I'd like to be able to boot to a command prompt from my usb key. For bios updates. My motherboard has this option as well. For some reason I have searched hi and low and cannot find an easy way to do ...

I'm not always next to the cabinet which houses my Xserves and other gear, but use Screen Sharing quite a lot on my local network and TeamViewver when I'm further afield for access. No USB device I've ...