It is being made increasing difficult to run a Supervised installation, by choosing to do so you understand the guidelines linked in the next paragraph. If you are new to Home Assistant and/or Linux, then this installation type is most likely not for you and you should choose to run Home Assistant OS on your Pi.
Using Debian 11 and following a strict set of guidelines available HERE will give you an officially supported installation of Home Assistant Supervised. If you choose at anytime to install additional software to the Debian operating system, your installation may become officially unsupported.
If you do not understand what this means, or that making almost any changes to the underlying OS may render your install Unsupported/Unhealthy, this installation method is not for you and you should install HA OS. If you do not require the supervisor, then installing HA Container may be a better option and will allow you full control over the OS to install additional software and Docker containers.
This guide will help you to install Home Assistant Supervised, on a Raspberry Pi with Debian 11. This guide has been tested on a Raspberry Pi 4 4gb model, with USB3 SSD as the boot drive. This installation takes approx 30 mins to complete, but may be faster/slower depending on the boot drive you use and your internet speed. I completed the install in under 20 mins with the above hardware.
While every effort has been made to ensure this guide complies with ADR-0014, no guarantee can be made it does now, or in the future.
In this guide, you will be using Debian 11 as the operating system. This type of installation is what is called “headless” and after the installation is complete, you will not need to have a keyboard, mouse or monitor attached (although you can if you prefer).
What is Home Assistant Supervised?
Home Assistant is a full UI managed home automation ecosystem that runs Home Assistant Core, the Home Assistant Supervisor and add-ons. It comes pre-installed on Home Assistant OS, but can be installed on any Linux system. It leverages Docker, which is managed by the Home Assistant Supervisor plus the added benefit of dozens of add-ons (think app store) that work natively inside the Home Assistant environment.
If you are new to Home Assistant, you can now proceed to Section 1. If you have an existing Home Assistant installation and need to know how to back up your current configuration, please see the document Backing up and Restoring your configuration located HERE
1.1) Start by downloading the correct
xz-compressed image for your Pi from HERE. For a Pi 4, you will need the image listed as 4 under Family
1.2) While Debian is downloading, you will need to download some software to burn the Debian
xz-compressed image to your SD Card / USB SSD. You will use a program called balenaEtcher, available HERE. Once the Debian image has downloaded, insert your SD Card / USB SSD into your PC and launch Etcher.
Click Select Image and navigate to the location you saved the Debian
xz-compressed image, Click Select Target and then choose your SD card / USB SSD, and then click Flash. Depending on the speed of your card / drive this process can take between 1 and 20 minutes to complete.
1.3) Once the image has been written to the SD card / USB SSD, you can safely remove the SD card / USB SSD and plug it into your Pi. Before powering on the Pi, you will need to connect a Network Cable, HDMI cable, Monitor and a keyboard. Once you have done this, you can connect the power cable to your Pi. The initial boot will take a few minutes to complete. When the Pi is ready to use, you will see a screen that looks like this (or similar).
Debian GNU/Linux 11 rpi4-20210823 tty1 rpi4-20210823 login:
When you see this, you can now login using the default username of root.
1.4) First, you will make sure the OS is up to date by entering the following commands one at a time.
apt update && apt upgrade -y apt install sudo -y
1.5) You will now add a username and make that user part of the sudo group. To do this, run the following command
You will now be asked to enter a password twice (make note of this for later). You will then be asked to enter your first name, last name, phone number etc. You can skip through all this by pressing Enter. Now you have added your user, you will need to make it part of the
sudo group by running the following command.
usermod -aG sudo YOUR_USERNAME
You will now be able to connect to the Pi via SSH using the username and password you have just created to copy and paste the commands needed to install Home Assistant Supervised. Check your router for the IP address of your Pi, or run the following command in the Terminal and look for the entry
inet. You don’t need the
/16 on the end, just the IP which will look like
ip addr show eth0 exit
You will now unplug the monitor and keyboard from the Pi as these will no longer be used. You will continue the installation by connecting to your Pi via SSH using a piece of software called PuTTY (use Terminal on a Mac), available HERE. Putty is a free and open-source terminal emulator, serial console and network file transfer application.
