I have a 2010 MBP which I believe will not boot from usb. I would like to do a fresh install of mavericks. What is my best option here? I'm thinking it may be to go buy a dual layer dvd somewhere and burn the mavericks image file to that. Or was sort of considering doing an upgrade install from 10.8 then doing an iCloud remote wipe, but not sure if that leaves me with a blank OS or no OS at all.