When I plug in an iPod into a machine running Ubuntu, the iPod auto-connects, but is not actually mounted. This is especially problematic when I am running under i3 or other window manager which does not have a system tray or other mechanism for listing connected devices.
Turns out it is easy to disconnect:
sudo eject /dev/sdb1
Season the device path as appropriate for your system. I typically find the device name by looking through /var/log/messages for the USB messages for when I connect the iPod.
