On Mon, 20 Nov 2006 at 13.17.55 -0600, Florin Iucha wrote: > On Mon, Nov 20, 2006 at 11:44:49AM -0600, Shawn Fertch wrote: > > >> I suggest in the future you do not LVM root (/). Along with /boot (which > > >> cannot be LVM'd) it is a good idea to avoid doing it on your root > > >> partition for the reasons you've now learned. > > > > > >It depends. If you have root on LVM you can snapshot it and have nice > > >backups. Granted, / should not be changing much at the hour you are > > >doing the backups, but still... > > > > Isn't snapshot a function of the filesystem type and not LVM? > > Snapshot is a function of the block device. Some filesystems, such as > XFS have a built-in freeze/dump capability which can simulate it > pretty well. What LVM snapshot is able to do, is allow you to > "freeze" a block device for online back-up while writing pending The filesystem has a little to do with it, I think. My memory is hazy, but I vaguely remember once having a problem where I'd make a snapshot LV, but when I mounted it, it was inconsistent and needed an fsck. Given that the filesystem was contained in a snapshot LV, this process did not exactly get too far off the ground.... -- Sidney CAMMERESI http://www.cheesecake.org/sac/