mount the other drive say as "/backup"
rsync -ax --delete --force / /backup/
I think that will do it.
You might want to run a list of rsync commands on a list of directories if you are coppying a lot of files. I do the same thing where I back up critical files with one script hourly - other user files nughtly - and the system stuff manually after installing new software. I like doing it this way rather than raid 1 becaue if I screw up I can use rsync to undo it.
Dick Streefland wrote:
On Thursday 2004-02-19 10:38, Ramón Oliver wrote:
| I want to create an exact copy of a whole hard disk and to maintain this copy | synchronised with the "original" one. The idea is to have a safe backup that | allows me, in case the "original" disk fails, to change it by the "clone" | disk and start the computer as if nothing had happened. The computer runs | Linux.
| | I heard a good option for this purpose is to use dd to make the copy of the | whole hard disk followed by rsync (launched via crontab) to synchronise the | "original" and "clone" drives. rsync seems ideal for this task, but
| | How do I do that with rsync!?
Why don't you use RAID-1?
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