497 lines
19 KiB
Plaintext
497 lines
19 KiB
Plaintext
Updating Information for FreeBSD current users
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This file is maintained and copyrighted by M. Warner Losh
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<imp@village.org>. See end of file for further details. For commonly
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done items, please see the COMMON ITEMS: section later in the file.
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Items affecting the ports and packages system can be found in
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/usr/ports/UPDATING. Please read that file before running
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portupgrade.
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NOTE TO PEOPLE WHO THINK THAT FreeBSD 7.x IS SLOW:
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FreeBSD 7.x has many debugging features turned on, in
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both the kernel and userland. These features attempt to detect
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incorrect use of system primitives, and encourage loud failure
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through extra sanity checking and fail stop semantics. They
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also substantially impact system performance. If you want to
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do performance measurement, benchmarking, and optimization,
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you'll want to turn them off. This includes various WITNESS-
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related kernel options, INVARIANTS, malloc debugging flags
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in userland, and various verbose features in the kernel. Many
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developers choose to disable these features on build machines
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to maximize performance.
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20060118:
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This actually occured some time ago, but installing the kernel
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now also installs a bunch of symbol files for the kernel modules.
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This increases the size of /boot/kenrnel to about 67Mbytes. You
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will need twice this if you will eventually back this up to kernel.old
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on your next install.
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If you have a shortage of room in your root partition, you should add
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-DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
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to your /etc/make.conf.
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20060113:
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libc's malloc implementation has been replaced. This change has the
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potential to uncover application bugs that previously went unnoticed.
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See the malloc(3) manual page for more details.
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20060112:
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The generic netgraph(4) cookie has been changed. If you upgrade
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kernel passing this point, you also need to upgrade userland
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and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
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20060106:
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The kernel ABI was mostly destroyed due to a change in the size
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of struct lock_object which is nested in other structures such
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as mutexes which are nested in all sorts of other structures.
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Make sure your kernel and modules are in sync.
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20051231:
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The page coloring algorithm in the VM subsystem was converted
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from tuning with kernel options to autotuning. Please remove
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any PQ_* option except PQ_NOOPT from your kernel config.
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20051211:
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The net80211-related tools in the tools/tools/ath directory
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have been moved to tools/tools/net80211 and renamed with a
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"wlan" prefix. Scripts that use them should be adjusted
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accordingly.
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20051202:
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Scripts in the local_startup directories (as defined in
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/etc/defaults/rc.conf) that have the new rc.d semantics will
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now be run as part of the base system rcorder. If there are
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errors or problems with one of these local scripts, it could
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cause boot problems. If you encounter such problems, boot in
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single user mode, remove that script from the */rc.d directory.
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Please report the problem to the port's maintainer, and the
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freebsd-ports@freebsd.org mailing list.
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20051129:
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The nodev mount option was deprecated in RELENG_6 (where it
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was a no-op), and is now unsupported. If you have nodev or dev listed
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in /etc/fstab, remove it, otherwise it will result in a mount error.
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20051129:
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ABI between ipfw(4) and ipfw(8) has been changed. You need
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to rebuild ipfw(8) when rebuilding kernel.
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20051108:
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rp(4)'s device files now contain the unit number.
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Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
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20051029:
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/etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
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Its /etc/rc.conf.d configuration file has been `ppp' from
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the beginning, and hence there is no need to touch it.
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20051001:
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kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
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to turn polling(4) on your interfaces.
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20050927:
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The old bridge(4) implementation was retired. The new
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if_bridge(4) serves as a full functional replacement.
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20050722:
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The ai_addrlen of a struct addrinfo was changed to a socklen_t
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to conform to POSIX-2001. This change broke an ABI
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compatibility on 64 bit architecture. You have to recompile
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userland programs that use getaddrinfo(3) on 64 bit
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architecture.
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20050711:
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RELENG_6 branched here.
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20050629:
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The pccard_ifconfig rc.conf variable has been removed and a new
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variable, ifconfig_DEFAULT has been introduced. Unlike
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pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
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do not have ifconfig_ifn entries rather than just those in
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removable_interfaces.
