rm -rf roottree/lib/modules/$KERNEL/build
rm -rf roottree/lib/modules/$KERNEL/kernel/drivers/bluetooth
rm -rf roottree/lib/modules/$KERNEL/kernel/drivers/pcmcia
-rm -rf roottree/lib/modules/$KERNEL/kernel/drivers/usb
rm -rf roottree/lib/modules/$KERNEL/kernel/drivers/video
rm -rf roottree/lib/modules/$KERNEL/kernel/drivers/isdn
rm -rf roottree/lib/modules/$KERNEL/kernel/sound