does this minera run on top of a rasp os? slightly confused on that..
it depends. You can have a Raspian image running, then install Minera into it 'manually'
or DL the minera img, and poof, its like magic. running on its own.
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reread the question...
if your asking if that minera img is running on rasbian, that part i dont know. its likely.
How about... whats your need? ie: why do you want to know that part. maybe it'll show how to answer better..
or.. get past the first part , and the next answer will tell you more!

hope some of my random babble helps.
g
Poof like magic...
so that was fun..
lost an older power supply.
Clark Griswold raspberry pi moment there..
but shes holding at 69 dude.
to this Minera..
how can i fine tune my config..