[New: openFATE 322055] Safe installation mode

Feature added by: Sławomir Lach (Lachu) Feature #322055, revision 1 Title: Safe installation mode openSUSE Distribution: Unconfirmed Priority Requester: Important Requested by: Sławomir Lach (lachu) Partner organization: openSUSE.org Description: Allow to install system onto new Btrfs subvolume, run from it and remove previous version of system, if all going well. -- openSUSE Feature: https://features.opensuse.org/322055