Get a stable copy for a PRODUCTION ENVIRONMENT

From the Internet

Probably for most people interested about getting a copy of DebianEdu / Skolelinux the fastest way will be to download it from the Internet and burn it to a cd, dvd or usb memory stick. Images are large so if you have a slow connection, consider using a download manager. They typically enable you to pause and recommence the download at convenient times and to resume a download that was interrupted.

Step 1: Choose an ISO

First of all, you need to know under which formats the isos are distributed. There are different options that vary in size and have a few differences between them, so lets clear any doubt before you start downloading anything.

What is a net install CD?

It fits a regular CD so this iso is the one that will download faster. It will fetch some packages from the CD and the rest from the Internet so, when installing you will need a connection. Additionally it allows you to choose between many graphical environments during the installation process (see ?DebianEdu/FirstInstallation page for a detailed explanation)

What is an USB stick image?

It takes more than 4.4 GB, so it will fit only on large usb memory sticks or double layer dvd's. This iso will take longer to download as it is a full offline installation than can be installed without requiring an Internet connection. Eventually it only ships with kde graphical desktop, so different graphical desktops will need to be installed after installation.
BEWARE!!! if you plan to administrate a DebianEdu network it is STRONGLY ENCOURAGED that you keep a dvd burned copy near you. Repositories are reliable and will almost never fail but even though, if you are responsible about maintaining a system up and running this can be a real life saver when worst situations arise.

What is a source DVD?

This iso contains any source code from any present software in the distribution. It is intended for developing purposes and is valuable if you want to adapt any software to your particular and specific needs.

Step 2: Download an ISO

Now you know the what, lets see where to find it and how to download it.

From Skolelinux server via http

The current stable version of DebianEdu / Skolelinux for production on any of its forms can be downloaded at:

Via rsync

If you already have a version of Skolelinux and want to download the latest one, you can and should use rsync because it finds what chunks of the file have been modified and only downloads those. For that reason, it's faster and helps us saving bandwidth. Run the following command on a terminal to update your ISO-image, where filename.iso is the name of the existing file on your disk:

net install ISO
rsync -avzP rsync://

rsync -avzP rsync://

source code ISO
rsync -avzP rsync://

From a mirror

If you are having problems accessing the main site, you can check the following mirrors:

Step 3: ¬°IMPORTANT! Verify checksums

When downloading software from the Internet it is essential to verify its checksums, specially when talking about a distribution. It is relatively common to download a corrupted image that once burned will not work or fail during install. That may occur because of undetected transmission errors when getting it from source server.
At worst case, it would be possible for a malware creator to inject a free piece of software with his own hidden code and distribute through Internet to unaware individuals that could install it resulting on a potential security breach. This problem can be solved by creating and verifying checksums and fortunately this procedure makes it almost impossible to adulterate software, but even thought technically not impossible

WARNING No matter where you download the iso, you should always verify checksums from the official distributor. In the case of Skolelinux, ONLY trust the checksums presented at

Using Windows

follow this tutorial

Using Linux

On most major Linux distributions you will only need to open a terminal and write:
sha1sum /path/to/where/the/iso/has/been/stored

It will generate a 40 numbers and character string. Compare the string you get at the terminal with the one present at:

If they equal, then everything is ok and you proceed to burn. If not, just download it again. If they still do not coincide, you should warn the maintainer of the site where you got it.

Step 4: Burn an ISO


Using Windows

follow this tutorial

Using Gnome

follow this tutorial

Using KDE

follow this tutorial

To a USB

Using Linux

Installation using USB flash drives instead of CD / Blue-ray discs Since the Squeeze release it is possible to directly copy the CD/DVD/BD .iso images to a USB flash drive (also known as "USB sticks") and boot from them. Simply execute a command like this, just adapting the file and device names to your needs:

sudo dd if=debian-edu-amd64-i386-XXX.iso of=/dev/sdX bs=1024

Depending on which image you choose, the USB flash drive will behave just like a CD or Blue-ray disc. Do not use Unetbootin or similar programs.

Order CD from a vendor

Get the latest CD sent by snail mail.

For those without a fast Internet connection, we offer to send you a CD for the cost of the CD and shipping

Send an email to cd (at)

Remember to include the address you want the CD sent to in the email.

Get an unstable copy for TESTING ENVIRONMENT

We are always working on what will become our next stable release. To be able to test these images we build new images several times a day (if any of our developers changes any of the content). You can help us by testing images on a spare PC or in a virtual setup. Any help is appreciated. :) Please note that these images are intended for testing only. Do not use these for production unless you know what you are doing!

Take a look at the appropriate folders at: