Installing 12.04 on a 14.04
2136
How to roll back Ubuntu to a previous version?
21524
I want to Change ubuntu 14.04 from 64 bit to 32 bit
134143
How do I know what packages I need to install?
38518
Macbook Air - how to install a dual bootable Ubuntu 14.04 LTS
63176
How can I update to Ubuntu 21.04?
131371
How can I install a newer kernel?
41964
Where is the update to 14.04.1 in update-manager?
31506
How do I update Ubuntu manually?
35146
Will apt-get dist-upgrade upgrade my system to newer version?
71368
Ubuntu 12.04 won't install
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
55211
Problem when upgrading to Ubuntu 14.04 from Ubuntu 12.04
89744
Extended support for Ubuntu 12
119474
Installing QGIS on Ubuntu 14.04?
113942
Is it possible to install Python 3.x in 14.04 LTS, or upgrade from Python 2.7.6 to 2.7.8?
25678
How to do a minimal install of 20.04?