How to mount disks of a Samsung Galaxy in a Linux System (connected with a USB cable)?
Go to Settings -&gt; About phone -&gt; USB Settings and set it to Mass Storage.  You may also need to enable or disable Settings -&gt; Applications -&gt; Development -&gt; USB debugging.  The drives should be visible to the PC when you connect the device, but you should also have to click the USB notification you mention and tell it to actually mount the storage to PC so that they are accessible.  Finally, try looking at this for more info: http://androidforums.com/android-lounge/115574-solved-cannot-mount-android-device-via-usb-linux.html