[trisquel mini] [feature request]: Add the d-i/Netinstall (also called "debian-installer") text-mode installer

Request

Implement the d-i/Netinstall (also called "debian-installer") text-mode installation option in Trisquel Mini.

Rationale

1. Flexibility: Allows installations on systems with limited graphical capabilities.
2. Customization: Provides advanced users with greater control over the installation process.
3. Consistency: Aligns Trisquel Mini with the main Trisquel distribution, which already offers a text-mode installer.[1]

This feature would enhance the versatility and appeal of Trisquel Mini for a wider range of users and use cases.

References

1. Trisquel 11.0: "d-i/Netinstall (also called "debian-installer") is the text-mode installer for Trisquel, which allows for advanced and custom installations, often used for servers. After Ubuntu dropped support for this installation method, we stepped in to add any removed pieces and make it functional again, often from upstream Debian sources."