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Re: [lvm-devel] [PATCH 0/3] yum-utils: fs-snapshot support for LVM snapshots


   > I think some kind of "system restore/rollback point"
   > functionality is a good idea.
   > I'm not sure, however, that Palimpsest should be the UI (it's a
   > disk utility, first and foremost) for this - it sounds like it
   > might be better to do a dedicated system-config-restorepoint
   > program for this. I don't know. That said, I think we still might
   > want to display a list of snapshots in Palimpsest for both LVM
   > and btrfs - and with good naming maybe that UI is good enough for
   > rollback purposes and we don't need a s-c-restorepoint. I don't
   > know.

Ray Strode's suggestion was to please *not* create a new s-c utility
and instead look into Palimpsest.  :)

The argument for putting it in Palimpsest, which I'm quite convinced
by, is that this is a feature that's being exposed to userspace by
filesystems (btrfs will provide its own command-line interface), and
it's appropriate and useful for Palimpsest to provide a unified GUI
for filesystem operations.  It already does that for label-setting,
fsck, resize, and so on.  Switching or creating an active snapshot
becomes just another operation.

.. but I'm happy to take on creating a system-config-snapshots if it's
preferred -- it was actually part of the first version of the rollback
proposal, before we moved towards g-d-u instead.  (If we did go with
that, I think it would make sense to tell udisks about snapshot
management and then base it on that, perhaps with some new Python
bindings for the udisks dbus interface.  Make sense?)


- Chris.
Chris Ball   <cjb laptop org>
One Laptop Per Child

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