How to hide mounted partitions and devices from Unity Launcher via Command Line?

I've checked and read similar questions, but most of the answers requires installing either dconf-tools, CCSM or MyUnity.

In Ubuntu 12.04, is there a way to hide mounted partitions or devices from the Unity Launcher without the need to install the aforementioned tools? Is this possible via terminal or command line?

From terminal:

• Hide mounted partition or devices:

    gconftool --set /apps/compiz-1/plugins/unityshell/screen0/options/devices_option  --type=int 0
  

• Show mounted partition or devices:

    gconftool --set /apps/compiz-1/plugins/unityshell/screen0/options/devices_option  --type=int 1
  

You can install Myunity, wherein select the option from the Show Devices Menu from Launcher Menu Tab as here.