X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=83114a2ac5c0b621f2e83975f337df9ba8cdf019;hb=a87047cbd1df4d17ae0bcce7db98e910ddb9cd99;hp=f539f52343005992399de5efe743f85981896b89;hpb=86cb1930ec63c3554154d4f9eec36ad3d508ec7c;p=live-boot-grml.git

diff --git a/scripts/live b/scripts/live
index f539f52..83114a2 100755
--- a/scripts/live
+++ b/scripts/live
@@ -2,859 +2,1699 @@
 
 # set -e
 
-export PATH=/root/usr/bin:/root/usr/sbin:/root/bin:/root/sbin:/usr/bin:/usr/sbin:/bin:/sbin
+export PATH="/root/usr/bin:/root/usr/sbin:/root/bin:/root/sbin:/usr/bin:/usr/sbin:/bin:/sbin"
 
 echo "/root/lib" >> /etc/ld.so.conf
 echo "/root/usr/lib" >> /etc/ld.so.conf
 
-mountpoint=/live/image
-LIVE_MEDIA_PATH="/live"
+mountpoint="/live/image"
+alt_mountpoint="/media"
+LIVE_MEDIA_PATH="live"
 
-root_persistence="live-rw"
-home_persistence="home-rw"
-root_snapshot_label="live-sn"
-home_snapshot_label="home-sn"
+HOSTNAME="host"
 
-USERNAME=user
-USERFULLNAME="Live user"
-HOSTNAME=host
-BUILD_SYSTEM=Custom
+mkdir -p "${mountpoint}"
+tried="/tmp/tried"
 
-mkdir -p $mountpoint
+# Create /etc/mtab for debug purpose and future syncs
+if [ ! -d /etc ]
+then
+	mkdir /etc/
+fi
 
-[ -f /etc/live.conf ] && . /etc/live.conf
-export USERNAME USERFULLNAME HOSTNAME BUILD_SYSTEM
+if [ ! -f /etc/mtab ]
+then
+	touch /etc/mtab
+fi
 
 . /scripts/live-helpers
 
-if [ ! -f /live.vars ]; then
-    touch /live.vars
+if [ ! -f /live.vars ]
+then
+	touch /live.vars
 fi
 
-parse_cmdline ()
+is_live_path ()
 {
-	PRESEEDS=
+	DIRECTORY="${1}"
 
-	# looking for live-initramfs specifics options as kernel parameters
+	if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
+	then
+		for FILESYSTEM in squashfs ext2 ext3 ext4 xfs dir jffs2
+		do
+			if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
+			then
+				return 0
+			fi
+		done
+	fi
 
-	for x in $(cat /proc/cmdline)
-	do
-		case $x in
-			access=*)
-				ACCESS=${x#access=}
-				export ACCESS
-				;;
+	return 1
+}
 
-			console=*)
-				DEFCONSOLE="${x#*=}"
-				export DEFCONFSOLE
-				;;
+matches_uuid ()
+{
+	if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
+	then
+		return 0
+	fi
 
-			debug)
-				DEBUG="Yes"
-				export DEBUG
+	path="${1}"
+	uuid="$(cat /conf/uuid.conf)"
 
-				set -x
-				;;
+	for try_uuid_file in "${path}/.disk/live-uuid"*
+	do
+		[ -e "${try_uuid_file}" ] || continue
 
-			hostname=*)
-				HOSTNAME=${x#hostname=}
-				LIVECONF="changed"
-				export HOSTNAME LIVECONF
-				;;
+		try_uuid="$(cat "${try_uuid_file}")"
 
-			username=*)
-				USERNAME=${x#username=}
-				LIVECONF="changed"
-				export USERNAME LIVECONF
-				;;
+		if [ "${uuid}" = "${try_uuid}" ]
+		then
+			return 0
+		fi
+	done
 
-			userfullname=*)
-				USERFULLNAME=${x#userfullname=}
-				LIVECONF="changed"
-				export USERFULLNAME LIVECONF
-				;;
+	return 1
+}
 
-			ip=*)
-				STATICIP=${x#ip=}
+get_backing_device ()
+{
+	case "${1}" in
+		*.squashfs|*.ext2|*.ext3|*.ext4|*.jffs2)
+			echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
+			;;
+
+		*.dir)
+			echo "directory"
+			;;
+
+		*)
+			panic "Unrecognized live filesystem: ${1}"
+			;;
+	esac
+}
 
-				if [ -z "${STATICIP}" ]
-				then
-					STATICIP="frommedia"
-				fi
+match_files_in_dir ()
+{
+	# Does any files match pattern ${1} ?
+	local pattern="${1}"
 
-				export STATICIP
-				;;
+	if [ "$(echo ${pattern})" != "${pattern}" ]
+	then
+		return 0
+	fi
 
-			keyb=*|kbd-chooser/method=*)
-				KBD=${x#*=}
-				export KBD
-				;;
+	return 1
+}
 
-			klayout=*|console-setup/layoutcode=*)
-				KLAYOUT=${x#*=}
-				export KLAYOUT
-				;;
+mount_images_in_directory ()
+{
+	directory="${1}"
+	rootmnt="${2}"
+	mac="${3}"
 
-			kvariant=*|console-setup/variantcode=*)
-				KVARIANT=${x#*=}
-				export KVARIANT
-				;;
 
-			kmodel=*|console-setup/modelcode=*)
-				KMODEL=${x#*=}
-				export KMODEL
-				;;
+	if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
+		match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
+		match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
+		match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext4" ||
+		match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
+		match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
+	then
+		[ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
+		setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
+	else
+		panic "No supported filesystem images found at /${LIVE_MEDIA_PATH}."
+	fi
+}
 
-			koptions=*)
-				KOPTIONS=${x#koptions=}
-				export KOPTIONS
-				;;
+is_nice_device ()
+{
+	sysfs_path="${1#/sys}"
 
-			live-getty)
-				LIVE_GETTY=1
-				export LIVE_GETTY
-				;;
+	if [ -e /lib/udev/path_id ]
+	then
+		# squeeze
+		PATH_ID="/lib/udev/path_id"
+	else
+		# wheezy/sid (udev >= 174)
+		PATH_ID="/sbin/udevadm test-builtin path_id"
+	fi
 
-			live-media=*|bootfrom=*)
-				LIVE_MEDIA=${x#*=}
-				export LIVE_MEDIA
-				;;
+	if ${PATH_ID} "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-[^-]*-(ide|sas|scsi|usb|virtio)|platform-sata_mv|platform-orion-ehci|platform-mmc|platform-mxsdhci)"
+	then
+		return 0
+	elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
+	then
+		return 0
+	elif echo ${sysfs_path} | grep -q "^/block/dm-"
+	then
+		return 0
+	elif echo ${sysfs_path} | grep -q "^/block/mtdblock"
+	then
+		return 0
+	fi
 
-			live-media-encryption=*|encryption=*)
-				LIVE_MEDIA_ENCRYPTION=${x#*=}
-				export LIVE_MEDIA_ENCRYPTION
-				;;
+	return 1
+}
 
-			live-media-offset=*)
-				LIVE_MEDIA_OFFSET=${x#live-media-offset=}
-				export LIVE_MEDIA_OFFSET
-				;;
+copy_live_to ()
+{
+	copyfrom="${1}"
+	copytodev="${2}"
+	copyto="${copyfrom}_swap"
 
-			live-media-path=*)
-				LIVE_MEDIA_PATH="${x#live-media-path=}"
-				export LIVE_MEDIA_PATH
-				;;
+	if [ -z "${MODULETORAM}" ]
+	then
+		size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "used")
+	else
+		MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
 
-			live-media-timeout=*)
-				LIVE_MEDIA_TIMEOUT=${x#live-media-timeout=}
-				export LIVE_MEDIA_TIMEOUT
-				;;
+		if [ -f "${MODULETORAMFILE}" ]
+		then
+			size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
+		else
+			log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
+			return 1
+		fi
+	fi
 
-			locale=*|debian-installer/locale=*)
-				LOCALE=${x#*=}
-				export LOCALE
-				;;
+	if [ "${copytodev}" = "ram" ]
+	then
+		# copying to ram:
+		freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
+		mount_options="-o size=${size}k"
+		free_string="memory"
+		fstype="tmpfs"
+		dev="/dev/shm"
+	else
+		# it should be a writable block device
+		if [ -b "${copytodev}" ]
+		then
+			dev="${copytodev}"
+			free_string="space"
+			fstype=$(get_fstype "${dev}")
+			freespace=$(fs_size "${dev}")
+		else
+			log_warning_msg "${copytodev} is not a block device."
+			return 1
+		fi
+	fi
 
-			module=*)
-				MODULE=${x#module=}
-				export MODULE
-				;;
+	if [ "${freespace}" -lt "${size}" ]
+	then
+		log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
+		return 1
+	fi
 
-			netboot=*)
-				NETBOOT=${x#netboot=}
-				export NETBOOT
-				;;
+	# Custom ramdisk size
+	if [ -z "${mount_options}" ] && [ -n "${ramdisk_size}" ]
+	then
+		# FIXME: should check for wrong values
+		mount_options="-o size=${ramdisk_size}"
+	fi
 
