What is the root password for raspbian jessie or debian 9
From the offical documentation:
User management in Raspbian is done on the command line. The default user is
pi, and the password is
You won't normally log into the computer as root, but you can use the
sudocommand to provide access as the superuser. If you log into your Raspberry Pi as the
piuser, then you're logging in as a normal user. You can run commands as the root user by using the
sudocommand before the program you want to run.
You can also run a superuser shell by using
sudo su. When running commands as a superuser there's nothing to protect against mistakes that could damage the system. It's recommended that you only run commands as the superuser when required, and to exit a superuser shell when it's no longer needed.