1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh
4 <imp@village.org>. See end of file for further details. For commonly
5 done items, please see the COMMON ITEMS: section later in the file.
7 Items affecting the ports and packages system can be found in
8 /usr/ports/UPDATING. Please read that file before running
11 NOTE 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.)
29 Bump the shared library version numbers for all libraries that
30 do not use symbol versioning as part of the 8.0-RELEASE cycle.
31 Bump __FreeBSD_version to 800105.
34 Due to changes in the implementation of virtual network stack
35 support, all network-related kernel modules must be recompiled.
36 As this change breaks the ABI, bump __FreeBSD_version to 800104.
39 The TOE interface to the TCP syncache has been modified to remove struct
40 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
41 cxgb driver is the only TOE consumer affected by this change, and needs
42 to be recompiled along with the kernel. As this change breaks the ABI,
43 bump __FreeBSD_version to 800103.
46 Padding has been added to struct tcpcb, sackhint and tcpstat in
47 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
48 maintainig the ABI. However, this change breaks the ABI, so bump
49 __FreeBSD_version to 800102. User space tools that rely on the size of
50 any of these structs (e.g. sockstat) need to be recompiled.
53 The NFS_LEGACYRPC option has been removed along with the old
54 kernel RPC implementation that this option selected. Kernel
55 configurations may need to be adjusted.
58 The network interface device nodes at /dev/net/<interface> have
59 been removed. All ioctl operations can be performed the normal
60 way using routing sockets. The kqueue functionality can
61 generally be replaced with routing sockets.
64 The documentation from the FreeBSD Documentation Project
65 (Handbook, FAQ, etc.) is now installed via packages by
66 sysinstall(8) and under the /usr/local/share/doc/freebsd
67 directory instead of /usr/share/doc.
70 The ABI of various structures related to the SYSV IPC API have
71 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
72 kernel options now all require COMPAT_FREEBSD7.
73 Bump __FreeBSD_version to 800100.
76 Layout of struct vnet has changed as routing related variables
77 were moved to their own Vimage module. Modules need to be
78 recompiled. Bump __FreeBSD_version to 800099.
81 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
82 and 1024 respectively. As long as no more than 16 groups per
83 process are used, no changes should be visible. When more
84 than 16 groups are used, old binaries may fail if they call
85 getgroups() or getgrouplist() with statically sized storage.
86 Recompiling will work around this, but applications should be
87 modified to use dynamically allocated storage for group arrays
88 as POSIX.1-2008 does not cap an implementation's number of
89 supported groups at NGROUPS_MAX+1 as previous versions did.
91 NFS and portalfs mounts may also be affected as the list of
92 groups is truncated to 16. Users of NFS who use more than 16
93 groups, should take care that negative group permissions are not
94 used on the exported file systems as they will not be reliable
95 unless a GSSAPI based authentication method is used.
98 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
99 This option compiles in the support for adaptive spinning for lockmgrs
100 which want to enable it. The lockinit() function now accepts the
101 flag LK_ADAPTIVE in order to make the lock object subject to
102 adaptive spinning when both held in write and read mode.
105 The layout of the structure returned by IEEE80211_IOC_STA_INFO
106 has changed. User applications that use this ioctl need to be
110 The layout of struct thread has changed. Kernel and modules
114 The layout of structs ifnet, domain, protosw and vnet_net has
115 changed. Kernel modules need to be rebuilt.
116 Bump __FreeBSD_version to 800097.
119 window(1) has been removed from the base system. It can now be
120 installed from ports. The port is called misc/window.
123 The way we are storing and accessing `routing table' entries
124 has changed. Programs reading the FIB, like netstat, need to
128 A new netisr implementation has been added for FreeBSD 8. Network
129 file system modules, such as igmp, ipdivert, and others, should be
131 Bump __FreeBSD_version to 800096.
134 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
138 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
139 Bump __FreeBSD_version to 800094.
142 Add mnt_xflag field to 'struct mount'. File system modules
144 Bump __FreeBSD_version to 800093.
147 The compiling option ADAPTIVE_SX has been retired while it has been
148 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
149 The KPI for sx_init_flags() changes as accepting flags:
150 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
151 has been introduced in order to handle the reversed logic.
152 Bump __FreeBSD_version to 800092.
155 Add support for hierarchical jails. Remove global securelevel.
156 Bump __FreeBSD_version to 800091.
159 The layout of struct vnet_net has changed, therefore modules
161 Bump __FreeBSD_version to 800090.
164 The newly imported zic(8) produces a new format in the
165 output. Please run tzsetup(8) to install the newly created
166 data to /etc/localtime.
169 The sysctl tree for the usb stack has renamed from hw.usb2.* to
170 hw.usb.* and is now consistent again with previous releases.
173 802.11 monitor mode support was revised and driver api's
174 were changed. Drivers dependent on net80211 now support
175 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
176 user-visible data structures were changed but applications
177 that use DLT_IEEE802_11 may require changes.
178 Bump __FreeBSD_version to 800088.
181 The layout of the following structs has changed: sysctl_oid,
182 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
183 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
184 panics may be experienced. World rebuild is required for
185 correctly checking networking state from userland.
186 Bump __FreeBSD_version to 800085.
189 MLDv2 and Source-Specific Multicast (SSM) have been merged
190 to the IPv6 stack. VIMAGE hooks are in but not yet used.
191 The implementation of SSM within FreeBSD's IPv6 stack closely
192 follows the IPv4 implementation.
194 For kernel developers:
196 * The most important changes are that the ip6_output() and
197 ip6_input() paths no longer take the IN6_MULTI_LOCK,
198 and this lock has been downgraded to a non-recursive mutex.
200 * As with the changes to the IPv4 stack to support SSM, filtering
201 of inbound multicast traffic must now be performed by transport
202 protocols within the IPv6 stack. This does not apply to TCP and
203 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
205 * The KPIs used by IPv6 multicast are similar to those used by
206 the IPv4 stack, with the following differences:
207 * im6o_mc_filter() is analogous to imo_multicast_filter().
208 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
209 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
210 * IN6_LOOKUP_MULTI() has been deprecated and removed.
211 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
212 for MLDv1 have an additional 'timer' argument which is used to
213 jitter the initial membership report for the solicited-node
214 multicast membership on-link.
215 * This is not strictly needed for MLDv2, which already jitters
216 its report transmissions. However, the 'timer' argument is
217 preserved in case MLDv1 is active on the interface.
219 * The KAME linked-list based IPv6 membership implementation has
220 been refactored to use a vector similar to that used by the IPv4
222 Code which maintains a list of its own multicast memberships
223 internally, e.g. carp, has been updated to reflect the new
226 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
227 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
228 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
229 implementation constraint which needs to be addressed in HEAD.
