Premiere HD in Roamio ?

I should get my Roamio Basic tomorrow. My question is...



I upgraded my Premiere to 2TB using the old method. I am no longer going to use the Premiere and I want to use the 2TB HD in the Roamio.



Can I just take it out and put it in the Roamio and live happily ever after, or do I need to format/clear it first?



All of the other threads I can find are starting from a new bare HD.



Thank you