# The Root Account and the `sudo` and `su` Commands The *Troubleshooting Guide* assumes that you are logged in to Photon OS with the root account and running commands as root. The `sudo` program comes with the full version of Photon OS. On the minimal version, you must install `sudo` with tdnf if you want to use it. As an alternative to installing `sudo` on the minimal version, you can switch users as needed with the `su` command to run commands that require root privileges.