Unable to upgrade Ubuntu 18.10 to ANY version
9901
How to upgrade from 18.10 to 19.10, using the command line?
135383
Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages
35146
Will apt-get dist-upgrade upgrade my system to newer version?
100494
Update Manager asking me to update kernel but apt-get upgrade does not?
94171
Why Does Software Updater Say No updates Available, but apt-get upgrade Shows updates available?
128471
How do I update from 9.0.10 to 9.1.0?
118978
Not all updates can be installed: partial upgrade
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
74763
Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution)
23096
How to remove obsolete packages after failed release upgrade via do-release-upgrade on Ubuntu?
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
127206
Python error when upgrading from 18.10 to 19.04
86777
Distribution upgrade problem "No new release found"
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
140371
Update Ubuntu 10.04
8526
Upgrading from Ubuntu 16.04 to 18.04 broke the system completely!
24165
Upgrade to version newer than repositories