The ISO should get saved to your desktop. Now run this script in order to create HighSierra.iso from the installer. If you received the 16MB version, follow the instructions here to get the full 5GB version instead. Some people will end up with a 16MB installer, and some will receive the full 5GB installer (nobody knows why yet). On a Mac machine, download the macOS High Sierra installer from the App Store (this will download it into your Applications folder).Ĭheck the size of the completed download. 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). You also need a real Mac available in order to download High Sierra from the App Store and build the installation ISO. I’ll assume you already have Proxmox 5.0 installed. There is more documentation there which will help out with enabling extra features and diagnosing problems! Requirements This tutorial for installing macOS Sierra has been adapted for Proxmox 5.0 (not any later version like 5.1!) from Kholia’s GitHub project for installing into vanilla KVM. Are you running Proxmox 5.1 or later? Use my current instructions here instead, this guide is only for 5.0.