Hi Michael,

> Just a guess, but verify that PReP-Boot Mode is enabled within PPCBUG 
> (via the ENV command).  The "no residual data" looks suspicious in this 
> regard.
I got OpenFirmware instead of PPCBUG. There are two variables that could
be what you mean: "pboot-probe" and "auto-pboot" both which i have set
"true". 

-simon