How to create a Mountain Lion bootable usb drive?
I have the mid 2012 MacBook Pro 13" non retina and I was wondering whereabouts do I go with creating a bootable usb drive of Mountain Lion. I'm currently downloading Mavericks from the Mac App Store and I just thought I should have ML as backup in case I encounter problems with Mavericks and therefore I can go back to ML.
Now ML already came with my computer when I bought it, so how would I go to copying ML to a bootable usb drive. I heard something I would have to download ML under purchases in order to proceeed. Is that true? If not, is there a better alternative? Thanks in advance.
MacBook Pro, OS X Mountain Lion (10.8.3)