Quote:
Originally Posted by pwalker8
The problem is that you can't run a version of Mac OS on hardware that came out after a later version of Mac OS was released. High Sierra came out in Sept, 2017. Thus gen 4 mac mini's and later that came out in 2018 won't run Sierra. I can't install Sierra on my Macbook Pro, which came out in 2018.
I can boot my iMac in Sierra, but running from an external hard disk is somewhat slow. Running my iMac that way was my back up if the old mac mini went belly up. I prefer to run my iMac with the latest and greatest and I certainly don't have enough space on the internal hard drive to dual boot.
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In a VM you can!! You just can't natively boot it. You just need a Sierra install .DMG and parallels or whatever and away you go. You could even run Tiger in a VM on your 2018 MacBook Pro that way if you wanted, although it takes a bit more effort because it's not officially allowed by Apple's EULA like newer versions so Parallels and the like block it.