Description
The problem
After a Backup (Machine 1) > Restore (Machine 2), MQTT broker not responding
What version of Home Assistant Core has the issue?
core-2025.5.3
What was the last working version of Home Assistant Core?
core-2025.5.3
What type of installation are you running?
Home Assistant OS
Integration causing the issue
MQTT
Link to integration documentation on our website
No response
Diagnostics information
See:
https://community.home-assistant.io/t/no-mqtt-after-backup-restore/364888/6
Example YAML snippet
Anything in the logs that might be useful for us?
cont-init: info: running /etc/cont-init.d/mosquitto.sh
[11:41:44] INFO: SSL is not enabled
cont-init: info: /etc/cont-init.d/mosquitto.sh exited 0
cont-init: info: running /etc/cont-init.d/nginx.sh
cont-init: info: /etc/cont-init.d/nginx.sh exited 0
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service legacy-services: starting
services-up: info: copying legacy longrun mosquitto (no readiness notification)
services-up: info: copying legacy longrun nginx (no readiness notification)
[11:41:45] INFO: Starting NGINX for authentication handling...
s6-rc: info: service legacy-services successfully started
[11:41:45] INFO: Starting mosquitto MQTT broker...
1748403705: Error: Unable to open include_dir '/share/mosquitto'. <---------------------------
1748403705: Error found at /etc/mosquitto/mosquitto.conf:43. <---------------------------
[03:41:45] WARNING: Halt add-on
s6-rc: info: service legacy-services: stopping
Additional information
No response