5 export PATH="/root/usr/bin:/root/usr/sbin:/root/bin:/root/sbin:/usr/bin:/usr/sbin:/bin:/sbin"
7 echo "/root/lib" >> /etc/ld.so.conf
8 echo "/root/usr/lib" >> /etc/ld.so.conf
10 mountpoint="/live/image"
11 alt_mountpoint="/media"
12 LIVE_MEDIA_PATH="live"
14 root_persistence="live-rw"
15 home_persistence="home-rw"
16 root_snapshot_label="live-sn"
17 home_snapshot_label="home-sn"
20 USERFULLNAME="Live user"
23 mkdir -p "${mountpoint}"
26 # Create /etc/mtab for debug purpose and future syncs
37 . /scripts/live-helpers
39 if [ ! -f /live.vars ]
49 for ARGUMENT in $(cat /proc/cmdline)
58 export NOACCESSIBILITY NOFASTBOOT NOFSTAB NONETWORKING
62 ACCESS="${ARGUMENT#access=}"
67 DEFCONSOLE="${ARGUMENT#*=}"
83 # Force dhcp even while netbooting
84 # Use for debugging in case somebody works on fixing dhclient
94 DEVICE="${ARGUMENT#ethdevice=}"
96 export DEVICE ETHDEVICE
100 ETHDEV_TIMEOUT="${ARGUMENT#ethdevice-timeout=}"
101 export ETHDEV_TIMEOUT
105 FETCH="${ARGUMENT#fetch=}"
110 FORCEPERSISTENTFSCK="Yes"
111 export FORCEPERSISTENTFSCK
115 FTPFS="${ARGUMENT#ftpfs=}"
120 HTTPFS="${ARGUMENT#httpfs=}"
125 ISCSI="${ARGUMENT#iscsi=}"
126 #ip:port - separated by ;
127 ISCSI_PORTAL="${ISCSI%;*}"
128 if echo "${ISCSI_PORTAL}" | grep -q , ; then
129 ISCSI_SERVER="${ISCSI_PORTAL%,*}"
130 ISCSI_PORT="${ISCSI_PORTAL#*,}"
133 ISCSI_TARGET="${ISCSI#*;}"
134 export ISCSI ISCSI_PORTAL ISCSI_TARGET ISCSI_SERVER ISCSI_PORT
138 FROMISO="${ARGUMENT#*=}"
148 INTEGRITY_CHECK="Yes"
149 export INTEGRITY_CHECK
153 STATICIP="${ARGUMENT#ip=}"
155 if [ -z "${STATICIP}" ]
168 live-media=*|bootfrom=*)
169 LIVE_MEDIA="${ARGUMENT#*=}"
173 live-media-encryption=*|encryption=*)
174 LIVE_MEDIA_ENCRYPTION="${ARGUMENT#*=}"
175 export LIVE_MEDIA_ENCRYPTION
179 LIVE_MEDIA_OFFSET="${ARGUMENT#live-media-offset=}"
180 export LIVE_MEDIA_OFFSET
184 LIVE_MEDIA_PATH="${ARGUMENT#live-media-path=}"
185 export LIVE_MEDIA_PATH
188 live-media-timeout=*)
189 LIVE_MEDIA_TIMEOUT="${ARGUMENT#live-media-timeout=}"
190 export LIVE_MEDIA_TIMEOUT
194 MODULE="${ARGUMENT#module=}"
199 NETBOOT="${ARGUMENT#netboot=}"
204 NFSOPTS="${ARGUMENT#nfsopts=}"
209 NFS_COW="${ARGUMENT#nfscow=}"
214 NOACCESSIBILITY="Yes"
215 export NOACCESSIBILITY
234 ramdisk_size="${ARGUMENT#ramdisk-size=}"
248 PERSISTENT="${ARGUMENT#persistent=}"
249 if [ -z "${PERSISTENT}" ]
257 PERSISTENT_PATH="${ARGUMENT#persistent-path=}"
258 export PERSISTENT_PATH
261 persistent-subtext=*)
262 root_persistence="${root_persistence}-${ARGUMENT#persistent-subtext=}"
263 home_persistence="${home_persistence}-${ARGUMENT#persistent-subtext=}"
264 root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
265 home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistent-subtext=}"
279 NOPROMPT="${ARGUMENT#noprompt=}"
284 QUICKUSBMODULES="Yes"
285 export QUICKUSBMODULES
288 preseed/file=*|file=*)
289 LOCATIONS="${ARGUMENT#*=} ${LOCATIONS}"
299 question="${ARGUMENT%%=*}"
300 value="${ARGUMENT#*=}"
301 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
316 TODISK="${ARGUMENT#todisk=}"
327 MODULETORAM="${ARGUMENT#toram=}"
328 export TORAM MODULETORAM
342 SKIP_UNION_MOUNTS="Yes"
343 export SKIP_UNION_MOUNTS
347 ROOT="${ARGUMENT#root=}"
352 UNIONTYPE="${ARGUMENT#union=}"
358 # sort of compatibility with netboot.h from linux docs
359 if [ -z "${NETBOOT}" ]
361 if [ "${ROOT}" = "/dev/nfs" ]
365 elif [ "${ROOT}" = "/dev/cifs" ]
372 if [ -z "${MODULE}" ]
378 if [ -z "${UNIONTYPE}" ]
389 if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
391 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs dir jffs2
393 if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
405 if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
411 uuid="$(cat /conf/uuid.conf)"
413 for try_uuid_file in "${path}/.disk/live-uuid"*
415 [ -e "${try_uuid_file}" ] || continue
417 try_uuid="$(cat "${try_uuid_file}")"
419 if [ "${uuid}" = "${try_uuid}" ]
428 get_backing_device ()
431 *.squashfs|*.ext2|*.ext3|*.ext4|*.jffs2)
432 echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
440 panic "Unrecognized live filesystem: ${1}"
445 match_files_in_dir ()
447 # Does any files match pattern ${1} ?
