Ubuntu 19.04 will not upgrade to Ubuntu 20.04
211
Can I skip over releases when upgrading?
17645
Unable to upgrade pip
76241
"no public key available" while upgrading using update-manager
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
12578
How do I upgrade to a newer version of Ubuntu?
127206
Python error when upgrading from 18.10 to 19.04
134080
Still can't upgrade? Is there a new delay?
117112
Why isn't Ubuntu moving its repositories to old-releases anymore?
63176
How can I update to Ubuntu 21.04?
15687
How do I resume a release upgrade?
75798
How to upgrade to the latest GNOME version?
33651
How to upgrade from Ubuntu 12.10 to 14.04
48809
"The upgrade has aborted" error, how to proceed?
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
144507
No facility exists in Update Manager to upgrade to a new version, why?
63514
How do I decide what version of Ubuntu to install?
74079
How to Upgrade Ubuntu 12.04.2, 12.04.3 to 12.04.4, the next Hardware Enablement Stack?