports both IPv4 and IPv6. The kernel option will change 674 after the code changes have settled in. For now the kernel 675 option IPSEC is deprecated and FAST_IPSEC is the only option, that 676 will change after some settling time. 677 67820070701: 679 The wicontrol(8) utility has been removed from the base system. wi(4) 680 cards should be configured using ifconfig(8), see the man page for more 681 information. 682 68320070612: 684 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 685 instead of the nve(4) driver. Please update your configuration 686 accordingly. 687 68820070612: 689 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 690 database if it is missing or older than the aliases file. If 691 desired, set the new rc.conf option sendmail_rebuild_aliases 692 to "YES" to restore that functionality. 693 69420070612: 695 The IPv4 multicast socket code has been considerably modified, and 696 moved to the file sys/netinet/in_mcast.c. Initial support for the 697 RFC 3678 Source-Specific Multicast Socket API has been added to 698 the IPv4 network stack. 699 700 Strict multicast and broadcast reception is now the default for 701 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 702 has now been removed. 703 704 The RFC 1724 hack for interface selection has been removed; the use 705 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 706 been added to replace it. Consumers such as routed will soon be 707 updated to reflect this. 708 709 These changes affect users who are running routed(8) or rdisc(8) 710 from the FreeBSD base system on point-to-point or unnumbered 711 interfaces. 712 71320070610: 714 The net80211 layer has changed significantly and all wireless 715 drivers that depend on it need to be recompiled. Further these 716 changes require that any program that interacts with the wireless 717 support in the kernel be recompiled; this includes: ifconfig, 718 wpa_supplicant, hostapd, and wlanstats. Users must also, for 719 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 720 if they use modules for wireless support. These modules implement 721 scanning support for station and ap modes, respectively. Failure 722 to load the appropriate module before marking a wireless interface 723 up will result in a message to the console and the device not 724 operating properly. 725 72620070610: 727 The pam_nologin(8) module ceases to provide an authentication 728 function and starts providing an account management function. 729 Consequent changes to /etc/pam.d should be brought in using 730 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 731 need manual editing as follows. Locate this line (or similar): 732 733 auth required pam_nologin.so no_warn 734 735 and change it according to this example: 736 737 account required pam_nologin.so no_warn 738 739 That is, the first word needs to be changed from "auth" to 740 "account". The new line can be moved to the account section 741 within the file for clarity. Not updating pam.conf(5) files 742 will result in nologin(5) ignored by the respective services. 743 74420070529: 745 The ether_ioctl() function has been synchronized with ioctl(2) 746 and ifnet.if_ioctl. Due to that, the size of one of its arguments 747 has changed on 64-bit architectures. All kernel modules using 748 ether_ioctl() need to be rebuilt on such architectures. 749 75020070516: 751 Improved INCLUDE_CONFIG_FILE support has been introduced to the 752 config(8) utility. In order to take advantage of this new 753 functionality, you are expected to recompile and install 754 src/usr.sbin/config. If you don't rebuild config(8), and your 755 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 756 build will be broken because of a missing "kernconfstring" 757 symbol. 758 75920070513: 760 Symbol versioning is enabled by default. To disable it, use 761 option WITHOUT_SYMVER. It is not advisable to attempt to 762 disable symbol versioning once it is enabled; your installworld 763 will break because a symbol version-less libc will get installed 764 before the install tools. As a result, the old install tools, 765 which previously had symbol dependencies to FBSD_1.0, will fail 766 because the freshly installed libc will not have them. 767 768 The default threading library (providing "libpthread") has been 769 changed to libthr. If you wish to have libkse as your default, 770 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 771 77220070423: 773 The ABI breakage in sendmail(8)'s libmilter has been repaired 774 so it is no longer necessary to recompile mail filters (aka, 775 milters). If you recompiled mail filters after the 20070408 776 note, it is not necessary to recompile them again. 