Upgrading a non-LTS Ubuntu installation after EOL
Posted by Admin • Thursday, September 1. 2022 • Category: LinuxIf you don't upgrade a non-LTS release (eg: 21.10) to a supported version before End-Of-Life, you will be dealing with a rather awkward user experience. Here is what happens:
$ do-release-upgrade
Please install all available updates for your release before upgrading.
Yet if you atempt to install updates, that fails:
$ apt dist-upgrade -y
Err:5 http://archive.ubuntu.com/ubuntu impish Release
404 Not Found [IP: 2001:67c:1562::18 80]...
Essentially, apt cache knows about some pending updates, but the actual packages are not longer available. You can't update them, so you can't upgrade your OS.
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