What is the need to upgrade Ubuntu? Can not install packages
1520
How to install software or upgrade from an old unsupported release?
121201
Why can't I update applications without upgrading the whole OS?
35152
Dependency errors for python3 and many others when I run sudo apt-get upgrade
3275
I can't seem to install Ubuntu 16.04.2
44991
A lot of missing dependencies when I try to install all software
151605
upgrading from 15.10 to 16.04 apt not installed
44209
Problem with update-manager: No module named 'apt_pkg' in Ubuntu 13.10, having installed Python 3.4 on /usr/local/lib
44846
Package 'upstart' has no installation candidate
118978
Not all updates can be installed: partial upgrade
103929
sudo apt upgrade error 18.04 (Broken Packages)
30838
How to install specific Ubuntu packages, with exact version?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
13970
Why am I not getting the Ubuntu 18.04 upgrade?
124563
Will Ubuntu minimal cd install ubuntu-desktop on release upgrade or just installed packages?
63176
How can I update to Ubuntu 21.04?
91491
How can I get "delta" packages to optimize apt-get upgrade downloads?
413
How do I install Ubuntu?