This tutorial for installing macOS 13 Ventura has been adapted for Proxmox from Kholia’s OSX-KVM project and Leoyzen’s OpenCore configuration for KVM. You can get the full sourcecode of my OpenCore release on my GitHub here.
Requirements
I’ll assume you already have Proxmox 7.2 installed. You also need a real Mac available in order to fetch the OSK key.
Ventura now requires that your CPU has support for AVX2, so for Intel your CPU would have to be at least as new as Haswell. However, I have added the CryptexFixup kext to work around this restriction and allow Ventura to be used even on CPUs that don’t have AVX2 support (and merely support SSE 4.2 and AVX1). Note that the AMD graphics card drivers won’t work in this situation, and other apps that assume AVX2 is present could break too! Please see the CryptexFixup readme for details.
Modern AMD CPUs also support AVX2 and should work with this guide.
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