Package: apache2-mpm-prefork Version: 2.0.52-3 Hi. If you're doing a 'apt-get update' && 'apt-get upgrade' you 'll be able to get the following error while installing/upgrading: The upgrade-process will hang until you're terminating it manually - at package apache2-mpm-prefork. Even while manually starting the server you won't be able to get it working or stuff. Greetings, Sandra