#!/bin/sh
# NOTE: Ported to altboot by CoreDump <oe@hentges.net>
# Based on the original turnup helper script.
#
# All parts by Matthias 'CoreDump' Hentges are hereby placed
# under the terms of the GPL
#
# boot from the hard disk partition "$1" (which
# must be given) using options from the rest of
# the command line.
#

M_TITLE="Boot USB Storage"
test "$USB_HOST_AVAILABLE" = "yes" || exit 0

run_module() {
	x=x
}

case "$1" in
title)	echo "$M_TITLE" ; exit 0 ;;
run)	run_module "$2";;
esac

nslu2_feeback heartbeat

bootdev_data="$*"
bootdev_mode="`echo "$bootdev_data" | awk '{print $1}'`"
bootdev_name="`echo "$bootdev_data" | awk '{print $2}'`"
bootdev_uuid="`echo "$bootdev_data" | awk '{print $3}'`"				


# Use the standard init path (see /etc/init.d/rcS)
export PATH=/sbin:/bin:/usr/sbin:/usr/bin
#
# Load the helper functions
. /etc/default/functions
. /etc/default/modulefunctions
#
leds boot system
#
if test -n "$1"
then
	device="$bootdev_name"
	UUID="$bootdev_uuid"
	
	shift
        # proc is needed for UUID mount and module load
        mount -t proc proc /proc
        # load USB & SCSI storage modules (/proc required!)
        echo "boot: loading modules required for disk boot"
        loaddiskmods
	# waiting for disk (FIXME)
	sleep=6
	test "$sleep" -gt 0 && sleep "$sleep"
	#
	# fire the boot
	echo "boot: rootfs: mount $* $device [$UUID]"
	#
	# Mount read-write because before exec'ing init
	# If a UUID is given (in the environment) this
	# is used in preference to the device, but if
	# the UUID mount fails a standard device mount
	# is attempted.
	if	test -n "$UUID" &&
		mount "$@" -U "$UUID" /mnt ||
		mount "$@" "$device" /mnt
	then
		# checkmount checks for sh, chroot, init
		# and /mnt (i.e. /mnt/mnt in this case)
		if checkmount /mnt
		then
			# pivot to /initrd if available, else /mnt
			cd /
			if test -d /mnt/initrd
			then
				swivel mnt initrd
			else
				swivel mnt mnt
			fi
			# swivel failed
		fi
		# Failure: unmount the partition
		umount /mnt
	fi
fi

# fallback - use the flash boot
nslu2_feeback failure
exec /boot/flash