Tri-booting Kali, Windows, OSX on a Mac
I have a Macbook Pro Retina and would like to book OSX (Mountain Lion), Windows 7, and Kali Linux using rEFIt.
I have successfully managed to install OSX and Windows.
I have tried give or take 10 times now in install Kali testing different methods and possibilities but I can not install GRUB on to a Kali Partition which is essentially what has to be done in order to access it through rEFIt.
Doing this with systems such as Ubuntu is fairly self explanatory as there is an "Advanced Options" feature during install which allows you to easily specify GRUB install location.
Kali is not quite as easy it starts to install grub then asks for a location (e.g. dev/sda1, dev/sda2, dev/sdc5,)
None of which it will accept it gives a "fatal error" and asks me to try again or edit some other aspect of the install.
Lilo (bootloader) is much the same as an alternative and I have had no success with this either.
I do not mind working harder on this I would just like to know whether it is possible.
I have done tasks similar to this before and have never as of yet actively had to ask for help so there is either something incredibly simple I am missing (which would be fantastic) or this may be more of a task than i initially predicted.
Any help would be much appreciated.
Please no negative comments part of computing is progress and while I realise this isn't a necessary endeavour or perhaps even a worth while one I would like to see if it is possible and if I am able to enjoy the benefits of an offensive security linux system while running on a mac :).