Would this work?

[bob92]

Ok, so I want to get Snow Leopard onto my OSx86 (currently 10.5.7 Leopard). I have one external hard drive (160gb) that can't be boot into. This is what I am thinking:

 

1. Reformat my main drive ( 3 oses Vista,7, ox86 leopard) as a GUID/ GPT drive.

2. Install Leopard (iAtkos 10.5.7) again.

3. Boot into leopard, run the snow leopard installer ( with modified files)

4. Install Snow leopard in another partition on drive.

5. Be happy with snow leopard, delete partition of Leopard

6. Boot into bios, put in Win7 x64 install disk and install Win 7 on another partition.

7. Restore Windows files

 

Would this work? Or do I have a logical flaw? I really sucks that my external hard drive can boot