And
I start Tails from USB drive "__internal" with network unplugged
1:1.572
And
I enable persistence
20.067
And
I remove the "cowsay" deb files from the APT cache
0.787
And
I disable the tails-virt-notify-user.service user unit
0.121
And
I log in to a new session
39.886
Then
I see the "The installation of your additional software failed" notification after at most 300 seconds
15.582
And
I can open the Additional Software log file from the notification
5.468
And
the package "cowsay" is not installed
0.711