-			nfsopts=*)
-				NFSOPTS=${x#nfsopts=}
-				export NFSOPTS
-				;;
+	# begin copying (or uncompressing)
+	mkdir "${copyto}"
+	log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
+	mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 
-			noautologin)
-				NOAUTOLOGIN="Yes"
-				export NOAUTOLOGIN
-				;;
+	if [ "${extension}" = "tgz" ]
+	then
+		cd "${copyto}"
+		tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
+		rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
+		mount -r -o move "${copyto}" "${rootmnt}"
+		cd "${OLDPWD}"
+	else
+		if [ -n "${MODULETORAMFILE}" ]
+		then
+			if [ -x /bin/rsync ]
+			then
+				echo " * Copying $MODULETORAMFILE to RAM" 1>/dev/console
+				rsync -a --progress ${MODULETORAMFILE} ${copyto} 1>/dev/console # copy only the filesystem module
+			else
+				cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
+			fi
+		else
+			if [ -x /bin/rsync ]
+			then
+				echo " * Copying whole medium to RAM" 1>/dev/console
+				rsync -a --progress ${copyfrom}/* ${copyto} 1>/dev/console  # "cp -a" from busybox also copies hidden files
+			else
+				mkdir -p ${copyto}/${LIVE_MEDIA_PATH}
+				cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/* ${copyto}/${LIVE_MEDIA_PATH}
+				if [ -e ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ]
+				then
+					cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ${copyto}
+				fi
+			fi
+		fi
 
-			noxautologin)
-				NOXAUTOLOGIN="Yes"
-				export NOXAUTOLOGIN
-				;;
+		umount ${copyfrom}
+		mount -r -o move ${copyto} ${copyfrom}
+	fi
 
-			nofastboot)
-				NOFASTBOOT="Yes"
-				export NOFASTBOOT
-				;;
+	rmdir ${copyto}
+	return 0
+}
 
-			nopersistent)
-				PERSISTENT=""
-				export PERSISTENT
-				;;
+do_netsetup ()
+{
+	modprobe -q af_packet # For DHCP
 
-			nosudo)
-				NOSUDO="Yes"
-				export NOSUDO
-				;;
+	udevadm trigger
+	udevadm settle
 
-			noswap)
-				NOSWAP="Yes"
-				export NOSWAP
-				;;
+	[ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
+	echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
 
-			persistent)
-				PERSISTENT="Yes"
-				export PERSISTENT
-				;;
+	if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \
+	   [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
+	then
 
-			preseed/file=*|file=*)
-				LOCATION="${x#*=}"
-				export LOCATION
-				;;
 
-			url=*)
-				LOCATION="${x#url=}"
+	# support for Syslinux IPAPPEND parameter
+	# it sets the BOOTIF variable on the kernel parameter
 
-				mount -n -o bind /sys /root/sys
-				mount -n -o bind /proc /root/proc
-				mount -n -o bind /dev /root/dev
+	if [ -n "${BOOTIF}" ]
+	then
+		# pxelinux sets BOOTIF to a value based on the mac address of the
+		# network card used to PXE boot, so use this value for DEVICE rather
+		# than a hard-coded device name from initramfs.conf. this facilitates
+		# network booting when machines may have multiple network cards.
+		# pxelinux sets BOOTIF to 01-$mac_address
+
+		# strip off the leading "01-", which isn't part of the mac
+		# address
+		temp_mac=${BOOTIF#*-}
+
+		# convert to typical mac address format by replacing "-" with ":"
+		bootif_mac=""
+		IFS='-'
+		for x in $temp_mac
+		do
+			if [ -z "$bootif_mac" ]
+			then
+				bootif_mac="$x"
+			else
+				bootif_mac="$bootif_mac:$x"
+			fi
+		done
+		unset IFS
 
-				mkdir -p /root/var/run/network
-				chroot /root ifup -a
-				chroot /root wget -P /tmp "$location"
-				chroot /root ifdown -a
+		# look for devices with matching mac address, and set DEVICE to
+		# appropriate value if match is found.
 
-				umount /root/sys
-				umount /root/proc
-				umount /root/dev
+		for device in /sys/class/net/*
+		do
+			if [ -f "$device/address" ]
+			then
+				current_mac=$(cat "$device/address")
 
-				LOCATION="/tmp/$(basename "$location")"
-				;;
+				if [ "$bootif_mac" = "$current_mac" ]
+				then
+					DEVICE=${device##*/}
+					break
+				fi
+			fi
+		done
+	fi
 
-			*/*=*)
-				question="${x%%=*}"
-				value="${x#*=}"
-				PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
+	# if ethdevice was not specified on the kernel command line
+	# make sure we try to get a working network configuration
+	# for *every* present network device (except for loopback of course)
+	if [ -z "$ETHDEVICE" ] ; then
+		echo "If you want to boot from a specific device use bootoption ethdevice=..."
+		for device in /sys/class/net/*; do
+			dev=${device##*/} ;
+			if [ "$dev" != "lo" ] ; then
+				ETHDEVICE="$ETHDEVICE $dev"
+			fi
+		done
+	fi
 
-				export PRESEEDS
-				;;
+	# split args of ethdevice=eth0,eth1 into "eth0 eth1"
+	for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
+		devlist="$devlist $device"
+	done
 
-			showmounts)
-				SHOWMOUNTS="Yes"
-				export SHOWMOUNTS
-				;;
+	# this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
+	# an endless loop; if execution fails give it two further tries, that's
+	# why we use '$devlist $devlist $devlist' for the other for loop
+	for dev in $devlist $devlist $devlist ; do
+		echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
+		ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config &
+		jobid=$!
+		sleep "$ETHDEV_TIMEOUT" ; sleep 1
+		if [ -r /proc/"$jobid"/status ] ; then
+			echo "Killing job $jobid for device $dev as ipconfig ran into recursion..."
+			kill -9 $jobid
+		fi
 
-			timezone=*)
-				TIMEZONE="${x#timezone=}"
-				export TIMEZONE
-				;;
+		# if configuration of device worked we should have an assigned
+		# IP address, if so let's use the device as $DEVICE for later usage.
+		# simple and primitive approach which seems to work fine
+		if ifconfig $dev | grep -q 'inet.*addr:' ; then
+			export DEVICE="$dev"
+			break
+		fi
+	done
 
-			todisk=*)
-				TODISK=${x#todisk=}
-				export TODISK
-				;;
+	else
+		for interface in ${DEVICE}; do
+			ipconfig -t "$ETHDEV_TIMEOUT" ${interface} | tee /netboot-${interface}.config
+			[ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
+			if [ "$IPV4ADDR" != "0.0.0.0" ]
+			then
+				break
+			fi
+		done
+	fi
 
-			toram)
-				TORAM="Yes"
-				export TORAM
-				;;
+	for interface in ${DEVICE}; do
+		# source relevant ipconfig output
+		OLDHOSTNAME=${HOSTNAME}
+		[ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
+		[ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
+		export HOSTNAME
 
-			union=*)
-				UNIONTYPE="${x#union=}"
-				export UNIONTYPE
-				;;
+		if [ -n "${interface}" ]
+		then
+			HWADDR="$(cat /sys/class/net/${interface}/address)"
+		fi
 
-			utc=*)
-				UTC="${x#utc=}"
-				export UTC
-				;;
+		if [ ! -e "/etc/resolv.conf" ]
+		then
+			echo "Creating /etc/resolv.conf"
 
-			xdebconf)
-				XDEBCONF="Yes"
-				export XDEBCONF
-				;;
+			if [ -n "${DNSDOMAIN}" ]
+			then
+				echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
+				echo "search ${DNSDOMAIN}" >> /etc/resolv.conf
+			fi
 
-			xvideomode=*)
-				XVIDEOMODE="${x#xvideomode=}"
-				export XVIDEOMODE
-				;;
-		esac
-	done
+			for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
+			do
+				if [ -n "$i" ] && [ "$i" != 0.0.0.0 ]
+				then
+					echo "nameserver $i" >> /etc/resolv.conf
+				fi
+			done
+		fi
 
-	# sort of compatibility with netboot.h from linux docs
-	if [ -z "${NETBOOT}" ]
-	then
-		if [ "${ROOT}" = "/dev/nfs" ]
-		then
-			NETBOOT="nfs"
-			export NETBOOT
-		elif [ "${ROOT}" = "/dev/cifs" ]
+		# Check if we have a network device at all
+		if ! ls /sys/class/net/"$interface" > /dev/null 2>&1 && \
+		   ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
+		   ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
+		   ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
+		   ! ls /sys/class/net/ra0 > /dev/null 2>&1
 		then
-			NETBOOT="cifs"
-			export NETBOOT
+			panic "No supported network device found, maybe a non-mainline driver is required."
 		fi
+	done
+}
+
+do_netmount()
+{
+	do_netsetup
+
+	if [ "${NFSROOT}" = "auto" ]
+	then
+		NFSROOT=${ROOTSERVER}:${ROOTPATH}
+	fi
+
+	rc=1
+
+	if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
+	then
+		do_httpmount
+		return $?
 	fi
 
-	if [ -z "${MODULE}" ]
+	if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
 	then
-		MODULE="filesystem"
-		export MODULE
+		NFSROOT=${ROOTSERVER}:${NFSROOT}
 	fi
 
-	if [ -z "${UNIONTYPE}" ]
+	log_begin_msg "Trying netboot from ${NFSROOT}"
+
+	if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
+	then
+		rc=0
+	elif do_nfsmount
 	then
-		UNIONTYPE="unionfs"
-		export UNIONTYPE
+		NETBOOT="nfs"
+		export NETBOOT
+		rc=0
 	fi
+
+	log_end_msg
+	return ${rc}
 }
 
-is_live_path()
+do_iscsi()
 {
-	DIRECTORY="${1}"
-
-	if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
+	do_netsetup
+	#modprobe ib_iser
+	modprobe iscsi_tcp
+	local debugopt=""
+	[ "${DEBUG}" = "Yes" ] && debugopt="-d 8"
+	#FIXME this name is supposed to be unique - some date + ifconfig hash?
+	ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
+	export ISCSI_INITIATORNAME
+	if [ -n "${ISCSI_SERVER}" ] ; then
+		iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
+	else
+		iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
+	fi
+	if [ $? != 0 ]
+	then
+		panic "Failed to log into iscsi target"
+	fi
+	local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
+			    /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
+	if [ -n "${host}" ]
 	then
-		for FILESYSTEM in squashfs ext2 ext3 xfs dir
+		local devices=""
+		local i=0
+		while [ -z "${devices}" -a $i -lt 60 ]
 		do
-			if [ "`echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}`" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
+			sleep 1
+			devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
+					 /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
+			i=$(expr $i + 1)
+			echo -ne $i\\r
+		done
+		for dev in $devices
+		do
+			if check_dev "null" "/dev/$dev"
 			then
-				return 0
+				NETBOOT="iscsi"
+				export NETBOOT
+				return 0;
 			fi
 		done
+		panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
+	else
+		panic "Failed to locate iSCSI host in /sys"
 	fi
-
-	return 1
-}
-
-get_backing_device() {
-    case "$1" in
-        *.squashfs|*.ext2|*.ext3)
-            echo $(setup_loop "$1" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}")
-            ;;
-        *.dir)
-            echo "directory"
-            ;;
-        *)
-            panic "Unrecognized live filesystem: $1"
-            ;;
-    esac
 }
 
-match_files_in_dir() {
-    # Does any files match pattern $1 ?
-
-    local pattern="$1"
-    if [ "$(echo $pattern)" != "$pattern" ]; then
-        return 0
-    fi
-    return 1
-}
+do_httpmount ()
+{
+	rc=1
 
-mount_images_in_directory() {
-    directory="$1"
-    rootmnt="$2"
-    if match_files_in_dir "$directory/${LIVE_MEDIA_PATH}/*.squashfs" ||
-        match_files_in_dir "$directory/${LIVE_MEDIA_PATH}/*.ext2" ||
-        match_files_in_dir "$directory/${LIVE_MEDIA_PATH}/*.ext3" ||
-        match_files_in_dir "$directory/${LIVE_MEDIA_PATH}/*.dir"; then
-        setup_unionfs "$directory/${LIVE_MEDIA_PATH}" "$rootmnt"
-    else
-        :
-    fi
-}
+	for webfile in HTTPFS FTPFS FETCH
+	do
+		local url="$(eval echo \"\$\{${webfile}\}\")"
+		local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
 
-is_nice_device() {
-    sysfs_path="${1#/sys}"
-    if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"; then
-        return 0
-    fi
-    return 1
-}
+		if [ -n "$url" ]
+		then
+			case "${extension}" in
+				iso|squashfs|tgz|tar)
+					if [ "${extension}" = "iso" ]
+					then
+						mkdir -p "${alt_mountpoint}"
+						dest="${alt_mountpoint}"
+					else
+						local dest="${mountpoint}/${LIVE_MEDIA_PATH}"
+						mount -t ramfs ram "${mountpoint}"
+						mkdir -p "${dest}"
+					fi
+					if [ "${webfile}" = "FETCH" ]
+					then
+						case "$url" in
+							tftp*)
+								ip="$(dirname $url | sed -e 's|tftp://||g' -e 's|/.*$||g')"
+								rfile="$(echo $url | sed -e "s|tftp://$ip||g")"
+								lfile="$(basename $url)"
+								log_begin_msg "Trying tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip"
+								tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip
+							;;
+
+							*)
+								log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
+								wget "${url}" -O "${dest}/$(basename ${url})"
+								;;
+						esac
+					else
+						log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
+						if [ "${webfile}" = "FTPFS" ]
+						then
+							FUSE_MOUNT="curlftpfs"
+							url="$(dirname ${url})"
+						else
+							FUSE_MOUNT="httpfs"
+						fi
+						modprobe fuse
+						$FUSE_MOUNT "${url}" "${dest}"
+						ROOT_PID="$(minips h -C "$FUSE_MOUNT" | { read x y ; echo "$x" ; } )"
+					fi
+					[ ${?} -eq 0 ] && rc=0
+					[ "${extension}" = "tgz" ] && live_dest="ram"
+					if [ "${extension}" = "iso" ]
+					then
+						isoloop=$(setup_loop "${dest}/$(basename "${url}")" "loop" "/sys/block/loop*" "" '')
+						mount -t iso9660 "${isoloop}" "${mountpoint}"
+						rc=${?}
+					fi
+					break
+					;;
+
+				*)
+					log_begin_msg "Unrecognized archive extension for ${url}"
+					;;
+			esac
+		fi
+	done
 
-is_supported_fs () {
-    # FIXME: do something better like the scan of supported filesystems
-    fstype="${1}"
-    case ${fstype} in
-        vfat|iso9660|udf|ext2|ext3|ntfs)
-            return 0
-            ;;
-    esac
-    return 1
-}
+	if [ ${rc} != 0 ]
+	then
+		if [ -d "${alt_mountpoint}" ]
+		then
+		        umount "${alt_mountpoint}"
+			rmdir "${alt_mountpoint}"
+		fi
+		umount "${mountpoint}"
+	elif [ "${webfile}"  != "FETCH" ] ; then
+		NETBOOT="${webfile}"
+		export NETBOOT
+	fi
 
-copy_live_to() {
-    copyfrom="${1}"
-    copytodev="${2}"
-    copyto="${copyfrom}_swap"
-
-    size=$(fs_size "" ${copyfrom} "used")
-
-    if [ "${copytodev}" = "ram" ]; then
-        # copying to ram:
-        freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ) )
-        mount_options="-o size=${size}k"
-        free_string="memory"
-        fstype="tmpfs"
-        dev="/dev/shm"
-    else
-        # it should be a writable block device
-        if [ -b "${copytodev}" ]; then
-            dev="${copytodev}"
-            free_string="space"
-            fstype=$(get_fstype "${dev}")
-            freespace=$(fs_size "${dev}")
-        else
-            [ "$quiet" != "y" ] && log_warning_msg "${copytodev} is not a block device."
-            return 1
-        fi
-    fi
-    if [ "${freespace}" -lt "${size}" ] ; then
-        [ "$quiet" != "y" ] && log_warning_msg "Not enough free ${free_string} (${freespace}k > ${size}k) to copy live media in ${copytodev}."
-        return 1
-    fi
-
-    # begin copying..
-    mkdir "${copyto}"
-    echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
-    mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
-    cp -a ${copyfrom}/* ${copyto} # "cp -a" from busybox also copies hidden files
-    umount ${copyfrom}
-    mount -r --move ${copyto} ${copyfrom}
-    rmdir ${copyto}
-    return 0
+	return ${rc}
 }
 
-do_netmount() {
-    rc=1
-
-    modprobe "${MP_QUIET}" af_packet # For DHCP
+do_nfsmount ()
+{
+	rc=1
 
-    udevtrigger
-    udevsettle
+	modprobe -q nfs
 
-    ipconfig ${DEVICE} /tmp/net-${DEVICE}.conf | tee /netboot.config
+	if [ -n "${NFSOPTS}" ]
+	then
+		NFSOPTS="-o ${NFSOPTS}"
+	fi
 
-    if [ "${NFSROOT}" = "auto" ]; then
-        NFSROOT=${ROOTSERVER}:${ROOTPATH}
-    fi
+	log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
 
-    # source relevant ipconfig output
-    . /tmp/net-${DEVICE}.conf
-    export HOSTNAME
+	# FIXME: This while loop is an ugly HACK round an nfs bug
+	i=0
+	while [ "$i" -lt 60 ]
+	do
+		nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
+		sleep 1
+		i="$(($i + 1))"
+	done
 
-    if [ "${NFSROOT#*:}" = "$NFSROOT" ] && [ "$NETBOOT" != "cifs" ]; then
-	NFSROOT=${ROOTSERVER}:${NFSROOT}
-    fi
+	return ${rc}
+}
 
-    [ "$quiet" != "y" ] && log_begin_msg "Trying netboot from ${NFSROOT}"
+do_cifsmount ()
+{
+	rc=1
 
