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-encryption=*)
 248                                 PERSISTENT_ENCRYPTION="${ARGUMENT#*=}"
 249                                 export PERSISTENT_ENCRYPTION
 250                                 ;;
 251
 252                         persistent-media=*)
 253                                 PERSISTENT_MEDIA="${ARGUMENT#*=}"
 254                                 export PERSISTENT_MEDIA
 255                                 ;;
 256
 257                         persistent-path=*)
 258                                 PERSISTENT_PATH="${ARGUMENT#persistent-path=}"
 259                                 export PERSISTENT_PATH
 260                                 ;;
 261
 262                         persistent-storage=*)
 263                                 PERSISTENT_STORAGE="${ARGUMENT#persistent-storage=}"
 264                                 export PERSISTENT_STORAGE
 265                                 ;;
 266
 267                         persistent-subtext=*)
 268                                 root_persistence="${root_persistence}-${ARGUMENT#persistent-subtext=}"
 269                                 home_persistence="${home_persistence}-${ARGUMENT#persistent-subtext=}"
 270                                 root_snapshot_label="${root_snapshot_label}-${ARGUMENT#persistent-subtext=}"
 271                                 home_snapshot_label="${home_snapshot_label}-${ARGUMENT#persistent-subtext=}"
 272                                 ;;
 273
 274                         nopersistent)
 275                                 NOPERSISTENT="Yes"
 276                                 export NOPERSISTENT
 277                                 ;;
 278
 279                         noprompt)
 280                                 NOPROMPT="Yes"
 281                                 export NOPROMPT
 282                                 ;;
 283
 284                         noprompt=*)
 285                                 NOPROMPT="${ARGUMENT#noprompt=}"
 286                                 export NOPROMPT
 287                                 ;;
 288
 289                         quickusbmodules)
 290                                 QUICKUSBMODULES="Yes"
 291                                 export QUICKUSBMODULES
 292                                 ;;
 293
 294                         preseed/file=*|file=*)
 295                                 LOCATIONS="${ARGUMENT#*=} ${LOCATIONS}"
 296                                 export LOCATIONS
 297                                 ;;
 298
 299                         nopreseed)
 300                                 NOPRESEED="Yes"
 301                                 export NOPRESEED
 302                                 ;;
 303
 304                         */*=*)
 305                                 question="${ARGUMENT%%=*}"
 306                                 value="${ARGUMENT#*=}"
 307                                 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
 308                                 export PRESEEDS
 309                                 ;;
 310
 311                         showmounts)
 312                                 SHOWMOUNTS="Yes"
 313                                 export SHOWMOUNTS
 314                                 ;;
 315
 316                         silent)
 317                                 SILENT="Yes"
 318                                 export SILENT
 319                                 ;;
 320
 321                         todisk=*)
 322                                 TODISK="${ARGUMENT#todisk=}"
 323                                 export TODISK
 324                                 ;;
 325
 326                         toram)
 327                                 TORAM="Yes"
 328                                 export TORAM
 329                                 ;;
 330
 331                         toram=*)
 332                                 TORAM="Yes"
 333                                 MODULETORAM="${ARGUMENT#toram=}"
 334                                 export TORAM MODULETORAM
 335                                 ;;
 336
 337                         exposedroot)
 338                                 EXPOSED_ROOT="Yes"
 339                                 export EXPOSED_ROOT
 340                                 ;;
 341
 342                         plainroot)
 343                                 PLAIN_ROOT="Yes"
 344                                 export PLAIN_ROOT
 345                                 ;;
 346
 347                         skipunion)
 348                                 SKIP_UNION_MOUNTS="Yes"
 349                                 export SKIP_UNION_MOUNTS
 350                                 ;;
 351
 352                         root=*)
 353                                 ROOT="${ARGUMENT#root=}"
 354                                 export ROOT
 355                                 ;;
 356
 357                         union=*)
 358                                 UNIONTYPE="${ARGUMENT#union=}"
 359                                 export UNIONTYPE
 360                                 ;;
 361                 esac
 362         done
 363
 364         # sort of compatibility with netboot.h from linux docs
 365         if [ -z "${NETBOOT}" ]
 366         then
 367                 if [ "${ROOT}" = "/dev/nfs" ]
 368                 then
 369                         NETBOOT="nfs"
 370                         export NETBOOT
 371                 elif [ "${ROOT}" = "/dev/cifs" ]
 372                 then
 373                         NETBOOT="cifs"
 374                         export NETBOOT
 375                 fi
 376         fi
 377
 378         if [ -z "${MODULE}" ]
 379         then
 380                 MODULE="filesystem"
 381                 export MODULE
 382         fi