1.6) Open Putty and in the HOST NAME (OR IP ADDRESS) box, enter the IP of your Pi, then select OPEN. You will now be prompted to enter your username and password. This will be the username and password you just setup in step 1.5.
You will now install the OS Agent for Home Assistant. It is used for Home Assistant OS and Home Assistant Supervised installation types and it allows the Home Assistant Supervisor to communicate with the host operating system.
2.1) In Putty terminal run the following commands to update the Debian OS, install Docker and the required dependencies for the OS Agent and the Supervised installer. Execute the following commands one at a time.
sudo -i apt update && sudo apt upgrade -y && sudo apt autoremove -y apt --fix-broken install apt-get install jq wget curl udisks2 libglib2.0-bin network-manager dbus -y curl -fsSL get.docker.com | sh
2.2) Visit the OS Agent page and then replace the version number with the latest available, into the commands below. (i.e. replace all references to 1.2.2 with the latest available)
Execute the following commands one at a time.
wget https://github.com/home-assistant/os-agent/releases/download/1.2.2/os-agent_1.2.2_linux_aarch64.deb dpkg -i os-agent_1.2.2_linux_aarch64.deb
With the OS Agent and dependencies installed, you can move on to installing Home Assistant Supervised.
3.1) Enter each line of the below commands into the terminal and execute them one at a time.
If you have rebooted since section 2, make sure you are running as root before executing the below commands.
Execute the following commands one at a time.
wget https://github.com/home-assistant/supervised-installer/releases/latest/download/homeassistant-supervised.deb dpkg -i homeassistant-supervised.deb
3.2) You may be prompted to choose a machine type during the installation process, if so, choose
The installation time is generally under 5 mins, however it can take longer so be patient. You can check the progress of Home Assistant setup by connecting to the IP address of your machine in Chrome/Firefox on port 8123. (e.g. http://192.168.1.150:8123)
Once you can see the login screen, the setup has been completed and you can set up an account name and password. If you are new to Home Assistant you can now configure any smart devices that Home Assistant has automatically discovered on your network. If you have an existing Home Assistant install and you have a snapshot or YAML files you wish to restore, refer to the document Backing up and Restoring your configuration.
You have completed the installation of Home Assistant Supervised on your Debian machine. It is recommended that you log into your machine at least once a month and use the following command to download security patches and keep the OS up to date. You can do this directly on the machine itself via the terminal.
sudo apt update && sudo apt upgrade -y && sudo apt autoremove –y
If you have an existing Home Assistant install and you have a snapshot or YAML files you wish to restore, refer to Home Assistant website on backing up and restoring your configuration, located HERE
If you are faced with the HA Supervisor showing you the 'Unhealthy Installation' error, click here to expand and follow this procedure to fix it.
4.1) Install the SSH & Web Terminal add-on from with the HA Supervisor add-on store. It looks like this.
Configure the add-on so you can connect to the HA container. Here is an example of a simple working configuration you can use, adjust the
password to suit.
ssh: username: USERNAME password: PASSWORD authorized_keys:  sftp: false compatibility_mode: false allow_agent_forwarding: false allow_remote_port_forwarding: false allow_tcp_forwarding: false zsh: true share_sessions: false packages:  init_commands: 
You will need to change the port to 23 (or other unused port number of your choosing) in the Network section of the Configuration tab. Once you have installed and configured the add-on, move on to the next step.
4.2) Using Putty, login to the HA machine using the IP of the machine and port 23. Use the username and password you configured in the previous step.
4.3) Once logged in you can now execute the following command;
ha jobs options --ignore-conditions healthy
Once you have done this, you should see a message saying, Command completed successfully. You can type
exit to leave the shell connection. You can now also turn off/stop the SSH & Web Terminal add-on in HA as you will no longer need it. It can be restarted at anytime.
Thank you to @Tamsy for input and additional information. I welcome feedback on this guide, please feel free to tag me or PM if you have suggestions on how to make improvements, or find an error that needs correcting.
A link to the old installer information using the installer script can be found on my Github, HERE