Unable to write pid file mosquitto (TLS configuration)

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For the past couple days I`ve been trying to solve this issue. Been running on Ubuntu 22.04 and Mosquitto 2.0.11.

my mosquitto.conf file:

pid_file /run/mosquitto/mosquitto.pid

persistence false
persistence_location /var/lib/mosquitto/

log_dest file /var/log/mosquitto/mosquitto.log

include_dir /etc/mosquitto/conf.d

listener 8883

cafile /etc/mosquitto/certs/ca.crt
certfile /etc/mosquitto/certs/server.crt
keyfile /etc/mosquitto/certs/server.key
require_certificate false
tls_version tlsv1.2

I`ve tried to change the ownership of the folder and change the .pid file to /var/run/mosquitto, but nothing seems to work. I keep getting the unable to write .pid file error.

Could it be a problem with the versions? Or is it something else?

  • Have you tried writing the file elsewhere (tested with 2.0.11 and it works OK). How did you “change ownership of the folder”? (/run is a tmpfs that is created at boot, on Ubuntu at least). This may help.

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  • Also explain what you changed and how you are testing this

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