# Local filesystem mounting			-*- shell-script -*-

# Parameter: Where to mount the filesystem
mountroot ()
{
	[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/local-top"
	run_scripts /scripts/local-top
	[ "$quiet" != "y" ] && log_end_msg

	# If the root device hasn't shown up yet, give it a little while
	# to deal with removable devices
	if [ ! -e "${ROOT}" ] || ! /lib/udev/vol_id "${ROOT}" >/dev/null 2>&1; then
		log_begin_msg "Waiting for root file system..."

		# Default delay is 180s
		if [ -z "${ROOTDELAY}" ]; then
			slumber=180
		else
			slumber=${ROOTDELAY}
		fi
		if [ -x /sbin/usplash_write ]; then
			/sbin/usplash_write "TIMEOUT ${slumber}" || true
		fi

		slumber=$(( ${slumber} * 10 ))
		while [ ! -e "${ROOT}" ] || ! /lib/udev/vol_id "${ROOT}" >/dev/null 2>&1; do
			/bin/sleep 0.1
			slumber=$(( ${slumber} - 1 ))
			[ ${slumber} -gt 0 ] || break
		done

		if [ ${slumber} -gt 0 ]; then
			log_end_msg 0
		else
			log_end_msg 1 || true
		fi
		if [ -x /sbin/usplash_write ]; then
			/sbin/usplash_write "TIMEOUT 15" || true
		fi
	fi

	# We've given up, but we'll let the user fix matters if they can
	while [ ! -e "${ROOT}" ]; do
		echo "	Check root= bootarg cat /proc/cmdline"
		echo "	or missing modules, devices: cat /proc/modules ls /dev"
		panic "ALERT!  ${ROOT} does not exist.  Dropping to a shell!"
	done

	# Get the root filesystem type if not set
	if [ -z "${ROOTFSTYPE}" ]; then
		eval $(fstype < ${ROOT})
	else
		FSTYPE=${ROOTFSTYPE}
	fi
	if [ "$FSTYPE" = "unknown" ] && [ -x /lib/udev/vol_id ]; then
		FSTYPE=$(/lib/udev/vol_id -t ${ROOT})
		[ -z "$FSTYPE" ] && FSTYPE="unknown"
	fi

	[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/local-premount"
	run_scripts /scripts/local-premount
	[ "$quiet" != "y" ] && log_end_msg

	if [ ${readonly} = y ] && \
	   ([ -z "$LOOP" ] || [ "${FSTYPE#ntfs}" = "$FSTYPE" ]); then
		roflag=-r
	else
		roflag=-w
	fi

	# FIXME This has no error checking
	modprobe -Qb ${FSTYPE}

	if [ "$LOOP" ]; then
		mkdir -p /host
		if [ "${ROOTFLAGS}" ]; then
			mount ${roflag} -t ${FSTYPE} ${ROOTFLAGS},sync,dirsync,commit=1 ${ROOT} /host
		else
			mount ${roflag} -t ${FSTYPE} -o sync,dirsync,commit=1 ${ROOT} /host
		fi
		
		while [ ! -e "/host/${LOOP#/}" ]; do
			panic "ALERT!  /host/${LOOP#/} does not exist.  Dropping to a shell!"
		done

		# Get the loop filesystem type if not set
		if [ -z "${LOOPFSTYPE}" ]; then
			eval $(fstype < "/host/${LOOP#/}")
		else
			FSTYPE="${LOOPFSTYPE}"
		fi
		if [ "$FSTYPE" = "unknown" ] && [ -x /lib/udev/vol_id ]; then
			FSTYPE=$(/lib/udev/vol_id -t "/host/${LOOP#/}")
			[ -z "$FSTYPE" ] && FSTYPE="unknown"
		fi

		if [ ${readonly} = y ]; then
			roflag=-r
		else
			roflag=-w
		fi

		# FIXME This has no error checking
		modprobe -Qb loop
		modprobe -Qb ${FSTYPE}

		# FIXME This has no error checking
		mount ${roflag} -o loop -t ${FSTYPE} ${LOOPFLAGS} "/host/${LOOP#/}" ${rootmnt}

		if [ -d ${rootmnt}/host ]; then
			mount -o move /host ${rootmnt}/host
		fi
	else
		# FIXME This has no error checking
		# Mount root
		mount ${roflag} -t ${FSTYPE} ${ROOTFLAGS} ${ROOT} ${rootmnt}
	fi

	[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/local-bottom"
	run_scripts /scripts/local-bottom
	[ "$quiet" != "y" ] && log_end_msg
}