Why is Ubuntu 10.10 refusing to upgrade?
1520
How to install software or upgrade from an old unsupported release?
66915
How to request a package upgrade in the next Ubuntu release
110148
Why does `do-release-upgrade` skip a version?
63176
How can I update to Ubuntu 21.04?
2236
Why don't the Ubuntu repositories have the latest versions of software?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
67481
How to revert a do-release-upgrade?
140371
Update Ubuntu 10.04
116445
"Can't check signature: public key not found" while upgrading, why?
128471
How do I update from 9.0.10 to 9.1.0?
35093
Upgrading from the command line?
48809
"The upgrade has aborted" error, how to proceed?
126659
upgrade from 11.10 to 12.04 - No upgrade option available in update manager
17645
Unable to upgrade pip
31506
How do I update Ubuntu manually?
43917
What is the difference between apt-get update and upgrade?
144837
Tell Windows 7 to Stop Trying to Upgrade to Windows 10?