231 For application developers:
233 * The changes are broadly similar to those made for the IPv4
236 * The use of IPv4 and IPv6 multicast socket options on the same
237 socket, using mapped addresses, HAS NOT been tested or supported.
239 * There are a number of issues with the implementation of various
240 IPv6 multicast APIs which need to be resolved in the API surface
241 before the implementation is fully compatible with KAME userland
242 use, and these are mostly to do with interface index treatment.
244 * The literature available discusses the use of either the delta / ASM
245 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
246 using setsourcefilter(3)/getsourcefilter(3). For more information
247 please refer to RFC 3768, 'Socket Interface Extensions for
248 Multicast Source Filters'.
250 * Applications which use the published RFC 3678 APIs should be fine.
252 For systems administrators:
254 * The mtest(8) utility has been refactored to support IPv6, in
255 addition to IPv4. Interface addresses are no longer accepted
256 as arguments, their names must be used instead. The utility
257 will map the interface name to its first IPv4 address as
258 returned by getifaddrs(3).
260 * The ifmcstat(8) utility has also been updated to print the MLDv2
261 endpoint state and source filter lists via sysctl(3).
263 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
264 loopback of IPv6 multicast datagrams by default; it defaults to 1
265 to preserve the existing behaviour. Disabling multicast loopback is
266 recommended for optimal system performance.
268 * The IPv6 MROUTING code has been changed to examine this sysctl
269 instead of attempting to perform a group lookup before looping
270 back forwarded datagrams.
272 Bump __FreeBSD_version to 800084.
275 Implement low-level Bluetooth HCI API.
276 Bump __FreeBSD_version to 800083.
279 The layout of struct malloc_type, used by modules to register new
280 memory allocation types, has changed. Most modules will need to
281 be rebuilt or panics may be experienced.
282 Bump __FreeBSD_version to 800081.
285 Anticipate overflowing inp_flags - add inp_flags2.
286 This changes most offsets in inpcb, so checking v4 connection
287 state will require a world rebuild.
288 Bump __FreeBSD_version to 800080.
291 Add an llentry to struct route and struct route_in6. Modules
292 embedding a struct route will need to be recompiled.
293 Bump __FreeBSD_version to 800079.
296 The size of rt_metrics_lite and by extension rtentry has changed.
297 Networking administration apps will need to be recompiled.
298 The route command now supports show as an alias for get, weighting
299 of routes, sticky and nostick flags to alter the behavior of stateful
301 Bump __FreeBSD_version to 800078.
304 Do not use Giant for kbdmux(4) locking. This is wrong and
305 apparently causing more problems than it solves. This will
306 re-open the issue where interrupt handlers may race with
307 kbdmux(4) in polling mode. Typical symptoms include (but
308 not limited to) duplicated and/or missing characters when
309 low level console functions (such as gets) are used while
310 interrupts are enabled (for example geli password prompt,
311 mountroot prompt etc.). Disabling kbdmux(4) may help.
314 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
315 kernel modules referencing any of the above need to be recompiled.
316 Bump __FreeBSD_version to 800075.
319 GEOM_PART has become the default partition slicer for storage devices,
320 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
321 introduces some changes:
323 MSDOS/EBR: the devices created from MSDOS extended partition entries
324 (EBR) can be named differently than with GEOM_MBR and are now symlinks
325 to devices with offset-based names. fstabs may need to be modified.
327 BSD: the "geometry does not match label" warning is harmless in most
328 cases but it points to problems in file system misalignment with
329 disk geometry. The "c" partition is now implicit, covers the whole
330 top-level drive and cannot be (mis)used by users.
332 General: Kernel dumps are now not allowed to be written to devices
333 whose partition types indicate they are meant to be used for file
334 systems (or, in case of MSDOS partitions, as something else than
337 Most of these changes date approximately from 200812.
340 The uscanner(4) driver has been removed from the kernel. This follows
341 Linux removing theirs in 2.6 and making libusb the default interface
345 The multicast forwarding code has been cleaned up. netstat(1)
346 only relies on KVM now for printing bandwidth upcall meters.
347 The IPv4 and IPv6 modules are split into ip_mroute_mod and
348 ip6_mroute_mod respectively. The config(5) options for statically
349 compiling this code remain the same, i.e. 'options MROUTING'.
352 Support for the IFF_NEEDSGIANT network interface flag has been
353 removed, which means that non-MPSAFE network device drivers are no
354 longer supported. In particular, if_ar, if_sr, and network device
355 drivers from the old (legacy) USB stack can no longer be built or
359 POSIX.1 Native Language Support (NLS) has been enabled in libc and
360 a bunch of new language catalog files have also been added.
361 This means that some common libc messages are now localized and
362 they depend on the LC_MESSAGES environmental variable.
365 The k8temp(4) driver has been renamed to amdtemp(4) since
366 support for K10 and K11 CPU families was added.
369 IGMPv3 and Source-Specific Multicast (SSM) have been merged
370 to the IPv4 stack. VIMAGE hooks are in but not yet used.
372 For kernel developers, the most important changes are that the
373 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
374 and this lock has been downgraded to a non-recursive mutex.
376 Transport protocols (UDP, Raw IP) are now responsible for filtering
377 inbound multicast traffic according to group membership and source
378 filters. The imo_multicast_filter() KPI exists for this purpose.
379 Transports which do not use multicast (SCTP, TCP) already reject
380 multicast by default. Forwarding and receive performance may improve
381 as a mutex acquisition is no longer needed in the ip_input()
382 low-level input path. in_addmulti() and in_delmulti() are shimmed
383 to new KPIs which exist to support SSM in-kernel.
385 For application developers, it is recommended that loopback of
386 multicast datagrams be disabled for best performance, as this
387 will still cause the lock to be taken for each looped-back
388 datagram transmission. The net.inet.ip.mcast.loop sysctl may
389 be tuned to 0 to disable loopback by default; it defaults to 1
390 to preserve the existing behaviour.
392 For systems administrators, to obtain best performance with
393 multicast reception and multiple groups, it is always recommended
394 that a card with a suitably precise hash filter is used. Hash
395 collisions will still result in the lock being taken within the
396 transport protocol input path to check group membership.
398 If deploying FreeBSD in an environment with IGMP snooping switches,
399 it is recommended that the net.inet.igmp.sendlocal sysctl remain
400 enabled; this forces 224.0.0.0/24 group membership to be announced
403 The size of 'struct igmpstat' has changed; netstat needs to be
404 recompiled to reflect this.
