The above appears to work for 13 beta, or at least from memory that’s what I did. In 12 beta it doesn’t work (I get something like Preboot Failed – Error 126 or something like that). In order to get it to work I had to put those lines in via the web interface, i.e. by finding a laptop with compatible NIC, booting from that, changing things from the web interface, and sticking the USB stick with Zeroshell on it back into the original Eee PC. A bit of a pain, lucky I had the other laptop to do it from.