http://wiki.centos.org/TipsAndTricks/BecomingRoot

[amyagi at gmail.com (Akemi Yagi)]

2009/7/10 Christoph Maser <cmr at financial.com>:
> In the sudo section please add "sudo -s" and "sudo -i" as ways to open a
> root-shell.
>
> Chris

You can go ahead and do it yourself.   :-D

Akemi