I recently installed Ubuntu Server 12.04 LTS in a VirtualBox machine, and manually installed the Guest Additions successfully. However, I found I couldn't use shared clipboard with the operating system. Being a server machine, I don't plan on installing X11 and a window manager.
I noticed that during the Guest Additions installation, the graphics drivers were obviously not installed due to the lack of X11. This terminated the installation; could this mean that the shared clipboard drivers might have been installed after the graphics drivers, if the installation had continued?
Also, I know I can just SSH into the server and use my clipboard there, but that's slightly inconvenient as I already have the actual machine open in a window on the same PC. I just want to know if this is possible.