I'm planning on replacing my hard drive in my Macbook and iMac and I want to install Lion on them. I made a Copy of lion on Recovery Disk Assistant on a USB Drive. But everyone says it's only Part of lion and not the whole thing. If I replace my hard drives and I use the Thumb drive will it work or not. Will I have to install Snow leopard first? Please don't tell me just to clone my hard drives. I want to start from scratch and I have all my music and videos backed up to my time capsule. Thank you.