freebsd-dev/release/scripts/doFS.sh

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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
#
# If we've been told to, compute the required file system size
# and average inode size automatically.
#
if [ ${FSSIZE} -eq 0 -a ${FSLABEL} = "auto" ]; then
roundup() echo $((($1+$2-1)-($1+$2-1)%$2))
nf=$(find ${FSPROTO} |wc -l)
sk=$(du -sk ${FSPROTO} |cut -f1)
FSINODE=$(roundup $(($sk*1024/$nf)) ${FSINODE})
FSSIZE=$(roundup $(($sk*12/10)) 1024)
fi
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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 + $u '*' 8`
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umount /dev/${VNDEVICE} 2>/dev/null || true
umount ${MNT} 2>/dev/null || true
vnconfig -u /dev/r${VNDEVICE} 2>/dev/null || true
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
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mount /dev/${VNDEVICE}c ${MNT}
}
dofs_md () {
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if [ "x${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
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MDDEVICE=`mdconfig -a -t vnode -f ${FSIMG}`
if [ ! -c /dev/${MDDEVICE} ] ; then
echo "No /dev/$MDDEVICE" 1>&2
exit 1
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fi
trap "umount ${MNT}; mdconfig -d -u ${MDDEVICE}" EXIT
if [ "x${DISKLABEL}" != "x" ] ; then
${DISKLABEL} ${MACHINE} -w ${BOOT} ${MDDEVICE} ${FSLABEL}
newfs -O1 -i ${FSINODE} -o space -m 0 /dev/${MDDEVICE}c
mount /dev/${MDDEVICE}c ${MNT}
else
newfs -O1 -i ${FSINODE} -o space -m 0 /dev/${MDDEVICE}
mount /dev/${MDDEVICE} ${MNT}
fi
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}
rm -f ${FSIMG}
dd of=${FSIMG} if=/dev/zero count=${FSSIZE} bs=1k 2>/dev/null
#
# We don't have any bootblocks on ia64. Note that -B implies -r,
# so we have to specifically specify -r when we don't have -B.
# bsdlabel fails otherwise.
#
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case `uname -r` in
4.*)
if [ -f "${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 ${RD}/trees/base/boot/boot2"
fi
else
BOOT="-r"
fi
dofs_vn
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;;
*)
if [ -f "${RD}/trees/base/boot/boot" ]; then
BOOT="-B -b ${RD}/trees/base/boot/boot"
else
BOOT="-r"
fi
dofs_md
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;;
esac
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 "*** File system is ${FSSIZE} K, $4 left"
echo "*** ${FSINODE} bytes/inode, $7 left"