How to Fix Strange behaviour on System Reboot/Power Off

How to Fix Strange behaviour on System Reboot/Power Off

This is a comprehensive guide to resolve the issue described in the post. Ensure you follow all steps carefully.

1. Prerequisites

• Hardware compatibility: Verify your exact Mac or PC model, CPU, GPU, and Wi-Fi/Bluetooth chipset.
• Required tools: Have OpenCore, OCLP, ProperTree, and a USB installer ready.

2. Compatibility Snapshot

• Check if your hardware is fully supported by the target macOS version. OCLP supports many models, but some have limitations.

3. Installation Preparation

1. Configure your BIOS/UEFI settings appropriately.
2. Create a USB installer matching your target macOS.

4. EFI and config.plist Review

1. Review your EFI folder layout: BOOT, OC/ACPI, OC/Drivers, OC/Kexts, OC/Tools.
2. Ensure essential kexts like Lilu, VirtualSMC, and WhateverGreen are present.

5. Post-Installation

1. Run OCLP Post-Install Root Patch if you are on an unsupported Mac.
2. Check graphics acceleration, Wi-Fi, and Bluetooth.

6. Troubleshooting

Reported issue

1. For this specific issue, verify your kexts and patches are up to date.
2. Check system logs and use verbose mode to identify errors.

Common Hackintosh/OCLP checks

• Stuck at Apple logo: Check verbose logs.
• No graphics acceleration: Verify Metal support.

7. Dual Boot and Advanced Configuration

• If dual booting, use separate disks when possible to avoid EFI overwrites.

8. Verification, Maintenance and Rollback

• Verify the fix worked and keep dated EFI archives.
• Have a rollback plan using Time Machine or a previous EFI.

9. References and Glossary

• OpenCore, OCLP, kexts.