I've having some trouble updating OpenWRT on my BB from the factory
firmware to the OpenWRT version at  git://github.com/bifferos/bb.git.
I am looking to connect an Arduino to my BB via USB and need some
additional kernel modules (kmod-usb-serial and kmod-usb-serial-ftdi).
I have downloaded the bb.git tree and used menu config to add in these
modules and can run 'make' successfully to give a new firmware.

After the make I can load the new firmware in qemu fine with 'make
run' but when I come to upload it to the board with

python bb_eth_upload8.py eth0 00:b3:f6:00:8d:87 openwrt-rdc-jffs2-64k-
bifferboard.img

It writes the blocks but then does not request a DHCP address at all.
As I have no serial cable I cannot see what is going on but after
talking on IRC I am told that I need to configure the bootloader
Kernel cmndline variable in order to boot my new image.

I have been following https://sites.google.com/site/bifferboard/Home/bootloader/bb_eth_setc...
in an attempt to do this but would like confirmation on what values i
should be using and the correct cmndline variable for openWRT on my
dual USB BB as it does not seem to work.

Any help would be greatly appreciated.

Cheers

James