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monoturbo

macrumors newbie
Original poster
Apr 23, 2021
15
0
Hi all,

I have a Mac Pro 5,1 with an RX 570 graphics card. There are three drives installed. The first has opencore that I set up in the spring. The second is a standard Mojave install. The third is a Windows 10 install. I installed the boot picker for opencore so that I can select between Mojave or Windows 10 upon boot.

Today I powered on the machine and tried to boot into Mojave. After selecting the drive in the boot picker, I see an Apple logo and a progress bar. After a few seconds that goes away and the screen goes black. The monitor then goes into power saving mode. I tried to boot into Windows 10 and that still works as it always has.

I removed the opencore drive and the Windows 10 drive from the Mac Pro, and the Mojave drive will not boot. The screen just stays black.

Next, I connected the Mojave SSD to my MacBook Air and was able to boot from it there. So I know the Mojave install is not corrupt. Is something possibly broken on my opencore install? Is there any way to recover or do I need to do everything all over again?
Thanks!
 
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