Why is Xubuntu 17.04 refusing to update my software?
1520
How to install software or upgrade from an old unsupported release?
65099
Unable to install any updates through update manager/apt-get upgrade
967
How can I avoid "please insert CD/DVD" error when updating Ubuntu?
90212
'http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 ./ Release' is not signed
129223
Ubuntu upgrade from 17.04 to 18.04
107009
ubuntu 18.04 apt-get upgrade problem "redirection loop encountered."
149279
Why can not upgrade texlive2016 to texlive2017 on windows
21382
What does "sudo apt-get update" do?
52190
How and when is old-releases.ubuntu.com updated?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
113379
Updating the repository isn't working
91491
How can I get "delta" packages to optimize apt-get upgrade downloads?
133752
How can I update Visual Studio Code on Ubuntu?
140771
Can't update Developer Tools on Mojave
5830
How to prevent updating of a specific package?
421
How do I update a Drupal distribution to a newer version?
12578
How do I upgrade to a newer version of Ubuntu?