How to install Windows 8 preview from USB hard drive?

I have been really scratching my header over how to install Windows 8 dev preview from a USB hard drive. It is an iso file. There is a Microsoft program that will easily set up a USB flash drive to install from, but it won't work with a USB hard drive.

I've searched Google but cannot find an answer to this seemingly simple question. How do you install Windows from a USB hard drive? I've read that I can use disk management to 'mark partition as active' and then extract the contents of a mounted iso into that volume... but disk management won't let me mark the partition on my USB hard drive as active.

Any ideas?

Answer

Ok so you don't need to do everything from GUI. Here is a tutorial which works as a charm.