Nautilus does not mount usb storage automatically
devices are recognized and can be mounted using mount command (see Ubuntu 12.04 stopped suddenly to recognize all usb storage.) but are not automatically mounted.
using Ubuntu 12.04 on dell Lattitude E-6420.
Solution 1:
gconf-editor may be the wrong tool now. dconf-editor is the new favorite :-)
So open dconf-editor and navigate to
org.gnome.desktop.media-handling, where you will find at least two entries:
- automount
- automount-open
Check the first one to mount media automatically and the second one to open a nautilus-window with the already mounted media.
You can find additional information about dconf/gconf in the answer to Can I use dconf-editor to modify Gconf settings?