Change output to live-boot.log
[live-boot-grml.git] / scripts / live
index fa76eb1..5681362 100755 (executable)
@@ -8,6 +8,7 @@ echo "/root/lib" >> /etc/ld.so.conf
 echo "/root/usr/lib" >> /etc/ld.so.conf
 
 mountpoint="/live/image"
+alt_mountpoint="/media"
 LIVE_MEDIA_PATH="live"
 
 root_persistence="live-rw"
@@ -20,6 +21,7 @@ USERFULLNAME="Live user"
 HOSTNAME="host"
 
 mkdir -p "${mountpoint}"
+tried="/tmp/tried"
 
 # Create /etc/mtab for debug purpose and future syncs
 if [ ! -d /etc ]
@@ -32,9 +34,6 @@ then
        touch /etc/mtab
 fi
 
-[ -f /etc/live.conf ] && . /etc/live.conf
-export USERNAME USERFULLNAME HOSTNAME
-
 . /scripts/live-helpers
 
 if [ ! -f /live.vars ]
@@ -45,10 +44,20 @@ fi
 Arguments ()
 {
        PRESEEDS=""
+       LOCATIONS=""
 
        for ARGUMENT in $(cat /proc/cmdline)
        do
                case "${ARGUMENT}" in
+                       skipconfig)
+                               NOACCESSIBILITY="Yes"
+                               NOFASTBOOT="Yes"
+                               NOFSTAB="Yes"
+                               NONETWORKING="Yes"
+
+                               export NOACCESSIBILITY NOFASTBOOT NOFSTAB NONETWORKING
+                               ;;
+
                        access=*)
                                ACCESS="${ARGUMENT#access=}"
                                export ACCESS
@@ -59,6 +68,10 @@ Arguments ()
                                export DEFCONSOLE
                                ;;
 
+                       BOOTIF=*)
+                               BOOTIF="${x#BOOTIF=}"
+                               ;;
+
                        debug)
                                DEBUG="Yes"
                                export DEBUG
@@ -66,21 +79,38 @@ Arguments ()
                                set -x
                                ;;
 
+                       dhcp)
+                               # Force dhcp even while netbooting
+                               # Use for debugging in case somebody works on fixing dhclient
+                               DHCP="Force";
+                               export DHCP
+                               ;;
+
+                       nodhcp)
+                               unset DHCP
+                               ;;
+
+                       ethdevice=*)
+                               DEVICE="${ARGUMENT#ethdevice=}"
+                               ETHDEVICE="${DEVICE}"
+                               export DEVICE ETHDEVICE
+                               ;;
+
+                       ethdevice-timeout=*)
+                               ETHDEV_TIMEOUT="${ARGUMENT#ethdevice-timeout=}"
+                               export ETHDEV_TIMEOUT
+                               ;;
+
                        fetch=*)
-                                FETCH="${ARGUMENT#fetch=}"
-                                export FETCH
-                                ;;
+                               FETCH="${ARGUMENT#fetch=}"
+                               export FETCH
+                               ;;
 
                        forcepersistentfsck)
                                FORCEPERSISTENTFSCK="Yes"
                                export FORCEPERSISTENTFSCK
                                ;;
 
-                       hook=*)
-                               HOOK="${ARGUMENT#hook=}"
-                               export HOOK
-                               ;;
-
                        ftpfs=*)
                                FTPFS="${ARGUMENT#ftpfs=}"
                                export FTPFS
@@ -91,10 +121,17 @@ Arguments ()
                                export HTTPFS
                                ;;
 
-                       hostname=*)
-                               HOSTNAME="${ARGUMENT#hostname=}"
-                               LIVECONF="changed"
-                               export HOSTNAME LIVECONF
+                       iscsi=*)
+                               ISCSI="${ARGUMENT#iscsi=}"
+                               #ip:port - separated by ;
+                               ISCSI_PORTAL="${ISCSI%;*}"
+                               if echo "${ISCSI_PORTAL}" | grep -q , ; then
+                                       ISCSI_SERVER="${ISCSI_PORTAL%,*}"
+                                       ISCSI_PORT="${ISCSI_PORTAL#*,}"
+                               fi
+                               #target name
+                               ISCSI_TARGET="${ISCSI#*;}"
+                               export ISCSI ISCSI_PORTAL ISCSI_TARGET ISCSI_SERVER ISCSI_PORT
                                ;;
 
                        isofrom=*|fromiso=*)
@@ -102,18 +139,6 @@ Arguments ()
                                export FROMISO
                                ;;
 
