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Make the reduction algorithm to tune the file system size less

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aggressive, in order to avoid /mnt: file system full problems.

Introduce a deadlock counter.

Turn off echoing again, it's cluttering the screen/log.

Gross hack to avoid the `vn0: invalid primary partition table: no magic'
warning.

Seems that doFS.sh is now doing the job...
This commit is contained in:
Joerg Wunsch 1996-01-21 17:24:54 +00:00
parent ce723857c4
commit 1117d2af7a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=13534
2 changed files with 50 additions and 26 deletions
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38
release/doFS.sh
View File

@ -1,7 +1,8 @@
:
set -ex
#set -ex
VNDEVICE=vn0
export BLOCKSIZE=512
RD=$1 ; shift
MNT=$1 ; shift
@ -10,6 +11,8 @@ FSPROTO=$1 ; shift
FSINODE=$1 ; shift
FSLABEL=$1 ; shift
deadlock=20
while true
do
rm -f fs-image
@ -25,6 +28,9 @@ do
vnconfig -u /dev/r${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
@ -68,9 +74,20 @@ do
echo ">>> Filesystem is ${FSSIZE} K, $4 left"
echo ">>> ${FSINODE} bytes/inode, $7 left"
echo ">>> `expr ${FSSIZE} \* 1024 / ${FSINODE}`"
if [ $4 -gt 64 ] ; then
if [ $4 -gt 128 ] ; then
echo "Reducing size"
FSSIZE=`expr ${FSSIZE} - $4 + 8`
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
@ -78,17 +95,12 @@ do
FSINODE=`expr ${FSINODE} + 8192`
continue
fi
if [ $4 -gt 8 ] ; then
echo "Reducing size"
FSSIZE=`expr ${FSSIZE} - 4`
FSINODE=`expr ${FSINODE} - 1024`
continue
fi
if [ $7 -gt 32 ] ; then
echo "Increasing bytes per inode"
FSINODE=`expr ${FSINODE} + 8192`
continue
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

38
release/scripts/doFS.sh
View File

@ -1,7 +1,8 @@
:
set -ex
#set -ex
VNDEVICE=vn0
export BLOCKSIZE=512
RD=$1 ; shift
MNT=$1 ; shift
@ -10,6 +11,8 @@ FSPROTO=$1 ; shift
FSINODE=$1 ; shift
FSLABEL=$1 ; shift
deadlock=20
while true
do
rm -f fs-image
@ -25,6 +28,9 @@ do
vnconfig -u /dev/r${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
@ -68,9 +74,20 @@ do
echo ">>> Filesystem is ${FSSIZE} K, $4 left"
echo ">>> ${FSINODE} bytes/inode, $7 left"
echo ">>> `expr ${FSSIZE} \* 1024 / ${FSINODE}`"
if [ $4 -gt 64 ] ; then
if [ $4 -gt 128 ] ; then
echo "Reducing size"
FSSIZE=`expr ${FSSIZE} - $4 + 8`
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
@ -78,17 +95,12 @@ do
FSINODE=`expr ${FSINODE} + 8192`
continue
fi
if [ $4 -gt 8 ] ; then
echo "Reducing size"
FSSIZE=`expr ${FSSIZE} - 4`
FSINODE=`expr ${FSINODE} - 1024`
continue
fi
if [ $7 -gt 32 ] ; then
echo "Increasing bytes per inode"
FSINODE=`expr ${FSINODE} + 8192`
continue
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