04-30-2025, 06:02 PM
Robert M wrote:
Black,
The preinstalled OS on the 2014 Mac Mini was macOS 10.14 Mojave. I'm not sure it'll boot/run off a drive that has macOS 10.13 High Sierra. Since the 2014 models shipped with Mojave as their original OS, I'd be inclined to use it with a Mojave boot drive. This ensures full compatibility from the start.
If I was in your position, I'd clone your existing configuration to a different external SSD. Boot off it on the 2012 machine. Upgrade it to Mojave. Confirm all work well. Then move it to the 2014 machine as its boot drive. The 2014 machine should have no trouble booting off it.
Robert
Scared me for a minute. I did research this thoroughly; all the info I can find is that it shipped with 10.10 Yosemite. Mojave was released concurrent to the 2018 Mini and the discontinuation of the 2014.