Install OS X 10.10 Yosemite in VirtualBox
Due to the high usage of this guide and the lack of comfort in Gist's commenting area, I decided to make a blog post out of this which you can find here:
http://blog.frd.mn/install-os-x-10-10-yosemite-in-virtualbox/
I have a MacBook Pro (Retina, 15-inch, Late 2013), and in order to solve the "Missing Bluetooth Controller Transport" thing I had to execute the following command in terminal:
VBoxManage modifyvm "VM Name" –cpuidset 00000001 000306a9 00020800 80000201 178bfbff
[1] http://www.jacobtomlinson.co.uk/2014/06/07/how-to-install-os-x-yosemite-developer-preview-in-virtualbox/