Hello Everyone, <br /> <br />How to Reset New Root Passwd or Fix Broken Sudo....... <br /> <br />Errors that you are getting.......... <br /> <br />Error 1:- you may notice an error saying you're not in the sudoers file and the incident is going to be reported. <br /> <br />Error 2:- sorry user usuario is not allowed to execute '/usr/bin/passwd root' as root on. <br /> <br />Cause and symptoms :- <br /> <br />the /etc/sudoers file has been altered to no longer allow users in the admin group to escalate privilege <br /> <br />the permissions on the /etc/sudoers file are changed to something other than 0440 <br />a user who should not have been has been taken out of the admin group. <br /> <br />By above error and cause can be done by following steps..... <br /> <br />To Reset Root Passwd <br /> <br />step1 :- Restart your server or desktop <br /> <br />step2 :- press continue shift untill boot menu show <br /> <br />step3 :- select ubuntu generic second option press Enter <br /> <br />step4 :- then select root shell press Enter <br /> <br />step5 :- type mount -o rw,remount / <br /> <br />step6 :- sudo passwd root <br /> <br />Thanking You <br />Hope U Like it....