I managed a seamless installation, but when trying to boot i got an access denied symbol. I then rebooted with -v to check what was going wrong and this is what i got.

Code:

extension "com.apple.driver.itunesphonedriver" has no explicit kernel dependancy; using version 6.0
Still waiting for root device
(Still waiting for root device repeating every minute)

I followed these instructions to the letter except for the last bit which i assumed was supposed to be done when first booting into it after installation. is this my problem? if it is how can i fix it?