hard drive not being recognised. might have deleted ms security sector

[garde2k10]

so i was swapping my original 250gb xbox hdd from my retail xbox to my rgh. but all of a sudden its not being recognised on my retail, but yet its recognised on my rgh and my pc. im guessing i have deleted, or it somehow magicaly deleted itself. the microsoft security sector or something? saw this on another forum on here or xpg or se7en sins or something along the lines. and it said that the ms security sector is probably erased . help me pleaase

 

[InsaneNutter]

On your Jtag if you go in to the memory section of the dashboard where you can manage your content when you move over the hard drive it should have a little "Microsoft" logo next to your storage device.

If thats not there then the security sector has probably been erased.