777 77820070417: 779 The new trunk(4) driver has been renamed to lagg(4) as it better 780 reflects its purpose. ifconfig will need to be recompiled. 781 78220070408: 783 sendmail(8) has been updated to version 8.14.1. Mail filters 784 (aka, milters) compiled against the libmilter included in the 785 base operating system should be recompiled. 786 78720070302: 788 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 789 In order to use them one must agree to the respective LICENSE in 790 share/doc/legal and define legal.intel_<name>.license_ack=1 via 791 loader.conf(5) or kenv(1). Make sure to deinstall the now 792 deprecated modules from the respective firmware ports. 793 79420070228: 795 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 796 were removed from FreeBSD's libc. These originally came from INRIA 797 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 798 deprecated in previous releases. 799 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 800 replace it as a more portable (and re-entrant) API. 801 80220070224: 803 To support interrupt filtering a modification to the newbus API 804 has occurred, ABI was broken and __FreeBSD_version was bumped 805 to 700031. Please make sure that your kernel and modules are in 806 sync. For more info: 807 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 808 80920070224: 810 The IPv6 multicast forwarding code may now be loaded into GENERIC 811 kernels by loading the ip_mroute.ko module. This is built into the 812 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 813 set; see src.conf(5) for more information. 814 81520070214: 816 The output of netstat -r has changed. Without -n, we now only 817 print a "network name" without the prefix length if the network 818 address and mask exactly match a Class A/B/C network, and an entry 819 exists in the nsswitch "networks" map. 820 With -n, we print the full unabbreviated CIDR network prefix in 821 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 822 This change is in preparation for changes such as equal-cost 823 multipath, and to more generally assist operational deployment 824 of FreeBSD as a modern IPv4 router. 825 82620070210: 827 PIM has been turned on by default in the IPv4 multicast 828 routing code. The kernel option 'PIM' has now been removed. 829 PIM is now built by default if option 'MROUTING' is specified. 830 It may now be loaded into GENERIC kernels by loading the 831 ip_mroute.ko module. 832 83320070207: 834 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 835 has been removed. Its functionality may be achieved by explicitly 836 configuring gif(4) interfaces and using the 'phyint' keyword in 837 mrouted.conf. 838 XORP does not support source-routed IPv4 multicast tunnels nor the 839 integrated IPIP tunneling, therefore it is not affected by this 840 change. The __FreeBSD_version macro has been bumped to 700030. 841 84220061221: 843 Support for PCI Message Signalled Interrupts has been 844 re-enabled in the bge driver, only for those chips which are 845 believed to support it properly. If there are any problems, 846 MSI can be disabled completely by setting the 847 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 848 in the loader. 849 85020061214: 851 Support for PCI Message Signalled Interrupts has been 852 disabled again in the bge driver. Many revisions of the 853 hardware fail to support it properly. Support can be 854 re-enabled by removing the #define of BGE_DISABLE_MSI in 855 "src/sys/dev/bge/if_bge.c". 856 85720061214: 858 Support for PCI Message Signalled Interrupts has been added 859 to the bge driver. If there are any problems, MSI can be 860 disabled completely by setting the 'hw.pci.enable_msi' and 861 'hw.pci.enable_msix' tunables to 0 in the loader. 862 86320061205: 864 The removal of several facets of the experimental Threading 865 system from the kernel means that the proc and thread structures 866 have changed quite a bit. I suggest all kernel modules that might 867 reference these structures be recompiled.. Especially the 868 linux module. 869 87020061126: 871 Sound infrastructure has been updated with various fixes and 872 improvements. Most of the changes are pretty much transparent, 873 with exceptions of followings: 874 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 875 moved to their own dev sysctl nodes, for example: 876 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 877 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 878 own chardev in the form of "dsp%d.<function>%d", where <function> 879 is p = playback, r = record and v = virtual, respectively. Users 880 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 881 This does not affect those who are using "/dev/dsp". 