I bought a used Macbook on Craigslist last year for my cousin. He lost it, believes it was stolen. Didn't get any paperwork with the laptop and didn't write down the serial number. Now I need to find the serial number to file a police report. I replaced the hard drive a few months ago and cloned the old HD before changing it, so I still have everything that was on the old HD. So the question is: Where might I look on the cloned HD for the serial number of the missing laptop? Would it be somewhere in the user library? Or can you only access it when the physical laptop is present?