'Hackboot 1' is for starting the Mountain Lion installer, while 'Hackboot' 2 is for starting Mountain Lion itself. There are three different versions of Hackboot we'll need to use two of them in this guide. To help Mountain Lion start, you'll need to use Olarila's Hackboot CD. Hackboot 1 / Hackboot 2: Even though it's called a 'bootable DVD', the Olarila version of OS X Mountain Lion still can't boot in Virtualbox by itself.In the past, we've used the iAtkos distro for this, but iAtkos hasn't updated for Mountain Lion yet, so I used the 'OS X 10.8 Mountain Lion bootable DVD for Intel PCs', by Olarila. I won't go into details, but you can download these copies from about any bittorrent website by using a bittorrent client (it's about 4.5 GB in size). Instead, you'll have to rely on pirated 'bootable DVD' copies of Mountain Lion, also known as 'distros'.

Mountain Lion bootable DVD : Unfortunately, the standard method for installing OS X Mountain Lion on PCs (which uses a paid copy of the Mountain Lion installer) doesn't work with Virtualbox.Virtualbox : This virtualization suite is free, and though it doesn't offer official support for Mac OS X, it works well enough.

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