Headless Cube

[John Weir]

I see there has already been a number of headless discussions going on 
here.  But none of them answered my problem, or at least I was unable 
to extract an answer from them.

I have a Cube which I have been running as a headless OS X server, 
headless in the sense of no graphics cards, no monitor.

The graphic card i have produces a lot of heat and the machine is on 
24/7.  no need for it.

OS X booted and ran just fine like this, but I have decided to run 
Linux instead.

Linux installed fine (with a graphics card) and is all setup.  But 
unplug the graphic card and linux won't boot.

I am guessing linux is looking for the card?  But I don't know.

Any advice or pointers will be much appreciated.

- john