Troubleshooting for automatic upgrades that fail to restart

Originally created by @emmapeel on #10347 (Redmine)

When users cannot boot after an automatic upgrade, they are directed to the page

https://tails.boum.org/doc/upgrade/error/install/

In this page there are some commands to run, but this commands are meant for a booting Tails:

the output of the five following commands, run in a Terminal:

   ls -l /lib/live/mount/medium/live
   cat /lib/live/mount/medium/live/Tails.module
   mount
   df -h
   free -m

The user cannot run the broken Tails, so the instructions should be more:

- Start another Tails

- Mount the Tails partition with Disk Utility (not TailsData)
- Report a bug with the output of the five following commands, run in a Terminal:

ls -lh /lib/live/mount/medium/live
cat /lib/live/mount/medium/live/Tails.module
mount
df -h
free -m

or something like that.

Feature Branch: doc/10347-broken-after-automatic-upgrade

Related issues

• Related to #10239 (closed)
• Related to #15130
• Related to #15557 (closed)
• Blocks #16711 (closed)