 383
 384         if [ -z "${UNIONTYPE}" ]
 385         then
 386                 UNIONTYPE="aufs"
 387                 export UNIONTYPE
 388         fi
 389
 390         if [ -n "${PERSISTENT}" ] && [ -z "${PERSISTENT_STORAGE}" ]
 391         then
 392                 PERSISTENT_STORAGE="filesystem,file"
 393                 export PERSISTENT_STORAGE
 394         fi
 395 }
 396
 397 is_live_path ()
 398 {
 399         DIRECTORY="${1}"
 400
 401         if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
 402         then
 403                 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs dir jffs2
 404                 do
 405                         if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
 406                         then
 407                                 return 0
 408                         fi
 409                 done
 410         fi
 411
 412         return 1
 413 }
 414
 415 matches_uuid ()
 416 {
 417         if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
 418         then
 419                 return 0
 420         fi
 421
 422         path="${1}"
 423         uuid="$(cat /conf/uuid.conf)"
 424
 425         for try_uuid_file in "${path}/.disk/live-uuid"*
 426         do
 427                 [ -e "${try_uuid_file}" ] || continue
 428
 429                 try_uuid="$(cat "${try_uuid_file}")"
 430
 431                 if [ "${uuid}" = "${try_uuid}" ]
 432                 then
 433                         return 0
 434                 fi
 435         done
 436
 437         return 1
 438 }
 439
 440 get_backing_device ()
 441 {
 442         case "${1}" in
 443                 *.squashfs|*.ext2|*.ext3|*.ext4|*.jffs2)
 444                         echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
 445                         ;;
 446
 447                 *.dir)
 448                         echo "directory"
 449                         ;;
 450
 451                 *)
 452                         panic "Unrecognized live filesystem: ${1}"
 453                         ;;
 454         esac
 455 }
 456
 457 match_files_in_dir ()
 458 {
 459         # Does any files match pattern ${1} ?
 460         local pattern="${1}"
 461
 462         if [ "$(echo ${pattern})" != "${pattern}" ]
 463         then
 464                 return 0
 465         fi
 466
 467         return 1
 468 }
 469
 470 mount_images_in_directory ()
 471 {
 472         directory="${1}"
 473         rootmnt="${2}"
 474         mac="${3}"
 475
 476
 477         if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
 478                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
 479                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
 480                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext4" ||
 481                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
 482                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
 483         then
 484                 [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
 485                 setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
 486         else
 487                 panic "No supported filesystem images found at /${LIVE_MEDIA_PATH}."
 488         fi
 489 }
 490
 491 is_nice_device ()
 492 {
 493         sysfs_path="${1#/sys}"
 494
 495         if [ -e /lib/udev/path_id ]
 496         then
 497                 # squeeze
 498                 PATH_ID="/lib/udev/path_id"
 499         else
 500                 # wheezy/sid (udev >= 174)
 501                 PATH_ID="/sbin/udevadm test-builtin path_id"
 502         fi
 503
 504         if "${PATH_ID}" "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-[^-]*-(ide|sas|scsi|usb|virtio)|platform-sata_mv|platform-orion-ehci|platform-mmc|platform-mxsdhci)"
 505         then
 506                 return 0
 507         elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
 508         then
 509                 return 0
 510         elif echo ${sysfs_path} | grep -q "^/block/dm-"
 511         then
 512                 return 0
 513         elif echo ${sysfs_path} | grep -q "^/block/mtdblock"
 514         then
 515                 return 0
 516         fi
 517
 518         return 1
 519 }
 520
 521 copy_live_to ()
 522 {
 523         copyfrom="${1}"
 524         copytodev="${2}"
 525         copyto="${copyfrom}_swap"
 526
 527         if [ -z "${MODULETORAM}" ]
 528         then
 529                 size=$(fs_size "" ${copyfrom}/${LIVE_MEDIA_PATH} "used")
 530         else
 531                 MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
 532
 533                 if [ -f "${MODULETORAMFILE}" ]
 534                 then
 535                         size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
 536                 else
 537                         log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
 538                         return 1
 539                 fi
 540         fi
 541
 542         if [ "${copytodev}" = "ram" ]
 543         then
 544                 # copying to ram:
 545                 freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
 546                 mount_options="-o size=${size}k"
 547                 free_string="memory"
 548                 fstype="tmpfs"
 549                 dev="/dev/shm"
 550         else
 551                 # it should be a writable block device
 552                 if [ -b "${copytodev}" ]
 553                 then
 554                         dev="${copytodev}"
 555                         free_string="space"
 556                         fstype=$(get_fstype "${dev}")
 557                         freespace=$(fs_size "${dev}")
 558                 else
 559                         log_warning_msg "${copytodev} is not a block device."