405 Bump __FreeBSD_version to 800070.
408 libusb20.so.1 is now installed as libusb.so.1 and the ports system
409 updated to use it. This requires a buildworld/installworld in order to
410 update the library and dependencies (usbconfig, etc). Its advisable to
411 rebuild all ports which uses libusb. More specific directions are given
412 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
413 libusb are no longer required and can be removed.
416 A workaround is committed to allow the creation of System V shared
417 memory segment of size > 2 GB on the 64-bit architectures.
418 Due to a limitation of the existing ABI, the shm_segsz member
419 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
420 wrong for large segments. Note that limits must be explicitly
421 raised to allow such segments to be created.
424 The layout of struct ifnet has changed, requiring a rebuild of all
425 network device driver modules.
428 The /dev handling for the new USB stack has changed, a
429 buildworld/installworld is required for libusb20.
432 The new USB2 stack has now been permanently moved in and all kernel and
433 module names reverted to their previous values (eg, usb, ehci, ohci,
434 ums, ...). The old usb stack can be compiled in by prefixing the name
435 with the letter 'o', the old usb modules have been removed.
436 Updating entry 20090216 for xorg and 20090215 for libmap may still
440 The rc.conf(5) option if_up_delay has been renamed to
441 defaultroute_delay to better reflect its purpose. If you have
442 customized this setting in /etc/rc.conf you need to update it to
446 xorg 7.4 wants to configure its input devices via hald which does not
447 yet work with USB2. If the keyboard/mouse does not work in xorg then
449 Option "AllowEmptyInput" "off"
450 to your ServerLayout section. This will cause X to use the configured
451 kbd and mouse sections from your xorg.conf.
454 The GENERIC kernels for all architectures now default to the new USB2
455 stack. No kernel config options or code have been removed so if a
456 problem arises please report it and optionally revert to the old USB
457 stack. If you are loading USB kernel modules or have a custom kernel
458 that includes GENERIC then ensure that usb names are also changed over,
459 eg uftdi -> usb2_serial_ftdi.
461 Older programs linked against the ports libusb 0.1 need to be
462 redirected to the new stack's libusb20. /etc/libmap.conf can
464 # Map old usb library to new one for usb2 stack
465 libusb-0.1.so.8 libusb20.so.1
468 The ichsmb(4) driver has been changed to require SMBus slave
469 addresses be left-justified (xxxxxxx0b) rather than right-justified.
470 All of the other SMBus controller drivers require left-justified
471 slave addresses, so this change makes all the drivers provide the
475 INET6 statistics (struct ip6stat) was updated.
476 netstat(1) needs to be recompiled.
479 NTFS has been removed from GENERIC kernel on amd64 to match
480 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
481 will load ntfs.ko module automatically when NTFS support is
482 actually needed, unless ntfs.ko is not installed or security
483 level prohibits loading kernel modules. If either is the case,
484 "options NTFS" has to be added into kernel config.
487 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
488 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
489 800061. User space tools that rely on the size of struct tcpcb in
490 tcp_var.h (e.g. sockstat) need to be recompiled.
493 ng_tty(4) module updated to match the new TTY subsystem.
494 Due to API change, user-level applications must be updated.
495 New API support added to mpd5 CVS and expected to be present
496 in next mpd5.3 release.
499 With __FreeBSD_version 800060 the makefs tool is part of
500 the base system (it was a port).
503 The afdata and ifnet locks have been changed from mutexes to
504 rwlocks, network modules will need to be re-compiled.
507 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
508 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
509 The new code reduced struct rtentry{} by 16 bytes on 32-bit
510 architecture and 40 bytes on 64-bit architecture. The userland
511 applications "arp" and "ndp" have been updated accordingly.
512 The output from "netstat -r" shows only routing entries and
513 none of the L2 information.
516 __FreeBSD_version 800057 marks the switchover from the
517 binary ath hal to source code. Users must add the line:
519 options AH_SUPPORT_AR5416
521 to their kernel config files when specifying:
525 The ath_hal module no longer exists; the code is now compiled
526 together with the driver in the ath module. It is now
527 possible to tailor chip support (i.e. reduce the set of chips
528 and thereby the code size); consult ath_hal(4) for details.
531 __FreeBSD_version 800054 adds memory barriers to
532 <machine/atomic.h>, new interfaces to ifnet to facilitate
533 multiple hardware transmit queues for cards that support
534 them, and a lock-less ring-buffer implementation to
535 enable drivers to more efficiently manage queueing of
539 A new version of ZFS (version 13) has been merged to -HEAD.
540 This version has zpool attribute "listsnapshots" off by
541 default, which means "zfs list" does not show snapshots,
542 and is the same as Solaris behavior.
545 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
548 The uhci, ohci, ehci and slhci USB Host controller drivers have
549 been put into separate modules. If you load the usb module
550 separately through loader.conf you will need to load the
551 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
552 controller add the following to loader.conf:
558 The ABI used by the PMC toolset has changed. Please keep
559 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
563 The TTY subsystem of the kernel has been replaced by a new
564 implementation, which provides better scalability and an
565 improved driver model. Most common drivers have been migrated to
566 the new TTY subsystem, while others have not. The following
567 drivers have not yet been ported to the new TTY layer:
570 cy, digi, rc, rp, sio
576 ng_h4, ng_tty, ppp, sl, snp
578 Adding these drivers to your kernel configuration file shall
579 cause compilation to fail.
582 ntpd has been upgraded to 4.2.4p5.
585 OpenSSH has been upgraded to 5.1p1.
587 For many years, FreeBSD's version of OpenSSH preferred DSA
588 over RSA for host and user authentication keys. With this
589 upgrade, we've switched to the vendor's default of RSA over
590 DSA. This may cause upgraded clients to warn about unknown
591 host keys even for previously known hosts. Users should
592 follow the usual procedure for verifying host keys before
593 accepting the RSA key.
595 This can be circumvented by setting the "HostKeyAlgorithms"
596 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
599 Please note that the sequence of keys offered for
600 authentication has been changed as well. You may want to
601 specify IdentityFile in a different order to revert this
605 The sio(4) driver has been removed from the i386 and amd64
606 kernel configuration files. This means uart(4) is now the
607 default serial port driver on those platforms as well.
609 To prevent collisions with the sio(4) driver, the uart(4) driver
610 uses different names for its device nodes. This means the
611 onboard serial port will now most likely be called "ttyu0"
612 instead of "ttyd0". You may need to reconfigure applications to
613 use the new device names.
615 When using the serial port as a boot console, be sure to update
616 /boot/device.hints and /etc/ttys before booting the new kernel.
617 If you forget to do so, you can still manually specify the hints
618 at the loader prompt:
620 set hint.uart.0.at="isa"
621 set hint.uart.0.port="0x3F8"
622 set hint.uart.0.flags="0x10"
623 set hint.uart.0.irq="4"
627 The gpt(8) utility has been removed. Use gpart(8) to partition
631 The version that Linuxulator emulates was changed from 2.4.2
632 to 2.6.16. If you experience any problems with Linux binaries
633 please try to set sysctl compat.linux.osrelease to 2.4.2 and
634 if it fixes the problem contact emulation mailing list.
637 ISDN4BSD (I4B) was removed from the src tree. You may need to
638 update a your kernel configuration and remove relevant entries.
641 I have checked in code to support multiple routing tables.
642 See the man pages setfib(1) and setfib(2).
643 This is a hopefully backwards compatible version,
644 but to make use of it you need to compile your kernel
645 with options ROUTETABLES=2 (or more up to 16).
648 The 802.11 wireless support was redone to enable multi-bss
649 operation on devices that are capable. The underlying device
650 is no longer used directly but instead wlanX devices are
651 cloned with ifconfig. This requires changes to rc.conf files.
653 ifconfig_ath0="WPA DHCP"
656 ifconfig_wlan0="WPA DHCP"
657 see rc.conf(5) for more details. In addition, mergemaster of
658 /etc/rc.d is highly recommended. Simultaneous update of userland
659 and kernel wouldn't hurt either.
661 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
662 modules were merged into the base wlan module. All references
663 to these modules (e.g. in kernel config files) must be removed.
666 psm(4) has gained write(2) support in native operation level.
667 Arbitrary commands can be written to /dev/psm%d and status can
668 be read back from it. Therefore, an application is responsible
669 for status validation and error recovery. It is a no-op in
670 other operation levels.
673 Support for KSE threading has been removed from the kernel. To
674 run legacy applications linked against KSE libmap.conf may
675 be used. The following libmap.conf may be used to ensure
676 compatibility with any prior release:
678 libpthread.so.1 libthr.so.1
679 libpthread.so.2 libthr.so.2
680 libkse.so.3 libthr.so.3
683 The layout of struct vmspace has changed. This affects libkvm
684 and any executables that link against libkvm and use the
685 kvm_getprocs() function. In particular, but not exclusively,
686 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
687 The effects are minimal, but it's advisable to upgrade world
691 The latest em driver no longer has support in it for the
692 82575 adapter, this is now moved to the igb driver. The
693 split was done to make new features that are incompatible
694 with older hardware easier to do.
697 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
698 likewise the kernel option is now GEOM_LINUX_LVM.
701 The default NFS mount mode has changed from UDP to TCP for
702 increased reliability. If you rely on (insecurely) NFS
703 mounting across a firewall you may need to update your
707 Belatedly note the addition of m_collapse for compacting
711 The fts(3) structures have been changed to use adequate
712 integer types for their members and so to be able to cope
713 with huge file trees. The old fts(3) ABI is preserved
714 through symbol versioning in libc, so third-party binaries
715 using fts(3) should still work, although they will not take
716 advantage of the extended types. At the same time, some
717 third-party software might fail to build after this change
718 due to unportable assumptions made in its source code about
719 fts(3) structure members. Such software should be fixed
720 by its vendor or, in the worst case, in the ports tree.
721 FreeBSD_version 800015 marks this change for the unlikely
722 case that a portable fix is impossible.
725 To upgrade to -current after this date, you must be running
726 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
727 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
730 The ADAPTIVE_GIANT kernel option has been retired because its
731 functionality is the default now.
734 The AT keyboard emulation of sunkbd(4) has been turned on
735 by default. In order to make the special symbols of the Sun
736 keyboards driven by sunkbd(4) work under X these now have
737 to be configured the same way as Sun USB keyboards driven
738 by ukbd(4) (which also does AT keyboard emulation), f.e.:
740 Option "XkbLayout" "us"
741 Option "XkbRules" "xorg"
742 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
745 It has been decided that it is desirable to provide ABI
746 backwards compatibility to the FreeBSD 4/5/6 versions of the
747 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
748 broken with the introduction of PCI domain support (see the
749 20070930 entry). Unfortunately, this required the ABI of
750 PCIOCGETCONF to be broken again in order to be able to
751 provide backwards compatibility to the old version of that
752 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
753 again. As for prominent ports this affects neither pciutils
754 nor xorg-server this time, the hal port needs to be rebuilt
758 The misnamed kthread_create() and friends have been renamed
759 to kproc_create() etc. Many of the callers already
761 I will return kthread_create() and friends in a while
762 with implementations that actually create threads, not procs.
763 Renaming corresponds with version 800002.
769 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
770 WITHOUT_LIBTHR are set.
773 The PCI code has been made aware of PCI domains. This means that
774 the location strings as used by pciconf(8) etc are now in the
775 following format: pci<domain>:<bus>:<device>[:<function>]. It
776 also means that consumers of <sys/pciio.h> potentially need to
777 be recompiled; this includes the hal and xorg-server ports.
780 The caching daemon (cached) was renamed to nscd. nscd.conf
781 configuration file should be used instead of cached.conf and
782 nscd_enable, nscd_pidfile and nscd_flags options should be used
783 instead of cached_enable, cached_pidfile and cached_flags in
787 The getfacl(1) utility now prints owning user and group name
788 instead of owning uid and gid in the three line comment header.
789 This is the same behavior as getfacl(1) on Solaris and Linux.
792 The new IPsec code is now compiled in using the IPSEC option. The
793 IPSEC option now requires "device crypto" be defined in your kernel
794 configuration. The FAST_IPSEC kernel option is now deprecated.
797 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
798 note the changed syntax - keep state is now on by default. Also
799 note the fact that ftp-proxy(8) has been changed from bottom up and
800 has been moved from libexec to usr/sbin. Changes in the ALTQ
801 handling also affect users of IPFW's ALTQ capabilities.
804 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
805 only IPsec supported by FreeBSD. The new IPsec stack
806 supports both IPv4 and IPv6. The kernel option will change
807 after the code changes have settled in. For now the kernel
808 option IPSEC is deprecated and FAST_IPSEC is the only option, that
809 will change after some settling time.
812 The wicontrol(8) utility has been removed from the base system. wi(4)
813 cards should be configured using ifconfig(8), see the man page for more
817 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
818 instead of the nve(4) driver. Please update your configuration
822 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
823 database if it is missing or older than the aliases file. If
824 desired, set the new rc.conf option sendmail_rebuild_aliases
825 to "YES" to restore that functionality.
828 The IPv4 multicast socket code has been considerably modified, and
829 moved to the file sys/netinet/in_mcast.c. Initial support for the
830 RFC 3678 Source-Specific Multicast Socket API has been added to
831 the IPv4 network stack.
