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?
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Jason Wang
Peking University