-                       username=*)
-                               USERNAME="${ARGUMENT#username=}"
-                               LIVECONF="changed"
-                               export USERNAME LIVECONF
-                               ;;
-
-                       userfullname=*)
-                               USERFULLNAME="${ARGUMENT#userfullname=}"
-                               LIVECONF="changed"
-                               export USERFULLNAME LIVECONF
-                               ;;
-
                        ignore_uuid)
                                IGNORE_UUID="Yes"
                                export IGNORE_UUID
@@ -135,31 +160,6 @@ Arguments ()
                                export STATICIP
                                ;;
 
-                       keyb=*|kbd-chooser/method=*)
-                               KBD="${ARGUMENT#*=}"
-                               export KBD
-                               ;;
-
-                       klayout=*|console-setup/layoutcode=*)
-                               KLAYOUT="${ARGUMENT#*=}"
-                               export KLAYOUT
-                               ;;
-
-                       kvariant=*|console-setup/variantcode=*)
-                               KVARIANT="${ARGUMENT#*=}"
-                               export KVARIANT
-                               ;;
-
-                       kmodel=*|console-setup/modelcode=*)
-                               KMODEL="${ARGUMENT#*=}"
-                               export KMODEL
-                               ;;
-
-                       koptions=*)
-                               KOPTIONS="${ARGUMENT#koptions=}"
-                               export KOPTIONS
-                               ;;
-
                        live-getty)
                                LIVE_GETTY="1"
                                export LIVE_GETTY
@@ -190,17 +190,6 @@ Arguments ()
                                export LIVE_MEDIA_TIMEOUT
                                ;;
 
-                       language=*|debian-installer/language=*)
-                               language=${x#debian-installer/language=}
-                               locale="$(lang2locale "$language")"
-                               set_locale="true"
-                               ;;
-
-                       locale=*|debian-installer/locale=*)
-                               LOCALE="${ARGUMENT#*=}"
-                               export LOCALE
-                               ;;
-
                        module=*)
                                MODULE="${ARGUMENT#module=}"
                                export MODULE
@@ -226,31 +215,6 @@ Arguments ()
                                export NOACCESSIBILITY
                                ;;
 
-                       noapparmor)
-                               NOAPPARMOR="Yes"
-                               export NOAPPARMOR
-                               ;;
-
-                       noaptcdrom)
-                               NOAPTCDROM="Yes"
-                               export NOAPTCDROM
-                               ;;
-
-                       noautologin)
-                               NOAUTOLOGIN="Yes"
-                               export NOAUTOLOGIN
-                               ;;
-
-                       noxautologin)
-                               NOXAUTOLOGIN="Yes"
-                               export NOXAUTOLOGIN
-                               ;;
-
-                       noconsolekeyboard)
-                               NOCONSOLEKEYBOARD="Yes"
-                               export NOCONSOLEKEYBOARD
-                               ;;
-
                        nofastboot)
                                NOFASTBOOT="Yes"
                                export NOFASTBOOT
@@ -261,54 +225,13 @@ Arguments ()
                                export NOFSTAB
                                ;;
 
-                       nognomepanel)
-                               NOGNOMEPANEL="Yes"
-                               export NOGNOMEPANEL
-                               ;;
-
-                       nohosts)
-                               NOHOSTS="Yes"
-                               export NOHOSTS
-                               ;;
-
-                       nokpersonalizer)
-                               NOKPERSONALIZER="Yes"
-                               export NOKPERSONALIZER
-                               ;;
-
-                       nolanguageselector)
-                               NOLANGUAGESELECTOR="Yes"
-                               export NOLANGUAGESELECTOR
-                               ;;
-
-                       nolocales)
-                               NOLOCALES="Yes"
-                               export NOLOCALES
-                               ;;
-
                        nonetworking)
                                NONETWORKING="Yes"
                                export NONETWORKING
                                ;;
 
-                       nopowermanagement)
-                               NOPOWERMANAGEMENT="Yes"
-                               export NOPOWERMANAGEMENT
-                               ;;
-
-                       noprogramcrashes)
-                               NOPROGRAMCRASHES="Yes"
-                               export NOPROGRAMCRASHES
-                               ;;
-
-                       nojockey)
-                               NOJOCKEY="Yes"
-                               export NOJOCKEY
-                               ;;
-
-                       nosudo)
-                               NOSUDO="Yes"
-                               export NOSUDO
+                       ramdisk-size=*)
+                               ramdisk_size="${ARGUMENT#ramdisk-size=}"
                                ;;
 
