cat > "/etc/init.d/revertexports.sh" <<EOF
#!/bin/sh
#
# Execute this script at boot.  It will monitor /etc/exports for changes
# and revert them.  That way, your modifications aren't lost.
#
#     Author: Ben M.
#        URL: http://ss4200.pbworks.com/Prevent-overwrite-of-exports-file%2C-enable-no_root_squash
# Disclaimer: Use entirely at your own risk

date >> "/var/tmp/revertexports.log"
echo "Started revertexports" >> "/var/tmp/revertexports.log"

if [ ! -f "/etc/exports.generated" ]
then
  echo "Creating symlink /etc/exports.generated" >> "/var/tmp/revertexports.log"
  ln -s "/mnt/soho_storage/config/exports" "/etc/exports.generated"
fi

if [ ! -f "/etc/exports.bak.1" ]
then
  echo "Backing up exports" >> "/var/tmp/revertexports.log"
  cp -p "/etc/exports" "/etc/exports.bak.1"
fi

if [ "/etc/exports" -nt "/etc/exports.bak.1" ]
then
  for COUNTER in 4 3 2 1
  do
    if [ -f "/etc/exports.bak.\$COUNTER" ]
    then
      echo "Rotate exports.bak.\$COUNTER" >> "/var/tmp/revertexports.log"
      mv "/etc/exports.bak.\$COUNTER" "/etc/exports.bak.\`expr \$COUNTER + 1\`"
    fi
  done
  echo "Rotate exports" >> "/var/tmp/revertexports.log"
  cp -p "/etc/exports" "/etc/exports.bak.1"
fi

echo "Monitoring /etc/exports for changes..." >> "/var/tmp/revertexports.log"

COUNTER=0
until [ "\$COUNTER" -ge "60" ] || [ "/etc/exports" -nt "/etc/exports.bak.1" ]
do
  let COUNTER=COUNTER+1
  sleep 1
done

date >> "/var/tmp/revertexports.log"

cp -p "/etc/exports.bak.1" "/etc/exports"
if [ "\$COUNTER" -ge "60" ]
then
  echo "Timed out waiting for changes." >> "/var/tmp/revertexports.log"
else
  echo "Reverting exports"  >> "/var/tmp/revertexports.log"
  exportfs -arv >> "/var/tmp/revertexports.log"
fi
EOF

chmod a+rx "/etc/init.d/revertexports.sh"

cat > "/etc/init.d/S05revertexports" <<EOF
#!/bin/sh
"/etc/init.d/revertexports.sh" &
EOF

chmod a+rx "/etc/init.d/S05revertexports"
if [ -L "/etc/exports" ]
then
  # Undo the symlink
  cp -p "/mnt/soho_storage/config/exports" "/etc/exports"
fi