![]() ![]() To resolve this, simply uninstall OpenCore and reset NVRAM (opens new window). However this installs NVRAM variables that will confuse your Mac if not running with OpenCore. With OpenCore Legacy Patcher, we rely on Apple Secure Boot to ensure OS updates work correctly and reliably with Big Sur. Reminder that once this is done, you'll need to select OpenCore in the boot picker again for your hardware to remember this entry and auto boot from then on. However, if it doesn't show the prompt, you'll need to either manually transfer (opens new window) OpenCore to the internal drive's EFI or Build and Install again and select your internal drive. To resolve this, create a new installer using a different USB drive (preferably of a different model.) # Cannot boot macOS without the USBīy default, the OpenCore Patcher won't install OpenCore onto the internal drive itself during installs.Īfter installing macOS, OpenCore Legacy Patcher should automatically prompt you to install OpenCore onto the internal drive. However, if the □ Symbol only appears after the boot process has already started (the bootscreen appears/verbose boot starts), it could mean that your USB drive has failed to pass macOS' integrity checks. Once you've booted OpenCore at least once, your hardware should now auto-boot it until either an NVRAM reset occurs, or you remove the drive with OpenCore installed. Reminder that the option will be called EFI Boot. To resolve this, ensure you're booting OpenCore before the macOS installer in the boot picker. This means macOS has detected an SMBIOS it does not support. # Stuck on This version of Mac OS X is not supported on this platform or (□) Prohibited Symbol Applications/OpenCore-Patcher.app/Contents/MacOS/OpenCore-Patcher icon will bounce in the Dock), try launching OCLP via Terminal by typing the following command, make sure you've moved the app to /Applications before this.
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