 560                         return 1
 561                 fi
 562         fi
 563
 564         if [ "${freespace}" -lt "${size}" ]
 565         then
 566                 log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
 567                 return 1
 568         fi
 569
 570         # Custom ramdisk size
 571         if [ -z "${mount_options}" ] && [ -n "${ramdisk_size}" ]
 572         then
 573                 # FIXME: should check for wrong values
 574                 mount_options="-o size=${ramdisk_size}"
 575         fi
 576
 577         # begin copying (or uncompressing)
 578         mkdir "${copyto}"
 579         log_begin_msg "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
 580         mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 581
 582         if [ "${extension}" = "tgz" ]
 583         then
 584                 cd "${copyto}"
 585                 tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 586                 rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 587                 mount -r -o move "${copyto}" "${rootmnt}"
 588                 cd "${OLDPWD}"
 589         else
 590                 if [ -n "${MODULETORAMFILE}" ]
 591                 then
 592                         if [ -x /bin/rsync ]
 593                         then
 594                                 echo " * Copying $MODULETORAMFILE to RAM" 1>/dev/console
 595                                 rsync -a --progress ${MODULETORAMFILE} ${copyto} 1>/dev/console # copy only the filesystem module
 596                         else
 597                                 cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
 598                         fi
 599                 else
 600                         if [ -x /bin/rsync ]
 601                         then
 602                                 echo " * Copying whole medium to RAM" 1>/dev/console
 603                                 rsync -a --progress ${copyfrom}/* ${copyto} 1>/dev/console  # "cp -a" from busybox also copies hidden files
 604                         else
 605                                 mkdir -p ${copyto}/${LIVE_MEDIA_PATH}
 606                                 cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/* ${copyto}/${LIVE_MEDIA_PATH}
 607                                 if [ -e ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ]
 608                                 then
 609                                         cp -a ${copyfrom}/${LIVE_MEDIA_PATH}/.disk ${copyto}
 610                                 fi
 611                         fi
 612                 fi
 613
 614                 umount ${copyfrom}
 615                 mount -r -o move ${copyto} ${copyfrom}
 616         fi
 617
 618         rmdir ${copyto}
 619         return 0
 620 }
 621
 622 do_netsetup ()
 623 {
 624         modprobe -q af_packet # For DHCP
 625
 626         udevadm trigger
 627         udevadm settle
 628
 629         [ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
 630         echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
 631
 632         if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && \
 633            [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
 634         then
 635
 636
 637         # support for Syslinux IPAPPEND parameter
 638         # it sets the BOOTIF variable on the kernel parameter
 639
 640         if [ -n "${BOOTIF}" ]
 641         then
 642                 # pxelinux sets BOOTIF to a value based on the mac address of the
 643                 # network card used to PXE boot, so use this value for DEVICE rather
 644                 # than a hard-coded device name from initramfs.conf. this facilitates
 645                 # network booting when machines may have multiple network cards.
