b7be663ced
* Yellow: Always use mini-UART for Bluetooth Unfortunately, the mini-UART device tree adjusts the alias for serial1, which we need to make ttyAMA1 the Zigbee UART (UART4). However, we can no simply adjust that overlay, as the overlays are not built as part of the Buildroot build. Instead, they are directly copied from Raspberry Pi's Firmware repostiory. Instead of using device tree overlays, just apply the changes to our Yellow specific device tree. To avoid that the device tree gets loaded anyhow, we could adjust config.txt but that has complications on its own. Since the overlay might be conflicting with the Yellow device tree anyways, just remove all of them. Note: The miniuart-bt.dtbo overlay won't be present, while config.txt of upgraded instances still reference it. It seems that this doesn't cause problems at boot time. Leaving the dtoverlay=miniuart-bt present also allows user to downgrade in case needed. * Avoid duplicating 98-rpi.conf
Home Assistant Operating System
Home Assistant Operating System (formerly HassOS) is a Linux based operating system optimized to host Home Assistant and its Add-ons.
Home Assistant Operating System uses Docker as Container engine. It by default deploys the Home Assistant Supervisor as a container. Home Assistant Supervisor in turn uses the Docker container engine to control Home Assistant Core and Add-Ons in separate containers. Home Assistant Operating System is not based on a regular Linux distribution like Ubuntu. It is built using Buildroot and it is optimized to run Home Assistant. It targets single board compute (SBC) devices like the Raspberry Pi or ODROID but also supports x86-64 systems with UEFI.
Features
- Lightweight and memory-efficient
- Minimized I/O
- Over The Air (OTA) updates
- Offline updates
- Modular using Docker container engine
Supported hardware
- Raspberry Pi
- Hardkernel ODROID
- Asus Tinker Board
- Generic x86-64 (e.g. Intel NUC)
- Virtual appliances
See the full list and specific models here
Getting Started
If you just want to use Home Assistant the official getting started guide and installation instructions take you through how to download Home Assistant Operating System and get it running on your machine.
If you're interested in finding out more about Home Assistant Operating System and how it works read on...
Development
If you don't have experience with embedded systems, Buildroot or the build process for Linux distributions it is recommended to read up on these topics first (e.g. Bootlin has excellent resources).
The Home Assistant Operating System documentation can be found on the Home Assistant Developer Docs website.
Components
- Bootloader:
- Operating System:
- Buildroot LTS Linux
- File Systems:
- Container Platform:
- Docker Engine for running Home Assistant components in containers
- Updates:
- RAUC for Over The Air (OTA) and USB updates
- Security:
- AppArmor Linux kernel security module
Development builds
The Development build GitHub Action Workflow is a manually triggered workflow which creates Home Assistant OS development builds. The development builds are available at os-builds.home-assistant.io.