[coreboot] usbrom boot grub

[Jason Wang]

Hi all,
     I am glad to tell you that usbrom can boot grub from usb disk
correctly. It can not boot linux by error " Selected cylinder exceeds
maximum supported by bios".
I suppose that becase of the kernel are located in the second partition of
the disk. I will try to make a new usb linux. And try to boot that later.

BTW, Kevin , do you know the reason why the bios does not support larger
cylinder?