 646                 # pxelinux sets BOOTIF to 01-$mac_address
 647
 648                 # strip off the leading "01-", which isn't part of the mac
 649                 # address
 650                 temp_mac=${BOOTIF#*-}
 651
 652                 # convert to typical mac address format by replacing "-" with ":"
 653                 bootif_mac=""
 654                 IFS='-'
 655                 for x in $temp_mac
 656                 do
 657                         if [ -z "$bootif_mac" ]
 658                         then
 659                                 bootif_mac="$x"
 660                         else
 661                                 bootif_mac="$bootif_mac:$x"
 662                         fi
 663                 done
 664                 unset IFS
 665
 666                 # look for devices with matching mac address, and set DEVICE to
 667                 # appropriate value if match is found.
 668
 669                 for device in /sys/class/net/*
 670                 do
 671                         if [ -f "$device/address" ]
 672                         then
 673                                 current_mac=$(cat "$device/address")
 674
 675                                 if [ "$bootif_mac" = "$current_mac" ]
 676                                 then
 677                                         DEVICE=${device##*/}
 678                                         break
 679                                 fi
 680                         fi
 681                 done
 682         fi
 683
 684         # if ethdevice was not specified on the kernel command line
 685         # make sure we try to get a working network configuration
 686         # for *every* present network device (except for loopback of course)
 687         if [ -z "$ETHDEVICE" ] ; then
 688                 echo "If you want to boot from a specific device use bootoption ethdevice=..."
 689                 for device in /sys/class/net/*; do
 690                         dev=${device##*/} ;
 691                         if [ "$dev" != "lo" ] ; then
 692                                 ETHDEVICE="$ETHDEVICE $dev"
 693                         fi
 694                 done
 695         fi
 696
 697         # split args of ethdevice=eth0,eth1 into "eth0 eth1"
 698         for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
 699                 devlist="$devlist $device"
 700         done
 701
 702         # this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
 703         # an endless loop; iff execution fails give it two further tries, that's
 704         # why we use '$devlist $devlist $devlist' for the other for loop
 705         for dev in $devlist $devlist $devlist ; do
 706                 echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
 707                 ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config &
 708                 jobid=$!
 709                 sleep "$ETHDEV_TIMEOUT" ; sleep 1
 710                 if [ -r /proc/"$jobid"/status ] ; then
 711                         echo "Killing job $jobid for device $dev as ipconfig ran into recursion..."
 712                         kill -9 $jobid
 713                 fi
 714
 715                 # if configuration of device worked we should have an assigned
 716                 # IP address, iff so let's use the according as $DEVICE for later usage
 717                 # simple and primitive approach which seems to work fine
 718                 if ifconfig $dev | grep -q 'inet.*addr:' ; then
 719                         export DEVICE="$dev"
 720                         break
 721                 fi
 722         done
 723
 724         else
 725                 for interface in ${DEVICE}; do
 726                         ipconfig -t "$ETHDEV_TIMEOUT" ${interface} | tee /netboot-${interface}.config
 727                         [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
 728                         if [ "$IPV4ADDR" != "0.0.0.0" ]
 729                         then
 730                                 break
 731                         fi
 732                 done
 733         fi
 734
 735         for interface in ${DEVICE}; do
 736                 # source relevant ipconfig output
 737                 OLDHOSTNAME=${HOSTNAME}
 738                 [ -e /tmp/net-${interface}.conf ] && . /tmp/net-${interface}.conf
 739                 [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
 740                 export HOSTNAME
 741
 742                 if [ -n "${interface}" ]
 743                 then
 744                         HWADDR="$(cat /sys/class/net/${interface}/address)"
 745                 fi
 746
 747                 if [ ! -e "/etc/resolv.conf" ]
 748                 then
 749                         echo "Creating /etc/resolv.conf"
 750
 751                         if [ -n "${DNSDOMAIN}" ]
 752                         then
 753                                 echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
 754                                 echo "search ${DNSDOMAIN}" >> /etc/resolv.conf
 755                         fi
 756
 757                         for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
 758                         do
 759                                 if [ -n "$i" ] && [ "$i" != 0.0.0.0 ]
 760                                 then
 761                                         echo "nameserver $i" >> /etc/resolv.conf
 762                                 fi
 763                         done
 764                 fi
 765
 766                 # Check if we have a network device at all
 767                 if ! ls /sys/class/net/"$interface" > /dev/null 2>&1 && \
 768                    ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
 769                    ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
 770                    ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
 771                    ! ls /sys/class/net/ra0 > /dev/null 2>&1
 772                 then
 773                         panic "No supported network device found, maybe a non-mainline driver is required."
