freebsd8.1升级到8.2

freebsd-update -r 8.2-RELEASE upgrade
freebsd-update -r 8.2-RELEASE install
reboot
freebsd-update install

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The following components of FreeBSD seem to be installed:
kernel/generic world/base
 
The following components of FreeBSD do not seem to be installed:
src/base src/bin src/cddl src/contrib src/crypto src/etc src/games
src/gnu src/include src/krb5 src/lib src/libexec src/release src/rescue
src/sbin src/secure src/share src/sys src/tools src/ubin src/usbin
world/catpages world/dict world/doc world/games world/info
world/manpages world/proflibs