[systemd-devel] Have I got circular dependencies?

[Kevin P. Fleming]

Indeed! While it will take some time, I can highly recommend reading
the entirety of the various man pages: systemd.unit, systemd.service,
systemd.target, systemd.special. I've been able to take advantage of
many 'not obvious' features by doing that.

On Mon, Jan 24, 2022 at 7:21 AM Wols Lists <antlists at youngman.org.uk> wrote:
>
> On 24/01/2022 11:08, Kevin P. Fleming wrote:
> > According to 'man systemd.unit' it goes in the '[Unit]' section, like
> > all other dependency statements.
>
> Thank you very much. The usual problem of "where's the docu I'm looking
> for?" :-)
>
> Cheers,
> Wol
> >
> > On Sun, Jan 23, 2022 at 3:15 PM Wols Lists <antlists at youngman.org.uk> wrote:
> >>
> >> On 23/01/2022 19:44, Andrei Borzenkov wrote:
> >>> Where dependency to /home comes from? It is not in your unit file.
> >>
> >> If it thinks my unit depends on /home, that's wrong. /home comes from
> >> fstab, and the partition is not available until AFTER my service has
> >> run. Home is on an lv, which is on raid, which is on dm-integrity, which
> >> isn't available until my service has turned it on ...
> >>>
> >>> Otherwise normal services are ordered by default after sysinit.target and
> >>> local file systems are ordered before sysinit.target so you have loop. Add
> >>> DefaultDependencies=no to your service definition.
> >>
> >> Thanks. I presume that goes in the [Install] section? I can find plenty
> >> of stuff telling me WHAT DefaultDependencies is, but nothing I can
> >> understand that tells me WHERE it goes.
> >>
> >> Thanks,
> >> Cheers,
> >> Wol
>