Can't upgrade server 18.04.05 to 20.04.01
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
15687
How do I resume a release upgrade?
105992
What is the difference between ubuntu-18.04-server and ubuntu-18.04-live-server?
76241
"no public key available" while upgrading using update-manager
72152
Upgrading 16.04 to 16.04.1
37112
Upgrade from httpd 2.4.6 to 2.4.41
48809
"The upgrade has aborted" error, how to proceed?
149279
Why can not upgrade texlive2016 to texlive2017 on windows
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
77705
Unable to upgrade in ubuntu
127766
how to upgrade my Debian package with minor changes
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
128471
How do I update from 9.0.10 to 9.1.0?
28650
`apt-get update` cannot find Ubuntu servers
6833
Why is my Ubuntu 18.04 distribution asking me to upgrade to Pop!_OS 19.10?
74990
Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
29191
Upgrade to 18.04 from 17.10