-    if [ "${NETBOOT}" != "nfs" ] && do_cifsmount ; then
-        rc=0
-    elif do_nfsmount ; then
-        NETBOOT="nfs"
-        export NETBOOT
-        rc=0
-    fi
+	if [ -x "/sbin/mount.cifs" ]
+	then
+		if [ -z "${NFSOPTS}" ]
+		then
+			CIFSOPTS="-ouser=root,password="
+		else
+			CIFSOPTS="-o ${NFSOPTS}"
+		fi
 
-    [ "$quiet" != "y" ] && log_end_msg
-    return ${rc}
-}
+		log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
+		modprobe -q cifs
 
-do_nfsmount() {
-    rc=1
-    modprobe "${MP_QUIET}" nfs
-    if [ -z "${NFSOPTS}" ]; then
-        NFSOPTS=""
-    fi
-
-    [ "$quiet" != "y" ] && log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
-    # FIXME: This for loop is an ugly HACK round an nfs bug
-    for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13; do
-        nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
-        sleep 1
-    done
-    return ${rc}
-}
+		if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
+		then
+			rc=0
+		fi
+	fi
 
-do_cifsmount() {
-    rc=1
-    if [ -x "/sbin/mount.cifs" ]; then
-        if [ -z "${NFSOPTS}" ]; then
-            CIFSOPTS="-ouser=root,password="
-        else
-            CIFSOPTS="${NFSOPTS}"
-        fi
-
-        [ "$quiet" != "y" ] && log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
-        modprobe "${MP_QUIET}" cifs
-
-        if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}" ; then
-            rc=0
-        fi
-    fi
-    return ${rc}
+	return ${rc}
 }
 
 do_snap_copy ()
 {
-    fromdev="${1}"
-    todir="${2}"
-    snap_type="${3}"
-
-    size=$(fs_size "${fromdev}" "" "used")
-
-    if [ -b "${fromdev}" ]; then
-        # look for free mem
-        if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]; then
-            todev=$(cat /proc/mounts | grep -s " $(base_path ${todir}) " | awk '{print $1}' )
-            freespace=$(df -k  | grep -s ${todev} | awk '{print $4}')
-        else
-            freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ))
-        fi
-
-        tomount="/mnt/tmpsnap"
-        if [ ! -d "${tomount}" ] ; then
-            mkdir -p "${tomount}"
-        fi
-
-        fstype=$(get_fstype "${fromdev}")
-        if [ -n "${fstype}" ]; then
-            # Copying stuff...
-            mount -t "${fstype}" -o ro "${fromdev}" "${tomount}"
-            cp -a "${tomount}"/* ${todir}
-            umount "${tomount}"
-        else
-            log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
-        fi
-
-        rmdir "${tomount}"
-        if echo ${fromdev} | grep -qs loop; then
-           losetup -d "${fromdev}"
-        fi
-        return 0
-    else
-        return 1
-        [ "$quiet" != "y" ] && log_warning_msg "Unable to find the snapshot ${snap_type} medium"
-    fi
-}
+	fromdev="${1}"
+	todir="${2}"
+	snap_type="${3}"
+	size=$(fs_size "${fromdev}" "" "used")
 
-try_snap ()
-{
-    # Look for $snap_label.* in block devices and copy the contents to $snap_mount
-    #   and remember the device and filename for resync on exit in live-initramfs.init
-
-    snap_label="${1}"
-    snap_mount="${2}"
-    snap_type="${3}"
-
-    snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3")
-    if [ ! -z "${snapdata}" ]; then
-        snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
-        snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
-        snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
-        if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\)'; then
-            # squashfs or ext2/ext3 snapshot
-            dev=$(get_backing_device "${snapback}/${snapfile}")
-            if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"; then
-                 log_warning_msg "Impossible to include the ${snapfile} Snapshot"
-                 return 1
-            fi
-        else
-            # cpio.gz snapshot
-            if ! (cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | cpio -i -u -d 2>/dev/null) ; then
-                log_warning_msg "Impossible to include the ${snapfile} Snapshot"
-                return 1
-            fi
-        fi
-        umount "${snapback}"
-    else
-        dev=$(find_cow_device "${snap_label}")
-        if [ -b ${dev} ]; then
-            if echo "${dev}" | grep -qs loop; then
-                # strange things happens, user confused?
-                snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
-                snapfile=$(basename ${snaploop})
-                snapdev=$(cat /proc/mounts | awk '{print $2,$1}' | grep -es "^$( dirname ${snaploop} )" | cut -f2 -d ' ')
-            else
-                snapdev="${dev}"
-            fi
-            if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" ; then
-                log_warning_msg "Impossible to include the ${snap_label} Snapshot"
-                return 1
-            else
-                if [ -n "${snapfile}" ]; then
-                     # it was a loop device, user confused
-                     umount ${snapdev}
-                fi
-            fi
-        else
-            log_warning_msg "Impossible to include the ${snap_label} Snapshot"
-            return 1
-        fi
-    fi
-    echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt
-    return 0
-}
+	if [ -b "${fromdev}" ]
+	then
+		log_success_msg "Copying snapshot ${fromdev} to ${todir}..."
+
+		# look for free mem
+		if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
+		then
+			todev=$(awk -v pat="$(base_path ${todir})" '$2 == pat { print $1 }' /proc/mounts)
+			freespace=$(df -k | awk '/'${todev}'/{print $4}')
+		else
+			freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
+		fi
+
+		tomount="/mnt/tmpsnap"
 
-setup_unionfs() {
-    image_directory="$1"
-    rootmnt="$2"
+		if [ ! -d "${tomount}" ]
+		then
+			mkdir -p "${tomount}"
+		fi
 
-    modprobe "${MP_QUIET}" -b ${UNIONTYPE}
+		fstype=$(get_fstype "${fromdev}")
 
-    # run-init can't deal with images in a subdir, but we're going to
-    # move all of these away before it runs anyway.  No, we're not,
-    # put them in / since move-mounting them into / breaks mono and
-    # some other apps.
+		if [ -n "${fstype}" ]
+		then
+			# Copying stuff...
+			mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
+			cp -a "${tomount}"/* ${todir}
+			umount "${tomount}"
+		else
+			log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
+		fi
 
-    croot="/"
+		rmdir "${tomount}"
 
-    # Let's just mount the read-only file systems first
-    rofsstring=""
-    rofslist=""
-    if [ "${NETBOOT}" = "nfs" ] ; then
-        roopt="nfsro" # go aroung a bug in nfs-unionfs locking
-    else
-        roopt="ro"
-    fi
+		if echo ${fromdev} | grep -qs loop
+		then
+			losetup -d "${fromdev}"
+		fi
 
-	# Read image names from ${MODULE}.module if it exists
-	if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
-	then
-		for IMAGE in `cat ${image_directory}/filesystem.${MODULE}.module`
-		do
-			image_string="${image_string} ${image_directory}/${image}"
-		done
-	elif [ -e "${image_directory}/${MODULE}.module" ]
-	then
-		for IMAGE in `cat ${image_directory}/${MODULE}.module`
-		do
-			image_string="${image_string} ${image_directory}/${image}"
-		done
+		return 0
 	else
-		# ${MODULE}.module does not exist, create a list of images
-		for FILESYSTEM in squashfs ext2 ext3 xfs dir
-		do
-			for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
-			do
-				if [ -e "${IMAGE}" ]
-				then
-					image_string="${image_string} ${IMAGE}"
-				fi
-			done
-		done
-
-		# Now sort the list
-		image_string="`echo ${image_string} | sed -e 's/ /\n/g' | sort `"
-	fi
-
-    mkdir -p "${croot}"
-    for image in ${image_string}; do
-        imagename=$(basename "${image}")
-        if [ -d "${image}" ]; then
-            # it is a plain directory: do nothing
-            rofsstring="${image}=${roopt}:${rofsstring}"
-            rofslist="${image} ${rofslist}"
-        elif [ -f "${image}" ]; then
-            backdev=$(get_backing_device "$image")
-            fstype=$(get_fstype "${backdev}")
-            if [ "${fstype}" = "unknown" ]; then
-                panic "Unknown file system type on ${backdev} (${image})"
-             fi
-            mkdir -p "${croot}/${imagename}"
-            mount -t "${fstype}" -o ro "${backdev}" "${croot}/${imagename}" || panic "Can not mount $backdev ($image) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
-        fi
-    done
-    rofsstring=${rofsstring%:}
-
-    mkdir -p /cow
-    cowdevice="tmpfs"
-    cow_fstype="tmpfs"
-
-    # Looking for "${root_persistence}" device or file
-    if [ -n "${PERSISTENT}" ]; then
-        cowprobe=$(find_cow_device "${root_persistence}")
-        if [ -b "${cowprobe}" ]; then
-            cowdevice=${cowprobe}
-            cow_fstype=$(get_fstype "${cowprobe}")
-        else
-            [ "$quiet" != "y" ] && log_warning_msg "Unable to find the persistent medium"
-        fi
-    fi
-
-    mount ${cowdevice} -t ${cow_fstype} -o rw /cow || panic "Can not mount $cowdevice on /cow"
-
-    mount -t ${UNIONTYPE} -o dirs=/cow=rw:$rofsstring ${UNIONTYPE} "$rootmnt" || panic "${UNIONTYPE} mount failed"
-
-    # Adding other custom mounts
-    if [ -n "${PERSISTENT}" ]; then
-        # directly mount /home
-        # FIXME: add a custom mounts configurable system
-        homecow=$(find_cow_device "${home_persistence}" )
-        if [ -b "${homecow}" ]; then
-            mount -t $(get_fstype "${homecow}") -o rw "${homecow}" "${rootmnt}/home"
-            export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
-        else
-            [ "$quiet" != "y" ] && log_warning_msg "Unable to find the persistent home medium"
-        fi
-        # Look for other snapshots to copy in
-        try_snap "${root_snapshot_label}" "${rootmnt}" "ROOT"
-        try_snap "${home_snapshot_label}" "${rootmnt}/home" "HOME"
-    fi
-
-    if [ -n "${SHOWMOUNTS}" ]; then
-        for d in ${rofslist}; do
-            mkdir -p "${rootmnt}/live/${d##*/}"
-            case d in
-                *.dir) # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
-                    ;;
-                *) mount --move "${d}" "${rootmnt}/live/${d##*/}"
-                    ;;
-            esac
-        done
-    fi
-
-    # shows cow fs on /cow for use by live-snapshot
-    mkdir -p "${rootmnt}/live/cow"
-    mount -o bind /cow "${rootmnt}/live/cow"
+		log_warning_msg "Unable to find the snapshot ${snap_type} medium"
+		return 1
+	fi
 }
 
