Tuesday, January 5, 2021

Building XNU for macOS Big Sur 11.0.1 (Intel)

 The macOS Big Sur 11.0.1 kernel (XNU) source has been released here: source tarball.

A lot of things have changed in Big Sur, and the installation and running of a custom kernel is significantly different from previous OS releases. This post covers building a kernel for x86_64 (Intel) platforms. It is not currently possible to build open source XNU for Apple Silicon Macs.
Building XNU requires some patience, and some open source dependencies which are not pre-installed. This post walks through all the steps necessary to build the open source version of XNU and boot it on supported Apple Intel hardware.


Wednesday, September 23, 2020

Building XNU for macOS Catalina 10.15.x

 The macOS Catalina 10.15 kernel (XNU) source has been released here: source tarball.

It has been a while since I've updated this blog, so this post will cover building XNU for all current Catalina releases 10.15 - 10.15.6. Let's start with the standard disclaimer:
Building XNU requires some patience, and some open source dependencies which are not pre-installed. This post walks through all the steps necessary to build the open source version of XNU on supported Apple hardware.


Building XNU for macOS Big Sur 11.0.1 (Intel)

 The macOS Big Sur 11.0.1 kernel (XNU) source has been released here:  source ,  tarball . A lot of things have changed in Big Sur, a...