參考文件

1. http://people.freebsd.org/~rse/upgrade/freebsd-upgrade-6x-7x.txt

install compat libraries

1. fetch -p ftp://ftp.freebsd.org/pub/FreeBSD/ports/i386/packages-7.1-release/All/localedata-5.4.tbz
2. pkg_add localedata-5.4.tbz
3. fetch -p ftp://ftp.freebsd.org/pub/FreeBSD/ports/i386/packages-7.1-release/All/compat6x-i386-6.3.603000.200801.tbz
4. pkg_add compat6x-i386-6.3.603000.200801.tbz

install upgrade toolkit

1. cd /usr
2. fetch http://people.freebsd.org/~rse/dist/freebsd-adm-1.2.2.tar.gz
3. rm -rf adm
4. tar xvfz freebsd-adm-1.2.2.tar.gz
5. rm -f freebsd-adm-1.2.2.tar.gz
6. vi /usr/adm/cfg/csup.src
   • replace RELENG_6 to RELENG_7

Upgrade

Download new source tree

1. vi /etc/cvsupfile
   • add src-cddl
2. cd /usr/src && make cleandir
3. cd /usr/adm && make update

Merge master files

1. mergemaster -p

build new system

1. cd /usr/adm && make world-build kernel-build

install new system

1. make world-install kernel-install
2. rm -f /etc/rc.d/ike /etc/rc.d/pccard /etc/rc.d/pcvt /etc/rc.d/ramdisk
3. rm -f /etc/rc.d/ramdisk-own /etc/rc.d/usbd
4. make etc
5. make clean
6. reboot

Cleanup

1. ( 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
2. vi /tmp/remove
   • REVIEW FILES TO REMOVE MANUALLY
3. cat /tmp/remove | xargs rm -f
4. ( 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
5. vi /tmp/move
   • REVIEW FILES TO MOVE MANUALLY
6. for x in `cat /tmp/move`; do chflags noschg $x; mv $x /usr/lib/compat/; done
7. cd /usr/src; make BATCH_DELETE_OLD_FILES=YES delete-old delete-old-libs
8. shutdown -r now
   • After reboot, System is clean.