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Re: System snapshots

On Mon, Jan 10, 2005 at 06:40:39PM +0100, Petter Reinholdtsen wrote:
> [Otavio Salvador]
> > No because some applications doesn't depends only of configuration
> > files but data-files. When you purge then, all data files will be
> > removed together (in major of times). Another problem is how you can
> > revert upgrade processes in database files and like?
> RPM have a feature allowing it to do upgrade transactions and rollback
> of failed installs, where it will include the data files in the
> transaction log.  I read about this in the Linux Journal article
> "Transactions and Rollback with RPM" by James Oden,
> <URL:http://www.linuxjournal.com/article/7034>.
> Such feature would be nice to have in Debian as well.  If you have a
> very short upgrade window, where one will have to abort and roll back
> if the upgrade fail, it would be helpful if dpkg would allow you to
> roll back the upgrade.

Seems like a poor reimplementation of a backup system to me. It's
independently useful, and gains nothing from being embedded into the
package manager, so why stuff it into the package manager?

Personally, I've been use dm-snapshot to cover system upgrades

  .''`.  ** Debian GNU/Linux ** | Andrew Suffield
 : :' :  http://www.debian.org/ |
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