HAOS with a TrueNAS VM

As of writing this is the current state of Home Assistant installation methods. Of course, I want all the check marks.

The Problem

I am using TrueNAS, the installation provided for x86_64 is a disk image. TrueNAS wants to use a zvol so I cant just attach this disk and expand it. I found some suggestions about using a live os and using Etcher to write the image. In the end I think I found a better solution.

Solution

I started off by creating a dataset for vms. I then created a vm with a 40G disk pointed at the new dataset. This created a zvol for my vm on the new dataset. Now I need to locate that new zvol.

zfs list

In my case the dataset I created was called vm, which was nested under another dataset name One.

One/vm

Now I needed to see where this volume was being mapped.

ls -l /dev/zvol/One/vm

We will save the name zd0 for later.

I downloaded and unzipped the image on my local computer and then moved it to my TrueNAS server. You could also do this directly to TrueNAS using wget and tar.

You can find images here. Once you have it downloaded, extracted and located on your TrueNAS server we need to convert the haos x86_64 image to raw. You will need to replace the path /path/to/image/ in the following command with the path where you placed the image.

qemu-img convert -f qcow2 /path/to/image/haos_ova-9.4.qcow2 -O raw /path/to/image/haos_ova-9.4.raw

Now we write this image to the zvol using the following. You will need to replace the path /path/to/image/ in the following command with the path where you placed the image. You will also need to replace zd0 with the output that you saved earlier, from the output of the ls command.

sudo dd if=/path/to/image/haos_ova-9.4.raw of=/dev/zd0 bs=1M

This could take some time, but once it is complete you can start your vm and it should boot into HAOS.