Failing to upgrade Ubuntu or run updates from the command line, apt-get giving 404s
1520
How to install software or upgrade from an old unsupported release?
2564
apt-get cannot connect to Ubuntu archives
144507
No facility exists in Update Manager to upgrade to a new version, why?
35152
Dependency errors for python3 and many others when I run sudo apt-get upgrade
94793
How do you run update-grub?
35146
Will apt-get dist-upgrade upgrade my system to newer version?
157904
error 503: service unavailable when using apt-get update behind proxy
56150
Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
39732
How to fix apt-get install / update not working on my Kali Linux
54991
How can I install updates and shut down from the command line?
13744
sudo apt-get update failing - "could not open" list file due to "permission denied"
28650
`apt-get update` cannot find Ubuntu servers
80899
"no public key available" on apt-get update
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
121462
Fixing a broken packet system (apt-get)
123413
Will apt-get dist-upgrade upgrade my system to a newer version?
18622
How do I install a different Python version using apt-get?