(1) Open file rbfeeder.ini for editing
sudo nano /etc/rbfeeder.ini
(2) In file opened, in [mlat] section ADD line shown in RED
NOTE: The entire text in RED make one single line command, though forum might have wrapped it in 2 or 3 lines.
[client]
key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
sn=EXTRPI014534
lat=43.62
lon=-79.48
alt=128
network_mode=true
log_file=/var/log/rbfeeder.log
disable_log=0
sat_used=0
sat_visible=0
[network]
mode=beast
external_port=30205
external_host=127.0.0.1
[mlat]
autostart_mlat=true
#mlat_cmd=/usr/bin/python3.7 /usr/bin/mlat-client
mlat_cmd=/usr/bin/python3.7 /usr/bin/mlat-client --input-type dump1090 --input-connect 127.0.0.1:32457 --server mlat1.rb24.com:40900 --lat 43.62 --lon -79.48 --alt 128 --user EXTRPI014534 --results beast,connect,127.0.0.1:32004
(3) Save file (Press Ctrl & o Keys togather) and Close file (Press Ctrl & x Keys togather)
(4) Reboot Pi
(5) Check status. Is mlat line is there in CGroup: ?
sudo systemctl status rbfeeder