You must set a root like your user and set a custom password, but you only get a “Linux console” at this way you may need to install a graphic user interface or Linux desktop to try the whole experience.
In clearlinux, the root password is not set by default. However, if you login on the console with root, it will allow you to set a root password immediately, thus securing the system.
The graphical installer has methods to make normal and sudo users, avoiding this need. For VM images however, this is the used method.