scripts/live

   1 #!/bin/sh
   2
   3 # set -e
   4
   5 export PATH="/root/usr/bin:/root/usr/sbin:/root/bin:/root/sbin:/usr/bin:/usr/sbin:/bin:/sbin"
   6
   7 echo "/root/lib" >> /etc/ld.so.conf
   8 echo "/root/usr/lib" >> /etc/ld.so.conf
   9
  10 mountpoint="/live/image"
  11 alt_mountpoint="/media"
  12 LIVE_MEDIA_PATH="live"
  13
  14 root_persistence="live-rw"
  15 home_persistence="home-rw"
  16 root_snapshot_label="live-sn"
  17 home_snapshot_label="home-sn"
  18
  19 USERNAME="user"
  20 USERFULLNAME="Live user"
  21 HOSTNAME="host"
  22
  23 mkdir -p "${mountpoint}"
  24 tried="/tmp/tried"
  25
  26 # Create /etc/mtab for debug purpose and future syncs
  27 if [ ! -d /etc ]
  28 then
  29         mkdir /etc/
  30 fi
  31
  32 if [ ! -f /etc/mtab ]
  33 then
  34         touch /etc/mtab
  35 fi
  36
  37 . /scripts/live-helpers
  38
  39 if [ ! -f /live.vars ]
  40 then
  41         touch /live.vars
  42 fi
  43
  44 Arguments ()
  45 {
  46         PRESEEDS=""
  47         LOCATIONS=""
  48
  49         for ARGUMENT in $(cat /proc/cmdline)
  50         do
  51                 case "${ARGUMENT}" in
  52                         skipconfig)
  53                                 NOACCESSIBILITY="Yes"
  54                                 NOFASTBOOT="Yes"
  55                                 NOFSTAB="Yes"
  56                                 NONETWORKING="Yes"
  57
  58                                 export NOACCESSIBILITY NOFASTBOOT NOFSTAB NONETWORKING
  59                                 ;;
  60
  61                         access=*)
  62                                 ACCESS="${ARGUMENT#access=}"
  63                                 export ACCESS
  64                                 ;;
  65
  66                         console=*)
  67                                 DEFCONSOLE="${ARGUMENT#*=}"
  68                                 export DEFCONSOLE
  69                                 ;;
  70
  71                         BOOTIF=*)
  72                                 BOOTIF="${x#BOOTIF=}"
  73                                 ;;
  74
  75                         debug)
  76                                 DEBUG="Yes"
  77                                 export DEBUG
  78
  79                                 set -x
  80                                 ;;
  81
  82                         dhcp)
  83                                 # Force dhcp even while netbooting
  84                                 # Use for debugging in case somebody works on fixing dhclient
  85                                 DHCP="Force";
  86                                 export DHCP
  87                                 ;;
  88
  89                         nodhcp)
  90                                 unset DHCP
  91                                 ;;
  92
  93                         ethdevice=*)
  94                                 DEVICE="${ARGUMENT#ethdevice=}"
  95                                 ETHDEVICE="${DEVICE}"
  96                                 export DEVICE ETHDEVICE
  97                                 ;;
  98
  99                         ethdevice-timeout=*)
 100                                 ETHDEV_TIMEOUT="${ARGUMENT#ethdevice-timeout=}"
 101                                 export ETHDEV_TIMEOUT
 102                                 ;;
 103
 104                         fetch=*)
 105                                 FETCH="${ARGUMENT#fetch=}"
 106                                 export FETCH
 107                                 ;;
 108
 109                         forcepersistentfsck)
 110                                 FORCEPERSISTENTFSCK="Yes"
 111                                 export FORCEPERSISTENTFSCK
 112                                 ;;
 113
 114                         ftpfs=*)
 115                                 FTPFS="${ARGUMENT#ftpfs=}"
 116                                 export FTPFS
 117                                 ;;
 118
 119                         httpfs=*)
 120                                 HTTPFS="${ARGUMENT#httpfs=}"
 121                                 export HTTPFS
 122                                 ;;
 123
 124                         iscsi=*)
 125                                 ISCSI="${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#*,}"
 131                                 fi
 132                                 #target name
 133                                 ISCSI_TARGET="${ISCSI#*;}"
 134                                 export ISCSI ISCSI_PORTAL ISCSI_TARGET ISCSI_SERVER ISCSI_PORT
 135                                 ;;
 136
 137                         isofrom=*|fromiso=*)
 138                                 FROMISO="${ARGUMENT#*=}"
 139                                 export FROMISO
 140                                 ;;
 141
 142                         ignore_uuid)
 143                                 IGNORE_UUID="Yes"
 144                                 export IGNORE_UUID
 145                                 ;;
 146
 147                         integrity-check)
 148                                 INTEGRITY_CHECK="Yes"
 149                                 export INTEGRITY_CHECK
 150                                 ;;
 151
 152                         ip=*)
 153                                 STATICIP="${ARGUMENT#ip=}"
 154
 155                                 if [ -z "${STATICIP}" ]
 156                                 then
 157                                         STATICIP="frommedia"
 158                                 fi
 159
 160                                 export STATICIP
 161                                 ;;
 162
 163                         live-getty)
 164                                 LIVE_GETTY="1"
 165                                 export LIVE_GETTY
 166                                 ;;
 167
 168                         live-media=*|bootfrom=*)
 169                                 LIVE_MEDIA="${ARGUMENT#*=}"
 170                                 export LIVE_MEDIA
 171                                 ;;
 172
 173                         live-media-encryption=*|encryption=*)
 174                                 LIVE_MEDIA_ENCRYPTION="${ARGUMENT#*=}"
 175                                 export LIVE_MEDIA_ENCRYPTION
 176                                 ;;
 177
 178                         live-media-offset=*)
 179                                 LIVE_MEDIA_OFFSET="${ARGUMENT#live-media-offset=}"
 180                                 export LIVE_MEDIA_OFFSET
 181                                 ;;
 182
 183                         live-media-path=*)
 184                                 LIVE_MEDIA_PATH="${ARGUMENT#live-media-path=}"
 185                                 export LIVE_MEDIA_PATH
 186                                 ;;
 187
 188                         live-media-timeout=*)
 189                                 LIVE_MEDIA_TIMEOUT="${ARGUMENT#live-media-timeout=}"
 190                                 export LIVE_MEDIA_TIMEOUT
 191                                 ;;
 192
 193                         module=*)
 194                                 MODULE="${ARGUMENT#module=}"
 195                                 export MODULE
 196                                 ;;
 197
 198                         netboot=*)
 199                                 NETBOOT="${ARGUMENT#netboot=}"
 200                                 export NETBOOT
 201                                 ;;
 202
 203                         nfsopts=*)
 204                                 NFSOPTS="${ARGUMENT#nfsopts=}"
 205                                 export NFSOPTS
 206                                 ;;
 207
 208                         nfscow=*)
 209                                 NFS_COW="${ARGUMENT#nfscow=}"
 210                                 export NFS_COW
 211                                 ;;
 212
 213                         noaccessibility)
 214                                 NOACCESSIBILITY="Yes"
 215                                 export NOACCESSIBILITY
 216                                 ;;
 217
 218                         nofastboot)
 219                                 NOFASTBOOT="Yes"
 220                                 export NOFASTBOOT
 221                                 ;;
 222
 223                         nofstab)
 224                                 NOFSTAB="Yes"
 225                                 export NOFSTAB
 226                                 ;;
 227
 228                         nonetworking)
 229                                 NONETWORKING="Yes"
 230                                 export NONETWORKING
 231                                 ;;
 232
 233                         ramdisk-size=*)
 234                                 ramdisk_size="${ARGUMENT#ramdisk-size=}"
 235                                 ;;
 236
 237                         swapon)
 238                                 SWAPON="Yes"
 239                                 export SWAPON
 240                                 ;;
 241
 242                         persistent)
 243                                 PERSISTENT="Yes"
 244                                 export PERSISTENT
 245                                 ;;
 246
 247                         persistent=*)
 248                                 PERSISTENT="${ARGUMENT#persistent=}"
 249                                 if [ -z "${PERSISTENT}" ]
 250                                 then
 251                                         PERSISTENT="Yes"
 252                                 fi
 253                                 export PERSISTENT
 254                                 ;;
 255
 256                         persistent-media=*)
 257                                 PERSISTENT_MEDIA="${ARGUMENT#*=}"
 258                                 export PERSISTENT_MEDIA
 259                                 ;;
 260
 261                         persistent-path=*)
 262                                 PERSISTENT_PATH="${ARGUMENT#persistent-path=}"
 263                                 export PERSISTENT_PATH
 264                                 ;;
 265
 266                         persistent-subtext=*)
 267                                 root_persistence="${root_persistence}-${ARGUMENT#persistent-subtext=}"
