Chapter 3. Installation System

Table of Contents

3.1. What's new in the installation system?
3.1.1. Major changes
3.1.2. Automated installation

The Debian Installer is the official installation system for Debian. It offers a variety of installation methods. Which methods are available to install your system depends on your architecture.

Images of the installer for stretch can be found together with the Installation Guide on the Debian website.

The Installation Guide is also included on the first CD/DVD of the official Debian CD/DVD sets, at:


You may also want to check the errata for debian-installer for a list of known issues.

3.1. What's new in the installation system?

There has been a lot of development on the Debian Installer since its previous official release with Debian 8, resulting in both improved hardware support and some exciting new features.

In these Release Notes we'll only list the major changes in the installer. If you are interested in an overview of the detailed changes since jessie, please check the release announcements for the stretch beta and RC releases available from the Debian Installer's news history.

3.1.1. Major changes

Removed ports

New ports

Support for the 'mips64el' architecture has been added to the installer.

Desktop selection

Since Jessie, the desktop can be chosen within tasksel during installation, and several desktops can be selected at the same time.

New languages

Thanks to the huge efforts of translators, Debian can now be installed in 75 languages, including English. Most languages are available in both the text-based installation user interface and the graphical user interface, while some are only available in the graphical user interface.

The languages that can only be selected using the graphical installer as their character sets cannot be presented in a non-graphical environment are: Amharic, Bengali, Dzongkha, Gujarati, Hindi, Georgian, Kannada, Khmer, Malayalam, Marathi, Nepali, Punjabi, Tamil, Telugu, Tibetan and Uyghur.

UEFI boot

The Stretch installer improves support for a lot of UEFI firmware and also supports installing on 32-bit UEFI firmware with a 64-bit kernel.

Note that this does not include support for UEFI Secure Boot.

Multi-arch images now default to amd64

Since 64-bits PC become more common, the default architecture on multi-arch images is now amd64 instead of i386.

Full CD sets removed

The full CD sets are not build anymore. The DVD images are still available as the netinst CD image.

Also, as the installer now gives an easy choice of desktop selection within tasksel, only Xfce CD#1 remains as a single-CD desktop system.

Acessibility in the installer and the installed system

The installer produce two beeps instead of one when booted with grub, so the user knows he has to use the grub way to edit entries.

MATE desktop is the default desktop when brltty or espeakup is used in debian-installer.

Add HTTPS support

Support for HTTPS has been added to the installer, enabling download of packages from https mirrors.

3.1.2. Automated installation

Some changes mentioned in the previous section also imply changes in the support in the installer for automated installation using preconfiguration files. This means that if you have existing preconfiguration files that worked with the jessie installer, you cannot expect these to work with the new installer without modification.

The Installation Guide has an updated separate appendix with extensive documentation on using preconfiguration.