Doing a manual upgrade doesn't allow automatic upgrade on next version
It happened once that someone had to do a manual upgrade for 4.8 and was asked again to do a manual upgrade for 4.9.
Let's investigate this further here in case it happens again.
To debug this further, we need the output of:
du -csh /lib/live/mount/medium/*
ls -lARh /lib/live/mount/medium/
To workaround this issue, users can:
- Download the latest USB image
- Install a fresh USB stick
- Back up the old USB stick on the new USB stick: https://tails.boum.org/doc/first_steps/persistence/copy/