root password

[Adam Funk]

On 2007-08-21, Paul Schulz wrote:

> The default install (server or otherwise) does not set a default root password.
> Login to the system as the user that was setup during the install, and
> use the following command to change to the root user:
>
>  > sudo su -i
>
> It will prompt for the user password.

What are the practical differences between `sudo -s` and `sudo su -i`?