882 88320061122: 884 geom(4)'s gmirror(8) class metadata structure has been 885 rev'd from v3 to v4. If you update across this point and 886 your metadata is converted for you, you will not be easily 887 able to downgrade since the /boot/kernel.old/geom_mirror.ko 888 kernel module will be unable to read the v4 metadata. You 889 can resolve this by doing from the loader(8) prompt: 890 891 set vfs.root.mountfrom="ufs:/dev/XXX" 892 893 where XXX is the root slice of one of the disks that composed 894 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 895 the array the same way you built it originally. 896 89720061122: 898 The following binaries have been disconnected from the build: 899 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 900 and mount_std. The functionality of these programs has been 901 moved into the mount program. For example, to mount a devfs 902 filesystem, instead of using mount_devfs, use: "mount -t devfs". 903 This does not affect entries in /etc/fstab, since entries in 904 /etc/fstab are always processed with "mount -t fstype". 905 90620061113: 907 Support for PCI Message Signalled Interrupts on i386 and amd64 908 has been added to the kernel and various drivers will soon be 909 updated to use MSI when it is available. If there are any problems, 910 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 911 and 'hw.pci.enable_msix' tunables to 0 in the loader. 912 91320061110: 914 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 915 The lockmgr object layout has been changed as a result of having 916 a lock_object embedded in it. As a consequence all file system 917 kernel modules must be re-compiled. The mutex profiling man page 918 has not yet been updated to reflect this change. 919 92020061026: 921 KSE in the kernel has now been made optional and turned on by 922 default. Use 'nooption KSE' in your kernel config to turn it 923 off. All kernel modules *must* be recompiled after this change. 924 There-after, modules from a KSE kernel should be compatible with 925 modules from a NOKSE kernel due to the temporary padding fields 926 added to 'struct proc'. 927 92820060929: 929 mrouted and its utilities have been removed from the base system. 930 93120060927: 932 Some ioctl(2) command codes have changed. Full backward ABI 933 compatibility is provided if the "options COMPAT_FREEBSD6" is 934 present in the kernel configuration file. Make sure to add 935 this option to your kernel config file, or recompile X.Org 936 and the rest of ports; otherwise they may refuse to work. 937 93820060924: 939 tcpslice has been removed from the base system. 940 94120060913: 942 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 943 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 944 systat needs to be rebuilt. 945 94620060903: 947 libpcap updated to v0.9.4 and tcpdump to v3.9.4 948 94920060816: 950 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 951 for IPFIREWALL_FORWARD is now as it was before when it was first 952 committed and for years after. The behaviour is now ON. 953 95420060725: 955 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 956 Now it can decrypt files created from different architectures. 957 Unfortunately, it is no longer able to decrypt a cipher text 958 generated with an older version on 64 bit architectures. 959 If you have such a file, you need old utility to decrypt it. 960 96120060709: 962 The interface version of the i4b kernel part has changed. So 963 after updating the kernel sources and compiling a new kernel, 964 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 965 be rebuilt, and vice versa. 966 96720060627: 968 The XBOX kernel now defaults to the nfe(4) driver instead of 969 the nve(4) driver. Please update your configuration 970 accordingly. 971 97220060514: 973 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 974 PCnet family of NICs has been removed. The new le(4) driver serves 975 as an equivalent but cross-platform replacement with the pcn(4) 976 driver still providing performance-optimized support for the subset 977 of AMD Am79C971 PCnet-FAST and greater chips as before. 978 97920060511: 980 The machdep.* sysctls and the adjkerntz utility have been 981 modified a bit. The new adjkerntz utility uses the new 982 sysctl names and sysctlbyname() calls, so it may be impossible 983 to run an old /sbin/adjkerntz utility in single-user mode 984 with a new kernel. Replace the `adjkerntz -i' step before 985 `make installworld' with: 986 987 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 988 989 and proceed as usual with the rest of the installworld-stage 990 steps. Otherwise, you risk installing binaries with their 991 timestamp set several hours in the future, especially if 992 you are running with local time set to GMT+X hours. 