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Docker-OSX · Follow @sickcodes on Twitter

Run Mac OS X in Docker with near-native performance! X11 Forwarding! iMessage security research!

Author

This project is maintained by Sick.Codes. (Twitter)

Additional credits can be found here: https://github.com/sickcodes/Docker-OSX/blob/master/CREDITS.md

Additionally, comprehensive list of all contributors can be found here: https://github.com/sickcodes/Docker-OSX/graphs/contributors

Special thanks to @kholia for maintaining the upstream project, which Docker-OSX is built on top of: OSX-KVM.

Big thanks to the OpenCore team over at: https://github.com/acidanthera/OpenCorePkg. Their well-maintained bootloader provides much of the great functionality that Docker-OSX users enjoy :)

If you like this project, consider contributing here or upstream!

Quick Start Docker-OSX

Catalina

docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:latest

Big Sur

docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:big-sur

Technical details

There currently 4 images, each with different use-cases (explained below):

The images (excluding :naked) launch a container with an existing installation with a couple of premade configurations. This special image was developed by Sick.Codes:

username: user, password: alpine
SSH enabled (localhost:50922)
VNC enabled (localhost:8888) if using ./vnc version
VNC enabled (localhost:8888) if using ./vnc version
auto-updates disabled
serial number generator!
X11 forwarding is enabled
runs on top of QEMU + KVM
supports Big Sur, custom images, Xvfb headless mode
you can clone your container with docker commit

Requirements

20GB disk space for bare minimum installation
virtualization should be enabled in your BIOS settings
a kvm-capable host
at least 50 GBs for :auto (half for the base image, half for your runtime image

TODO

documentation for security researchers
gpu acceleration
support for virt-manager

Docker

Images built on top of the contents of this repository are also available on Docker Hub for convenience: https://hub.docker.com/r/sickcodes/docker-osx

A comprehensive list of the available Docker images and their intended purpose can be found in the Instructions.

Kubernetes

Docker-OSX supports Kubernetes.

Kubernetes Helm Chart & Documentation can be found under the helm directory.

Thanks cephasara for contributing this major contribution.

Support

Small questions & issues

Feel free to open an issue, should you come across minor issues with running Docker-OSX or have any questions.

Resolved issues

Before you open an issue, however, please check the closed issues and confirm that you're using the latest version of this repository — your issues may have already been resolved!

Feature requests and updates

Follow @sickcodes!

Professional support

For more sophisticated endeavours, we offer the following support services:

Enterprise support, business support, or casual support.
Custom images, custom scripts, consulting (per hour available!)
One-on-one conversations with you or your development team.

In case you're interested, contact @sickcodes on Twitter or click here.

License/Contributing

Docker-OSX is licensed under the GPL v3+. Contributions are welcomed and immensely appreciated. You are in-fact permitted to use Docker-OSX as a tool to create proprietary software.

Other cool Docker/QEMU based projects

Run iOS in a Docker container with Docker-eyeOS - https://github.com/sickcodes/Docker-eyeOS

Disclaimer

If you are serious about Apple Security, and possibly finding 6-figure bug bounties within the Apple Bug Bounty Program, then you're in the right place! Further notes: Is Hackintosh, OSX-KVM, or Docker-OSX legal?.

Product names, logos, brands and other trademarks referred to within this project are the property of their respective trademark holders. These trademark holders are not affiliated with our repository in any capacity. They do not sponsor or endorse this project in any way.

Instructions

Container images

There are three different Docker images available, which are suitable for different purposes: latest, auto and naked.

sickcodes/docker-osx:latest - I just want to try it out.
sickcodes/docker-osx:latest - I want to use Docker-OSX to develop/secure apps in Xcode (sign into Xcode, Transporter)
sickcodes/docker-osx:naked - I want to use Docker-OSX for CI/CD-related purposes (sign into Xcode, Transporter)

Create your personal image using :latest. Then, extract the image. Afterwards, you will be able to duplicate that image and import it to the :naked container, in order to revert the container to a previous state repeatedly.

sickcodes/docker-osx:auto - I'm only interested in using the command line. (Useful for compiling software or using Homebrew headlessly).
sickcodes/docker-osx:naked - I need iMessage/iCloud for security research.

