Sometimes you can’t give someone the root password but you he/she must have root access. You can follow this steps to create a additional root account:
Add a new user:
# useradd newuser
Set a password for the new user
# passwd newuser
Once done, edit the ‘passwd’ file
# nano /etc/passwd
set the UID:GUD bits to 0:0. Say for example the new user is ‘newuser’, the line should look like
newuser:x:0:0::/home/newuser:/bin/bash