UPDATING revision 194317
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 2520090616: 26 The compiling option ADAPTIVE_LOCKMGRS has been introduced. 27 This option compiles in the support for adaptive spinning for lockmgrs 28 which want to enable it. The lockinit() function now accepts the 29 flag LK_ADAPTIVE in order to make the lock object subject to 30 adaptive spinning when both held in write and read mode. 31 3220090613: 33 The layout of the structure returned by IEEE80211_IOC_STA_INFO 34 has changed. User applications that use this ioctl need to be 35 rebuilt. 36 3720090611: 38 The layout of struct thread has changed. Kernel and modules 39 need to be rebuilt. 40 4120090608: 42 The layout of structs ifnet, domain, protosw and vnet_net has 43 changed. Kernel modules need to be rebuilt. 44 Bump __FreeBSD_version to 800097. 45 4620090602: 47 window(1) has been removed from the base system. It can now be 48 installed from ports. The port is called misc/window. 49 5020090601: 51 The way we are storing and accessing `routing table' entries 52 has changed. Programs reading the FIB, like netstat, need to 53 be re-compiled. 54 5520090601: 56 A new netisr implementation has been added for FreeBSD 8. Network 57 file system modules, such as igmp, ipdivert, and others, should be 58 rebuilt. 59 Bump __FreeBSD_version to 800096. 60 6120090531: 62 For those who use ipfw and especially pf, those two firewalls 63 are now started BEFORE the network is initialized (i.e., before 64 rc.d/netif). Please review your rules to make sure that your 65 interfaces will be properly described. 66 6720090530: 68 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose 69 is no more valid. 70 7120090530: 72 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 73 Bump __FreeBSD_version to 800094. 74 7520090529: 76 Add mnt_xflag field to 'struct mount'. File system modules 77 need to be rebuilt. 78 Bump __FreeBSD_version to 800093. 79 8020090528: 81 The compiling option ADAPTIVE_SX has been retired while it has been 82 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 83 The KPI for sx_init_flags() changes as accepting flags: 84 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 85 has been introduced in order to handle the reversed logic. 86 Bump __FreeBSD_version to 800092. 87 8820090527: 89 Add support for hierarchical jails. Remove global securelevel. 90 Bump __FreeBSD_version to 800091. 91 9220090523: 93 The layout of struct vnet_net has changed, therefore modules 94 need to be rebuilt. 95 Bump __FreeBSD_version to 800090. 96 9720090523: 98 The newly imported zic(8) produces a new format in the 99 output. Please run tzsetup(8) to install the newly created 100 data to /etc/localtime. 101 10220090520: 103 The sysctl tree for the usb stack has renamed from hw.usb2.* to 104 hw.usb.* and is now consistent again with previous releases. 105 10620090520: 107 802.11 monitor mode support was revised and driver api's 108 were changed. Drivers dependent on net80211 now support 109 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 110 user-visible data structures were changed but applications 111 that use DLT_IEEE802_11 may require changes. 112 Bump __FreeBSD_version to 800088. 113 11420090430: 115 The layout of the following structs has changed: sysctl_oid, 116 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 117 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 118 panics may be experienced. World rebuild is required for 119 correctly checking networking state from userland. 120 Bump __FreeBSD_version to 800085. 121 12220090429: 123 MLDv2 and Source-Specific Multicast (SSM) have been merged 124 to the IPv6 stack. VIMAGE hooks are in but not yet used. 125 The implementation of SSM within FreeBSD's IPv6 stack closely 126 follows the IPv4 implementation. 127 128 For kernel developers: 129 130 * The most important changes are that the ip6_output() and 131 ip6_input() paths no longer take the IN6_MULTI_LOCK, 132 and this lock has been downgraded to a non-recursive mutex. 133 134 * As with the changes to the IPv4 stack to support SSM, filtering 135 of inbound multicast traffic must now be performed by transport 136 protocols within the IPv6 stack. This does not apply to TCP and 137 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 138 139 * The KPIs used by IPv6 multicast are similar to those used by 140 the IPv4 stack, with the following differences: 141 * im6o_mc_filter() is analogous to imo_multicast_filter(). 142 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 143 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 144 * IN6_LOOKUP_MULTI() has been deprecated and removed. 145 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 146 for MLDv1 have an additional 'timer' argument which is used to 147 jitter the initial membership report for the solicited-node 148 multicast membership on-link. 149 * This is not strictly needed for MLDv2, which already jitters 150 its report transmissions. However, the 'timer' argument is 151 preserved in case MLDv1 is active on the interface. 152 153 * The KAME linked-list based IPv6 membership implementation has 154 been refactored to use a vector similar to that used by the IPv4 155 stack. 156 Code which maintains a list of its own multicast memberships 157 internally, e.g. carp, has been updated to reflect the new 158 semantics. 159 160 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 161 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 162 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 163 implementation constraint which needs to be addressed in HEAD. 164 165 For application developers: 166 167 * The changes are broadly similar to those made for the IPv4 168 stack. 169 170 * The use of IPv4 and IPv6 multicast socket options on the same 171 socket, using mapped addresses, HAS NOT been tested or supported. 172 173 * There are a number of issues with the implementation of various 174 IPv6 multicast APIs which need to be resolved in the API surface 175 before the implementation is fully compatible with KAME userland 176 use, and these are mostly to do with interface index treatment. 177 178 * The literature available discusses the use of either the delta / ASM 179 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 180 using setsourcefilter(3)/getsourcefilter(3). For more information 181 please refer to RFC 3768, 'Socket Interface Extensions for 182 Multicast Source Filters'. 183 184 * Applications which use the published RFC 3678 APIs should be fine. 185 186 For systems administrators: 187 188 * The mtest(8) utility has been refactored to support IPv6, in 189 addition to IPv4. Interface addresses are no longer accepted 190 as arguments, their names must be used instead. The utility 191 will map the interface name to its first IPv4 address as 192 returned by getifaddrs(3). 193 194 * The ifmcstat(8) utility has also been updated to print the MLDv2 195 endpoint state and source filter lists via sysctl(3). 196 197 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 198 loopback of IPv6 multicast datagrams by default; it defaults to 1 199 to preserve the existing behaviour. Disabling multicast loopback is 200 recommended for optimal system performance. 201 202 * The IPv6 MROUTING code has been changed to examine this sysctl 203 instead of attempting to perform a group lookup before looping 204 back forwarded datagrams. 205 206 Bump __FreeBSD_version to 800084. 207 20820090422: 209 Implement low-level Bluetooth HCI API. 210 Bump __FreeBSD_version to 800083. 211 21220090419: 213 The layout of struct malloc_type, used by modules to register new 214 memory allocation types, has changed. Most modules will need to 215 be rebuilt or panics may be experienced. 216 Bump __FreeBSD_version to 800081. 217 21820090415: 219 Anticipate overflowing inp_flags - add inp_flags2. 220 This changes most offsets in inpcb, so checking v4 connection 221 state will require a world rebuild. 222 Bump __FreeBSD_version to 800080. 223 22420090415: 225 Add an llentry to struct route and struct route_in6. Modules 226 embedding a struct route will need to be recompiled. 227 Bump __FreeBSD_version to 800079. 228 22920090414: 230 The size of rt_metrics_lite and by extension rtentry has changed. 231 Networking administration apps will need to be recompiled. 