[systemd-devel] [PATCH] dbus: fix --system handling

[Robert Schwebel]

On Tue, Oct 26, 2010 at 12:26:04AM +0200, Lennart Poettering wrote:
> Sorry for the delayed reply. Needed to think a bit about this.
>
> Your patch would break running "systemd --system --test" to verify the
> systemd setup as normal user, since that second instance would fight
> for the same socket as the main (PID 1) instance, and this hence would
> break.
>
> Note that we do not support booting a real system with systemd on PID
> != 1. The primary reason for that is that we need the SIGCHLD signals
> properly, and we only get those as PID 1. Early systemd versions
> supported a mode where we didn't rely on those signals. However, we
> removed that after a while, since I didn't see much benefit in this
> mode and I was unable and unwilling to keep this mode working and do
> the necessary testing.

Hmm, I'm trying to get systemd running with ptxdist, which means that I
have a system which is totally untested with systemd until now. So my
attempt was to run the system with init=/bin/sh first, then have the
possibility to test things manually, which turned out to be really
helpful, especially because it makes it possible to start systemd with
strace, in order to find out why it doesn't work (mostly because there
have been missing libraries on the system which was downsized a little
bit too much) :-)

So for system bringup, it would be really helpful to have the test mode.

rsc
-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |