安全補丁
# freebsd-update fetch # freebsd-update install
如果出現錯誤回滾
# freebsd-update rollback
freebsd# rehash freebsd# freebsd-update fetch Looking up update.FreeBSD.org mirrors... 3 mirrors found. Fetching public key from update5.FreeBSD.org... done. Fetching metadata signature for 8.0-RELEASE from update5.FreeBSD.org... done. Fetching metadata index... done. Fetching 2 metadata files... done. Inspecting system... done. Preparing to download files... done. Fetching 35 patches.....10....20....30.. done. Applying patches... done. The following files will be updated as part of updating to 8.0-RELEASE-p3: /boot/kernel/ip_mroute.ko /boot/kernel/ip_mroute.ko.symbols /boot/kernel/kernel /boot/kernel/kernel.symbols /boot/kernel/krpc.ko /boot/kernel/krpc.ko.symbols /boot/kernel/nfsclient.ko /boot/kernel/nfsclient.ko.symbols /boot/kernel/zfs.ko /boot/kernel/zfs.ko.symbols /etc/mtree/BSD.var.dist /lib/libzpool.so.2 /libexec/ld-elf.so.1 /usr/bin/dig /usr/bin/host /usr/bin/nslookup /usr/bin/nsupdate /usr/lib/libopie.a /usr/lib/libopie.so.6 /usr/lib/libssl.a /usr/lib/libssl.so.6 /usr/lib/libzpool.a /usr/sbin/dnssec-dsfromkey /usr/sbin/dnssec-keyfromlabel /usr/sbin/dnssec-keygen /usr/sbin/dnssec-signzone /usr/sbin/freebsd-update /usr/sbin/jail /usr/sbin/lwresd /usr/sbin/named /usr/sbin/named-checkconf /usr/sbin/named-checkzone /usr/sbin/named-compilezone /usr/sbin/ntpd /usr/sbin/rndc-confgen /usr/share/man/man2/mount.2.gz /usr/share/man/man2/nmount.2.gz /usr/share/man/man2/unmount.2.gz /var/db/freebsd-update /var/db/mergemaster.mtree freebsd# freebsd-update install Installing updates... done.
尋找版本
http://update5.freebsd.org/
升級至9.1-RELEASE
freebsd# freebsd-update upgrade -r 9.1-RELEASE
Looking up update.FreeBSD.org mirrors... 3 mirrors found. Fetching metadata signature for 9.1-RC3 from update5.freebsd.org... done. Fetching metadata index... done. Fetching 1 metadata files... done. Inspecting system... done. The following components of FreeBSD seem to be installed: kernel/generic world/base world/games world/lib32 The following components of FreeBSD do not seem to be installed: src/src world/doc Does this look reasonable (y/n)? y Fetching metadata signature for 9.1-RELEASE from update5.freebsd.org... done. Fetching metadata index... done. Fetching 1 metadata patches. done. Applying metadata patches... done. Fetching 1 metadata files... done. Inspecting system... done. Fetching files from 9.1-RC3 for merging... done. Preparing to download files...
freebsd# freebsd-update install