SYSLINUX=$IMGPATH/usr/lib/syslinux/syslinux-nomtools

if [ ! -f $SYSLINUX ]; then
  echo "Warning: nomtools syslinux doesn't exist"
  SYSLINUX=$IMGPATH/usr/bin/syslinux
  if [ ! -f $SYSLINUX ]; then
    echo "$SYSLINUX doesn't exist"
    exit 1
  fi
fi

prepareBootImage() {
        dd if=/dev/zero bs=1k count=$BOOTDISKSIZE of=/$MBD_TMPIMAGE 2>/dev/null
	mkdosfs -r 16 -C $MBD_TMPIMAGE $BOOTDISKSIZE >/dev/null
	$SYSLINUX $MBD_TMPIMAGE
	mount -o loop -t msdos $MBD_TMPIMAGE $MBD_BOOTTREE

	prepareBootTree
}

# prepare a directory with the kernel, initrd, and various message files
# used to populate a boot image
prepareBootTree() {
	(cd $BOOTDISKDIR; find . ! -name "*.msg" -maxdepth 1 ! -type d | cpio --quiet -p $MBD_BOOTTREE)
	
	cp $MBD_FSIMAGE $MBD_BOOTTREE/initrd.img
	cp $KERNELROOT/boot/vmlinuz-* $MBD_BOOTTREE/vmlinuz

	$IMGPATH/usr/lib/anaconda-runtime/splashtolss.sh $BOOTDISKDIR/syslinux-splash.png $BOOTDISKDIR/splash.lss
	if [ $? != 0 ]; then
	   echo $0: Failed to create splash.lss
	   exit 1
	fi	
	cp $BOOTDISKDIR/splash.lss $MBD_BOOTTREE/splash.lss
	rm -f $MBD_BOOTTREE/syslinux-splash.png
	rm -f $MBD_BOOTTREE/memtest*
	for file in $BOOTDISKDIR/*.msg; do
	    filename=`basename $file`
	    sed -e "s/@VERSION@/$VERSION/g" $file > $MBD_BOOTTREE/$filename
	done
    	if [ $? != 0 ]; then
	   echo $0: Failed to copy messages from $BOOTDISKDIR to $MBD_BOOTTREE.
	   umount $MBD_BOOTTREE
	   rm -rf $MBD_BOOTTREE $MBD_TMPIMAGE
	   exit 1
	fi
}

mkdir -p $TOPDESTPATH/images/pxeboot
cat > $TOPDESTPATH/images/README <<EOF
This directory contains image files that can be used to create media
capable of starting the $PRODUCT installation process.

The boot.iso file is an ISO 9660 image of a bootable CD-ROM.  It is useful
in cases where the CD-ROM installation method is not desired, but the
CD-ROM's boot speed would be an advantage.

To use this image file, burn the file onto CD-R (or CD-RW) media as you
normally would.

The diskboot.img file is a VFAT filesystem image that can be written to a
USB pendrive or other bootable media larger than a floppy.  Note that
booting via USB is dependent on your BIOS supporting this.  It should
be written to the device using dd.
EOF

makeBootImages() {
  if [ "$kerneltag" != "xenU" ]; then
    echo "Building $KERNELARCH initrd.img"
    makeinitrd --initrdto $TOPDESTPATH/images/pxeboot/initrd.img \
	--initrdsize 7000 \
	--loaderbin loader \
	--modules "$INITRDMODS"
    [ $? = 0 ] || exit 1

    if [ -f $IMGPATH/usr/lib/syslinux/isolinux.bin ]; then
	echo "Building isolinux directory"
	MBD_BOOTTREE=$TOPDESTPATH/isolinux
	MBD_FSIMAGE=$TOPDESTPATH/images/pxeboot/initrd.img
	mkdir $MBD_BOOTTREE 2>/dev/null
	cp $IMGPATH/usr/lib/syslinux/isolinux.bin $MBD_BOOTTREE/isolinux.bin

	prepareBootTree

	# isolinux needs the config file to be isolinux.cfg
	mv $MBD_BOOTTREE/syslinux.cfg $MBD_BOOTTREE/isolinux.cfg

	# copy in memtest if present
	if [ -f $IMGPATH/usr/lib/anaconda-runtime/boot/memtest* ]; then
           cp $IMGPATH/usr/lib/anaconda-runtime/boot/memtest* $MBD_BOOTTREE/memtest
           echo -e "label memtest86\n  kernel memtest\n  append -\n" >> $MBD_BOOTTREE/isolinux.cfg
	fi
    else
	echo "No isolinux binaries.  Skipping isolinux creation"
    fi

    # clean up time -- being very explicit about what's linked
    if [ -f $TOPDESTPATH/isolinux/vmlinuz -a -f $TOPDESTPATH/isolinux/initrd.img ] ;then
	echo "Cleaning up images"
	# links for the pxeboot bits
	rm -f $TOPDESTPATH/images/pxeboot/*
	ln $TOPDESTPATH/isolinux/vmlinuz $TOPDESTPATH/images/pxeboot/vmlinuz
	ln $TOPDESTPATH/isolinux/initrd.img $TOPDESTPATH/images/pxeboot/initrd.img

	# links for the autoboot bits
	if [ -f $TOPDESTPATH/dosutils/loadlin.exe ]; then
		rm -f $TOPDESTPATH/dosutils/autoboot/*
		mkdir -p $TOPDESTPATH/dosutils/autoboot/
		ln $TOPDESTPATH/isolinux/vmlinuz $TOPDESTPATH/dosutils/autoboot/vmlinuz
		ln $TOPDESTPATH/isolinux/initrd.img $TOPDESTPATH/dosutils/autoboot/initrd.img
	fi
    fi

    # now make a boot iso
    mkdir -p $TOPDESTPATH/images/isopath
    cp -rl $TOPDESTPATH/isolinux $TOPDESTPATH/images/isopath
    mkisofs -quiet -o $TOPDESTPATH/images/boot.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -V "$PRODUCT" -T $TOPDESTPATH/images/isopath
    rm -rf $TOPDESTPATH/images/isopath
    
    # now make a boot pendrive image
    mkdir -p $TOPDESTPATH/images/fobpath
    dd if=/dev/zero of=$TOPDESTPATH/images/diskboot.img bs=1M count=8 2>/dev/null
    mkdosfs $TOPDESTPATH/images/diskboot.img
    $SYSLINUX $TOPDESTPATH/images/diskboot.img
    mount -o loop $TOPDESTPATH/images/diskboot.img $TOPDESTPATH/images/fobpath
    cp -r $TOPDESTPATH/isolinux/* $TOPDESTPATH/images/fobpath/
    grep -v local $TOPDESTPATH/images/fobpath/isolinux.cfg > $TOPDESTPATH/images/fobpath/syslinux.cfg
    rm -f $TOPDESTPATH/images/fobpath/isolinux.cfg
    umount -f $TOPDESTPATH/images/fobpath
    rmdir $TOPDESTPATH/images/fobpath
    
    cat > $TOPDESTPATH/images/pxeboot/README <<EOF
The files in this directory are useful for booting a machine via PXE.  

The following files are available:
vmlinuz - the BOOT kernel used for the installer
initrd.img - an initrd with support for all install methods and
    drivers supported for installation of $PRODUCT
EOF

  else # set up the boot stuff for the xen guest kernel
    echo "Building $KERNELARCH guest initrd.img"
    mkdir -p $TOPDESTPATH/images/xen
    makeinitrd --initrdto $TOPDESTPATH/images/xen/initrd.img \
	--initrdsize 7000 \
	--loaderbin loader \
	--modules "$INITRDMODS"
    [ $? = 0 ] || exit 1
    cp $KERNELROOT/boot/vmlinuz-*xenU $TOPDESTPATH/images/xen/vmlinuz
  fi
}