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Big Sur open core boot problem. black screen


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hey guys,

im stuck on an issue with Big Sur, have googled and messed around with it but i cant figure it out.

9600k/msi h370 pro carbon/bcm4360cd/Nvidia GT730/OpenCore 6.5

it works fine - Olarila image install. it's all good

but i carbon copied a Big Sur imac with all apps and settings to a 500gb Samsung Evo and cant get this to boot. same EFI that boots a fresh install just fine.

Serial port is disabled in BIOS as few people suggest that is the issue.

the carbon copy disk just boots to black screen, vnc to it also black screen. mouse pointer moves, keyboard responds only with black flashing

could use some help please :)

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