source: ipk/source/system_tun_ufs910/CONTROL/preinst@ 17841

#!/bin/sh
#
TMP=/tmp/.tun
echo "syncing disk"
sync

model=`cat /etc/model`
echo""
echo "Checking your Boxtype...."
echo "Some Plugins will not work correctly on your $model!"
echo ""
if [ "$model" != "ufs910" ]; then
        echo "Sorry! This Modul is not for your $model !! It will not work correctly !!"
        echo "Aborting installation..."
        exit 1
else
        echo "Boxtype: $model OK"
fi

if [ -e /lib/modules/tun.ko ]; then
        echo --------------------------
        echo tun.ko allready installed !!
        echo --------------------------
        exit 1
fi
if [ `df | grep /dev/mtdblock | grep var | sed 's/ \+/ /g' | cut -d ' ' -f4 | tail -n1 | wc -l` -eq 1 ]; then
        SPACE=`df | grep /dev/mtdblock | grep var | sed 's/ \+/ /g' | cut -d ' ' -f4 | tail -n1`
        FREE=`expr $SPACE - 100`
        SIZE=12
        echo "check freespace"
        echo packege size $SIZE kb
        echo freespace size $FREE kb
        if  [ "$FREE" -lt "$SIZE" ]; then
                echo "sorry no freespace on device"
                exit 1
        else
                echo ok
        fi
fi
echo "install tun.ko ..."
buildgroup=`cat /etc/.buildgroup`
echo "checking OS"
if  [ `cat /etc/motd | grep $buildgroup | grep M | grep rev | wc -l` -eq 0 ]; then
        echo ---------------------------
        echo DONT USE this IPK Package!!
        echo ---
        echo Only for $buildgroup Image!!
        echo ---------------------------
        exit 1
fi
exit 0