Run macOS on QEMU/KVM. With OpenCore + Big Sur support now! Only commercial (paid) support is available.
README.mddocuments the process of creating a
Note: All blobs and resources included in this repository are re-derivable (all instructions are included!).
:green_heart: Looking for commercial support with this stuff? I am available over email for a chat for commercial support options only.
Proxmoxand macOS? See Nick's blog for sure.
Yes, we support offline macOS installations now 🎉
This project can always use your help, time and attention. I am looking for help (pull-requests!) with the following work items:
Documentation around running macOS on popular cloud providers (Hetzner, GCP, AWS). See the
Is This Legal?section and associated references.
accel=hvfflag on macOS on MacBook Pro.
Document (share) how you use this project to build + test open-source projects / get your stuff done.
Document how to use this project for XNU kernel debugging and development.
Document the process to create and reuse VM snapshots. Instantaneous macOS boots would be nice this way.
Document the process to launch a bunch of headless macOS VMs (build farm).
Document usage of munki to deploy software to such a
Enable VNC + SSH support out of the box or more easily.
Better support + docs for AMD Ryzen.
Robustness improvements are always welcome!
(Not so) crazy idea - automate the macOS installation via OpenCV.
A modern Linux distribution. E.g. Ubuntu 20.04 LTS 64-bit or later.
QEMU >= 4.2.0
A CPU with Intel VT-x / AMD SVM support is required (
egrep '(vmx|svm)' /proc/cpuinfo)
A CPU with SSE4.1 support is required for >= macOS Sierra
A CPU with AVX2 support is required for >= macOS Mojave
Note: Older AMD CPU(s) are known to be problematic. AMD FX-8350 works but Phenom II X3 720 does not. Ryzen processors work just fine.
echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs
To make this change permanent, you may use the following command.
sudo cp kvm.conf /etc/modprobe.d/kvm.conf # for intel boxes
sudo apt-get install qemu uml-utilities virt-manager git \ wget libguestfs-tools p7zip-full -y
This step may need to be adapted for your Linux distribution.
git clone --depth 1 https://github.com/kholia/OSX-KVM.git
macOS Big Sur.
You can choose your desired macOS version here. After executing this step, you should have the
BaseSystem.dmgfile in the current folder.
$ ./fetch-macOS.py # ProductID Version Post Date Title 1 061-26578 10.14.5 2019-10-14 macOS Mojave 2 061-26589 10.14.6 2019-10-14 macOS Mojave 3 041-91758 10.13.6 2019-10-19 macOS High Sierra 4 041-88800 10.14.4 2019-10-23 macOS Mojave 5 041-90855 10.13.5 2019-10-23 Install macOS High Sierra Beta 6 061-86291 10.15.3 2020-03-23 macOS Catalina 7 001-04366 10.15.4 2020-05-04 macOS Catalina 8 001-15219 10.15.5 2020-06-15 macOS Catalina 9 001-36735 10.15.6 2020-08-06 macOS Catalina 10 001-36801 10.15.6 2020-08-12 macOS Catalina 11 001-51042 10.15.7 2020-09-24 macOS Catalina 12 001-57224 10.15.7 2020-10-27 macOS Catalina 13 001-68446 10.15.7 2020-11-11 macOS Catalina 14 001-79699 11.0.1 2020-11-12 macOS Big Sur
Choose a product to download (1-14): 13
Note: Modern NVIDIA GPUs are supported on HighSierra but not on later versions.
BaseSystem.dmgfile into the
qemu-img convert BaseSystem.dmg -O raw BaseSystem.img
mac_hdd.imgto something else, the boot scripts will need to be updated to point to the new image name.
qemu-img create -f qcow2 mac_hdd_ng.img 128G
NOTE: Create this HDD image file on a fast SSD/NVMe disk for best results.
OpenCore-Boot.shscript to start the installation process.
Note: This same script works for Big Sur, Catalina, Mojave, and High Sierra.
You are all set! 🙌
(OPTIONAL) Use this macOS VM disk with libvirt (virt-manager / virsh stuff).
macOS-libvirt-Catalina.xmlfile and change the various file paths (search for
CHANGEMEstrings in that file). The following command should do the trick usually.
sed -i "s/CHANGEME/$USER/g" macOS-libvirt-Catalina.xml
virsh --connect qemu:///system define macOS-libvirt-Catalina.xml
virt-managerand start the
Note: You may need to run
sudo ip link delete tap0command before
virt-manageris able to start the
Nice job on setting up a
Virtual Hackintoshsystem! Such a system can be used for a variety of purposes (e.g. software builds, testing, reversing work), and it may be all you need, along with some tweaks documented in this repository.
However, such a system lacks graphical acceleration, a reliable sound sub-system, USB (3) functionality and other similar things. To enable these things, take a look at our notes. We would like to resume our testing and documentation work around this area. Please reach out to us if you are able to fund this area of work.
It is possible to have 'beyond-native-apple-hw' performance but it does require work, patience, and a bit of luck (perhaps?).
I have the following commands present in
sudo ip tuntap add dev tap0 mode tap sudo ip link set tap0 up promisc on sudo ip link set dev virbr0 up sudo ip link set dev tap0 master virbr0
This has been enough for me so far.
Note: You may need to enable thefunctionality manually on modern Ubuntu versions.
To get sound on your virtual Mac, see the "Virtual Sound Device" in notes.
To passthrough GPUs and other devices, see these notes.
Need a different resolution? Check out the notes included in this repository.
To generate your own SMBIOS, use GenSMBIOS.
The "secret" Apple OSK string is widely available on the Internet. It is also included in a public court document available here. I am not a lawyer but it seems that Apple's attempt(s) to get the OSK string treated as a trade secret did not work out. Due to these reasons, the OSK string is freely included in this repository.
Gabriel Somlo also has some thoughts on the legal aspects involved in running macOS under QEMU/KVM.
You may also find this 'Announcing Amazon EC2 Mac instances for macOS' article interesting.
My aim is to enable macOS based educational tasks, builds + testing, kernel debugging, reversing, and macOS security research in an easy, reproducible manner without getting 'invested' in Apple's closed ecosystem (too heavily).
Virtual Hackintoshsystems are not intended to replace the genuine physical macOS systems.
Personally speaking, this repository has been a way for me to 'exit' the Apple ecosystem. It has helped me to test and compare the interoperability of
Canon CanoScan LiDE 120scanner, and
Brother HL-2250DNlaser printer. And these devices now work decently enough on modern versions of Ubuntu (Yay for free software). Also, a long time back, I had to completely wipe my (then) brand new
MacBook Pro (Retina, 15-inch, Late 2013)and install Xubuntu on it - as the
OS Xkernel kept crashing on it!
Backstory: I was a (poor) student in Canada once and Apple made my work on cracking Apple Keychains a lot harder than it needed to be. This is how I got interested in Hackintosh systems.