DBUS doesn't start - Could not get UID and GID for username

Question

Hi.
Today i installed Archlinux in other of my systems, but i have a problem. I installed the last dbus (dbus 1.4.16-1) and i putted it in my rc.conf:
DAEMONS=(syslog-ng @network crond dbus alsa)
but it doesn't start.
The error is:
Thu Apr 5 23:03:36 2012: :: Starting D-BUS system messagebus [BUSY] Failed to start message bus: Could not get UID and GID for username "dbus"
Thu Apr 5 23:03:36 2012: [FAIL]
So, i don't know what happen. In my other systems, i don't have any problem, only with this fresh install.
Googling i found this solution from Chakra's wiki:
Could not get UID and GID
If you get the following error while starting DBUS:
Failed to start message bus: Could not get UID and GID for username "dbus"
then add the user like so:
# groupadd -g 81 dbus
# useradd -c 'System message bus' -u 81 -g dbus -d '/' -s /bin/false dbus
If i do this, can i funk my system?
Edit:
That solution works well. I don't kown if in the future maybe i'll have some problem.
Should i mark this post like "Solved"? Still i don't know what was the real problem.
Last edited by superchango (2012-04-06 14:08:34)

Answer 1

i'm out today and as i haven't completed setup yet i can't upload log to phone to post it all. 
the problem wasn't spotted until trying to set up NetworkManager and lightdm.
useradd and groupadd owned by shadow (4.1.5-4), it wasn't installed before dbus-core and avahi needed them though. not sure how install environment works, does it rely on installed version or installer versions?
installed filesystem (2012.2-4) //FIRST LINE OF FILE
/tmp/alpm_INcwzu/.INSTALL: line 2: usr/sbin/groupadd: No such file or directory
/tmp/alpm_INcwzu/.INSTALL: line 3: usr/sbin/useradd: No such file or directory
installed dbus-core (1.4.16-1)
installed xcb-proto (1.7.1-1)
installed xproto (7.0.23-1)
installed libxdmcp (1.1.1-1)
installed libxau (1.0.7-1)
installed libxcb (1.8.1-1)
installed kbproto (1.0.6-1)
installed libx11 (1.4.99.901-1)
installed dbus (1.4.16-1)
/tmp/alpm_ETrJQT/.INSTALL: line 2: usr/sbin/groupadd: No such file or directory
/tmp/alpm_ETrJQT/.INSTALL: line 3: usr/sbin/useradd: No such file or directory
// INFO ON ADDING AVAHI TO RC.CONF
installed avahi (0.6.31-1)
// LOTS OF SUCCESSFUL PACKAGES
installed shadow (4.1.5-4)
// MORE SUCESS
installed mkinitcpio (0.8.6-2)
>>> Updating module dependencies
==> Creating gzip initcpio image: /boot/initramfs-linux.img
bsdcpio: Failed to set default locale
// REPEAT FOR FALLBACK, SAME ERROR
After that it's fine.