Wednesday, April 9, 2008

Upgrading from FreeBSD 6.X to FreeBSD 7.X

o # switch to a reasonable run-time environment
$ cd /; exec `/usr/bin/which bash sh head -1`
$ PATH=/bin:/usr/bin:/sbin:/usr/sbin; umask 022; unset TMOUT

o # install backward compatibility files
# (locale data to /usr/local/share/compat/, libraries to /usr/local/lib/compat/)
# notice: via binary packages as FreeBSD 7.x ports cannot be installed under FeeBSD 6.X
$ url="ftp://ftp.freebsd.org/pub/FreeBSD/ports/i386/packages-7-current/All"; \
( cd /tmp; for pkg in localedata-5.4.tbz compat6x-i386-6.2.602110.200706.tbz; do \
fetch -p $url/$pkg; pkg_add $pkg; rm -f $pkg; \
done )

o # install latest FreeBSD Upgrade Toolkit
$ cd /usr; \
fetch http://people.freebsd.org/~rse/dist/freebsd-adm-1.2.2.tar.gz; \
rm -rf adm; gunzip > .
(later replace "." with "RELENG_7")

o # upgrade /usr/src (already required for "mergemaster -p" below!)
$ (cd /usr/src && make cleandir); \
(cd /usr/adm && make update)

o # upgrade kernel configuration
$ vi /sys/`uname -m`/conf/`hostname -s tr 'a-z' 'A-Z'`
>> options COMPAT_FREEBSD6
>> options SCTP # Stream Transmission Control Protocol
>> options UFS_GJOURNAL # Enable gjournal-based UFS
>> options STOP_NMI # Stop CPUS using NMI instead of IPI
>> options AUDIT # Security event auditing
>> options GEOM_LABEL # Provides labelization
<<>> options GEOM_PART_GPT # GUID Partition Tables.
<<>> options COMPAT_43TTY # BSD 4.3 TTY compat [KEEP THIS!]
>> device uart # Generic UART driver
<<>> device le # AMD Am7900 LANCE and Am79C9xx PCnet
>> device firmware # firmware assist module
>> device dcons # Dumb console driver
>> device dcons_crom # Configuration ROM for dcons

o # prepare the upgrade
# (mainly create "ftp" group)
$ mergemaster -p

o # build new system
$ cd /usr/adm && make world-build kernel-build

---- INSTALL ----------------------------------------------------------------

o # upgrade system
$ make world-install kernel-install

o # cleanup system (part 1)
$ rm -f /etc/rc.d/ike /etc/rc.d/pccard /etc/rc.d/pcvt /etc/rc.d/ramdisk
$ rm -f /etc/rc.d/ramdisk-own /etc/rc.d/usbd
$ make etc
$ make clean

o # reboot into upgraded system
$ shutdown -r now

---- CLEANUP ----------------------------------------------------------------

o # switch to a reasonable run-time environment
$ cd /; exec `/usr/bin/which bash sh head -1`
$ PATH=/bin:/usr/bin:/sbin:/usr/sbin; umask 022; unset TMOUT

o # cleanup system (part 2)
$ ( for dir in /bin /sbin /usr/bin /usr/sbin /usr/libexec /usr/libdata; do \
find $dir -mtime +2 -type f -xdev -print; \
find $dir -mtime +2 -type l -xdev -print; \
done ) >/tmp/remove
$ vi /tmp/remove
# REVIEW FILES TO REMOVE MANUALLY
$ cat /tmp/remove xargs rm -f
$ ( for dir in /lib /usr/lib; do \
find $dir -mtime +2 -type f -xdev -print; \
find $dir -mtime +2 -type l -xdev -print; \
done ) grep -v /usr/lib/compat >/tmp/move
$ vi /tmp/move
# REVIEW FILES TO MOVE MANUALLY
$ for x in `cat /tmp/move`; do chflags noschg $x; mv $x /usr/lib/compat/; done
$ cd /usr/src; make BATCH_DELETE_OLD_FILES=YES delete-old delete-old-libs

o # reboot into cleaned system
# (mainly to reload the shared library cache and to
# make sure everything really still works fine)
$ shutdown -r now

ATTENTION: THIS UPGRADE PROCEDURE MIGHT NOT WORK FOR YOU AS YOUR
ENVIRONMENT IS DIFFERENT. ALSO, THIS UPGRADE PROCEDURES MIGHT DESTROY
YOUR SYSTEM AND YOU POTENTIALLY MIGHT LOOSE DATA. NO WARRANTY AT ALL.
USE IT AT YOUR OWN RISK!



Author: Ralf S. Engelschall
Created: 2007-05-24
Modified: 2007-07-13
Version: 1.0

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