833 Strict multicast and broadcast reception is now the default for
834 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
835 has now been removed.
837 The RFC 1724 hack for interface selection has been removed; the use
838 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
839 been added to replace it. Consumers such as routed will soon be
840 updated to reflect this.
842 These changes affect users who are running routed(8) or rdisc(8)
843 from the FreeBSD base system on point-to-point or unnumbered
847 The net80211 layer has changed significantly and all wireless
848 drivers that depend on it need to be recompiled. Further these
849 changes require that any program that interacts with the wireless
850 support in the kernel be recompiled; this includes: ifconfig,
851 wpa_supplicant, hostapd, and wlanstats. Users must also, for
852 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
853 if they use modules for wireless support. These modules implement
854 scanning support for station and ap modes, respectively. Failure
855 to load the appropriate module before marking a wireless interface
856 up will result in a message to the console and the device not
860 The pam_nologin(8) module ceases to provide an authentication
861 function and starts providing an account management function.
862 Consequent changes to /etc/pam.d should be brought in using
863 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
864 need manual editing as follows. Locate this line (or similar):
866 auth required pam_nologin.so no_warn
868 and change it according to this example:
870 account required pam_nologin.so no_warn
872 That is, the first word needs to be changed from "auth" to
873 "account". The new line can be moved to the account section
874 within the file for clarity. Not updating pam.conf(5) files
875 will result in nologin(5) ignored by the respective services.
878 The ether_ioctl() function has been synchronized with ioctl(2)
879 and ifnet.if_ioctl. Due to that, the size of one of its arguments
880 has changed on 64-bit architectures. All kernel modules using
881 ether_ioctl() need to be rebuilt on such architectures.
884 Improved INCLUDE_CONFIG_FILE support has been introduced to the
885 config(8) utility. In order to take advantage of this new
886 functionality, you are expected to recompile and install
887 src/usr.sbin/config. If you don't rebuild config(8), and your
888 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
889 build will be broken because of a missing "kernconfstring"
893 Symbol versioning is enabled by default. To disable it, use
894 option WITHOUT_SYMVER. It is not advisable to attempt to
895 disable symbol versioning once it is enabled; your installworld
896 will break because a symbol version-less libc will get installed
897 before the install tools. As a result, the old install tools,
898 which previously had symbol dependencies to FBSD_1.0, will fail
899 because the freshly installed libc will not have them.
901 The default threading library (providing "libpthread") has been
902 changed to libthr. If you wish to have libkse as your default,
903 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
906 The ABI breakage in sendmail(8)'s libmilter has been repaired
907 so it is no longer necessary to recompile mail filters (aka,
908 milters). If you recompiled mail filters after the 20070408
909 note, it is not necessary to recompile them again.
912 The new trunk(4) driver has been renamed to lagg(4) as it better
913 reflects its purpose. ifconfig will need to be recompiled.
916 sendmail(8) has been updated to version 8.14.1. Mail filters
917 (aka, milters) compiled against the libmilter included in the
918 base operating system should be recompiled.
921 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
922 In order to use them one must agree to the respective LICENSE in
923 share/doc/legal and define legal.intel_<name>.license_ack=1 via
924 loader.conf(5) or kenv(1). Make sure to deinstall the now
925 deprecated modules from the respective firmware ports.
928 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
929 were removed from FreeBSD's libc. These originally came from INRIA
930 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
931 deprecated in previous releases.
932 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
933 replace it as a more portable (and re-entrant) API.
936 To support interrupt filtering a modification to the newbus API
937 has occurred, ABI was broken and __FreeBSD_version was bumped
938 to 700031. Please make sure that your kernel and modules are in
940 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
943 The IPv6 multicast forwarding code may now be loaded into GENERIC
944 kernels by loading the ip_mroute.ko module. This is built into the
945 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
946 set; see src.conf(5) for more information.
949 The output of netstat -r has changed. Without -n, we now only
950 print a "network name" without the prefix length if the network
951 address and mask exactly match a Class A/B/C network, and an entry
952 exists in the nsswitch "networks" map.
953 With -n, we print the full unabbreviated CIDR network prefix in
954 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
955 This change is in preparation for changes such as equal-cost
956 multipath, and to more generally assist operational deployment
957 of FreeBSD as a modern IPv4 router.
960 PIM has been turned on by default in the IPv4 multicast
961 routing code. The kernel option 'PIM' has now been removed.
962 PIM is now built by default if option 'MROUTING' is specified.
963 It may now be loaded into GENERIC kernels by loading the
967 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
968 has been removed. Its functionality may be achieved by explicitly
969 configuring gif(4) interfaces and using the 'phyint' keyword in
971 XORP does not support source-routed IPv4 multicast tunnels nor the
972 integrated IPIP tunneling, therefore it is not affected by this
973 change. The __FreeBSD_version macro has been bumped to 700030.
976 Support for PCI Message Signalled Interrupts has been
977 re-enabled in the bge driver, only for those chips which are
978 believed to support it properly. If there are any problems,
979 MSI can be disabled completely by setting the
980 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
984 Support for PCI Message Signalled Interrupts has been
985 disabled again in the bge driver. Many revisions of the
986 hardware fail to support it properly. Support can be
987 re-enabled by removing the #define of BGE_DISABLE_MSI in
988 "src/sys/dev/bge/if_bge.c".
991 Support for PCI Message Signalled Interrupts has been added
992 to the bge driver. If there are any problems, MSI can be
993 disabled completely by setting the 'hw.pci.enable_msi' and
994 'hw.pci.enable_msix' tunables to 0 in the loader.
997 The removal of several facets of the experimental Threading
998 system from the kernel means that the proc and thread structures
999 have changed quite a bit. I suggest all kernel modules that might
1000 reference these structures be recompiled.. Especially the
1004 Sound infrastructure has been updated with various fixes and
1005 improvements. Most of the changes are pretty much transparent,
1006 with exceptions of followings:
1007 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1008 moved to their own dev sysctl nodes, for example:
1009 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1010 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1011 own chardev in the form of "dsp%d.<function>%d", where <function>
1012 is p = playback, r = record and v = virtual, respectively. Users
1013 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1014 This does not affect those who are using "/dev/dsp".
1017 geom(4)'s gmirror(8) class metadata structure has been
1018 rev'd from v3 to v4. If you update across this point and
1019 your metadata is converted for you, you will not be easily
1020 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1021 kernel module will be unable to read the v4 metadata. You
1022 can resolve this by doing from the loader(8) prompt:
1024 set vfs.root.mountfrom="ufs:/dev/XXX"
1026 where XXX is the root slice of one of the disks that composed
1027 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1028 the array the same way you built it originally.
