When a mounted USB stick is manually unplugged (without unmounting it) the device name in /dev (e.g. /dev/sda ) is somehow reserved, plugging it on again will yield on my system the alphabetically next device name (e.g. /dev/sdb). Is there a way to make Linux reuse the device file? 'umount'ing the unconnected device doesn't help. Any explanation whats going on there?