After taking Black Macbook apart to replace the dvd player with an SSD, I realized drive was PATA instead of SATA. So put eve...
Replaced the optical with hdd, as well as replaced the hard drive with an ssd. Now I get the circle with a line through it. But, when I hold the option key down, it gives me both hard drives, PLUS, the thumb drive I have in the USB port with a Mountain Lion installer. It even shows the recovery disks, but gives me the circle with the line when I choose one. Any help is appreciated.