993 99420060412: 995 The ip6fw utility has been removed. The behavior provided by 996 ip6fw has been in ipfw2 for a good while and the rc.d scripts 997 have been updated to deal with it. There are some rules that 998 might not migrate cleanly. Use rc.firewall6 as a template to 999 rewrite rules. 1000 100120060428: 1002 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1003 attachments have been removed. Make sure to configure scc(4) 1004 on sparc64. Note also that by default puc(4) will use uart(4) 1005 and not sio(4) for serial ports because interrupt handling has 1006 been optimized for multi-port serial cards and only uart(4) 1007 implements the interface to support it. 1008 100920060330: 1010 The scc(4) driver replaces puc(4) for Serial Communications 1011 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1012 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1013 configuration to make sure that the serial ports remain 1014 functional. 1015 101620060317: 1017 Most world/kernel related NO_* build options changed names. 1018 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1019 after FreeBSD ports) and should be set in /etc/src.conf 1020 (the src.conf(5) manpage is provided). Full backwards 1021 compatibility is maintained for the time being though it's 1022 highly recommended to start moving old options out of the 1023 system-wide /etc/make.conf file into the new /etc/src.conf 1024 while also properly renaming them. More conversions will 1025 likely follow. Posting to current@: 1026 1027 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1028 102920060305: 1030 The NETSMBCRYPTO kernel option has been retired because its 1031 functionality is always included in NETSMB and smbfs.ko now. 1032 103320060303: 1034 The TDFX_LINUX kernel option was retired and replaced by the 1035 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1036 kernel module. Loading it alone should suffice to get 3dfx support 1037 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1038 its dependencies. 1039 104020060204: 1041 The 'audit' group was added to support the new auditing functionality 1042 in the base system. Be sure to follow the directions for updating, 1043 including the requirement to run mergemaster -p. 1044 104520060201: 1046 The kernel ABI to file system modules was changed on i386. 1047 Please make sure that your kernel and modules are in sync. 1048 104920060118: 1050 This actually occured some time ago, but installing the kernel 1051 now also installs a bunch of symbol files for the kernel modules. 1052 This increases the size of /boot/kernel to about 67Mbytes. You 1053 will need twice this if you will eventually back this up to kernel.old 1054 on your next install. 1055 If you have a shortage of room in your root partition, you should add 1056 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1057 to your /etc/make.conf. 1058 105920060113: 1060 libc's malloc implementation has been replaced. This change has the 1061 potential to uncover application bugs that previously went unnoticed. 1062 See the malloc(3) manual page for more details. 1063 106420060112: 1065 The generic netgraph(4) cookie has been changed. If you upgrade 1066 kernel passing this point, you also need to upgrade userland 1067 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1068 106920060106: 1070 si(4)'s device files now contain the unit number. 1071 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1072 107320060106: 1074 The kernel ABI was mostly destroyed due to a change in the size 1075 of struct lock_object which is nested in other structures such 1076 as mutexes which are nested in all sorts of other structures. 1077 Make sure your kernel and modules are in sync. 1078 107920051231: 1080 The page coloring algorithm in the VM subsystem was converted 1081 from tuning with kernel options to autotuning. Please remove 1082 any PQ_* option except PQ_NOOPT from your kernel config. 1083 108420051211: 1085 The net80211-related tools in the tools/tools/ath directory 1086 have been moved to tools/tools/net80211 and renamed with a 1087 "wlan" prefix. Scripts that use them should be adjusted 1088 accordingly. 1089 109020051202: 1091 Scripts in the local_startup directories (as defined in 1092 /etc/defaults/rc.conf) that have the new rc.d semantics will 1093 now be run as part of the base system rcorder. If there are 1094 errors or problems with one of these local scripts, it could 1095 cause boot problems. If you encounter such problems, boot in 1096 single user mode, remove that script from the */rc.d directory. 