                        swapon)
@@ -316,26 +239,6 @@ Arguments ()
                                export SWAPON
                                ;;
 
-                       noupdatenotifier)
-                               NOUPDATENOTIFIER="Yes"
-                               export NOUPDATENOTIFIER
-                               ;;
-
-                       nouser)
-                               NOUSER="Yes"
-                               export NOUSER
-                               ;;
-
-                       noxautoconfig)
-                               NOXAUTOCONFIG="Yes"
-                               export NOXAUTOCONFIG
-                               ;;
-
-                       noxscreensaver)
-                               NOXSCREENSAVER="Yes"
-                               export NOXSCREENSAVER
-                               ;;
-
                        persistent)
                                PERSISTENT="Yes"
                                export PERSISTENT
@@ -367,33 +270,29 @@ Arguments ()
                                export NOPERSISTENT
                                ;;
 
-                       preseed/file=*|file=*)
-                               LOCATION="${ARGUMENT#*=}"
-                               export LOCATION
+                       noprompt)
+                               NOPROMPT="Yes"
+                               export NOPROMPT
                                ;;
 
-                       nopreseed)
-                               NOPRESEED="Yes"
-                               export NOPRESEED
+                       noprompt=*)
+                               NOPROMPT="${ARGUMENT#noprompt=}"
+                               export NOPROMPT
                                ;;
 
-                       url=*)
-                               location="${ARGUMENT#url=}"
-
-                               mount -o bind /sys /root/sys
-                               mount -o bind /proc /root/proc
-                               mount -o bind /dev /root/dev
-
-                               mkdir -p /root/var/run/network
-                               chroot /root dhclient eth0
-                               chroot /root wget -P /tmp "${location}"
-                               chroot /root ifconfig eth0 down
+                       quickusbmodules)
+                               QUICKUSBMODULES="Yes"
+                               export QUICKUSBMODULES
+                               ;;
 
-                               umount /root/sys
-                               umount /root/proc
-                               umount /root/dev
+                       preseed/file=*|file=*)
+                               LOCATIONS="${ARGUMENT#*=} ${LOCATIONS}"
+                               export LOCATIONS
+                               ;;
 
-                               LOCATION="/tmp/$(basename "${location}")"
+                       nopreseed)
+                               NOPRESEED="Yes"
+                               export NOPRESEED
                                ;;
 
                        */*=*)
@@ -413,21 +312,6 @@ Arguments ()
                                export SILENT
                                ;;
 
-                       textonly)
-                               TEXTONLY="Yes"
-                               export TEXTONLY
-                               ;;
-
-                       timezone=*)
-                               TIMEZONE="${ARGUMENT#timezone=}"
-                               export TIMEZONE
-                               ;;
-
-                       notimezone)
-                               NOTIMEZONE="Yes"
-                               export NOTIMEZONE
-                               ;;
-
                        todisk=*)
                                TODISK="${ARGUMENT#todisk=}"
                                export TODISK
@@ -455,9 +339,9 @@ Arguments ()
                                ;;
 
                        skipunion)
-                                SKIP_UNION_MOUNTS="Yes"
-                                export SKIP_UNION_MOUNTS
-                                ;;
+                               SKIP_UNION_MOUNTS="Yes"
+                               export SKIP_UNION_MOUNTS
+                               ;;
 
                        root=*)
                                ROOT="${ARGUMENT#root=}"
@@ -468,26 +352,6 @@ Arguments ()
                                UNIONTYPE="${ARGUMENT#union=}"
                                export UNIONTYPE
                                ;;
-
-                       utc=*)
-                               UTC="${ARGUMENT#utc=}"
-                               export UTC
-                               ;;
-
-                       xdebconf)
-                               XDEBCONF="Yes"
-                               export XDEBCONF
-                               ;;
-
-                       xdriver=*)
-                               XDRIVER="${ARGUMENT#xdriver=}"
-                               export XDRIVER
-                               ;;
-
-                       xvideomode=*)
-                               XVIDEOMODE="${ARGUMENT#xvideomode=}"
-                               export XVIDEOMODE
-                               ;;
                esac
        done
 
@@ -616,12 +480,18 @@ is_nice_device ()
 {
        sysfs_path="${1#/sys}"
 
-       if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-)"
+       if /lib/udev/path_id "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-|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
 
        return 1
@@ -651,7 +521,7 @@ copy_live_to ()
        if [ "${copytodev}" = "ram" ]
        then
                # copying to ram:
-               freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( awk '/\<Cached/{print $2}' /proc/meminfo ) )
+               freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
                mount_options="-o size=${size}k"
                free_string="memory"
                fstype="tmpfs"
@@ -676,6 +546,13 @@ copy_live_to ()
                return 1
        fi
 
