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="${ARGUMENT#*=}"
79 # Force dhcp even while netbooting
80 # Use for debugging in case somebody works on fixing dhclient
90 DEVICE="${ARGUMENT#ethdevice=}"
92 export DEVICE ETHDEVICE
96 ETHDEV_TIMEOUT="${ARGUMENT#ethdevice-timeout=}"
101 FETCH="${ARGUMENT#fetch=}"
106 FORCEPERSISTENTFSCK="Yes"
107 export FORCEPERSISTENTFSCK
111 FTPFS="${ARGUMENT#ftpfs=}"
116 HTTPFS="${ARGUMENT#httpfs=}"
121 ISCSI="${ARGUMENT#iscsi=}"
122 #ip:port - separated by ;
123 ISCSI_PORTAL="${ISCSI%;*}"
124 if echo "${ISCSI_PORTAL}" | grep -q , ; then
125 ISCSI_SERVER="${ISCSI_PORTAL%,*}"
126 ISCSI_PORT="${ISCSI_PORTAL#*,}"
129 ISCSI_TARGET="${ISCSI#*;}"
130 export ISCSI ISCSI_PORTAL ISCSI_TARGET ISCSI_SERVER ISCSI_PORT
134 FROMISO="${ARGUMENT#*=}"
144 INTEGRITY_CHECK="Yes"
145 export INTEGRITY_CHECK
149 STATICIP="${ARGUMENT#ip=}"
151 if [ -z "${STATICIP}" ]
164 live-media=*|bootfrom=*)
165 LIVE_MEDIA="${ARGUMENT#*=}"
169 live-media-encryption=*|encryption=*)
170 LIVE_MEDIA_ENCRYPTION="${ARGUMENT#*=}"
171 export LIVE_MEDIA_ENCRYPTION
175 LIVE_MEDIA_OFFSET="${ARGUMENT#live-media-offset=}"
176 export LIVE_MEDIA_OFFSET
180 LIVE_MEDIA_PATH="${ARGUMENT#live-media-path=}"
181 export LIVE_MEDIA_PATH
184 live-media-timeout=*)
185 LIVE_MEDIA_TIMEOUT="${ARGUMENT#live-media-timeout=}"
186 export LIVE_MEDIA_TIMEOUT
190 MODULE="${ARGUMENT#module=}"
195 NETBOOT="${ARGUMENT#netboot=}"
200 NFSOPTS="${ARGUMENT#nfsopts=}"
205 NFS_COW="${ARGUMENT#nfscow=}"
210 NOACCESSIBILITY="Yes"
211 export NOACCESSIBILITY
240 PERSISTENT="${ARGUMENT#persistent=}"
241 if [ -z "${PERSISTENT}" ]
249 PERSISTENT_PATH="${ARGUMENT#persistent-path=}"
250 export PERSISTENT_PATH
253 persistent-subtext=*)
254 root_persistence="${root_persistence}-${ARGUMENT#persistent-subtext=}"
255 home_persistence="${home_persistence}-${ARGUMENT#persistent-subtext=}"
256 root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
257 home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistent-subtext=}"
266 QUICKUSBMODULES="Yes"
267 export QUICKUSBMODULES
270 preseed/file=*|file=*)
271 LOCATIONS="${ARGUMENT#*=} ${LOCATIONS}"
281 question="${ARGUMENT%%=*}"
282 value="${ARGUMENT#*=}"
283 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
298 TODISK="${ARGUMENT#todisk=}"
309 MODULETORAM="${ARGUMENT#toram=}"
310 export TORAM MODULETORAM
324 SKIP_UNION_MOUNTS="Yes"
325 export SKIP_UNION_MOUNTS
329 ROOT="${ARGUMENT#root=}"
334 UNIONTYPE="${ARGUMENT#union=}"
340 # sort of compatibility with netboot.h from linux docs
341 if [ -z "${NETBOOT}" ]
343 if [ "${ROOT}" = "/dev/nfs" ]
347 elif [ "${ROOT}" = "/dev/cifs" ]
354 if [ -z "${MODULE}" ]
360 if [ -z "${UNIONTYPE}" ]
371 if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
373 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs dir jffs2
375 if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
387 if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
393 uuid="$(cat /conf/uuid.conf)"
395 for try_uuid_file in "${path}/.disk/live-uuid"*
397 [ -e "${try_uuid_file}" ] || continue
399 try_uuid="$(cat "${try_uuid_file}")"
401 if [ "${uuid}" = "${try_uuid}" ]
410 get_backing_device ()
413 *.squashfs|*.ext2|*.ext3|*.ext4|*.jffs2)
414 echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
422 panic "Unrecognized live filesystem: ${1}"
427 match_files_in_dir ()
429 # Does any files match pattern ${1} ?
