#!/bin/sh

echo "pl_sysinit: bringing system online"

echo "pl_sysinit: mounting file systems"
/bin/mount -v -a

echo "pl_sysinit: invoking hardware initialization script"
/etc/init.d/pl_hwinit

echo "pl_sysinit: finding cd to mount on /usr"
test_devices=/sys/block/*
mounted=0
initrd_version=$(/bin/cat /pl_version)
mkdir /usr

for device in $test_devices; do
    device=$(/bin/basename $device)

    # skipping any devices that start with md or ra (ram) or lo (loop) or
    # fd (floppy)
    start_device=${device:0:2}
    if [ "$start_device" == "ra" ] || [ "$start_device" == "md" ] ||
	[ "$start_device" == "lo" ] || [ "$start_device" == "fd" ]; then
	continue
    fi
    
    echo "pl_sysinit: checking $device for /usr contents"
    /bin/mount -o ro -t iso9660 /dev/$device /usr 2>&1 > /dev/null
    if [ $? -eq 0 ]; then
	# it mounted, but we should probably make sure its our boot cd
	# this can be done by making sure the /pl_version file (on initrd)
	# matches /usr/isolinux/pl_version
	cd_version=$(/bin/cat /usr/isolinux/pl_version)

	if [ "$initrd_version" != "$cd_version" ]; then
	    # eh, wrong cd, keep trying
	    /bin/umount /usr 2>&1 /dev/null
	else
	    echo "pl_sysinit: found cd and mounted on /usr"
	    mounted=1
	    break
	fi
    fi
done

if [ $mounted -eq 0 ]; then
    echo "pl_sysinit: unable to find boot cdrom, cannot continue."
    # todo: maybe we can put a staticly linked sshd here
    /sbin/shutdown -h now
fi


# parts of this were copied from devmap_mknod.sh from the device-mapper
# source. Since fedora decided not to include it in the rpm, it is 
# being copied here
echo "pl_sysinit: creating device mapper control node"

DM_DIR="mapper"
DM_NAME="device-mapper"
DIR="/dev/$DM_DIR"
CONTROL="$DIR/control"

MAJOR=$(sed -n 's/^ *\([0-9]\+\) \+misc$/\1/p' /proc/devices)
MINOR=$(sed -n "s/^ *\([0-9]\+\) \+$DM_NAME\$/\1/p" /proc/misc)

if [ -n "$MAJOR" ] && [ -n "$MINOR" ]; then
    /bin/mkdir -p --mode=755 $DIR
    /bin/rm -f $CONTROL
    /bin/mknod --mode=600 $CONTROL c $MAJOR $MINOR
else
    echo "pl_sysinit: unable to create device mapper control node, continuing"
fi


echo "pl_sysinit: bringing network online"
/etc/init.d/pl_netinit