Is it possible to upgrade from 14.04 directly to 16.04?
11556
Can I smoothly upgrade from one LTS to next LTS release?
89856
How to resume the interrupted upgrade from 14.10 to 15.04?
9901
How to upgrade from 18.10 to 19.10, using the command line?
123413
Will apt-get dist-upgrade upgrade my system to a newer version?
79358
Upgrade High-Trust Addin/App from 2013 to 2016
63232
How to update kernel to the latest mainline version without any Distro-upgrade?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
113942
Is it possible to install Python 3.x in 14.04 LTS, or upgrade from Python 2.7.6 to 2.7.8?
72152
Upgrading 16.04 to 16.04.1
75380
upgrading glibc to a version at least 2.17 or higher in ubuntu 12.04 LTS?
13970
Why am I not getting the Ubuntu 18.04 upgrade?
32200
How do I downgrade a package?
15687
How do I resume a release upgrade?
29191
Upgrade to 18.04 from 17.10
5316
Update from 14.04 to 16.04 failed with GPG error
124399
Is it possible to install Unity 6.x.x on 12.04?
35566
Kernel did not upgrade between 14.04 LTS to 16.04 LTS