432 if [ "$(echo ${pattern})" != "${pattern}" ]
440 mount_images_in_directory ()
447 if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
448 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
449 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
450 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext4" ||
451 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
452 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
454 [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
455 setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
457 panic "No supported filesystem images found at /${LIVE_MEDIA_PATH}."
463 sysfs_path="${1#/sys}"
465 if /lib/udev/path_id "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-|platform-sata_mv|platform-orion-ehci|platform-mmc|platform-mxsdhci|)"
468 elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
471 elif echo ${sysfs_path} | grep -q "^/block/dm-"
474 elif echo ${sysfs_path} | grep -q "^/block/mtdblock"
486 copyto="${copyfrom}_swap"
488 if [ -z "${MODULETORAM}" ]
490 size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "used")
492 MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
494 if [ -f "${MODULETORAMFILE}" ]
496 size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
498 log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
503 if [ "${copytodev}" = "ram" ]
506 freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
507 mount_options="-o size=${size}k"
512 # it should be a writable block device
513 if [ -b "${copytodev}" ]
517 fstype=$(get_fstype "${dev}")
518 freespace=$(fs_size "${dev}")
520 log_warning_msg "${copytodev} is not a block device."
525 if [ "${freespace}" -lt "${size}" ]
527 log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
531 # begin copying (or uncompressing)
533 log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
534 mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
536 if [ "${extension}" = "tgz" ]
539 tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
540 rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
541 mount -r -o move "${copyto}" "${rootmnt}"
544 if [ -n "${MODULETORAMFILE}" ]
548 echo " * Copying $MODULETORAMFILE to RAM" 1>/dev/console
549 rsync -a --progress ${MODULETORAMFILE} ${copyto} 1>/dev/console # copy only the filesystem module
551 cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
556 echo " * Copying whole medium to RAM" 1>/dev/console
557 rsync -a --progress ${copyfrom}/* ${copyto} 1>/dev/console # "cp -a" from busybox also copies hidden files
559 mkdir -p ${copyto}/${LIVE_MEDIA_PATH}
560 cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/* ${copyto}/${LIVE_MEDIA_PATH}
561 if [ -e ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ]
563 cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ${copyto}
569 mount -r -o move ${copyto} ${copyfrom}
578 modprobe -q af_packet # For DHCP
583 if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \
584 [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
587 # if ethdevice was not specified on the kernel command line
588 # make sure we try to get a working network configuration
589 # for *every* present network device (except for loopback of course)
590 if [ -z "$ETHDEVICE" ] ; then
591 echo "If you want to boot from a specific device use bootoption ethdevice=..."
592 for device in /sys/class/net/*; do
594 if [ "$dev" != "lo" ] ; then
595 ETHDEVICE="$ETHDEVICE $dev"
600 # split args of ethdevice=eth0,eth1 into "eth0 eth1"
601 for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
602 devlist="$devlist $device"
605 [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
606 echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
608 # this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
609 # an endless loop; iff execution fails give it two further tries, that's
610 # why we use '$devlist $devlist $devlist' for the other for loop
611 for dev in $devlist $devlist $devlist ; do
612 echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
613 ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config &
615 sleep "$ETHDEV_TIMEOUT" ; sleep 1
616 if [ -r /proc/"$jobid"/status ] ; then
617 echo "Killing job $jobid for device $dev as ipconfig ran into recursion..."
