downgrade ubuntu 14.10 to ubuntu 14.04 or 12.04
2136
How to roll back Ubuntu to a previous version?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
46084
Can I downgrade from macOS Sierra to Snow Leopard (OS X 10.6)?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
63176
How can I update to Ubuntu 21.04?
30531
What version of Ubuntu should I pick?
105231
How to downgrade a package using dpkg
149044
Can I downgrade to an earlier version of Android after installing an OTA update?
38590
How do I suppress the "New release '12.10' available" message?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
31506
How do I update Ubuntu manually?
105173
Downgrade 2.3.6 to 2.2.2 - Nexus One
63232
How to update kernel to the latest mainline version without any Distro-upgrade?
45154
Where can I find 32-bit version of Ubuntu?
101714
Is there any way to roll back the most recent upgrade?
140371
Update Ubuntu 10.04
129
How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?