Can't login to root using `sudo su`
47738
Error after sudo-ing "sudo: must be setuid root"
75827
When I run a sudo command it says unable to resolve host
136007
How to enable root login again after changing password?
121883
Cannot login to my user account
50436
How to log commands within a "sudo su -"?
58819
Sudo not available in guest login
20355
Sudo is also user login password - why? how to change?
137008
How do I run a sudo command needing password input in the background?
67021
Access denied for user 'root@localhost' (using password:NO)
34852
What's the difference between sudo su - and sudo su --
109370
Password not working in Graphical Applications (gksu)? Works with sudo
130082
How to change root password in ubuntu?
105082
How do I boot into a root shell?
125940
sudo with password in one command line?
132149
How do I run terminal in sudo mode?
121291
SSH login as root fails, but I'm sure I entered the right password
136771
Why is sudoers NOPASSWD option not working?