I need video output.

The Quick Start command should work out of the box, provided that you keep the following lines. Works in auto & naked machines:

    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \

I need to use Docker-OSX headlessly.

In that case, remove the two lines in your command:

    # -v /tmp/.X11-unix:/tmp/.X11-unix \
    # -e "DISPLAY=${DISPLAY:-:0.0}" \

I need VNC on localhost (Local use only!)

VNC Insecure

Must change -it to -i to be able to interact with the QEMU console

Native QEMU VNC example

docker run -i \
    --device /dev/kvm \
    -p 50922:10022 \
    -p 5999:5999 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e EXTRA="-display none -vnc 0.0.0.0:99,password" \
    sickcodes/docker-osx:big-sur

# type `change vnc password` into the docker terminal and set a password
# connect to localhost:5999 using VNC

NOT TLS/HTTPS Encrypted at all!

Or ssh -N root@1.1.1.1 -L 5999:127.0.0.1:5999, where 1.1.1.1 is your remote server IP.

(Note: if you close port 5999 and use the SSH tunnel, this becomes secure.)

I need VNC to a Remote Host (Secure)

Now you can direct connect VNC to any image!

Add the following line:

-e EXTRA="-display none -vnc 0.0.0.0:99,password"

In the Docker terminal, press enter until you see (qemu).

Type change vnc password

You also need the container IP: docker inspect <containerid> | jq -r '.[0].NetworkSettings.IPAddress'

Or ip n will usually show the container IP first.

Now VNC connect using the Docker container IP, for example 172.17.0.2:5999

Remote VNC over SSH: ssh -N root@1.1.1.1 -L 5999:172.17.0.2:5999, where 1.1.1.1 is your remote server IP and 172.17.0.2 is your LAN container IP.

I have used Docker-OSX before and wish to extract my Mac OS X image.

Use docker commit, copy the ID, and then run docker start -ai <Replace this with your ID>.

Alternatively:

Extract the .img file, and then use that .img file with :naked

Further examples

Apart from the previous examples, there's a myriad of other potential use cases that can work perfectly with Docker-OSX, which you'll see below!

Run Catalina Pre-Installed

docker pull sickcodes/docker-osx:auto

# boot directly into a real OS X shell with a visual display [NOT HEADLESS]
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:auto

# username is user
# passsword is alpine

docker pull sickcodes/docker-osx:auto

# boot directly into a real OS X shell with no display (Xvfb) [HEADLESS]
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    sickcodes/docker-osx:auto

# username is user
# passsword is alpine
# Wait 2-3 minutes until you drop into the shell.

Download the image manually and use it in Docker

This is a particularly good way for downloading the container, in case Docker's CDN (or your connection) happens to be slow.

wget https://images2.sick.codes/mac_hdd_ng_auto.img

docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v "${PWD}/mac_hdd_ng_auto.img:/image" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:naked

Use a pre-built image + arbitrary command line arguments.

docker pull sickcodes/docker-osx:auto

# boot to OS X shell + display + specify commands to run inside OS X!
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e "OSX_COMMANDS=/bin/bash -c \"pwd && uname -a\"" \
    sickcodes/docker-osx:auto

# Boots in a minute or two!

Run Mac OS X headlessly with a custom image

This is particularly helpful for CI/CD pipelines.

# run your own image headless + SSH
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v "${PWD}/mac_hdd_ng.img:/image" \
    sickcodes/docker-osx:naked

Restart a container that starts automatically

Containers that use sickcodes/docker-osx:auto can be stopped while being started.

# find last container
docker ps -a

# docker start old container with -i for interactive, -a for attach STDIN/STDOUT
docker start -ai -i <Replace this with your ID>

Quick Start your own image (naked container image)

This is my favourite container. You can supply an existing disk image as a Docker command line argument.

