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#!/bin/sh
#
# $FreeBSD$
#

set -ex

export BLOCKSIZE=512

DISKLABEL=$1; shift
MACHINE=${1:+"-m $1"}; shift
FSIMG=$1; shift
RD=$1 ; shift
MNT=$1 ; shift
FSSIZE=$1 ; shift
FSPROTO=$1 ; shift
FSINODE=$1 ; shift
FSLABEL=$1 ; shift

#
# We don't have any bootblocks on ia64. Note that -B implies -r,
# so we have to specifically specify -r when we don't have -B.
# bsdlabel fails otherwise.
#
if [ -f "${RD}/trees/base/boot/boot" ]; then
	BOOT="-B -b ${RD}/trees/base/boot/boot"
elif [ -f "${RD}/trees/base/boot/boot1" ]; then
	BOOT="-B -b ${RD}/trees/base/boot/boot1"
	if [ -f "${RD}/trees/base/boot/boot2" ]; then
		BOOT="${BOOT} -s ${RD}/trees/base/boot/boot2"
	fi
else
	BOOT="-r"
fi

deadlock=20

dofs_vn () {
    if [ "x$VNDEVICE" = "x" ] ; then
	VNDEVICE=vn0
    fi
    u=`expr $VNDEVICE : 'vn\([0-9]*\)' || true`
    VNDEVICE=vnn$u

    rm -f /dev/*vnn*
    mknod /dev/rvnn${u} c 43 `expr 65538 + $u '*' 8`
    mknod /dev/rvnn${u}c c 43 `expr 2 + $u '*' 8`
    mknod /dev/vnn${u} b 15 `expr 65538 + $u '*' 8`
    mknod /dev/vnn${u}c b 15 `expr 2 + $u '*' 8`

    while true 
    do
	rm -f ${FSIMG}

	umount /dev/${VNDEVICE} 2>/dev/null || true
	umount ${MNT} 2>/dev/null || true
	vnconfig -u /dev/r${VNDEVICE} 2>/dev/null || true

	dd of=${FSIMG} if=/dev/zero count=${FSSIZE} bs=1k 2>/dev/null

	vnconfig -s labels -c /dev/r${VNDEVICE} ${FSIMG}

	trap "umount ${MNT}; vnconfig -u /dev/r${VNDEVICE}; rm -f /dev/*vnn*" EXIT

	disklabel -w ${BOOT} ${VNDEVICE} ${FSLABEL}
	newfs -i ${FSINODE} -o space -m 0 /dev/r${VNDEVICE}c

	mount /dev/${VNDEVICE}c ${MNT}

	if [ -d ${FSPROTO} ]; then
		(set -e && cd ${FSPROTO} && find . -print | cpio -dump ${MNT})
	else
		cp -p ${FSPROTO} ${MNT}
	fi

	df -ki ${MNT}

	set `df -ki ${MNT} | tail -1`

	echo "*** Filesystem is ${FSSIZE} K, $4 left"
	echo "***     ${FSINODE} bytes/inode, $7 left"
	break;
    done
}

dofs_md () {
    while true 
    do
	rm -f ${FSIMG}

	if [ "x${MDDEVICE}" != "x" ] ; then
		umount /dev/${MDDEVICE} 2>/dev/null || true
		umount ${MNT} 2>/dev/null || true
		mdconfig -d -u ${MDDEVICE} 2>/dev/null || true
	fi

	dd of=${FSIMG} if=/dev/zero count=${FSSIZE} bs=1k 2>/dev/null

	MDDEVICE=`mdconfig -a -t vnode -f ${FSIMG}`
	if [ ! -c /dev/${MDDEVICE} ] ; then
		echo "No /dev/$MDDEVICE" 1>&2
		exit 1
	fi

	trap "umount ${MNT}; mdconfig -d -u ${MDDEVICE}" EXIT

	${DISKLABEL} ${MACHINE} -w ${BOOT} ${MDDEVICE} ${FSLABEL}
	newfs -O1 -i ${FSINODE} -o space -m 0 /dev/${MDDEVICE}c

	mount /dev/${MDDEVICE}c ${MNT}

	if [ -d ${FSPROTO} ]; then
		(set -e && cd ${FSPROTO} && find . -print | cpio -dump ${MNT})
	else
		cp -p ${FSPROTO} ${MNT}
	fi

	df -ki ${MNT}

	set `df -ki ${MNT} | tail -1`

	echo "*** Filesystem is ${FSSIZE} K, $4 left"
	echo "***     ${FSINODE} bytes/inode, $7 left"
	break;
    done
}

case `uname -r` in
[1-4].*)
	dofs_vn
	;;
*)
	dofs_md
	;;
esac
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