38 lines
981 B
Bash
38 lines
981 B
Bash
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#!/bin/sh
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# losetup - wrapper around losetup
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# Copyright (C) 2006-2007 Daniel Baumann <daniel@debian.org>
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#
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# live-helper comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
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# This is free software, and you are welcome to redistribute it
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# under certain conditions; see COPYING for details.
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set -e
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Losetup ()
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{
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DEVICE="${1}"
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FILE="${2}"
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PARTITION="${3:=1}"
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${LH_ROOT_COMMAND} ${LH_LOSETUP} "${DEVICE}" "${FILE}"
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FDISK_OUT="$(LH_FDISK -l -u ${DEVICE} 2>&1)"
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${LH_ROOT_COMMAND} ${LH_LOSETUP} -d "${DEVICE}"
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LOOPDEVICE="$(echo ${DEVICE}p${PARTITION})"
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if [ "${PARTITION}" = "0" ]
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then
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Echo_message "Mounting ${DEVICE} with offset 0"
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${LH_ROOT_COMMAND} ${LH_LOSETUP} "${DEVICE}" "${FILE}"
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else
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CYLINDERS="$(echo "$FDISK_OUT" | sed -ne "s_^$LOOPDEVICE[ *]*\([0-9]*\).*_\1_p")"
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OFFSET="$(expr ${CYLINDERS} '*' 512)"
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Echo_message "Mounting ${DEVICE} with offset ${OFFSET}"
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${LH_ROOT_COMMAND} ${LH_LOSETUP} -o "${OFFSET}" "${DEVICE}" "${FILE}"
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fi
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}
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