1097 Please report the problem to the port's maintainer, and the 1098 freebsd-ports@freebsd.org mailing list. 1099 110020051129: 1101 The nodev mount option was deprecated in RELENG_6 (where it 1102 was a no-op), and is now unsupported. If you have nodev or dev listed 1103 in /etc/fstab, remove it, otherwise it will result in a mount error. 1104 110520051129: 1106 ABI between ipfw(4) and ipfw(8) has been changed. You need 1107 to rebuild ipfw(8) when rebuilding kernel. 1108 110920051108: 1110 rp(4)'s device files now contain the unit number. 1111 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1112 111320051029: 1114 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1115 Its /etc/rc.conf.d configuration file has been `ppp' from 1116 the beginning, and hence there is no need to touch it. 1117 111820051014: 1119 Now most modules get their build-time options from the kernel 1120 configuration file. A few modules still have fixed options 1121 due to their non-conformant implementation, but they will be 1122 corrected eventually. You may need to review the options of 1123 the modules in use, explicitly specify the non-default options 1124 in the kernel configuration file, and rebuild the kernel and 1125 modules afterwards. 1126 112720051001: 1128 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1129 to turn polling(4) on your interfaces. 1130 113120050927: 1132 The old bridge(4) implementation was retired. The new 1133 if_bridge(4) serves as a full functional replacement. 1134 113520050722: 1136 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1137 to conform to POSIX-2001. This change broke an ABI 1138 compatibility on 64 bit architecture. You have to recompile 1139 userland programs that use getaddrinfo(3) on 64 bit 1140 architecture. 1141 114220050711: 1143 RELENG_6 branched here. 1144 114520050629: 1146 The pccard_ifconfig rc.conf variable has been removed and a new 1147 variable, ifconfig_DEFAULT has been introduced. Unlike 1148 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1149 do not have ifconfig_ifn entries rather than just those in 1150 removable_interfaces. 1151 115220050616: 1153 Some previous versions of PAM have permitted the use of 1154 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1155 to third party PAM modules in /usr/local/lib. A change has been 1156 made to require the use of absolute paths in order to avoid 1157 ambiguity and dependence on library path configuration, which may 1158 affect existing configurations. 1159 116020050610: 1161 Major changes to network interface API. All drivers must be 1162 recompiled. Drivers not in the base system will need to be 1163 updated to the new APIs. 1164 116520050609: 1166 Changes were made to kinfo_proc in sys/user.h. Please recompile 1167 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1168 will not behave correctly. 1169 1170 The API and ABI for hwpmc(4) have changed with the addition 1171 of sampling support. Please recompile lib/libpmc(3) and 1172 usr.sbin/{pmcstat,pmccontrol}. 1173 117420050606: 1175 The OpenBSD dhclient was imported in place of the ISC dhclient 1176 and the network interface configuration scripts were updated 1177 accordingly. If you use DHCP to configure your interfaces, you 1178 must now run devd. Also, DNS updating was lost so you will need 1179 to find a workaround if you use this feature. 1180 1181 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1182 sure to run mergemaster -p (like you are supposed to do every time 1183 anyway). 1184 118520050605: 1186 if_bridge was added to the tree. This has changed struct ifnet. 1187 Please recompile userland and all network related modules. 1188 118920050603: 1190 The n_net of a struct netent was changed to an uint32_t, and 1191 1st argument of getnetbyaddr() was changed to an uint32_t, to 1192 conform to POSIX-2001. These changes broke an ABI 1193 compatibility on 64 bit architecture. With these changes, 1194 shlib major of libpcap was bumped. You have to recompile 1195 userland programs that use getnetbyaddr(3), getnetbyname(3), 1196 getnetent(3) and/or libpcap on 64 bit architecture. 1197 119820050528: 1199 Kernel parsing of extra options on '#!' first lines of shell 1200 scripts has changed. Lines with multiple options likely will 1201 fail after this date. For full details, please see 1202 http://people.freebsd.org/~gad/Updating-20050528.txt 1203 120420050503: 1205 The packet filter (pf) code has been updated to OpenBSD 3.7 1206 Please note the changed anchor syntax and the fact that 1207 authpf(8) now needs a mounted fdescfs(5) to function. 