So someone already asked this question (How to burn iso image with Windows 8 Consumer Preview to USB memory stick on Mac OS X) but was happy with a non-answer. They asked how to install from Mac, someone suggested a Windows app, and they were happy with that. I cannot run a Windows app from my Mac so I would like an actual answer. Since I cannot comment on that answer, I thought I would make my own question.
If you have the ISO for the Windows 8 Consumer Preview, and you use the disk utility to create a USB from the ISO, the USB will not be bootable (for some reason). I have tried a few other utilities and none seem to work. Everyone is suggesting to do this on Windows, I do not have Windows. There must be a way to do this from a Mac.
Best Answer
Just follow these steps: How to Make a Bootable USB on a Mac
And when you are done with the bootable flash, just extract all the content of the WIN8 iso to your bootable flash drive. It will make you have a bootable flash drive with Windows 8 installeable from it. Boot your machine with this pen drive and install Windows 8.