How to upgrade from vivid? Where is the repository for vivid?
1520
How to install software or upgrade from an old unsupported release?
7107
How do I enable the source code repositories?
125434
How do I enable fancy apt colours and progress bars?
144241
How to obtain the latest .deb package of Vivalvi browser?
29086
How can I install themes in Lubuntu?
2670
Why is "No new release found" when upgrading from a LTS to the next?
117112
Why isn't Ubuntu moving its repositories to old-releases anymore?
21323
Where can I download the latest release of Ubuntu?
743
How do I enable the "Universe" repository?
119943
Where can I find a repository for older unsupported releases?
30645
How to install (old) packages for Ubuntu 9.04?
33175
Installing suggested/recommended packages?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
154712
How to install a package from an older version of TeXLive?
5242
How to update software installed via .deb file
34373
Where can I get the latest Ubuntu Alpha or Beta?
21444
Where can I find more Unity themes?