 268                                 home_persistence="${home_persistence}-${ARGUMENT#persistent-subtext=}"
 269                                 root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
 270                                 home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistent-subtext=}"
 271                                 ;;
 272
 273                         nopersistent)
 274                                 NOPERSISTENT="Yes"
 275                                 export NOPERSISTENT
 276                                 ;;
 277
 278                         noprompt)
 279                                 NOPROMPT="Yes"
 280                                 export NOPROMPT
 281                                 ;;
 282
 283                         noprompt=*)
 284                                 NOPROMPT="${ARGUMENT#noprompt=}"
 285                                 export NOPROMPT
 286                                 ;;
 287
 288                         quickusbmodules)
 289                                 QUICKUSBMODULES="Yes"
 290                                 export QUICKUSBMODULES
 291                                 ;;
 292
 293                         preseed/file=*|file=*)
 294                                 LOCATIONS="${ARGUMENT#*=} ${LOCATIONS}"
 295                                 export LOCATIONS
 296                                 ;;
 297
 298                         nopreseed)
 299                                 NOPRESEED="Yes"
 300                                 export NOPRESEED
 301                                 ;;
 302
 303                         */*=*)
 304                                 question="${ARGUMENT%%=*}"
 305                                 value="${ARGUMENT#*=}"
 306                                 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
 307                                 export PRESEEDS
 308                                 ;;
 309
 310                         showmounts)
 311                                 SHOWMOUNTS="Yes"
 312                                 export SHOWMOUNTS
 313                                 ;;
 314
 315                         silent)
 316                                 SILENT="Yes"
 317                                 export SILENT
 318                                 ;;
 319
 320                         todisk=*)
 321                                 TODISK="${ARGUMENT#todisk=}"
 322                                 export TODISK
 323                                 ;;
 324
 325                         toram)
 326                                 TORAM="Yes"
 327                                 export TORAM
 328                                 ;;
 329
 330                         toram=*)
 331                                 TORAM="Yes"
 332                                 MODULETORAM="${ARGUMENT#toram=}"
 333                                 export TORAM MODULETORAM
 334                                 ;;
 335
 336                         exposedroot)
 337                                 EXPOSED_ROOT="Yes"
 338                                 export EXPOSED_ROOT
 339                                 ;;
 340
 341                         plainroot)
 342                                 PLAIN_ROOT="Yes"
 343                                 export PLAIN_ROOT
 344                                 ;;
 345
 346                         skipunion)
 347                                 SKIP_UNION_MOUNTS="Yes"
 348                                 export SKIP_UNION_MOUNTS
 349                                 ;;
 350
 351                         root=*)
 352                                 ROOT="${ARGUMENT#root=}"
 353                                 export ROOT
 354                                 ;;
 355
 356                         union=*)
 357                                 UNIONTYPE="${ARGUMENT#union=}"
 358                                 export UNIONTYPE
 359                                 ;;
 360                 esac
 361         done
 362
 363         # sort of compatibility with netboot.h from linux docs
 364         if [ -z "${NETBOOT}" ]
 365         then
 366                 if [ "${ROOT}" = "/dev/nfs" ]
 367                 then
 368                         NETBOOT="nfs"
 369                         export NETBOOT
 370                 elif [ "${ROOT}" = "/dev/cifs" ]
 371                 then
 372                         NETBOOT="cifs"
 373                         export NETBOOT
 374                 fi
 375         fi
 376
 377         if [ -z "${MODULE}" ]
 378         then
 379                 MODULE="filesystem"
 380                 export MODULE
 381         fi
 382
 383         if [ -z "${UNIONTYPE}" ]
 384         then
 385                 UNIONTYPE="aufs"
 386                 export UNIONTYPE
 387         fi
 388 }
 389
 390 is_live_path ()
 391 {
 392         DIRECTORY="${1}"
 393
 394         if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
 395         then
 396                 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs dir jffs2
 397                 do
 398                         if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
 399                         then
 400                                 return 0
 401                         fi
 402                 done
 403         fi
 404
 405         return 1
 406 }
 407
 408 matches_uuid ()
 409 {
 410         if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
 411         then
 412                 return 0
 413         fi
 414
 415         path="${1}"
 416         uuid="$(cat /conf/uuid.conf)"
 417
 418         for try_uuid_file in "${path}/.disk/live-uuid"*
 419         do
 420                 [ -e "${try_uuid_file}" ] || continue
 421
 422                 try_uuid="$(cat "${try_uuid_file}")"
 423
 424                 if [ "${uuid}" = "${try_uuid}" ]
 425                 then
 426                         return 0
 427                 fi
 428         done
 429
 430         return 1
 431 }
 432
 433 get_backing_device ()
 434 {
 435         case "${1}" in
 436                 *.squashfs|*.ext2|*.ext3|*.ext4|*.jffs2)
 437                         echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
 438                         ;;
 439
 440                 *.dir)
 441                         echo "directory"
 442                         ;;
 443
 444                 *)
 445                         panic "Unrecognized live filesystem: ${1}"
 446                         ;;
 447         esac
 448 }
 449
 450 match_files_in_dir ()
 451 {
 452         # Does any files match pattern ${1} ?
 453         local pattern="${1}"
 454
 455         if [ "$(echo ${pattern})" != "${pattern}" ]
 456         then
 457                 return 0
 458         fi
 459
 460         return 1
 461 }
 462
 463 mount_images_in_directory ()
 464 {
 465         directory="${1}"
 466         rootmnt="${2}"
 467         mac="${3}"
 468
 469
 470         if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
 471                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
 472                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
 473                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext4" ||
 474                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
 475                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
 476         then
 477                 [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
 478                 setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
 479         else
 480                 panic "No supported filesystem images found at /${LIVE_MEDIA_PATH}."
 481         fi
 482 }
 483
 484 is_nice_device ()
 485 {
 486         sysfs_path="${1#/sys}"
 487
 488         if [ -e /lib/udev/path_id ]
 489         then
 490                 # squeeze
 491                 PATH_ID="/lib/udev/path_id"
 492         else
 493                 # wheezy/sid (udev >= 174)
 494                 PATH_ID="/sbin/udevadm test-builtin path_id"
 495         fi
 496
 497         if "${PATH_ID}" "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-[^-]*-(ide|sas|scsi|usb|virtio)|platform-sata_mv|platform-orion-ehci|platform-mmc|platform-mxsdhci)"
 498         then
 499                 return 0
 500         elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
 501         then
 502                 return 0
 503         elif echo ${sysfs_path} | grep -q "^/block/dm-"
 504         then
 505                 return 0
 506         elif echo ${sysfs_path} | grep -q "^/block/mtdblock"
 507         then
 508                 return 0
 509         fi
 510
 511         return 1
 512 }
 513
 514 copy_live_to ()
 515 {
 516         copyfrom="${1}"
 517         copytodev="${2}"
 518         copyto="${copyfrom}_swap"
 519
 520         if [ -z "${MODULETORAM}" ]
 521         then
 522                 size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "used")
 523         else
 524                 MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
 525
 526                 if [ -f "${MODULETORAMFILE}" ]
 527                 then
 528                         size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
 529                 else
 530                         log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
 531                         return 1
 532                 fi
 533         fi
 534
 535         if [ "${copytodev}" = "ram" ]
 536         then
 537                 # copying to ram:
 538                 freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
 539                 mount_options="-o size=${size}k"
 540                 free_string="memory"
 541                 fstype="tmpfs"
 542                 dev="/dev/shm"
 543         else
 544                 # it should be a writable block device
 545                 if [ -b "${copytodev}" ]
 546                 then
 547                         dev="${copytodev}"
 548                         free_string="space"
 549                         fstype=$(get_fstype "${dev}")
 550                         freespace=$(fs_size "${dev}")
 551                 else
 552                         log_warning_msg "${copytodev} is not a block device."
 553                         return 1
 554                 fi
 555         fi
 556
 557         if [ "${freespace}" -lt "${size}" ]
 558         then
 559                 log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
 560                 return 1
 561         fi
 562
 563         # Custom ramdisk size
 564         if [ -z "${mount_options}" ] && [ -n "${ramdisk_size}" ]
 565         then
 566                 # FIXME: should check for wrong values
 567                 mount_options="-o size=${ramdisk_size}"
 568         fi
 569
 570         # begin copying (or uncompressing)
 571         mkdir "${copyto}"
 572         log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
 573         mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 574
 575         if [ "${extension}" = "tgz" ]
 576         then
 577                 cd "${copyto}"
 578                 tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 579                 rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 580                 mount -r -o move "${copyto}" "${rootmnt}"
 581                 cd "${OLDPWD}"
 582         else
 583                 if [ -n "${MODULETORAMFILE}" ]
 584                 then
 585                         if [ -x /bin/rsync ]
 586                         then
 587                                 echo " * Copying $MODULETORAMFILE to RAM" 1>/dev/console
 588                                 rsync -a --progress ${MODULETORAMFILE} ${copyto} 1>/dev/console # copy only the filesystem module
 589                         else
 590                                 cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
 591                         fi
 592                 else
 593                         if [ -x /bin/rsync ]
 594                         then
 595                                 echo " * Copying whole medium to RAM" 1>/dev/console
 596                                 rsync -a --progress ${copyfrom}/* ${copyto} 1>/dev/console  # "cp -a" from busybox also copies hidden files
 597                         else
 598                                 mkdir -p ${copyto}/${LIVE_MEDIA_PATH}
 599                                 cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/* ${copyto}/${LIVE_MEDIA_PATH}
 600                                 if [ -e ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ]
 601                                 then
 602                                         cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ${copyto}
 603                                 fi
 604                         fi
 605                 fi
 606
 607                 umount ${copyfrom}
 608                 mount -r -o move ${copyto} ${copyfrom}
 609         fi
 610
 611         rmdir ${copyto}
 612         return 0
 613 }
 614
 615 do_netsetup ()
 616 {
 617         modprobe -q af_packet # For DHCP
 618
 619         udevadm trigger
 620         udevadm settle
 621
 622         [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
 623         echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
 624
 625         if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \
 626            [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
 627         then
 628
 629
 630         # support for Syslinux IPAPPEND parameter
 631         # it sets the BOOTIF variable on the kernel parameter
 632
 633         if [ -n "${BOOTIF}" ]
 634         then
 635                 # pxelinux sets BOOTIF to a value based on the mac address of the
 636                 # network card used to PXE boot, so use this value for DEVICE rather
 637                 # than a hard-coded device name from initramfs.conf. this facilitates
 638                 # network booting when machines may have multiple network cards.
 639                 # pxelinux sets BOOTIF to 01-$mac_address
 640
 641                 # strip off the leading "01-", which isn't part of the mac
 642                 # address
 643                 temp_mac=${BOOTIF#*-}
 644
 645                 # convert to typical mac address format by replacing "-" with ":"
 646                 bootif_mac=""
 647                 IFS='-'
 648                 for x in $temp_mac
 649                 do
 650                         if [ -z "$bootif_mac" ]
 651                         then
 652                                 bootif_mac="$x"
 653                         else
 654                                 bootif_mac="$bootif_mac:$x"
 655                         fi
 656                 done
 657                 unset IFS
 658
 659                 # look for devices with matching mac address, and set DEVICE to
 660                 # appropriate value if match is found.
 661
 662                 for device in /sys/class/net/*
 663                 do
 664                         if [ -f "$device/address" ]
 665                         then
 666                                 current_mac=$(cat "$device/address")
 667
 668                                 if [ "$bootif_mac" = "$current_mac" ]
 669                                 then
 670                                         DEVICE=${device##*/}
 671                                         break
 672                                 fi
 673                         fi
 674                 done
 675         fi
 676
 677         # if ethdevice was not specified on the kernel command line
 678         # make sure we try to get a working network configuration
 679         # for *every* present network device (except for loopback of course)
 680         if [ -z "$ETHDEVICE" ] ; then
 681                 echo "If you want to boot from a specific device use bootoption ethdevice=..."
 682                 for device in /sys/class/net/*; do
 683                         dev=${device##*/} ;
 684                         if [ "$dev" != "lo" ] ; then
 685                                 ETHDEVICE="$ETHDEVICE $dev"
 686                         fi
 687                 done
 688         fi
 689
 690         # split args of ethdevice=eth0,eth1 into "eth0 eth1"
 691         for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
 692                 devlist="$devlist $device"
 693         done
 694
 695         # this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
 696         # an endless loop; iff execution fails give it two further tries, that's
 697         # why we use '$devlist $devlist $devlist' for the other for loop
 698         for dev in $devlist $devlist $devlist ; do
 699                 echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
 700                 ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config &
 701                 jobid=$!
 702                 sleep "$ETHDEV_TIMEOUT" ; sleep 1
 703                 if [ -r /proc/"$jobid"/status ] ; then
 704                         echo "Killing job $jobid for device $dev as ipconfig ran into recursion..."
 705                         kill -9 $jobid
 706                 fi
 707
 708                 # if configuration of device worked we should have an assigned
 709                 # IP address, iff so let's use the according as $DEVICE for later usage
 710                 # simple and primitive approach which seems to work fine
 711                 if ifconfig $dev | grep -q 'inet.*addr:' ; then
 712                         export DEVICE="$dev"
 713                         break
 714                 fi
 715         done
 716
 717         else
 718                 for interface in ${DEVICE}; do
 719                         ipconfig -t "$ETHDEV_TIMEOUT" ${interface} | tee /netboot-${interface}.config
 720                         [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
 721                         if [ "$IPV4ADDR" != "0.0.0.0" ]
 722                         then
 723                                 break
 724                         fi
 725                 done
 726         fi
 727
 728         for interface in ${DEVICE}; do
 729                 # source relevant ipconfig output
 730                 OLDHOSTNAME=${HOSTNAME}
 731                 [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
 732                 [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
 733                 export HOSTNAME
 734
 735                 if [ -n "${interface}" ]
 736                 then
 737                         HWADDR="$(cat /sys/class/net/${interface}/address)"
 738                 fi
 739
 740                 if [ ! -e "/etc/resolv.conf" ]
 741                 then
 742                         echo "Creating /etc/resolv.conf"
 743
 744                         if [ -n "${DNSDOMAIN}" ]
 745                         then
 746                                 echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
 747                                 echo "search ${DNSDOMAIN}" >> /etc/resolv.conf
 748                         fi
 749
 750                         for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
 751                         do
 752                                 if [ -n "$i" ] && [ "$i" != 0.0.0.0 ]
 753                                 then
 754                                         echo "nameserver $i" >> /etc/resolv.conf
 755                                 fi
 756                         done
 757                 fi
 758
 759                 # Check if we have a network device at all
 760                 if ! ls /sys/class/net/"$interface" > /dev/null 2>&1 && \
 761                    ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
 762                    ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
 763                    ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
 764                    ! ls /sys/class/net/ra0 > /dev/null 2>&1
 765                 then
 766                         panic "No supported network device found, maybe a non-mainline driver is required."
