Got the same problem on Ubuntu 12.04 when running as user:
But if I run this as root, all works good. Reinstalling isn't help.
$ udisks --dump
(udisks:8121): udisks-WARNING **: Couldn't connect to system bus: 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.
elvis_ef, did you find any solution for this problem? Is this command work from root user on you compute?