450 if [ "$(echo ${pattern})" != "${pattern}" ]
458 mount_images_in_directory ()
465 if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
466 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
467 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
468 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext4" ||
469 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
470 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
472 [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
473 setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
475 panic "No supported filesystem images found at /${LIVE_MEDIA_PATH}."
481 sysfs_path="${1#/sys}"
483 if /lib/udev/path_id "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-|platform-sata_mv|platform-orion-ehci|platform-mmc|platform-mxsdhci|)"
486 elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
489 elif echo ${sysfs_path} | grep -q "^/block/dm-"
492 elif echo ${sysfs_path} | grep -q "^/block/mtdblock"
504 copyto="${copyfrom}_swap"
506 if [ -z "${MODULETORAM}" ]
508 size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "used")
510 MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
512 if [ -f "${MODULETORAMFILE}" ]
514 size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
516 log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
521 if [ "${copytodev}" = "ram" ]
524 freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
525 mount_options="-o size=${size}k"
530 # it should be a writable block device
531 if [ -b "${copytodev}" ]
535 fstype=$(get_fstype "${dev}")
536 freespace=$(fs_size "${dev}")
538 log_warning_msg "${copytodev} is not a block device."
543 if [ "${freespace}" -lt "${size}" ]
545 log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
549 # Custom ramdisk size
550 if [ -z "${mount_options}" ] && [ -n "${ramdisk_size}" ]
552 # FIXME: should check for wrong values
553 mount_options="-o size=${ramdisk_size}"
556 # begin copying (or uncompressing)
558 log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
559 mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
561 if [ "${extension}" = "tgz" ]
564 tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
565 rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
566 mount -r -o move "${copyto}" "${rootmnt}"
569 if [ -n "${MODULETORAMFILE}" ]
573 echo " * Copying $MODULETORAMFILE to RAM" 1>/dev/console
574 rsync -a --progress ${MODULETORAMFILE} ${copyto} 1>/dev/console # copy only the filesystem module
576 cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
581 echo " * Copying whole medium to RAM" 1>/dev/console
582 rsync -a --progress ${copyfrom}/* ${copyto} 1>/dev/console # "cp -a" from busybox also copies hidden files
584 mkdir -p ${copyto}/${LIVE_MEDIA_PATH}
585 cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/* ${copyto}/${LIVE_MEDIA_PATH}
586 if [ -e ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ]
588 cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ${copyto}
594 mount -r -o move ${copyto} ${copyfrom}
603 modprobe -q af_packet # For DHCP
608 [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
609 echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
611 if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \
612 [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
616 # support for Syslinux IPAPPEND parameter
617 # it sets the BOOTIF variable on the kernel parameter
619 if [ -n "${BOOTIF}" ]
621 # pxelinux sets BOOTIF to a value based on the mac address of the
622 # network card used to PXE boot, so use this value for DEVICE rather
623 # than a hard-coded device name from initramfs.conf. this facilitates
624 # network booting when machines may have multiple network cards.
625 # pxelinux sets BOOTIF to 01-$mac_address
627 # strip off the leading "01-", which isn't part of the mac
629 temp_mac=${BOOTIF#*-}
631 # convert to typical mac address format by replacing "-" with ":"
636 if [ -z "$bootif_mac" ]
640 bootif_mac="$bootif_mac:$x"
645 # look for devices with matching mac address, and set DEVICE to
646 # appropriate value if match is found.
648 for device in /sys/class/net/*
650 if [ -f "$device/address" ]
652 current_mac=$(cat "$device/address")
654 if [ "$bootif_mac" = "$current_mac" ]
663 # if ethdevice was not specified on the kernel command line
664 # make sure we try to get a working network configuration
665 # for *every* present network device (except for loopback of course)
666 if [ -z "$ETHDEVICE" ] ; then
667 echo "If you want to boot from a specific device use bootoption ethdevice=..."
668 for device in /sys/class/net/*; do
670 if [ "$dev" != "lo" ] ; then
671 ETHDEVICE="$ETHDEVICE $dev"
676 # split args of ethdevice=eth0,eth1 into "eth0 eth1"
677 for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
678 devlist="$devlist $device"
681 # this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
682 # an endless loop; iff execution fails give it two further tries, that's
683 # why we use '$devlist $devlist $devlist' for the other for loop
684 for dev in $devlist $devlist $devlist ; do
685 echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
686 ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config &
688 sleep "$ETHDEV_TIMEOUT" ; sleep 1
689 if [ -r /proc/"$jobid"/status ] ; then
690 echo "Killing job $jobid for device $dev as ipconfig ran into recursion..."
694 # if configuration of device worked we should have an assigned
695 # IP address, iff so let's use the according as $DEVICE for later usage
696 # simple and primitive approach which seems to work fine
697 if ifconfig $dev | grep -q 'inet.*addr:' ; then
704 for interface in ${DEVICE}; do
705 ipconfig -t "$ETHDEV_TIMEOUT" ${interface} | tee /netboot-${interface}.config
706 [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
707 if [ "$IPV4ADDR" != "0.0.0.0" ]
714 for interface in ${DEVICE}; do
715 # source relevant ipconfig output
716 OLDHOSTNAME=${HOSTNAME}
717 [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
718 [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
721 if [ -n "${interface}" ]
723 HWADDR="$(cat /sys/class/net/${interface}/address)"
726 if [ ! -e "/etc/resolv.conf" ]
728 echo "Creating /etc/resolv.conf"
730 if [ -n "${DNSDOMAIN}" ]
732 echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
733 echo "search ${DNSDOMAIN}" >> /etc/resolv.conf
736 for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
738 if [ -n "$i" ] && [ "$i" != 0.0.0.0 ]
740 echo "nameserver $i" >> /etc/resolv.conf
745 # Check if we have a network device at all
746 if ! ls /sys/class/net/"$interface" > /dev/null 2>&1 && \
747 ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
748 ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
749 ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
750 ! ls /sys/class/net/ra0 > /dev/null 2>&1
752 panic "No supported network device found, maybe a non-mainline driver is required."
761 if [ "${NFSROOT}" = "auto" ]
763 NFSROOT=${ROOTSERVER}:${ROOTPATH}
768 if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
774 if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
776 NFSROOT=${ROOTSERVER}:${NFSROOT}
779 log_begin_msg "Trying netboot from ${NFSROOT}"
781 if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
801 [ "${DEBUG}" == "Yes" ] && debugopt="-d 8"
802 #FIXME this name is supposed to be unique - some date + ifconfig hash?
803 ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
804 export ISCSI_INITIATORNAME
805 if [ -n "${ISCSI_SERVER}" ] ; then
806 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
808 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
812 panic "Failed to log into iscsi target"
814 local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
815 /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
820 while [ -z "${devices}" -a $i -lt 60 ]
823 devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
824 /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
830 if check_dev "null" "/dev/$dev"
837 panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
839 panic "Failed to locate iSCSI host in /sys"
847 for webfile in HTTPFS FTPFS FETCH
849 local url="$(eval echo \"\$\{${webfile}\}\")"
850 local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
854 case "${extension}" in
855 iso|squashfs|tgz|tar)
856 if [ "${extension}" = "iso" ]
858 mkdir -p "${alt_mountpoint}"
859 dest="${alt_mountpoint}"
861 local dest="${mountpoint}/${LIVE_MEDIA_PATH}"
862 mount -t ramfs ram "${mountpoint}"
865 if [ "${webfile}" = "FETCH" ]
869 ip="$(dirname $url | sed -e 's|tftp://||g' -e 's|/.*$||g')"
870 rfile="$(echo $url | sed -e "s|tftp://$ip||g")"
871 lfile="$(basename $url)"
872 log_begin_msg "Trying tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip"
873 tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip
877 log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
878 wget "${url}" -O "${dest}/$(basename ${url})"
882 log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
883 if [ "${webfile}" = "FTPFS" ]
885 FUSE_MOUNT="curlftpfs"
886 url="$(dirname ${url})"
891 $FUSE_MOUNT "${url}" "${dest}"
892 ROOT_PID="$(minips h -C "$FUSE_MOUNT" | { read x y ; echo "$x" ; } )"
894 [ ${?} -eq 0 ] && rc=0
895 [ "${extension}" = "tgz" ] && live_dest="ram"
896 if [ "${extension}" = "iso" ]
898 isoloop=$(setup_loop "${dest}/$(basename "${url}")" "loop" "/sys/block/loop*" "" '')
899 mount -t iso9660 "${isoloop}" "${mountpoint}"
906 log_begin_msg "Unrecognized archive extension for ${url}"
914 if [ -d "${alt_mountpoint}" ]
916 umount "${alt_mountpoint}"
917 rmdir "${alt_mountpoint}"
919 umount "${mountpoint}"
920 elif [ "${webfile}" != "FETCH" ] ; then
934 if [ -z "${NFSOPTS}" ]
939 log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
941 # FIXME: This while loop is an ugly HACK round an nfs bug
943 while [ "$i" -lt 60 ]
945 nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
957 if [ -x "/sbin/mount.cifs" ]
959 if [ -z "${NFSOPTS}" ]
961 CIFSOPTS="-ouser=root,password="
963 CIFSOPTS="${NFSOPTS}"
966 log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
969 if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
983 size=$(fs_size "${fromdev}" "" "used")
985 if [ -b "${fromdev}" ]
987 log_success_msg "Copying snapshot ${fromdev} to ${todir}..."
990 if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
992 todev=$(awk -v pat="$(base_path ${todir})" '$2 == pat { print $1 }' /proc/mounts)
993 freespace=$(df -k | awk '/'${todev}'/{print $4}')
995 freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
998 tomount="/mnt/tmpsnap"
1000 if [ ! -d "${tomount}" ]
1002 mkdir -p "${tomount}"
1005 fstype=$(get_fstype "${fromdev}")
1007 if [ -n "${fstype}" ]
1010 mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
1011 cp -a "${tomount}"/* ${todir}
1014 log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
1019 if echo ${fromdev} | grep -qs loop
1021 losetup -d "${fromdev}"
1026 log_warning_msg "Unable to find the snapshot ${snap_type} medium"
1033 # Look for ${snap_label}.* in block devices
1035 black_listed_devices="${2}"
1037 if [ "${PERSISTENT}" != "nofiles" ]
1039 # search for image files
1040 snapdata=$(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" "${black_listed_devices}")
1043 if [ -z "${snapdata}" ]
1045 snapdata=$(find_cow_device "${snap_label}" "${black_listed_devices}")
1052 # copy the contents of previously found snapshot to ${snap_mount}
1053 # and remember the device and filename for resync on exit in live-boot.init
1060 if [ -z "${snap_relpath}" ]
1062 # root snapshot, default usage
1065 # relative snapshot (actually used just for "/home" snapshots)
1066 snap_mount="${2}${snap_relpath}"
1069 if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
1071 log_success_msg "found snapshot: ${snapdata}"
1072 snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
1073 snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
1074 snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
1076 if ! try_mount "${snapdev}" "${snapback}" "ro"
1083 if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|ext4\|jffs2\)'
1085 # squashfs, jffs2 or ext2/ext3/ext4 snapshot
1086 dev=$(get_backing_device "${snapback}/${snapfile}")
1088 do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1093 # Unfortunately klibc's cpio is incompatible with the
1094 # rest of the world; everything else requires -u -d,
1095 # while klibc doesn't implement them. Try to detect
1096 # whether it's in use.
1097 cpiopath="$(which cpio)" || true
1098 if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath"
1102 cpioargs='--unconditional --make-directories'
1105 if [ -s "${snapback}/${snapfile}" ]
1108 cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null
1112 log_warning_msg "${snapback}/${snapfile} is empty, adding it for sync on reboot."
1116 if [ "${RES}" != "0" ]
1118 log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
1122 umount "${snapback}" || log_warning_msg "failure to \"umount ${snapback}\""
1124 if [ "${RES}" != "0" ]
1126 log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
1129 elif [ -b "${snapdata}" ]
1131 # Try to find if it could be a snapshot partition
1133 log_success_msg "found snapshot ${snap_type} device on ${dev}"
1134 if echo "${dev}" | grep -qs loop
1136 # strange things happens, user confused?
1137 snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
1138 snapfile=$(basename ${snaploop})
1139 snapdev=$(awk -v pat="$( dirname ${snaploop})" '$2 == pat { print $1 }' /proc/mounts)
1144 if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1146 log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)"
1149 if [ -n "${snapfile}" ]
1151 # it was a loop device, user confused
1156 log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)"
1160 echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
1166 image_directory="${1}"
1168 addimage_directory="${3}"
1170 case ${UNIONTYPE} in
1172 modprobe -q -b ${UNIONTYPE}
1174 if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ]
1176 echo "${UNIONTYPE} not available, falling back to unionfs-fuse."
1177 echo "This might be really slow."
1179 UNIONTYPE="unionfs-fuse"
1184 if [ "${UNIONTYPE}" = unionfs-fuse ]
1189 # run-init can't deal with images in a subdir, but we're going to
1190 # move all of these away before it runs anyway. No, we're not,
1191 # put them in / since move-mounting them into / breaks mono and
1196 # Let's just mount the read-only file systems first
1199 if [ "${UNIONTYPE}" = "aufs" ]
1202 noxino_opt="noxino,"
1203 elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
1210 if [ -z "${PLAIN_ROOT}" ]
1212 # Read image names from ${MODULE}.module if it exists
1213 if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
1215 for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
1217 image_string="${image_string} ${image_directory}/${IMAGE}"
1219 elif [ -e "${image_directory}/${MODULE}.module" ]
1221 for IMAGE in $(cat ${image_directory}/${MODULE}.module)
1223 image_string="${image_string} ${image_directory}/${IMAGE}"
1226 # ${MODULE}.module does not exist, create a list of images
1227 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1229 for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
1231 if [ -e "${IMAGE}" ]
1233 image_string="${image_string} ${IMAGE}"
1238 if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
1240 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1242 for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
1244 if [ -e "${IMAGE}" ]
1246 image_string="${image_string} ${IMAGE}"
1253 image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
1256 [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
1260 for image in ${image_string}
1262 imagename=$(basename "${image}")
1264 export image devname
1265 maybe_break live-realpremount
1266 log_begin_msg "Running /scripts/live-realpremount"
1267 run_scripts /scripts/live-realpremount
1270 if [ -d "${image}" ]
1272 # it is a plain directory: do nothing
1273 rofslist="${image} ${rofslist}"
1274 elif [ -f "${image}" ]
1276 if losetup --help 2>&1 | grep -q -- "-r\b"
1278 backdev=$(get_backing_device "${image}" "-r")
1280 backdev=$(get_backing_device "${image}")
1282 fstype=$(get_fstype "${backdev}")
1284 if [ "${fstype}" = "unknown" ]
1286 panic "Unknown file system type on ${backdev} (${image})"
1289 if [ -z "${fstype}" ]
1291 fstype="${imagename##*.}"
1292 log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
1295 if [ "${UNIONTYPE}" != "unionmount" ]
1297 mpoint="${croot}/${imagename}"
1298 rofslist="${mpoint} ${rofslist}"
1301 rofslist="${rootmnt} ${rofslist}"
1303 mkdir -p "${mpoint}"
1304 log_begin_msg "Mounting \"${image}\" on \"${mpoint}\" via \"${backdev}\""
1305 mount -t "${fstype}" -o ro,noatime "${backdev}" "${mpoint}" || panic "Can not mount ${backdev} (${image}) on ${mpoint}"
1310 # we have a plain root system
1311 mkdir -p "${croot}/filesystem"
1312 log_begin_msg "Mounting \"${image_directory}\" on \"${croot}/filesystem\""
1313 mount -t $(get_fstype "${image_directory}") -o ro,noatime "${image_directory}" "${croot}/filesystem" || \
1314 panic "Can not mount ${image_directory} on ${croot}/filesystem" && \
1315 rofslist="${croot}/filesystem ${rofslist}"
1317 mount -o bind ${croot}/filesystem $mountpoint
1323 # Looking for "${root_persistence}" device or file
1324 if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1326 if [ -z "${QUICKUSBMODULES}" ]
1329 num_block=$(ls -l /sys/block | wc -l)
1330 for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
1332 modprobe -q -b ${module}
1338 # For some reason, udevsettle does not block in this scenario,
1339 # so we sleep for a little while.
1341 # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
1342 for timeout in 5 4 3 2 1
1346 if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
1353 # search for label and files (this could be hugely optimized)
1354 cowprobe=$(find_cow_device "${root_persistence}")
1355 if [ -b "${cowprobe}" ]
1357 # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots
1358 # makes sense to have both persistence for /cow and /home mounted, maybe also with
1359 # snapshots to be sure to really store some e.g key config files,
1360 # but not on the same media
1361 blacklistdev="${cowprobe}"
1362 PERSISTENCE_IS_ON="1"
1363 export PERSISTENCE_IS_ON
1365 # homecow just mount something on /home, this should be generalized some way
1366 homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}")
1367 if [ -b "${homecow}" ]
1369 PERSISTENCE_IS_ON="1"
1370 export PERSISTENCE_IS_ON
1372 root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}")
1373 # This second type should be removed when snapshot will get smarter,
1374 # hence when "/etc/live-snapshot*list" will be supported also by
1375 # ext2|ext3|ext4|jffs2 snapshot types.
1376 home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}")
1378 if [ -b "${cowprobe}" ]
1380 cowdevice=${cowprobe}
1381 cow_fstype=$(get_fstype "${cowprobe}")
1382 cow_mountopt="rw,noatime"
1384 if [ "${FORCEPERSISTENTFSCK}" = "Yes" ]
1386 fsck -y ${cowdevice}
1389 log_warning_msg "Unable to find the persistent medium"
1392 cow_mountopt="rw,noatime,mode=755"
1394 elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
1396 # check if there are any nfs options
1397 if echo ${NFS_COW}|grep -q ','
1399 nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
1400 nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
1402 nfs_cow_opts="-o nolock"
1408 cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
1411 panic "unable to determine mac address"
1416 cow_mountopt="rw,noatime,mode=755"
1419 if [ "${UNIONTYPE}" != "unionmount" ]
1422 if [ "${cow_fstype}" = "nfs" ]
1425 "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
1426 nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
1427 panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
1429 mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
1430 panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
1434 rofscount=$(echo ${rofslist} |wc -w)
1436 if [ ${rofscount} -ne 1 ]
1438 panic "only one RO file system supported with exposedroot: ${rofslist}"
1442 if [ -n "${EXPOSED_ROOT}" ]
1444 mount --bind ${rofs} ${rootmnt} || \
1445 panic "bind mount of ${rofs} failed"
1447 if [ -z "${SKIP_UNION_MOUNTS}" ]
1449 cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool /home /var/lib/live'
1457 if [ "${cow_fstype}" != "tmpfs" ] && [ "${cow_dirs}" != "/" ] && [ "${UNIONTYPE}" = "unionmount" ]
1459 true # FIXME: Maybe it does, I don't really know.
1460 #panic "unionmount does not support subunions (${cow_dirs})."
1466 for dir in ${cow_dirs}; do
1469 unionmountpoint="${rootmnt}${dir}"
1470 unionrw="/cow${dir}"
1471 unionro="${rofs}${dir}"
1472 # We don't handle spaces and other junk gracefully here, hopefully not needed.
1473 case "${UNIONTYPE}" in
1475 unionmountopts="-o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid"
1476 unionmountopts="${unionmountopts} ${unionrw}=RW:${unionro}=RO"
1477 ( sysctl -w fs.file-max=391524 ; ulimit -HSn 16384
1478 unionfs-fuse ${unionmountopts} "${unionmountpoint}" ) && \
1479 ( mkdir -p /run/sendsigs.omit.d
1480 pidof unionfs-fuse >> /run/sendsigs.omit.d/unionfs-fuse || true )
1484 unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
1485 mount_full $unionmountopts "${unionmountpoint}"
1490 unionmountopts="-o noatime,${noxino_opt}dirs=${unionrw}=rw:${unionro}=${roopt}"
1491 mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
1494 panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
1497 # Correct the permissions of /:
1498 chmod 0755 "${rootmnt}"
1500 # tmpfs file systems
1502 mkdir -p "${rootmnt}/live"
1503 mount -t tmpfs tmpfs ${rootmnt}/live
1505 # Adding other custom mounts
1506 if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1508 # directly mount /home
1509 # FIXME: add a custom mounts configurable system
1511 if [ -b "${homecow}" ]
1513 mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
1514 export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
1516 log_warning_msg "Unable to find the persistent home medium"
1519 # Look for other snapshots to copy in
1520 try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
1521 # This second type should be removed when snapshot grow smarter
1522 try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
1525 if [ -n "${SHOWMOUNTS}" ]
1527 for d in ${rofslist}
1529 mkdir -p "${rootmnt}/live/${d##*/}"
1533 # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1537 case "${UNIONTYPE}" in
1539 mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1543 mount -o move "${d}" "${rootmnt}/live/${d##*/}"
1551 # shows cow fs on /cow for use by live-snapshot
1552 mkdir -p "${rootmnt}/live/cow"
1553 mount -o move /cow "${rootmnt}/live/cow" >/dev/null 2>&1 || mount -o bind /cow "${rootmnt}/live/cow" || log_warning_msg "Unable to move or bind /cow to ${rootmnt}/live/cow"
1560 skip_uuid_check="${3}"
1562 # support for fromiso=.../isofrom=....
1563 if [ -n "$FROMISO" ]
1565 ISO_DEVICE=$(dirname $FROMISO)
1566 if ! [ -b $ISO_DEVICE ]
1568 # to support unusual device names like /dev/cciss/c0d0p1
1569 # as well we have to identify the block device name, let's
1570 # do that for up to 15 levels
1572 while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
1574 ISO_DEVICE=$(dirname ${ISO_DEVICE})
1575 [ -b "$ISO_DEVICE" ] && break
1580 if [ "$ISO_DEVICE" = "/" ]
1582 echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live-boot.log
1584 fs_type=$(get_fstype "${ISO_DEVICE}")
1585 if is_supported_fs ${fs_type}
1588 mount -t $fs_type "$ISO_DEVICE" /isofrom
1589 ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
1590 loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
1591 devname="${loopdevname}"
1593 echo "Warning: unable to mount $ISO_DEVICE." >>/live-boot.log
1598 if [ -z "${devname}" ]
1600 devname=$(sys2dev "${sysdev}")
1603 if [ -d "${devname}" ]
1605 mount -o bind "${devname}" $mountpoint || continue
1607 if is_live_path $mountpoint
1617 for device in ${devname}
1621 # Adding lvm support
1622 if [ -x /scripts/local-top/lvm2 ]
1624 ROOT="$device" resume="" /scripts/local-top/lvm2
1629 # Adding raid support
1630 if [ -x /scripts/local-top/mdadm ]
1632 cp /conf/conf.d/md /conf/conf.d/md.orig
1633 echo "MD_DEVS=$device " >> /conf/conf.d/md
1634 /scripts/local-top/mdadm
1635 mv /conf/conf.d/md.orig /conf/conf.d/md
1642 [ -n "$device" ] && devname="$device"
1644 [ -e "$devname" ] || continue
1646 if [ -n "${LIVE_MEDIA_OFFSET}" ]
1648 loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
1649 devname="${loopdevname}"
1652 fstype=$(get_fstype "${devname}")
1654 if is_supported_fs ${fstype}
1656 devuid=$(blkid -o value -s UUID "$devname")
1657 [ -n "$devuid" ] && grep -qs "\<$devuid\>" $tried && continue
1658 mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
1659 [ -n "$devuid" ] && echo "$devuid" >> $tried
1661 if is_live_path ${mountpoint} && \
1662 ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
1667 umount ${mountpoint}
1671 if [ -n "${LIVE_MEDIA_OFFSET}" ]
1673 losetup -d "${loopdevname}"
1683 # don't start autodetection before timeout has expired
1684 if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
1686 if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
1692 # first look at the one specified in the command line
1693 case "${LIVE_MEDIA}" in
1695 for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
1697 if [ "$(cat ${sysblock}/removable)" = "1" ]
1699 if readlink ${sysblock} | grep -q usb
1701 for dev in $(subdevices "${sysblock}")
1703 if check_dev "${dev}"
1715 for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
1717 if [ "$(cat ${sysblock}/removable)" = "1" ]
1719 for dev in $(subdevices "${sysblock}")
1721 if check_dev "${dev}"
1732 if [ ! -z "${LIVE_MEDIA}" ]
1734 if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
1742 # or do the scan of block devices
1743 # prefer removable devices over non-removable devices, so scan them first
1744 for sysblock in $(echo /sys/block/* | tr ' ' '\n' | egrep -v "/(loop|ram|dm-|fd)")
1746 if [ "$(cat ${sysblock}/removable)" = "1" ]
1748 removable_devices_to_scan="$removable_devices_to_scan $sysblock"
1750 nonremovable_devices_to_scan="$nonremovable_devices_to_scan $sysblock"
1753 devices_to_scan="$removable_devices_to_scan $nonremovable_devices_to_scan"
1755 for sysblock in $devices_to_scan
1757 devname=$(sys2dev "${sysblock}")
1758 [ -e "$devname" ] || continue
1759 fstype=$(get_fstype "${devname}")
1761 if /lib/udev/cdrom_id ${devname} > /dev/null
1763 if check_dev "null" "${devname}"
1767 elif is_nice_device "${sysblock}"
1769 for dev in $(subdevices "${sysblock}")
1771 if check_dev "${dev}"
1776 elif [ "${fstype}" = "squashfs" -o \
1777 "${fstype}" = "btrfs" -o \
1778 "${fstype}" = "ext2" -o \
1779 "${fstype}" = "ext3" -o \
1780 "${fstype}" = "ext4" -o \
1781 "${fstype}" = "jffs2" ]
1783 # This is an ugly hack situation, the block device has
1784 # an image directly on it. It's hopefully
1785 # live-boot, so take it and run with it.
1786 ln -s "${devname}" "${devname}.${fstype}"
1787 echo "${devname}.${fstype}"
1797 media_mountpoint="${1}"
1799 log_begin_msg "Checking media integrity"
1801 cd ${media_mountpoint}
1802 /bin/md5sum -c md5sum.txt < /dev/tty8 > /dev/tty8
1807 if [ "${RC}" -eq 0 ]
1809 log_success_msg "Everything ok, will reboot in 10 seconds."
1812 umount ${media_mountpoint}
1814 echo u > /proc/sysrq-trigger
1815 echo b > /proc/sysrq-trigger
1817 panic "Not ok, a media defect is likely, switch to VT8 for details."
1823 if [ -x /scripts/local-top/cryptroot ]; then
1824 /scripts/local-top/cryptroot
1829 exec > live-boot.log
1831 tail -f live-boot.log >&7 &
1834 # Ensure 'panic' function is overridden
1835 . /scripts/live-functions
1839 maybe_break live-premount
1840 log_begin_msg "Running /scripts/live-premount"
1841 run_scripts /scripts/live-premount
1844 # Needed here too because some things (*cough* udev *cough*)
1845 # changes the timeout
1847 if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
1851 livefs_root="${mountpoint}"
1853 panic "Unable to find a live file system on the network"
1856 if [ -n "${ISCSI_PORTAL}" ]
1858 do_iscsi && livefs_root="${mountpoint}"
1859 elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
1861 # Do a local boot from hd
1864 if [ -x /usr/bin/memdiskfind ]
1866 MEMDISK=$(/usr/bin/memdiskfind)
1870 # We found a memdisk, set up phram
1871 modprobe phram phram=memdisk,${MEMDISK}
1873 # Load mtdblock, the memdisk will be /dev/mtdblock0
1878 # Scan local devices for the image
1880 while [ "$i" -lt 60 ]
1882 livefs_root=$(find_livefs ${i})
1884 if [ -n "${livefs_root}" ]
1895 if [ -z "${livefs_root}" ]
1897 panic "Unable to find a medium containing a live file system"
1900 if [ "${INTEGRITY_CHECK}" ]
1902 integrity_check "${livefs_root}"
1908 elif [ "${TODISK}" ]
1910 live_dest="${TODISK}"
1913 if [ "${live_dest}" ]
1915 log_begin_msg "Copying live media to ${live_dest}"
1916 copy_live_to "${livefs_root}" "${live_dest}"
1920 # if we do not unmount the ISO we can't run "fsck /dev/ice" later on
1921 # because the mountpoint is left behind in /proc/mounts, so let's get
1922 # rid of it when running from RAM
1923 if [ -n "$FROMISO" ] && [ "${TORAM}" ]
1925 losetup -d /dev/loop0
1926 grep -q /isofrom /proc/mounts && umount /isofrom
1929 if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
1931 setup_unionfs "${livefs_root}" "${rootmnt}"
1934 mac="$(echo ${mac} | sed 's/-//g')"
1935 mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
1939 if [ -n "${ROOT_PID}" ] ; then
1940 echo "${ROOT_PID}" > "${rootmnt}"/live/root.pid
1945 # unionfs-fuse needs /dev to be bind-mounted for the duration of
1946 # live-bottom; udev's init script will take care of things after that
1947 if [ "${UNIONTYPE}" = unionfs-fuse ]
1949 mount -n -o bind /dev "${rootmnt}/dev"
1952 # Move to the new root filesystem so that programs there can get at it.
1953 if [ ! -d /root/live/image ]
1955 mkdir -p /root/live/image
1956 mount --move /live/image /root/live/image
1959 # aufs2 in kernel versions around 2.6.33 has a regression:
1960 # directories can't be accessed when read for the first the time,
1961 # causing a failure for example when accessing /var/lib/fai
1962 # when booting FAI, this simple workaround solves it
1963 ls /root/* >/dev/null 2>&1
1965 # copy snapshot configuration if exists
1966 if [ -f snapshot.conf ]
1968 log_begin_msg "Copying snapshot.conf to ${rootmnt}/etc/live/boot.d"
1969 if [ ! -d "${rootmnt}/etc/live/boot.d" ]
1971 mkdir -p "${rootmnt}/etc/live/boot.d"
1973 cp snapshot.conf "${rootmnt}/etc/live/boot.d/"
1977 if [ -f /etc/resolv.conf ] && [ ! -s ${rootmnt}/etc/resolv.conf ]
1979 log_begin_msg "Copying /etc/resolv.conf to ${rootmnt}/etc/resolv.conf"
1980 cp -v /etc/resolv.conf ${rootmnt}/etc/resolv.conf
1984 maybe_break live-bottom
1985 log_begin_msg "Running /scripts/live-bottom\n"
1987 run_scripts /scripts/live-bottom
1990 if [ "${UNIONFS}" = unionfs-fuse ]
1992 umount "${rootmnt}/dev"
1998 [ -w "${rootmnt}/var/log/" ] && cp live-boot.log "${rootmnt}/var/log/" 2>/dev/null