How to rollback an incomplete system upgrade?
2136
How to roll back Ubuntu to a previous version?
132316
How can I find out what went wrong with a failed Windows update?
63176
How can I update to Ubuntu 21.04?
51768
Could not calculate the upgrade, what happened?
36703
How do I upgrade from 12.10 to 13.04?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
31506
How do I update Ubuntu manually?
53938
Can I upgrade from Windows 7 32-bit to Windows 7 64 bit without reinstalling all of my software?
125976
What Happens When I Upgrade Ubuntu?
41077
Lost power during upgrade, how do I recover?
49658
Elegant way to check for missing packages and install them?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
28535
How I do a system restore?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
9901
How to upgrade from 18.10 to 19.10, using the command line?
18052
How to remove/install a package that is not fully installed?