We have an Ubuntu 12.04 LTS machines that is giving errors when I try to run updates.
Specifically, I am getting a load of errors like this:
W: Failed to fetch http://packages.medibuntu.org/dists/precise/non-free/i18n/Translation-en Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
I tried to ping packages.medibuntu.org, and it returns:
ping: unknown host packages.medibuntu.org
It therefore seems to me that sometime in the past, packages have been installed from there, but it has 'gone away'.
Questions:
Is that diagnosis correct?
If so, how do I identify and 'fix' those packages? Do I have to carefully go through the whole output from 'apt-get upgrade' and uninstall each one? Hope not, but if that's what's required, then okay.