Comment 3 for bug 742751

To reproduce, configure udev to remove all permission bits from the device file. This is described on my webpage: http://wirespeed.xs4all.nl/mediawiki/index.php/Figuring_out_udev_rules#Assigning_a_raw_disk_to_a_specific_user

 $ ls -l /dev/sdj1
 b--------- 1 root root 8, 145 2011-03-26 09:05 /dev/sdj1
 $ udisks --mount /dev/sdj1
 Mounted /org/freedesktop/UDisks/devices/sdj1 at /media/6a8ce615-cb88-46be-a068-0f58aacb7d60
 $ ls -l /media/6a8ce615-cb88-46be-a068-0f58aacb7d60/
 total 108
 drwxr-xr-x 2 root root 4096 2011-03-25 22:30 bin
 drwxr-xr-x 3 root root 4096 2011-03-25 22:43 boot
 drwxr-xr-x 2 root root 4096 2011-03-2.......