It looks like you have the wrong adapter type selected OR the wrong firmware.
You should be able to get help by searching here as This was a big thing a month ago, but I don’t remember what needed what,. You can also check here
Hey, yeah did check the installation fail to start, but no joy with the suggestions there. I wonder if the port is incorrect but all documentation I can find on HA Yellow suggests this is what is used for Zigbee built in
The Home Assistant Yellow team officially supports ZHA (Zigbee Home Automation), the Zigbee stack integrated into Home Assistant Core.
The Zigbee2MQTT project has experimental support (in beta stage) for the Silicon Labs radio on Home Assistant Yellow. With this setting Zigbee2MQTT is known to work on Home Assistant Yellow.
Note: The Zigbee Home Automation integration is active by default! If you are using Zigbee2MQTT, remember to delete and ignore the discovered Zigbee Home Automation integration to avoid interference.
Note: When setting up Zigbee2MQTT with the Home Assistant Yellow, you will need to configure the adapter type in Zigbee2MQTT. Make sure the following is present in your Zigbee2MQTT configuration:
I guess Zigbee2MQTT on HAOS is an older version if they still recommend the ezsp driver, because the current version of Zigbee2MQTT has deprecated that driver in favor of ember.
Format your code properly please. It’s probably an indentation error (all the lines below serial should have 2 spaces behind them), but we can’t be sure if you don’t paste it as proper code.
Ah! I’m guessing this is from the Z2M addon config page, right?
If so, you need to remove the serial line entirely and the spaces before the remaining lines.
serial: is already present in the addon config page as a header. You don’t need to add it again yourself. You can see this post from another user who had the same issue