Nothing it just gets stuck at initializing amdfbpudrb (or something similar):.

On Fri, Dec 7, 2018 at 7:46 AM Ricardo Wurmus <rekado@elephly.net> wrote:

Hi Ryan,

> I used sudo dd if=guixsd-install-0.16.0.x86_64-linux.iso of=/dev/sdb to
> make the usb work in uefi mode

What errors do you get (if any)?

--
Ricardo