Want to live on the bleeding edge? I now have a tutorial for installing Mojave Developer Beta
This tutorial for installing macOS Sierra has been adapted for Proxmox 5 from Kholia’s GitHub project for installing into vanilla KVM. There is more documentation there which will help out with enabling extra features and diagnosing problems!
I’ll assume you already have Proxmox 5.1 installed. You also need a real Mac available in order to download High Sierra from the App Store and build the installation ISO. Your Proxmox host computer must have an Intel CPU at least as new as Penryn (I believe you would need a a custom Mac kernel in order to use an AMD CPU). Continue reading Installing macOS High Sierra on Proxmox 5