I'm trying to create a new user with root privileges from
visudo in order to log on the Ubuntu system.
When I run Ubuntu a dialog box appears with the name of a user, let's call it "Sr. X". If I click on "Sr. X" the system ask me for the password, which I don't know.
So I'm trying to add a new user with root privileges by running an Ubuntu image from a USB device. After locating the unit in which Ubuntu is installed, I mount it and type
chroot to turn the path of the Ubuntu image into the root directory.
So far so good, the problem comes when I try to add a new user by modifying
sudoers file using
User "Sr. X" doesn't appear - why is that? The only thing that appears is
root ALL=(ALL) ALL
Then, I add my user:
Myuser ALL=(ALL) ALL
save the changes and reboot the system. When I run Ubuntu, the same dialog box appears, only showing "Sr. X" again. I click on "login as another user", I put "myuser" into the dialog box and the system ask me for a password. What password should I write? I didn't add any password in the sudoers file. Can somebody help me with this?