621 # if configuration of device worked we should have an assigned
622 # IP address, iff so let's use the according as $DEVICE for later usage
623 # simple and primitive approach which seems to work fine
624 if ifconfig $dev | grep -q 'inet.*addr:' ; then
631 ipconfig ${DEVICE} | tee /netboot.config
634 # source relevant ipconfig output
635 OLDHOSTNAME=${HOSTNAME}
636 . /tmp/net-${DEVICE}.conf
637 [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
640 if [ -n "${DEVICE}" ]
642 HWADDR="$(cat /sys/class/net/${DEVICE}/address)"
645 if [ ! -e "/etc/resolv.conf" ]
647 echo "Creating /etc/resolv.conf"
649 if [ -n "${DNSDOMAIN}" ]
651 echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
652 echo "search ${DNSDOMAIN}" > /etc/resolv.conf
655 for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
657 echo "nameserver $i" >> /etc/resolv.conf
661 # Check if we have a network device at all
662 if ! ls /sys/class/net/"$DEVICE" > /dev/null 2>&1 && \
663 ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
664 ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
665 ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
666 ! ls /sys/class/net/ra0 > /dev/null 2>&1
668 panic "No supported network device found, maybe a non-mainline driver is required."
676 if [ "${NFSROOT}" = "auto" ]
678 NFSROOT=${ROOTSERVER}:${ROOTPATH}
683 if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
689 if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
691 NFSROOT=${ROOTSERVER}:${NFSROOT}
694 log_begin_msg "Trying netboot from ${NFSROOT}"
696 if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
716 [ "${DEBUG}" == "Yes" ] && debugopt="-d 8"
717 #FIXME this name is supposed to be unique - some date + ifconfig hash?
718 ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
719 export ISCSI_INITIATORNAME
720 if [ -n "${ISCSI_SERVER}" ] ; then
721 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
723 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
727 panic "Failed to log into iscsi target"
729 local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
730 /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
735 while [ -z "${devices}" -a $i -lt 60 ]
738 devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
739 /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
745 if check_dev "null" "/dev/$dev"
752 panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
754 panic "Failed to locate iSCSI host in /sys"
762 for webfile in HTTPFS FTPFS FETCH
764 local url="$(eval echo \"\$\{${webfile}\}\")"
765 local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
769 case "${extension}" in
770 iso|squashfs|tgz|tar)
771 if [ "${extension}" = "iso" ]
773 mkdir -p "${alt_mountpoint}"
774 dest="${alt_mountpoint}"
776 local dest="${mountpoint}/${LIVE_MEDIA_PATH}"
777 mount -t ramfs ram "${mountpoint}"
780 if [ "${webfile}" = "FETCH" ]
784 ip="$(dirname $url | sed -e 's|tftp://||g' -e 's|/.*$||g')"
785 rfile="$(echo $url | sed -e "s|tftp://$ip||g")"
786 lfile="$(basename $url)"
787 log_begin_msg "Trying tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip"
788 tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip
792 log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
793 wget "${url}" -O "${dest}/$(basename ${url})"
797 log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
798 if [ "${webfile}" = "FTPFS" ]
800 FUSE_MOUNT="curlftpfs"
801 url="$(dirname ${url})"
806 $FUSE_MOUNT "${url}" "${dest}"
807 ROOT_PID="$(minips h -C "$FUSE_MOUNT" | { read x y ; echo "$x" ; } )"
809 [ ${?} -eq 0 ] && rc=0
810 [ "${extension}" = "tgz" ] && live_dest="ram"
811 if [ "${extension}" = "iso" ]
813 isoloop=$(setup_loop "${dest}/$(basename "${url}")" "loop" "/sys/block/loop*" "" '')
814 mount -t iso9660 "${isoloop}" "${mountpoint}"
821 log_begin_msg "Unrecognized archive extension for ${url}"
829 if [ -d "${alt_mountpoint}" ]
831 umount "${alt_mountpoint}"
832 rmdir "${alt_mountpoint}"
834 umount "${mountpoint}"
835 elif [ "${webfile}" != "FETCH" ] ; then
849 if [ -z "${NFSOPTS}" ]
854 log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
856 # FIXME: This while loop is an ugly HACK round an nfs bug
858 while [ "$i" -lt 60 ]
860 nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
872 if [ -x "/sbin/mount.cifs" ]
874 if [ -z "${NFSOPTS}" ]
876 CIFSOPTS="-ouser=root,password="
878 CIFSOPTS="${NFSOPTS}"
881 log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
884 if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
898 size=$(fs_size "${fromdev}" "" "used")
900 if [ -b "${fromdev}" ]
902 log_success_msg "Copying snapshot ${fromdev} to ${todir}..."
