Hi Mike, Thank you so much for your help,
I found out why Ch341a did not work. It is outputting 5 V, when I replaced that with 3.3 V from Raspberry pi, everything works. Raspberry pi is a good flashing tool. Then I have seabios working. I am total new to Seabios, when I put in a USB key and a SATA hard-drive, it always picks SATA hard-drive. When I press delete key, there is no option to move to USB key. I am not sure how to use seabios to boot with USB storage. Thanks, _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org