+       # Custom ramdisk size
+       if [ -z "${mount_options}" ] && [ -n "${ramdisk_size}" ]
+       then
+               # FIXME: should check for wrong values
+               mount_options="-o size=${ramdisk_size}"
+       fi
+
        # begin copying (or uncompressing)
        mkdir "${copyto}"
        log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
@@ -705,7 +582,11 @@ copy_live_to ()
                                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}   # "cp -a" from busybox also copies hidden files
+                               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
 
@@ -717,49 +598,177 @@ copy_live_to ()
        return 0
 }
 
-do_netmount ()
+do_netsetup ()
 {
-       rc=1
-
        modprobe -q af_packet # For DHCP
 
-       if [ -x /sbin/udevadm ]
+       udevadm trigger
+       udevadm settle
+
+       [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
+       echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
+
+       if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \
+          [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
        then
-               # lenny
-               udevadm trigger
-               udevadm settle
-       else
-               # etch
-               udevtrigger
-               udevsettle
-       fi
 
-       ipconfig ${DEVICE} | tee /netboot.config
 
-       # source relevant ipconfig output
-       OLDHOSTNAME=${HOSTNAME}
-       . /tmp/net-${DEVICE}.conf
-       [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
-       export HOSTNAME
+       # support for Syslinux IPAPPEND parameter
+       # it sets the BOOTIF variable on the kernel parameter
 
-       # Check if we have a network device at all
-       if ! 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
+       if [ -n "${BOOTIF}" ]
        then
-               panic "No supported network device found, maybe a non-mainline driver is required."
+               # pxelinux sets BOOTIF to a value based on the mac address of the
+               # network card used to PXE boot, so use this value for DEVICE rather
+               # than a hard-coded device name from initramfs.conf. this facilitates
+               # network booting when machines may have multiple network cards.
+               # pxelinux sets BOOTIF to 01-$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:$x"
+                       fi
+               done
+               unset IFS
+
+               # look for devices with matching mac address, and set DEVICE to
+               # appropriate value if match is found.
+
+               for device in /sys/class/net/*
+               do
+                       if [ -f "$device/address" ]
+                       then
+                               current_mac=$(cat "$device/address")
+
+                               if [ "$bootif_mac" = "$current_mac" ]
+                               then
+                                       DEVICE=${device##*/}
+                                       break
+                               fi
+                       fi
+               done
+       fi
+
+       # if ethdevice was not specified on the kernel command line
+       # make sure we try to get a working network configuration
+       # for *every* present network device (except for loopback of course)
+       if [ -z "$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
+
+       # split args of ethdevice=eth0,eth1 into "eth0 eth1"
+       for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
+               devlist="$devlist $device"
+       done
+
+       # this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
+       # an endless loop; iff execution fails give it two further tries, that's
+       # why we use '$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
+
+               # if configuration of device worked we should have an assigned
+               # IP address, iff so let's use the according 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
+
+       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
 
+       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
+
+               if [ -n "${interface}" ]
+               then
+                       HWADDR="$(cat /sys/class/net/${interface}/address)"
+               fi
+
+               if [ ! -e "/etc/resolv.conf" ]
+               then
+                       echo "Creating /etc/resolv.conf"
+
+                       if [ -n "${DNSDOMAIN}" ]
+                       then
+                               echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
+                               echo "search ${DNSDOMAIN}" >> /etc/resolv.conf
+                       fi
+
+                       for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
+                       do
+                               if [ -n "$i" ] && [ "$i" != 0.0.0.0 ]
+                               then
+                                       echo "nameserver $i" >> /etc/resolv.conf
+                               fi
+                       done
+               fi
+
+               # Check if we have a network device at all
+               if ! ls /sys/class/net/"$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
+                       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
 
-       if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) && do_httpmount
+       rc=1
+
+       if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
        then
-               rc=0
-               return ${rc}
+               do_httpmount
+               return $?
        fi
 
        if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
@@ -783,22 +792,76 @@ do_netmount ()
        return ${rc}
 }
 
