Based on what?

Is mineos based on debian or ubuntu or what?

MineOS is a node.js script running on java, and able to run on most *nix OS’s.

The MienOS ISO’s have Turnkey linux, whick again is more or less a stripped down Debian (I think it was)…

I’m assuming you mean MineOS Turnkey, which is based of Turnkey Linux (TKL)–a Debian spinoff.

The scripts, on the other hand, are platform-agnostic: it’ll run on Linux, BSD, etc.