change how grub access decive to work around usb stick hardware bug

[frederik.hofe]

I have this USB stick (SanDisk Ultra Fit, 32 GB version) that deadlocks 
when the kernel accesses it after the bios was doing something(?) with it.
So it works fine for most use cases except if I want to use it as boot 
device. (Already asked on the usb mailing list: 
http://marc.info/?t=142896890100003&r=1&w=2)

So far I only managed to boot arch on that stick. Im not sure what 
exactly the arch image uses to boot, maybe Syslinus?

I would like to know if there are different ways how grub can access the 
stick and how I would change that?