I am trying to upgrade from Ubuntu 18.04.5 LTS to 20.04 LTS. I know that it is only possible to upgrade from a LTS (18.04) version to (20.04), but should 18.04.5 be considered as 18.04 ? Or do I need to reinstall?
I've tried the GUI way with "Software update" which doesn't find any updates and as well these commands;
apt-get update
apt-get upgrade
apt-get dist-upgrade
do-release-upgrade
which gives me
There is no development version of an LTS available.
To upgrade to the latest non-LTS develoment release
set Prompt=normal in /etc/update-manager/release-upgrades.