Automatic fsck

[Phillip Susi]

Andrew Sayers wrote:
<snip>
> I assume that the equivalent of "umount $snapshot" is done within the
> kernel when the snapshot is created, because it gives you a new
> non-mounted block device.  It's therefore possible to do fsck from cron.

The snapshot was never mounted in the first place, so there is no need 
to unmount it.

As you mentioned before however, any files changed since the snapshot 
was made will be lost when you reboot and merge the snapshot back to the 
main volume.