The second partition which is the / partition has been created. The device name is /dev/sda2. Now we are going to create the third partition for Ubuntu desktop. The mount point remains are the /home directory, /usr/local/ directory and /var directory. You can choose whatever mount point that you already planned. In this example, we are going to create a partition for the /home directory. Ubuntu desktop uses a normal user account by default, so assign an independence partition for /home directory is a good choice. What I mean is all users' home directory in Linux is created by default in /home directory except for root user (administrator) which has separate directory called /root. By creating a dedicated partition for /home directory, we don't have to worry about data missing each time we upgrade Ubuntu.

If you ask what is the right partition size for /home directory, nobody can give you the exact size. It depends on your hard disk space and the usage of your Ubuntu system. As mention earlier, you would be using a lot of /home directory space with Ubuntu desktop. So give a large possible space for /home directory is recommended.

Click on the free space and then click the New partition button to create the third partition.