Couldn't read configfile - 2022 Linux LTS Kernel Linux Mint 20.3

[tmanok]

Hi Everyone,

I'm experiencing something similar to this issue with Linux Mint 20.3 on a 2010 27" iMac (i5-750).

The program operates at its defaults, however it does not read the configuration file (currently in /etc/mbpfan.conf as it should be with readable permissions, it's also running as root from systemd (default for apt install mbpfan).

After stopping the service, I can execute the application with "sudo mbpfan -f -v" temporarily to see:

Writing a new .pid file with value 3107153 at: /var/run/mbpfan.pid
mbpfan[3107153]: Writing a new .pid file with value 3107153 at: /var/run/mbpfan.pid
Successfully written a new .pid file with value 3107153 at: /var/run/mbpfan.pid
mbpfan[3107153]: Successfully written a new .pid file with value 3107153 at: /var/run/mbpfan.pid
Using new sensor path for kernel >= 3.15.0 or some CentOS versions with kernel 3.10.0
Found hwmon path at /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp
Found 4 sensors
Found 3 fans
Couldn't read configfile
Sleeping for 2 seconds to get first temp delta
Old Temp 64: New Temp: 63, Fan Speed: 2000
Old Temp 64: New Temp: 63, Fan Speed: 2000
Old Temp 64: New Temp: 63, Fan Speed: 940
Sleeping for 1 seconds
...

apt package version: 2.1.1-2
Kernel: Linux 2010-iMac 5.4.0-99-generic #112-Ubuntu SMP Thu Feb 3 13:50:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
"lsmod | grep -e applesmc -e coretemp" displays both modules.
Systemd file location: /etc/systemd/system/sysinit.target.wants/mbpfan.service
Systemd file contents:

[Unit]
Description=A fan manager daemon for MacBook Pro
After=sysinit.target

[Service]
Type=simple
ExecStart=/usr/sbin/mbpfan -f -v > 
ExecReload=/usr/bin/kill -HUP $MAINPID
PIDFile=/var/run/mbpfan.pid
Restart=always
StandardOutput=/var/log/mbpfan.log
StandardError=/var/log/mbpfan-error.log

[Install]
WantedBy=sysinit.target

I added the standard output and stderr logging to the systemd unit/service file. Did not work as expected, that would be a nice feature to have moving forward by default.

Thanks MBPFan Team!

Tmanok