905 if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
907 todev=$(awk -v pat="$(base_path ${todir})" '$2 == pat { print $1 }' /proc/mounts)
908 freespace=$(df -k | awk '/'${todev}'/{print $4}')
910 freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
913 tomount="/mnt/tmpsnap"
915 if [ ! -d "${tomount}" ]
917 mkdir -p "${tomount}"
920 fstype=$(get_fstype "${fromdev}")
922 if [ -n "${fstype}" ]
925 mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
926 cp -a "${tomount}"/* ${todir}
929 log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
934 if echo ${fromdev} | grep -qs loop
936 losetup -d "${fromdev}"
941 log_warning_msg "Unable to find the snapshot ${snap_type} medium"
948 # Look for ${snap_label}.* in block devices
950 black_listed_devices="${2}"
952 if [ "${PERSISTENT}" != "nofiles" ]
954 # search for image files
955 snapdata=$(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" "${black_listed_devices}")
958 if [ -z "${snapdata}" ]
960 snapdata=$(find_cow_device "${snap_label}" "${black_listed_devices}")
967 # copy the contents of previously found snapshot to ${snap_mount}
968 # and remember the device and filename for resync on exit in live-boot.init
975 if [ -z "${snap_relpath}" ]
977 # root snapshot, default usage
980 # relative snapshot (actually used just for "/home" snapshots)
981 snap_mount="${2}${snap_relpath}"
984 if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
986 log_success_msg "found snapshot: ${snapdata}"
987 snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
988 snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
989 snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
991 if ! try_mount "${snapdev}" "${snapback}" "ro"
998 if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|ext4\|jffs2\)'
1000 # squashfs, jffs2 or ext2/ext3/ext4 snapshot
1001 dev=$(get_backing_device "${snapback}/${snapfile}")
1003 do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1008 # Unfortunately klibc's cpio is incompatible with the
1009 # rest of the world; everything else requires -u -d,
1010 # while klibc doesn't implement them. Try to detect
1011 # whether it's in use.
1012 cpiopath="$(which cpio)" || true
1013 if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath"
1017 cpioargs='--unconditional --make-directories'
1020 if [ -s "${snapback}/${snapfile}" ]
1023 cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null
1027 log_warning_msg "${snapback}/${snapfile} is empty, adding it for sync on reboot."
1031 if [ "${RES}" != "0" ]
1033 log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
1037 umount "${snapback}" || log_warning_msg "failure to \"umount ${snapback}\""
1039 if [ "${RES}" != "0" ]
1041 log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
1044 elif [ -b "${snapdata}" ]
1046 # Try to find if it could be a snapshot partition
1048 log_success_msg "found snapshot ${snap_type} device on ${dev}"
1049 if echo "${dev}" | grep -qs loop
1051 # strange things happens, user confused?
1052 snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
1053 snapfile=$(basename ${snaploop})
1054 snapdev=$(awk -v pat="$( dirname ${snaploop})" '$2 == pat { print $1 }' /proc/mounts)
1059 if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1061 log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)"
1064 if [ -n "${snapfile}" ]
1066 # it was a loop device, user confused
1071 log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)"
1075 echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
1081 image_directory="${1}"
1083 addimage_directory="${3}"
1085 case ${UNIONTYPE} in
1087 modprobe -q -b ${UNIONTYPE}
1089 if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ]
1091 echo "${UNIONTYPE} not available, falling back to unionfs-fuse."
1092 echo "This might be really slow."
