I can't upgrade Ubuntu 10.10
1520
How to install software or upgrade from an old unsupported release?
6833
Why is my Ubuntu 18.04 distribution asking me to upgrade to Pop!_OS 19.10?
140850
Why does do-release-upgrade on Xubuntu running version 18.04 not offer to update to 20.04.1?
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
149984
Can't update or install anything. Ubuntu 3.11.0.14
35093
Upgrading from the command line?
15687
How do I resume a release upgrade?
140893
Error when using apt-get update
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
36703
How do I upgrade from 12.10 to 13.04?
113056
How to upgrade from 12.04 to 12.10 using CD?
93942
How to fix "Failed to download repository information" error while updating?
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
123413
Will apt-get dist-upgrade upgrade my system to a newer version?
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
151605
upgrading from 15.10 to 16.04 apt not installed
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?