Dear All,
this is my 1st post here, please be patient....
I'm lost in uname -a
Linux orangepizero 4.19.62-sunxi #5.92 SMP Wed Jul 31 22:07:23 CEST 2019
armv7l GNU/Linux
regarding systemd dependencies.
I need efis.service starting /after/ gpsd.service
I put every possible dependency into the UNIT file, but efis.service
stats always before. gpsd.service establishs a socket and a dbus shared
memory section and depending on a race condition efis.service fails to
start, due to a segementation violation, because gpsd has not yet
established the SHM.
systemctl --full status efis.service
● efis.service
Loaded: loaded (/lib/systemd/system/efis.service; enabled; vendor
preset: enabled)
Active: active (running) since Thu 2021-02-18 19:32:16 CET; 32min ago
Main PID: *789* (OrPi_EFIS.out)
Tasks: 5 (limit: 4915)
CGroup: /system.slice/efis.service
└─789 /usr/bin/OrPi_EFIS.out
Feb 18 19:32:16 orangepizero systemd[1]: Started efis.service.
root@orangepizero:/home/hk# systemctl --full status gpsd.service
● gpsd.service - GPS (Global Positioning System) Daemon
Loaded: loaded (/lib/systemd/system/gpsd.service; enabled; vendor
preset: enabled)
Active: active (running) since Thu 2021-02-18 19:32:16 CET; 33min ago
Process: *810* ExecStart=/usr/local/sbin/gpsd $GPSD_OPTIONS $OPTIONS
$DEVICES (code=exited, status=0/SUCCESS)
Main PID: *822* (gpsd)
Tasks: 2 (limit: 4915)
CGroup: /system.slice/gpsd.service
└─822 /usr/local/sbin/gpsd -n /dev/ttyUSB0
and here's the UNIT file
cat /lib/systemd/system/efis.service
[UNIT]
Description=EFIS systemd service
DefaultDependencies=true
[Service]
Type=simple
BindsTo=dbus.service
BindsTo=gpsd.socket
After=dbus.service gpsd.service
ExecStart=/usr/bin/OrPi_EFIS.out
[Install]
WantedBy=multi-user.target
Also=gpsd.service
Can you help, before I go crazy??
Thank-you!
hk
