Ubuntu HAS no root user, by default. You use sudo or su using your OWN password to obtain rights.
This is partially wrong.
Ubuntu does have a root account, but the password is obscured. You can use "sudo su" to become root.
If you do a:
then enter the password
then enter the command
now type in your favorite password
then you got your own password
sudo bash - thank you. That worked beautifully.