how do i upgrade from ubuntu 12.10 to 13.04?
12578
How do I upgrade to a newer version of Ubuntu?
9901
How to upgrade from 18.10 to 19.10, using the command line?
74079
How to Upgrade Ubuntu 12.04.2, 12.04.3 to 12.04.4, the next Hardware Enablement Stack?
76628
Update to 3.13 kernel on Ubuntu 13.10
66915
How to request a package upgrade in the next Ubuntu release
101714
Is there any way to roll back the most recent upgrade?
43778
Is it possible to "upgrade" from a 32bit to a 64bit installation?
19288
Update manager doesn't offer an upgrade to the new release
60659
Install newer package version from trusty-backports
421
How do I update a Drupal distribution to a newer version?
144507
No facility exists in Update Manager to upgrade to a new version, why?
121201
Why can't I update applications without upgrading the whole OS?
41825
How to downgrade from 64-bit to 32-bit
10709
Can i upgrade ubuntu without losing my apps and files?
2136
How to roll back Ubuntu to a previous version?
14631
Can someone clarify Ubuntu (Debian) dist-upgrade for me?
113056
How to upgrade from 12.04 to 12.10 using CD?