232 The route command now supports show as an alias for get, weighting 233 of routes, sticky and nostick flags to alter the behavior of stateful 234 load balancing. 235 Bump __FreeBSD_version to 800078. 236 23720090408: 238 Do not use Giant for kbdmux(4) locking. This is wrong and 239 apparently causing more problems than it solves. This will 240 re-open the issue where interrupt handlers may race with 241 kbdmux(4) in polling mode. Typical symptoms include (but 242 not limited to) duplicated and/or missing characters when 243 low level console functions (such as gets) are used while 244 interrupts are enabled (for example geli password prompt, 245 mountroot prompt etc.). Disabling kbdmux(4) may help. 246 24720090407: 248 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 249 kernel modules referencing any of the above need to be recompiled. 250 Bump __FreeBSD_version to 800075. 251 25220090320: 253 GEOM_PART has become the default partition slicer for storage devices, 254 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 255 introduces some changes: 256 257 MSDOS/EBR: the devices created from MSDOS extended partition entries 258 (EBR) can be named differently than with GEOM_MBR and are now symlinks 259 to devices with offset-based names. fstabs may need to be modified. 260 261 BSD: the "geometry does not match label" warning is harmless in most 262 cases but it points to problems in file system misalignment with 263 disk geometry. The "c" partition is now implicit, covers the whole 264 top-level drive and cannot be (mis)used by users. 265 266 General: Kernel dumps are now not allowed to be written to devices 267 whose partition types indicate they are meant to be used for file 268 systems (or, in case of MSDOS partitions, as something else than 269 the "386BSD" type). 270 271 Most of these changes date approximately from 200812. 272 27320090319: 274 The uscanner(4) driver has been removed from the kernel. This follows 275 Linux removing theirs in 2.6 and making libusb the default interface 276 (supported by sane). 277 27820090319: 279 The multicast forwarding code has been cleaned up. netstat(1) 280 only relies on KVM now for printing bandwidth upcall meters. 281 The IPv4 and IPv6 modules are split into ip_mroute_mod and 282 ip6_mroute_mod respectively. The config(5) options for statically 283 compiling this code remain the same, i.e. 'options MROUTING'. 284 28520090315: 286 Support for the IFF_NEEDSGIANT network interface flag has been 287 removed, which means that non-MPSAFE network device drivers are no 288 longer supported. In particular, if_ar, if_sr, and network device 289 drivers from the old (legacy) USB stack can no longer be built or 290 used. 291 29220090313: 293 POSIX.1 Native Language Support (NLS) has been enabled in libc and 294 a bunch of new language catalog files have also been added. 295 This means that some common libc messages are now localized and 296 they depend on the LC_MESSAGES environmental variable. 297 29820090313: 299 The k8temp(4) driver has been renamed to amdtemp(4) since 300 support for K10 and K11 CPU families was added. 301 30220090309: 303 IGMPv3 and Source-Specific Multicast (SSM) have been merged 304 to the IPv4 stack. VIMAGE hooks are in but not yet used. 305 306 For kernel developers, the most important changes are that the 307 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 308 and this lock has been downgraded to a non-recursive mutex. 309 310 Transport protocols (UDP, Raw IP) are now responsible for filtering 311 inbound multicast traffic according to group membership and source 312 filters. The imo_multicast_filter() KPI exists for this purpose. 313 Transports which do not use multicast (SCTP, TCP) already reject 314 multicast by default. Forwarding and receive performance may improve 315 as a mutex acquisition is no longer needed in the ip_input() 316 low-level input path. in_addmulti() and in_delmulti() are shimmed 317 to new KPIs which exist to support SSM in-kernel. 318 319 For application developers, it is recommended that loopback of 320 multicast datagrams be disabled for best performance, as this 321 will still cause the lock to be taken for each looped-back 322 datagram transmission. The net.inet.ip.mcast.loop sysctl may 323 be tuned to 0 to disable loopback by default; it defaults to 1 324 to preserve the existing behaviour. 325 326 For systems administrators, to obtain best performance with 327 multicast reception and multiple groups, it is always recommended 328 that a card with a suitably precise hash filter is used. Hash 329 collisions will still result in the lock being taken within the 330 transport protocol input path to check group membership. 331 332 If deploying FreeBSD in an environment with IGMP snooping switches, 333 it is recommended that the net.inet.igmp.sendlocal sysctl remain 334 enabled; this forces 224.0.0.0/24 group membership to be announced 335 via IGMP. 336 337 The size of 'struct igmpstat' has changed; netstat needs to be 338 recompiled to reflect this. 339 Bump __FreeBSD_version to 800070. 340 34120090309: 342 libusb20.so.1 is now installed as libusb.so.1 and the ports system 343 updated to use it. This requires a buildworld/installworld in order to 344 update the library and dependencies (usbconfig, etc). Its advisable to 345 rebuild all ports which uses libusb. More specific directions are given 346 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 347 libusb are no longer required and can be removed. 348 34920090302: 350 A workaround is committed to allow the creation of System V shared 351 memory segment of size > 2 GB on the 64-bit architectures. 352 Due to a limitation of the existing ABI, the shm_segsz member 353 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 354 wrong for large segments. Note that limits must be explicitly 355 raised to allow such segments to be created. 356 35720090301: 358 The layout of struct ifnet has changed, requiring a rebuild of all 359 network device driver modules. 360 36120090227: 362 The /dev handling for the new USB stack has changed, a 363 buildworld/installworld is required for libusb20. 364 36520090223: 366 The new USB2 stack has now been permanently moved in and all kernel and 367 module names reverted to their previous values (eg, usb, ehci, ohci, 368 ums, ...). The old usb stack can be compiled in by prefixing the name 369 with the letter 'o', the old usb modules have been removed. 370 Updating entry 20090216 for xorg and 20090215 for libmap may still 371 apply. 372 37320090217: 374 The rc.conf(5) option if_up_delay has been renamed to 375 defaultroute_delay to better reflect its purpose. If you have 376 customized this setting in /etc/rc.conf you need to update it to 377 use the new name. 378 37920090216: 380 xorg 7.4 wants to configure its input devices via hald which does not 381 yet work with USB2. If the keyboard/mouse does not work in xorg then 382 add 383 Option "AllowEmptyInput" "off" 384 to your ServerLayout section. This will cause X to use the configured 385 kbd and mouse sections from your xorg.conf. 386 38720090215: 388 The GENERIC kernels for all architectures now default to the new USB2 389 stack. No kernel config options or code have been removed so if a 390 problem arises please report it and optionally revert to the old USB 391 stack. If you are loading USB kernel modules or have a custom kernel 392 that includes GENERIC then ensure that usb names are also changed over, 393 eg uftdi -> usb2_serial_ftdi. 394 395 Older programs linked against the ports libusb 0.1 need to be 396 redirected to the new stack's libusb20. /etc/libmap.conf can 397 be used for this: 398 # Map old usb library to new one for usb2 stack 399 libusb-0.1.so.8 libusb20.so.1 400 40120090203: 402 The ichsmb(4) driver has been changed to require SMBus slave 403 addresses be left-justified (xxxxxxx0b) rather than right-justified. 404 All of the other SMBus controller drivers require left-justified 405 slave addresses, so this change makes all the drivers provide the 406 same interface. 407 40820090201: 409 INET6 statistics (struct ip6stat) was updated. 410 netstat(1) needs to be recompiled. 411 41220090119: 413 NTFS has been removed from GENERIC kernel on amd64 to match 414 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 415 will load ntfs.ko module automatically when NTFS support is 416 actually needed, unless ntfs.ko is not installed or security 417 level prohibits loading kernel modules. If either is the case, 418 "options NTFS" has to be added into kernel config. 