if you want to boot from an external hard drive.
in the bios, intergrated perephrials? i think tha's where it is, there is a first boot, second boot, etc
set it to external or similar.
[110.7896] Getting up from chair
[112.8798] Walking to fridge
[118.5234] Opening Fridge
[119.1439] CntdwnToExtn panic - no beer: Fridge empty!