+do_iscsi()
+{
+       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 "${host}" ]
+       then
+               local devices=""
+               local i=0
+               while [ -z "${devices}" -a $i -lt 60 ]
+               do
+                       sleep 1
+                       devices="$(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
+                               NETBOOT="iscsi"
+                               export NETBOOT
+                               return 0;
+                       fi
+               done
+               panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
+       else
+               panic "Failed to locate iSCSI host in /sys"
+       fi
+}
+
 do_httpmount ()
 {
        rc=1
-       dest="${mountpoint}/${LIVE_MEDIA_PATH}"
-       mount -t ramfs ram "${mountpoint}"
-       mkdir -p "${dest}"
 
        for webfile in HTTPFS FTPFS FETCH
        do
-               url="$(eval echo \"\$\{${webfile}\}\")"
-               extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
+               local url="$(eval echo \"\$\{${webfile}\}\")"
+               local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
 
                if [ -n "$url" ]
                then
                        case "${extension}" in
-                               squashfs|tgz|tar)
+                               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
@@ -826,9 +889,16 @@ do_httpmount ()
                                                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
                                        ;;
 
@@ -841,7 +911,15 @@ do_httpmount ()
 
        if [ ${rc} != 0 ]
        then
-           umount "${mountpoint}"
+               if [ -d "${alt_mountpoint}" ]
+               then
+                       umount "${alt_mountpoint}"
+                       rmdir "${alt_mountpoint}"
+               fi
+               umount "${mountpoint}"
+       elif [ "${webfile}"  != "FETCH" ] ; then
+               NETBOOT="${webfile}"
+               export NETBOOT
        fi
 
        return ${rc}
@@ -906,13 +984,15 @@ do_snap_copy ()
 
        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 $4}')
                else
-                       freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( awk '/\<Cached/{print $2}' /proc/meminfo))
+                       freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
                fi
 
                tomount="/mnt/tmpsnap"
@@ -943,9 +1023,8 @@ do_snap_copy ()
 
                return 0
        else
-               return 1
-
                log_warning_msg "Unable to find the snapshot ${snap_type} medium"
+               return 1
        fi
 }
 
@@ -953,28 +1032,39 @@ find_snap ()
 {
        # Look for ${snap_label}.* in block devices
        snap_label="${1}"
+       black_listed_devices="${2}"
 
        if [ "${PERSISTENT}" != "nofiles" ]
        then
                # search for image files
-               snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snap_label}.ext4 ${snap_label}.jffs2")
+               snapdata=$(find_files "${PERSISTENT_PATH}${snap_label}.squashfs ${PERSISTENT_PATH}${snap_label}.cpio.gz ${PERSISTENT_PATH}${snap_label}.ext2 ${PERSISTENT_PATH}${snap_label}.ext3 ${PERSISTENT_PATH}${snap_label}.ext4 ${PERSISTENT_PATH}${snap_label}.jffs2" "${black_listed_devices}")
        fi
 
        if [ -z "${snapdata}" ]
        then
-               snapdata=$(find_cow_device "${snap_label}")
+               snapdata=$(find_cow_device "${snap_label}" "${black_listed_devices}")
        fi
        echo "${snapdata}"
 }
 
 try_snap ()
 {
-        # copy the contents of previously found snapshot to ${snap_mount}
-       # and remember the device and filename for resync on exit in live-initramfs.init
+       # copy the contents of previously found snapshot to ${snap_mount}
+       # and remember the device and filename for resync on exit in live-boot.init
 
        snapdata="${1}"
        snap_mount="${2}"
        snap_type="${3}"
+       snap_relpath="${4}"
+
+       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
 
        if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
        then
@@ -983,29 +1073,50 @@ try_snap ()
                snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
                snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
 
-               RES=""
                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}" "${snap_type}"
-                       RES=$?
+                       RES="$?"
                else
                        # cpio.gz snapshot
-                       cd "${snap_mount}"
-                       zcat "${snapback}/${snapfile}" | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories > /dev/null 2>&1
-                       RES=$?
+
+                       # Unfortunately klibc's cpio is incompatible with the
+                       # rest of the world; everything else requires -u -d,
+                       # while klibc doesn't implement them. Try to detect
+                       # whether it's in use.
+                       cpiopath="$(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} | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories\""
+                               log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
                        fi
-                       cd "${OLDPWD}"
                fi
 
                umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
@@ -1032,7 +1143,7 @@ try_snap ()
 
                if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
                then
-                       log_warning_msg "Impossible to include the ${snap_type} Snapshot"
+                       log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)"
                        return 1
                else
                        if [ -n "${snapfile}" ]
@@ -1042,11 +1153,11 @@ try_snap ()
                        fi
                fi
        else
-               log_warning_msg "Impossible to include the ${snap_type} Snapshot"
+               log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)"
                return 1
        fi
 
