> And some of the BIOSes of old PCs are not able to boot from USB... Indeed, tho I suspect those machines are 20 years old or more (at least, all my machines that are <20 years old support booting from a USB key drive, while of the two older machines I have (both 21 years old), one of them doesn't support booting from a USB key (tho it supposedly can boot from USB floppy)).
Stefan
