I have just bought a new POSBox from Odoo and I am having a hard time setting it up

First of all, does this work right out of the box or I need to setup an image to raspberry pi?

Second, does openerp 7 support POSBox? This was intentionally bought in order to use it on our OpenERP 7

I did download and install Odoo 10 as a test bench to configure and test the POSBox

Third, I cant seem to figure out why the POSBox wont set a static ip even after configuring /etc/network/interfaces to my need. On every reboot it would lose all the configurations in the interfaces file and assign a random ip to itself