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20050616:
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Some previous versions of PAM have permitted the use of
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non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
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to third party PAM modules in /usr/local/lib. A change has been
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made to require the use of absolute paths in order to avoid
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ambiguity and dependence on library path configuration, which may
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affect existing configurations.
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20050610:
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Major changes to network interface API. All drivers must be
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recompiled. Drivers not in the base system will need to be
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updated to the new APIs.
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20050609:
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Changes were made to kinfo_proc in sys/user.h. Please recompile
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userland, or commands like `fstat', `pkill', `ps', `top' and `w'
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will not behave correctly.
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The API and ABI for hwpmc(4) have changed with the addition
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of sampling support. Please recompile lib/libpmc(3) and
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usr.sbin/{pmcstat,pmccontrol}.
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20050606:
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The OpenBSD dhclient was imported in place of the ISC dhclient
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and the network interface configuration scripts were updated
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accordingly. If you use DHCP to configure your interfaces, you
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must now run devd. Also, DNS updating was lost so you will need
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to find a workaround if you use this feature.
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20050605:
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if_bridge was added to the tree. This has changed struct ifnet.
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Please recompile userland and all network related modules.
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20050603:
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The n_net of a struct netent was changed to an uint32_t, and
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1st argument of getnetbyaddr() was changed to an uint32_t, to
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conform to POSIX-2001. These changes broke an ABI
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compatibility on 64 bit architecture. With these changes,
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shlib major of libpcap was bumped. You have to recompile
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userland programs that use getnetbyaddr(3), getnetbyname(3),
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getnetent(3) and/or libpcap on 64 bit architecture.
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20050528:
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Kernel parsing of extra options on '#!' first lines of shell
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scripts has changed. Lines with multiple options likely will
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fail after this date. For full details, please see
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http://people.freebsd.org/~gad/Updating-20050528.txt
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20050503:
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The packet filter (pf) code has been updated to OpenBSD 3.7
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Please note the changed anchor syntax and the fact that
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authpf(8) now needs a mounted fdescfs(5) to function.
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20050415:
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The NO_MIXED_MODE kernel option has been removed from the i386
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amd64 platforms as its use has been superceded by the new local
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APIC timer code. Any kernel config files containing this option
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should be updated.
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20050227:
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The on-disk format of LC_CTYPE files was changed to be machine
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independent. Please make sure NOT to use NO_CLEAN buildworld
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when crossing this point. Crossing this point also requires
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recompile or reinstall of all locale depended packages.
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20050225:
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The ifi_epoch member of struct if_data has been changed to
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contain the uptime at which the interface was created or the
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statistics zeroed rather then the wall clock time because
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wallclock time may go backwards. This should have no impact
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unless an snmp implementation is using this value (I know of
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none at this point.)
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20050224:
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The acpi_perf and acpi_throttle drivers are now part of the
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acpi(4) main module. They are no longer built separately.
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20050223:
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The layout of struct image_params has changed. You have to
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recompile all compatibility modules (linux, svr4, etc) for use
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with the new kernel.
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20050223:
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The p4tcc driver has been merged into cpufreq(4). This makes
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"options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
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compile in "device cpufreq" to restore this functionality.
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20050220:
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The responsibility of recomputing the file system summary of
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a SoftUpdates-enabled dirty volume has been transferred to the
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background fsck. A rebuild of fsck(8) utility is recommended
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if you have updated the kernel.
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To get the old behavior (recompute file system summary at mount
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time), you can set vfs.ffs.compute_summary_at_mount=1 before
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mounting the new volume.
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20050206:
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The cpufreq import is complete. As part of this, the sysctls for
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acpi(4) throttling have been removed. The power_profile script
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has been updated, so you can use performance/economy_cpu_freq in
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rc.conf(5) to set AC on/offline cpu frequencies.
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20050206:
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NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
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requires recompiling libnetgraph and userland netgraph utilities.
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20050114:
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Support for abbreviated forms of a number of ipfw options is
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now deprecated. Warnings are printed to stderr indicating the
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correct full form when a match occurs. Some abbreviations may
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be supported at a later date based on user feedback. To be
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considered for support, abbreviations must be in use prior to
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this commit and unlikely to be confused with current key words.
