Hello,
This step is referenced in the article but it was never mentioned or completed in the video:
- Disable Secure Boot and enable external booting in Startup Security Utility by rebooting the Mac and holding Command-R to boot in to Recovery. When you see the macOS Utilities window, choose Utilities > Startup Security Utility from the menu bar.
Does disabling Secure Boot and enable external booting need to be completed or just the steps shown in the video?
Thanks!