 774                 fi
 775         done
 776 }
 777
 778 do_netmount()
 779 {
 780         do_netsetup
 781
 782         if [ "${NFSROOT}" = "auto" ]
 783         then
 784                 NFSROOT=${ROOTSERVER}:${ROOTPATH}
 785         fi
 786
 787         rc=1
 788
 789         if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
 790         then
 791                 do_httpmount
 792                 return $?
 793         fi
 794
 795         if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
 796         then
 797                 NFSROOT=${ROOTSERVER}:${NFSROOT}
 798         fi
 799
 800         log_begin_msg "Trying netboot from ${NFSROOT}"
 801
 802         if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
 803         then
 804                 rc=0
 805         elif do_nfsmount
 806         then
 807                 NETBOOT="nfs"
 808                 export NETBOOT
 809                 rc=0
 810         fi
 811
 812         log_end_msg
 813         return ${rc}
 814 }
 815
 816 do_iscsi()
 817 {
 818         do_netsetup
 819         #modprobe ib_iser
 820         modprobe iscsi_tcp
 821         local debugopt=""
 822         [ "${DEBUG}" == "Yes" ] && debugopt="-d 8"
 823         #FIXME this name is supposed to be unique - some date + ifconfig hash?
 824         ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
 825         export ISCSI_INITIATORNAME
 826         if [ -n "${ISCSI_SERVER}" ] ; then
 827                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
 828         else
 829                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
 830         fi
 831         if [ $? != 0 ]
 832         then
 833                 panic "Failed to log into iscsi target"
 834         fi
 835         local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
 836                             /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
 837         if [ -n "${host}" ]
 838         then
 839                 local devices=""
 840                 local i=0
 841                 while [ -z "${devices}" -a $i -lt 60 ]
 842                 do
 843                         sleep 1
 844                         devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
 845                                          /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
 846                         i=$(expr $i + 1)
 847                         echo -ne $i\\r
 848                 done
 849                 for dev in $devices
 850                 do
 851                         if check_dev "null" "/dev/$dev"
 852                         then
 853                                 NETBOOT="iscsi"
 854                                 export NETBOOT
 855                                 return 0;
 856                         fi
 857                 done
 858                 panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
 859         else
 860                 panic "Failed to locate iSCSI host in /sys"
 861         fi
 862 }
 863
 864 do_httpmount ()
 865 {
 866         rc=1
 867
 868         for webfile in HTTPFS FTPFS FETCH
 869         do
 870                 local url="$(eval echo \"\$\{${webfile}\}\")"
 871                 local extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
 872
 873                 if [ -n "$url" ]
 874                 then
 875                         case "${extension}" in
 876                                 iso|squashfs|tgz|tar)
 877                                         if [ "${extension}" = "iso" ]
 878                                         then
 879                                                 mkdir -p "${alt_mountpoint}"
 880                                                 dest="${alt_mountpoint}"
 881                                         else
 882                                                 local dest="${mountpoint}/${LIVE_MEDIA_PATH}"
 883                                                 mount -t ramfs ram "${mountpoint}"
 884                                                 mkdir -p "${dest}"
 885                                         fi
 886                                         if [ "${webfile}" = "FETCH" ]
 887                                         then
 888                                                 case "$url" in
 889                                                         tftp*)
 890                                                                 ip="$(dirname $url | sed -e 's|tftp://||g' -e 's|/.*$||g')"
 891                                                                 rfile="$(echo $url | sed -e "s|tftp://$ip||g")"
 892                                                                 lfile="$(basename $url)"
 893                                                                 log_begin_msg "Trying tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip"
 894                                                                 tftp -g -b 10240 -r $rfile -l ${dest}/$lfile $ip
 895                                                         ;;
 896
 897                                                         *)
 898                                                                 log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
