I am working to increase storage by adding a new HDD. I purchased a WD Red Plus 4TB.
When I boot with the hard drive connected, Unraid fails to boot, showing "No valid boot device is connected, press any key to restart." The keyboard does not work at that time.
Unraid boots perfectly fine if I remove the new HDD.
The HDD shows in BIOS.
I can boot into Windows, which allows me to interact with the HDD on the same machine.
Is there any known reason the HDD would be causing Unraid to not boot only when a hard drive is connected?