Pull images out using sudo find /var/lib/docker -size +10G | grep mac_hdd_ng.img
Supply your own local image with the command argument -v "${PWD}/mac_hdd_ng.img:/image" and use sickcodes/docker-osx:naked when instructing Docker to create your container.
- Naked image is for booting any existing .img file, e.g in the current working directory ($PWD)
- By default, this image has a variable called NOPICKER which is "true". This skips the disk selection menu. Use -e NOPICKER=false or any other string than the word true to enter the boot menu.
  
  This lets you use other disks instead of skipping the boot menu, e.g. recovery disk or disk utility.

docker pull sickcodes/docker-osx:naked

# run your own image + SSH
# change mac_hdd_ng.img
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v "${PWD}/mac_hdd_ng.img:/image" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:naked

# run local copy of the auto image + SSH + Boot menu
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v "${PWD}/mac_hdd_ng_auto.img:/image" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e "NOPICKER=false" \
    sickcodes/docker-osx:naked

Run the original version of Docker-OSX


docker pull sickcodes/docker-osx:latest

docker run -it \
    --device /dev/kvm \
    --device /dev/snd \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:latest

# press CTRL + G if your mouse gets stuck
# scroll down to troubleshooting if you have problems
# need more RAM and SSH on localhost -p 50922?

Run but enable SSH in OS X (Original Version)!

docker run -it \
    --device /dev/kvm \
    --device /dev/snd \
    -p 50922:10022 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    sickcodes/docker-osx:latest

# turn on SSH after you've installed OS X in the "Sharing" settings.
ssh user@localhost -p 50922

Autoboot into OS X after you've installed everything

You can use -e NOPICKER=true.

Old machines:

# find you containerID
docker ps

# move the no picker script on top of the Launch script
# NEW CONTAINERS
docker exec containerID mv ./Launch-nopicker.sh ./Launch.sh

# VNC-VERSION-CONTAINER
docker exec containerID mv ./Launch-nopicker.sh ./Launch_custom.sh

# LEGACY CONTAINERS
docker exec containerID bash -c "grep -v InstallMedia ./Launch.sh > ./Launch-nopicker.sh
chmod +x ./Launch-nopicker.sh
sed -i -e s/OpenCore\.qcow2/OpenCore\-nopicker\.qcow2/ ./Launch-nopicker.sh
"

Requirements: KVM on the host

Need to turn on hardware virtualization in your BIOS, very easy to do.

Then have QEMU on the host if you haven't already

# ARCH
sudo pacman -S qemu libvirt dnsmasq virt-manager bridge-utils flex bison iptables-nft edk2-ovmf

# UBUNTU DEBIAN
sudo apt install qemu qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils virt-manager

# CENTOS RHEL FEDORA
sudo yum install libvirt qemu-kvm

# then run
sudo systemctl enable --now libvirtd
sudo systemctl enable --now virtlogd

echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs

sudo modprobe kvm

Start the same container later (persistent disk)

You can now pull the .img file out of the container, which is stored in /var/lib/docker, and supply it as a runtime argument to the :naked Docker image. See above.
This is for when you want to run the SAME container again later.

If you don't run this you will have a new image every time.

# look at your recent containers and copy the CONTAINER ID
docker ps --all

# docker start the container ID
docker start -ai abc123xyz567

# if you have many containers, you can try automate it with filters like this
# docker ps --all --filter "ancestor=sickcodes/docker-osx"
# for locally tagged/built containers
# docker ps --all --filter "ancestor=docker-osx"

Additional Boot Instructions

Boot the macOS Base System
Click Disk Utility
Erase the BIGGEST disk (around 200gb default), DO NOT MODIFY THE SMALLER DISKS. -- if you can't click erase, you may need to reduce the disk size by 1kb
(optional) Create a partition using the unused space to house the OS and your files if you want to limit the capacity. (For Xcode 12 partition at least 60gb.)
Click Reinstall macOS

Creating images:

# You can create an image of an already configured and setup container.
# This allows you to effectively duplicate a system.
# To do this, run the following commands

# make note of your container id
docker ps --all
docker commit containerid newImageName

# To run this image do the following
docker run \
    --device /dev/kvm \
    --device /dev/snd \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    newImageName

Troubleshooting

Big thank you to our contributors who have worked out almost every conceivable issue so far!

