How to Fix Two stage GUI boot?
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
- Boot with
-v keepsyms=1 debug=0x100to identify the exact kernel panic. - Validate your config.plist using ocvalidate.
- Ensure your EFI matches the Dortania guide specifications for your CPU generation.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
Can anyone shed some light on what I'm seeing, explanation below.
After I press the power on button.
I see a high resolution, looks like it's 3840x2160 (4K) Apple logo and a progress bar
Progress bar gets to about 1/3 of the way through the boot process then a black screen
Then a much larger Apple logo and progress bar.
Any idea why the two stage GUI boot and if it's possible see only a single before the login prompt ?
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