# !/bin/sh
#
# Copyright Matthias Hentges (c) 2005
#
# License: GPL (see http://www.gnu.org/licenses/gpl.txt for a copy of the GPL)


M_TITLE="Boot SD card"

die() {
	echo "ERROR: $1" >/dev/tty0
	exec $SH_SHELL </dev/tty0 >/dev/tty0 2>&1
}

# This function is activated by init.altboot by calling this script with the "run" option
run_module() {
	
	test -e /etc/altboot.func && . /etc/altboot.func || die "ERROR: /etc/altboot.func not found. Check your installation!"
	
	echo -n "Mounting rootfs rw..." >/dev/tty0
	mount -o remount,rw / >/dev/tty0 2>&1 && echo ok  >/dev/tty0|| die "mount -o remount,rw / failed"

	echo -n "Generating device files..." >/dev/tty0
	/etc/init.d/devices start && echo ok  >/dev/tty0|| die "FAILED"

	# We can't trust that the SD device file is there when running kernel 2.6 w/ udev
	# Starting udev at this point may not be the best idea...
#	echo "*1*"
	if `uname -r | grep -q "2.6"`
	then
		#echo "***"
		dev_no="`echo "$SD_DEVICE" | sed -n "s/\/dev\/mmcblk\(.*\)p\(.*\)/\1/p"`"
		part_no="`echo "/dev/mmcblk0p1" | sed -n "s/\/dev\/mmcblk\(.*\)p\(.*\)/\2/p"`"
		! test -e /dev/mmcblk${dev_no} && mknod /dev/mmcblk${dev_no} b 254 0
		! test -e /dev/mmcblk${dev_no}p${part_no} && mknod /dev/mmcblk${dev_no}p${part_no} b 254 $part_no
		
		#echo "[mknod /dev/mmcblk${dev_no}p${part_no}]"
	fi
	
	if test -n "$SD_KERNEL_MODULE"
	then
		echo -n "Loading SD kernel module..."
		/sbin/insmod $SD_KERNEL_MODULE >/dev/null 2>&1 && echo ok || die "insmod failed"
	fi

	echo -n "Mounting $SD_MOUNTPOINT..."  >/dev/tty0
	/bin/mount -t auto -o defaults,noatime $SD_DEVICE $SD_MOUNTPOINT >/dev/null 2>&1 && echo ok  >/dev/tty0|| die "/bin/mount -t auto -o defaults,noatime $SD_DEVICE $SD_MOUNTPOINT failed"
		
	echo ""

	# Give the SD and CF mounting some time. This is a must for SD			
	sleep 2
	
	# Check for a real fs and loop-images.
	check_target "$SD_MOUNTPOINT" >/dev/tty0
		
}


case "$1" in
title)	echo "$M_TITLE";;
run)	run_module "$2";;
esac