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 \#c4c7ce=7 \#c60000=2 \#ffffff=15 \#7790c2=9 > $BOOTDISKDIR/splash.lss
	cp $BOOTDISKDIR/splash.lss $MBD_BOOTTREE/splash.lss
	rm -f $MBD_BOOTTREE/syslinux-splash.png
	if [ -d $BOOTDISKDIR/$BOOTLANG ]; then
	    # fb console and kon don't get along...
	    if [ "$BOOTLANG" = "ja_JP" ]; then
		sed -e "s/ vga=[0-9]*//g" < $MBD_BOOTTREE/syslinux.cfg > $MBD_BOOTTREE/syslinux.cf2
		mv -f $MBD_BOOTTREE/syslinux.cf2 $MBD_BOOTTREE/syslinux.cfg
	    fi
	    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

The files in this directory are raw disk images.  Some are boot disks
for booting the Red Hat Linux installation program.  Others are driver
disks to support loading the installation program from less common
hardware.

Follow the instructions in the Red Hat Linux Installation Guide,
Chapter 1, section "Making Installation Diskettes" to create the
disks.

The drivers.img driver disk image has been split into several disks
because of the increasing size of the supported modules.

The following boot image:

bootdisk.img - primary boot image for all install methods

is to be used for all install methods. A secondary driver disk will be
required for most install types other than IDE CDROM and HD based installs.

The following driver disks are available:

EOF

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

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

BTERMMODULES="vga16fb"
COMMONMODULES="vfat nfs $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 pcmcia_core ds"

echo "Building $TOPDESTPATH/images/pxeboot/initrd.img"
makeinitrd --initrdto $TOPDESTPATH/images/pxeboot/initrd.img \
           --pcmcia \
	   --initrdsize 2750 \
	   --loaderbin loader \
	   --modules "$COMMONMODULES"

echo "Building initrd-everything.img"
makeinitrd --initrdto $TOPDESTPATH/images/pxeboot/initrd-everything.img \
	   --pcmcia \
	   --initrdsize 5000 \
	   --loaderbin loader \
	   --modules "$LOCALMODULES $NETWORKMODULES $PCMCIAMAINMODULES $PCMCIAMODULES $ISOLINUXMODULES =scsi =net"
[ $? = 0 ] || exit 1

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

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
	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

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

# 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