[16 Mar 2020] Debian Installer Bullseye Alpha 2 release
[05 Dec 2019] Debian Installer Bullseye Alpha 1 release
Older news

Installing with the Debian-Installer

For official Debian 10.5 installation media and information, see the buster page.

All images linked below are for the version of Debian Installer being developed for the next Debian release and will install Debian testing (bullseye) by default.

To install Debian testing, we recommend you use the Bullseye Alpha 2 release of the installer, after checking its errata. The following images are available for Bullseye Alpha 2:

Official release

netinst (generally 180-450 MB) CD images
Blu-ray (via jigdo)
other images (netboot, USB stick, etc.)

Or install the current weekly snapshot of Debian testing which uses the same version of the installer as the last release:

Current weekly snapshots

Blu-ray (via jigdo)

Current daily snapshots

netinst (generally 150-280 MB) CD images
netinst multi-arch CD images
other images (netboot, USB stick, etc.)

If any of the hardware in your system requires firmware to be loaded with the device driver, you can use one of the tarballs of common firmware packages. Instructions how to use the tarballs and general information about loading firmware during an installation can be found in the Installation Guide (see Documentation below).


After using the Debian-Installer, please send us an installation report, even if there weren't any problems.


If you read only one document before installing, read our Installation Howto, a quick walkthrough of the installation process. Other useful documentation includes:

Contacting us

The debian-boot mailing list is the main forum for discussion and work on Debian-Installer.

We also have an IRC channel, #debian-boot on This channel is used mainly for development, but occasionally for support. If you do not receive a response, try the mailing list instead.