Comment 29 for bug 1913421

With this going into Impish and that now being in feature freeze without any panic-bugs on this for a while I've started to backport the mount unit, and established a test plan which is around this.

(most reasonable in monospace)

                          Bionic Focal Hirsute Impish
installs fine
status after install
removes fine
status after remove
reinstalls fine
status after reinstall
upgrades fine
status after upgrade
purges fine
status after purge
---
Load old modules

Let me know if there is more to pre-check in your opinion.