An upgrade from 'eoan' to 'disco' is not supported with this tool
15687
How do I resume a release upgrade?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
118978
Not all updates can be installed: partial upgrade
47763
Lualatex (luaotfload) broke after upgrading to Mavericks
109277
Can't Add ppa:x2go/stable
36848
How do I safely install an older/newer version of Python?
35539
How do I install the latest version of node.js?
74990
Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
32987
Could not open file archive.ubuntu.com_ubuntu_dists_eoan-updates_restricted_cnf_Commands-amd64.xz
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?
18622
How do I install a different Python version using apt-get?
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
100917
How to upgrade Eclipse for Java EE Developers?
1833
14.04 Cleanly upgrade to ppa:ondrej/php from ppa:ondrej/php5-5.6
67481
How to revert a do-release-upgrade?
132933
Is there a tool to update my PPA sources.list entries after upgrading?
54811
Undefined control sequence. \luatexversion with animate package