Looks like the hdd was the issue, I've replaced it and installed 3.0-rc7 with no changes.
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/794642 Title: [Dell optiplex 390][SFF] Dvd drive not recognized by system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/794642/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs