installer

#!/sbin/sh
if [ -f /sdcard/installer.zip ]; then
    unzip -qq /sdcard/installer.zip META-INF -d /tmp/ #extract the updater-script quietly to /tmp/
fi;
if [ -f /tmp/updater-script ]; then
    sed -i 1i"# Script modified by Dual Boot installer" /tmp/updater-script; #add disclosure
    sed -i 's|stl9|mmcblk0p2|g' /tmp/updater-script; #replace system partition with system sd card
    sed -i 's|stl10|mmcblk0p3|g' /tmp/updater-script; #replace data partition with data sd card
    sed -i 's|stl11|mmcblk0p4|g' /tmp/updater-script; #replace cache partition with cache sd card
    sed -i '|run_program("*bmlwrite"|,|dev/block/bml7");|d' /tmp/updater-script; #disable kernel flash
    sed -i 's|[ \t]*$||' /tmp/updater-script; #remove trailing whitespaces
    sed -i 's|.$||' /tmp/updater-script; #convert to UNIX LF line endings just in case
    echo '#Kernel flashing disabled by DualBoot installer script' >> /tmp/updater-script; #add string to end of file
    echo 'ui_print("Flashing Kernel Disabled by Install Script");' >> /tmp/updater-script; #add string to end of file
    zip -r META-INF /sdcard/installer.zip; #put the updater-script back
fi;
if [ -d /tmp/META-INF; ]; then
    rm -Rf /tmp/META-INF;
fi;