How to Fix Upgrading from Mojave to Catalina

By Catalina
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How to Fix Upgrading from Mojave to Catalina

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. Boot with -v keepsyms=1 debug=0x100 to identify the exact kernel panic.
  2. Validate your config.plist using ocvalidate.
  3. 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:

Hey Guys, got another question here.
So I'm successfully on Mojave using Clover and want to upgrade to Catalina through OC

I've gone through everything to make an OpenCore USB Bootloader though it just hangs on black screen After it puts me into Clover boot screen.
I select exit clover and it goes to the OC Boot Menu then freezes and or sometimes just shows a "_" up in the top left then stays as is.

Attached are some logs if it helps

Author: philman443

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