RFC: Btrfs snapshots feature for F13

James Antill james at fedoraproject.org
Tue Nov 17 14:53:03 UTC 2009


On Tue, 2009-11-17 at 08:10 -0500, Josef Bacik wrote:
> On Tue, Nov 17, 2009 at 2:48 AM, Jeff Garzik <jgarzik at pobox.com> wrote:
> > As the URL notes under "Detailed Description," that is not handled at all.
> >  It wraps all file I/O, yum or not, into the snapshot.
> 
> Yeah but you can't roll back userland transactions.  Not to mention
> you are talking about an interface that may change quite a bit over
> the next year.

 That seems like a significant limitation, I'm also not sure that the
current transaction API would be usable by rpm. Anyway...

>   We have snapshotting abilities now, and yes it's a big
> hammer, but just because its a bit of a blunt instrument doesn't mean
> we shouldn't take advantage of it.

 This implies that "all you have is a hammer" but you can already run
"yum history undo".

-- 
James Antill - james at fedoraproject.org
"I'd just like to see a realistic approach to updates via
 packages." -- Les Mikesell




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