Learning the Mac OS X Terminal, Part 2
Subject:   Accessing ~root
Date:   2003-05-20 17:03:11
From:   chris_stone
Response to: Accessing ~root

Yes, that'll fix it. But from this error, it sounds like you're running 10.2, which has different permissions set for ~root than 10.1 (which this article was written for).

If you are using 10.2 or newer, you should not be following this tutorial, but these instead:

Hope that helps...