Some users may need specific support because of e.g. some visual impairment. Most accessibility features have to be enabled manually. Some boot parameters can be appended to enable accessibility features. Note that on most architectures the boot loader interprets your keyboard as a QWERTY keyboard.
The Debian installer supports several front-ends for asking questions, with varying convenience for accessibility: notably, text
uses plain text while newt
uses text-based dialog boxes. The choice can be made at the boot prompt, see the documentation for DEBIAN_FRONTEND
in Avsnitt 5.3.2, ”Parametrar för Debian Installer”.
Some accessibility devices are actual boards that are plugged inside the machine and that read text directly from the video memory. To get them to work framebuffer support must be disabled by using the fb=false
boot parameter. This will however reduce the number of available languages.
For users with low vision, the installer can use a high-contrast color theme that makes it more readable. To enable it, append the theme=dark
boot parameter.
Alternatively, Debian can be installed completely automatically by using preseeding. This is documented in Appendix B, Automatiserad installation med förinställningar.
Documentation on accessibility of the installed system is available on the Debian Accessibility wiki page.