On 05/12/2015 11:25 AM, Neal Becker wrote:
It would be a great idea if Fedora would provide
>a way to downgrade to the immediately previous release
>(from which the upgrade was performed), if the user
>decides (for some reason) to return to the previous
>release. This would completely obviate the need to
>do a backup, and restore
>
I'm hoping that my f22 install into a btrfs subvol will do this for me.

...and that's exactly what the "snapper" plugin for yum and dnf is intended to do. Before upgrades, a (btrfs, ext4 or thin provisioned LVM) snapshot is created for the purpose of rollback.
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