So i have formatted the sd card and followed all the steps, it works. Now its not doing anything when loading from CM10 from SD, the screen is on but it is all black. I'll just leave it on and see what happens tomorrow. edit: Still on after 15 minutes.
Note i am using one of those cheap centon 8gb microsd card .
Sent from my Nook HD+ running CM10.1 on emmc.