How do I fix sudo command not found in Ubuntu? Hold down Ctrl, Alt and F1 or F2 to switch to a virtual terminal. Type root, push enter and then type the password for the original root user. You’ll receive a # symbol for a command prompt. If you have a system based on the apt package manager, then type apt-get install sudo and push enter.
How do I fix sudo not found? To achieve this, log in or switch to root user and use the APT package manager to update the system package list. Then install sudo as shown. When prompted to continue. hit ‘Y’ to proceed.
Why sudo is not working in Ubuntu? Boot back into normal mode. If that doesn’t work and you still have problems with permissions, then you’ve broken your system and a simple fix for the sudo command won’t fix anything – you’ll need to reinstall your machine.
Can not run sudo command? you need to edit /etc/sudoers using a proper user with admin rights, so su cat /etc/sudoers and/or su nano -w /etc/sudoers to edit it and add the user. Until they are properly added you will have to use su and enter the root password to get access.