On 01/27/2011 07:47 AM, Eric W. Biederman wrote: >> >> Yes - but at least a long time ago there used to be modi of reboot when the BIOS did >> not do this. Whether that's possible at all with modern BIOSen is a >> big question ... > > As I recall that was how you went from 32bit mode to 16bit real mode. > The issue is that mode never reset the hardware it simply changed the > cpu mode. > Quite correct. It doesn't just bypass the memory wipe, it bypasses the entire POST. -hpa