: #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