While it’s not every day that you need to add a new hard drive to your computer, the task does not have to be complicated. Use this guide to help you install a new hard drive with an existing Ubuntu system, and partition it for use. Before beginning, you need to consider for what you will be using the hard drive.

• Will the drive be used only with Ubuntu?
• Will the drive need to be accessible from both Ubuntu and Windows?
• How do you want to divide the free space? As a single partition, or as several?

This guide goes over procedures for a single partition drive install only. Multiple partition drive installations are not very hard, and you may very well figure it out by using this guide; however, make sure you add an entry in /etc/fstab for each partition, not just the drive.

Source: InstallingANewHardDrive – Community Help Wiki