@unixb0y will do… once I get a chance to play around with it. I have a lot of external USB drives connected on a USB hub and the drive I installed Mojave on isn't booting. So I'm going to have to connect it directly to a built-in port instead.
@unixb0y It’s a MacBook Pro, but not changing any internal drives, they are all connected to USB via a USB hub, but I need to disconnect the hub (and all the other external HDDs) and use the drive on its own to test it ;-)