Upgrade to 14.04 LTS from 15.04
2136
How to roll back Ubuntu to a previous version?
113056
How to upgrade from 12.04 to 12.10 using CD?
49161
Upgrade manager wants me to do a partial upgrade
56225
Do I have to download both the 14.04 and the 14.04.1 versions of ubuntu?
151605
upgrading from 15.10 to 16.04 apt not installed
9901
How to upgrade from 18.10 to 19.10, using the command line?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
69200
How do I reinstall Ubuntu Software in Ubuntu 20.04 LTS version?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
211
Can I skip over releases when upgrading?
60659
Install newer package version from trusty-backports
74079
How to Upgrade Ubuntu 12.04.2, 12.04.3 to 12.04.4, the next Hardware Enablement Stack?
14937
Windows installer for Ubuntu 14.04 LTS onwards
13970
Why am I not getting the Ubuntu 18.04 upgrade?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
31506
How do I update Ubuntu manually?
140371
Update Ubuntu 10.04