1208 120920050415: 1210 The NO_MIXED_MODE kernel option has been removed from the i386 1211 amd64 platforms as its use has been superceded by the new local 1212 APIC timer code. Any kernel config files containing this option 1213 should be updated. 1214 121520050227: 1216 The on-disk format of LC_CTYPE files was changed to be machine 1217 independent. Please make sure NOT to use NO_CLEAN buildworld 1218 when crossing this point. Crossing this point also requires 1219 recompile or reinstall of all locale depended packages. 1220 122120050225: 1222 The ifi_epoch member of struct if_data has been changed to 1223 contain the uptime at which the interface was created or the 1224 statistics zeroed rather then the wall clock time because 1225 wallclock time may go backwards. This should have no impact 1226 unless an snmp implementation is using this value (I know of 1227 none at this point.) 1228 122920050224: 1230 The acpi_perf and acpi_throttle drivers are now part of the 1231 acpi(4) main module. They are no longer built separately. 1232 123320050223: 1234 The layout of struct image_params has changed. You have to 1235 recompile all compatibility modules (linux, svr4, etc) for use 1236 with the new kernel. 1237 123820050223: 1239 The p4tcc driver has been merged into cpufreq(4). This makes 1240 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1241 compile in "device cpufreq" to restore this functionality. 1242 124320050220: 1244 The responsibility of recomputing the file system summary of 1245 a SoftUpdates-enabled dirty volume has been transferred to the 1246 background fsck. A rebuild of fsck(8) utility is recommended 1247 if you have updated the kernel. 1248 1249 To get the old behavior (recompute file system summary at mount 1250 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1251 mounting the new volume. 1252 125320050206: 1254 The cpufreq import is complete. As part of this, the sysctls for 1255 acpi(4) throttling have been removed. The power_profile script 1256 has been updated, so you can use performance/economy_cpu_freq in 1257 rc.conf(5) to set AC on/offline cpu frequencies. 1258 125920050206: 1260 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1261 requires recompiling libnetgraph and userland netgraph utilities. 1262 126320050114: 1264 Support for abbreviated forms of a number of ipfw options is 1265 now deprecated. Warnings are printed to stderr indicating the 1266 correct full form when a match occurs. Some abbreviations may 1267 be supported at a later date based on user feedback. To be 1268 considered for support, abbreviations must be in use prior to 1269 this commit and unlikely to be confused with current key words. 1270 127120041221: 1272 By a popular demand, a lot of NOFOO options were renamed 1273 to NO_FOO (see bsd.compat.mk for a full list). The old 1274 spellings are still supported, but will cause annoying 1275 warnings on stderr. Make sure you upgrade properly (see 1276 the COMMON ITEMS: section later in this file). 1277 127820041219: 1279 Auto-loading of ancillary wlan modules such as wlan_wep has 1280 been temporarily disabled; you need to statically configure 1281 the modules you need into your kernel or explicitly load them 1282 prior to use. Specifically, if you intend to use WEP encryption 1283 with an 802.11 device load/configure wlan_wep; if you want to 1284 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1285 and wlan_xauth as required. 1286 128720041213: 1288 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1289 (``enable lqr''), older versions would revert to LCP ECHO mode on 1290 negotiation failure. Now, ``enable echo'' is required for this 1291 behaviour. The ppp version number has been bumped to 3.4.2 to 1292 reflect the change. 1293 129420041201: 1295 The wlan support has been updated to split the crypto support 1296 into separate modules. For static WEP you must configure the 1297 wlan_wep module in your system or build and install the module 1298 in place where it can be loaded (the kernel will auto-load 1299 the module when a wep key is configured). 1300 130120041201: 1302 The ath driver has been updated to split the tx rate control 1303 algorithm into a separate module. You need to include either 1304 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1305 130620041116: 1307 Support for systems with an 80386 CPU has been removed. Please 1308 use FreeBSD 5.x or earlier on systems with an 80386. 1309 131020041110: 1311 We have had a hack which would mount the root filesystem 1312 R/W if the device were named 'md*'. As part of the vnode 1313 work I'm doing I have had to remove this hack. People 1314 building systems which use preloaded MD root filesystems 1315 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1316 their /etc/rc scripts. 