 899                                                                 wget "${url}" -O "${dest}/$(basename ${url})"
 900                                                                 ;;
 901                                                 esac
 902                                         else
 903                                                 log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
 904                                                 if [ "${webfile}" = "FTPFS" ]
 905                                                 then
 906                                                         FUSE_MOUNT="curlftpfs"
 907                                                         url="$(dirname ${url})"
 908                                                 else
 909                                                         FUSE_MOUNT="httpfs"
 910                                                 fi
 911                                                 modprobe fuse
 912                                                 $FUSE_MOUNT "${url}" "${dest}"
 913                                                 ROOT_PID="$(minips h -C "$FUSE_MOUNT" | { read x y ; echo "$x" ; } )"
 914                                         fi
 915                                         [ ${?} -eq 0 ] && rc=0
 916                                         [ "${extension}" = "tgz" ] && live_dest="ram"
 917                                         if [ "${extension}" = "iso" ]
 918                                         then
 919                                                 isoloop=$(setup_loop "${dest}/$(basename "${url}")" "loop" "/sys/block/loop*" "" '')
 920                                                 mount -t iso9660 "${isoloop}" "${mountpoint}"
 921                                                 rc=${?}
 922                                         fi
 923                                         break
 924                                         ;;
 925
 926                                 *)
 927                                         log_begin_msg "Unrecognized archive extension for ${url}"
 928                                         ;;
 929                         esac
 930                 fi
 931         done
 932
 933         if [ ${rc} != 0 ]
 934         then
 935                 if [ -d "${alt_mountpoint}" ]
 936                 then
 937                         umount "${alt_mountpoint}"
 938                         rmdir "${alt_mountpoint}"
 939                 fi
 940                 umount "${mountpoint}"
 941         elif [ "${webfile}"  != "FETCH" ] ; then
 942                 NETBOOT="${webfile}"
 943                 export NETBOOT
 944         fi
 945
 946         return ${rc}
 947 }
 948
 949 do_nfsmount ()
 950 {
 951         rc=1
 952
 953         modprobe -q nfs
 954
 955         if [ -z "${NFSOPTS}" ]
 956         then
 957                 NFSOPTS=""
 958         fi
 959
 960         log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
 961
 962         # FIXME: This while loop is an ugly HACK round an nfs bug
 963         i=0
 964         while [ "$i" -lt 60 ]
 965         do
 966                 nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
 967                 sleep 1
 968                 i="$(($i + 1))"
 969         done
 970
 971         return ${rc}
 972 }
 973
 974 do_cifsmount ()
 975 {
 976         rc=1
 977
 978         if [ -x "/sbin/mount.cifs" ]
 979         then
 980                 if [ -z "${NFSOPTS}" ]
 981                 then
 982                         CIFSOPTS="-ouser=root,password="
 983                 else
 984                         CIFSOPTS="${NFSOPTS}"
 985                 fi
 986
 987                 log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
 988                 modprobe -q cifs
 989
 990                 if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
 991                 then
 992                         rc=0
 993                 fi
 994         fi
 995
 996         return ${rc}
 997 }
 998
 999 do_snap_copy ()
1000 {
1001         fromdev="${1}"
1002         todir="${2}"
1003         snap_type="${3}"
1004         size=$(fs_size "${fromdev}" "" "used")
1005
1006         if [ -b "${fromdev}" ]
1007         then
1008                 log_success_msg "Copying snapshot ${fromdev} to ${todir}..."
1009
1010                 # look for free mem
1011                 if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
1012                 then
1013                         todev=$(awk -v pat="$(base_path ${todir})" '$2 == pat { print $1 }' /proc/mounts)
1014                         freespace=$(df -k | awk '/'${todev}'/{print $4}')
1015                 else
1016                         freespace=$(awk '/^MemFree:/{f=$2} /^Cached:/{c=$2} END{print f+c}' /proc/meminfo)
1017                 fi
1018
1019                 tomount="/mnt/tmpsnap"
1020
1021                 if [ ! -d "${tomount}" ]
1022                 then
1023                         mkdir -p "${tomount}"
1024                 fi
1025
1026                 fstype=$(get_fstype "${fromdev}")
1027
1028                 if [ -n "${fstype}" ]
1029                 then
1030                         # Copying stuff...
