I can su root, but can not log in as root?
64026
How to enable ssh root access on Ubuntu 14.04
105082
How do I boot into a root shell?
121883
Cannot login to my user account
50116
adb shell su works but adb root does not
101917
I run a command sudo startx and then I can only log in as a guest
82978
Why can `root` run any command as any user without providing password?
39109
Trying to ssh root, why get permssion denied in 16.04?
47414
Can't login even with password Linux ubuntu
71212
login and su internals
52991
How do I run a command as root?
3716
How do I add myself back as a sudo user?
4382
What is the default root password?
15361
How to run Terminal as root?
53868
How to change the forgotten root password?
40667
How do I gain root privileges?
50005
Unable to log in to my system
67698
What is the root user