2007-09-23 08:04:40 +00:00
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#!/bin/sh
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# lh_losetup <device> <file> <partition>
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DEVICE="${1}"
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FILE="${2}"
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PARTITION="${3}"
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losetup "${DEVICE}" "${FILE}"
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FDISK_OUT="`fdisk -l -u ${DEVICE} 2>&1`"
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losetup -d "${DEVICE}"
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LOOPDEVICE="`echo ${DEVICE}p${PARTITION:=1}`"
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CYL="`echo ${FDISK_OUT} | sed -ne "s_^${LOOPDEVICE}[ *]*\([0-9]*\).*_\1_p" `"
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2007-09-23 08:04:41 +00:00
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#OFFSET="`expr 512 '*' ${CYL}`"
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2007-09-23 08:04:40 +00:00
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OFFSET="$((CYL*512))"
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echo loop $DEVICE at offset $OFFSET
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if [ "${PARTITION}" = "0" ]
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then
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losetup "${DEVICE}" "${FILE}"
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else
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losetup -o "${OFFSET}" "${DEVICE}" "${FILE}"
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fi
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