Hello,
Just created another post about the same problem here : Mosquitto won't start on boot after raspbian and emonsd update. It seems Mosquitto is restarted “too early” after creating the log file directory.
First, try to start mosquitto manually :
sudo service mosquitto start
If it works, could you try to make a small change to /home/pi/emonpi/rc.local_jessieminimal (I recommend you do a backup of the file before…) ?
After line 22 (comment for service restart), add sleep 11 (line 23).
22 # Restart services,they should run happy now log dir's are created
23 sleep 11
24 service apache2 restart
25 service redis-server restart
26 service mosquitto restart
27 service supervisor restart
Then, reboot !
Could you confirm it works (or not) ?
I am not sure it is the best / cleanest solution though…
JS