Ubuntu – not in sudoers file – ONCE AND FOR ALL !
Yeah I feel your pain indeed…
- restart the computer
- hit SHIFT key if you don’t see GRUB on startup
- choose recovery in the menu
- go to shell if not yet there
- dont edit the sudoer file, check that @includedir /etc/sudoers.d is not commented
cat /etc/sudoers
- add a file to that folder (no dots in the filename, make it simple)
nano /etc/sudoers.d/yourusername
- add this line to the file
yourusername ALL=(ALL) ALL
- change the permissions
chmod 0440 /etc/sudoers.d/yourusername
- reboot
You’re welcome…