On 04/16/2018 04:55 PM, Nico Kadel-Garcia wrote:
> Did you copy directly to the first block of the USB device? For
> example, for a device reported at /dev/sda:
>
> dd if=dvdfile.iso of=/dev/sda
I don't remember.
Maybe I copied into /dev/sda1

Does it make some difference?
-- 
Elio Fabri