I have a freshly installed Ubuntu 9.10 server installed within a VirtualBox VM instance. From the VirtualBox menu bar, I selected Devices: Install Guest Additions...

Then performed the following commands:

> sudo apt-get install -y build-essential linux-headers-$(uname -r)
> sudo mount /dev/cdrom /mnt/
> sudo /mnt/VBoxLinuxAdditions-amd64.run

After some successful looking results, the following error is displayed:

Installing the Window System drivers ...fail!
(Could not find the X.Org or XFree86 Window System.)

After restarting, I was looking forward to some UI integration with my host desktop (resize window, not needing to press right-Ctrl to escape the client window, and having copy and paste functionality.

Is it possible to install the Guest Additions without the X Window overhead (I plan to only use for shell commands)? If additional packages are required, which ones?