Upgrading Using "FreeBSD Update"

[jb]

Jinsong Zhao <jszhao <at> yeah.net> writes:

> ... 
> My questions is: how to rebuild all third-party applications? I have 
> kept the ports tree up to date using
> # portsnap fetch update
> and
> # portmaster -Ga
> every day.
> ...

I would advise you to drop -G option and use these entries:
# portsnap fetch update
# portmaster -f portmaster 
# portmaster -a -f

Ref: PORTMASTER(8) Examples.
jb