16.04: Cannot update OwnCloud
6809
How do I fix the GPG error "NO_PUBKEY"?
54991
How can I install updates and shut down from the command line?
85958
Automatic updates are not auto-downloading
157398
How do I deploy an OpenStack cloud with Juju?
8525
Error Updating: izx/askubuntu/ubuntu xenial Release' does not have a Release file
80106
How do I enable automatic updates?
128471
How do I update from 9.0.10 to 9.1.0?
132495
14.04.5 to 16.04 Update failed - xenial.tar.gz.gpg missing
29191
Upgrade to 18.04 from 17.10
158791
Bogus message from automatic updates
158270
Where do I need to change "Ubuntu" when naming my own custom distribution?
56282
16.04 LTS upgrade alert- How to handle it?
158145
A software update is required to use this startup disk - does not update
144507
No facility exists in Update Manager to upgrade to a new version, why?
50810
No upgrade available for 19.04 from 18.10
46424
Cannot update software center repositories
49477
How can I disable cloud-init?