Hello, I've been a guest on these forums for quite some time now and I've never really seen the need to register till now, so hopefully the thriving community can help me I'll give you a quick brief, I'm on a 2010 MBP 15' i7 with an optibay, 500GB WD drive and a 240GB Vertex 3. I'm using the MaxUpgrades Optibay with there USB powered superdrive enclosure. Here's my issue; http://yfrog.com/05z5gz Basically, when I try to boot from a windows/linux disc to install another OS on the WD drive I just get that, which I have found out means root was not found? I'm quite desperate for Win & Linux partitions due to the fact that I have to use them for certain uni projects which don't have software for OSX. Your help would be greatly appreciated, thanks. Lewis.