-       echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt
+       echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
        return 0
 }
 
@@ -1054,8 +1165,26 @@ setup_unionfs ()
 {
        image_directory="${1}"
        rootmnt="${2}"
-        addimage_directory="${3}"
-       modprobe -q -b ${UNIONTYPE}
+       addimage_directory="${3}"
+
+       case ${UNIONTYPE} in
+               aufs|unionfs)
+                       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,
@@ -1065,17 +1194,15 @@ setup_unionfs ()
        croot="/"
 
        # Let's just mount the read-only file systems first
-       rofsstring=""
        rofslist=""
-       minor_kernel_version=$(uname -r|cut -c 5-|sed 's/[^0-9].*//')
 
-       if [ "${NETBOOT}" = "nfs" ] && [ "${minor_kernel_version}" -lt 22 ]
-       then
-               # go aroung a bug in nfs-unionfs locking for unionfs <= 1.4
-               roopt="nfsro"
-       elif [ "${UNIONTYPE}" = "aufs" ]
+       if [ "${UNIONTYPE}" = "aufs" ]
        then
                roopt="rr"
+               noxino_opt="noxino,"
+       elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
+       then
+               roopt="RO"
        else
                roopt="ro"
        fi
@@ -1126,7 +1253,7 @@ setup_unionfs ()
                        image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
                fi
 
-       [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
+               [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
 
                mkdir -p "${croot}"
 
@@ -1143,7 +1270,6 @@ setup_unionfs ()
                        if [ -d "${image}" ]
                        then
                                # it is a plain directory: do nothing
-                               rofsstring="${image}=${roopt}:${rofsstring}"
                                rofslist="${image} ${rofslist}"
                        elif [ -f "${image}" ]
                        then
@@ -1166,9 +1292,17 @@ setup_unionfs ()
                                        log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
                                fi
 
-                               mkdir -p "${croot}/${imagename}"
-                               log_begin_msg "Mounting \"${image}\" on \"${croot}${imagename}\" via \"${backdev}\""
-                               mount -t "${fstype}" -o ro,noatime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
+                               if [ "${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 ${mpoint}"
                                log_end_msg
                        fi
                done
@@ -1176,50 +1310,45 @@ setup_unionfs ()
                # we have a plain root system
                mkdir -p "${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 ${croot}/filesystem" && rofsstring="${croot}/filesystem=${roopt}:${rofsstring}" && rofslist="${croot}/filesystem ${rofslist}"
+               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
 
-       rofsstring=${rofsstring%:}
-
        mkdir -p /cow
 
        # Looking for "${root_persistence}" device or file
        if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
        then
-               # Load USB modules
-               num_block=$(ls -l /sys/block | wc -l)
-               for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
-               do
-                       modprobe -q -b ${module}
-               done
-
-               if [ -x /sbin/udevadm ]
+               if [ -z "${QUICKUSBMODULES}" ]
                then
-                       # lenny
+                       # 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
-               else
-                       # etch
-                       udevtrigger
-                       udevsettle
-               fi
 
-               # 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
+                       # 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
+                               if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
+                               then
+                                       break
+                               fi
+                       done
+               fi
 
                # search for label and files (this could be hugely optimized)
                cowprobe=$(find_cow_device "${root_persistence}")
@@ -1287,29 +1416,33 @@ setup_unionfs ()
                cow_mountopt="rw,noatime,mode=755"
        fi
 
-       if [ "${cow_fstype}" = "nfs" ]
+       if [ "${UNIONTYPE}" != "unionmount" ]
        then
-               log_begin_msg \
-                       "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
-               nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
-                       panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
-       else
-               mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
-                       panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
+
+               if [ "${cow_fstype}" = "nfs" ]
+               then
+                       log_begin_msg \
+                               "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
+                       nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
+                               panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
+               else
+                       mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
+                               panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
+               fi
        fi
 
        rofscount=$(echo ${rofslist} |wc -w)
 
-       if [ -n "${EXPOSED_ROOT}" ]
+       if [ ${rofscount} -ne 1 ]
        then
-               if [ ${rofscount} -ne 1 ]
-               then
-                       panic "only one RO file system supported with exposedroot: ${rofslist}"
-               fi
-               exposedrootfs=${rofslist%% }
+               panic "only one RO file system supported with exposedroot: ${rofslist}"
+       fi
+       rofs=${rofslist%% }
 