419 42020090115: 421 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 422 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 423 800061. User space tools that rely on the size of struct tcpcb in 424 tcp_var.h (e.g. sockstat) need to be recompiled. 425 42620081225: 427 ng_tty(4) module updated to match the new TTY subsystem. 428 Due to API change, user-level applications must be updated. 429 New API support added to mpd5 CVS and expected to be present 430 in next mpd5.3 release. 431 43220081219: 433 With __FreeBSD_version 800060 the makefs tool is part of 434 the base system (it was a port). 435 43620081216: 437 The afdata and ifnet locks have been changed from mutexes to 438 rwlocks, network modules will need to be re-compiled. 439 44020081214: 441 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 442 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 443 The new code reduced struct rtentry{} by 16 bytes on 32-bit 444 architecture and 40 bytes on 64-bit architecture. The userland 445 applications "arp" and "ndp" have been updated accordingly. 446 The output from "netstat -r" shows only routing entries and 447 none of the L2 information. 448 44920081130: 450 __FreeBSD_version 800057 marks the switchover from the 451 binary ath hal to source code. Users must add the line: 452 453 options AH_SUPPORT_AR5416 454 455 to their kernel config files when specifying: 456 457 device ath_hal 458 459 The ath_hal module no longer exists; the code is now compiled 460 together with the driver in the ath module. It is now 461 possible to tailor chip support (i.e. reduce the set of chips 462 and thereby the code size); consult ath_hal(4) for details. 463 46420081121: 465 __FreeBSD_version 800054 adds memory barriers to 466 <machine/atomic.h>, new interfaces to ifnet to facilitate 467 multiple hardware transmit queues for cards that support 468 them, and a lock-less ring-buffer implementation to 469 enable drivers to more efficiently manage queueing of 470 packets. 471 47220081117: 473 A new version of ZFS (version 13) has been merged to -HEAD. 474 This version has zpool attribute "listsnapshots" off by 475 default, which means "zfs list" does not show snapshots, 476 and is the same as Solaris behavior. 477 47820081028: 479 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 480 48120081009: 482 The uhci, ohci, ehci and slhci USB Host controller drivers have 483 been put into separate modules. If you load the usb module 484 separately through loader.conf you will need to load the 485 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 486 controller add the following to loader.conf: 487 488 uhci_load="YES" 489 ehci_load="YES" 490 49120081009: 492 The ABI used by the PMC toolset has changed. Please keep 493 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 494 sync. 495 49620080820: 497 The TTY subsystem of the kernel has been replaced by a new 498 implementation, which provides better scalability and an 499 improved driver model. Most common drivers have been migrated to 500 the new TTY subsystem, while others have not. The following 501 drivers have not yet been ported to the new TTY layer: 502 503 PCI/ISA: 504 cy, digi, rc, rp, sio 505 506 USB: 507 ubser, ucycom 508 509 Line disciplines: 510 ng_h4, ng_tty, ppp, sl, snp 511 512 Adding these drivers to your kernel configuration file shall 513 cause compilation to fail. 514 51520080818: 516 ntpd has been upgraded to 4.2.4p5. 517 51820080801: 519 OpenSSH has been upgraded to 5.1p1. 520 521 For many years, FreeBSD's version of OpenSSH preferred DSA 522 over RSA for host and user authentication keys. With this 523 upgrade, we've switched to the vendor's default of RSA over 524 DSA. This may cause upgraded clients to warn about unknown 525 host keys even for previously known hosts. Users should 526 follow the usual procedure for verifying host keys before 527 accepting the RSA key. 528 529 This can be circumvented by setting the "HostKeyAlgorithms" 530 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 531 command line. 532 533 Please note that the sequence of keys offered for 534 authentication has been changed as well. You may want to 535 specify IdentityFile in a different order to revert this 536 behavior. 537 53820080713: 539 The sio(4) driver has been removed from the i386 and amd64 540 kernel configuration files. This means uart(4) is now the 541 default serial port driver on those platforms as well. 542 543 To prevent collisions with the sio(4) driver, the uart(4) driver 544 uses different names for its device nodes. This means the 545 onboard serial port will now most likely be called "ttyu0" 546 instead of "ttyd0". You may need to reconfigure applications to 547 use the new device names. 548 549 When using the serial port as a boot console, be sure to update 550 /boot/device.hints and /etc/ttys before booting the new kernel. 551 If you forget to do so, you can still manually specify the hints 552 at the loader prompt: 553 554 set hint.uart.0.at="isa" 555 set hint.uart.0.port="0x3F8" 556 set hint.uart.0.flags="0x10" 557 set hint.uart.0.irq="4" 558 boot -s 559 56020080609: 561 The gpt(8) utility has been removed. Use gpart(8) to partition 562 disks instead. 563 56420080603: 565 The version that Linuxulator emulates was changed from 2.4.2 566 to 2.6.16. If you experience any problems with Linux binaries 567 please try to set sysctl compat.linux.osrelease to 2.4.2 and 568 if it fixes the problem contact emulation mailing list. 569 57020080525: 571 ISDN4BSD (I4B) was removed from the src tree. You may need to 572 update a your kernel configuration and remove relevant entries. 573 57420080509: 575 I have checked in code to support multiple routing tables. 576 See the man pages setfib(1) and setfib(2). 577 This is a hopefully backwards compatible version, 578 but to make use of it you need to compile your kernel 579 with options ROUTETABLES=2 (or more up to 16). 580 58120080420: 582 The 802.11 wireless support was redone to enable multi-bss 583 operation on devices that are capable. The underlying device 584 is no longer used directly but instead wlanX devices are 585 cloned with ifconfig. This requires changes to rc.conf files. 586 For example, change: 587 ifconfig_ath0="WPA DHCP" 588 to 589 wlans_ath0=wlan0 590 ifconfig_wlan0="WPA DHCP" 591 see rc.conf(5) for more details. In addition, mergemaster of 592 /etc/rc.d is highly recommended. Simultaneous update of userland 593 and kernel wouldn't hurt either. 594 595 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 596 modules were merged into the base wlan module. All references 597 to these modules (e.g. in kernel config files) must be removed. 598 59920080408: 600 psm(4) has gained write(2) support in native operation level. 601 Arbitrary commands can be written to /dev/psm%d and status can 602 be read back from it. Therefore, an application is responsible 603 for status validation and error recovery. It is a no-op in 604 other operation levels. 605 60620080312: 607 Support for KSE threading has been removed from the kernel. To 608 run legacy applications linked against KSE libmap.conf may 609 be used. The following libmap.conf may be used to ensure 610 compatibility with any prior release: 611 612 libpthread.so.1 libthr.so.1 613 libpthread.so.2 libthr.so.2 614 libkse.so.3 libthr.so.3 615 61620080301: 617 The layout of struct vmspace has changed. This affects libkvm 618 and any executables that link against libkvm and use the 619 kvm_getprocs() function. In particular, but not exclusively, 620 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 621 The effects are minimal, but it's advisable to upgrade world 622 nonetheless. 623 62420080229: 625 The latest em driver no longer has support in it for the 626 82575 adapter, this is now moved to the igb driver. The 627 split was done to make new features that are incompatible 628 with older hardware easier to do. 629 63020080220: 631 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 632 likewise the kernel option is now GEOM_LINUX_LVM. 633 63420080211: 635 The default NFS mount mode has changed from UDP to TCP for 636 increased reliability. If you rely on (insecurely) NFS 637 mounting across a firewall you may need to update your 638 firewall rules. 639 64020080208: 641 Belatedly note the addition of m_collapse for compacting 642 mbuf chains. 643 64420080126: 645 The fts(3) structures have been changed to use adequate 646 integer types for their members and so to be able to cope 647 with huge file trees. The old fts(3) ABI is preserved 648 through symbol versioning in libc, so third-party binaries 649 using fts(3) should still work, although they will not take 650 advantage of the extended types. At the same time, some 651 third-party software might fail to build after this change 652 due to unportable assumptions made in its source code about 653 fts(3) structure members. Such software should be fixed 654 by its vendor or, in the worst case, in the ports tree. 655 FreeBSD_version 800015 marks this change for the unlikely 656 case that a portable fix is impossible. 657 65820080123: 659 To upgrade to -current after this date, you must be running 660 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 661 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 662 66320071128: 664 The ADAPTIVE_GIANT kernel option has been retired because its 665 functionality is the default now. 666 66720071118: 668 The AT keyboard emulation of sunkbd(4) has been turned on 669 by default. In order to make the special symbols of the Sun 670 keyboards driven by sunkbd(4) work under X these now have 671 to be configured the same way as Sun USB keyboards driven 672 by ukbd(4) (which also does AT keyboard emulation), f.e.: 673 674 Option "XkbLayout" "us" 675 Option "XkbRules" "xorg" 676 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 677 67820071024: 679 It has been decided that it is desirable to provide ABI 680 backwards compatibility to the FreeBSD 4/5/6 versions of the 681 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 682 broken with the introduction of PCI domain support (see the 683 20070930 entry). Unfortunately, this required the ABI of 684 PCIOCGETCONF to be broken again in order to be able to 685 provide backwards compatibility to the old version of that 686 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 687 again. As for prominent ports this affects neither pciutils 688 nor xorg-server this time, the hal port needs to be rebuilt 689 however. 690 69120071020: 692 The misnamed kthread_create() and friends have been renamed 693 to kproc_create() etc. Many of the callers already 694 used kproc_start().. 695 I will return kthread_create() and friends in a while 696 with implementations that actually create threads, not procs. 697 Renaming corresponds with version 800002. 698 69920071010: 700 RELENG_7 branched. 701 70220071009: 703 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 704 WITHOUT_LIBTHR are set. 705 70620070930: 707 The PCI code has been made aware of PCI domains. This means that 708 the location strings as used by pciconf(8) etc are now in the 709 following format: pci<domain>:<bus>:<device>[:<function>]. It 710 also means that consumers of <sys/pciio.h> potentially need to 711 be recompiled; this includes the hal and xorg-server ports. 712 71320070928: 714 The caching daemon (cached) was renamed to nscd. nscd.conf 715 configuration file should be used instead of cached.conf and 716 nscd_enable, nscd_pidfile and nscd_flags options should be used 717 instead of cached_enable, cached_pidfile and cached_flags in 718 rc.conf. 719 72020070921: 721 The getfacl(1) utility now prints owning user and group name 722 instead of owning uid and gid in the three line comment header. 723 This is the same behavior as getfacl(1) on Solaris and Linux. 724 72520070704: 726 The new IPsec code is now compiled in using the IPSEC option. The 727 IPSEC option now requires "device crypto" be defined in your kernel 728 configuration. The FAST_IPSEC kernel option is now deprecated. 729 73020070702: 731 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 732 note the changed syntax - keep state is now on by default. Also 733 note the fact that ftp-proxy(8) has been changed from bottom up and 734 has been moved from libexec to usr/sbin. Changes in the ALTQ 735 handling also affect users of IPFW's ALTQ capabilities. 736 73720070701: 738 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 739 only IPsec supported by FreeBSD. The new IPsec stack 740 supports both IPv4 and IPv6. The kernel option will change 741 after the code changes have settled in. For now the kernel 742 option IPSEC is deprecated and FAST_IPSEC is the only option, that 743 will change after some settling time. 744 74520070701: 746 The wicontrol(8) utility has been removed from the base system. wi(4) 747 cards should be configured using ifconfig(8), see the man page for more 748 information. 749 75020070612: 751 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 752 instead of the nve(4) driver. Please update your configuration 753 accordingly. 754 75520070612: 756 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 757 database if it is missing or older than the aliases file. If 758 desired, set the new rc.conf option sendmail_rebuild_aliases 759 to "YES" to restore that functionality. 760 76120070612: 762 The IPv4 multicast socket code has been considerably modified, and 763 moved to the file sys/netinet/in_mcast.c. Initial support for the 764 RFC 3678 Source-Specific Multicast Socket API has been added to 765 the IPv4 network stack. 766 767 Strict multicast and broadcast reception is now the default for 768 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 769 has now been removed. 770 771 The RFC 1724 hack for interface selection has been removed; the use 772 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 773 been added to replace it. Consumers such as routed will soon be 774 updated to reflect this. 775 776 These changes affect users who are running routed(8) or rdisc(8) 777 from the FreeBSD base system on point-to-point or unnumbered 778 interfaces. 779 78020070610: 781 The net80211 layer has changed significantly and all wireless 782 drivers that depend on it need to be recompiled. Further these 783 changes require that any program that interacts with the wireless 784 support in the kernel be recompiled; this includes: ifconfig, 785 wpa_supplicant, hostapd, and wlanstats. Users must also, for 786 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 787 if they use modules for wireless support. These modules implement 788 scanning support for station and ap modes, respectively. Failure 789 to load the appropriate module before marking a wireless interface 790 up will result in a message to the console and the device not 791 operating properly. 792 79320070610: 794 The pam_nologin(8) module ceases to provide an authentication 795 function and starts providing an account management function. 796 Consequent changes to /etc/pam.d should be brought in using 797 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 798 need manual editing as follows. Locate this line (or similar): 799 800 auth required pam_nologin.so no_warn 801 802 and change it according to this example: 803 804 account required pam_nologin.so no_warn 805 806 That is, the first word needs to be changed from "auth" to 807 "account". The new line can be moved to the account section 808 within the file for clarity. Not updating pam.conf(5) files 809 will result in nologin(5) ignored by the respective services. 810 81120070529: 812 The ether_ioctl() function has been synchronized with ioctl(2) 813 and ifnet.if_ioctl. Due to that, the size of one of its arguments 814 has changed on 64-bit architectures. All kernel modules using 815 ether_ioctl() need to be rebuilt on such architectures. 816 81720070516: 818 Improved INCLUDE_CONFIG_FILE support has been introduced to the 819 config(8) utility. In order to take advantage of this new 820 functionality, you are expected to recompile and install 821 src/usr.sbin/config. If you don't rebuild config(8), and your 822 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 823 build will be broken because of a missing "kernconfstring" 824 symbol. 