how to upgrade ubuntu 16.04 to ubuntu 18.04? (preventing it from upgrading to 20.04)
211
Can I skip over releases when upgrading?
31506
How do I update Ubuntu manually?
19288
Update manager doesn't offer an upgrade to the new release
74990
Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
72152
Upgrading 16.04 to 16.04.1
80233
Upgrade to 20.04 from 19.10 isn't available
151605
upgrading from 15.10 to 16.04 apt not installed
13970
Why am I not getting the Ubuntu 18.04 upgrade?
63232
How to update kernel to the latest mainline version without any Distro-upgrade?
111573
What's the best way to re-enable PPAs/repos after an upgrade?
110148
Why does `do-release-upgrade` skip a version?
109539
How can I perform an offline upgrade using Ubiquity on the installation disc?
107548
Where can I download Ubuntu 16.04?
69200
How do I reinstall Ubuntu Software in Ubuntu 20.04 LTS version?
63278
Update Linux Subsystem on Windows (Ubuntu) to 16.04
14631
Can someone clarify Ubuntu (Debian) dist-upgrade for me?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?