[EFI Loader] Error 12 Fix in Boot Camp for Apple T2 Security Chip Macs (apple_set_os loader v0.5)
@ageekinthecity, great I can help, I’ll make a build that is far simpler than others. Also I have come across issues and solutions which no one has listed
@tyrant675, thanks for your help. Finally got it working with the steps above. If anyone want to try and create a "build" with the steps above, please feel free, my setup is as follows:
Does the 6800xt work natively in Big Sur?
@erik_tank, no! Still waiting for Apple to release an update with the new AMD drivers. Had my hopes up for todays' updates, but unfortunately wasn't at this time. But you can certainly use it on Windows. Just got Cyberpunk 2077 and believe it or not, it takes a toll on the new 6800XT. Because I'm using an ultra-wide monitor (3840x1080) I'm getting an average of 51fps. Although it might be Windows on Bootcamp + eGPU setup on Thunderbolt 3 is not the same as directly connected to the PCI slot.
@susurs, The modified bootx64.efi would always load up first. If there's no eGPU detected the EFI loader would start Windows with only iGPU. You can also hit the SKIP shortcut key [z] from what I recall.
In case anyone does not want to use Clover Configurator for mounting EFI to replace bootx64, here are few simple commands to do it manually:
To mount EFI partition enter the following in the terminal (without quotes):
“diskutil mount /dev/disk...” (replace “disk...” part with complete identifier of the EFI partition - in my case complete identifier is: disk0s1 , and probably it is the same for most of us)
(in case of error enter: “sudo -s” without quotes and repeat the mount command)
“diskutil unmount /dev/disk...”