 767                 fi
 768         done
 769 }
 770
 771 do_netmount()
 772 {
 773         do_netsetup
 774
 775         if [ "${NFSROOT}" = "auto" ]
 776         then
 777                 NFSROOT=${ROOTSERVER}:${ROOTPATH}
 778         fi
 779
 780         rc=1
 781
 782         if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
 783         then
 784                 do_httpmount
 785                 return $?
 786         fi
 787
 788         if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
 789         then
 790                 NFSROOT=${ROOTSERVER}:${NFSROOT}
 791         fi
 792
 793         log_begin_msg "Trying netboot from ${NFSROOT}"
 794
 795         if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
 796         then
 797                 rc=0
 798         elif do_nfsmount
 799         then
 800                 NETBOOT="nfs"
 801                 export NETBOOT
 802                 rc=0
 803         fi
 804
 805         log_end_msg
 806         return ${rc}
 807 }
 808
 809 do_iscsi()
 810 {
 811         do_netsetup
 812         #modprobe ib_iser
 813         modprobe iscsi_tcp
 814         local debugopt=""
 815         [ "${DEBUG}" == "Yes" ] && debugopt="-d 8"
 816         #FIXME this name is supposed to be unique - some date + ifconfig hash?
 817         ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
 818         export ISCSI_INITIATORNAME
 819         if [ -n "${ISCSI_SERVER}" ] ; then
 820                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
 821         else
 822                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
 823         fi
 824         if [ $? != 0 ]
 825         then
 826                 panic "Failed to log into iscsi target"
 827         fi
 828         local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
 829                             /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
 830         if [ -n "${host}" ]
 831         then
 832                 local devices=""
 833                 local i=0
 834                 while [ -z "${devices}" -a $i -lt 60 ]
 835                 do
 836                         sleep 1
 837                         devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
 838                                          /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
 839                         i=$(expr $i + 1)
 840                         echo -ne $i\\r
 841                 done
 842                 for dev in $devices
 843                 do
 844                         if check_dev "null" "/dev/$dev"
 845                         then
 846                                 NETBOOT="iscsi"
 847                                 export NETBOOT
 848                                 return 0;
 849                         fi
 850                 done
 851                 panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
 852         else
 853                 panic "Failed to locate iSCSI host in /sys"
 854         fi
 855 }
 856
 857 do_httpmount ()
 858 {
 859         rc=1
 860
 861         for webfile in HTTPFS FTPFS FETCH
 862         do
 863                 local url="$(eval echo \"\$\{${webfile}\}\")"
 864                 local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
 865
 866                 if [ -n "$url" ]
 867                 then
 868                         case "${extension}" in
 869                                 iso|squashfs|tgz|tar)
 870                                         if [ "${extension}" = "iso" ]
 871                                         then
 872                                                 mkdir -p "${alt_mountpoint}"
 873                                                 dest="${alt_mountpoint}"
 874                                         else
 875                                                 local dest="${mountpoint}/${LIVE_MEDIA_PATH}"
 876                                                 mount -t ramfs ram "${mountpoint}"
 877                                                 mkdir -p "${dest}"
 878                                         fi
 879                                         if [ "${webfile}" = "FETCH" ]
 880                                         then
 881                                                 case "$url" in
 882                                                         tftp*)
 883                                                                 ip="$(dirname $url | sed -e 's|tftp://||g' -e 's|/.*$||g')"
 884                                                                 rfile="$(echo $url | sed -e "s|tftp://$ip||g")"
 885                                                                 lfile="$(basename $url)"
 886                                                                 log_begin_msg "Trying tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip"
 887                                                                 tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip
 888                                                         ;;
 889
 890                                                         *)
 891                                                                 log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
 892                                                                 wget "${url}" -O "${dest}/$(basename ${url})"
 893                                                                 ;;
 894                                                 esac
 895                                         else
 896                                                 log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
 897                                                 if [ "${webfile}" = "FTPFS" ]
 898                                                 then
 899                                                         FUSE_MOUNT="curlftpfs"
 900                                                         url="$(dirname ${url})"
 901                                                 else
 902                                                         FUSE_MOUNT="httpfs"
 903                                                 fi
 904                                                 modprobe fuse
 905                                                 $FUSE_MOUNT "${url}" "${dest}"
 906                                                 ROOT_PID="$(minips h -C "$FUSE_MOUNT" | { read x y ; echo "$x" ; } )"
 907                                         fi
 908                                         [ ${?} -eq 0 ] && rc=0
 909                                         [ "${extension}" = "tgz" ] && live_dest="ram"
 910                                         if [ "${extension}" = "iso" ]
 911                                         then
 912                                                 isoloop=$(setup_loop "${dest}/$(basename "${url}")" "loop" "/sys/block/loop*" "" '')
 913                                                 mount -t iso9660 "${isoloop}" "${mountpoint}"
 914                                                 rc=${?}
 915                                         fi
 916                                         break
 917                                         ;;
 918
 919                                 *)
 920                                         log_begin_msg "Unrecognized archive extension for ${url}"
 921                                         ;;
 922                         esac
 923                 fi
 924         done
 925
 926         if [ ${rc} != 0 ]
 927         then
 928                 if [ -d "${alt_mountpoint}" ]
 929                 then
 930                         umount "${alt_mountpoint}"
 931                         rmdir "${alt_mountpoint}"
 932                 fi
 933                 umount "${mountpoint}"
 934         elif [ "${webfile}"  != "FETCH" ] ; then
 935                 NETBOOT="${webfile}"
 936                 export NETBOOT
 937         fi
 938
 939         return ${rc}
 940 }
 941
 942 do_nfsmount ()
 943 {
 944         rc=1
 945
 946         modprobe -q nfs
 947
 948         if [ -z "${NFSOPTS}" ]
 949         then
 950                 NFSOPTS=""
 951         fi
 952
 953         log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
 954
 955         # FIXME: This while loop is an ugly HACK round an nfs bug
 956         i=0
 957         while [ "$i" -lt 60 ]
 958         do
 959                 nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
 960                 sleep 1
 961                 i="$(($i + 1))"
 962         done
 963
 964         return ${rc}
 965 }
 966
 967 do_cifsmount ()
 968 {
 969         rc=1
 970
 971         if [ -x "/sbin/mount.cifs" ]
 972         then
 973                 if [ -z "${NFSOPTS}" ]
 974                 then
 975                         CIFSOPTS="-ouser=root,password="
 976                 else
 977                         CIFSOPTS="${NFSOPTS}"
 978                 fi
 979
 980                 log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
 981                 modprobe -q cifs
 982
 983                 if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
 984                 then
 985                         rc=0
 986                 fi
 987         fi
 988
 989         return ${rc}
 990 }
 991
 992 do_snap_copy ()
 993 {
 994         fromdev="${1}"
 995         todir="${2}"
 996         snap_type="${3}"
 997         size=$(fs_size "${fromdev}" "" "used")
 998
 999         if [ -b "${fromdev}" ]
1000         then
1001                 log_success_msg "Copying snapshot ${fromdev} to ${todir}..."
1002
1003                 # look for free mem
1004                 if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
1005                 then
1006                         todev=$(awk -v pat="$(base_path ${todir})" '$2 == pat { print $1 }' /proc/mounts)
1007                         freespace=$(df -k | awk '/'${todev}'/{print $4}')
1008                 else
1009                         freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
1010                 fi
1011
1012                 tomount="/mnt/tmpsnap"
1013
1014                 if [ ! -d "${tomount}" ]
1015                 then
1016                         mkdir -p "${tomount}"
1017                 fi
1018
1019                 fstype=$(get_fstype "${fromdev}")
1020
1021                 if [ -n "${fstype}" ]
1022                 then
1023                         # Copying stuff...