1317 131820041104: 1319 FreeBSD 5.3 shipped here. 1320 132120041102: 1322 The size of struct tcpcb has changed again due to the removal 1323 of RFC1644 T/TCP. You have to recompile userland programs that 1324 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1325 132620041022: 1327 The size of struct tcpcb has changed. You have to recompile 1328 userland programs that read kmem for tcp sockets directly 1329 (netstat, sockstat, etc.) 1330 133120041016: 1332 RELENG_5 branched here. For older entries, please see updating 1333 in the RELENG_5 branch. 1334 1335COMMON ITEMS: 1336 1337 General Notes 1338 ------------- 1339 Avoid using make -j when upgrading. From time to time in the 1340 past there have been problems using -j with buildworld and/or 1341 installworld. This is especially true when upgrading between 1342 "distant" versions (eg one that cross a major release boundary 1343 or several minor releases, or when several months have passed 1344 on the -current branch). 1345 1346 Sometimes, obscure build problems are the result of environment 1347 poisoning. This can happen because the make utility reads its 1348 environment when searching for values for global variables. 1349 To run your build attempts in an "environmental clean room", 1350 prefix all make commands with 'env -i '. See the env(1) manual 1351 page for more details. 1352 1353 When upgrading from one major version to another it is generally 1354 best to upgrade to the latest code in the currently installed branch 1355 first, then do an upgrade to the new branch. This is the best-tested 1356 upgrade path, and has the highest probability of being successful. 1357 Please try this approach before reporting problems with a major 1358 version upgrade. 1359 1360 To build a kernel 1361 ----------------- 1362 If you are updating from a prior version of FreeBSD (even one just 1363 a few days old), you should follow this procedure. It is the most 1364 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1365 1366 make kernel-toolchain 1367 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1368 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1369 1370 To test a kernel once 1371 --------------------- 1372 If you just want to boot a kernel once (because you are not sure 1373 if it works, or if you want to boot a known bad kernel to provide 1374 debugging information) run 1375 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1376 nextboot -k testkernel 1377 1378 To just build a kernel when you know that it won't mess you up 1379 -------------------------------------------------------------- 1380 This assumes you are already running a 5.X system. Replace 1381 ${arch} with the architecture of your machine (e.g. "i386", 1382 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1383 1384 cd src/sys/${arch}/conf 1385 config KERNEL_NAME_HERE 1386 cd ../compile/KERNEL_NAME_HERE 1387 make depend 1388 make 1389 make install 1390 1391 If this fails, go to the "To build a kernel" section. 1392 1393 To rebuild everything and install it on the current system. 1394 ----------------------------------------------------------- 1395 # Note: sometimes if you are running current you gotta do more than 1396 # is listed here if you are upgrading from a really old current. 1397 1398 <make sure you have good level 0 dumps> 1399 make buildworld 1400 make kernel KERNCONF=YOUR_KERNEL_HERE 1401 [1] 1402 <reboot in single user> [3] 1403 mergemaster -p [5] 1404 make installworld 1405 make delete-old 1406 mergemaster [4] 1407 <reboot> 1408 1409 1410 To cross-install current onto a separate partition 1411 -------------------------------------------------- 1412 # In this approach we use a separate partition to hold 1413 # current's root, 'usr', and 'var' directories. A partition 1414 # holding "/", "/usr" and "/var" should be about 2GB in 1415 # size. 1416 1417 <make sure you have good level 0 dumps> 1418 <boot into -stable> 1419 make buildworld 1420 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1421 <maybe newfs current's root partition> 1422 <mount current's root partition on directory ${CURRENT_ROOT}> 1423 make installworld DESTDIR=${CURRENT_ROOT} 1424 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1425 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1426 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1427 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1428 <reboot into current> 1429 <do a "native" rebuild/install as described in the previous section> 1430 <maybe install