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#!/bin/sh
# losetup - wrapper around losetup
# Copyright (C) 2006-2008 Daniel Baumann <daniel@debian.org>
#
# live-helper 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
Losetup ()
{
DEVICE="${1}"
FILE="${2}"
PARTITION="${3:=1}"
${LH_ROOT_COMMAND} ${LH_LOSETUP} "${DEVICE}" "${FILE}"
FDISK_OUT="$(${LH_FDISK} -l -u ${DEVICE} 2>&1)"
${LH_ROOT_COMMAND} ${LH_LOSETUP} -d "${DEVICE}"
LOOPDEVICE="$(echo ${DEVICE}p${PARTITION})"
if [ "${PARTITION}" = "0" ]
then
Echo_message "Mounting ${DEVICE} with offset 0"
${LH_ROOT_COMMAND} ${LH_LOSETUP} "${DEVICE}" "${FILE}"
else
CYLINDERS="$(echo "$FDISK_OUT" | sed -ne "s|^$LOOPDEVICE[ *]*\([0-9]*\).*|\1|p")"
OFFSET="$(expr ${CYLINDERS} '*' 512)"
Echo_message "Mounting ${DEVICE} with offset ${OFFSET}"
${LH_ROOT_COMMAND} ${LH_LOSETUP} -o "${OFFSET}" "${DEVICE}" "${FILE}"
fi
}
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