Prevent system user uid:s and gid:s from changing between releases
In Tails 3.6 the uid and gid are different compared to previous releases, making incremental upgrades impossible. I.e. it is #13426 (closed) all over again (see discussion there for details on why it breaks incremental upgrades). Let’s fix this for good this time!
The automatic upgrade bug this will fix was identified in aufs. Assuming overlayfs hasn’t this bug:
- either #15281 (closed) is done strictly before #8415 (closed), and then we need to implement this ticket as part of #15281 (closed);
- or #8415 (closed) is done before #15281 (closed) (or simultaneously), and then we can reject this ticket after confirming that overlayfs is not affected.
Feature Branch: kibi:bugfix/15695-avoid-breaking-automatic-upgrades-to-tails-3-9
Parent Task: #15281 (closed)