Lamar Owen wrote:
On Friday 06 October 2006 22:42, Joseph Cheng wrote:
Thx for all the suggestions ppl. I think for simplicity I will either
go with the knoppix & dd solution or I also found ghost 4 unix
http://www.feyrer.de/g4u/
I have used the dd solution a number of times, and it works quite well.
There are, however, a couple of suggestions I would make:
1.) Use the CentOS rescue mode (boot CD number 1, type 'linux rescue' at the
boot prompt) and tell it not to mount your drives. No need to download Yet
Another Linux Distribution to do the work. Or use the CentOS LiveCD.
2.) While the dd is running, you can check on its progress. Switch to another
virtual console (you are by default on VC 1; hit ALT-F2 to go to VC 2) and
send the dd process a SIGUSR1 (run a ps ax and make a note of the dd
process's PID; then kill -USR1 $PID); then switch back to VC 1 and you'll see
where dd is in your copy.
You can then run fdisk or parted and grow the partition; then you can resize
the filesystem (I'm fairly certain the rescue mode includes the resizing
program; not sure about the LiveCD, but I would think it does). The native
CentOS tools to do this are, in my experience, far superior in quality to the
various third party solutions (including Symantec Ghost) availabe to do this
sort of thing. They are a little harder to use, though they seem to work
better.
Interesting. I wonder if you used this method to copy the image from
one disk to an identical disk hda-->hdb if you could then unplug hda and
have the system boot from the "copy" without any other intervention.
Kind of like a poor man's RAID1 except you only get back to where you
were at the instant the snapshot was taken. I've never tried this since
RAID cards are so cheap, but I guess I'm wondering out loud if that
would work. Anyone tried it?
Cheers,
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