Having googled around, it seems rsync + bless used to work,
but might not now:
http://discussions.apple.com/thread.jspa?threadID=2199780&tstart=0
I generally use Carbon Copy Cloner to image a disk, and rsync to keep
parts of it up to date (eg just one user account). To keep the whole
disk up to date I'll use CCC again, which does a diff-update itself.
Cheers - Jaimie
--
Homographic homophonic autantonyms: "They're words that
do their job in the most sullen, passive-aggressive way
possible, and they totally get away with it!"
-- http://www.qwantz.com/index.php?comic=1104
> I generally use Carbon Copy Cloner to image a disk, and rsync to keep
> parts of it up to date (eg just one user account). To keep the whole
> disk up to date I'll use CCC again, which does a diff-update itself.
I might look into CCC, but I'd prefer rsync if I can get
that to work. I think there's a good chance Apple will
update rsync to take care of hfs compression.