-check_dev ()
+try_snap ()
 {
-    sysdev="${1}"
-    devname="${2}"
-    if [ -z "${devname}" ]; then
-        devname=$(sys2dev "${sysdev}")
-    fi
-
-    if [ -n "${LIVE_MEDIA_OFFSET}" ]; then
-        loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
-        devname="${loopdevname}"
-    fi
-
-    fstype=$(get_fstype "${devname}")
-    if is_supported_fs ${fstype}; then
-        mount -t ${fstype} -o ro "${devname}" $mountpoint || continue
-        if is_live_path $mountpoint; then
-            echo $mountpoint
-            return 0
-        else
-            umount $mountpoint
-        fi
-    fi
-
-    if [ -n "${LIVE_MEDIA_OFFSET}" ]; then
-        losetup -d "${loopdevname}"
-    fi
-    return 1
-}
+	# copy the contents of previously found snapshot to ${snap_mount}
+	# and remember the device and filename for resync on exit in live-boot.init
 
-find_livefs() {
-    timeout="${1}"
-    # first look at the one specified in the command line
-    if [ ! -z "${LIVE_MEDIA}" ]; then
-        if check_dev "null" "${LIVE_MEDIA}"; then
-            return 0
-        fi
-    fi
-    # don't start autodetection before timeout has expired
-    if [ -n "${LIVE_MEDIA_TIMEOUT}" ]; then
-        if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]; then
-            return 1
-        fi
-    fi
-    # or do the scan of block devices
-    for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram); do
-        devname=$(sys2dev "${sysblock}")
-        fstype=$(get_fstype "${devname}")
-        if /lib/udev/cdrom_id ${devname} > /dev/null; then
-            if check_dev "null" "${devname}" ; then
-                return 0
-            fi
-        elif is_nice_device "${sysblock}" ; then
-            for dev in $(subdevices "${sysblock}"); do
-                if check_dev "${dev}" ; then
-                    return 0
-                fi
-            done
-        elif [ "${fstype}" = "squashfs" -o \
-                "${fstype}" = "ext2" -o \
-                "${fstype}" = "ext3" ]; then
-            # This is an ugly hack situation, the block device has
-            # an image directly on it.  It's hopefully
-            # live-initramfs, so take it and run with it.
-            ln -s "${devname}" "${devname}.${fstype}"
-            echo "${devname}.${fstype}"
-            return 0
-        fi
-    done
-    return 1
-}
+	snapdata="${1}"
+	snap_mount="${2}"
+	snap_type="${3}"
+	snap_relpath="${4}"
 
-pulsate() {
-    if [ -x /sbin/usplash_write ]; then
-        /sbin/usplash_write "PULSATE"
-    fi
-}
+	if [ -z "${snap_relpath}" ]
+	then
+		# root snapshot, default usage
+		snap_relpath="/"
+	else
+		# relative snapshot (actually used just for "/home" snapshots)
+		snap_mount="${2}${snap_relpath}"
+	fi
 
-set_usplash_timeout() {
-    if [ -x /sbin/usplash_write ]; then
-        /sbin/usplash_write "TIMEOUT 120"
-    fi
-}
+	if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
+	then
+		log_success_msg "found snapshot: ${snapdata}"
+		snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
+		snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
+		snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
+
+		if ! try_mount "${snapdev}" "${snapback}" "ro"
+		then
+			break
+		fi
+
+		RES="0"
+
+		if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|ext4\|jffs2\)'
+		then
+			# squashfs, jffs2 or ext2/ext3/ext4 snapshot
+			dev=$(get_backing_device "${snapback}/${snapfile}")
+
+			do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
+			RES="$?"
+		else
+			# cpio.gz snapshot
+
+			# Unfortunately klibc's cpio is incompatible with the
+			# rest of the world; everything else requires -u -d,
+			# while klibc doesn't implement them. Try to detect
+			# whether it's in use.
+			cpiopath="$(which cpio)" || true
+			if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath"
+			then
+				cpioargs=
+			else
+				cpioargs='--unconditional --make-directories'
+			fi
+
+			if [ -s "${snapback}/${snapfile}" ]
+			then
+				BEFOREDIR="$(pwd)"
+				cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null
+				RES="$?"
+				cd "${BEFOREDIR}"
+			else
+				log_warning_msg "${snapback}/${snapfile} is empty, adding it for sync on reboot."
+				RES="0"
+			fi
+
+			if [ "${RES}" != "0" ]
+			then
+				log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
+			fi
+		fi
+
+		umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
+
+		if [ "${RES}" != "0" ]
+		then
+			log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
+		fi
+
+	elif [ -b "${snapdata}" ]
+	then
+		# Try to find if it could be a snapshot partition
+		dev="${snapdata}"
+		log_success_msg "found snapshot ${snap_type} device on ${dev}"
+		if echo "${dev}" | grep -qs loop
+		then
+			# strange things happens, user confused?
+			snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
+			snapfile=$(basename ${snaploop})
+			snapdev=$(awk -v pat="$( dirname ${snaploop})" '$2 == pat { print $1 }' /proc/mounts)
+		else
+			snapdev="${dev}"
+		fi
+
+		if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
+		then
+			log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)"
+			return 1
+		else
+			if [ -n "${snapfile}" ]
+			then
+				# it was a loop device, user confused
+				umount ${snapdev}
+			fi
+		fi
+	else
+		log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)"
+		return 1
+	fi
+
+	if [ -z ${PERSISTENCE_READONLY} ]
+	then
+		echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
+	fi
+	return 0
+}
+
+setup_unionfs ()
+{
+	image_directory="${1}"
+	rootmnt="${2}"
+	addimage_directory="${3}"
+
+	case ${UNIONTYPE} in
+		aufs|unionfs|overlayfs)
+			modprobe -q -b ${UNIONTYPE}
+
+			if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ]
+			then
+				echo "${UNIONTYPE} not available, falling back to unionfs-fuse."
+				echo "This might be really slow."
+
+				UNIONTYPE="unionfs-fuse"
+			fi
+			;;
+	esac
+
+	if [ "${UNIONTYPE}" = unionfs-fuse ]
+	then
+		modprobe fuse
+	fi
+
+	# run-init can't deal with images in a subdir, but we're going to
+	# move all of these away before it runs anyway.  No, we're not,
+	# put them in / since move-mounting them into / breaks mono and
+	# some other apps.
+
+	croot="/"
+
+	# Let's just mount the read-only file systems first
+	rofslist=""
+
+	if [ -z "${PLAIN_ROOT}" ]
+	then
+		# Read image names from ${MODULE}.module if it exists
+		if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
+		then
+			for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
+			do
+				image_string="${image_string} ${image_directory}/${IMAGE}"
+			done
+		elif [ -e "${image_directory}/${MODULE}.module" ]
+		then
+			for IMAGE in $(cat ${image_directory}/${MODULE}.module)
+			do
+				image_string="${image_string} ${image_directory}/${IMAGE}"
+			done
+		else
+			# ${MODULE}.module does not exist, create a list of images
+			for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
+			do
+				for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
+				do
+					if [ -e "${IMAGE}" ]
+					then
+						image_string="${image_string} ${IMAGE}"
+					fi
+				done
+			done
+
+			if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
+			then
+				for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
+				do
+					for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
+					do
+						if [ -e "${IMAGE}" ]
+						then
+							image_string="${image_string} ${IMAGE}"
+						fi
+					done
+				done
+			fi
+
+			# Now sort the list
+			image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
+		fi
+
+		[ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
+
+		mkdir -p "${croot}"
+
+		for image in ${image_string}
+		do
+			imagename=$(basename "${image}")
+
+			export image devname
+			maybe_break live-realpremount
+			log_begin_msg "Running /scripts/live-realpremount"
+			run_scripts /scripts/live-realpremount
+			log_end_msg
+
+			if [ -d "${image}" ]
+			then
+				# it is a plain directory: do nothing
+				rofslist="${image} ${rofslist}"
+			elif [ -f "${image}" ]
+			then
+				if losetup --help 2>&1 | grep -q -- "-r\b"
+				then
+					backdev=$(get_backing_device "${image}" "-r")
+				else
+					backdev=$(get_backing_device "${image}")
+				fi
+				fstype=$(get_fstype "${backdev}")
+
+				if [ "${fstype}" = "unknown" ]
+				then
+					panic "Unknown file system type on ${backdev} (${image})"
+				fi
+
+				if [ -z "${fstype}" ]
+				then
+					fstype="${imagename##*.}"
+					log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
+				fi
+
+				if [ "${UNIONTYPE}" != "unionmount" ]
+				then
+					mpoint="${croot}/${imagename}"
+					rofslist="${mpoint} ${rofslist}"
+				else
+					mpoint="${rootmnt}"
+					rofslist="${rootmnt} ${rofslist}"
+				fi
+				mkdir -p "${mpoint}"
+				log_begin_msg "Mounting \"${image}\" on \"${mpoint}\" via \"${backdev}\""
+				mount -t "${fstype}" -o ro,noatime "${backdev}" "${mpoint}" || panic "Can not mount ${backdev} (${image}) on ${mpoint}"
+				log_end_msg
+			fi
+		done
+	else
+		# we have a plain root system
+		mkdir -p "${croot}/filesystem"
+		log_begin_msg "Mounting \"${image_directory}\" on \"${croot}/filesystem\""
+		mount -t $(get_fstype "${image_directory}") -o ro,noatime "${image_directory}" "${croot}/filesystem" || \
+			panic "Can not mount ${image_directory} on ${croot}/filesystem" && \
+			rofslist="${croot}/filesystem ${rofslist}"
+		# probably broken:
+		mount -o bind ${croot}/filesystem $mountpoint
+		log_end_msg
+	fi
+
+	# tmpfs file systems
+	touch /etc/fstab
+	mkdir -p /live
+	mount -t tmpfs tmpfs /live
+	mkdir -p /live/overlay
+
+	# Looking for persistence devices or files
+	if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ]
+	then
+
+		if [ -z "${QUICKUSBMODULES}" ]
+		then
+			# Load USB modules
+			num_block=$(ls -l /sys/block | wc -l)
+			for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
+			do
+				modprobe -q -b ${module}
+			done
+
+			udevadm trigger
+			udevadm settle
+
+			# For some reason, udevsettle does not block in this scenario,
+			# so we sleep for a little while.
+			#
+			# See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
+			for timeout in 5 4 3 2 1
+			do
+				sleep 1
+
+				if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
+				then
+					break
+				fi
+			done
+		fi
+
+		case "${PERSISTENCE_MEDIA}" in
+			removable)
+				whitelistdev="$(removable_dev)"
+				;;
+			removable-usb)
+				whitelistdev="$(removable_usb_dev)"
+				;;
+			*)
+				whitelistdev=""
+				;;
+		esac
+
+		if is_in_comma_sep_list overlay ${PERSISTENCE_METHOD}
+		then
+			overlays="${old_root_overlay_label} ${old_home_overlay_label} ${custom_overlay_label}"
+		fi
+
+		if is_in_comma_sep_list snapshot ${PERSISTENCE_METHOD}
+		then
+			snapshots="${root_snapshot_label} ${home_snapshot_label}"
+		fi
+
+		local root_snapdata=""
+		local home_snapdata=""
+		local overlay_devices=""
+		for media in $(find_persistence_media "${overlays}" "${snapshots}" "${whitelistdev}")
+		do
+			media="$(echo ${media} | tr ":" " ")"
+			case ${media} in
+				${root_snapshot_label}=*|${old_root_snapshot_label}=*)
+					if [ -z "${root_snapdata}" ]
+					then
+						root_snapdata="${media#*=}"
+					fi
+					;;
+				${home_snapshot_label}=*)
+					# This second type should be removed when snapshot will get smarter,
+					# hence when "/etc/live-snapshot*list" will be supported also by
+					# ext2|ext3|ext4|jffs2 snapshot types.
+					if [ -z "${home_snapdata}" ]
+					then
+						home_snapdata="${media#*=}"
+					fi
+					;;
+				${old_root_overlay_label}=*)
+					device="${media#*=}"
+					fix_backwards_compatibility ${device} / union
+					overlay_devices="${overlay_devices} ${device}"
+					;;
+				${old_home_overlay_label}=*)
+					device="${media#*=}"
+					fix_backwards_compatibility ${device} /home bind
+					overlay_devices="${overlay_devices} ${device}"
+					;;
+				${custom_overlay_label}=*)
+					device="${media#*=}"
+					overlay_devices="${overlay_devices} ${device}"
+					;;
+			 esac
+		done
+	elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENCE}" ]
+	then
+		# check if there are any nfs options
+		if echo ${NFS_COW}|grep -q ','
+		then
+			nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
+			nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
+		else
+			nfs_cow_opts="-o nolock"
+			nfs_cow=${NFS_COW}
+		fi
+
+		if [ -n "${PERSISTENCE_READONLY}" ]
+		then
+			nfs_cow_opts="${nfs_cow_opts},nocto,ro"
+		fi
+
+		mac="$(get_mac)"
+		if [ -n "${mac}" ]
+		then
+			cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
+			cow_fstype="nfs"
+		else
+			panic "unable to determine mac address"
+		fi
+	fi
+
+	if [ -z "${cowdevice}" ]
+	then
+		cowdevice="tmpfs"
+		cow_fstype="tmpfs"
+		cow_mountopt="rw,noatime,mode=755"
+	fi
+
+	if [ "${UNIONTYPE}" != "unionmount" ]
+	then
+		if [ -n "${PERSISTENCE_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ]
+		then
+			mount -t tmpfs -o rw,noatime,mode=755 tmpfs "/live/overlay"
+			root_backing="/live/persistence/$(basename ${cowdevice})-root"
+			mkdir -p ${root_backing}
+		else
+			root_backing="/live/overlay"
+		fi
+
+		if [ "${cow_fstype}" = "nfs" ]
+		then
+			log_begin_msg \
+				"Trying nfsmount ${nfs_cow_opts} ${cowdevice} ${root_backing}"
+			nfsmount ${nfs_cow_opts} ${cowdevice} ${root_backing} || \
+				panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on ${root_backing}"
+		else
+			mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} ${root_backing} || \
+				panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on ${root_backing}"
+		fi
+	fi
+
+	rofscount=$(echo ${rofslist} |wc -w)
+
+	rofs=${rofslist%% }
+
+	if [ -n "${EXPOSED_ROOT}" ]
+	then
+		if [ ${rofscount} -ne 1 ]
+		then
+			panic "only one RO file system supported with exposedroot: ${rofslist}"
+		fi
+
+		mount --bind ${rofs} ${rootmnt} || \
+			panic "bind mount of ${rofs} failed"
+
+		if [ -z "${SKIP_UNION_MOUNTS}" ]
+		then
+			cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool /home /var/lib/live'
+		else
+			cow_dirs=''
+		fi
+	else
+		cow_dirs="/"
+	fi
+
+	if [ "${cow_fstype}" != "tmpfs" ] && [ "${cow_dirs}" != "/" ] && [ "${UNIONTYPE}" = "unionmount" ]
+	then
+		true # FIXME: Maybe it does, I don't really know.
+		#panic "unionmount does not support subunions (${cow_dirs})."
+	fi
+
+	for dir in ${cow_dirs}; do
+		unionmountpoint="${rootmnt}${dir}"
+		mkdir -p ${unionmountpoint}
+		if [ "${UNIONTYPE}" = "unionmount" ]
+		then
+			# FIXME: handle PERSISTENCE_READONLY
+			unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
+			mount_full $unionmountopts "${unionmountpoint}"
+		else
+			cow_dir="/live/overlay${dir}"
+			rofs_dir="${rofs}${dir}"
+			mkdir -p ${cow_dir}
+			if [ -n "${PERSISTENCE_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ]
+			then
+				do_union ${unionmountpoint} ${cow_dir} ${root_backing} ${rofs_dir}
+			else
+				do_union ${unionmountpoint} ${cow_dir} ${rofs_dir}
+			fi
+		fi || panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
+	done
+
+	# Correct the permissions of /:
+	chmod 0755 "${rootmnt}"
+
+	live_rofs_list=""
+	# SHOWMOUNTS is necessary for custom mounts with the union option
+	# Since we may want to do custom mounts in user-space it's best to always enable SHOWMOUNTS
+	if true #[ -n "${SHOWMOUNTS}" ] || ( [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ] 1)
+	then
+		# XXX: is the for loop really necessary? rofslist can only contain one item (see above XXX about EXPOSEDROOT) and this is also assumed elsewhere above (see use of $rofs above).
+		for d in ${rofslist}
+		do
+			live_rofs="/live/rofs/${d##*/}"
+			live_rofs_list="${live_rofs_list} ${live_rofs}"
+			mkdir -p "${live_rofs}"
+			case d in
+				*.dir)
+					# do nothing # mount -o bind "${d}" "${live_rofs}"
+					;;
+				*)
+					case "${UNIONTYPE}" in
+						unionfs-fuse)
+							mount -o bind "${d}" "${live_rofs}"
+							;;
+						*)
+							mount -o move "${d}" "${live_rofs}"
+							;;
+					esac
+					;;
+			esac
+		done
+	fi
+
+	# Adding custom persistence
+	if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ]
+	then
+		local custom_mounts="/tmp/custom_mounts.list"
+		rm -rf ${custom_mounts} 2> /dev/null
+
+		# Gather information about custom mounts from devies detected as overlays
+		get_custom_mounts ${custom_mounts} ${overlay_devices}
+
+		[ -n "${DEBUG}" ] && cp ${custom_mounts} "/live/persistence"
+
+		# Now we do the actual mounting (and symlinking)
+		local used_overlays=""
+		used_overlays=$(activate_custom_mounts ${custom_mounts})
+		rm ${custom_mounts}
+
+		# Close unused overlays (e.g. due to missing $persistence_list)
+		for overlay in ${overlay_devices}
+		do
+			if echo ${used_overlays} | grep -qve "^\(.* \)\?${device}\( .*\)\?$"
+			then
+				close_persistence_media ${overlay}
+			fi
+		done
+
+		# Look for other snapshots to copy in
+		[ -n "${root_snapdata}" ] && try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
+		# This second type should be removed when snapshot grow smarter
+		[ -n "${home_snapdata}" ] && try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
+	fi
+
+	mkdir -p "${rootmnt}/live"
+	mount -o move /live "${rootmnt}/live" >/dev/null 2>&1 || mount -o bind /live "${rootmnt}/live" || log_warning_msg "Unable to move or bind /live to ${rootmnt}/live"
+
+	# shows cow fs on /overlay for use by live-snapshot
+	mkdir -p "${rootmnt}/live/overlay"
+	mount -o move /live/overlay "${rootmnt}/live/overlay" >/dev/null 2>&1 || mount -o bind /overlay "${rootmnt}/live/overlay" || log_warning_msg "Unable to move or bind /overlay to ${rootmnt}/live/overlay"
+
+}
+
+check_dev ()
+{
+	sysdev="${1}"
+	devname="${2}"
+	skip_uuid_check="${3}"
+
+	# support for fromiso=.../isofrom=....
+	if [ -n "$FROMISO" ]
+	then
+		ISO_DEVICE=$(dirname $FROMISO)
+		if ! [ -b $ISO_DEVICE ]
+		then
+			# to support unusual device names like /dev/cciss/c0d0p1
+			# as well we have to identify the block device name, let's
+			# do that for up to 15 levels
+			i=15
+			while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
+			do
+				ISO_DEVICE=$(dirname ${ISO_DEVICE})
+				[ -b "$ISO_DEVICE" ] && break
+				i=$(($i -1))
+		        done
+		fi
+
+		if [ "$ISO_DEVICE" = "/" ]
+		then
+			echo "Warning: device for bootoption fromiso= ($FROMISO) not found.">>/boot.log
+		else
+			fs_type=$(get_fstype "${ISO_DEVICE}")
+			if is_supported_fs ${fs_type}
+			then
+				mkdir /live/fromiso
+				mount -t $fs_type "$ISO_DEVICE" /live/fromiso
+				ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
+				loopdevname=$(setup_loop "/live/fromiso/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
+				devname="${loopdevname}"
+			else
+				echo "Warning: unable to mount $ISO_DEVICE." >>/boot.log
+			fi
+		fi
+	fi
+
+	if [ -z "${devname}" ]
+	then
+		devname=$(sys2dev "${sysdev}")
+	fi
+
+	if [ -d "${devname}" ]
+	then
+		mount -o bind "${devname}" $mountpoint || continue
+
+		if is_live_path $mountpoint
+		then
+			echo $mountpoint
+			return 0
+		else
+			umount $mountpoint
+		fi
+	fi
+
+	IFS=","
+	for device in ${devname}
+	do
+		case "$device" in
+			*mapper*)
+				# Adding lvm support
+				if [ -x /scripts/local-top/lvm2 ]
+				then
+					ROOT="$device" resume="" /scripts/local-top/lvm2
+				fi
+				;;
+
+			/dev/md*)
+				# Adding raid support
+				if [ -x /scripts/local-top/mdadm ]
+				then
+					cp /conf/conf.d/md /conf/conf.d/md.orig
+					echo "MD_DEVS=$device " >> /conf/conf.d/md
+					/scripts/local-top/mdadm
+					mv /conf/conf.d/md.orig /conf/conf.d/md
+				fi
+				;;
+		esac
+	done
+	unset IFS
+
+	[ -n "$device" ] && devname="$device"
+
+	[ -e "$devname" ] || continue
+
+	if [ -n "${LIVE_MEDIA_OFFSET}" ]
+	then
+		loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
+		devname="${loopdevname}"
+	fi
+
+	fstype=$(get_fstype "${devname}")
+
+	if is_supported_fs ${fstype}
+	then
+		devuid=$(blkid -o value -s UUID "$devname")
+		[ -n "$devuid" ] && grep -qs "\<$devuid\>" $tried && continue
+		mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
+		[ -n "$devuid" ] && echo "$devuid" >> $tried
+
+		if [ -n "${FINDISO}" ]
+		then
+			if [ -f ${mountpoint}/${FINDISO} ]
+			then
+				umount ${mountpoint}
+				mkdir -p /live/findiso
+				mount -t ${fstype} -o ro,noatime "${devname}" /live/findiso
+				loopdevname=$(setup_loop "/live/findiso/${FINDISO}" "loop" "/sys/block/loop*" 0 "")
+				devname="${loopdevname}"
+				mount -t iso9660 -o ro,noatime "${devname}" ${mountpoint}
+			else
+				umount ${mountpoint}
+			fi
+		fi
+
+		if is_live_path ${mountpoint} && \
+			([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
+		then
+			echo ${mountpoint}
+			return 0
+		else
+			umount ${mountpoint} 2>/dev/null
+		fi
+	fi
+
+	if [ -n "${LIVE_MEDIA_OFFSET}" ]
+	then
+		losetup -d "${loopdevname}"
+	fi
+
+	return 1
+}
+
+find_livefs ()
+{
+	timeout="${1}"
+
+	# don't start autodetection before timeout has expired
+	if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
+	then
+		if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
+		then
+			return 1
+		fi
+	fi
+
+	# first look at the one specified in the command line
+	case "${LIVE_MEDIA}" in
+		removable-usb)
+			for sysblock in $(removable_usb_dev "sys")
+			do
+				for dev in $(subdevices "${sysblock}")
+				do
+					if check_dev "${dev}"
+					then
+						return 0
+					fi
+				done
+			done
+			return 1
+			;;
+
+		removable)
+			for sysblock in $(removable_dev "sys")
+			do
+				for dev in $(subdevices "${sysblock}")
+				do
+					if check_dev "${dev}"
+					then
+						return 0
+					fi
+				done
+			done
+			return 1
+			;;
+
+		*)
+			if [ ! -z "${LIVE_MEDIA}" ]
+			then
+				if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
+				then
+					return 0
+				fi
+			fi
+			;;
+	esac
+
+	# or do the scan of block devices
+	# prefer removable devices over non-removable devices, so scan them first
+	devices_to_scan="$(removable_dev 'sys') $(non_removable_dev 'sys')"
+
+	for sysblock in $devices_to_scan
+	do
+		devname=$(sys2dev "${sysblock}")
+		[ -e "$devname" ] || continue
+		fstype=$(get_fstype "${devname}")
+
+		if /lib/udev/cdrom_id ${devname} > /dev/null
+		then
+			if check_dev "null" "${devname}"
+			then
+				return 0
+			fi
+		elif is_nice_device "${sysblock}"
+		then
+			for dev in $(subdevices "${sysblock}")
+			do
+				if check_dev "${dev}"
+				then
+					return 0
+				fi
+			done
+		elif [ "${fstype}" = "squashfs" -o \
+			"${fstype}" = "btrfs" -o \
+			"${fstype}" = "ext2" -o \
+			"${fstype}" = "ext3" -o \
+			"${fstype}" = "ext4" -o \
+			"${fstype}" = "jffs2" ]
+		then
+			# This is an ugly hack situation, the block device has
+			# an image directly on it.  It's hopefully
+			# live-boot, so take it and run with it.
+			ln -s "${devname}" "${devname}.${fstype}"
+			echo "${devname}.${fstype}"
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+integrity_check ()
+{
+	media_mountpoint="${1}"
+
+	log_begin_msg "Checking media integrity"
+
+	cd ${media_mountpoint}
+	/bin/md5sum -c md5sum.txt < /dev/tty8 > /dev/tty8
+	RC="${?}"
+
+	log_end_msg
+
+	if [ "${RC}" -eq 0 ]
+	then
+		log_success_msg "Everything ok, will reboot in 10 seconds."
+		sleep 10
+		cd /
+		umount ${media_mountpoint}
+		sync
+		echo u > /proc/sysrq-trigger
+		echo b > /proc/sysrq-trigger
+	else
+		panic "Not ok, a media defect is likely, switch to VT8 for details."
+	fi
+}
+
+mountroot ()
+{
+	if [ -x /scripts/local-top/cryptroot ]; then
+	    /scripts/local-top/cryptroot
+	fi
+
+	exec 6>&1
+	exec 7>&2
+	exec > boot.log
+	exec 2>&1
+	tail -f boot.log >&7 &
+	tailpid="${!}"
+
+	# Ensure 'panic' function is overridden
+	. /scripts/live-functions
+
+	Arguments
+
+	maybe_break live-premount
+	log_begin_msg "Running /scripts/live-premount"
+	run_scripts /scripts/live-premount
+	log_end_msg
+
+	# Needed here too because some things (*cough* udev *cough*)
+	# changes the timeout
+
+	if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
+	then
+		if do_netmount
+		then
+			livefs_root="${mountpoint}"
+		else
+			panic "Unable to find a live file system on the network"
+		fi
+	else
+		if [ -n "${ISCSI_PORTAL}" ]
+		then
+			do_iscsi && livefs_root="${mountpoint}"
+		elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
+		then
+			# Do a local boot from hd
+			livefs_root=${ROOT}
+		else
+			if [ -x /usr/bin/memdiskfind ]
+			then
+				MEMDISK=$(/usr/bin/memdiskfind)
+
+				if [ $? -eq 0 ]
+				then
+					# We found a memdisk, set up phram
+					modprobe phram phram=memdisk,${MEMDISK}
+
+					# Load mtdblock, the memdisk will be /dev/mtdblock0
+					modprobe mtdblock
+				fi
+			fi
+
+			# Scan local devices for the image
+			i=0
+			while [ "$i" -lt 60 ]
+			do
+				livefs_root=$(find_livefs ${i})
+
+				if [ -n "${livefs_root}" ]
+				then
+					break
+				fi
+
+				sleep 1
+				i="$(($i + 1))"
+			done
+		fi
+	fi
+
+	if [ -z "${livefs_root}" ]
+	then
+		panic "Unable to find a medium containing a live file system"
+	fi
+
+	if [ "${INTEGRITY_CHECK}" ]
+	then
+		integrity_check "${livefs_root}"
+	fi
+
+	if [ "${TORAM}" ]
+	then
+		live_dest="ram"
+	elif [ "${TODISK}" ]
+	then
+		live_dest="${TODISK}"
+	fi
+
+	if [ "${live_dest}" ]
+	then
+		log_begin_msg "Copying live media to ${live_dest}"
+		copy_live_to "${livefs_root}" "${live_dest}"
+		log_end_msg
+	fi
+
+	# if we do not unmount the ISO we can't run "fsck /dev/ice" later on
+	# because the mountpoint is left behind in /proc/mounts, so let's get
+	# rid of it when running from RAM
+	if [ -n "$FROMISO" ] && [ "${TORAM}" ]
+	then
+		losetup -d /dev/loop0
+
+		if is_mountpoint /live/fromiso
+		then
+			umount /live/fromiso
+			rmdir --ignore-fail-on-non-empty /live/fromiso \
+				>/dev/null 2>&1 || true
+		fi
+	fi
+
+	if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
+	then
+		setup_unionfs "${livefs_root}" "${rootmnt}"
+	else
+		mac="$(get_mac)"
+		mac="$(echo ${mac} | sed 's/-//g')"
+		mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
+	fi
+
+
+	if [ -n "${ROOT_PID}" ] ; then
+		echo "${ROOT_PID}" > "${rootmnt}"/live/root.pid
+	fi
+
+	log_end_msg
+
+	# unionfs-fuse needs /dev to be bind-mounted for the duration of
+	# live-bottom; udev's init script will take care of things after that
+	if [ "${UNIONTYPE}" = unionfs-fuse ]
+	then
+		mount -n -o bind /dev "${rootmnt}/dev"
+	fi
+
+	# Move to the new root filesystem so that programs there can get at it.
+	if [ ! -d /root/live/image ]
+	then
+		mkdir -p /root/live/image
+		mount --move /live/image /root/live/image
+	fi
+
+	# aufs2 in kernel versions around 2.6.33 has a regression:
+	# directories can't be accessed when read for the first the time,
+	# causing a failure for example when accessing /var/lib/fai
+	# when booting FAI, this simple workaround solves it
+	ls /root/* >/dev/null 2>&1
+
+	# Move findiso directory to the new root filesystem so that programs there can get at it.
+	if [ -d /live/findiso ] && [ ! -d /root/live/findiso ]
+	then
+		mkdir -p /root/live/findiso
+		mount -n --move /live/findiso /root/live/findiso
+	fi
+
+	# if we do not unmount the ISO we can't run "fsck /dev/ice" later on
+	# because the mountpoint is left behind in /proc/mounts, so let's get
+	# rid of it when running from RAM
+	if [ -n "$FINDISO" ] && [ "${TORAM}" ]
+	then
+		losetup -d /dev/loop0
+
+		if is_mountpoint /root/live/findiso
+		then
+			umount /root/live/findiso
+			rmdir --ignore-fail-on-non-empty /root/live/findiso \
+				>/dev/null 2>&1 || true
+		fi
+	fi
+
+	# copy snapshot configuration if exists
+	if [ -f snapshot.conf ]
+	then
+		log_begin_msg "Copying snapshot.conf to ${rootmnt}/etc/live/boot.d"
+		if [ ! -d "${rootmnt}/etc/live/boot.d" ]
+		then
+			mkdir -p "${rootmnt}/etc/live/boot.d"
+		fi
+		cp snapshot.conf "${rootmnt}/etc/live/boot.d/"
+		log_end_msg
+	fi
+
+	if [ -f /etc/resolv.conf ] && [ ! -s ${rootmnt}/etc/resolv.conf ]
+	then
+		log_begin_msg "Copying /etc/resolv.conf to ${rootmnt}/etc/resolv.conf"
+		cp -v /etc/resolv.conf ${rootmnt}/etc/resolv.conf
+		log_end_msg
+	fi
+
+	maybe_break live-bottom
+	log_begin_msg "Running /scripts/live-bottom\n"
+
+	run_scripts /scripts/live-bottom
+	log_end_msg
+
+	if [ "${UNIONFS}" = unionfs-fuse ]
+	then
+		umount "${rootmnt}/dev"
+	fi
 
-mountroot() {
-    exec 6>&1
-    exec 7>&2
-    exec > live.log
-    exec 2>&1
-
-    parse_cmdline
-
-    set_usplash_timeout
-    [ "$quiet" != "y" ] && log_begin_msg "Running /scripts/live-premount"
-    pulsate
-    run_scripts /scripts/live-premount
-    [ "$quiet" != "y" ] && log_end_msg
-
-    # Needed here too because some things (*cough* udev *cough*)
-    # changes the timeout
-
-    set_usplash_timeout
-
-    if [ ! -z "${NETBOOT}" ]; then
-        if do_netmount ; then
-            livefs_root="${mountpoint}"
-        else
-            panic "Unable to find a live file system on the network"
-        fi
-    else
-        # Scan local devices for the image
-        for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19; do
-            livefs_root=$(find_livefs $i)
-            if [ -n "${livefs_root}" ]; then
-                break
-            fi
-            sleep 1
-        done
-    fi
-
-    if [ -z "${livefs_root}" ]; then
-        panic "Unable to find a medium containing a live file system"
-    fi
-
-    if [ "${TORAM}" ]; then
-        live_dest="ram"
-    elif [ "${TODISK}" ]; then
-        live_dest="${TODISK}"
-    fi
-    if [ "${live_dest}" ]; then
-        log_begin_msg "Copying live media to ${live_dest}"
-        copy_live_to "${livefs_root}" "${live_dest}"
-        log_end_msg
-    fi
-
-    mount_images_in_directory "${livefs_root}" "${rootmnt}"
-
-    log_end_msg
-
-    maybe_break live-bottom
-    [ "$quiet" != "y" ] && log_begin_msg "Running /scripts/live-bottom"
-
-    pulsate
-    run_scripts /scripts/live-bottom
-    [ "$quiet" != "y" ] && log_end_msg
-
-    exec 1>&6 6>&-
-    exec 2>&7 7>&-
-    cp live.log "${rootmnt}/var/log/"
+	exec 1>&6 6>&-
+	exec 2>&7 7>&-
+	kill ${tailpid}
+	[ -w "${rootmnt}/var/log/" ] && mkdir -p /var/log/live && cp boot.log "${rootmnt}/var/log/live" 2>/dev/null
 }