1024                         mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
1025                         cp -a "${tomount}"/* ${todir}
1026                         umount "${tomount}"
1027                 else
1028                         log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
1029                 fi
1030
1031                 rmdir "${tomount}"
1032
1033                 if echo ${fromdev} | grep -qs loop
1034                 then
1035                         losetup -d "${fromdev}"
1036                 fi
1037
1038                 return 0
1039         else
1040                 log_warning_msg "Unable to find the snapshot ${snap_type} medium"
1041                 return 1
1042         fi
1043 }
1044
1045 find_snap ()
1046 {
1047         # Look for ${snap_label}.* in block devices
1048         snap_label="${1}"
1049         black_listed_devices="${2}"
1050         white_listed_devices="${3}"
1051
1052         if [ "${PERSISTENT}" != "nofiles" ]
1053         then
1054                 # search for image files
1055                 snapdata=$(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" "${black_listed_devices}" "${white_listed_devices}")
1056         fi
1057
1058         if [ -z "${snapdata}" ]
1059         then
1060                 snapdata=$(find_cow_device "${snap_label}" "${black_listed_devices}" "${white_listed_devices}")
1061         fi
1062         echo "${snapdata}"
1063 }
1064
1065 try_snap ()
1066 {
1067         # copy the contents of previously found snapshot to ${snap_mount}
1068         # and remember the device and filename for resync on exit in live-boot.init
1069
1070         snapdata="${1}"
1071         snap_mount="${2}"
1072         snap_type="${3}"
1073         snap_relpath="${4}"
1074
1075         if [ -z "${snap_relpath}" ]
1076         then
1077                 # root snapshot, default usage
1078                 snap_relpath="/"
1079         else
1080                 # relative snapshot (actually used just for "/home" snapshots)
1081                 snap_mount="${2}${snap_relpath}"
1082         fi
1083
1084         if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
1085         then
1086                 log_success_msg "found snapshot: ${snapdata}"
1087                 snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
1088                 snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
1089                 snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
1090
1091                 if ! try_mount "${snapdev}" "${snapback}" "ro"
1092                 then
1093                         break
1094                 fi
1095
1096                 RES="0"
1097
1098                 if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|ext4\|jffs2\)'
1099                 then
1100                         # squashfs, jffs2 or ext2/ext3/ext4 snapshot
1101                         dev=$(get_backing_device "${snapback}/${snapfile}")
1102
1103                         do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1104                         RES="$?"
1105                 else
1106                         # cpio.gz snapshot
1107
1108                         # Unfortunately klibc's cpio is incompatible with the
1109                         # rest of the world; everything else requires -u -d,
1110                         # while klibc doesn't implement them. Try to detect
1111                         # whether it's in use.
1112                         cpiopath="$(which cpio)" || true
1113                         if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath"
1114                         then
1115                                 cpioargs=
1116                         else
1117                                 cpioargs='--unconditional --make-directories'
1118                         fi
1119
1120                         if [ -s "${snapback}/${snapfile}" ]
1121                         then
1122                                 BEFOREDIR="$(pwd)"
1123                                 cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null
1124                                 RES="$?"
1125                                 cd "${BEFOREDIR}"
1126                         else
1127                                 log_warning_msg "${snapback}/${snapfile} is empty, adding it for sync on reboot."
1128                                 RES="0"
1129                         fi
1130
1131                         if [ "${RES}" != "0" ]
1132                         then
1133                                 log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
1134                         fi
1135                 fi
1136
1137                 umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
1138
1139                 if [ "${RES}" != "0" ]
1140                 then
1141                         log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
1142                 fi
1143
1144         elif [ -b "${snapdata}" ]
1145         then
1146                 # Try to find if it could be a snapshot partition
1147                 dev="${snapdata}"
1148                 log_success_msg "found snapshot ${snap_type} device on ${dev}"
1149                 if echo "${dev}" | grep -qs loop
1150                 then
1151                         # strange things happens, user confused?
1152                         snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
1153                         snapfile=$(basename ${snaploop})
1154                         snapdev=$(awk -v pat="$( dirname ${snaploop})" '$2 == pat { print $1 }' /proc/mounts)
1155                 else
1156                         snapdev="${dev}"
1157                 fi
1158
1159                 if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1160                 then
1161                         log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)"
1162                         return 1
1163                 else
1164                         if [ -n "${snapfile}" ]
1165                         then
1166                                 # it was a loop device, user confused
1167                                 umount ${snapdev}
1168                         fi
1169                 fi
1170         else
1171                 log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)"
1172                 return 1
1173         fi
1174
1175         echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
1176         return 0
1177 }
1178
1179 setup_unionfs ()
1180 {
1181         image_directory="${1}"
1182         rootmnt="${2}"
1183         addimage_directory="${3}"
1184
1185         case ${UNIONTYPE} in
1186                 aufs|unionfs)
1187                         modprobe -q -b ${UNIONTYPE}
1188
1189                         if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ]
1190                         then
1191                                 echo "${UNIONTYPE} not available, falling back to unionfs-fuse."
1192                                 echo "This might be really slow."
1193
1194                                 UNIONTYPE="unionfs-fuse"
1195                         fi
1196                         ;;
1197         esac
1198
1199         if [ "${UNIONTYPE}" = unionfs-fuse ]
1200         then
1201                 modprobe fuse
1202         fi
1203
1204         # run-init can't deal with images in a subdir, but we're going to
1205         # move all of these away before it runs anyway.  No, we're not,
1206         # put them in / since move-mounting them into / breaks mono and
1207         # some other apps.
1208
1209         croot="/"
1210
1211         # Let's just mount the read-only file systems first
1212         rofslist=""
1213
1214         if [ "${UNIONTYPE}" = "aufs" ]
1215         then
1216                 roopt="rr+wh"
1217                 noxino_opt="noxino,"
1218         elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
1219         then
1220                 roopt="RO"
1221         else
1222                 roopt="ro"
1223         fi
1224
1225         if [ -z "${PLAIN_ROOT}" ]
1226         then
1227                 # Read image names from ${MODULE}.module if it exists
1228                 if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
1229                 then
1230                         for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
1231                         do
1232                                 image_string="${image_string} ${image_directory}/${IMAGE}"
1233                         done
1234                 elif [ -e "${image_directory}/${MODULE}.module" ]
1235                 then
1236                         for IMAGE in $(cat ${image_directory}/${MODULE}.module)
1237                         do
1238                                 image_string="${image_string} ${image_directory}/${IMAGE}"
1239                         done
1240                 else
1241                         # ${MODULE}.module does not exist, create a list of images
1242                         for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1243                         do
1244                                 for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
1245                                 do
1246                                         if [ -e "${IMAGE}" ]
1247                                         then
1248                                                 image_string="${image_string} ${IMAGE}"
1249                                         fi
1250                                 done
1251                         done
1252
1253                         if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
1254                         then
1255                                 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1256                                 do
1257                                         for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
1258                                         do
1259                                                 if [ -e "${IMAGE}" ]
1260                                                 then
1261                                                         image_string="${image_string} ${IMAGE}"
1262                                                 fi
1263                                         done
1264                                 done
1265                         fi
1266
1267                         # Now sort the list
1268                         image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
1269                 fi
1270
1271                 [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
1272
1273                 mkdir -p "${croot}"
1274
1275                 for image in ${image_string}
1276                 do
1277                         imagename=$(basename "${image}")
