How to Fix Catalina - administrator is creating non ejectable disk

How to Fix Catalina - administrator is creating non ejectable disk

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

• Confirm your hardware specifications (CPU, GPU, Motherboard).
• Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

1. Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
2. Ensure Metal acceleration is fully supported for your macOS version.
3. Update Lilu and WhateverGreen to the latest versions.

Verification

• Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

After the Catalina installation was nearly finished the system rebooted a short time before the status bar below the apple logo ended. Since then I stuck with every try afterwards already at "administrator is creating non ejectable disk" - see screenshot.
Whatever I try in the EFI folder the result is now the same. Any idea how to get out of this?


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Author: steverayxx