just tried to install openBOR, following your instruction.
Unfortunatly it didn`t worked.
After rebooting the system, i only see one more system "MS Dos" but no openBor.
I had to do some more research and found a solution.
Step 1 change to:
Insert the following code to add the openBor-System:
Upload the new file to /userdata/system/configs/emulationstation/es_system.cfg
But my Xbox360-Controller dosn`t work.