source: ipk/source/system_tun_0_1/CONTROL/preinst@ 653

#!/bin/sh
#
TMP=/tmp/.tun
echo "syncing disk"
sync
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 ..."
echo "checking OS"
if  [ `cat /etc/motd | grep AAF | grep M | grep rev | wc -l` -eq 0 ]; then
        echo ---------------------------
        echo DONT USE this IPK Package!!
        echo ---
        echo Only for AAF Image!!
        echo ---------------------------
        exit 1
fi
exit 0