1094 UNIONTYPE="unionfs-fuse"
1099 if [ "${UNIONTYPE}" = unionfs-fuse ]
1104 # run-init can't deal with images in a subdir, but we're going to
1105 # move all of these away before it runs anyway. No, we're not,
1106 # put them in / since move-mounting them into / breaks mono and
1111 # Let's just mount the read-only file systems first
1115 if [ "${UNIONTYPE}" = "aufs" ]
1118 noxino_opt="noxino,"
1119 elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
1126 if [ -z "${PLAIN_ROOT}" ]
1128 # Read image names from ${MODULE}.module if it exists
1129 if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
1131 for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
1133 image_string="${image_string} ${image_directory}/${IMAGE}"
1135 elif [ -e "${image_directory}/${MODULE}.module" ]
1137 for IMAGE in $(cat ${image_directory}/${MODULE}.module)
1139 image_string="${image_string} ${image_directory}/${IMAGE}"
1142 # ${MODULE}.module does not exist, create a list of images
1143 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1145 for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
1147 if [ -e "${IMAGE}" ]
1149 image_string="${image_string} ${IMAGE}"
1154 if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
1156 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1158 for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
1160 if [ -e "${IMAGE}" ]
1162 image_string="${image_string} ${IMAGE}"
1169 image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
1172 [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
1176 for image in ${image_string}
1178 imagename=$(basename "${image}")
1180 export image devname
1181 maybe_break live-realpremount
1182 log_begin_msg "Running /scripts/live-realpremount"
1183 run_scripts /scripts/live-realpremount
1186 if [ -d "${image}" ]
1188 # it is a plain directory: do nothing
1189 rofsstring="${image}=${roopt}:${rofsstring}"
1190 rofslist="${image} ${rofslist}"
1191 elif [ -f "${image}" ]
1193 if losetup --help 2>&1 | grep -q -- "-r\b"
1195 backdev=$(get_backing_device "${image}" "-r")
1197 backdev=$(get_backing_device "${image}")
1199 fstype=$(get_fstype "${backdev}")
1201 if [ "${fstype}" = "unknown" ]
1203 panic "Unknown file system type on ${backdev} (${image})"
1206 if [ -z "${fstype}" ]
1208 fstype="${imagename##*.}"
1209 log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
1212 if [ "${UNIONTYPE}" != "unionmount" ]
1214 mpoint="${croot}/${imagename}"
1215 rofsstring="${mpoint}=${roopt}:${rofsstring}" && rofslist="${mpoint} ${rofslist}"
1219 mkdir -p "${mpoint}"
1220 log_begin_msg "Mounting \"${image}\" on \"${mpoint}\" via \"${backdev}\""
1221 mount -t "${fstype}" -o ro,noatime "${backdev}" "${mpoint}" || panic "Can not mount ${backdev} (${image}) on ${mpoint}"
1226 # we have a plain root system
1227 mkdir -p "${croot}/filesystem"
1228 log_begin_msg "Mounting \"${image_directory}\" on \"${croot}/filesystem\""
1229 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}"
1231 mount -o bind ${croot}/filesystem $mountpoint
1235 rofsstring=${rofsstring%:}
1239 # Looking for "${root_persistence}" device or file
1240 if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1242 if [ -z "${QUICKUSBMODULES}" ]
1245 num_block=$(ls -l /sys/block | wc -l)
1246 for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
1248 modprobe -q -b ${module}
1254 # For some reason, udevsettle does not block in this scenario,
1255 # so we sleep for a little while.
1257 # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
1258 for timeout in 5 4 3 2 1
1262 if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
1269 # search for label and files (this could be hugely optimized)
1270 cowprobe=$(find_cow_device "${root_persistence}")
1271 if [ -b "${cowprobe}" ]
1273 # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots
1274 # makes sense to have both persistence for /cow and /home mounted, maybe also with
1275 # snapshots to be sure to really store some e.g key config files,
1276 # but not on the same media
1277 blacklistdev="${cowprobe}"
1278 PERSISTENCE_IS_ON="1"
1279 export PERSISTENCE_IS_ON
1281 # homecow just mount something on /home, this should be generalized some way
1282 homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}")
1283 if [ -b "${homecow}" ]
1285 PERSISTENCE_IS_ON="1"
1286 export PERSISTENCE_IS_ON
1288 root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}")
1289 # This second type should be removed when snapshot will get smarter,
1290 # hence when "/etc/live-snapshot*list" will be supported also by
1291 # ext2|ext3|ext4|jffs2 snapshot types.
