Bug 5144

Summary:	when use systemd, "systemctl --user" can not print out expected info
Product:	[Build System, Metadata & Runtime] OE-Core	Reporter:	LiRongQing <rongqing.li>
Component:	core	Assignee:	Ross Burton <ross.burton>
Status:	RESOLVED NOTABUG	QA Contact:
Severity:	normal
Priority:	Medium	CC:	meta.mr.watcher, meta.watcher
Version:	1.5
Target Milestone:	1.5 M5
Hardware:	x86
OS:	Multiple
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	Don't know

Description LiRongQing 2013-09-09 09:34:43 UTC

1. enable systemd when building image

VIRTUAL-RUNTIME_init_manager = " systemd "
DISTRO_FEATURES_append = " systemd"
DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"

2. run command as below
root@qemux86-64:~# systemctl --user
Failed to get D-Bus connection: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
root@qemux86-64:~#

Comment 1 Ross Burton 2013-09-10 10:04:13 UTC

That tells systemctl to display the state of the current user session, and it can't find one because $DBUS_SESSION_BUS_ADDRESS isn't set and the fallback of autolaunching using $DISPLAY doesn't work because that isn't set also.

If you've already started a user session then you'll need to set one of those variables so that systemctl can find the user session you're after.

However, are you attempting to *start* a user session using systemd?  If so, then you need to use "/usr/lib/systemd/systemd --user".

Closing notabug as this isn't a bug.