Upgrading from 14.04 LTS to 16.04 LTS
11556
Can I smoothly upgrade from one LTS to next LTS release?
58979
How can I upgrade Ubuntu LTS to the next one offline?
105335
How do I upgrade my Ubuntu server from one LTS version to another? Is this safe?
60659
Install newer package version from trusty-backports
147789
Updating core from 8.4.4 to 8.6.1
23302
How do I install/upgrade r-base to the latest version?
36703
How do I upgrade from 12.10 to 13.04?
15687
How do I resume a release upgrade?
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
41964
Where is the update to 14.04.1 in update-manager?
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
55211
Problem when upgrading to Ubuntu 14.04 from Ubuntu 12.04
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
35566
Kernel did not upgrade between 14.04 LTS to 16.04 LTS
9901
How to upgrade from 18.10 to 19.10, using the command line?
64558
What does `do-release-upgrade` really do?
56282
16.04 LTS upgrade alert- How to handle it?