I just bought a new laptop with ubuntu installed on it. When i first turned on the laptop ubuntu started with an error and restarted. Then when it turned on again i only had the guest session option. I've tried, but i can't use sudo in the terminal: Sudo: unable to change to root gid: operation not permitted Sudo: unable to initialize policy plugin I tried the recovery path too, but i don't have a username and can't do anything. I can only go in guest session. Please help, sorry if this is something obvious to do, it's my first time opening ubuntu.

  • Possible duplicate of how to reset a lost admin password? – user68186 Feb 15 '18 at 15:01
  • 1
    @user68186 I don't believe the questions are duplicates (They may be similar). According to the OP, in this case, the user isn't created. – Dan Feb 15 '18 at 15:10
  • @Dan retracted. I am keeping the comment in case it helps others. – user68186 Feb 15 '18 at 15:42

reset root password :

While boot press shift and choose recovery mode :

drop to root shell then use following commands :

mount -o rw,remount /
passwd root

to add new user use :

adduser username

and choose a password for the user



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.