#!/bin/sh

SCSIMODULES="
	53c7,8xx.o BusLogic.o NCR53c406a.o advansys.o aha152x.o aha1542.o 
	aha1740.o aic7xxx.o dtc.o eata_dma.o eata_pio.o fdomain.o 
	g_NCR5380.o in2000.o pas16.o ppa.o qlogicfas.o qlogicisp.o 
	seagate.o t128.o wd7000.o ultrastor.o u14-34f.o ncr53c8xx.o"

NETMODULES="apricot.o e2100.o eexpress.o eepro100.o
	de4x5.o ewrk3.o hp-plus.o hp.o hp100.o ibmtr.o ne.o smc-ultra.o 
	smc9194.o tulip.o wd.o plip.o 3c501.o 3c503.o 3c509.o 3c59x.o
	8390.o de600.o de620.o depca.o arcnet.o at1700.o eepro.o ni52.o ni65.o"

CDMODULES="aztcd.o gscd.o mcd.o mcdx.o optcd.o sbpcd.o sjcd.o sonycd535.o
	  cdrom.o cdu31a.o cm206.o isp16.o bpcd.o"

BLOCKMODULES="loop.o"

LIBS="libnss_files libnss_dns libresolv"

MISCMODULES="lp.o"

FSMODULES="isofs.o nfs.o smbfs.o"

PCMCIAMODULES="pcmcia_core.o tcic.o ds.o i82365.o"

UNGZMODULES="8390.o.gz"

SBIN='$1/misc/src/install/install $1/misc/src/installinit/init /bin/cpio'

usage () {
    echo "updboots: <imagetree> <kernel-version>" 2>&1
    exit 1
}

if [ -z "$1" -o -z "$2" ]; then
    usage
fi

if [ ! -d "$1/misc/src/install" ]; then
    echo "$1 is not a valid directory" 2>&1
    usage
fi

if [ ! -d "/lib/modules/$2/scsi" ]; then
    echo "$2 is not a valid modules directory" 2>&1
    usage
fi

if [ ! -f "/boot/vmlinuz-$2" ]; then
    echo "/boot/vmlinuz-$2 does not exist"
    usage
fi

rm -rf initrd/modules
mkdir initrd/modules

for n in $SCSIMODULES; do 
    cp /lib/modules/$2/scsi/$n ./initrd/modules
done

for n in $NETMODULES; do 
    cp /lib/modules/$2/net/$n ./initrd/modules
done

for n in $CDMODULES; do 
    cp /lib/modules/$2/cdrom/$n ./initrd/modules
done
    
for n in $MISCMODULES; do 
    cp /lib/modules/$2/misc/$n ./initrd/modules
done
    
for n in $FSMODULES; do 
    cp /lib/modules/$2/fs/$n ./initrd/modules
done

for n in $BLOCKMODULES; do 
    cp /lib/modules/$2/block/$n ./initrd/modules
done

SPACE1=`du -s initrd | awk '{print $1}'`
#echo -n "Stripping modules... "
#for n in initrd/modules/*.o; do
    #strip `nm $n | grep ' [a-z] '| awk '{ print "--strip-symbol=" $3}'` $n
#done
SPACE2=`du -s initrd | awk '{print $1}'`
#DIFF=`expr $SPACE1 - $SPACE2`
#echo "done (saved ${DIFF}k)"

echo -n "Compressing modules... "
(cd initrd/modules; gzip -9n *.o)
(cd initrd/modules; gunzip $UNGZMODULES)
SPACE1=`du -s initrd | awk '{print $1}'`
SPACE1=`du -s initrd | awk '{print $1}'`
DIFF=`expr $SPACE2 - $SPACE1`
echo "done (saved ${DIFF}k)"

for n in $PCMCIAMODULES; do 
    ln -s /lib/modules/$2/pcmcia/$n ./initrd/modules
done

for n in $LIBS; do
	# this preserves hard links
	rm -f initrd/usr/lib/$n*
	(cd /lib; tar cSpf - ${n}*) | (cd initrd/usr/lib; tar xSpf -)
done

(cd initrd/usr/lib; file * | grep 'shared object' | cut -d: -f1 | xargs strip)

cp -a keymaps/keymaps.gz initrd/etc

for n in $SBIN; do
    file=`eval echo $n`
    strip $file
    cp -f $file initrd/sbin
done

rm -f initrd/usr/lib/rpmrc
cp -a /usr/lib/rpmrc initrd/usr/lib/rpmrc

cp -f "/boot/vmlinuz-$2" boot/vmlinuz

ln -sf /sbin/init initrd/linuxrc

rm -f initrd/etc/mtab
ln -sf /proc/mounts initrd/etc/mtab

cp boot/vmlinuz $1/dosutils/autoboot/vmlinuz