825 82620070513: 827 Symbol versioning is enabled by default. To disable it, use 828 option WITHOUT_SYMVER. It is not advisable to attempt to 829 disable symbol versioning once it is enabled; your installworld 830 will break because a symbol version-less libc will get installed 831 before the install tools. As a result, the old install tools, 832 which previously had symbol dependencies to FBSD_1.0, will fail 833 because the freshly installed libc will not have them. 834 835 The default threading library (providing "libpthread") has been 836 changed to libthr. If you wish to have libkse as your default, 837 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 838 83920070423: 840 The ABI breakage in sendmail(8)'s libmilter has been repaired 841 so it is no longer necessary to recompile mail filters (aka, 842 milters). If you recompiled mail filters after the 20070408 843 note, it is not necessary to recompile them again. 844 84520070417: 846 The new trunk(4) driver has been renamed to lagg(4) as it better 847 reflects its purpose. ifconfig will need to be recompiled. 848 84920070408: 850 sendmail(8) has been updated to version 8.14.1. Mail filters 851 (aka, milters) compiled against the libmilter included in the 852 base operating system should be recompiled. 853 85420070302: 855 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 856 In order to use them one must agree to the respective LICENSE in 857 share/doc/legal and define legal.intel_<name>.license_ack=1 via 858 loader.conf(5) or kenv(1). Make sure to deinstall the now 859 deprecated modules from the respective firmware ports. 860 86120070228: 862 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 863 were removed from FreeBSD's libc. These originally came from INRIA 864 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 865 deprecated in previous releases. 866 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 867 replace it as a more portable (and re-entrant) API. 868 86920070224: 870 To support interrupt filtering a modification to the newbus API 871 has occurred, ABI was broken and __FreeBSD_version was bumped 872 to 700031. Please make sure that your kernel and modules are in 873 sync. For more info: 874 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 875 87620070224: 877 The IPv6 multicast forwarding code may now be loaded into GENERIC 878 kernels by loading the ip_mroute.ko module. This is built into the 879 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 880 set; see src.conf(5) for more information. 881 88220070214: 883 The output of netstat -r has changed. Without -n, we now only 884 print a "network name" without the prefix length if the network 885 address and mask exactly match a Class A/B/C network, and an entry 886 exists in the nsswitch "networks" map. 887 With -n, we print the full unabbreviated CIDR network prefix in 888 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 889 This change is in preparation for changes such as equal-cost 890 multipath, and to more generally assist operational deployment 891 of FreeBSD as a modern IPv4 router. 892 89320070210: 894 PIM has been turned on by default in the IPv4 multicast 895 routing code. The kernel option 'PIM' has now been removed. 896 PIM is now built by default if option 'MROUTING' is specified. 897 It may now be loaded into GENERIC kernels by loading the 898 ip_mroute.ko module. 899 90020070207: 901 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 902 has been removed. Its functionality may be achieved by explicitly 903 configuring gif(4) interfaces and using the 'phyint' keyword in 904 mrouted.conf. 905 XORP does not support source-routed IPv4 multicast tunnels nor the 906 integrated IPIP tunneling, therefore it is not affected by this 907 change. The __FreeBSD_version macro has been bumped to 700030. 908 90920061221: 910 Support for PCI Message Signalled Interrupts has been 911 re-enabled in the bge driver, only for those chips which are 912 believed to support it properly. If there are any problems, 913 MSI can be disabled completely by setting the 914 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 915 in the loader. 916 91720061214: 918 Support for PCI Message Signalled Interrupts has been 919 disabled again in the bge driver. Many revisions of the 920 hardware fail to support it properly. Support can be 921 re-enabled by removing the #define of BGE_DISABLE_MSI in 922 "src/sys/dev/bge/if_bge.c". 923 92420061214: 925 Support for PCI Message Signalled Interrupts has been added 926 to the bge driver. If there are any problems, MSI can be 927 disabled completely by setting the 'hw.pci.enable_msi' and 928 'hw.pci.enable_msix' tunables to 0 in the loader. 929 93020061205: 931 The removal of several facets of the experimental Threading 932 system from the kernel means that the proc and thread structures 933 have changed quite a bit. I suggest all kernel modules that might 934 reference these structures be recompiled.. Especially the 935 linux module. 936 93720061126: 938 Sound infrastructure has been updated with various fixes and 939 improvements. Most of the changes are pretty much transparent, 940 with exceptions of followings: 941 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 942 moved to their own dev sysctl nodes, for example: 943 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 944 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 945 own chardev in the form of "dsp%d.<function>%d", where <function> 946 is p = playback, r = record and v = virtual, respectively. Users 947 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 948 This does not affect those who are using "/dev/dsp". 949 95020061122: 951 geom(4)'s gmirror(8) class metadata structure has been 952 rev'd from v3 to v4. If you update across this point and 953 your metadata is converted for you, you will not be easily 954 able to downgrade since the /boot/kernel.old/geom_mirror.ko 955 kernel module will be unable to read the v4 metadata. You 956 can resolve this by doing from the loader(8) prompt: 957 958 set vfs.root.mountfrom="ufs:/dev/XXX" 959 960 where XXX is the root slice of one of the disks that composed 961 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 962 the array the same way you built it originally. 963 96420061122: 965 The following binaries have been disconnected from the build: 966 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 967 and mount_std. The functionality of these programs has been 968 moved into the mount program. For example, to mount a devfs 969 filesystem, instead of using mount_devfs, use: "mount -t devfs". 970 This does not affect entries in /etc/fstab, since entries in 971 /etc/fstab are always processed with "mount -t fstype". 972 97320061113: 974 Support for PCI Message Signalled Interrupts on i386 and amd64 975 has been added to the kernel and various drivers will soon be 976 updated to use MSI when it is available. If there are any problems, 977 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 978 and 'hw.pci.enable_msix' tunables to 0 in the loader. 979 98020061110: 981 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 982 The lockmgr object layout has been changed as a result of having 983 a lock_object embedded in it. As a consequence all file system 984 kernel modules must be re-compiled. The mutex profiling man page 985 has not yet been updated to reflect this change. 986 98720061026: 988 KSE in the kernel has now been made optional and turned on by 989 default. Use 'nooption KSE' in your kernel config to turn it 990 off. All kernel modules *must* be recompiled after this change. 991 There-after, modules from a KSE kernel should be compatible with 992 modules from a NOKSE kernel due to the temporary padding fields 993 added to 'struct proc'. 994 99520060929: 996 mrouted and its utilities have been removed from the base system. 997 99820060927: 999 Some ioctl(2) command codes have changed. Full backward ABI 1000 compatibility is provided if the "options COMPAT_FREEBSD6" is 1001 present in the kernel configuration file. Make sure to add 1002 this option to your kernel config file, or recompile X.Org 1003 and the rest of ports; otherwise they may refuse to work. 1004 100520060924: 1006 tcpslice has been removed from the base system. 1007 100820060913: 1009 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 1010 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 1011 systat needs to be rebuilt. 