12-04 lts auto update is "broken" do I need to reinstall?
9345
What does this red icon on my panel mean?
34720
What is the difference in command-line "sudo apt-get update" and using Synaptic or Auto-updater?
58979
How can I upgrade Ubuntu LTS to the next one offline?
30754
Cannot update: "No available releases found"
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
64509
Can't update from official repositories [Error 409]
92807
There's an issue with an Alpha/Beta Release of Ubuntu, what should I do?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
118978
Not all updates can be installed: partial upgrade
101714
Is there any way to roll back the most recent upgrade?
85958
Automatic updates are not auto-downloading
113145
What does 'apt-get install update' do?
50810
No upgrade available for 19.04 from 18.10
88901
Updates for Ubuntu LTS Desktop versus LTS Server
80233
Upgrade to 20.04 from 19.10 isn't available
149582
how to *completely* turn off automatic updates in Windows 10
109056
How to automatically install updates in linux mint 17.1