Feature #7019: Better support writable boot devices with read-only switch
Incremental upgrades: test if the USB stick is read-only
When accepting to upgrade with a read-only USB device, the error message is generic and points to .xsession-errors which doesn't give a clue. That should be improved.
Error while installing the upgrade
An error occured while installing the upgrade.
Your Tails device needs to be repaired and might be unable to restart.
Please follow the instructions at file:///usr/share/doc/tails/website/doc/upgrade/error/install.en.html
For debugging information, see /home/amnesia/.xsession-errors
$ tail .xsession-errors localuser:tails-upgrade-frontend being added to access control list glibtop: Non-standard uts for running kernel: release 3.12-1-amd64=3.12.0 gives version code 199680 The system is up-to-date localuser:tails-upgrade-frontend being removed from access control list ** Message: NM disappeared