I currently have a 2010 15" MacBook Pro installed with OS X Lion and wish to downgrade it to Snow Leopard.
However when trying to boot into the Snow Leopard installer for a clean install, it hangs at the grey apple screen (and no spinner appears).
The DVD drive in the MacBook is faulty so I imaged the Snow Leopard DVD onto a USB drive using Disk Utility, which boots but hangs.
I have tried going into the Recovery HD and wiping the HD and trying again but this has not helped.
Is there any other option to installing Snow Leopard on this MacBook which previously had Lion? Thank You.
- Reset PRAM and NVRAM
- Wiped Internal Hard Drive