I deleted my media hard drive from the device tree on webadmin. Hoping that on next reboot the system will redetect the hard drive and I can have it scan again for media.
Unfortunately folloing the rule # 1 still I dont not see message on any orbiter about the hard drive.
The drive is also not locked under unknown devices .
Never mind,, it got solved by following http://forum.linuxmce.org/index.php/topic,12505.0.html