1012 101320060903: 1014 libpcap updated to v0.9.4 and tcpdump to v3.9.4 1015 101620060816: 1017 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 1018 for IPFIREWALL_FORWARD is now as it was before when it was first 1019 committed and for years after. The behaviour is now ON. 1020 102120060725: 1022 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 1023 Now it can decrypt files created from different architectures. 1024 Unfortunately, it is no longer able to decrypt a cipher text 1025 generated with an older version on 64 bit architectures. 1026 If you have such a file, you need old utility to decrypt it. 1027 102820060709: 1029 The interface version of the i4b kernel part has changed. So 1030 after updating the kernel sources and compiling a new kernel, 1031 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 1032 be rebuilt, and vice versa. 1033 103420060627: 1035 The XBOX kernel now defaults to the nfe(4) driver instead of 1036 the nve(4) driver. Please update your configuration 1037 accordingly. 1038 103920060514: 1040 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 1041 PCnet family of NICs has been removed. The new le(4) driver serves 1042 as an equivalent but cross-platform replacement with the pcn(4) 1043 driver still providing performance-optimized support for the subset 1044 of AMD Am79C971 PCnet-FAST and greater chips as before. 1045 104620060511: 1047 The machdep.* sysctls and the adjkerntz utility have been 1048 modified a bit. The new adjkerntz utility uses the new 1049 sysctl names and sysctlbyname() calls, so it may be impossible 1050 to run an old /sbin/adjkerntz utility in single-user mode 1051 with a new kernel. Replace the `adjkerntz -i' step before 1052 `make installworld' with: 1053 1054 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1055 1056 and proceed as usual with the rest of the installworld-stage 1057 steps. Otherwise, you risk installing binaries with their 1058 timestamp set several hours in the future, especially if 1059 you are running with local time set to GMT+X hours. 1060 106120060412: 1062 The ip6fw utility has been removed. The behavior provided by 1063 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1064 have been updated to deal with it. There are some rules that 1065 might not migrate cleanly. Use rc.firewall6 as a template to 1066 rewrite rules. 1067 106820060428: 1069 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1070 attachments have been removed. Make sure to configure scc(4) 1071 on sparc64. Note also that by default puc(4) will use uart(4) 1072 and not sio(4) for serial ports because interrupt handling has 1073 been optimized for multi-port serial cards and only uart(4) 1074 implements the interface to support it. 1075 107620060330: 1077 The scc(4) driver replaces puc(4) for Serial Communications 1078 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1079 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1080 configuration to make sure that the serial ports remain 1081 functional. 1082 108320060317: 1084 Most world/kernel related NO_* build options changed names. 1085 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1086 after FreeBSD ports) and should be set in /etc/src.conf 1087 (the src.conf(5) manpage is provided). Full backwards 1088 compatibility is maintained for the time being though it's 1089 highly recommended to start moving old options out of the 1090 system-wide /etc/make.conf file into the new /etc/src.conf 1091 while also properly renaming them. More conversions will 1092 likely follow. Posting to current@: 1093 1094 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1095 109620060305: 1097 The NETSMBCRYPTO kernel option has been retired because its 1098 functionality is always included in NETSMB and smbfs.ko now. 1099 110020060303: 1101 The TDFX_LINUX kernel option was retired and replaced by the 1102 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1103 kernel module. Loading it alone should suffice to get 3dfx support 1104 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1105 its dependencies. 1106 110720060204: 1108 The 'audit' group was added to support the new auditing functionality 1109 in the base system. Be sure to follow the directions for updating, 1110 including the requirement to run mergemaster -p. 1111 111220060201: 1113 The kernel ABI to file system modules was changed on i386. 1114 Please make sure that your kernel and modules are in sync. 1115 111620060118: 1117 This actually occured some time ago, but installing the kernel 1118 now also installs a bunch of symbol files for the kernel modules. 1119 This increases the size of /boot/kernel to about 67Mbytes. You 1120 will need twice this if you will eventually back this up to kernel.old 1121 on your next install. 1122 If you have a shortage of room in your root partition, you should add 1123 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1124 to your /etc/make.conf. 1125 112620060113: 1127 libc's malloc implementation has been replaced. This change has the 1128 potential to uncover application bugs that previously went unnoticed. 1129 See the malloc(3) manual page for more details. 1130 113120060112: 1132 The generic netgraph(4) cookie has been changed. If you upgrade 1133 kernel passing this point, you also need to upgrade userland 1134 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1135 113620060106: 1137 si(4)'s device files now contain the unit number. 1138 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1139 114020060106: 1141 The kernel ABI was mostly destroyed due to a change in the size 1142 of struct lock_object which is nested in other structures such 1143 as mutexes which are nested in all sorts of other structures. 1144 Make sure your kernel and modules are in sync. 1145 114620051231: 1147 The page coloring algorithm in the VM subsystem was converted 1148 from tuning with kernel options to autotuning. Please remove 1149 any PQ_* option except PQ_NOOPT from your kernel config. 1150 115120051211: 1152 The net80211-related tools in the tools/tools/ath directory 1153 have been moved to tools/tools/net80211 and renamed with a 1154 "wlan" prefix. Scripts that use them should be adjusted 1155 accordingly. 1156 115720051202: 1158 Scripts in the local_startup directories (as defined in 1159 /etc/defaults/rc.conf) that have the new rc.d semantics will 1160 now be run as part of the base system rcorder. If there are 1161 errors or problems with one of these local scripts, it could 1162 cause boot problems. If you encounter such problems, boot in 1163 single user mode, remove that script from the */rc.d directory. 1164 Please report the problem to the port's maintainer, and the 1165 freebsd-ports@freebsd.org mailing list. 1166 116720051129: 1168 The nodev mount option was deprecated in RELENG_6 (where it 1169 was a no-op), and is now unsupported. If you have nodev or dev listed 1170 in /etc/fstab, remove it, otherwise it will result in a mount error. 1171 117220051129: 1173 ABI between ipfw(4) and ipfw(8) has been changed. You need 1174 to rebuild ipfw(8) when rebuilding kernel. 1175 117620051108: 1177 rp(4)'s device files now contain the unit number. 1178 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1179 118020051029: 1181 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1182 Its /etc/rc.conf.d configuration file has been `ppp' from 1183 the beginning, and hence there is no need to touch it. 1184 118520051014: 1186 Now most modules get their build-time options from the kernel 1187 configuration file. A few modules still have fixed options 1188 due to their non-conformant implementation, but they will be 1189 corrected eventually. You may need to review the options of 1190 the modules in use, explicitly specify the non-default options 1191 in the kernel configuration file, and rebuild the kernel and 1192 modules afterwards. 1193 119420051001: 1195 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1196 to turn polling(4) on your interfaces. 1197 119820050927: 1199 The old bridge(4) implementation was retired. The new 1200 if_bridge(4) serves as a full functional replacement. 1201 120220050722: 1203 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1204 to conform to POSIX-2001. This change broke an ABI 1205 compatibility on 64 bit architecture. You have to recompile 1206 userland programs that use getaddrinfo(3) on 64 bit 1207 architecture. 