This is the debian-installer build system, which produces the
Debian install media.

The debian-installer build system is Copyright 2001-2003 by Joey Hess
<joeyh@debian.org> and the d-i team and is licensed under the terms of the
GNU GPL which can be found in /usr/share/common-licenses/GPL on Debian
systems.

The install media built by the debian-installer build system contain a wide
variety of free software, including the GNU C library, busybox, linux
kernel, newt, etc. It also includes much of the rest of the
debian-installer: main-menu, udpkg, anna, cdebconf, rootskel and di-utils.
The sources to all of the software included in the install media, and the
details about its copyright can be found in the Debian archive.
