Re: [gpsd-users] Issue with Rasbian Jessie

[Alexander Carver]

On 2016-03-05 14:25, Bo Berglund wrote:
>>> I believe the gpsd package in Raspbian sets up GSPD to autostart. With
>>> the default configuration, however, GPSD dies at startup, but systemd is
>>> "helpfully" listening on its port, ready to pass data on (but GPSD is
>>> dead). As a result, when you run GPSD from a console, it will find the
>>> default port already occupied, and cgps with the default port will get a
>>> connection (systemd init is listening), but no data (init isn't doing
>>> anything with the port, other than notionally forwarding it to GPSD). If
>>> systemd has tried to start GSPD, then whether GSPD is currently running
>>> or not, you can't use the default port to start it from a terminal. You
>>> have to use the -S option to specify an alternate port, then point cgps
>>> at that port when you run it.
>>
>> If you need to keep systemd you should be able to get around systemd's
>> capture of the socket by disabling its use for gpsd:
>>
>> systemctl disable gpsd.socket
> 
> I tried that command (with sudo) and then netstat -lnpt to check the
> situation.
> But both before and after the list shows the port exists:
> 
> tcp  0  0 127.0.0.1:2947   0.0.0.0:*  LISTEN  -
> 
> Notice, no process holds the port open, just like you said...
> 
> So how can I make this port go away? Do I have to restart Jessie?
> 

You would most likely have to restart the systemd daemon (I believe it
can be restarted while the machine is up and running).

Short of that once you disable the gpsd.socket feature then yes a reboot
should clear it out.