i bricked my goflex home (again) trying to replace arch with debian. i finally got it booting from the sata running arch (just like it was before i started messing with it) but I noticed the mac address changed. it's probably from me trying
http://goflex.scottn.us/picocom-debug.tar.gz
http://goflex.scottn.us/uboot.uart
picocom -b 115200 /dev/ttyUSB0
and then sending the uboot.art file. i think that might have changed the mac address. it took a lot of experimentation to get it back to working order. so, if having a different mac address isn't a problem, i am not going to mess with it