I am kind of helpless. I downloaded the posbox image from here: https://nightly.odoo.com/trunk/posbox/
Then flashed my 30GB SD Card with the image. Worked so far.
But how the hell can I install this OS on my raspberry pi? When I insert the SD card into the Raspi, nothing happens. No boot (what I would expect).
How does that work? there is almost no documentation!