Mount Harddisk drives without Password Authentication in Ubuntu

We know that, after each and every restart of ubuntu, if we have to mount harddisk drive, Ubuntu password manager asks for password. Once or twice, we can enter password but not after each and every restart.

Is there any solution for this? Yes. Solution exits :P :)  Solution is as given below.

Open the terminal.(Applications-->Accessories-->Terminal)

Paste the below code.

sudo gedit /usr/share/polkit-1/actions/org.freedesktop.devicekit.disks.policy

New windows will pop up. Search for
<action id="org.freedesktop.devicekit.disks.filesystem-mount-system-internal">

<description>Mount a system-internal device</description>

<description xml:lang="da">Montér en intern enhed</description>

<description xml:lang="de">Eingebautes Gerät einhängen</description>

<message>Authentication is required to mount the device</message>

<message xml:lang="da">Autorisering er påkrævet for at montere et fil system</message>

<message xml:lang="de">Zugriffsrechte werden benötigt um das Gerät einzuhängen</message>

<defaults>

<allow_any>no</allow_any>

<allow_inactive>no</allow_inactive>

<allow_active>auth_admin_keep</allow_active>

</defaults>

</action>

Here, u can see auth_admin_keep.  Just replace "auth_admin_keep" by "yes"(without double qoutes). And save the opened file.
After this, u can mount harddisk drives without entering password. Isn't this simple and easy? :P :)