Comment 38 for bug 79274

Also still having this problem. Xubuntu (feisty)

update-manager 0.53.3
python-dbus 0.80.1-1

Works fine with sudo but not as regular user.

Error reads as follows:

[d@wizardry:~]% update-manager
Traceback (most recent call last):
  File "/usr/bin/X11/update-manager", line 86, in <module>
    app = UpdateManager(data_dir)
  File "/usr/lib/python2.5/site-packages/UpdateManager/UpdateManager.py", line 300, in __init__
    self.setupDbus()
  File "/usr/lib/python2.5/site-packages/UpdateManager/UpdateManager.py", line 440, in setupDbus
    '/org/freedesktop/UpdateManagerObject')
  File "/var/lib/python-support/python2.5/dbus/_dbus.py", line 412, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 232, in __init__
    _dbus_bindings.UInt32(0))
  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 171, in __call__
    reply_message = self._connection.send_message_with_reply_and_block(message, timeout)
dbus.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UpdateManager was not provided by any .service files

When run as sudo/root:

warning: could not initiate dbus