SYSLINUX=$IMGPATH/usr/bin/syslinux

if [ ! -f $SYSLINUX ]; then
    echo "$SYSLINUX doesn't exist"
    exit 1
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
	pngtopnm $BOOTDISKDIR/syslinux-splash.png | ppmtolss16 \#000000=0 \#cdcfd5=7 \#c90000=2 \#ffffff=15 \#5b6c93=9 > $BOOTDISKDIR/splash.lss
	cp $BOOTDISKDIR/splash.lss $MBD_BOOTTREE/splash.lss
	rm -f $MBD_BOOTTREE/syslinux-splash.png
	if [ -d $BOOTDISKDIR/$BOOTLANG ]; then
	    for file in $BOOTDISKDIR/$BOOTLANG/*.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 $BOOTDISKDIR/$BOOTLANG to $MBD_BOOTTREE.
		umount $MBD_BOOTTREE
		rm -rf $MBD_BOOTTREE $MBD_TMPIMAGE
		exit 1
	    fi
	else
	    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
	fi
}

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

While most present-day computers are able to start the installation process
by booting directly from Red Hat Linux CD #1, some hardware configurations
require the use of boot and driver diskettes.  If your hardware requires
boot and driver diskettes to start the installation process, you can create
them using the image files in this directory.

To create boot and driver diskettes from these image files, follow the
instructions in the Red Hat Linux Installation Guide, Chapter 1, under the
section entitled, "Making an Installation Boot Diskette."

All installation methods must use a boot diskette created from the
following image file:

bootdisk.img - primary boot image for all install methods

A driver diskette will be required for installation types other than those
using ATAPI CD-ROM drives or ATA (also known as IDE) hard drives.

The following driver diskette image files are available:

EOF

# LATEUSBMODS go in the second stage.  
# FIXME: bleah, have to include sd_mod, sr_mod for usb-storage
USBMODS="usb-ohci usb-uhci hid keybdev usb-storage sd_mod sr_mod"
# usb-storage goes on both so we can reload it.  *sigh*
LATEUSBMODS="mousedev usb-storage"
IDEMODS=""
SCSIMODS="sd_mod sg sr_mod st"

FSMODS="msdos vfat ext3 reiserfs jfs"
SECSTAGE="agpgart raid0 raid1 raid5 lvm-mod $FSMODS $IDEMODS $SCSIMODS $LATEUSBMODS st parport_pc parport"

BTERMMODULES="vga16fb"
COMMONMODULES="vfat nfs floppy $USBMODS $BTERMMODULES"
LOCALMODULES="$COMMONMODULES aic7xxx megaraid ncr53c8xx 
	     sym53c8xx $IDEMODS $SCSIMODS"
NETWORKMODULES="$COMMONMODULES 3c59x 
	       e100 tulip 8139too"
#	       sis900 e100 hp100 natsemi pcnet32"

PCMCIAMAINMODULES="$COMMONMODULES nfs $IDEMODS $SCSIMODS"

# images we only want on the CD (usually for space reasons)
ISOLINUXMODULES="ehci-hcd ieee1394 ohci1394 sbp2"

# XXX hack hack
PCMCIAMODULES_EXCLUDED="
	apa1480_cb
	airo
	airo_cs
	aironet4500_core
	aironet4500_proc
	hermes
	iflash2+_mtd
	iflash2_mtd
	memory_cb
	memory_cs
	parport_cs
	parport_pc
	parport
	serial_cs
	serial_cb
	sram_mtd
        aironet4500_cs
        orinoco_cs
        orinoco
        orinoco_old_cs
	wavelan
        wavelan_cs
        wvlan_cs
"
PCMCIAMODULES_EXCLUDED_SED="sed"
for m in $PCMCIAMODULES_EXCLUDED
do
   PCMCIAMODULES_EXCLUDED_SED="$PCMCIAMODULES_EXCLUDED_SED -e 's/$m//g'"
done
PCMCIAMODULES=`echo $PCMCIAMODULES | eval "$PCMCIAMODULES_EXCLUDED_SED"`

# need to make sure the base modules are included
PCMCIAMODULES="$PCMCIAMODULES yenta_socket i82365 tcic pcmcia_core ds"

makeBootImages() {
 if [ "$KERNELARCH" = "i386" ]; then
    echo "Building $KERNELARCH $TOPDESTPATH/images/pxeboot/initrd.img"
    makeinitrd --initrdto $TOPDESTPATH/images/pxeboot/initrd.img \
	--pcmcia --nobogl \
	--initrdsize 4750 \
	--loaderbin loader \
	--modules "$COMMONMODULES"

    echo "Building $KERNELARCH bootdisk.img"
    makebootdisk --kernelto $TOPDESTPATH/images/pxeboot/vmlinuz  \
	--bootdisksize 1440 \
	--imagename $BOOTDIR/bootdisk.img \
	--initrd $TOPDESTPATH/images/pxeboot/initrd.img
    [ $? = 0 ] || exit 1

    rm -f $TOPDESTPATH/images/pxeboot/initrd.img

    echo "Building $KERNELARCH drvblock.img"
    makedriverdisk --padsize 1440 "Supplemental Block Device Drivers" "drvblock" "=scsi"
    # JKFIXME: was exit 1
    [ $? = 0 ] || echo "ERROR: failed to write drvblock" 
    echo "Building drvnet.img"
    makedriverdisk --padsize 1440 "Supplemental Network Drivers" "drvnet" "=net"
    [ $? = 0 ] || echo "ERROR: failed to write drvnet"

    echo "Building $KERNELARCH pcmciadd.img"
    makedriverdisk --padsize 1440 "PCMCIA Driver Diskette" "pcmciadd" "$PCMCIAMODULES"
    [ $? = 0 ] || echo "ERROR: failed to write pcmciadd" 

  fi

  # FIXME: this is so that we can switch back and forth.  if we want both
  # on the CD, then more needs to be done, esp for things like isolinux.cfg
  # Right now, last one wins
  if [ "$KERNELARCH" = "i686" -o "$KERNELARCH" = "i386" -o "$KERNELARCH" = "i586" -o "$KERNELARCH" = "athlon" ]; then
    echo "Building $KERNELARCH initrd-everything.img"
    makeinitrd --initrdto $TOPDESTPATH/images/pxeboot/initrd-everything.img \
	--pcmcia \
	--initrdsize 7000 \
	--loaderbin loader \
	--modules "$LOCALMODULES $NETWORKMODULES $PCMCIAMAINMODULES $PCMCIAMODULES $ISOLINUXMODULES =scsi =net"
    [ $? = 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-everything.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
    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
	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

    # now make a boot iso
    mkdir -p $TOPDESTPATH/images/isopath
    cp -rl $TOPDESTPATH/isolinux $TOPDESTPATH/images/isopath
    mkisofs -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 -T $TOPDESTPATH/images/isopath
    rm -rf $TOPDESTPATH/images/isopath
    
    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 Red Hat Linux
EOF
  fi
}

makeSecondStage() {
    echo "Building main moduleball"
    makemainmodules "=scsi =net $SECSTAGE"
    [ $? = 0 ] || exit 1

    echo "Building netstg.img"
    makeinstimage "netstg" "=scsi $SECSTAGE"
    [ $? = 0 ] || exit 1
    echo "Building hdstg.img"
    makeinstimage "hdstg" "=net $SECSTAGE"
    [ $? = 0 ] || exit 1
    echo "Building stage2.img"
    makemainimage "stage2" "cramfs"
    [ $? = 0 ] || exit 1
}