source: ipk/source.sh4/swapscreensaver_default_1_0/CONTROL/preinst@ 13647

#!/bin/sh
#
TMP=/tmp/.swapscreensaver

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

echo "checking swapstick"

if [ ! -d /var/swap/saver/ ]; then
  echo "--------------------------"
        echo "no swapstick found...."
        echo "--------------------------"
        exit 1
fi
echo "swapstick found...."
link=`readlink /var/swap`
if [ `df | grep /dev/mtdblock | grep mnt | sed 's/ \+/ /g' | cut -d ' ' -f4 | head -n1 | wc -l` -eq 1 ] && [ $link = "/mnt/swapextensions" ]; then
        SPACE=`df | grep /dev/mtdblock | grep mnt | sed 's/ \+/ /g' | cut -d ' ' -f4 | head -n1`
        FREE=`expr $SPACE - 100`
        SIZE=1660
        echo "checking freespace"
        echo packege size $SIZE kb
        echo freespace size $FREE kb
        if  [ "$FREE" -lt "$SIZE" ]; then
                echo "sorry no freespace left on device"
                exit 1
        else
                echo ok
        fi
else
        echo "syncing disk"
        sync
fi
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

echo "installing Screensaver Pictures to swapstick..."

exit 0