[systemd-devel] Spurious failures starting ConnMan with systemd

[Simon McVittie]

On Tue, 15 Nov 2016 at 16:02:07 +0100, Daniel Wagner wrote:
> commit 09aa0243aac40ec4e5bd0fbe41e702be4952a382
> Author: Patrik Flykt <patrik.flykt at linux.intel.com>
> Date:   Thu Sep 17 10:42:46 2015 +0300
> 
>     connman.service: Fix dependencies for early boot
>     
>     Unset default dependencies in order to properly run at early boot and
>     require the save directory to be mounted before starting.
>     
>     See the systemd.unit man page, Debian's wiki page
>     https://wiki.debian.org/Teams/pkg-systemd/rcSMigration and the upstream
>     systemd-networkd.service file for details.

dbus-daemon is not (currently) designed to be usable as an early-boot
service. You cannot be an early-boot service and depend on D-Bus - you
don't get to "have your cake and eat it".

See also
https://bugs.freedesktop.org/show_bug.cgi?id=98254 and
https://bugs.freedesktop.org/show_bug.cgi?id=89847

Especially these comments:
https://bugs.freedesktop.org/show_bug.cgi?id=98254#c6
https://bugs.freedesktop.org/show_bug.cgi?id=98254#c8

(#c6 explains the significant feature work that would have to happen in
dbus-daemon to make it a viable early-boot service.)

Regards,
    S