If one of the build steps later on this guide fails, it'll tell you what's missing so you can install it at that point. To be honest I already had most of these installed, so I am probably going to miss one or two in this list. We'll be building a few tools from source, so we'll need build tools installed for that. In my case I already had Python installed but I needed to install an extra package called python-is-python2 to get certain tools to work, but you might also want to make sure python2 is actually installed. We'll be using a few tools to fetch and extract the installer files needed right from your host machine. You do not need a physical Mac to download anything necessary to create this VM.

As mentioned before, I'm focussing this guide on running Ubuntu 20.04 as the host OS. In this guide I'll assume you have already set up your host machine, including having set up QEMU, virt-manager, etc. Please check the relevant repositories for up-to-date information on this. The fetch-macOS script might need updating for future beta releases and the eventual full release. As of this writing, Big Sur 11.0.1 Release Candidate 2 (Beta 3) was the recent-most beta release. In this article I'll focus on steps and commands that are tailored towards Ubuntu 20.04, but I'm sure you'll be able to tweak things a bit to tailor towards whatever flavor you're running to get things to work similarly. Today I'd like to walk you through how to get Big Sur installed and up and running in a virtual machine on your Ubuntu or similar host machine.

Qemu mac os x