Home Assistant OS Release 5


Today we also release Home Assistant OS 5.8, the first stable version of the 5.x release series.


  • Improved Multicast Name Resolution on OS level

  • External Data Disk Feature

  • Improved Reliability against Container corruption

  • New support: Raspberry Pi 4 – 8GB

  • New support: ASUS Tinker Board S

  • New support: ODROID-C4

  • Improved: OVA Virtual image includes more drivers

Table of contents

Operating System Changes

Multicast Name Resolution

Release 5 uses systemd-resolved to provide DNS services on the operating system level and acts as a multicast name resolution responder. Besides, mDNS systemd-resolved also supports the LLMNR hostname resolution protocol. In practice, this makes discovering a new installation of Home Assistant OS working in most situations, either using http://homeassistant.local:8123 or http://homeassistant:8123.

External Data Disk

In release 4 we introduced external data disk support. The command datactl allows moving the main data partition to any disk connected to the system. The boot partition and main operating system partitions stay on the boot medium (typically the SD card). Using this approach is more reliable than booting the system from USB. Booting from USB requires several parts of the software stack to rediscover the external storage. In release 5 we made the external data disk feature more robust and the initial moving process much faster. We plan to improve that feature even more and are happy to get your feedback!

Improved Reliability

The main system service to start Home Assistant Supervisor is now more reliable. Home Assistant OS is now able to detect a corrupted supervisor container in most situations and automatically downloads a new version of it. File system checks have also been expanded to the boot partition, which makes sure that all file systems are being checked now.

Under the Hood

Under the hood, we updated to Buildroot 2020.11, which brings tons of new software versions along with bug and security fixes. Some key components which received an update were systemd 246 and AppArmor version 3.0.

Board Support

Raspberry Pi

All Raspberry Pi versions now use Linux Kernel 5.4, just like Raspberry Pi OS. With the move to U-Boot 2020.10, we are now also supporting Raspberry Pi with 8GB of memory. With the new kernel and U-Boot Home Assistant OS can now also run on the Compute Module 4 as well as the Pi 400 (the keyboard). A keyboard is probably not the ideal form factor for a headless system such as Home Assistant OS, but it comes with good cooling, which makes it not the worst choice :-). We recently tested the 64-bit variant of Home Assistant OS much more and feel comfortable to recommend the 64-bit version for Raspberry Pi 4.


The ODROID platforms now use Linux 5.9, which brings improved support for all ODROID platforms such as the ODROID N2(+). For the N2(+) the Real-Time Clock is now supported as well.

Open Virtualization Appliance/Intel NUC

The x86 platforms (Intel NUC, OVA - Open Virtualization Appliance) now use Linux 5.9. The kernel for OVA images has new drivers enabled for Intel Network devices with Virtual Function, PCIe passthrough for Hyper-V, or support for Audio (HDA audio devices).

New Board Support

Besides the ASUS Tinker Board, we now also support the Tinker Board S, a variant with fast on-board eMMC storage. Thanks to [@ubergeek801] we now also have support for ODROID-C4, a cost-effective alternative to Raspberry Pi in a similar form factor.

Other Changes

The build pipeline is now using GitHub Actions and we compress the images using the xz compression algorithm instead of gz. The flashing process will stay the same: Etcher supports flashing from gz as well as xz.

This is all I can think of for now. The release 5.8 will be on the stable channel today, so watch out for the update notification in the Supervisor section. Images are available in the release section over on GitHub.