This question already has an answer here:
I currently run Windows 7 on my 1 TB hard drive, but also have a spare 320 GB hard drive. I have a USB with Ubuntu 13.04 loaded on it, and my goal is to have Windows 7 on the 1 TB hard drive and Ubuntu on the 320 GB hard drive. I know you are supposed to somehow set up partitions so that Ubuntu can install properly, but I don't know what the partitions should be and how big they should be. Please advise on how I should install Ubuntu on the hard drive. Thanks.