On Wed, Mar 20, 2002 at 02:35:24PM +0000, Stephen C. Tweedie wrote: > > Incidentally, Ted, having an "e2image" option to select whether or not > to copy data would be neat for doing such raw filesystem copies. We > could also add the ability to create a new uuid for the copied > filesystem. That would be safer all round, _and_ faster, than relying > on hardware disk duplicators. Hmm, maybe time to hack... > For partially filled disks, it would definitely be faster. It would also be cool if it could attempt to make a read-only snapshot, since it would really be nice to copy a mounted root filesystem. For a while I used create a backup root partition by waiting until the system was relatively quiescent, and then doing a dd of the live root partition, changing the UUID, and then running e2fsck to replay the journal. This *usually* worked, although of course it was dangerous and wasn't necessarily guaranteed to result in a stable filesystem.... - Ted
