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#!/bin/bash
set -e
cleanup() {
[ -d "$EXTMNT" ] && umount $EXTMNT && rmdir $EXTMNT
[ -d "$SQUASHMNT" ] && umount $SQUASHMNT && rmdir $SQUASHMNT
[ -d "$ISOMNT" ] && umount $ISOMNT && rmdir $ISOMNT
}
exitclean() {
echo "Cleaning up to exit..."
cleanup
exit 1
}
trap exitclean SIGINT SIGTERM
PATH=/sbin:/usr/sbin:$PATH
ISO=$(readlink -f "$1")
ROOT=$(readlink -f "$2")
ISOMNT=$(mktemp -d /media/isotmp.XXXXXX)
mount -o loop,ro "$ISO" $ISOMNT || exitclean
EXTIMG=$ISOMNT/LiveOS/ext3fs.img
if [ -e $ISOMNT/LiveOS/squashfs.img ] ; then
SQUASHMNT=$(mktemp -d /media/squashtmp.XXXXXX)
mount -o loop,ro $ISOMNT/LiveOS/squashfs.img $SQUASHMNT || exitclean
EXTIMG=$SQUASHMNT/LiveOS/ext3fs.img
fi
EXTMNT=$(mktemp -d /media/exttmp.XXXXXX)
mount -o loop,ro $EXTIMG $EXTMNT || exitclean
echo "Create root filesystem..."
mkdir -p $ROOT
chmod a+rx $ROOT/.
cp -a $EXTMNT/* $ROOT
echo "Done."
cleanup
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