Build operating system images on demand

Assembly Line


For many admins, building operating system images is an unnecessarily complicated exercise that requires a huge amount of preparation. FAI shows another way: By combining the appropriate parameters for fai-diskimage or fai-cd and fai-mirror, it builds generic disk images at the command line in a very short time.

However, FAI itself cannot be set up easily and quickly. Anyone planning to install dozens, hundreds, or even thousands of systems automatically with this solution will be happy to put up with the overhead of the initial FAI installation: It's guaranteed to pay dividends. Each new server that is installed in this way then reduces the total overhead and pays for itself.

If you just want a sample of the FAI atmosphere, is the right place to start. In a very short time, you can build disk images for Debian that still offer some leeway for local customizations. is therefore a very useful extension to FAI itself and worth exploring.


  1. "Automatically install and configure systems" by Martin Loschwitz, ADMIN , issue 52, 2019, pg. 62:
  2. Debian cloud images:
  3. for cloud images:
  4. for installation images:

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