Ugh: block.device = '/dev/sdc1' (string) volume.fsusage = 'partitiontable' (string) This should be 'filesystem'. Can you please get a hal debug output, as described on the second half of https://wiki.ubuntu.com/DebuggingRemovableDevices ? -- usb key is not mounted automaticaly (feisty) https://launchpad.net/bugs/86292