/usr/lib/uec-provisioning/setup-pxe is in uec-provisioning-tftpd 0.5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #!/bin/sh -e
# setup-pxe - configure pxe for uec-provisioning
# Copyright (C) 2010 Canonical, Ltd.
#
# Authors:
# * Chris Cheney <chris.cheney@canonical.com>
# * Dustin Kirkland <kirkland@canonical.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
tftp_dir="/var/lib/tftpboot"
mkdir -p "$tftp_dir/pxelinux.cfg"
chmod 775 "$tftp_dir/pxelinux.cfg"
chown root:www-data "$tftp_dir/pxelinux.cfg"
# Remove any symlink or file
rm -f "$tftp_dir/pxelinux.cfg/default"
# Write a new default, which boots the local disk
cat > "$tftp_dir/pxelinux.cfg/default" <<EOF
default local
prompt 1
timeout 20
label local
localboot -1
EOF
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