When I got my new MacBook Pro I upgraded the hard drive and ever since doing that, I noticed that boot times were incredibly slow. I thought it was odd so tried to track it down. What I found is that the “Startup disk” option wasn’t picking up the new drive, so it was trying to find the original drive to boot from that. So what I did was go to “System Prefences => Startup Disk” and select my drive. Now when I boot, it’s really quick!

Just a quick tip for anyone else who might have the same problem.