That is, an installation not handled through the GUI.
The text installation mode is only available on Unix platforms. It will be automatically used if no graphical mode is available (for example, when running the installer on a server without an X-Window installation). You can also force a text-based installation in those platforms using the
--mode text option from the command line:
sample-installer.bin --mode text
If you use this option in Windows, the installation will be performed in unattended mode.