1278
1279                         export image devname
1280                         maybe_break live-realpremount
1281                         log_begin_msg "Running /scripts/live-realpremount"
1282                         run_scripts /scripts/live-realpremount
1283                         log_end_msg
1284
1285                         if [ -d "${image}" ]
1286                         then
1287                                 # it is a plain directory: do nothing
1288                                 rofslist="${image} ${rofslist}"
1289                         elif [ -f "${image}" ]
1290                         then
1291                                 if losetup --help 2>&1 | grep -q -- "-r\b"
1292                                 then
1293                                         backdev=$(get_backing_device "${image}" "-r")
1294                                 else
1295                                         backdev=$(get_backing_device "${image}")
1296                                 fi
1297                                 fstype=$(get_fstype "${backdev}")
1298
1299                                 if [ "${fstype}" = "unknown" ]
1300                                 then
1301                                         panic "Unknown file system type on ${backdev} (${image})"
1302                                 fi
1303
1304                                 if [ -z "${fstype}" ]
1305                                 then
1306                                         fstype="${imagename##*.}"
1307                                         log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
1308                                 fi
1309
1310                                 if [ "${UNIONTYPE}" != "unionmount" ]
1311                                 then
1312                                         mpoint="${croot}/${imagename}"
1313                                         rofslist="${mpoint} ${rofslist}"
1314                                 else
1315                                         mpoint="${rootmnt}"
1316                                         rofslist="${rootmnt} ${rofslist}"
1317                                 fi
1318                                 mkdir -p "${mpoint}"
1319                                 log_begin_msg "Mounting \"${image}\" on \"${mpoint}\" via \"${backdev}\""
1320                                 mount -t "${fstype}" -o ro,noatime "${backdev}" "${mpoint}" || panic "Can not mount ${backdev} (${image}) on ${mpoint}"
1321                                 log_end_msg
1322                         fi
1323                 done
1324         else
1325                 # we have a plain root system
1326                 mkdir -p "${croot}/filesystem"
1327                 log_begin_msg "Mounting \"${image_directory}\" on \"${croot}/filesystem\""
1328                 mount -t $(get_fstype "${image_directory}") -o ro,noatime "${image_directory}" "${croot}/filesystem" || \
1329                         panic "Can not mount ${image_directory} on ${croot}/filesystem" && \
1330                         rofslist="${croot}/filesystem ${rofslist}"
1331                 # probably broken:
1332                 mount -o bind ${croot}/filesystem $mountpoint
1333                 log_end_msg
1334         fi
1335
1336         mkdir -p /cow
1337
1338         # Looking for "${root_persistence}" device or file
1339         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1340         then
1341
1342                 if [ -z "${QUICKUSBMODULES}" ]
1343                 then
1344                         # Load USB modules
1345                         num_block=$(ls -l /sys/block | wc -l)
1346                         for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
1347                         do
1348                                 modprobe -q -b ${module}
1349                         done
1350
1351                         udevadm trigger
1352                         udevadm settle
1353
1354                         # For some reason, udevsettle does not block in this scenario,
1355                         # so we sleep for a little while.
1356                         #
1357                         # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
1358                         for timeout in 5 4 3 2 1
1359                         do
1360                                 sleep 1
1361
1362                                 if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
1363                                 then
1364                                         break
1365                                 fi
1366                         done
1367                 fi
1368
1369                 case "${PERSISTENT_MEDIA}" in
1370                         removable)
1371                                 whitelistdev="$(removable_dev)"
1372                                 ;;
1373                         removable-usb)
1374                                 whitelistdev="$(removable_usb_dev)"
1375                                 ;;
1376                         *)
1377                                 whitelistdev=""
1378                                 ;;
1379                 esac
1380
1381                 # search for label and files (this could be hugely optimized)
1382                 cowprobe=$(find_cow_device "${root_persistence}" "${blacklistdev}" "${whitelistdev}")
1383                 if [ -b "${cowprobe}" ]
1384                 then
1385                         # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots
1386                         # makes sense to have both persistence for /cow and /home mounted, maybe also with
1387                         # snapshots to be sure to really store some e.g key config files,
1388                         # but not on the same media
1389                         blacklistdev="${cowprobe}"
1390                         PERSISTENCE_IS_ON="1"
1391                         export PERSISTENCE_IS_ON
1392                 fi
1393                 # homecow just mount something on /home, this should be generalized some way
1394                 homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}" "${whitelistdev}")
1395                 if [ -b "${homecow}" ]
1396                 then
1397                         PERSISTENCE_IS_ON="1"
1398                         export PERSISTENCE_IS_ON
1399                 fi
1400                 root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}" "${whitelistdev}")
1401                 # This second type should be removed when snapshot will get smarter,
1402                 # hence when "/etc/live-snapshot*list" will be supported also by
1403                 # ext2|ext3|ext4|jffs2 snapshot types.
1404                 home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}" "${whitelistdev}")
1405
1406                 if [ -b "${cowprobe}" ]
1407                 then
1408                         cowdevice=${cowprobe}
1409                         cow_fstype=$(get_fstype "${cowprobe}")
1410                         cow_mountopt="rw,noatime"
1411
1412                         if [ "${FORCEPERSISTENTFSCK}" = "Yes" ]
1413                         then
1414                                 fsck -y ${cowdevice}
1415                         fi
1416                 else
1417                         log_warning_msg "Unable to find the persistent medium"
1418                         cowdevice="tmpfs"
1419                         cow_fstype="tmpfs"
1420                         cow_mountopt="rw,noatime,mode=755"
1421                 fi
1422         elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
1423         then
1424                 # check if there are any nfs options
1425                 if echo ${NFS_COW}|grep -q ','
1426                 then
1427                         nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
1428                         nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
1429                 else
1430                         nfs_cow_opts="-o nolock"
1431                         nfs_cow=${NFS_COW}
1432                 fi
1433                 mac="$(get_mac)"
1434                 if [ -n "${mac}" ]
1435                 then
1436                         cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
1437                         cow_fstype="nfs"
1438                 else
1439                         panic "unable to determine mac address"
1440                 fi
1441         else
1442                 cowdevice="tmpfs"
1443                 cow_fstype="tmpfs"
1444                 cow_mountopt="rw,noatime,mode=755"
1445         fi
1446
1447         if [ "${UNIONTYPE}" != "unionmount" ]
1448         then
1449
1450                 if [ "${cow_fstype}" = "nfs" ]
1451                 then
1452                         log_begin_msg \
1453                                 "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
1454                         nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
1455                                 panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
1456                 else
1457                         mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
1458                                 panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
1459                 fi
1460         fi
1461
1462         rofscount=$(echo ${rofslist} |wc -w)
1463
1464         if [ ${rofscount} -ne 1 ]
1465         then
1466                 panic "only one RO file system supported with exposedroot: ${rofslist}"
1467         fi
1468         rofs=${rofslist%% }
1469
1470         if [ -n "${EXPOSED_ROOT}" ]
1471         then
1472                 mount --bind ${rofs} ${rootmnt} || \
1473                         panic "bind mount of ${rofs} failed"
1474
1475                 if [ -z "${SKIP_UNION_MOUNTS}" ]
1476                 then
1477                         cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool /home /var/lib/live'
1478                 else
1479                         cow_dirs=''
1480                 fi
1481         else
1482                 cow_dirs="/"
1483         fi
1484
1485         if [ "${cow_fstype}" != "tmpfs" ] && [ "${cow_dirs}" != "/" ] && [ "${UNIONTYPE}" = "unionmount" ]
1486         then
1487                 true # FIXME: Maybe it does, I don't really know.
1488                 #panic "unionmount does not support subunions (${cow_dirs})."
1489         fi
1490
1491         unionmountopts=""
1492         unionmountpoint=""
1493
1494         for dir in ${cow_dirs}; do
1495                 mkdir -p /cow${dir}
1496
1497                 unionmountpoint="${rootmnt}${dir}"
1498                 unionrw="/cow${dir}"
1499                 unionro="${rofs}${dir}"
1500                 # We don't handle spaces and other junk gracefully here, hopefully not needed.
