[watmough]

So Elementary OS is one example of Linux that already runs very happily on my 2012 MacBook Air.

Surely most of the required support is there already?

[LeonM]

I wasn't talking about the Macbook Air, but rather the 12" Retina Macbook [0].

Also known as the A1534 Macbook8,1 (yes, Apple's naming is always confusing).

https://support.apple.com/kb/SP757?locale=en_US