1208 120920050711: 1210 RELENG_6 branched here. 1211 121220050629: 1213 The pccard_ifconfig rc.conf variable has been removed and a new 1214 variable, ifconfig_DEFAULT has been introduced. Unlike 1215 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1216 do not have ifconfig_ifn entries rather than just those in 1217 removable_interfaces. 1218 121920050616: 1220 Some previous versions of PAM have permitted the use of 1221 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1222 to third party PAM modules in /usr/local/lib. A change has been 1223 made to require the use of absolute paths in order to avoid 1224 ambiguity and dependence on library path configuration, which may 1225 affect existing configurations. 1226 122720050610: 1228 Major changes to network interface API. All drivers must be 1229 recompiled. Drivers not in the base system will need to be 1230 updated to the new APIs. 1231 123220050609: 1233 Changes were made to kinfo_proc in sys/user.h. Please recompile 1234 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1235 will not behave correctly. 1236 1237 The API and ABI for hwpmc(4) have changed with the addition 1238 of sampling support. Please recompile lib/libpmc(3) and 1239 usr.sbin/{pmcstat,pmccontrol}. 1240 124120050606: 1242 The OpenBSD dhclient was imported in place of the ISC dhclient 1243 and the network interface configuration scripts were updated 1244 accordingly. If you use DHCP to configure your interfaces, you 1245 must now run devd. Also, DNS updating was lost so you will need 1246 to find a workaround if you use this feature. 1247 1248 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1249 sure to run mergemaster -p (like you are supposed to do every time 1250 anyway). 1251 125220050605: 1253 if_bridge was added to the tree. This has changed struct ifnet. 1254 Please recompile userland and all network related modules. 1255 125620050603: 1257 The n_net of a struct netent was changed to an uint32_t, and 1258 1st argument of getnetbyaddr() was changed to an uint32_t, to 1259 conform to POSIX-2001. These changes broke an ABI 1260 compatibility on 64 bit architecture. With these changes, 1261 shlib major of libpcap was bumped. You have to recompile 1262 userland programs that use getnetbyaddr(3), getnetbyname(3), 1263 getnetent(3) and/or libpcap on 64 bit architecture. 1264 126520050528: 1266 Kernel parsing of extra options on '#!' first lines of shell 1267 scripts has changed. Lines with multiple options likely will 1268 fail after this date. For full details, please see 1269 http://people.freebsd.org/~gad/Updating-20050528.txt 1270 127120050503: 1272 The packet filter (pf) code has been updated to OpenBSD 3.7 1273 Please note the changed anchor syntax and the fact that 1274 authpf(8) now needs a mounted fdescfs(5) to function. 1275 127620050415: 1277 The NO_MIXED_MODE kernel option has been removed from the i386 1278 amd64 platforms as its use has been superceded by the new local 1279 APIC timer code. Any kernel config files containing this option 1280 should be updated. 1281 128220050227: 1283 The on-disk format of LC_CTYPE files was changed to be machine 1284 independent. Please make sure NOT to use NO_CLEAN buildworld 1285 when crossing this point. Crossing this point also requires 1286 recompile or reinstall of all locale depended packages. 1287 128820050225: 1289 The ifi_epoch member of struct if_data has been changed to 1290 contain the uptime at which the interface was created or the 1291 statistics zeroed rather then the wall clock time because 1292 wallclock time may go backwards. This should have no impact 1293 unless an snmp implementation is using this value (I know of 1294 none at this point.) 1295 129620050224: 1297 The acpi_perf and acpi_throttle drivers are now part of the 1298 acpi(4) main module. They are no longer built separately. 1299 130020050223: 1301 The layout of struct image_params has changed. You have to 1302 recompile all compatibility modules (linux, svr4, etc) for use 1303 with the new kernel. 1304 130520050223: 1306 The p4tcc driver has been merged into cpufreq(4). This makes 1307 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1308 compile in "device cpufreq" to restore this functionality. 1309 131020050220: 1311 The responsibility of recomputing the file system summary of 1312 a SoftUpdates-enabled dirty volume has been transferred to the 1313 background fsck. A rebuild of fsck(8) utility is recommended 1314 if you have updated the kernel. 1315 1316 To get the old behavior (recompute file system summary at mount 1317 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1318 mounting the new volume. 1319 132020050206: 1321 The cpufreq import is complete. As part of this, the sysctls for 1322 acpi(4) throttling have been removed. The power_profile script 1323 has been updated, so you can use performance/economy_cpu_freq in 1324 rc.conf(5) to set AC on/offline cpu frequencies. 1325 132620050206: 1327 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1328 requires recompiling libnetgraph and userland netgraph utilities. 1329 133020050114: 1331 Support for abbreviated forms of a number of ipfw options is 1332 now deprecated. Warnings are printed to stderr indicating the 1333 correct full form when a match occurs. Some abbreviations may 1334 be supported at a later date based on user feedback. To be 1335 considered for support, abbreviations must be in use prior to 1336 this commit and unlikely to be confused with current key words. 1337 133820041221: 1339 By a popular demand, a lot of NOFOO options were renamed 1340 to NO_FOO (see bsd.compat.mk for a full list). The old 1341 spellings are still supported, but will cause annoying 1342 warnings on stderr. Make sure you upgrade properly (see 1343 the COMMON ITEMS: section later in this file). 1344 134520041219: 1346 Auto-loading of ancillary wlan modules such as wlan_wep has 1347 been temporarily disabled; you need to statically configure 1348 the modules you need into your kernel or explicitly load them 1349 prior to use. Specifically, if you intend to use WEP encryption 1350 with an 802.11 device load/configure wlan_wep; if you want to 1351 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1352 and wlan_xauth as required. 1353 135420041213: 1355 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1356 (``enable lqr''), older versions would revert to LCP ECHO mode on 1357 negotiation failure. Now, ``enable echo'' is required for this 1358 behaviour. The ppp version number has been bumped to 3.4.2 to 1359 reflect the change. 1360 136120041201: 1362 The wlan support has been updated to split the crypto support 1363 into separate modules. For static WEP you must configure the 1364 wlan_wep module in your system or build and install the module 1365 in place where it can be loaded (the kernel will auto-load 1366 the module when a wep key is configured). 1367 136820041201: 1369 The ath driver has been updated to split the tx rate control 1370 algorithm into a separate module. You need to include either 1371 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1372 137320041116: 1374 Support for systems with an 80386 CPU has been removed. Please 1375 use FreeBSD 5.x or earlier on systems with an 80386. 1376 137720041110: 1378 We have had a hack which would mount the root filesystem 1379 R/W if the device were named 'md*'. As part of the vnode 1380 work I'm doing I have had to remove this hack. People 1381 building systems which use preloaded MD root filesystems 1382 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1383 their /etc/rc scripts. 1384 138520041104: 1386 FreeBSD 5.3 shipped here. 1387 138820041102: 1389 The size of struct tcpcb has changed again due to the removal 1390 of RFC1644 T/TCP. You have to recompile userland programs that 1391 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1392 139320041022: 1394 The size of struct tcpcb has changed. You have to recompile 1395 userland programs that read kmem for tcp sockets directly 1396 (netstat, sockstat, etc.) 1397 139820041016: 1399 RELENG_5 branched here. For older entries, please see updating 1400 in the RELENG_5 branch. 1401 1402COMMON ITEMS: 1403 1404 General Notes 1405 ------------- 1406 Avoid using make -j when upgrading. From time to time in the 1407 past there have been problems using -j with buildworld and/or 1408 installworld. This is especially true when upgrading between 1409 "distant" versions (eg one that cross a major release boundary 1410 or several minor releases, or when several months have passed 1411 on the -current branch). 