1501                 case "${UNIONTYPE}" in
1502                         unionfs-fuse)
1503                                 unionmountopts="-o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid"
1504                                 unionmountopts="${unionmountopts} ${unionrw}=RW:${unionro}=RO"
1505                                 ( sysctl -w fs.file-max=391524 ; ulimit -HSn 16384
1506                                 unionfs-fuse ${unionmountopts} "${unionmountpoint}" ) && \
1507                                 ( mkdir -p /run/sendsigs.omit.d
1508                                 pidof unionfs-fuse >> /run/sendsigs.omit.d/unionfs-fuse || true )
1509                                 ;;
1510
1511                         unionmount)
1512                                 unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
1513                                 mount_full $unionmountopts "${unionmountpoint}"
1514                                 ;;
1515
1516
1517                         *)
1518                                 unionmountopts="-o noatime,${noxino_opt}dirs=${unionrw}=rw:${unionro}=${roopt}"
1519                                 mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
1520                                 ;;
1521                 esac || \
1522                         panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
1523         done
1524
1525         # Correct the permissions of /:
1526         chmod 0755 "${rootmnt}"
1527
1528         # tmpfs file systems
1529         touch /etc/fstab
1530         mkdir -p "${rootmnt}/live"
1531         mount -t tmpfs tmpfs ${rootmnt}/live
1532
1533         # Adding other custom mounts
1534         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1535         then
1536                 # directly mount /home
1537                 # FIXME: add a custom mounts configurable system
1538
1539                 if [ -b "${homecow}" ]
1540                 then
1541                         mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
1542                         export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
1543                 else
1544                         log_warning_msg "Unable to find the persistent home medium"
1545                 fi
1546
1547                 # Look for other snapshots to copy in
1548                 try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
1549                 # This second type should be removed when snapshot grow smarter
1550                 try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
1551         fi
1552
1553         if [ -n "${SHOWMOUNTS}" ]
1554         then
1555                 for d in ${rofslist}
1556                 do
1557                         mkdir -p "${rootmnt}/live/${d##*/}"
1558
1559                         case d in
1560                                 *.dir)
1561                                         # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1562                                         ;;
1563
1564                                 *)
1565                                         case "${UNIONTYPE}" in
1566                                                 unionfs-fuse)
1567                                                         mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1568                                                         ;;
1569
1570                                                 *)
1571                                                         mount -o move "${d}" "${rootmnt}/live/${d##*/}"
1572                                                         ;;
1573                                         esac
1574                                         ;;
1575                         esac
1576                 done
1577         fi
1578
1579         # shows cow fs on /cow for use by live-snapshot
1580         mkdir -p "${rootmnt}/live/cow"
1581         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 ${rootmnt}/live/cow"
1582 }
1583
1584 check_dev ()
1585 {
1586         sysdev="${1}"
1587         devname="${2}"
1588         skip_uuid_check="${3}"
1589
1590         # support for fromiso=.../isofrom=....
1591         if [ -n "$FROMISO" ]
1592         then
1593                 ISO_DEVICE=$(dirname $FROMISO)
1594                 if ! [ -b $ISO_DEVICE ]
1595                 then
1596                         # to support unusual device names like /dev/cciss/c0d0p1
1597                         # as well we have to identify the block device name, let's
1598                         # do that for up to 15 levels
1599                         i=15
1600                         while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
1601                         do
1602                                 ISO_DEVICE=$(dirname ${ISO_DEVICE})
1603                                 [ -b "$ISO_DEVICE" ] && break
1604                                 i=$(($i -1))
1605                         done
1606                 fi
1607
1608                 if [ "$ISO_DEVICE" = "/" ]
1609                 then
1610                         echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live-boot.log
1611                 else
1612                         fs_type=$(get_fstype "${ISO_DEVICE}")
1613                         if is_supported_fs ${fs_type}
1614                         then
1615                                 mkdir /isofrom
1616                                 mount -t $fs_type "$ISO_DEVICE" /isofrom
1617                                 ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
1618                                 loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
1619                                 devname="${loopdevname}"
1620                         else
1621                                 echo "Warning: unable to mount $ISO_DEVICE." >>/live-boot.log
1622                         fi
1623                 fi
1624         fi
1625
1626         if [ -z "${devname}" ]
1627         then
1628                 devname=$(sys2dev "${sysdev}")
1629         fi
1630
1631         if [ -d "${devname}" ]
1632         then
1633                 mount -o bind "${devname}" $mountpoint || continue
1634
1635                 if is_live_path $mountpoint
1636                 then
1637                         echo $mountpoint
1638                         return 0
1639                 else
1640                         umount $mountpoint
1641                 fi
1642         fi
1643
1644         IFS=","
1645         for device in ${devname}
1646         do
1647                 case "$device" in
1648                         *mapper*)
1649                                 # Adding lvm support
1650                                 if [ -x /scripts/local-top/lvm2 ]
1651                                 then
1652                                         ROOT="$device" resume="" /scripts/local-top/lvm2
1653                                 fi
1654                                 ;;
1655
1656                         /dev/md*)
1657                                 # Adding raid support
1658                                 if [ -x /scripts/local-top/mdadm ]
1659                                 then
1660                                         cp /conf/conf.d/md /conf/conf.d/md.orig
1661                                         echo "MD_DEVS=$device " >> /conf/conf.d/md
1662                                         /scripts/local-top/mdadm
1663                                         mv /conf/conf.d/md.orig /conf/conf.d/md
1664                                 fi
1665                                 ;;
1666                 esac
1667         done
1668         unset IFS
1669
1670         [ -n "$device" ] && devname="$device"
1671
1672         [ -e "$devname" ] || continue
1673
1674         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1675         then
1676                 loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
1677                 devname="${loopdevname}"
1678         fi
1679
1680         fstype=$(get_fstype "${devname}")
1681
1682         if is_supported_fs ${fstype}
1683         then
1684                 devuid=$(blkid -o value -s UUID "$devname")
1685                 [ -n "$devuid" ] && grep -qs "\<$devuid\>" $tried && continue
1686                 mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
1687                 [ -n "$devuid" ] && echo "$devuid" >> $tried
1688
1689                 if is_live_path ${mountpoint} && \
1690                         ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
1691                 then
1692                         echo ${mountpoint}
1693                         return 0
1694                 else
1695                         umount ${mountpoint} 2>/dev/null
1696                 fi
1697         fi
1698
1699         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1700         then
1701                 losetup -d "${loopdevname}"
1702         fi
1703
1704         return 1
1705 }
1706
1707 find_livefs ()
1708 {
1709         timeout="${1}"
1710
1711         # don't start autodetection before timeout has expired
1712         if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
1713         then
1714                 if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
1715                 then
1716                         return 1
1717                 fi
1718         fi
1719
1720         # first look at the one specified in the command line
1721         case "${LIVE_MEDIA}" in
1722                 removable-usb)
1723                         for sysblock in $(removable_usb_dev "sys")
1724                         do
1725                                 for dev in $(subdevices "${sysblock}")
1726                                 do
1727                                         if check_dev "${dev}"
1728                                         then
1729                                                 return 0
1730                                         fi
1731                                 done
1732                         done
1733                         return 1
1734                         ;;
1735
1736                 removable)
1737                         for sysblock in $(removable_dev "sys")
1738                         do
1739                                 for dev in $(subdevices "${sysblock}")
1740                                 do
1741                                         if check_dev "${dev}"
1742                                         then
1743                                                 return 0
1744                                         fi
1745                                 done
1746                         done
1747                         return 1
1748                         ;;
1749
1750                 *)
1751                         if [ ! -z "${LIVE_MEDIA}" ]
1752                         then
1753                                 if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
1754                                 then
1755                                         return 0
1756                                 fi
1757                         fi
1758                         ;;
1759         esac
1760
1761         # or do the scan of block devices
1762         # prefer removable devices over non-removable devices, so scan them first
1763         devices_to_scan="$(removable_dev 'sys') $(non_removable_dev 'sys')"
1764
1765         for sysblock in $devices_to_scan
1766         do
1767                 devname=$(sys2dev "${sysblock}")
1768                 [ -e "$devname" ] || continue
1769                 fstype=$(get_fstype "${devname}")
1770
1771                 if /lib/udev/cdrom_id ${devname} > /dev/null
1772                 then
1773                         if check_dev "null" "${devname}"
1774                         then
1775                                 return 0
1776                         fi
1777                 elif is_nice_device "${sysblock}"
1778                 then
1779                         for dev in $(subdevices "${sysblock}")
1780                         do
1781                                 if check_dev "${dev}"
1782                                 then
1783                                         return 0
1784                                 fi
1785                         done
1786                 elif [ "${fstype}" = "squashfs" -o \
1787                         "${fstype}" = "btrfs" -o \
1788                         "${fstype}" = "ext2" -o \
1789                         "${fstype}" = "ext3" -o \
1790                         "${fstype}" = "ext4" -o \
1791                         "${fstype}" = "jffs2" ]
1792                 then
1793                         # This is an ugly hack situation, the block device has
1794                         # an image directly on it.  It's hopefully
1795                         # live-boot, so take it and run with it.
