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<p>Dear All,</p>
<p>this is my 1st post here, please be patient....</p>
<p>I'm lost in uname -a<br>
Linux orangepizero 4.19.62-sunxi #5.92 SMP Wed Jul 31 22:07:23
CEST 2019 armv7l GNU/Linux<br>
</p>
<p>regarding systemd dependencies.</p>
<p>I need efis.service starting <i>after</i> gpsd.service</p>
<p>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.</p>
<p>systemctl --full status efis.service<br>
● efis.service<br>
Loaded: loaded (/lib/systemd/system/efis.service; enabled;
vendor preset: enabled)<br>
Active: active (running) since Thu 2021-02-18 19:32:16 CET;
32min ago<br>
Main PID: <b>789</b> (OrPi_EFIS.out)<br>
Tasks: 5 (limit: 4915)<br>
CGroup: /system.slice/efis.service<br>
└─789 /usr/bin/OrPi_EFIS.out<br>
<br>
Feb 18 19:32:16 orangepizero systemd[1]: Started efis.service.<br>
root@orangepizero:/home/hk# systemctl --full status gpsd.service<br>
● gpsd.service - GPS (Global Positioning System) Daemon<br>
Loaded: loaded (/lib/systemd/system/gpsd.service; enabled;
vendor preset: enabled)<br>
Active: active (running) since Thu 2021-02-18 19:32:16 CET;
33min ago<br>
Process: <b>810</b> ExecStart=/usr/local/sbin/gpsd
$GPSD_OPTIONS $OPTIONS $DEVICES (code=exited, status=0/SUCCESS)<br>
Main PID: <b>822</b> (gpsd)<br>
Tasks: 2 (limit: 4915)<br>
CGroup: /system.slice/gpsd.service<br>
└─822 /usr/local/sbin/gpsd -n /dev/ttyUSB0</p>
<p>and here's the UNIT file</p>
<p>cat /lib/systemd/system/efis.service<br>
[UNIT]<br>
Description=EFIS systemd service<br>
DefaultDependencies=true<br>
[Service]<br>
Type=simple<br>
BindsTo=dbus.service<br>
BindsTo=gpsd.socket<br>
After=dbus.service gpsd.service<br>
ExecStart=/usr/bin/OrPi_EFIS.out<br>
[Install]<br>
WantedBy=multi-user.target<br>
Also=gpsd.service<br>
</p>
<p>Can you help, before I go crazy??</p>
<p>Thank-you!</p>
<p>hk</p>
<p><br>
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