By default, the password for the user "root" (the system administrator) is locked. This means you cannot login as root or use su. Instead, the installer will set up sudo to allow the user that is created during install to run all administrative commands.
This means that in the terminal you can use sudo for commands that require root privileges. All programs in the menu will use a graphical sudo to prompt for a password. When sudo asks for a password, it needs your password, this means that a root password is not needed.
To run a command which requires root privileges in a terminal, simply prepend sudo in front of it. To get an interactive root shell, use sudo -i.
By default, only the user who installed the system is permitted to run sudo. To add more administrators, i. e. users who can run sudo, you have to add these users to the group 'sudo' by doing one of the following steps:
The benefits of leaving root disabled by default include the following:
Although for desktops the benefits of using sudo are great, there are possible issues which need to be noted:
This is not recommended!
To enable the root account (i.e. set a password) use:
Afterwards, edit the sudo configuration with sudo visudo and comment out the line
to disable sudo access to members of the sudo group.