Sounds like you’re trying to use a raspberry pi image on a BBB? I’ve not tried that myself but I have installed the actual BBB image from http://www.raysfiles.com/osbo/osbo2.zip It works. It has the old software though, so as David mentioned you’ll need to update it. I’ve also installed the latest BBB Ubuntu image following the directions here http://elinux.org/BeagleBoardUbuntu I then had to install the build-essentials package before I could install the latest version of the OpenSprinkler unified firmware. However that also worked.