When it’s time to install the Windows 8 Preview Release in Boot Camp, make like you’re installing Windows 7.
Remember to make note of the activation code. Since we’ve already determined that you’re using a recent Mac, you’ll want the 64-bit release. So, assuming you have a relatively recent Mac, the first thing you’ll need to install Windows 8 Preview Release via Boot Camp is, not surprisingly, a copy of Windows 8 Preview Release, which Microsoft is providing for download at the cost of only a valid email address and your immortal soul. It is possible to extract the install into a new disk image with a normal boot sector, but it’s complicated, and you’d need an existing Windows install to attempt it. I was actually able to install an earlier preview release on a 2006 Core Solo Mac mini, but not the latest release, which is unfortunate. You might want to run Windows on an older machine, as Windows 8 actually has much less stringent hardware requirements than Mac OS X Lion, but the problem is that only Macs since about 2008 have firmware that can boot from disks with the modified boot sectors Microsoft started using in Vista.
