compressed HDD image using dd...clearing unused blocks
Michael Eubanks
mse0206 at yahoo.com
Sun Jul 8 05:54:44 UTC 2007
Hello all,
I am updating a system that has been around for some
time now. I would like to make a compressed disk
image after the final setup is complete, although, I'm
guessing that the unused blocks will not allow me to
compress the image as well as I could with a
previously clean disk (considering the disk has been
in use for some time now). Is there a way to do this
- zero out unused blocks to optimize compression? I
generally do this with Windows machines using the
cipher command (killing cipher after it has finished
writing zeroes). After running cipher I use dd to
create a compressed HDD image for later use. I'd like
to be able to do the same with FreeBSD.
-Michael S. Eubanks
mse0206 at yahoo.com
____________________________________________________________________________________
Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games.
http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow
More information about the freebsd-chat
mailing list