Dell Optiplex 9020, Clover configuration

[sasha2021]

I updated the new computer's BIOS to A25, and no luck with boot in the Mac OS. Again, Clover boots as normal, giving me the Windows OS option and the Mac OS option. But the Mac drive freezes.

Thanks again for trying.

 

[trs96]

I updated the new computer's BIOS to A25, and no luck with boot in the Mac OS. Again, Clover boots as normal, giving me the Windows OS option and the Mac OS option. But the Mac drive freezes.

What I would do is a clean install of Sierra (to a clean SSD) on this system, use UEFI instead of Legacy, then when that is working connect up your old Sierra install and move your data and programs over to the new install. It's worth a try if you can't boot the original Sierra drive.

 

[sasha2021]

I will have a go. Thank you.