Change MAC OS X Lion User shortname or home directory

First you will need to enable theroot user, to do this following the instuctions in my post

To change the user shortname and or the home directory of a user in OS X Lion use the following instructions:

  • Logon as root
  • Using Finder, browse to the /Users directory
  • Rename the home directory (highlight it, and press the Return key.  Now enter the new name)
  • Now open System Preferences
  • Select Users and Group
  • Unlock the padlock
  • Select the user and right click
  • Select Advanced options
  • If you want to change the shortname, edit the Account Name field
  • Now Change the Home Directory field, to point to your renamed folder.