Apparently GAW Miners says it works. I can test loading it onto my Raspberry Pi. I personally don't have an Innosilicon A2 miner, but was helping out a fellow miner getting his miners up and running... But based on that link I provided a few posts ago, that it what GAW Miners had e-mailed us directly in regards to instructions for loading the Minera image onto the Rasp Pi's of the A2's.

Give it a try.