mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
43e4c0c1fa
you still need tohave done a make world and have made 'sysinstall' this should not interfere with existing code as it's standalone. write_mfs_in_kernel.c is duplicated alsewhere.. one will go ..
121 lines
2.6 KiB
Bash
121 lines
2.6 KiB
Bash
:
|
|
#set -ex
|
|
|
|
VNDEVICE=vn0
|
|
export BLOCKSIZE=512
|
|
|
|
LABELDIR=$1 ; shift
|
|
MNT=$1 ; shift
|
|
FSSIZE=$1 ; shift
|
|
FSPROTO=$1 ; shift
|
|
FSINODE=$1 ; shift
|
|
FSLABEL=$1 ; shift
|
|
OLDFSSIZE=${FSSIZE}
|
|
OLDFSINODE=${FSINODE}
|
|
|
|
deadlock=40
|
|
|
|
while true
|
|
do
|
|
rm -f fs-image
|
|
|
|
if [ ! -b /dev/${VNDEVICE} -o ! -c /dev/r${VNDEVICE} ] ; then
|
|
( cd /dev && sh MAKEDEV ${VNDEVICE} )
|
|
fi
|
|
|
|
umount /dev/${VNDEVICE} 2>/dev/null || true
|
|
|
|
umount ${MNT} 2>/dev/null || true
|
|
|
|
vnconfig -u /dev/r${VNDEVICE} 2>/dev/null || true
|
|
|
|
dd of=fs-image if=/dev/zero count=${FSSIZE} bs=1k 2>/dev/null
|
|
# this suppresses the `invalid primary partition table: no magic'
|
|
awk 'BEGIN {printf "%c%c", 85, 170}' |\
|
|
dd of=fs-image obs=1 seek=510 conv=notrunc 2>/dev/null
|
|
|
|
vnconfig -s labels -c /dev/r${VNDEVICE} fs-image
|
|
|
|
sed '/^minimum:/,$d' /etc/disktab > /etc/disktab.tmp
|
|
cat /etc/disktab.tmp > /etc/disktab
|
|
rm -f /etc/disktab.tmp
|
|
(
|
|
a=`expr ${FSSIZE} \* 2`
|
|
echo
|
|
echo "minimum:ty=mfs:se#512:nt#1:rm#300:\\"
|
|
echo " :ns#$a:nc#1:\\"
|
|
echo " :pa#$a:oa#0:ba#4096:fa#512:\\"
|
|
echo " :pc#$a:oc#0:bc#4096:fc#512:"
|
|
echo
|
|
) >> /etc/disktab
|
|
|
|
disklabel -w -r -B \
|
|
-b ${LABELDIR}/boot1 \
|
|
-s ${LABELDIR}/boot2 \
|
|
/dev/r${VNDEVICE} minimum
|
|
|
|
newfs -u 0 -t 0 -i ${FSINODE} -m 0 -T minimum /dev/r${VNDEVICE}a
|
|
|
|
mount /dev/${VNDEVICE}a ${MNT}
|
|
|
|
if ( set -e && cd ${FSPROTO} && find . -print | cpio -dump ${MNT} )
|
|
then
|
|
;
|
|
else
|
|
echo " $FSINODE and $FSSIZE failed, reverting.."
|
|
FSSIZE=`expr ${FSSIZE} + 10`
|
|
#FSSIZE=${OLDFSSIZE}
|
|
FSINODE=${FSINODE}
|
|
continue
|
|
fi
|
|
|
|
set `df -i /mnt | tail -1`
|
|
#/dev/vn0a 937 932 5 99% 342 328 51% /mnt
|
|
|
|
umount ${MNT}
|
|
|
|
fsck -p /dev/r${VNDEVICE}a < /dev/null
|
|
|
|
vnconfig -u /dev/r${VNDEVICE} 2>/dev/null || true
|
|
|
|
if [ $FSLABEL != "minimum" ] ; then
|
|
echo ${FSSIZE} > fs-image.size
|
|
break
|
|
fi
|
|
|
|
OLDFSSIZE=${FSSIZE}
|
|
OLDFSINODE=${FSINODE}
|
|
echo ">>> Filesystem is ${FSSIZE} K, $4 left"
|
|
echo ">>> ${FSINODE} bytes/inode, $7 left"
|
|
echo ">>> `expr ${FSSIZE} \* 1024 / ${FSINODE}`"
|
|
if [ $4 -gt 128 ] ; then
|
|
echo "Reducing size"
|
|
FSSIZE=`expr ${FSSIZE} - $4 / 2`
|
|
continue
|
|
fi
|
|
if [ $7 -gt 128 ] ; then
|
|
echo "Increasing bytes per inode"
|
|
FSINODE=`expr ${FSINODE} + 8192`
|
|
continue
|
|
fi
|
|
if [ $4 -gt 32 ] ; then
|
|
echo "Reducing size"
|
|
FSSIZE=`expr ${FSSIZE} - 4`
|
|
FSINODE=`expr ${FSINODE} - 1024`
|
|
continue
|
|
fi
|
|
if [ $7 -gt 64 ] ; then
|
|
echo "Increasing bytes per inode"
|
|
FSINODE=`expr ${FSINODE} + 8192`
|
|
continue
|
|
fi
|
|
if [ $deadlock -eq 0 ] ; then
|
|
echo "Avoiding deadlock, giving up"
|
|
echo ${FSSIZE} > fs-image.size
|
|
break
|
|
fi
|
|
deadlock=`expr $deadlock - 1`
|
|
echo ${FSSIZE} > fs-image.size
|
|
break;
|
|
done
|