Ubuntu live USB drive not recognized by mac
Solution 1:
The Ubuntu guide for this says it depends very much on what generation Macbook you have. You can find the version by going to Apple Menu->About the Mac->More Info and looking at the Model Identifier
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According to the guide, any Macbook Pro beyond Generation 6 won't run because of "an unsupported chipset". But else, the guide above should help. It also says that you'll need to install a bootloader called rEFit and, yes, Boot Camp.
Not being a Mac user, I can't tell you much more, but if it won't boot it's either because your MacBook is too new or you didn't install rEFIt.