The Debian bug reporter is copyright 2003-2005 by
Petter Reinholdtsen <[email protected]>, Joey Hess <joeyh@debian-org>, and
the debian-installer team.

This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation; version 2 of the License.

On Debian systems, a copy of the GPL is in /usr/share/common-licenses/GPL-2

For the script usb-list:
Original version: http://article.gmane.org/gmane.linux.usb.general/16828
Adapted for Debian Installer by Frans Pop.
Copyright: 2009 Greg Kroah-Hartman <[email protected]>
2009 Randy Dunlap <[email protected]>
2009 Frans Pop <[email protected]>
This software may be used and distributed according to the terms of
the GNU General Public License (GPL), version 2, or at your option
any later version.