FAI (Fully Automatic Installation) for Debian GNU/Linux is an automated installation tool to install Debian GNU/Linux on a Linux Cluster or a bunch of different hosts. It's similar but better than other tools like kickstart for Red Hat, yast and alice for SuSE, lui from IBM or Jumpstart for SUN Solaris.
You can take one or more virgin PCs, turn on the power and after a few minutes Linux is installed, configured and running on the whole cluster, without any interaction necessary. Thus it's a scalable method for installing and updating a Beowulf cluster or a network of workstations unattended with little effort involved. FAI uses the Debian distribution and a collection of shell- and Perl-scripts for the installation process. Changes to the configuration files of the operating system are made by cfengine, shell and Perl scripts. Using FAI, unattended and fully automated OS installations of several Linux clusters were performed.
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