Gregory Nowak wrote: > Virtualbox doesn't strictly require X, since it can be used using the > vboxheadless interface. True, but isn't the headless interface only useful for controlling Virtual Box? As far as I can tell, you need X if you want output from the console of the emulated system. A serial console is probably still an option. Bochs can direct serial I/O to a pseudo-terminal, and I've used the socat utility to service the host end of the emulated serial line. In other words, I don't need serial hardware in order to use the serial console of a virtual system. I bet Virtual Box will allow something similar. Regarding User-Mode Linux, there are definitely kernel projects for which it isn't suitable. -- Chris