[ubuntu] Is my HDD really dead?

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http://ubuntuforums.org – I had a windows 7 computer that stopped working suddenly and gave me a Disk Read error message. I could not access the HDD in the windows recovery environment so I attached it to my computer I have Ubuntu installed on. I cannot boot up Ubuntu with the drive attached to the SATA port. However, I got it started with the drive disconnected from the computer, and then hooked it up with a USB external case. Gparted and Disk Utility recognize the drive and show the partitions correctly. However, the partitions are listed as "Unrecognize" and there is no option to mount the volumes/dri (Hardware)