Ubuntu 14.04 does not update
3373
How can I get apt to use a mirror close to me, or choose a faster mirror?
140850
Why does do-release-upgrade on Xubuntu running version 18.04 not offer to update to 20.04.1?
144507
No facility exists in Update Manager to upgrade to a new version, why?
64509
Can't update from official repositories [Error 409]
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
35973
Ways to update Ubuntu (debian-based distros) offline
33651
How to upgrade from Ubuntu 12.10 to 14.04
52190
How and when is old-releases.ubuntu.com updated?
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
142310
Ubuntu 12.04 software upgrade does not show 12.10 upgrade
158145
A software update is required to use this startup disk - does not update
154072
Ubuntu 17.10 doesn't show up in update-manager
35190
"Software Updater" & "Software & Updates" not working
157123
14.04 LTS No Dash / Launcher after update through Software Updater
88901
Updates for Ubuntu LTS Desktop versus LTS Server
91210
Why does Ubuntu only support versions for a limited time (and what does it mean)?
30754
Cannot update: "No available releases found"