LibGTK - Permission denied

https://github.com/sickcodes/Docker-OSX/blob/master/CREDITS.md

libgtk permissions denied error

echo $DISPLAY

# ARCH
sudo pacman -S xorg-xhost

# UBUNTU DEBIAN
sudo apt install x11-xserver-utils

# CENTOS RHEL FEDORA
sudo yum install xorg-x11-server-utils

# then run
xhost +

RAM over-allocation Error

Cause by trying to allocate more ram to the container than you currently have available for allocation: cannot set up guest memory 'pc.ram': Cannot allocate memory.

For example:

[user@hostname ~]$ free -mh
               total        used        free      shared  buff/cache   available
Mem:            30Gi       3.5Gi       7.0Gi       728Mi        20Gi        26Gi
Swap:           11Gi          0B        11Gi

In the example above, the buff/cache already contains 20 Gigabytes of allocated RAM.

Clear the buffer and the cache:

sudo tee /proc/sys/vm/drop_caches <<< 3

Now check the ram again:

[user@hostname ~]$ free -mh
               total        used        free      shared  buff/cache   available
Mem:            30Gi       3.3Gi        26Gi       697Mi       1.5Gi        26Gi
Swap:           11Gi          0B        11Gi

Of course you cannot allocate more RAM that your have. The default is 3 Gigabytes: -e RAM=3.

PulseAudio

Use PulseAudio for sound

Note: AppleALC, alcid and VoodooHDA-OC do not have codec support. However, IORegistryExplorer does show the controller component working.

docker run \
    --device /dev/kvm \
    -e AUDIO_DRIVER=pa,server=unix:/tmp/pulseaudio.socket \
    -v "/run/user/$(id -u)/pulse/native:/tmp/pulseaudio.socket" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    sickcodes/docker-osx

PulseAudio debugging

docker run \
    --device /dev/kvm \
    -e AUDIO_DRIVER=pa,server=unix:/tmp/pulseaudio.socket \
    -v "/run/user/$(id -u)/pulse/native:/tmp/pulseaudio.socket" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e PULSE_SERVER=unix:/tmp/pulseaudio.socket \
    sickcodes/docker-osx pactl list

Nested Hardware Virtualization

Check if your PC has hardware virtualization enabled:

sudo tee /sys/module/kvm/parameters/ignore_msrs <<< 1

egrep -c '(svm|vmx)' /proc/cpuinfo

Routine checks

Confirm that your CPU supports virtualization

Add yourself to the Docker group, KVM group, libvirt group.

If you use sudo dockerd or dockerd is controlled by systemd/systemctl, then you must be in the Docker group:

Try adding yourself to the docker group

sudo usermod -aG docker "${USER}"

and also to the kvm and libvirt groups:

sudo usermod -aG libvirt "${USER}"
sudo usermod -aG kvm "${USER}"

Enable docker daemon

# enable it in systemd
sudo systemctl enable --now docker

# or run ad hoc
sudo dockerd

# or daemonize it
sudo nohup dockerd &

Forward additional ports (nginx)

It's possible to forward additional ports depending on your needs. In this example, we're going to use Mac OS X to host nginx in a way that looks like this:

host:10023 <-> 10023:container:10023 <-> 80:guest

On the host machine, you should run:

docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -e ADDITIONAL_PORTS='hostfwd=tcp::10023-:80,' \
    -p 10023:10023 \
    sickcodes/docker-osx:auto

In a Terminal session running the container, you should run:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

brew install nginx
sudo sed -i -e 's/8080/80/' /usr/local/etc/nginx/nginx.confcd
# sudo nginx -s stop
sudo nginx

nginx should now be reachable on the port 10023.

Additionally, you can string multiple statements, for example:

    -e ADDITIONAL_PORTS='hostfwd=tcp::10023-:80,hostfwd=tcp::10043-:443,'
    -p 10023:10023 \
    -p 10043:10043 \

Enable IPv4 forwarding for bridged network connections

This is not required for LOCAL installations and may cause the host to leak your IP, even if you're using a VPN in the container.