1031                         mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
1032                         cp -a "${tomount}"/* ${todir}
1033                         umount "${tomount}"
1034                 else
1035                         log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
1036                 fi
1037
1038                 rmdir "${tomount}"
1039
1040                 if echo ${fromdev} | grep -qs loop
1041                 then
1042                         losetup -d "${fromdev}"
1043                 fi
1044
1045                 return 0
1046         else
1047                 log_warning_msg "Unable to find the snapshot ${snap_type} medium"
1048                 return 1
1049         fi
1050 }
1051
1052 find_snap ()
1053 {
1054         # Look for ${snap_label}.* in block devices
1055         snap_label="${1}"
1056         black_listed_devices="${2}"
1057         white_listed_devices="${3}"
1058
1059         if echo ${PERSISTENT_STORAGE} | grep -qw file
1060         then
1061                 # search for image files
1062                 snapdata=$(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}")
1063         fi
1064
1065         if echo ${PERSISTENT_STORAGE} | grep -qw filesystem && [ -z "${snapdata}" ]
1066         then
1067                 snapdata=$(find_cow_device "${snap_label}" "${black_listed_devices}" "${white_listed_devices}")
1068         fi
1069         echo "${snapdata}"
1070 }
1071
1072 try_snap ()
1073 {
1074         # copy the contents of previously found snapshot to ${snap_mount}
1075         # and remember the device and filename for resync on exit in live-boot.init
1076
1077         snapdata="${1}"
1078         snap_mount="${2}"
1079         snap_type="${3}"
1080         snap_relpath="${4}"
1081
1082         if [ -z "${snap_relpath}" ]
1083         then
1084                 # root snapshot, default usage
1085                 snap_relpath="/"
1086         else
1087                 # relative snapshot (actually used just for "/home" snapshots)
1088                 snap_mount="${2}${snap_relpath}"
1089         fi
1090
1091         if [ -n "${snapdata}" ] && [ ! -b "${snapdata}" ]
1092         then
1093                 log_success_msg "found snapshot: ${snapdata}"
1094                 snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
1095                 snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
1096                 snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
1097
1098                 if ! try_mount "${snapdev}" "${snapback}" "ro"
1099                 then
1100                         break
1101                 fi
1102
1103                 RES="0"
1104
1105                 if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|ext4\|jffs2\)'
1106                 then
1107                         # squashfs, jffs2 or ext2/ext3/ext4 snapshot
1108                         dev=$(get_backing_device "${snapback}/${snapfile}")
1109
1110                         do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1111                         RES="$?"
1112                 else
1113                         # cpio.gz snapshot
1114
1115                         # Unfortunately klibc's cpio is incompatible with the
1116                         # rest of the world; everything else requires -u -d,
1117                         # while klibc doesn't implement them. Try to detect
1118                         # whether it's in use.
1119                         cpiopath="$(which cpio)" || true
1120                         if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath"
1121                         then
1122                                 cpioargs=
1123                         else
1124                                 cpioargs='--unconditional --make-directories'
1125                         fi
1126
1127                         if [ -s "${snapback}/${snapfile}" ]
1128                         then
1129                                 BEFOREDIR="$(pwd)"
1130                                 cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null
1131                                 RES="$?"
1132                                 cd "${BEFOREDIR}"
1133                         else
1134                                 log_warning_msg "${snapback}/${snapfile} is empty, adding it for sync on reboot."
1135                                 RES="0"
1136                         fi
1137
1138                         if [ "${RES}" != "0" ]
1139                         then
1140                                 log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | $cpiopath $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
1141                         fi
1142                 fi
1143
1144                 umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
1145
1146                 if [ "${RES}" != "0" ]
1147                 then
1148                         log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
1149                 fi
1150
1151         elif [ -b "${snapdata}" ]
1152         then
1153                 # Try to find if it could be a snapshot partition
1154                 dev="${snapdata}"
1155                 log_success_msg "found snapshot ${snap_type} device on ${dev}"
1156                 if echo "${dev}" | grep -qs loop
1157                 then
1158                         # strange things happens, user confused?
