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How do I set a DCO on a hard drive over USB?

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http://superuser.com – I dropped my hard drive (a 320 GB WD Scorpio Blue, model number WD3200BEVT) and I want to create a Device Configuration Overlay over the bad sectors. The highest LBA on the drive is 6xxxxxxxx , and the bad sectors start around 4xxxxxxxx; I figure I can use around 210 GB of drive. I purchased and installed a new Seagate notebook drive, and connected the old, damaged drive via USB. I copied my files off the damaged disk. In the olden days, I could create a DCO using HDAT2. As a test, I tried to remove a preexisting DCO, but I couldn't remove it with HDAT2. I was able to remove it with Ubuntu (HowTos)