On my 32GB model, Grub assigns the USB stick as hd0, the read-only recovery flash chip as hd1, and the main internal flash as hd2. Patchy wifi on 2 Asus devices - [Solved] - Wireless Networking Fortunately, grub has good auto-completion features, so you can hit twice as you type, and grub will list possible completions for you — just keep trying until you see the various vmlinuz kernels. It will be your root partition. To complete the line, press[…]