Re: gpsd.socket file reverts to default

[Charles Curley]

On Fri, 5 Jun 2020 14:51:45 -0700
Rich Wales <richw@richw.org> wrote:

> I had previously added the line "SocketUser=gpsd", and also commented
> out the second ListenStream line (since I am not using IPv6 on the
> system in question).  But the original version of the configuration
> file reappeared from somewhere.

What is going on is that files under /var/systemd/ get updated by your
package manager (and possibly other things), and your changes get
stomped upon.

To fix this, run "systemctl edit <unit.name>". In this case, unit.name
is gpsd.socket. This will copy the unit file to /etc/systemd, which is
reserved for your custom files, and takes precedence over /var/systemd.

Or copy the unit file in manually and edit it there. See "man systemctl"
and search on "edit" for the gory details. Then run "systemctl
daemon-reload".

systemd is a RPITA, and requires a lot of study to get right. I make no
claim to understanding it.

Incidentally, a lot of other packages are doing this sort of thing.
Keep an eye out for them.

-- 
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