However, if you're trying to connect to an instance of Docker-OSX remotely (e.g. an instance of Docker-OSX hosted in a datacenter), this may improve your performance:

# enable for current session
sudo sysctl -w net.ipv4.ip_forward=1

# OR
# sudo tee /proc/sys/net/ipv4/ip_forward <<< 1

# enable permanently
sudo touch /etc/sysctl.conf
sudo tee -a /etc/sysctl.conf <<EOF
net.ipv4.ip_forward = 1
EOF

# or edit manually with the editor of your choice
nano /etc/sysctl.conf || vi /etc/sysctl.conf || vim /etc/sysctl.conf

# now reboot

Fedora: No internet connectivity with a bridged network

Fedora's default firewall settings may prevent Docker's network interface from reaching the internet. In order to reoslve this, you will need to whitelist the interface in your firewall:

# Set the docker0 bridge to the trusted zone
sudo firewall-cmd --permanent --zone=trusted --add-interface=docker0
sudo firewall-cmd --reload

Virtual network adapters

Fast internet connectivity

-e NETWORKING=vmxnet3

Slow internet connectivity

-e NETWORKING=e1000-82545em

I'd like to use SPICE instead of VNC

Optionally, you can enable the SPICE protocol, which allows you to use remote-viewer to access it rather than VNC.

Note: -disable-ticketing will allow unauthenticated access to the VM. See the spice manual for help setting up authenticated access ("Ticketing").

  docker run \
    --device /dev/kvm \
    -p 50922:10022 \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e EXTRA="-monitor telnet::45454,server,nowait -nographic -serial null -spice disable-ticketing,port=3001" \
    mycustomimage

Then simply do remote-viewer spice://localhost:3001 and add --spice-debug for debugging.

Tips for reducing the size of the image

Start the container as usual, and remove unnecessary files. A useful way to do this is to use du -sh * starting from the / directory, and find large directories where files can be removed. E.g. unnecessary cached files, Xcode platforms, etc.
Once you are satisfied with the amount of free space, enable trim with sudo trimforce enable, and reboot.
Zero out the empty space on the disk with dd if=/dev/zero of=./empty && rm -f empty
Shut down the VM and copy out the qcow image with docker cp stoppedcontainer:/home/arch/OSX-KVM/mac_hdd_ng.img .
Run qemu-img check -r all mac_hdd_ng.img to fix any errors.
Run qemu-img convert -O qcow2 mac_hdd_ng.img deduped.img and check for errors again
OPTIONAL: Run qemu-img convert -c -O qcow2 deduped.img compressed.img to further compress the image. This may reduce the runtime speed though, but it should reduce the size by roughly 25%.
Check for errors again, and build a fresh docker image. E.g. with this Dockerfile

FROM sickcodes/docker-osx
USER arch
COPY --chown=arch ./deduped.img /home/arch/OSX-KVM/mac_hdd_ng.img

Run Docker-OSX headlessly with Telnet

First make sure autoboot is enabled

Next, you will want to set up SSH to be automatically started.

sudo systemsetup -setremotelogin on

Make sure to commit the new docker image and save it, or rebuild as described in the section on reducing disk space.

Then run it with these arguments.

# Run with the -nographic flag, and enable a telnet interface
  docker run \
    --device /dev/kvm \
    -p 50922:10022 \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e EXTRA="-monitor telnet::45454,server,nowait -nographic -serial null" \
    mycustomimage

Setting the appropriate mirrors when building locally

If you are building Docker-OSX locally, you'd probably want to use Arch Linux's mirrors.

Mirror locations can be found here (use 2 letter country codes): https://archlinux.org/mirrorlist/all/

docker build -t docker-osx:latest \
    --build-arg RANKMIRRORS=true \
    --build-arg MIRROR_COUNTRY=US \
    --build-arg MIRROR_COUNT=10 \
    --build-arg VERSION=10.15.6 \
    --build-arg SIZE=200G .

Custom QEMU Arguments (passthrough devices)

Pass any devices/directories to the Docker container & the QEMU arguments using the handy -e EXTRA= runtime options.

