Moving the Darwin Community in the Right Direction!

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Darwin is the Open Source operating system from Apple that forms the basis for macOS, and PureDarwin is a community project to make Darwin more usable (some people think of it as the informal successor to OpenDarwin).

One current goal of this project is to provide a useful bootable IMG and Virtual of Darwin 10.x Another goal of this project is to provide additional documentation. More

Documentation and quick hints

Please see our PureDarwin Wiki It would be very kind if you could fix the wiki as we have links that are broken as we p

See the Changelog for recent updates of this Wiki.

NEW! Getting the code

We have GitHub, and encourage visitors to use the GitHub repository for both contribution, and checking out the latest build source. 

Additionally, as an interim measure, a version of PureDarwin Xmas with a fixed boot sector, which is compatible with QEMU is also available. 


PureDarwin is currently working on AHCI and eMMC family/drivers for Darwin only they will not support/work on Apple’s macOS. We have a PoC(Point of Concept) of PureDarwin 2.2 qemu image that’s based on Apple’s open source code of macOS 10.10.5 that is only currently available to those who join our IRC channel #puredarwin on freenode.

We are currently working on getting a base Image of PureDarwin 3.6 that’s based on Apple’s open source code of macOS 10.12.3

We are looking for supporters/coders that can help bring about faster Development of PureDarwin while showing Apple that there is still a community of Open Source Darwin Supporters that would like to see more openness from them whether it be from them releasing Binary Drivers for our use as they once did or open source projects like libxpc/launchd again.

PureDarwin’s Current Build Status

Please join us on freenode.net #puredarwin for our info we have USA/UK/Europe Devs who which can receive hardware.

Something to the Open Source Community!

Here’s a guide on Building XNU of the 16.4(10.12.3) Kernel!

Open Terminal && Run these commands in order to build a useable XNU Kernel

Make a Directory called “xnu_build” on your Desktop && cd to it

mkdir -p ~/Desktop/xnu_build
cd ~/Desktop/xun_build

Curl these files from opensource.apple.com

curl -O https://opensource.apple.com/tarballs/dtrace/dtrace-209.20.4.tar.gz && curl -O https://opensource.apple.com/tarballs/AvailabilityVersions/AvailabilityVersions-26.30.3.tar.gz && curl -O https://opensource.apple.com/tarballs/xnu/xnu-3789.41.3.tar.gz 

Run this command to untar all downloaded files and rm the tar.gz files

 	for file in *.tar.gz; do tar -zxf $file; done && rm -f *.tar.gz

Setting up Pre-build Envoerment

git clone https://github.com/PureDarwin/XNU-16.4-Setup-Build.git   

cd XNU-16.4-Setup-Build   

SDK_ROOT=`xcodebuild -version -sdk macosx Path`
sudo mkdir -p "${SDK_ROOT}/usr/local/include/kernel/os"
sudo mkdir -p "${SDK_ROOT}/usr/local/lib/kernel"
sudo cp -rf "${CURRENT_DIR}/libdispatch/firehose_buffer_private.h" "${SDK_ROOT}/usr/local/include/kernel/os/"
sudo cp -rf "${CURRENT_DIR}/libdispatch/libfirehose_kernel.a" "${SDK_ROOT}/usr/local/lib/kernel/"   

cd ../

Building Dtrace and Avaliablilty – copy each line by line and paste into terminal

	cd dtrace-209.20.4
	mkdir -p obj sym dst
	xcodebuild install -target ctfconvert -target ctfdump -target ctfmerge ARCHS="x86_64" SRCROOT=$PWD OBJROOT=$PWD/obj SYMROOT=$PWD/sym DSTROOT=$PWD/dst
	sudo ditto $PWD/dst/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
	cd ..
	cd AvailabilityVersions-26.30.3
	mkdir -p dst
	make install SRCROOT=$PWD DSTROOT=$PWD/dst
	sudo ditto $PWD/dst/usr/local `xcrun -sdk macosx -show-sdk-path`/usr/local
	cd ..

Building XNU 16.4

cd xnu-3789.41.3/


What is Darwin?

Darwin is the Open Source operating system from Apple that forms the basis for Mac OS X, and PureDarwin is a community project to make Darwin more usable (some people think of it as the informal successor to OpenDarwin).

What is PureDarwin?

The goal of this project is to make Darwin more usable by providing an installation ISO, documentation, and add-on software. You are welcome to join #puredarwin on irc.freenode.net if you would like to join PureDarwin development and to add to www.puredarwin.org

How usable is PureDarwin?

PureDarwin can run on VMware as well as real Intel-based hardware. We are successfully running a web server, have built hundreds of software packages with MacPorts running on PureDarwin, including ssh, apache2, tightvnc, Xfce, and others.

Why spend time on Darwin?

For learning and fun.

How does PureDarwin relate to the former OpenDarwin project?

Although some people have been seeing PureDarwin as the informal successor to OpenDarwin, there is no official relationship other than the fact that OpenDarwin and PureDarwin are both downstream Darwin projects. Also, it is no secret that PureDarwin would not exist if OpenDarwin had not closed down. Coming later in time, PureDarwin is in the fortunate position to be able to benefit from the valuable contributions that were rooted in the OpenDarwin project.

How does PureDarwin relate to the DarwinBuild project?

DarwinBuild is one of PureDarwin‘s main upstream projects.

What does the „Pure“ in PureDarwin stand for?

Pure as in beer! It means that we just use components specifically released by Apple for use with Darwin, as well as other Open Source components (coll ectively called „upstream code“). Specifically, it means that we do not use any components from macOS. It also means that we try to stay as close as possible to the „outside world“ as in macOS (e.g., regarding the choice of compilers, options, etc.). It does not mean, however, that we do not modify and add to the upstream code, to the extent that the respective licenses allow.

How can I help PureDarwin?

Pretty much on all fronts. Especially if you are skilled in C, C++, ObjC, Mac OS X, BSD, etc. you should consider joining #puredarwin on irc.freenode.net


We would like to thank

© 2017 PureDarwin Foundation