Sergio Pascual wrote:
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.
The big problem with that approach (other than the granularity issue already
pointed out) is disk space. Even with a smart snapshotting technology that
really only keeps on disk exactly what changed, it still requires a lot of
extra disk space.
Kevin Kofler