On Thu, Oct 25, 2012 at 01:30:20PM +0100, Richard Hughes wrote: > I'm planning to use "btrfs subvolume snapshot -r <name>" in the system > upgrade functionality[1] if the user is using btrfs for their root file > system. We've got most of the bits in place already for Fedora 18. > > One think that confuses me is the convention for the naming of > snapshots. Is there any conventions or prior art there? Can I add > metadata to the snapshot so that I don't have encode everything in the > snapshot name itself?
How about user xattrs? IIRC, that's the user.* namespace. The only convention I'm aware of is Ubuntu's use of an @ substitution, where the subvolume to be mounted at / is called @, and the subvolume to be mounted at /home becomes @home. Both of those subvolumes are stored in the (otherwise empty) top-level of the filesystem, which is not mounted in normal operation. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- This chap Anon is writing some perfectly lovely stuff --- at the moment.
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