1031 The following binaries have been disconnected from the build:
1032 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1033 and mount_std. The functionality of these programs has been
1034 moved into the mount program. For example, to mount a devfs
1035 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1036 This does not affect entries in /etc/fstab, since entries in
1037 /etc/fstab are always processed with "mount -t fstype".
1040 Support for PCI Message Signalled Interrupts on i386 and amd64
1041 has been added to the kernel and various drivers will soon be
1042 updated to use MSI when it is available. If there are any problems,
1043 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1044 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1047 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1048 The lockmgr object layout has been changed as a result of having
1049 a lock_object embedded in it. As a consequence all file system
1050 kernel modules must be re-compiled. The mutex profiling man page
1051 has not yet been updated to reflect this change.
1054 KSE in the kernel has now been made optional and turned on by
1055 default. Use 'nooption KSE' in your kernel config to turn it
1056 off. All kernel modules *must* be recompiled after this change.
1057 There-after, modules from a KSE kernel should be compatible with
1058 modules from a NOKSE kernel due to the temporary padding fields
1059 added to 'struct proc'.
1062 mrouted and its utilities have been removed from the base system.
1065 Some ioctl(2) command codes have changed. Full backward ABI
1066 compatibility is provided if the "options COMPAT_FREEBSD6" is
1067 present in the kernel configuration file. Make sure to add
1068 this option to your kernel config file, or recompile X.Org
1069 and the rest of ports; otherwise they may refuse to work.
1072 tcpslice has been removed from the base system.
1075 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1076 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1077 systat needs to be rebuilt.
1080 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1083 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1084 for IPFIREWALL_FORWARD is now as it was before when it was first
1085 committed and for years after. The behaviour is now ON.
1088 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1089 Now it can decrypt files created from different architectures.
1090 Unfortunately, it is no longer able to decrypt a cipher text
1091 generated with an older version on 64 bit architectures.
1092 If you have such a file, you need old utility to decrypt it.
1095 The interface version of the i4b kernel part has changed. So
1096 after updating the kernel sources and compiling a new kernel,
1097 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1098 be rebuilt, and vice versa.
1101 The XBOX kernel now defaults to the nfe(4) driver instead of
1102 the nve(4) driver. Please update your configuration
1106 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1107 PCnet family of NICs has been removed. The new le(4) driver serves
1108 as an equivalent but cross-platform replacement with the pcn(4)
1109 driver still providing performance-optimized support for the subset
1110 of AMD Am79C971 PCnet-FAST and greater chips as before.
1113 The machdep.* sysctls and the adjkerntz utility have been
1114 modified a bit. The new adjkerntz utility uses the new
1115 sysctl names and sysctlbyname() calls, so it may be impossible
1116 to run an old /sbin/adjkerntz utility in single-user mode
1117 with a new kernel. Replace the `adjkerntz -i' step before
1118 `make installworld' with:
1120 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1122 and proceed as usual with the rest of the installworld-stage
1123 steps. Otherwise, you risk installing binaries with their
1124 timestamp set several hours in the future, especially if
1125 you are running with local time set to GMT+X hours.
1128 The ip6fw utility has been removed. The behavior provided by
1129 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1130 have been updated to deal with it. There are some rules that
1131 might not migrate cleanly. Use rc.firewall6 as a template to
1135 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1136 attachments have been removed. Make sure to configure scc(4)
1137 on sparc64. Note also that by default puc(4) will use uart(4)
1138 and not sio(4) for serial ports because interrupt handling has
1139 been optimized for multi-port serial cards and only uart(4)
1140 implements the interface to support it.
1143 The scc(4) driver replaces puc(4) for Serial Communications
1144 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1145 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1146 configuration to make sure that the serial ports remain
1150 Most world/kernel related NO_* build options changed names.
1151 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1152 after FreeBSD ports) and should be set in /etc/src.conf
1153 (the src.conf(5) manpage is provided). Full backwards
1154 compatibility is maintained for the time being though it's
1155 highly recommended to start moving old options out of the
1156 system-wide /etc/make.conf file into the new /etc/src.conf
1157 while also properly renaming them. More conversions will
1158 likely follow. Posting to current@:
1160 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1163 The NETSMBCRYPTO kernel option has been retired because its
1164 functionality is always included in NETSMB and smbfs.ko now.
1167 The TDFX_LINUX kernel option was retired and replaced by the
1168 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1169 kernel module. Loading it alone should suffice to get 3dfx support
1170 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1174 The 'audit' group was added to support the new auditing functionality
1175 in the base system. Be sure to follow the directions for updating,
1176 including the requirement to run mergemaster -p.
1179 The kernel ABI to file system modules was changed on i386.
1180 Please make sure that your kernel and modules are in sync.
1183 This actually occured some time ago, but installing the kernel
1184 now also installs a bunch of symbol files for the kernel modules.
1185 This increases the size of /boot/kernel to about 67Mbytes. You
1186 will need twice this if you will eventually back this up to kernel.old
1187 on your next install.
1188 If you have a shortage of room in your root partition, you should add
1189 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1190 to your /etc/make.conf.
1193 libc's malloc implementation has been replaced. This change has the
1194 potential to uncover application bugs that previously went unnoticed.
1195 See the malloc(3) manual page for more details.
1198 The generic netgraph(4) cookie has been changed. If you upgrade
1199 kernel passing this point, you also need to upgrade userland
1200 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1203 si(4)'s device files now contain the unit number.
1204 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1207 The kernel ABI was mostly destroyed due to a change in the size
1208 of struct lock_object which is nested in other structures such
1209 as mutexes which are nested in all sorts of other structures.
1210 Make sure your kernel and modules are in sync.
1213 The page coloring algorithm in the VM subsystem was converted
1214 from tuning with kernel options to autotuning. Please remove
1215 any PQ_* option except PQ_NOOPT from your kernel config.
1218 The net80211-related tools in the tools/tools/ath directory
1219 have been moved to tools/tools/net80211 and renamed with a
1220 "wlan" prefix. Scripts that use them should be adjusted
1224 Scripts in the local_startup directories (as defined in
1225 /etc/defaults/rc.conf) that have the new rc.d semantics will
1226 now be run as part of the base system rcorder. If there are
1227 errors or problems with one of these local scripts, it could
1228 cause boot problems. If you encounter such problems, boot in
1229 single user mode, remove that script from the */rc.d directory.
1230 Please report the problem to the port's maintainer, and the
1231 freebsd-ports@freebsd.org mailing list.
1234 The nodev mount option was deprecated in RELENG_6 (where it
1235 was a no-op), and is now unsupported. If you have nodev or dev listed
1236 in /etc/fstab, remove it, otherwise it will result in a mount error.
