Jun 28, 2013  What’s the difference between being an
administrator user and root user on a Mac?  What can one do that
the other can’t, if anything?  This article might be of
interest.  Enabling and using the "root" user in Mac OS X
"About the root user  The user named "root" is a special user in
UNIX-style operating systems that has read and write privileges
to all areas of the file system. The root user should only be
used for specific administration or monitoring tasks. After
completing a task as the root user, you should log out of Mac OS
X and log back in using a normal or administrator account. You
should disable root access if you do not use it often.  The root
user does not appear in Users or Accounts preferences.
Important notes  Only the owner of a computer or its designated
administrator(s) should have an administrator account or the
root password. Any user with an administrator account can become
the root user or reset the root password. A root password should
be difficult to guess, containing bo