# example customizations
docker run \
    -e RAM=4 \
    -e SMP=4 \
    -e CORES=4 \
    -e EXTRA='-usb -device usb-host,hostbus=1,hostaddr=8' \
    -e INTERNAL_SSH_PORT=23 \
    -e MAC_ADDRESS="$(xxd -c1 -p -l 6 /dev/urandom | tr '\n' ':' | cut -c1-17)" \
    -e AUDIO_DRIVER=alsa \
    -e IMAGE_PATH=/image \
    -e SCREEN_SHARE_PORT=5900 \
    -e DISPLAY=:0 \
    -e NETWORKING=vmxnet3 \
    --device /dev/kvm \
    --device /dev/snd \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    docker-osx:latest

Generating serial numbers

For serial numbers, generate them in ./custom OR make docker generate them at runtime (see below).

At any time, verify your serial number before logging in iCloud, etc.

# this is a quick way to check your serial number via cli inside OS X
ioreg -l | grep IOPlatformSerialNumber

# or from the host
sshpass -p 'alpine' ssh user@localhost -p 50922 'ioreg -l | grep IOPlatformSerialNumber'

This example generates a random set of serial numbers at runtime, headlessly

# proof of concept only, generates random serial numbers, headlessly, and quits right after.
docker run --rm -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -e NOPICKER=true \
    -e GENERATE_UNIQUE=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -e OSX_COMMANDS='ioreg -l | grep IOPlatformSerialNumber' \
    sickcodes/docker-osx:auto

This example generates a specific set of serial numbers at runtime

# run the same as above 17gb auto image, with SSH, with nopicker, and save the bootdisk for later.
# you don't need to save the bootdisk IF you supply specific serial numbers!

docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -e NOPICKER=true \
    -e GENERATE_SPECIFIC=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -e SERIAL="C02TW0WAHX87" \
    -e BOARD_SERIAL="C027251024NJG36UE" \
    -e UUID="5CCB366D-9118-4C61-A00A-E5BAF3BED451" \
    -e MAC_ADDRESS="A8:5C:2C:9A:46:2F" \
    -e OSX_COMMANDS='ioreg -l | grep IOPlatformSerialNumber' \
    sickcodes/docker-osx:auto

This example generates a specific set of serial numbers at runtime, with your existing image, at 1000x1000 display resolution.

# run an existing image in current directory, with a screen, with SSH, with nopicker.

stat mac_hdd_ng.img # make sure you have an image if you're using :naked

docker run -it \
    -v "${PWD}/mac_hdd_ng.img:/image" \
    --device /dev/kvm \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -p 50922:10022 \
    -e NOPICKER=true \
    -e GENERATE_SPECIFIC=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -e SERIAL="C02TW0WAHX87" \
    -e BOARD_SERIAL="C027251024NJG36UE" \
    -e UUID="5CCB366D-9118-4C61-A00A-E5BAF3BED451" \
    -e MAC_ADDRESS="A8:5C:2C:9A:46:2F" \
    -e WIDTH=1000 \
    -e HEIGHT=1000 \
    sickcodes/docker-osx:naked

If you want to generate serial numbers, either make them at runtime using -e GENERATE_UNIQUE=true \

Or you can generate them inside the ./custom folder. And then use:

    -e GENERATE_SPECIFIC=true \
    -e SERIAL="" \
    -e BOARD_SERIAL="" \
    -e UUID="" \
    -e MAC_ADDRESS="" \

Making serial numbers persist across reboots


stat mac_hdd_ng_testing.img
touch ./output.env

# generate fresh random serial numbers, with a screen, using your own image, and save env file with your new serial numbers for later.

docker run -it \
    --device /dev/kvm \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -p 50922:10022 \
    -e NOPICKER=true \
    -e GENERATE_UNIQUE=true \
    -e GENERATE_SPECIFIC=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -v "${PWD}/output.env:/env" \
    -v "${PWD}/mac_hdd_ng_testing.img:/image" \
    sickcodes/docker-osx:naked

To use iMessage or iCloud you need to change 5 values.

SERIAL
BOARD_SERIAL
UUID
MAC_ADDRESS

ROM is just the lowercased mac address, without : between each word.

