#!/bin/sh
loggerName=detectParSystem.sh
MNTDIR=/mnt/rfs
DIAG_FILE=/var/run/diag/parsystem
ubidev=ubi3
rfs1ubi=5
rfs2ubi=6
rfs1ubimtd="ubi.mtd=5"
rfs2ubimtd="ubi.mtd=6"

f_exit(){
  umount $MNTDIR 
  /usr/bin/ubidetach /dev/ubi_ctrl -m $OtherUbi >/dev/null 2>&1
  exit 1
}

mkdir $MNTDIR >/dev/null 2>&1
# ermitteln der aktiven Partition
ActiveMtd=`cat /proc/cmdline | awk '{print $3}'`
/usr/bin/logger -s -t $loggerName "aktive Partion <$ActiveMtd>"

if [ $ActiveMtd = $rfs1ubimtd ]; then
  OtherUbi=$rfs2ubi
  /usr/bin/ubiattach /dev/ubi_ctrl -m $OtherUbi -d 3 >/dev/null 2>&1
  if [ "$?" -ne "0" ]; then
     logger -s -t $loggerName "Error: /usr/bin/ubiattach /dev/ubi_ctrl -m $OtherUbi"
     f_exit          
  fi
  mount -r -o sync -t ubifs $ubidev:rootfs $MNTDIR >/dev/null 2>&1
  if [ "$?" -ne "0" ]; then
     logger -s -t $loggerName "Error: mount -t ubifs $ubidev:rootfs $MNTDIR"
     f_exit    
  fi
else 
  OtherUbi=$rfs1ubi
  /usr/bin/ubiattach /dev/ubi_ctrl -m $OtherUbi -d 3 >/dev/null 2>&1
  if [ "$?" -ne "0" ]; then
     logger -s -t $loggerName "Error: /usr/bin/ubiattach /dev/ubi_ctrl -m $OtherUbi"
     f_exit    
  fi
  mount -r -o sync -t ubifs $ubidev:rootfs $MNTDIR >/dev/null 2>&1
  if [ "$?" -ne "0" ]; then
     logger -s -t $loggerName "Error: mount -t ubifs $ubidev:rootfs $MNTDIR"
     f_exit  
  fi
fi
# Parallele FW Version eintragen
cat $MNTDIR/etc/version > $DIAG_FILE
if [ "$?" -ne "0" ]; then
    logger -s -t $loggerName "Error: cat $MNTDIR/etc/version"
    f_exit    
fi
# aushaengen
umount $MNTDIR 
/usr/bin/ubidetach /dev/ubi_ctrl -m $OtherUbi >/dev/null 2>&1
exit 0