This file is indexed.

/bin/live-update-initramfs-uuid is in live-tools 1:20151214.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh

# live-tools(7) - System Support Scripts
# Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
#
# This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
# This is free software, and you are welcome to redistribute it
# under certain conditions; see COPYING for details.

set -e

_OLD_INITRD="${1}"
_NEW_INITRD="${2}"
_NEW_UUID="${3}"

if [ -z "${_OLD_INITRD}" ]
then
	echo "Usage: ${0} OLD_INITRD [NEW_INITRD] [NEW_UUID|NEW_UUID.conf]"
	exit 1
fi

_TMPDIR="$(mktemp -d -t live-update-initramfs-uuid.XXXXXXXX)"

trap "rm -rf ${_TMPDIR}" EXIT HUP INT QUIT TERM

case "${_INITRD}" in
	*.gz)
		_COMPRESSION="gzip"
		;;

	*.bz2)
		_COMPRESSION="bzip2"
		;;

	*.lzma)
		_COMPRESSION="lzma"
		;;

	*.lz)
		_COMPRESSION="lzip"
		;;

	*.xz)
		_COMPRESSION="xz"
		;;
esac

if [ ! -x "$(which ${_COMPRESSION} 2> /dev/null)" ]
then
	echo "E: ${_COMPRESSION} - no such program"
	exit 1
fi

if [ -e "${_NEW_UUID}" ]
then
	# uuid from user specified file
	_NEW_UUID="$(cat ${_NEW_UUID})"
fi

if [ -z "${_NEW_UUID}" ]
then
	# uuid neither from file (or file is empty),
	# nor specified as argument
	_NEW_UUID="$(uuidgen -r)"
fi

cd "${_TMPDIR}"

${_COMPRESSION} -c -d "${_OLD_INITRD}" | cpio -id

echo "${_NEW_UUID}" > conf/uuid.conf


find . | cpio --quiet -R 0:0 -o -H newc | ${_COMPRESSION} -c > "/tmp/$(basename ${_OLD_INITRD})"

cd "${OLDPWD}"

if [ -n "${_NEW_UUID}" ]
then
	mv "/tmp/$(basename ${_OLD_INITRD})" "${_NEW_INITRD}"
else
	mv "/tmp/$(basename ${_OLD_INITRD})" ./
fi