Drawing lessons from fatal SELinux bug #1054350
awilliam at redhat.com
Fri Jan 24 17:41:13 UTC 2014
On Fri, 2014-01-24 at 10:58 +0100, Sergio Pascual wrote:
> 2014/1/24 Ralf Corsepius <rc040203 at freenet.de>
> Certainly, downgrading installations which already upgraded to
> faulty packages would not work.
> The situation (a broken system that cannot be upgraded) could be
> mitigated a little bit by using yum + system snapshots. You can
> rollback to a previous sane system.
> There is a plugin yum-plugin-fs-snapshot, but it requires better
> documentation and system integration.
> Currently (I don't know how current is F16 documentation) it requires
> running lvm by hand
AIUI there is/was a long-term plan to integrate this as core
functionality using btrfs snapshots - in fact that was one of the major
attractions of the idea of switching to btrfs-by-default in the first
place. I believe those involved didn't think the LVM-based
implementation was clean/robust enough to use by default, but a
btrfs-based implementation would be. Do correct me if I'm wrong.
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