Fixing Bootloader Issues on Hackintosh with macOS Sonoma

Solution Guide:

1. Organize EFI Folder:

   • Ensure that the EFI partition on your system drive contains all the necessary files for booting macOS Sonoma. This includes the OC (OpenCore) bootloader files and the BOOT folder.

2. Verify Folder Structure:

   • Inside the EFI partition, create a folder named "EFI" if it does not already exist.
   • Place the OC and BOOT folders inside the EFI folder. The correct path should be: EFI/OC and EFI/BOOT.

3. Check BIOS/UEFI Settings:

   • Access your motherboard's BIOS/UEFI settings and verify the boot order. Ensure that the system drive with macOS Sonoma is set as the primary boot device.

4. Configure OpenCore Settings:

   • Open the config.plist file located in the OC folder within the EFI partition.
   • Navigate to the "Misc" section and set the "Boot" option to "PickerMode" or "Full" to enable the bootloader picker at startup.

5. Update Bootstrap:

   • Follow the instructions provided in the Dortania guide (https://dortania.github.io/OpenCore-Post-Install/multiboot/bootstrap.html#updating-bootstrap-in-0-6-6) to update the bootstrap in OpenCore 0.6.6 or later versions.

6. Disable Windows EFI Overwrite:

   • Modify the config.plist file to prevent Windows from overwriting the EFI entry for the motherboard boot drive order. This involves configuring specific settings in the OpenCore configuration.

7. Test Booting Without USB Drive:

   • After making the necessary changes, remove the USB drive containing the macOS Sonoma installer.
   • Reboot your system and check if you can boot into macOS Sonoma without the USB drive connected.

8. Troubleshooting:

   • If you encounter any errors or issues during the boot process, refer to the troubleshooting section of the Dortania guide for OpenCore (https://dortania.github.io/OpenCore-Install-Guide/troubleshooting/troubleshooting.html) for further assistance.

Conclusion: By following these steps, you should be able to fix bootloader issues on your Hackintosh system running macOS Sonoma and boot into macOS without the need for a USB drive. Remember to carefully configure the OpenCore settings and BIOS/UEFI settings to ensure smooth booting into macOS Sonoma.