You can tell the container to generate them for you using -e GENERATE_UNIQUE=true

Or tell the container to use specific ones using -e GENERATE_SPECIFIC=true

    -e GENERATE_SPECIFIC=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -e SERIAL="C02TW0WAHX87" \
    -e BOARD_SERIAL="C027251024NJG36UE" \
    -e UUID="5CCB366D-9118-4C61-A00A-E5BAF3BED451" \
    -e MAC_ADDRESS="A8:5C:2C:9A:46:2F" \

How to obtain serial numbers

apt install libguestfs -y
pacman -S libguestfs
yum install libguestfs -y

Inside the ./custom folder you will find 4 scripts.

config-nopicker-custom.plist
opencore-image-ng.sh

These two files are from OSX-KVM.

You don't need to touch these two files.

The config.plist has 5 values replaced with placeholders. Click here to see those values for no reason.

generate-unique-machine-values.sh This script will generate serial numbers, with Mac Addresses, plus output to CSV/TSV, plus make a bootdisk image.

You can create hundreds, ./custom/generate-unique-machine-values.sh --help

./custom/generate-unique-machine-values.sh \
    --count 1 \
    --tsv ./serial.tsv \
    --bootdisks \
    --output-bootdisk OpenCore.qcow2 \
    --output-env source.env.sh

Or if you have some specific serial numbers...

generate-specific-bootdisk.sh

generate-specific-bootdisk.sh \
    --model "${DEVICE_MODEL}" \
    --serial "${SERIAL}" \
    --board-serial "${BOARD_SERIAL}" \
    --uuid "${UUID}" \
    --mac-address "${MAC_ADDRESS}" \
    --output-bootdisk OpenCore-nopicker.qcow2

Change Resolution Docker-OSX - change resolution OpenCore OSX-KVM

The display resolution is controlled by this line:

https://github.com/sickcodes/Docker-OSX/blob/master/custom/config-nopicker-custom.plist#L819

Instead of mounting that disk, Docker-OSX will generate a new OpenCore.qcow2 by using this one cool trick:

-e GENERATE_UNIQUE=true \
-e WIDTH=800 \
-e HEIGHT=600 \

To use WIDTH/HEIGHT, you must use with either -e GENERATE_UNIQUE=true or -e GENERATE_SPECIFIC=true.

It will take around 30 seconds longer to boot because it needs to make a new boot partition using libguestfs.

-e GENERATE_SPECIFIC=true \
-e WIDTH=1920 \
-e HEIGHT=1080 \
-e SERIAL="" \
-e BOARD_SERIAL="" \
-e UUID="" \
-e MAC_ADDRESS="" \

Change Docker-OSX Resolution Examples

# using an image in your current directory
stat mac_hdd_ng.img

docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v "${PWD}/mac_hdd_ng.img:/image" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e GENERATE_SPECIFIC=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -e SERIAL="C02TW0WAHX87" \
    -e BOARD_SERIAL="C027251024NJG36UE" \
    -e UUID="5CCB366D-9118-4C61-A00A-E5BAF3BED451" \
    -e MAC_ADDRESS="A8:5C:2C:9A:46:2F" \
    -e MASTER_PLIST_URL=https://raw.githubusercontent.com/sickcodes/Docker-OSX/master/custom/config-nopicker-custom.plist \
    -e WIDTH=1600 \
    -e HEIGHT=900 \
    sickcodes/docker-osx:naked

# generating random serial numbers, using the DIY installer, along with the screen resolution changes.
docker run -it \
    --device /dev/kvm \
    -p 50922:10022 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e GENERATE_UNIQUE=true \
    -e WIDTH=800 \
    -e HEIGHT=600 \
    sickcodes/docker-osx:latest

Here's a few other resolutions! If you resolution is invalid, it will default to 800x600.

    -e WIDTH=800 \
    -e HEIGHT=600 \

    -e WIDTH=1280 \
    -e HEIGHT=768 \

    -e WIDTH=1600 \
    -e HEIGHT=900 \

    -e WIDTH=1920 \
    -e HEIGHT=1080 \

    -e WIDTH=2560 \
    -e HEIGHT=1600 \

Mounting physical disks in Mac OS X

Pass the disk into the container as a volume and then pass the disk again into QEMU command line extras with.