1292 home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}")
1294 if [ -b "${cowprobe}" ]
1296 cowdevice=${cowprobe}
1297 cow_fstype=$(get_fstype "${cowprobe}")
1298 cow_mountopt="rw,noatime"
1300 if [ "${FORCEPERSISTENTFSCK}" = "Yes" ]
1302 fsck -y ${cowdevice}
1305 log_warning_msg "Unable to find the persistent medium"
1308 cow_mountopt="rw,noatime,mode=755"
1310 elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
1312 # check if there are any nfs options
1313 if echo ${NFS_COW}|grep -q ','
1315 nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
1316 nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
1318 nfs_cow_opts="-o nolock"
1324 cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
1327 panic "unable to determine mac address"
1332 cow_mountopt="rw,noatime,mode=755"
1335 if [ "${UNIONTYPE}" != "unionmount" ]
1338 if [ "${cow_fstype}" = "nfs" ]
1341 "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
1342 nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
1343 panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
1345 mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
1346 panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
1350 rofscount=$(echo ${rofslist} |wc -w)
1352 if [ -n "${EXPOSED_ROOT}" ]
1354 if [ ${rofscount} -ne 1 ]
1356 panic "only one RO file system supported with exposedroot: ${rofslist}"
1358 exposedrootfs=${rofslist%% }
1360 mount --bind ${exposedrootfs} ${rootmnt} || \
1361 panic "bind mount of ${exposedrootfs} failed"
1363 if [ -z "${SKIP_UNION_MOUNTS}" ]
1365 cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool /home /var/lib/live'
1370 for dir in ${cow_dirs}; do
1373 case "${UNIONTYPE}" in
1375 (ulimit -n 16384; unionfs-fuse -o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid /cow=RW:${exposedrootfs}${dir} "${rootmnt}${dir}" || panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option cow,noinitgroups,default_permissions,allow_other,use_ino,suid=/cow=RW:${exposedrootfs}${dir}")
1376 mkdir -p /dev/.initramfs/varrun
1377 pidof unionfs-fuse >> /dev/.initramfs/varrun/sendsigs.omit || true
1381 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}${dir}=ro"
1386 case "${UNIONTYPE}" in
1388 (ulimit -n 16384; unionfs-fuse -o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid /cow=RW:${rofsstring} "${rootmnt}" || panic "mount ${UNIONTYPE} on ${rootmnt} failed with option cow,noinitgroups,default_permissions,allow_other,use_ino,suid=/cow:RW:${rofsstring}")
1389 mkdir -p /dev/.initramfs/varrun
1390 pidof unionfs-fuse >> /dev/.initramfs/varrun/sendsigs.omit || true
1394 mount_full -t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice} "${rootmnt}" || panic "${UNIONTYPE} ${cowdevice} on ${rootmnt} failed with option noatime,union,${cow_mountopt}"
1398 mount -t ${UNIONTYPE} -o noatime,${noxino_opt}dirs=/cow=rw:${rofsstring} ${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on ${rootmnt} failed with option noatime,${noxino_opt}dirs=/cow=rw:${rofsstring}"
1403 # Correct the permissions of /:
1404 chmod 0755 "${rootmnt}"
1406 # tmpfs file systems
1408 mkdir -p "${rootmnt}/live"
1409 mount -t tmpfs tmpfs ${rootmnt}/live
1411 # Adding other custom mounts
1412 if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1414 # directly mount /home
1415 # FIXME: add a custom mounts configurable system
1417 if [ -b "${homecow}" ]
1419 mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
1420 export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
1422 log_warning_msg "Unable to find the persistent home medium"
1425 # Look for other snapshots to copy in
1426 try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
1427 # This second type should be removed when snapshot grow smarter
1428 try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
1431 if [ -n "${SHOWMOUNTS}" ]
1433 for d in ${rofslist}
1435 mkdir -p "${rootmnt}/live/${d##*/}"
1439 # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1443 case "${UNIONTYPE}" in
1445 mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1449 mount -o move "${d}" "${rootmnt}/live/${d##*/}"
1457 # shows cow fs on /cow for use by live-snapshot
1458 mkdir -p "${rootmnt}/live/cow"
1459 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 ${rootmnt}/live/cow"
1466 skip_uuid_check="${3}"
1468 # support for fromiso=.../isofrom=....
1469 if [ -n "$FROMISO" ]
1471 ISO_DEVICE=$(dirname $FROMISO)
1472 if ! [ -b $ISO_DEVICE ]
1474 # to support unusual device names like /dev/cciss/c0d0p1
1475 # as well we have to identify the block device name, let's
1476 # do that for up to 15 levels
1478 while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
1480 ISO_DEVICE=$(dirname ${ISO_DEVICE})
1481 [ -b "$ISO_DEVICE" ] && break
1486 if [ "$ISO_DEVICE" = "/" ]
1488 echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live.log
1491 mount -t auto "$ISO_DEVICE" /isofrom
1492 ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
1493 loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
1494 devname="${loopdevname}"
1498 if [ -z "${devname}" ]
1500 devname=$(sys2dev "${sysdev}")
1503 if [ -d "${devname}" ]
1505 mount -o bind "${devname}" $mountpoint || continue
1507 if is_live_path $mountpoint
1515 [ -e "$devname" ] || continue
1517 if [ -n "${LIVE_MEDIA_OFFSET}" ]
1519 loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
1520 devname="${loopdevname}"
1523 fstype=$(get_fstype "${devname}")
1525 if is_supported_fs ${fstype}
1527 devuid=$(blkid -o value -s UUID "$devname")
1528 [ -n "$devuid" ] && grep -qs "\<$devuid\>" $tried && continue
1529 mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
1530 [ -n "$devuid" ] && echo "$devuid" >> $tried
1532 if is_live_path ${mountpoint} && \
1533 ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
1538 umount ${mountpoint}
1542 if [ -n "${LIVE_MEDIA_OFFSET}" ]
1544 losetup -d "${loopdevname}"
1554 # don't start autodetection before timeout has expired
1555 if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
1557 if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
1563 # first look at the one specified in the command line
1564 case "${LIVE_MEDIA}" in
1566 for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
1568 if [ "$(cat ${sysblock}/removable)" = "1" ]
1570 if readlink ${sysblock} | grep -q usb ||
1571 readlink ${sysblock}/device | grep -q usb # linux < 2.6.29
1573 for dev in $(subdevices "${sysblock}")
1575 if check_dev "${dev}"
1587 for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)")
1589 if [ "$(cat ${sysblock}/removable)" = "1" ]
1591 for dev in $(subdevices "${sysblock}")
1593 if check_dev "${dev}"
1604 if [ ! -z "${LIVE_MEDIA}" ]
1606 if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
1614 # or do the scan of block devices
1615 # prefer removable devices over non-removable devices, so scan them first
1616 for sysblock in $(echo /sys/block/* | tr ' ' '\n' | egrep -v "/(loop|ram|dm-|fd)")
1618 if [ "$(cat ${sysblock}/removable)" = "1" ]
1620 removable_devices_to_scan="$removable_devices_to_scan $sysblock"
1622 nonremovable_devices_to_scan="$nonremovable_devices_to_scan $sysblock"
1625 devices_to_scan="$removable_devices_to_scan $nonremovable_devices_to_scan"
1627 for sysblock in $devices_to_scan
1629 devname=$(sys2dev "${sysblock}")
1630 [ -e "$devname" ] || continue
1631 fstype=$(get_fstype "${devname}")
1633 if /lib/udev/cdrom_id ${devname} > /dev/null
1635 if check_dev "null" "${devname}"
1639 elif is_nice_device "${sysblock}"
1641 for dev in $(subdevices "${sysblock}")
1643 if check_dev "${dev}"
1648 elif [ "${fstype}" = "squashfs" -o \
1649 "${fstype}" = "btrfs" -o \
1650 "${fstype}" = "ext2" -o \
1651 "${fstype}" = "ext3" -o \
1652 "${fstype}" = "ext4" -o \
1653 "${fstype}" = "jffs2" ]
1655 # This is an ugly hack situation, the block device has
1656 # an image directly on it. It's hopefully
1657 # live-boot, so take it and run with it.
1658 ln -s "${devname}" "${devname}.${fstype}"
1659 echo "${devname}.${fstype}"
1669 media_mountpoint="${1}"
1671 log_begin_msg "Checking media integrity"
1673 cd ${media_mountpoint}
1674 /bin/md5sum -c md5sum.txt < /dev/tty8 > /dev/tty8
1679 if [ "${RC}" -eq 0 ]
1681 log_success_msg "Everything ok, will reboot in 10 seconds."
1684 umount ${media_mountpoint}
1686 echo u > /proc/sysrq-trigger
1687 echo b > /proc/sysrq-trigger
1689 panic "Not ok, a media defect is likely, switch to VT8 for details."
1695 if [ -x /scripts/local-top/cryptroot ]; then
1696 /scripts/local-top/cryptroot
1703 tail -f live.log >&7 &
1706 # Ensure 'panic' function is overridden
1707 . /scripts/live-functions
1711 maybe_break live-premount
1712 log_begin_msg "Running /scripts/live-premount"
1713 run_scripts /scripts/live-premount
1716 # Needed here too because some things (*cough* udev *cough*)
1717 # changes the timeout
1719 if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
1723 livefs_root="${mountpoint}"
1725 panic "Unable to find a live file system on the network"
1728 if [ -n "${ISCSI_PORTAL}" ]
1730 do_iscsi && livefs_root="${mountpoint}"
1731 elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
1733 # Do a local boot from hd
1736 if [ -x /usr/bin/memdiskfind ]
1738 MEMDISK=$(/usr/bin/memdiskfind)
1742 # We found a memdisk, set up phram
1743 modprobe phram phram=memdisk,${MEMDISK}
1745 # Load mtdblock, the memdisk will be /dev/mtdblock0
1750 # Scan local devices for the image
1752 while [ "$i" -lt 60 ]
1754 livefs_root=$(find_livefs ${i})
1756 if [ -n "${livefs_root}" ]
1767 if [ -z "${livefs_root}" ]
1769 panic "Unable to find a medium containing a live file system"
1772 if [ "${INTEGRITY_CHECK}" ]
1774 integrity_check "${livefs_root}"
1780 elif [ "${TODISK}" ]
1782 live_dest="${TODISK}"
1785 if [ "${live_dest}" ]
1787 log_begin_msg "Copying live media to ${live_dest}"
1788 copy_live_to "${livefs_root}" "${live_dest}"
1792 # if we do not unmount the ISO we can't run "fsck /dev/ice" later on
1793 # because the mountpoint is left behind in /proc/mounts, so let's get
1794 # rid of it when running from RAM
1795 if [ -n "$FROMISO" ] && [ "${TORAM}" ]
1797 losetup -d /dev/loop0
1798 grep -q /isofrom /proc/mounts && umount /isofrom
1801 if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
1803 setup_unionfs "${livefs_root}" "${rootmnt}"
1806 mac="$(echo ${mac} | sed 's/-//g')"
1807 mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
1811 if [ -n "${ROOT_PID}" ] ; then
1812 echo "${ROOT_PID}" > "${rootmnt}"/live/root.pid
1817 # unionfs-fuse needs /dev to be bind-mounted for the duration of
1818 # live-bottom; udev's init script will take care of things after that
1819 if [ "${UNIONTYPE}" = unionfs-fuse ]
1821 mount -n -o bind /dev "${rootmnt}/dev"
1824 # Move to the new root filesystem so that programs there can get at it.
1825 if [ ! -d /root/live/image ]
1827 mkdir -p /root/live/image
1828 mount --move /live/image /root/live/image
1831 # aufs2 in kernel versions around 2.6.33 has a regression:
1832 # directories can't be accessed when read for the first the time,
1833 # causing a failure for example when accessing /var/lib/fai
1834 # when booting FAI, this simple workaround solves it
1835 ls /root/* >/dev/null 2>&1
1837 # copy snapshot configuration if exists
1838 if [ -f snapshot.conf ]
1840 log_begin_msg "Copying snapshot.conf to ${rootmnt}/etc/live/boot.d"
1841 if [ ! -d "${rootmnt}/etc/live/boot.d" ]
1843 mkdir -p "${rootmnt}/etc/live/boot.d"
1845 cp snapshot.conf "${rootmnt}/etc/live/boot.d/"
1849 maybe_break live-bottom
1850 log_begin_msg "Running /scripts/live-bottom\n"
1852 run_scripts /scripts/live-bottom
1855 if [ "${UNIONFS}" = unionfs-fuse ]
1857 umount "${rootmnt}/dev"
1863 [ -w "${rootmnt}/var/log/" ] && cp live.log "${rootmnt}/var/log/" 2>/dev/null