[systemd-devel] Systemctl thinks a service file exists that does not

[Cecil Westerhof]

Op ma 28 aug 2023 om 11:55 schreef Andrei Borzenkov <arvidjaar at gmail.com>:

> On Mon, Aug 28, 2023 at 12:27 PM Cecil Westerhof <cldwesterhof at gmail.com>
> wrote:
> >
> > On debian 12, when Itype:
> >     systemctl status spam
> >
> > and giving a tab I get:
> >     spamassassin-maintenance.service  spamassassin.service
> >     spamassassin-maintenance.timer    spamd.service
> >
> > Still:
> >     systemctl start spamassassin.service
> >
> > keeps giving not found.
> >
>
> Those units are probably listed as dependencies somewhere. Units
> listed in Wants or After/Before are not required to exist.
>
> > So systemctl thinks there is a spamassassin.service file, but when
> > starting it does not find it.
> >
> > I do not find a spamassassin.service file on my system. The other
> > three I do find.
> >
> > When using:
> >     find / -name spamassassin.service
> >
> > it does not find spamassassin.service.
> > So why does systemctl think there is a spamassassin.service?
>
> It is not the systemctl, it is your shell completion of the systemctl.
> Just look at the output of "systemctl list-units --all" for
> "not-found".
>

I have to clean up my system: there are 25 not-found services, 3 not-found
targets, 2 not-found mounts and 1 not-found socket.

For spamassassin.service I see:
    ● spamassassin.service
                                          not-found inactive dead
 spamassassin.service

But when I give:
    systemctl list-dependencies spamassassin.service

I get:
    spamassassin.service

I looked into:
    /etc/systemd/system
    /run/systemd/system
    /lib/systemd/system
But I do not find dependencies.

Where else should I look?


Maybe completion should skip missing units. At least for such actions
> as "status" this does not look useful.
>
> > And how do I make it forget it?
> >
>
> systemd cannot forget them as long as units depending on them are still
> loaded.
>


-- 
Cecil Westerhof
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