compatibility libraries from ports/misc/compat*> 1431 <reboot> 1432 1433 1434 To upgrade in-place from 5.x-stable to current 1435 ---------------------------------------------- 1436 <make sure you have good level 0 dumps> 1437 make buildworld [9] 1438 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1439 [1] 1440 <reboot in single user> [3] 1441 mergemaster -p [5] 1442 make installworld 1443 make delete-old 1444 mergemaster -i [4] 1445 <reboot> 1446 1447 Make sure that you've read the UPDATING file to understand the 1448 tweaks to various things you need. At this point in the life 1449 cycle of current, things change often and you are on your own 1450 to cope. The defaults can also change, so please read ALL of 1451 the UPDATING entries. 1452 1453 Also, if you are tracking -current, you must be subscribed to 1454 freebsd-current@freebsd.org. Make sure that before you update 1455 your sources that you have read and understood all the recent 1456 messages there. If in doubt, please track -stable which has 1457 much fewer pitfalls. 1458 1459 [1] If you have third party modules, such as vmware, you 1460 should disable them at this point so they don't crash your 1461 system on reboot. 1462 1463 [3] From the bootblocks, boot -s, and then do 1464 fsck -p 1465 mount -u / 1466 mount -a 1467 cd src 1468 adjkerntz -i # if CMOS is wall time 1469 Also, when doing a major release upgrade, it is required that 1470 you boot into single user mode to do the installworld. 1471 1472 [4] Note: This step is non-optional. Failure to do this step 1473 can result in a significant reduction in the functionality of the 1474 system. Attempting to do it by hand is not recommended and those 1475 that pursue this avenue should read this file carefully, as well 1476 as the archives of freebsd-current and freebsd-hackers mailing lists 1477 for potential gotchas. 1478 1479 [5] Usually this step is a noop. However, from time to time 1480 you may need to do this if you get unknown user in the following 1481 step. It never hurts to do it all the time. You may need to 1482 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1483 install) after the buildworld before this step if you last updated 1484 from current before 20020224 or from -stable before 20020408. 1485 1486 [8] In order to have a kernel that can run the 4.x binaries 1487 needed to do an installworld, you must include the COMPAT_FREEBSD4 1488 option in your kernel. Failure to do so may leave you with a system 1489 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1490 is required to run the 5.x binaries on more recent kernels. 1491 1492 Make sure that you merge any new devices from GENERIC since the 1493 last time you updated your kernel config file. 1494 1495 [9] When checking out sources, you must include the -P flag to have 1496 cvs prune empty directories. 1497 1498 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1499 "?=" instead of the "=" assignment operator, so that buildworld can 1500 override the CPUTYPE if it needs to. 1501 1502 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1503 not on the command line, or in /etc/make.conf. buildworld will 1504 warn if it is improperly defined. 1505FORMAT: 1506 1507This file contains a list, in reverse chronological order, of major 1508breakages in tracking -current. Not all things will be listed here, 1509and it only starts on October 16, 2004. Updating files can found in 1510previous releases if your system is older than this. 1511 1512Copyright information: 1513 1514Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1515 1516Redistribution, publication, translation and use, with or without 1517modification, in full or in part, in any form or format of this 1518document are permitted without further permission from the author. 1519 1520THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1521IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1522WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1523DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1524INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1525(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1526SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1527HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1528STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1529IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1530POSSIBILITY OF SUCH DAMAGE. 1531 1532If you find this document useful, and you want to, you may buy the 1533author a beer. 1534 1535Contact Warner Losh if you have any questions about your use of 1536this document. 1537 1538$FreeBSD: head/UPDATING 192669 2009-05-23 21:43:44Z zec $ 1539