I've got a 2011 Mac mini (no optical drive). I purchased a Seagate Momentus XT drive to replace my current HDD. I'm using my MacBook to download Lion so that I can make a USB installer to put Lion on the new drive. I've been told my new drive needs to be partitioned prior to installing Lion but I have no way of doing so as the mini doesn't have an optical drive and I do not have an external. Does anyone know if the new drive comes pre-partitioned or if I need to do so prior to installing Lion? I think I'm screwed. Thanks in advance.