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20041221:
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By a popular demand, a lot of NOFOO options were renamed
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to NO_FOO (see bsd.compat.mk for a full list). The old
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spellings are still supported, but will cause annoying
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warnings on stderr. Make sure you upgrade properly (see
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the COMMON ITEMS: section later in this file).
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20041219:
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Auto-loading of ancillary wlan modules such as wlan_wep has
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been temporarily disabled; you need to statically configure
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the modules you need into your kernel or explicitly load them
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prior to use. Specifically, if you intend to use WEP encryption
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with an 802.11 device load/configure wlan_wep; if you want to
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use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
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and wlan_xauth as required.
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20041213:
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The behaviour of ppp(8) has changed slightly. If lqr is enabled
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(``enable lqr''), older versions would revert to LCP ECHO mode on
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negotiation failure. Now, ``enable echo'' is required for this
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behaviour. The ppp version number has been bumped to 3.4.2 to
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reflect the change.
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20041201:
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The wlan support has been updated to split the crypto support
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into separate modules. For static WEP you must configure the
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wlan_wep module in your system or build and install the module
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in place where it can be loaded (the kernel will auto-load
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the module when a wep key is configured).
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20041201:
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The ath driver has been updated to split the tx rate control
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algorithm into a separate module. You need to include either
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ath_rate_onoe or ath_rate_amrr when configuring the kernel.
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20041116:
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Support for systems with an 80386 CPU has been removed. Please
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use FreeBSD 5.x or earlier on systems with an 80386.
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20041110:
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We have had a hack which would mount the root filesystem
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R/W if the device were named 'md*'. As part of the vnode
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work I'm doing I have had to remove this hack. People
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building systems which use preloaded MD root filesystems
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may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
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their /etc/rc scripts.
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20041104:
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FreeBSD 5.3 shipped here.
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20041102:
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The size of struct tcpcb has changed again due to the removal
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of RFC1644 T/TCP. You have to recompile userland programs that
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read kmem for tcp sockets directly (netstat, sockstat, etc.)
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20041022:
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The size of struct tcpcb has changed. You have to recompile
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userland programs that read kmem for tcp sockets directly
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(netstat, sockstat, etc.)
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20041016:
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RELENG_5 branched here. For older entries, please see updating
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in the RELENG_5 branch.
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COMMON ITEMS:
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General Notes
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-------------
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Avoid using make -j when upgrading. From time to time in the
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past there have been problems using -j with buildworld and/or
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installworld. This is especially true when upgrading between
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"distant" versions (eg one that cross a major release boundary
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or several minor releases, or when several months have passed
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on the -current branch).
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Sometimes, obscure build problems are the result of environment
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poisoning. This can happen because the make utility reads its
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environment when searching for values for global variables.
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To run your build attempts in an "environmental clean room",
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prefix all make commands with 'env -i '. See the env(1) manual
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page for more details.
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When upgrading from one major version to another it is generally
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best to upgrade to the latest code in the currently installed branch
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first, then do an upgrade to the new branch. This is the best-tested
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upgrade path, and has the highest probability of being successful.
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Please try this approach before reporting problems with a major
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version upgrade.
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To build a kernel
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-----------------
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If you are updating from a prior version of FreeBSD (even one just
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a few days old), you should follow this procedure. It is the most
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failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
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make kernel-toolchain
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make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
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make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
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To test a kernel once
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---------------------
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If you just want to boot a kernel once (because you are not sure
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if it works, or if you want to boot a known bad kernel to provide
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debugging information) run
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make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
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nextboot -k testkernel
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To just build a kernel when you know that it won't mess you up
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--------------------------------------------------------------
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This assumes you are already running a 5.X system. Replace
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${arch} with the architecture of your machine (e.g. "i386",
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"alpha", "amd64", "ia64", "pc98", "sparc64", etc).
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cd src/sys/${arch}/conf
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config KERNEL_NAME_HERE
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cd ../compile/KERNEL_NAME_HERE
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make depend
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make
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make install
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If this fails, go to the "To build a kernel" section.
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To rebuild everything and install it on the current system.
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-----------------------------------------------------------
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# Note: sometimes if you are running current you gotta do more than
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# is listed here if you are upgrading from a really old current.
