I have pretty much completed getting OpenCore to work installing new OS however I have it installed on an SSD that is inside a USB enclosure while my current drive with OC EFI is the internal HDD Im trying to swap (changed to EFI boot before GPU upgrade, BootPicker was accessible before GPU upgrade), atm holding Option while it may open the BootPicker my screen remains black due to a GPU upgrade which doesnt get fixed if OC isnt booted to (I still get the OC BootPicker but not the built in BP), how can I get the iMac to boot off the EFI on the new SSD before I physically install it? Should I mount the EFI partition on the new SSD and select it with Disk Utility?
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