On Tue, Jan 3, 2012 at 11:44 AM, Magnus Therning <magnus@xxxxxxxxxxxx> wrote: > On Tue, Jan 03, 2012 at 10:59:19AM -0600, C Anthony Risinger wrote: >> On Jan 3, 2012 8:51 AM, "Magnus Therning" <magnus@xxxxxxxxxxxx> wrote: >>> >>> Ouch, that sucks. I'll just revert to making copies and wasting >>> space then :( >> >> If performance isn't that enormously critical I've used FUSE based >> union file systems in the past with success ... it worked well for >> my needs. > > Do you know if it works with `schroot` though? oh right, sorry i spaced off that you had mentioned the particular app you needed it to work for -- no, it doesn't appear to support it out-of-the-box. although, since `schroot` appears to just use mount with some custom -o opts, you could probably hack it in with a `mount.<union-or-aufs>` helper, or even patch schroot pretty easily if you really wanted ;-) looks like there are some btrfs options too, not sure it works for your use case, but you could format a file with btrfs and mount on loopback (man pages seem to suggest snapshotting will be used, and loopback FS are supported) btw, i believe i used this: http://podgorny.cz/moin/UnionFsFuse ... appears to be in AUR as well. -- C Anthony
