Harmony posted

su: Authentication failure


(base) :~$ su
Password: 
su: Authentication failure

than i try


(base) :~$ sudo -i
sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

how to solve this Authentication failure error?

oh dear , i think you tried to change permission 777 to recursive manner.


sudo -i

the root account is blocked by default in Ubuntu, and there is no root password.set the password by above command

Post Answer

OMG! You need to Login / Register to Post Answer

[code] Bold LE LP LD LW LDR WAR INF DAN SUC FYI h2 h3 italic