Software Updater doesn't show packages Ubuntu 18.04.1 LTS
35160
Invisible software updates list in Software Updater
116937
Why apt can't find the source code of any package?
96810
Given a package name, how can I find out what will change if I install the package?
79163
Sources missing in /etc/apt/sources.list, how do I get them back?
31892
New "Ubuntu Software" not working (16.04)
115722
Apt sources.list problem , packages not found?
63200
Windows 8.1 update not showing
91491
How can I get "delta" packages to optimize apt-get upgrade downloads?
154248
How to see all packages in a package repository? Website or command line?
144507
No facility exists in Update Manager to upgrade to a new version, why?
10633
software updater failed to download repository information
30588
Unable to locate package
135393
Why does Ubuntu Software Center not show every package available?
154072
Ubuntu 17.10 doesn't show up in update-manager
5954
How to list all installed packages
5242
How to update software installed via .deb file
133
How can I fix a 404 Error when using a PPA or updating my package lists?