Week four and all so quickly. We better then take a walk into the filesystem. In doing so we are going to learn how to use fdisk to create partitions from the command line in Linux. We will create an extended partition and, then, logical partitions with in that. Using mkfs. and TAB TAB; we will learn the formating tools at hand to create filesystems. Using mkfs.ext4 to format the partition and umount to mount it. We we investigate tools like ls- lh and df -h to view filesystem usage and rsync to duplicate the filesystem. Finally we will edit the /etc/fstab file to make out mounted filesystem permanent. Is that enough ?