-               mount --bind ${exposedrootfs} ${rootmnt} || \
-                       panic "bind mount of ${exposedrootfs} failed"
+       if [ -n "${EXPOSED_ROOT}" ]
+       then
+               mount --bind ${rofs} ${rootmnt} || \
+                       panic "bind mount of ${rofs} failed"
 
                if [ -z "${SKIP_UNION_MOUNTS}" ]
                then
@@ -1317,21 +1450,50 @@ setup_unionfs ()
                else
                        cow_dirs=''
                fi
-
-               for dir in ${cow_dirs}; do
-                       mkdir -p /cow${dir}
-                       mount -t ${UNIONTYPE} \
-                               -o rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro \
-                               ${UNIONTYPE} "${rootmnt}${dir}" || \
-                               panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option \
-                                       rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro"
-               done
        else
-               mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} \
-                       ${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on \
-                       ${rootmnt} failed with option noatime,dirs=/cow=rw:${rofsstring}"
+               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
 
+       unionmountopts=""
+       unionmountpoint=""
+
+       for dir in ${cow_dirs}; do
+               mkdir -p /cow${dir}
+
+               unionmountpoint="${rootmnt}${dir}"
+               unionrw="/cow${dir}"
+               unionro="${rofs}${dir}"
+               # We don't handle spaces and other junk gracefully here, hopefully not needed.
+               case "${UNIONTYPE}" in
+                       unionfs-fuse)
+                               unionmountopts="-o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid"
+                               unionmountopts="${unionmountopts} ${unionrw}=RW:${unionro}=RO"
+                               ( sysctl -w fs.file-max=391524 ; ulimit -HSn 16384
+                               unionfs-fuse ${unionmountopts} "${unionmountpoint}" ) && \
+                                       ( mkdir -p /run/initramfs
+                               pidof unionfs-fuse >> /run/initramfs/sendsigs.omit || true )
+                               ;;
+
+                       unionmount)
+                               unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
+                               mount_full $unionmountopts "${unionmountpoint}"
+                               ;;
+
+
+                       *)
+                               unionmountopts="-o noatime,${noxino_opt}dirs=${unionrw}=rw:${unionro}=${roopt}"
+                               mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
+                               ;;
+               esac || \
+                       panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
+       done
+
        # Correct the permissions of /:
        chmod 0755 "${rootmnt}"
 
@@ -1357,7 +1519,7 @@ setup_unionfs ()
                # Look for other snapshots to copy in
                try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
                # This second type should be removed when snapshot grow smarter
-               try_snap "${home_snapdata}" "${rootmnt}/home" "HOME"
+               try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
        fi
 
        if [ -n "${SHOWMOUNTS}" ]
@@ -1372,7 +1534,15 @@ setup_unionfs ()
                                        ;;
 
                                *)
-                                       mount -o move "${d}" "${rootmnt}/live/${d##*/}"
+                                       case "${UNIONTYPE}" in
+                                               unionfs-fuse)
+                                                       mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
+                                                       ;;
+
+                                               *)
+                                                       mount -o move "${d}" "${rootmnt}/live/${d##*/}"
+                                                       ;;
+                                       esac
                                        ;;
                        esac
                done
@@ -1392,12 +1562,37 @@ check_dev ()
        # support for fromiso=.../isofrom=....
        if [ -n "$FROMISO" ]
        then
-               mkdir /isofrom
-               ISO_DEVICE="$(echo $FROMISO | sed 's|\(/dev/[a-z]*[0-9]*\).*|\1|')"
-               mount "$ISO_DEVICE" /isofrom
-               ISO_NAME="$(echo $FROMISO | sed 's|/dev/[a-z]*[0-9]*/||')"
-               loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
-               devname="${loopdevname}"
+               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 [ "$ISO_DEVICE" = "/" ]
+               then
+                       echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live-boot.log
+               else
+                       fs_type=$(get_fstype "${ISO_DEVICE}")
+                       if is_supported_fs ${fs_type}
+                       then
+                               mkdir /isofrom
+                               mount -t $fs_type "$ISO_DEVICE" /isofrom
+                               ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
+                               loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
+                               devname="${loopdevname}"
+                       else
+                               echo "Warning: unable to mount $ISO_DEVICE." >>/live-boot.log
+                       fi
+               fi
        fi
 
        if [ -z "${devname}" ]
@@ -1417,6 +1612,7 @@ check_dev ()
                        umount $mountpoint
                fi
        fi
+       [ -e "$devname" ] || continue
 
        if [ -n "${LIVE_MEDIA_OFFSET}" ]
        then
@@ -1428,7 +1624,10 @@ check_dev ()
 
        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 is_live_path ${mountpoint} && \
                        ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
@@ -1468,8 +1667,7 @@ find_livefs ()
                        do
                                if [ "$(cat ${sysblock}/removable)" = "1" ]
                                then
-                                       if readlink ${sysblock} | grep -q usb ||
-                                          readlink ${sysblock}/device | grep -q usb # linux < 2.6.29
+                                       if readlink ${sysblock} | grep -q usb
                                        then
                                                for dev in $(subdevices "${sysblock}")
                                                do
@@ -1481,6 +1679,7 @@ find_livefs ()
                                        fi
                                fi
                        done
+                       return 1
                        ;;
 
                removable)
@@ -1497,6 +1696,7 @@ find_livefs ()
                                        done
                                fi
                        done
+                       return 1
                        ;;
 
                *)
@@ -1511,9 +1711,22 @@ find_livefs ()
        esac
 
        # or do the scan of block devices
-       for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
+       # prefer removable devices over non-removable devices, so scan them first
+       for sysblock in $(echo /sys/block/* | tr ' ' '\n' | egrep -v "/(loop|ram|dm-|fd)")
+       do
+               if [ "$(cat ${sysblock}/removable)" = "1" ]
+               then
+                       removable_devices_to_scan="$removable_devices_to_scan $sysblock"
+               else
+                       nonremovable_devices_to_scan="$nonremovable_devices_to_scan $sysblock"
+               fi
+       done
+       devices_to_scan="$removable_devices_to_scan $nonremovable_devices_to_scan"
+
+       for sysblock in $devices_to_scan
        do
                devname=$(sys2dev "${sysblock}")
+               [ -e "$devname" ] || continue
                fstype=$(get_fstype "${devname}")
 
                if /lib/udev/cdrom_id ${devname} > /dev/null
@@ -1532,6 +1745,7 @@ find_livefs ()
                                fi
                        done
                elif [ "${fstype}" = "squashfs" -o \
+                       "${fstype}" = "btrfs" -o \
                        "${fstype}" = "ext2" -o \
                        "${fstype}" = "ext3" -o \
                        "${fstype}" = "ext4" -o \
@@ -1539,7 +1753,7 @@ find_livefs ()
                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.
+                       # live-boot, so take it and run with it.
                        ln -s "${devname}" "${devname}.${fstype}"
                        echo "${devname}.${fstype}"
                        return 0
@@ -1549,16 +1763,6 @@ find_livefs ()
        return 1
 }
 
-set_usplash_timeout ()
-{
-       if [ -x /sbin/usplash_write ]
-       then
-               /sbin/usplash_write "TIMEOUT 120"
-       else if [ -x /sbin/splashy_update ] ; then
-               /sbin/splashy_update "TIMEOUT 120"
-       fi ; fi
-}
-
 integrity_check ()
 {
        media_mountpoint="${1}"
@@ -1587,15 +1791,15 @@ integrity_check ()
 
 mountroot ()
 {
-        if [ -x /scripts/local-top/cryptroot ]; then
+       if [ -x /scripts/local-top/cryptroot ]; then
            /scripts/local-top/cryptroot
        fi
 
        exec 6>&1
        exec 7>&2
-       exec > live.log
+       exec > live-boot.log
        exec 2>&1
-       tail -f live.log >&7 &
+       tail -f live-boot.log >&7 &
        tailpid="${!}"
 
        # Ensure 'panic' function is overridden
@@ -1603,8 +1807,6 @@ mountroot ()
 
        Arguments
 
-       set_usplash_timeout
-
        maybe_break live-premount
        log_begin_msg "Running /scripts/live-premount"
        run_scripts /scripts/live-premount
@@ -1613,8 +1815,6 @@ mountroot ()
        # Needed here too because some things (*cough* udev *cough*)
        # changes the timeout
 
-       set_usplash_timeout
-
        if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
        then
                if do_netmount
@@ -1624,11 +1824,28 @@ mountroot ()
                        panic "Unable to find a live file system on the network"
                fi
        else
-               if [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
+               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 [ "$i" -lt 60 ]
@@ -1689,16 +1906,65 @@ mountroot ()
                mount_images_in_directory "${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
+
+       # 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
+
        exec 1>&6 6>&-
        exec 2>&7 7>&-
        kill ${tailpid}
-       [ -w "${rootmnt}/var/log/" ] && cp live.log "${rootmnt}/var/log/" 2>/dev/null
+       [ -w "${rootmnt}/var/log/" ] && cp live-boot.log "${rootmnt}/var/log/" 2>/dev/null
 }