I had some issues upgrading openSUSE 15.2. In one of those attempts, I needed to roolback the system to a snapshot of the system prior to the upgrade. These were the steps:
- Boot to the desired snapshot (use F12 during boot)
- Check if the system status is OK
- At the terminal, run:
sudo snapper rollback
Some tips that helped during the upgrade from openSUSE 15.2 were taken from a post in Linux Kamarada:
- remove virtualbox-kmp-default package (indeed, this package seemed to be the culprit for the upgrade failing)
- run
zypper dupfirst time with--download-onlyflag - run it a second time, but on a virtual
terminal
(Ctrl+Alt+F1) logged as root and with
runlevel 3:
init 3