The issue focused on connecting computers from remote computers using SSH / SSH VPN links When connecting computers via SSH VPN connections they usually install OS versions prior to Ubuntu 13.04 so there will be bugs associated with installing Ubuntu 13.04 version due to updating Ubuntu packages without updating apt repository When updating apt repositories packages installed via SSH VPN connections won't update apt repositories apt repositories fails with apt rebuild failing due to ssh VPN packages installation packages installed via SSH VPN connections aren't upgraded apt repositories fails with apt rebuild failing due to SSH VPN