Now that you know what the overall goal is, how do you get from here to there? First, understand that if you have a computer running Windows 7, that Windows 7′s boot manager is responsible for making sure that the system boots. Installing Ubuntu on the same hard drive throws another boot manager into the mix, so the most important decision you are going to make about this, is which boot manager (Windows 7′s boot manager or Ubuntu’s) do you want to be responsible for primary boot operations?