Yes the title says it all. Ubuntu has no root user by default. Well at least that is what they tell there users. There root user is still there, just locked out with no password. Also, apparently there are some applications that don’t understand root after you enable it that or they need a password less root account. While this can be good for new users, it still introduces a unique position for many people and also it can make recovery of the system much harder.

**Update**