1796                         ln -s "${devname}" "${devname}.${fstype}"
1797                         echo "${devname}.${fstype}"
1798                         return 0
1799                 fi
1800         done
1801
1802         return 1
1803 }
1804
1805 integrity_check ()
1806 {
1807         media_mountpoint="${1}"
1808
1809         log_begin_msg "Checking media integrity"
1810
1811         cd ${media_mountpoint}
1812         /bin/md5sum -c md5sum.txt < /dev/tty8 > /dev/tty8
1813         RC="${?}"
1814
1815         log_end_msg
1816
1817         if [ "${RC}" -eq 0 ]
1818         then
1819                 log_success_msg "Everything ok, will reboot in 10 seconds."
1820                 sleep 10
1821                 cd /
1822                 umount ${media_mountpoint}
1823                 sync
1824                 echo u > /proc/sysrq-trigger
1825                 echo b > /proc/sysrq-trigger
1826         else
1827                 panic "Not ok, a media defect is likely, switch to VT8 for details."
1828         fi
1829 }
1830
1831 mountroot ()
1832 {
1833         if [ -x /scripts/local-top/cryptroot ]; then
1834             /scripts/local-top/cryptroot
1835         fi
1836
1837         exec 6>&1
1838         exec 7>&2
1839         exec > live-boot.log
1840         exec 2>&1
1841         tail -f live-boot.log >&7 &
1842         tailpid="${!}"
1843
1844         # Ensure 'panic' function is overridden
1845         . /scripts/live-functions
1846
1847         Arguments
1848
1849         maybe_break live-premount
1850         log_begin_msg "Running /scripts/live-premount"
1851         run_scripts /scripts/live-premount
1852         log_end_msg
1853
1854         # Needed here too because some things (*cough* udev *cough*)
1855         # changes the timeout
1856
1857         if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
1858         then
1859                 if do_netmount
1860                 then
1861                         livefs_root="${mountpoint}"
1862                 else
1863                         panic "Unable to find a live file system on the network"
1864                 fi
1865         else
1866                 if [ -n "${ISCSI_PORTAL}" ]
1867                 then
1868                         do_iscsi && livefs_root="${mountpoint}"
1869                 elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
1870                 then
1871                         # Do a local boot from hd
1872                         livefs_root=${ROOT}
1873                 else
1874                         if [ -x /usr/bin/memdiskfind ]
1875                         then
1876                                 MEMDISK=$(/usr/bin/memdiskfind)
1877
1878                                 if [ $? -eq 0 ]
1879                                 then
1880                                         # We found a memdisk, set up phram
1881                                         modprobe phram phram=memdisk,${MEMDISK}
1882
1883                                         # Load mtdblock, the memdisk will be /dev/mtdblock0
1884                                         modprobe mtdblock
1885                                 fi
1886                         fi
1887
1888                         # Scan local devices for the image
1889                         i=0
1890                         while [ "$i" -lt 60 ]
1891                         do
1892                                 livefs_root=$(find_livefs ${i})
1893
1894                                 if [ -n "${livefs_root}" ]
1895                                 then
1896                                         break
1897                                 fi
1898
1899                                 sleep 1
1900                                 i="$(($i + 1))"
1901                         done
1902                 fi
1903         fi
1904
1905         if [ -z "${livefs_root}" ]
1906         then
1907                 panic "Unable to find a medium containing a live file system"
1908         fi
1909
1910         if [ "${INTEGRITY_CHECK}" ]
1911         then
1912                 integrity_check "${livefs_root}"
1913         fi
1914
1915         if [ "${TORAM}" ]
1916         then
1917                 live_dest="ram"
1918         elif [ "${TODISK}" ]
1919         then
1920                 live_dest="${TODISK}"
1921         fi
1922
1923         if [ "${live_dest}" ]
1924         then
1925                 log_begin_msg "Copying live media to ${live_dest}"
1926                 copy_live_to "${livefs_root}" "${live_dest}"
1927                 log_end_msg
1928         fi
1929
1930         # if we do not unmount the ISO we can't run "fsck /dev/ice" later on
1931         # because the mountpoint is left behind in /proc/mounts, so let's get
1932         # rid of it when running from RAM
1933         if [ -n "$FROMISO" ] && [ "${TORAM}" ]
1934         then
1935           losetup -d /dev/loop0
1936           grep -q /isofrom /proc/mounts && umount /isofrom
1937         fi
1938
1939         if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
1940         then
1941                 setup_unionfs "${livefs_root}" "${rootmnt}"
1942         else
1943                 mac="$(get_mac)"
1944                 mac="$(echo ${mac} | sed 's/-//g')"
1945                 mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
1946         fi
1947
1948
1949         if [ -n "${ROOT_PID}" ] ; then
1950                 echo "${ROOT_PID}" > "${rootmnt}"/live/root.pid
1951         fi
1952
1953         log_end_msg
1954
1955         # unionfs-fuse needs /dev to be bind-mounted for the duration of
1956         # live-bottom; udev's init script will take care of things after that
1957         if [ "${UNIONTYPE}" = unionfs-fuse ]
1958         then
1959                 mount -n -o bind /dev "${rootmnt}/dev"
1960         fi
1961
1962         # Move to the new root filesystem so that programs there can get at it.
1963         if [ ! -d /root/live/image ]
1964         then
1965                 mkdir -p /root/live/image
1966                 mount --move /live/image /root/live/image
1967         fi
1968
1969         # aufs2 in kernel versions around 2.6.33 has a regression:
1970         # directories can't be accessed when read for the first the time,
1971         # causing a failure for example when accessing /var/lib/fai
1972         # when booting FAI, this simple workaround solves it
1973         ls /root/* >/dev/null 2>&1
1974
1975         # copy snapshot configuration if exists
1976         if [ -f snapshot.conf ]
1977         then
1978                 log_begin_msg "Copying snapshot.conf to ${rootmnt}/etc/live/boot.d"
1979                 if [ ! -d "${rootmnt}/etc/live/boot.d" ]
1980                 then
1981                         mkdir -p "${rootmnt}/etc/live/boot.d"
1982                 fi
1983                 cp snapshot.conf "${rootmnt}/etc/live/boot.d/"
1984                 log_end_msg
1985         fi
1986
1987         if [ -f /etc/resolv.conf ] && [ ! -s ${rootmnt}/etc/resolv.conf ]
1988         then
1989                 log_begin_msg "Copying /etc/resolv.conf to ${rootmnt}/etc/resolv.conf"
1990                 cp -v /etc/resolv.conf ${rootmnt}/etc/resolv.conf
1991                 log_end_msg
1992         fi
1993
1994         maybe_break live-bottom
1995         log_begin_msg "Running /scripts/live-bottom\n"
1996
1997         run_scripts /scripts/live-bottom
1998         log_end_msg
1999
2000         if [ "${UNIONFS}" = unionfs-fuse ]
2001         then
2002                 umount "${rootmnt}/dev"
2003         fi
2004
2005         exec 1>&6 6>&-
2006         exec 2>&7 7>&-
2007         kill ${tailpid}
2008         [ -w "${rootmnt}/var/log/" ] && cp live-boot.log "${rootmnt}/var/log/" 2>/dev/null
2009 }