Software Updater can't check for updates
339
How to resolve "Failed to download repository information"?
148872
I can't select updates in Update Manager
154072
Ubuntu 17.10 doesn't show up in update-manager
1771
How to get rid of 'security updates available' warnings?
96767
How to find the number of packages needing update from the command line?
2236
Why don't the Ubuntu repositories have the latest versions of software?
83216
apt get update missing release file
41054
How can I check the available version of a package in the repositories?
90937
apt-get update errors
115187
How do I avoid checking for updates for a specific module?
45993
How to keep up with packages and know which ones are obsolete?
113379
Updating the repository isn't working
126740
Software & Updates crashes and will not open
46424
Cannot update software center repositories
30754
Cannot update: "No available releases found"
145237
List available updates but do not install them
32922
cannot update unless on one network