Re: [chrony-users] gpsd:ERROR... Permission denied

[Bill Unruh <unruh@xxxxxxxxxxxxxx>]

This has nothing to do with chrony. It is a problem in gpsd. You need to tell
gpsd what it should be reading. Also the error is permission denied, which
suggests that pps0 has wrong permissions for gpsd.
ls -l /dev/pps0
will show you its permission. 
ps auxww |grep gpsd
should show what user/group gpsd is running under.



William G. Unruh __| Canadian Institute for|____ Tel: +1(604)822-3273
Physics&Astronomy _|___ Advanced Research _|____ Fax: +1(604)822-5324
UBC, Vancouver,BC _|_ Program in Cosmology |____ unruh@xxxxxxxxxxxxxx
Canada V6T 1Z1 ____|____ and Gravity ______|_ www.theory.physics.ubc.ca/

On Mon, 5 Feb 2018, Charles Muggen wrote:

> I'm trying to setup chronyd with gpsd on a Raspberry Pi Model 2 running Raspbian Jessie.
>
> I'm getting a continuous stream of errors in my var/log/syslog:
>
> Feb  5 19:32:51 raspberrypi gpsd[610]: gpsd:ERROR: device open failed: Permission denied - retrying read-only
> Feb  5 19:32:51 raspberrypi gpsd[610]: gpsd:ERROR: read-only device open failed: Permission denied
> Feb  5 19:32:51 raspberrypi gpsd[610]: gpsd:ERROR: /dev/pps0: device activation failed.
>
> What could be causing the error?
>
> ##### contents of /etc/chrony/chrony.conf file
> driftfile /var/lib/chrony/chrony.drift
>
> log tracking measurements statistics
> logdir /var/log/chrony
>
> # Stop bad estimates upsetting machine clock.
> maxupdateskew 100.0
>
> dumponexit
> dumpdir /var/lib/chrony
>
> local stratum 8
> manual
> smoothtime 400 0.01
> makestep .1 -1
>
> allow
> logchange 0.5
> rtcsync
>
> # set larger delay to allow the NMEA source to overlap with
> # the other sources and avoid the falseticker status
> refclock SHM 0 refid GPS precision 1e-1 offset 0.9999 delay 0.2
> refclock PPS /dev/pps0 lock NMEA
>
>
> ##### contents of /etc/default/gpsd
> # Default settings for the gpsd init script and the hotplug wrapper.
>
> # Start the gpsd daemon automatically at boot time
> START_DAEMON="true"
>
> # Use USB hotplugging to add new USB devices automatically to the daemon
> USBAUTO="false"
>
> # Devices gpsd should collect to at boot time.
> # They need to be read/writeable, either by user gpsd or the group dialout.
> DEVICES=""
>
> # Other options you want to pass to gpsd
> GPSD_OPTIONS="-n /dev/ttyAMA0 /dev/pps0"
>
>
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