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<make sure you have good level 0 dumps>
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make buildworld
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make kernel KERNCONF=YOUR_KERNEL_HERE
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[1]
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<reboot in single user> [3]
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mergemaster -p [5]
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make installworld
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make delete-old
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mergemaster [4]
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<reboot>
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To cross-install current onto a separate partition
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--------------------------------------------------
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# In this approach we use a separate partition to hold
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# current's root, 'usr', and 'var' directories. A partition
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# holding "/", "/usr" and "/var" should be about 2GB in
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# size.
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<make sure you have good level 0 dumps>
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<boot into -stable>
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make buildworld
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make buildkernel KERNCONF=YOUR_KERNEL_HERE
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<maybe newfs current's root partition>
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<mount current's root partition on directory ${CURRENT_ROOT}>
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make installworld DESTDIR=${CURRENT_ROOT}
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cd src/etc; make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
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make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
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cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
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<edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
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<reboot into current>
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<do a "native" rebuild/install as described in the previous section>
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<maybe install compatibility libraries from src/lib/compat>
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<reboot>
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To upgrade in-place from 5.x-stable to current
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----------------------------------------------
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<make sure you have good level 0 dumps>
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make buildworld [9]
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make kernel KERNCONF=YOUR_KERNEL_HERE [8]
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[1]
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<reboot in single user> [3]
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mergemaster -p [5]
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make installworld
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make delete-old
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mergemaster -i [4]
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<reboot>
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Make sure that you've read the UPDATING file to understand the
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tweaks to various things you need. At this point in the life
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cycle of current, things change often and you are on your own
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to cope. The defaults can also change, so please read ALL of
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the UPDATING entries.
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Also, if you are tracking -current, you must be subscribed to
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freebsd-current@freebsd.org. Make sure that before you update
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your sources that you have read and understood all the recent
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messages there. If in doubt, please track -stable which has
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much fewer pitfalls.
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[1] If you have third party modules, such as vmware, you
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should disable them at this point so they don't crash your
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system on reboot.
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[3] From the bootblocks, boot -s, and then do
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fsck -p
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mount -u /
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mount -a
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cd src
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adjkerntz -i # if CMOS is wall time
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Also, when doing a major release upgrade, it is required that
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you boot into single user mode to do the installworld.
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[4] Note: This step is non-optional. Failure to do this step
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can result in a significant reduction in the functionality of the
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system. Attempting to do it by hand is not recommended and those
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that pursue this avenue should read this file carefully, as well
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as the archives of freebsd-current and freebsd-hackers mailing lists
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for potential gotchas.
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[5] Usually this step is a noop. However, from time to time
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you may need to do this if you get unknown user in the following
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step. It never hurts to do it all the time. You may need to
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install a new mergemaster (cd src/usr.sbin/mergemaster && make
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install) after the buildworld before this step if you last updated
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from current before 20020224 or from -stable before 20020408.
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[8] In order to have a kernel that can run the 4.x binaries
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needed to do an installworld, you must include the COMPAT_FREEBSD4
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option in your kernel. Failure to do so may leave you with a system
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that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
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is required to run the 5.x binaries on more recent kernels.
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Make sure that you merge any new devices from GENERIC since the
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last time you updated your kernel config file.
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[9] When checking out sources, you must include the -P flag to have
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cvs prune empty directories.
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If CPUTYPE is defined in your /etc/make.conf, make sure to use the
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"?=" instead of the "=" assignment operator, so that buildworld can
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override the CPUTYPE if it needs to.
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MAKEOBJDIRPREFIX must be defined in an environment variable, and
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not on the command line, or in /etc/make.conf. buildworld will
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warn if it is improperly defined.
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FORMAT:
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This file contains a list, in reverse chronological order, of major
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breakages in tracking -current. Not all things will be listed here,
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and it only starts on October 16, 2004. Updating files can found in
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previous releases if your system is older than this.
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Copyright information:
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Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
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Redistribution, publication, translation and use, with or without
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modification, in full or in part, in any form or format of this
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document are permitted without further permission from the author.
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THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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If you find this document useful, and you want to, you may buy the
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author a beer.
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Contact Warner Losh if you have any questions about your use of
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this document.
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$FreeBSD$
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