I have two installations of owncloud running. One is version 6.something, installed from the ubuntu repository. The other is version 7.something, upgraded from the version 6 ubuntu repository originally installed.
I came to work this morning to find out both had been "removed from ubuntu due to security issues".
Why had the installations been removed?
Why was the version not checked before removing them?
What can I do to prevent owncloud or other packages being removed when I'm not watching?
How can I tell apt-get that I still want to keep php5, mysql et al so that apt-get autoremove won't make my servers completely useless?