Help with Mosquitto broker 6.5.0

Configuration
1

Hi, this is my first post so please forgive me if I’m not in the right location to ask this.

I’ve been using Home Assistant for 2-3 years and Mosquitto broker for at least a year now with very minimal issues when it comes to updating. I’ve tried to install the latest update 6.5.0 a couple times now and every time I do, it fails to start. The error isn’t very descriptive and I’m not seeing any posts popping up with other people in the same boat.

  • I am going from Mosquitto Broker 6.4.1 to 6.5.0.
  • I’m using the default configuration.
  • Every time I try to start the service I only get one line added to the logs. The error is “exec /init: input/output error”

Any assistance on whether or not this is a flawed update or there is something I need to do would be appreciated. Thank you.

2

Hi,

  • Is your install of Mosquito standalone (e.g. on a seperate server) or the HA Mosquitto Add-On?
  • HAOS? Supervised? other?
  • Any other “odd” signs? (ask in case of dreaded uSD card corruption disk issues)

Something sounds very wrong with the install - my HAOS broker has “just worked” for as long as I can remember. The logs just have the usual reconnections from the HA MQTT Integration:

025-02-08 13:05:31: New connection from 172.30.32.2:47502 on port 1883.
2025-02-08 13:05:31: Client <unknown> closed its connection.

Have you tried:

  • Create a FULL backup, save to another device.
  • Restore a backup ONLY of the broker:
    image
  • Try a different version of backup to restore?
  • Try broker image at the bottom of the config page.
  • Worst case, FULL backup again, then remove the broker Add-On, and install again.
    Here’s a generic guide to setting up the MQTT broker and MQTT-native relevant add-ons which might help…:
    Sonoff Tasmota fails to connect to MQTT - #3 by FloatingBoater

There’s some “hidden” config in the Mosquitto broker Add-On as HA creates credentials for HA internal connections (e.g. the MQTT integration) so I’m not sure if something might survive a re-install.

If this helps, :heart: this post!

3

Hi!

  • It’s the HA Mosquitto Add-On
  • I believe I am on Supervised (I see Supervisor 2025.02.0 in the About)
  • No other issues. If I roll back to 6.4.1 from a backup it works fine. Every time I try to update to 6.5.0 the Add-on fails to start. I’ve attempted a couple times to update over the past month. Did full system reboots. Googled as much as I could. I’m not seeing anyone with any issues but me. I’ve had to restore back to 6.4.1 each time.
  • I have also gone to the Add-Ons → Mosquitto broker → Configuration → Clicked Reset to Defaults (Does not seem to change anything or help me in any way).