Linux operating system for visually impaired and blind.

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How to install it



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Linux operating system for visually impaired and blind.
This project launched by the association Nâga will continue to expand thanks to your participation! Please send us your comments, tips and advices through the forum.
If you want to communicate about this project or if you want to translate this page, please, use also the forum !

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Latest version :

All versions :

You need to download the lastest version of the iso


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How to install it

If it is too technical for you, please do not hesitate to ask questions on the forum !
  • Once downloaded, you need to create a bootable USB stick or to burn the DVD as an ISO
  • Insert the bootable USB stick or the DVD in the computer and boot on it
  • Install the system

Once installed, it will be in English ! Here are the steps to use it in another language and / or keyboard and / or formats for date and time and / or change the download source:

The password is ubuntu
  • Go to “Applications” (top left of the screen or with Alt + F1) / “System tools” / “Ubuntu Software Center”.
  • Go to “Edit” / “Software Sources” / “Download from” and select a server from your Country (In “other”, you can use “Select best server”.)
  • Then go to “Applications” / “System settings” / “Region and language”.
  • Go to “Input source” / click on + and add your keyboard
  • In “Formats” / Choose your date / time format
  • Finally, go to “Applications” / “Utilities” / “Terminal” and enter the command

sudo apt-get -y install `check-language-support -l INSERT_LANGUAGE`

Instead of INSERT_LANGUAGE replace by the code fr for french, es for spanish, de for german…
  • Reboot and it should be done !


When using Linux, the key with the Windows® logo on it is called super

Apart from the usual software shortcuts, the system uses the ones listed below. .

Alt + F1 Go to softwares, file, date / time, volumes to mount …
Alt + super + s Enable / disable the screen reader
Alt + super + Esc Panel to turn off the computer
Alt + super + 8 (eight which is not on the numeric keypad) Enable / Disable Zoom
Alt + super + = Zoom in
Alt + super + 6 Zoom out
super Softwares and files / folders search
Escape Exit the current menu
Ctrl + q Close software

To eject external media (USB key, hard drive … ) use the dropdown menu key.


Alt + F1 shortcut

This shortcut allows immediate access to softwares, files, date / time, volumes to mount

We navigate from one to another by means of the right and left arrows.

We enter in the choosen selection by using the down arrow.

  • Software navigation

We browse categories (“Internet”, “Office” …) using the up and down arrows. Once you selected the wanted category, the right arrow is used to select the software included in the category.

Super shortcut

This key gives access to a search bar from which you can browse softwares / files and folders. Use the tab key or arrows to select the one you want.

You validate your selection with the space bar or the enter key.

Example: type internet to call the web browser.

Project presentation

A friend (Didier) wanted to get a computer, we decided to carry this project which aims to make a free operating system usable by visually impaired and blind but also for people who see.

In France, it is possible to obtain financial help from the “MDPH” (Maison Départementale des Personnes Handicapées) to get an expensive proprietary software that includes only two updates.

The purchase of the computer and the additional cost to purchase of the software is at the charge of the person.

On an economical point of view this is difficult for a person and furthermore represents quite a cost to the taxpayers.

So we asked the "MACIF" foundation who agreed to support us financially for this project.

We also carry partially this project on voluntary basis.

B-Linux Adaptation

The password is ubuntu

0.1 Version

Operating system

We are using Ubuntu Gnome, because of the job done on accessibility.

We chose Ubuntu 14.04.2 LTS, 64 bit. The LTS versions has long-term support (3 years).

We downloaded it there:


  • Locked to the actual LTS
  • Updates every 2 weeks

Installed softwares

Remastersys works well to generate the backup but you have to change a part of the script so that you get the network. To do so remove resolv.conf in remastersys script:

sudo gedit /usr/bin/remastersys

the following line:

rm -f $WORKDIR/dummysys/etc/resolv.conf,hosts,hostname,timezone,mtab*,fstab

replaced by:

rm -f $WORKDIR/dummysys/etc/hosts,hostname,timezone,mtab*,fstab

(Source :

Configuration done

In “Firefox” / “settings”:

  • “Preferences” / “content” tab: To change the size and font color.
  • “Preferences” / “content” tab / “colors”: uncheck “allow web pages to use their own colors, instead of my selections above”
  • Addons ⇒ Adblock Plus
  • Homepage
  • Shorcuts to the website and the forum

In “Show applications”:

  • “Tweaktool” / “Fonts” / “Scaling factor”
  • “Tweaktool” / “workspace” / single workspace
  • “Tweaktool” / addons activated: “Applications menu” / “Places status indicator” / “Removable drive menu” / “Window list”
  • Change the wallpaper and put a solid color (“applications” / “background” / “colors”)

In “System settings” :

  • “Brightness and lock” / Lock screen saver.
  • “Brightness and lock” / disable password request when coming back from standby
  • “Universal access” / activation of “high contrast”
  • “Universal access” / activation of “large text”
  • “Universal access” / activation of the “zoom”
  • “Universal access” / activation of the “screen reader”
  • “Universal access” / “Emit a bip whenever Maj and Verr.Num. are used”

Use of icon sets:

SVOX Pico used with Orca

Pico is an open source speech synthesis software that can be used with Orca. It greatly improves the default voice. Pico is now available in the repositories as “libttspico”.

  • Install libttspico0 and libttspico-utils
  • Then change the line DefaultModule in speechd.conf file located in /etc/speech-dispatcher/ for:

DefaultModule pico-generic

and uncomment a line in the section of the modules:

AddModule "pico-generic" "sd_generic" "pico-generic.conf"

(Source :

Some languages are not available with pico-generic !
In this case, DefaultModule pico-generic should be replaced by DefaultModule espeak
AddModule “pico-generic” “sd_generic” “pico-generic.conf” should be commented (with a # before)


-* Braille Handbook printing (with 3d printers)
-* Create icons which do not have highcontrast
-* Video showcase
-* Add screenshots
-* Add software to control the computer with the voice
-* Next Version : add odt2braille on LibreOffice