Next, we're going to specify to use the new home partition as /home:
sudo cp /old/etc/fstab /old/etc/fstab_backup
sudo nano /old/etc/fstab
You'll then be taken to the nano text editor. Add in this line:
/dev/hda7 /home ext3 nodev,nosuid 0 2
Then save (Control-X), confirm (Y), and exit (Enter)
After you reboot, you should be now using your new /home partition.
If you find that you are running out of room on your old partition and you're pretty confident everything is working as it should be, then go ahead and delete the backup of home: