Am 25.10.2015 um 12:59 schrieb Philippe Clérié: > On 10/23/2015 05:33 PM, Philippe Clérié wrote: >> I'm running raspbian jessy on a rpi2 with an Adafruit GPS board. Gpsd >> refuses to load on boot, but works just fine on manual start. >> >> I am not yet familiar with systemd. Even if I've had to dig a bit to try >> to understand how it works I'm still stumped at the moment, so I don't >> know if there's a bug or I am doing something wrong. >> >> There are 3 systemd units related to gpsd in /lib/systemd/system. >> >> gpsd.service >> gpsd.socket >> gpsdctl@.service >> >> My (weak) understanding is that systemd will start .socket which in turn >> will launch .service. That does not seem to be happening. Well, was there actually a request over the socket /var/run/gpsd.sock which would trigger the start of the service? If there is no such request from a client, the service will not be started. The maintainer of gpsd apparently has setup gpsd so it is started on-demand and apparently there is no demand from a client. > For what it's worth: > > Edit /lib/systemd/system/gpsd.service: > > [Install] > + WantedBy=multi-user.target > Also=gpsd.socket > > Then: > > sudo systemctl enable gpsd.service > sudo reboot > > And gpsd gets loaded. > > I don't know if it is the correct fix but that seems to work. > Editing files in /lib/systemd/system/gpsd.service is not a good idea, since they will be overwritten on the next package update. It's better to make a copy of that file as /etc/systemd/system/gpsd.service and make your changes there, or simply extend the service file with the desired changes using a drop-in snippet: mkdir /etc/systemd/system/gpsd.service.d/ echo -e "[Install]\nWantedBy=multi-user.target" > /etc/systemd/system/gpsd.service.d/local.conf You can pick the names of that conf file as you like. systemd in testing/unstable has a nice shortcut here: Try systemctl edit foo.service (creates a drop-in in /etc) or systemctl edit --full foo.service (creates a full copy in /etc) -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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