Premiere xl4 recovering drive

my hard drive on my XL4 is corrupted. I bought a new drive same size 2tb and run ddrive to copy the old to the new. After 2.5 days it's still copying up to 1.2tb very very slowly. Should I let it run for a few more days?
If not can I make a copy of my TiVo premiere on the new drive and plug into my XL4. Would that work? Do I need to do anything more like calling the cable company to pair with the cable card?

Thanks for the insight.