livecd.sh is copyright (c) 2004-2007 by Canonical Ltd.
e2fs-zero.py is copyright copyright (c) 2005 by Paul Sladen

These programs are free software; you can redistribute and/or modify
them under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

These programs are distributed in the hope that they will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License with
your Ubuntu system, in /usr/share/common-licenses/GPL, or with the
livecd-rootfs source package as the file COPYING.  If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA.