How do I update from 17.10 to 18.04LTS without update manager? Update manager has been unavailable for several months
19288
Update manager doesn't offer an upgrade to the new release
109056
How to automatically install updates in linux mint 17.1
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
50810
No upgrade available for 19.04 from 18.10
144172
How to upgrade to a point release from the same base release (12.04 to 12.04.03)
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
63176
How can I update to Ubuntu 21.04?
129223
Ubuntu upgrade from 17.04 to 18.04
86777
Distribution upgrade problem "No new release found"
100135
What does "upgrade to 18.04" mean?
74990
Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
6833
Why is my Ubuntu 18.04 distribution asking me to upgrade to Pop!_OS 19.10?
83960
How do I change my update server in Ubuntu 18.04?
110148
Why does `do-release-upgrade` skip a version?
148808
Update from Mac OS X 10.6.8 to the newest version