1412 1413 Sometimes, obscure build problems are the result of environment 1414 poisoning. This can happen because the make utility reads its 1415 environment when searching for values for global variables. 1416 To run your build attempts in an "environmental clean room", 1417 prefix all make commands with 'env -i '. See the env(1) manual 1418 page for more details. 1419 1420 When upgrading from one major version to another it is generally 1421 best to upgrade to the latest code in the currently installed branch 1422 first, then do an upgrade to the new branch. This is the best-tested 1423 upgrade path, and has the highest probability of being successful. 1424 Please try this approach before reporting problems with a major 1425 version upgrade. 1426 1427 To build a kernel 1428 ----------------- 1429 If you are updating from a prior version of FreeBSD (even one just 1430 a few days old), you should follow this procedure. It is the most 1431 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1432 1433 make kernel-toolchain 1434 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1435 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1436 1437 To test a kernel once 1438 --------------------- 1439 If you just want to boot a kernel once (because you are not sure 1440 if it works, or if you want to boot a known bad kernel to provide 1441 debugging information) run 1442 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1443 nextboot -k testkernel 1444 1445 To just build a kernel when you know that it won't mess you up 1446 -------------------------------------------------------------- 1447 This assumes you are already running a 5.X system. Replace 1448 ${arch} with the architecture of your machine (e.g. "i386", 1449 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1450 1451 cd src/sys/${arch}/conf 1452 config KERNEL_NAME_HERE 1453 cd ../compile/KERNEL_NAME_HERE 1454 make depend 1455 make 1456 make install 1457 1458 If this fails, go to the "To build a kernel" section. 1459 1460 To rebuild everything and install it on the current system. 1461 ----------------------------------------------------------- 1462 # Note: sometimes if you are running current you gotta do more than 1463 # is listed here if you are upgrading from a really old current. 1464 1465 <make sure you have good level 0 dumps> 1466 make buildworld 1467 make kernel KERNCONF=YOUR_KERNEL_HERE 1468 [1] 1469 <reboot in single user> [3] 1470 mergemaster -p [5] 1471 make installworld 1472 make delete-old 1473 mergemaster [4] 1474 <reboot> 1475 1476 1477 To cross-install current onto a separate partition 1478 -------------------------------------------------- 1479 # In this approach we use a separate partition to hold 1480 # current's root, 'usr', and 'var' directories. A partition 1481 # holding "/", "/usr" and "/var" should be about 2GB in 1482 # size. 1483 1484 <make sure you have good level 0 dumps> 1485 <boot into -stable> 1486 make buildworld 1487 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1488 <maybe newfs current's root partition> 1489 <mount current's root partition on directory ${CURRENT_ROOT}> 1490 make installworld DESTDIR=${CURRENT_ROOT} 1491 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1492 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1493 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1494 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1495 <reboot into current> 1496 <do a "native" rebuild/install as described in the previous section> 1497 <maybe install compatibility libraries from ports/misc/compat*> 1498 <reboot> 1499 1500 1501 To upgrade in-place from 5.x-stable to current 1502 ---------------------------------------------- 1503 <make sure you have good level 0 dumps> 1504 make buildworld [9] 1505 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1506 [1] 1507 <reboot in single user> [3] 1508 mergemaster -p [5] 1509 make installworld 1510 make delete-old 1511 mergemaster -i [4] 1512 <reboot> 1513 1514 Make sure that you've read the UPDATING file to understand the 1515 tweaks to various things you need. At this point in the life 1516 cycle of current, things change often and you are on your own 1517 to cope. The defaults can also change, so please read ALL of 1518 the UPDATING entries. 1519 1520 Also, if you are tracking -current, you must be subscribed to 1521 freebsd-current@freebsd.org. Make sure that before you update 1522 your sources that you have read and understood all the recent 1523 messages there. If in doubt, please track -stable which has 1524 much fewer pitfalls. 1525 1526 [1] If you have third party modules, such as vmware, you 1527 should disable them at this point so they don't crash your 1528 system on reboot. 1529 1530 [3] From the bootblocks, boot -s, and then do 1531 fsck -p 1532 mount -u / 1533 mount -a 1534 cd src 1535 adjkerntz -i # if CMOS is wall time 1536 Also, when doing a major release upgrade, it is required that 1537 you boot into single user mode to do the installworld. 1538 1539 [4] Note: This step is non-optional. Failure to do this step 1540 can result in a significant reduction in the functionality of the 1541 system. Attempting to do it by hand is not recommended and those 1542 that pursue this avenue should read this file carefully, as well 1543 as the archives of freebsd-current and freebsd-hackers mailing lists 1544 for potential gotchas. 1545 1546 [5] Usually this step is a noop. However, from time to time 1547 you may need to do this if you get unknown user in the following 1548 step. It never hurts to do it all the time. You may need to 1549 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1550 install) after the buildworld before this step if you last updated 1551 from current before 20020224 or from -stable before 20020408. 1552 1553 [8] In order to have a kernel that can run the 4.x binaries 1554 needed to do an installworld, you must include the COMPAT_FREEBSD4 1555 option in your kernel. Failure to do so may leave you with a system 1556 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1557 is required to run the 5.x binaries on more recent kernels. 1558 1559 Make sure that you merge any new devices from GENERIC since the 1560 last time you updated your kernel config file. 1561 1562 [9] When checking out sources, you must include the -P flag to have 1563 cvs prune empty directories. 1564 1565 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1566 "?=" instead of the "=" assignment operator, so that buildworld can 1567 override the CPUTYPE if it needs to. 1568 1569 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1570 not on the command line, or in /etc/make.conf. buildworld will 1571 warn if it is improperly defined. 1572FORMAT: 1573 1574This file contains a list, in reverse chronological order, of major 1575breakages in tracking -current. Not all things will be listed here, 1576and it only starts on October 16, 2004. Updating files can found in 1577previous releases if your system is older than this. 1578 1579Copyright information: 1580 1581Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1582 1583Redistribution, publication, translation and use, with or without 1584modification, in full or in part, in any form or format of this 1585document are permitted without further permission from the author. 1586 1587THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1588IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1589WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1590DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1591INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1592(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1593SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1594HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1595STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1596IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1597POSSIBILITY OF SUCH DAMAGE. 1598 1599If you find this document useful, and you want to, you may buy the 1600author a beer. 1601 1602Contact Warner Losh if you have any questions about your use of 1603this document. 1604 1605$FreeBSD: head/UPDATING 194317 2009-06-17 01:55:42Z attilio $ 1606