Just to clarify - nothing was damaged as far as Grub. If I Switch both HDs ON then it boots to Grub, I choose an OS, and it boots fine.
My goal is to: (before the computer is turned on) Choose the current OS by switching that HD ON and leaving the other off. Then have the computer boot to the OS that is turned ON.
Are there settings in "Grub Customizer" that might allow this? Or maybe a fresh install of Linux with the other HD turned off?
My goal is to: (before the computer is turned on) Choose the current OS by switching that HD ON and leaving the other off. Then have the computer boot to the OS that is turned ON.
Are there settings in "Grub Customizer" that might allow this? Or maybe a fresh install of Linux with the other HD turned off?