re-introduce GDM error messages before Welcome Screen, and add Disk Failure error message too (!1412) · Merge requests · tails / tails · GitLab

Give clearer errors before GDM starts when squashfs fails. This closes #16030 (closed), #20212 (closed)
Add regression tests for #20205 (closed)
Actually fixes #20205 (closed)

Edited Feb 20, 2024 by boyska