upgrade 18.04 to 20.04.1
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
83960
How do I change my update server in Ubuntu 18.04?
1520
How to install software or upgrade from an old unsupported release?
11166
"Require Installation Of Untrusted Packages" while upgrading with the update manager
97346
Is it possible to skip releases during an upgrade?
19288
Update manager doesn't offer an upgrade to the new release
144507
No facility exists in Update Manager to upgrade to a new version, why?
140371
Update Ubuntu 10.04
12578
How do I upgrade to a newer version of Ubuntu?
119971
Install 17.10 on 32 bit machine
13107
How to install updates via command line?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
126659
upgrade from 11.10 to 12.04 - No upgrade option available in update manager
129223
Ubuntu upgrade from 17.04 to 18.04
211
Can I skip over releases when upgrading?
11556
Can I smoothly upgrade from one LTS to next LTS release?
16050
Can I upgrade Xubuntu 18.04 32-bit?