#!/bin/sh

#set -e

# initramfs-tools header

PREREQ=""
FSTAB=/root/etc/fstab

prereqs()
{
	echo "${PREREQ}"
}

case "${1}" in
	prereqs)
		prereqs
		exit 0
		;;
esac

# live-boot header

. /scripts/live-functions

if [ -n "${NOFSTAB}" ]
then
	exit 0
fi

log_begin_msg "Configuring fstab"

# live-boot script

# Create a fake fstab only if it doesn't exist or if its the debootstrap template
if [ ! -f "${FSTAB}" ] || grep -qs 'UNCONFIGURED FSTAB FOR BASE SYSTEM' "${FSTAB}"
then

cat > ${FSTAB} << EOF
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

EOF

fi

if ! grep -qs  "^${UNIONTYPE}" "${FSTAB}"
then
	echo "${UNIONTYPE} / ${UNIONTYPE} rw 0 0" >> "${FSTAB}"
fi

if ! grep -qs "^tmpfs /tmp" "${FSTAB}"
then
	echo "tmpfs /tmp tmpfs nosuid,nodev 0 0" >> "${FSTAB}"
fi

if [ -n "${SWAPON}" ]
then
	devices=""

	for device in /dev/[hs]d[a-z][0-9]*
	do
		if ! [ -b "${device}" ]
		then
			continue
		fi

		# udev (>= 146) no longer provides vol_id
		if [ -x /lib/udev/vol_id ]
		then
			# lenny
			/lib/udev/vol_id ${device%%[0-9]*} 2>/dev/null | grep -q "^ID_FS_USAGE=raid" && continue
		else
			# squeeze
			/sbin/blkid -o udev -p ${device%%[0-9]*} | grep -q "^ID_FS_USAGE=raid" && continue
		fi

		magic=$(/bin/dd if="${device}" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue

		if [ "${magic}" = "SWAPSPACE2" -o "${magic}" = "SWAP-SPACE" ]
		then
			#log "Found ${device}"
			devices="${devices} ${device}"
		fi
	done

	# Remove all auto swap entries
	if grep -qs  "swap swap" "${FSTAB}"
	then
		grep -v "swap swap" "${FSTAB}" > "${FSTAB}".tmp
		mv "${FSTAB}".tmp "${FSTAB}"
	fi

	# Add new swap entries
	for device in ${devices}
	do
		echo "${device} swap swap defaults 0 0" >> "${FSTAB}"
	done
fi

# disabled for now
#rm -f /root/etc/rcS.d/S*checkroot.sh

if [ "${NOFASTBOOT}" != "Yes" ]
then
	touch root/fastboot
fi

log_end_msg