How to Reset New Root Passwd or Fix Broken Sudo.......
Errors that you are getting..........
Error 1:- you may notice an error saying you're not in the sudoers file and the incident is going to be reported.
Error 2:- sorry user usuario is not allowed to execute '/usr/bin/passwd root' as root on.
Cause and symptoms :-
the /etc/sudoers file has been altered to no longer allow users in the admin group to escalate privilege
the permissions on the /etc/sudoers file are changed to something other than 0440 a user who should not have been has been taken out of the admin group.
By above error and cause can be done by following steps.....
To Reset Root Passwd
step1 :- Restart your server or desktop
step2 :- press continue shift untill boot menu show
step3 :- select ubuntu generic second option press Enter
