# * Read and study this [http://tldp.org/HOWTO/Partition/fdisk_partitioning.html reading] about how to use the fdisk command before you go on to the next step.# * Review the man page for the fdisk command. {{Admon/important | Important/warning! | The following operation will erase the contents of your hard disk. If you have any useful data stored on your disk, you must back it up first or use another hard disk that does not contain useful data on it. Do not plan on sharing the hard disk with the Windows course! We will be doing lots of tasks that may cause you to lose your data.}}