Use the config-custom.plist because you probably want to see the boot menu, otherwise omit the first line:

DISK_TWO="${PWD}/mount_me.img"

-e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist' \
-v "${DISK_TWO}:/disktwo" \
-e EXTRA='-device ide-hd,bus=sata.5,drive=DISK-TWO -drive id=DISK-TWO,if=none,file=/disktwo,format=qcow2' \

Example

OSX_IMAGE="${PWD}/mac_hdd_ng_xcode_bigsur.img"
DISK_TWO="${PWD}/mount_me.img"

docker run -it \
    --device /dev/kvm \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist' \
    -v "${OSX_IMAGE}":/image \
    -v "${DISK_TWO}":/disktwo \
    -e EXTRA='-device ide-hd,bus=sata.5,drive=DISK-TWO -drive id=DISK-TWO,if=none,file=/disktwo,format=qcow2' \
    sickcodes/docker-osx:naked

USB Passthrough

The simplest way to do this is the following:

First of all, in order to do this, QEMU must be started as root. It is also potentially possible to do this by changing the permissions of the device in the container. See here.

For example, create a new Dockerfile with the following

FROM sickcodes/docker-osx
USER arch
RUN sed -i -e s/exec\ qemu/exec\ sudo\ qemu/ ./Launch.sh
COPY --chown=arch ./new_image.img /home/arch/OSX-KVM/mac_hdd_ng.img

Where new_image.img is the qcow2 image you extracted. Then rebuild with docker build .

Find out the bus and port numbers of your USB device which you want to pass through to the VM.

lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    |__ Port 2: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 2: Dev 5, If 1, Class=Chip/SmartCard, Driver=, 12M
    |__ Port 3: Dev 2, If 0, Class=Wireless, Driver=, 12M
    |__ Port 3: Dev 2, If 1, Class=Wireless, Driver=, 12M
    |__ Port 5: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 5: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M

In this example, we want to pass through a smartcard device. The device we want is on bus 1 and port 2.

There may also be differences if your device is usb 2.0 (ehci) vs usb 3.0 (xhci). See here for more details.

# hostbus and hostport correspond to the numbers from lsusb
# runs in privileged mode to enable access to the usb devices.
docker run \
  --privileged \
  --device /dev/kvm \
  -e RAM=4 \
  -p 50922:10022 \
  -e "DISPLAY=${DISPLAY:-:0.0}" \
  -e EXTRA="-device virtio-serial-pci -device usb-host,hostbus=1,hostport=2" \
  mycustomimage

You should see the device show up when you do system_profiler SPUSBDataType in the MacOS shell.

Important Note: this will cause the host system to lose access to the USB device while the VM is running!

What is `${DISPLAY:-:0.0}`?

$DISPLAY is the shell variable that refers to your X11 display server.

${DISPLAY} is the same, but allows you to join variables like this:

e.g. ${DISPLAY}_${DISPLAY} would print :0.0_:0.0
e.g. $DISPLAY_$DISPLAY would print :0.0

...because $DISPLAY_ is not $DISPLAY

${variable:-fallback} allows you to set a "fallback" variable to be substituted if $variable is not set.

You can also use ${variable:=fallback} to set that variable (in your current terminal).

In Docker-OSX, we assume, :0.0 is your default $DISPLAY variable.

You can see what yours is

echo $DISPLAY

That way, ${DISPLAY:-:0.0} will use whatever variable your X11 server has set for you, else :0.0

What is `-v /tmp/.X11-unix:/tmp/.X11-unix`?

-v is a Docker command-line option that lets you pass a volume to the container.

The directory that we are letting the Docker container use is a X server display socket.

/tmp/.X11-unix

If we let the Docker container use the same display socket as our own environment, then any applications you run inside the Docker container will show up on your screen too! https://www.x.org/archive/X11R6.8.0/doc/RELNOTES5.html

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