On Sun, May 24, 2009 at 10:03 PM, Dmitrijs Ledkovs <dmitrij.led...@gmail.com > wrote:
> 2009/5/25 Christopher James Halse Rogers <r...@ubuntu.com>: > > Having some sort of "roll back to previous package version" button might > > be a nice idea, though it would need to be designed in such a way that > > made it clear there was no guarantee that it'd work. I'm not sure > > whether we'd be doing users a favour here. > > > > There is a technology to do this but it's not GPL... > > OpenSolaris and Nexetra use ZFS which supports snapshots. Before each > package installation transaction (i.e. one upgrade of N packages) they > take a snapshot of a system, do the upgrade. If the user doesn't like > it, they can rollback to any of the previous snapshots because they > are available. > > Nexetra for that wrote apt-clone (I think) to actually do it. > > Unfortunatly there isn't a GPL filesystem which supports continous > snapshots..... Will Btrfs do this when it is stable?
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