update-manager crashed with DBusException in _run(): org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
I noticed that Synaptic showed the packages ure and ure-dbg with an exclamation mark. I started UpdateManager and asked it to update. A few moments later a message appeared that UpdateManager has crashed.
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.17
Uname: Linux 3.0.0-10-server x86_64
Date: Sat Sep 17 03:25:34 2011
InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
ProcCmdline: /usr/bin/python /usr/bin/
PATH=(custom, no user)
Title: update-manager crashed with DBusException in _run(): org.freedesktop
UpgradeStatus: Upgraded to oneiric on 2011-08-28 (19 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare