Anyway to force xUbutnu to boot first?

[agnes]

So, say I have a USB drive with xUbuntu loaded onto it, I want to boot to it. Normally, you would have to select it from the boot options.

Is there anyway to make it a primary boot option over any other OS on the machine without touching a thing?

So, say I walk into a net cafe, shut down the machine, plug my usb in and wait for it to load.

Obviously the guys in the net cafe are going to be miffed but hypothetically.

Is there such a way?

 

[agnes]

Thought as much haha. No harm in asking eh?