Sorry, but this is incorrect. Installing becomeroot accomplishes the same thing without the hassle of flasher. The rest involve editing suders to include user, which is a mildly difficult and time consuming process.

I don't disagree, but this isn't the place to have a discussion of that sort. Unless you're really just interested in confusing the newbies. . . .

This is incorrect, sudo is a command to execute the command that follows it as another user (generally the superuser).

This is only half right, yes, you can only use sudo after adding user to sudoers, but the becomeroot package allows you to gain a rootshell with the command sudo gainroot.

Please try not to spread incorrect information in a newbie howto thread. If you really want to have this discussion, take it elsewhere.