by Jonathan Simms on Tue Dec 16, 2008 3:59 pm
Mary,
I am assuming the home directory is originally on the root partition so there is no reason to unmount. I believe that what is being asked is that you transfer your existing home directory to the new home directory on the partition you just created then you delete your old home directory; afterwards modifying your /etc/fstab to reflect that the new home directory is on the partition you created, lastly you can issue a partprobe at the command line to reflect the changes you have made.