1239 ABI between ipfw(4) and ipfw(8) has been changed. You need
1240 to rebuild ipfw(8) when rebuilding kernel.
1243 rp(4)'s device files now contain the unit number.
1244 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1247 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1248 Its /etc/rc.conf.d configuration file has been `ppp' from
1249 the beginning, and hence there is no need to touch it.
1252 Now most modules get their build-time options from the kernel
1253 configuration file. A few modules still have fixed options
1254 due to their non-conformant implementation, but they will be
1255 corrected eventually. You may need to review the options of
1256 the modules in use, explicitly specify the non-default options
1257 in the kernel configuration file, and rebuild the kernel and
1261 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1262 to turn polling(4) on your interfaces.
1265 The old bridge(4) implementation was retired. The new
1266 if_bridge(4) serves as a full functional replacement.
1269 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1270 to conform to POSIX-2001. This change broke an ABI
1271 compatibility on 64 bit architecture. You have to recompile
1272 userland programs that use getaddrinfo(3) on 64 bit
1276 RELENG_6 branched here.
1279 The pccard_ifconfig rc.conf variable has been removed and a new
1280 variable, ifconfig_DEFAULT has been introduced. Unlike
1281 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1282 do not have ifconfig_ifn entries rather than just those in
1283 removable_interfaces.
1286 Some previous versions of PAM have permitted the use of
1287 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1288 to third party PAM modules in /usr/local/lib. A change has been
1289 made to require the use of absolute paths in order to avoid
1290 ambiguity and dependence on library path configuration, which may
1291 affect existing configurations.
1294 Major changes to network interface API. All drivers must be
1295 recompiled. Drivers not in the base system will need to be
1296 updated to the new APIs.
1299 Changes were made to kinfo_proc in sys/user.h. Please recompile
1300 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1301 will not behave correctly.
1303 The API and ABI for hwpmc(4) have changed with the addition
1304 of sampling support. Please recompile lib/libpmc(3) and
1305 usr.sbin/{pmcstat,pmccontrol}.
1308 The OpenBSD dhclient was imported in place of the ISC dhclient
1309 and the network interface configuration scripts were updated
1310 accordingly. If you use DHCP to configure your interfaces, you
1311 must now run devd. Also, DNS updating was lost so you will need
1312 to find a workaround if you use this feature.
1314 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1315 sure to run mergemaster -p (like you are supposed to do every time
1319 if_bridge was added to the tree. This has changed struct ifnet.
1320 Please recompile userland and all network related modules.
1323 The n_net of a struct netent was changed to an uint32_t, and
1324 1st argument of getnetbyaddr() was changed to an uint32_t, to
1325 conform to POSIX-2001. These changes broke an ABI
1326 compatibility on 64 bit architecture. With these changes,
1327 shlib major of libpcap was bumped. You have to recompile
1328 userland programs that use getnetbyaddr(3), getnetbyname(3),
1329 getnetent(3) and/or libpcap on 64 bit architecture.
1332 Kernel parsing of extra options on '#!' first lines of shell
1333 scripts has changed. Lines with multiple options likely will
1334 fail after this date. For full details, please see
1335 http://people.freebsd.org/~gad/Updating-20050528.txt
1338 The packet filter (pf) code has been updated to OpenBSD 3.7
1339 Please note the changed anchor syntax and the fact that
1340 authpf(8) now needs a mounted fdescfs(5) to function.
1343 The NO_MIXED_MODE kernel option has been removed from the i386
1344 amd64 platforms as its use has been superceded by the new local
1345 APIC timer code. Any kernel config files containing this option
1349 The on-disk format of LC_CTYPE files was changed to be machine
1350 independent. Please make sure NOT to use NO_CLEAN buildworld
1351 when crossing this point. Crossing this point also requires
1352 recompile or reinstall of all locale depended packages.
1355 The ifi_epoch member of struct if_data has been changed to
1356 contain the uptime at which the interface was created or the
1357 statistics zeroed rather then the wall clock time because
1358 wallclock time may go backwards. This should have no impact
1359 unless an snmp implementation is using this value (I know of
1360 none at this point.)
1363 The acpi_perf and acpi_throttle drivers are now part of the
1364 acpi(4) main module. They are no longer built separately.
1367 The layout of struct image_params has changed. You have to
1368 recompile all compatibility modules (linux, svr4, etc) for use
1369 with the new kernel.
1372 The p4tcc driver has been merged into cpufreq(4). This makes
1373 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1374 compile in "device cpufreq" to restore this functionality.
1377 The responsibility of recomputing the file system summary of
1378 a SoftUpdates-enabled dirty volume has been transferred to the
1379 background fsck. A rebuild of fsck(8) utility is recommended
1380 if you have updated the kernel.
1382 To get the old behavior (recompute file system summary at mount
1383 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1384 mounting the new volume.
1387 The cpufreq import is complete. As part of this, the sysctls for
1388 acpi(4) throttling have been removed. The power_profile script
1389 has been updated, so you can use performance/economy_cpu_freq in
1390 rc.conf(5) to set AC on/offline cpu frequencies.
1393 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1394 requires recompiling libnetgraph and userland netgraph utilities.
1397 Support for abbreviated forms of a number of ipfw options is
1398 now deprecated. Warnings are printed to stderr indicating the
1399 correct full form when a match occurs. Some abbreviations may
1400 be supported at a later date based on user feedback. To be
1401 considered for support, abbreviations must be in use prior to
1402 this commit and unlikely to be confused with current key words.
1405 By a popular demand, a lot of NOFOO options were renamed
1406 to NO_FOO (see bsd.compat.mk for a full list). The old
1407 spellings are still supported, but will cause annoying
1408 warnings on stderr. Make sure you upgrade properly (see
1409 the COMMON ITEMS: section later in this file).
1412 Auto-loading of ancillary wlan modules such as wlan_wep has
1413 been temporarily disabled; you need to statically configure
1414 the modules you need into your kernel or explicitly load them
1415 prior to use. Specifically, if you intend to use WEP encryption
1416 with an 802.11 device load/configure wlan_wep; if you want to
1417 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1418 and wlan_xauth as required.
1421 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1422 (``enable lqr''), older versions would revert to LCP ECHO mode on
1423 negotiation failure. Now, ``enable echo'' is required for this
1424 behaviour. The ppp version number has been bumped to 3.4.2 to
1428 The wlan support has been updated to split the crypto support
1429 into separate modules. For static WEP you must configure the
1430 wlan_wep module in your system or build and install the module
1431 in place where it can be loaded (the kernel will auto-load
1432 the module when a wep key is configured).
1435 The ath driver has been updated to split the tx rate control
1436 algorithm into a separate module. You need to include either
1437 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1440 Support for systems with an 80386 CPU has been removed. Please
1441 use FreeBSD 5.x or earlier on systems with an 80386.
1444 We have had a hack which would mount the root filesystem
1445 R/W if the device were named 'md*'. As part of the vnode
1446 work I'm doing I have had to remove this hack. People
1447 building systems which use preloaded MD root filesystems
1448 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1449 their /etc/rc scripts.
1452 FreeBSD 5.3 shipped here.
1455 The size of struct tcpcb has changed again due to the removal
1456 of RFC1644 T/TCP. You have to recompile userland programs that
1457 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1460 The size of struct tcpcb has changed. You have to recompile
1461 userland programs that read kmem for tcp sockets directly
1462 (netstat, sockstat, etc.)
1465 RELENG_5 branched here. For older entries, please see updating
1466 in the RELENG_5 branch.
1472 Avoid using make -j when upgrading. From time to time in the
1473 past there have been problems using -j with buildworld and/or
1474 installworld. This is especially true when upgrading between
1475 "distant" versions (eg one that cross a major release boundary
1476 or several minor releases, or when several months have passed
1477 on the -current branch).
1479 Sometimes, obscure build problems are the result of environment
1480 poisoning. This can happen because the make utility reads its
1481 environment when searching for values for global variables.
1482 To run your build attempts in an "environmental clean room",
1483 prefix all make commands with 'env -i '. See the env(1) manual
1484 page for more details.
1486 When upgrading from one major version to another it is generally
1487 best to upgrade to the latest code in the currently installed branch
1488 first, then do an upgrade to the new branch. This is the best-tested
1489 upgrade path, and has the highest probability of being successful.
1490 Please try this approach before reporting problems with a major
1495 If you are updating from a prior version of FreeBSD (even one just
1496 a few days old), you should follow this procedure. It is the most
1497 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1499 make kernel-toolchain
1500 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1501 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1503 To test a kernel once
1504 ---------------------
1505 If you just want to boot a kernel once (because you are not sure
1506 if it works, or if you want to boot a known bad kernel to provide
1507 debugging information) run
1508 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1509 nextboot -k testkernel
1511 To just build a kernel when you know that it won't mess you up
1512 --------------------------------------------------------------
1513 This assumes you are already running a 5.X system. Replace
1514 ${arch} with the architecture of your machine (e.g. "i386",
1515 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1517 cd src/sys/${arch}/conf
1518 config KERNEL_NAME_HERE
1519 cd ../compile/KERNEL_NAME_HERE
1524 If this fails, go to the "To build a kernel" section.
1526 To rebuild everything and install it on the current system.
1527 -----------------------------------------------------------
1528 # Note: sometimes if you are running current you gotta do more than
1529 # is listed here if you are upgrading from a really old current.
1531 <make sure you have good level 0 dumps>
1533 make kernel KERNCONF=YOUR_KERNEL_HERE
1535 <reboot in single user> [3]
1543 To cross-install current onto a separate partition
1544 --------------------------------------------------
1545 # In this approach we use a separate partition to hold
1546 # current's root, 'usr', and 'var' directories. A partition
1547 # holding "/", "/usr" and "/var" should be about 2GB in
1550 <make sure you have good level 0 dumps>
1553 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1554 <maybe newfs current's root partition>
1555 <mount current's root partition on directory ${CURRENT_ROOT}>
1556 make installworld DESTDIR=${CURRENT_ROOT}
1557 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1558 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1559 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1560 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1561 <reboot into current>
1562 <do a "native" rebuild/install as described in the previous section>
1563 <maybe install compatibility libraries from ports/misc/compat*>
1567 To upgrade in-place from 5.x-stable to current
1568 ----------------------------------------------
1569 <make sure you have good level 0 dumps>
1571 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1573 <reboot in single user> [3]
1580 Make sure that you've read the UPDATING file to understand the
1581 tweaks to various things you need. At this point in the life
1582 cycle of current, things change often and you are on your own
1583 to cope. The defaults can also change, so please read ALL of
1584 the UPDATING entries.
1586 Also, if you are tracking -current, you must be subscribed to
1587 freebsd-current@freebsd.org. Make sure that before you update
1588 your sources that you have read and understood all the recent
1589 messages there. If in doubt, please track -stable which has
1590 much fewer pitfalls.
1592 [1] If you have third party modules, such as vmware, you
1593 should disable them at this point so they don't crash your
1596 [3] From the bootblocks, boot -s, and then do
1601 adjkerntz -i # if CMOS is wall time
1602 Also, when doing a major release upgrade, it is required that
1603 you boot into single user mode to do the installworld.
1605 [4] Note: This step is non-optional. Failure to do this step
1606 can result in a significant reduction in the functionality of the
1607 system. Attempting to do it by hand is not recommended and those
1608 that pursue this avenue should read this file carefully, as well
1609 as the archives of freebsd-current and freebsd-hackers mailing lists
1610 for potential gotchas.
1612 [5] Usually this step is a noop. However, from time to time
1613 you may need to do this if you get unknown user in the following
1614 step. It never hurts to do it all the time. You may need to
1615 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1616 install) after the buildworld before this step if you last updated
1617 from current before 20020224 or from -stable before 20020408.
1619 [8] In order to have a kernel that can run the 4.x binaries
1620 needed to do an installworld, you must include the COMPAT_FREEBSD4
1621 option in your kernel. Failure to do so may leave you with a system
1622 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1623 is required to run the 5.x binaries on more recent kernels.
1625 Make sure that you merge any new devices from GENERIC since the
1626 last time you updated your kernel config file.
1628 [9] When checking out sources, you must include the -P flag to have
1629 cvs prune empty directories.
1631 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1632 "?=" instead of the "=" assignment operator, so that buildworld can
1633 override the CPUTYPE if it needs to.
1635 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1636 not on the command line, or in /etc/make.conf. buildworld will
1637 warn if it is improperly defined.
1640 This file contains a list, in reverse chronological order, of major
1641 breakages in tracking -current. Not all things will be listed here,
1642 and it only starts on October 16, 2004. Updating files can found in
1643 previous releases if your system is older than this.
1645 Copyright information:
1647 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1649 Redistribution, publication, translation and use, with or without
1650 modification, in full or in part, in any form or format of this
1651 document are permitted without further permission from the author.
1653 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1654 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1655 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1656 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1657 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1658 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1659 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1660 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1661 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1662 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1663 POSSIBILITY OF SUCH DAMAGE.
1665 If you find this document useful, and you want to, you may buy the
1668 Contact Warner Losh if you have any questions about your use of