How to Fix macOS Big Sur installer closes instantly (OpenCore 0.6.4)
Graphics issues usually stem from an unsupported GPU, missing acceleration patches, or incorrect boot arguments.
Quick Fix Steps
- Verify GPU support: Check if your GPU is natively supported via WhateverGreen docs.
- Update kexts: Ensure Lilu and WhateverGreen are current.
- Check boot arguments: Add
-v keepsyms=1 debug=0x100for debugging, oragdpmod=pikerafor AMD. - Test Metal: About This Mac > System Report > Graphics.
Verification
- Graphics acceleration is smooth.
- Metal is reported in System Information.
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Original Question: "macOS Big Sur installer closes instantly (OpenCore 0.6.4)"
What happened?
Since last year I was using macOS Catalina with Clover using this guide https://www.insanelymac.com/forum/topic/340936-audiogods-aorus-z390-master-patched-dsdt-efi-for-catalina-mini-guide-and-discussion/
I wanted to update to macOS Big Sur using same guide because now is available for OpenCore 0.6.4.
But when I try to install macOS, the installer crash. I tried everything since last week and I have no of what is happening.
Here is a video of what happens https://imgur.com/a/BipvC1u
Specs:
Motherboard - Aorus Z390 Master
CPU - Intel Core i9-9900k 5 GHz (OC)
GPU - Sapphire NITRO+ Radeon RX 5700 XT Special Edition 8 GB GDDR6
Cooler - Corsair Hydro Series H150i PRO
RAM - Corsair Vengeance RGB PRO DDR4 3200 MHz C16 (4x16GB)
PSU - Corsair HX1200i
SSD - Samsung 970 PRO 1 TB
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