1159                         snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
1160                         snapfile=$(basename ${snaploop})
1161                         snapdev=$(awk -v pat="$( dirname ${snaploop})" '$2 == pat { print $1 }' /proc/mounts)
1162                 else
1163                         snapdev="${dev}"
1164                 fi
1165
1166                 if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
1167                 then
1168                         log_warning_msg "Impossible to include the ${snap_type} Snapshot (i)"
1169                         return 1
1170                 else
1171                         if [ -n "${snapfile}" ]
1172                         then
1173                                 # it was a loop device, user confused
1174                                 umount ${snapdev}
1175                         fi
1176                 fi
1177         else
1178                 log_warning_msg "Impossible to include the ${snap_type} Snapshot (o)"
1179                 return 1
1180         fi
1181
1182         echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
1183         return 0
1184 }
1185
1186 setup_unionfs ()
1187 {
1188         image_directory="${1}"
1189         rootmnt="${2}"
1190         addimage_directory="${3}"
1191
1192         case ${UNIONTYPE} in
1193                 aufs|unionfs)
1194                         modprobe -q -b ${UNIONTYPE}
1195
1196                         if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ]
1197                         then
1198                                 echo "${UNIONTYPE} not available, falling back to unionfs-fuse."
1199                                 echo "This might be really slow."
1200
1201                                 UNIONTYPE="unionfs-fuse"
1202                         fi
1203                         ;;
1204         esac
1205
1206         if [ "${UNIONTYPE}" = unionfs-fuse ]
1207         then
1208                 modprobe fuse
1209         fi
1210
1211         # run-init can't deal with images in a subdir, but we're going to
1212         # move all of these away before it runs anyway.  No, we're not,
1213         # put them in / since move-mounting them into / breaks mono and
1214         # some other apps.
1215
1216         croot="/"
1217
1218         # Let's just mount the read-only file systems first
1219         rofslist=""
1220
1221         if [ "${UNIONTYPE}" = "aufs" ]
1222         then
1223                 roopt="rr+wh"
1224                 noxino_opt="noxino,"
1225         elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
1226         then
1227                 roopt="RO"
1228         else
1229                 roopt="ro"
1230         fi
1231
1232         if [ -z "${PLAIN_ROOT}" ]
1233         then
1234                 # Read image names from ${MODULE}.module if it exists
1235                 if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
1236                 then
1237                         for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
1238                         do
1239                                 image_string="${image_string} ${image_directory}/${IMAGE}"
1240                         done
1241                 elif [ -e "${image_directory}/${MODULE}.module" ]
1242                 then
1243                         for IMAGE in $(cat ${image_directory}/${MODULE}.module)
1244                         do
1245                                 image_string="${image_string} ${image_directory}/${IMAGE}"
1246                         done
1247                 else
1248                         # ${MODULE}.module does not exist, create a list of images
1249                         for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1250                         do
1251                                 for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
1252                                 do
1253                                         if [ -e "${IMAGE}" ]
1254                                         then
1255                                                 image_string="${image_string} ${IMAGE}"
1256                                         fi
1257                                 done
1258                         done
1259
1260                         if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
1261                         then
1262                                 for FILESYSTEM in squashfs ext2 ext3 ext4 xfs jffs2 dir
1263                                 do
1264                                         for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
1265                                         do
1266                                                 if [ -e "${IMAGE}" ]
1267                                                 then
1268                                                         image_string="${image_string} ${IMAGE}"
1269                                                 fi
1270                                         done
1271                                 done
1272                         fi
1273
1274                         # Now sort the list
1275                         image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
1276                 fi
1277
1278                 [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
1279
1280                 mkdir -p "${croot}"
1281
1282                 for image in ${image_string}
1283                 do
1284                         imagename=$(basename "${image}")
1285
1286                         export image devname
1287                         maybe_break live-realpremount
1288                         log_begin_msg "Running /scripts/live-realpremount"
1289                         run_scripts /scripts/live-realpremount
1290                         log_end_msg
1291
1292                         if [ -d "${image}" ]
1293                         then
1294                                 # it is a plain directory: do nothing
1295                                 rofslist="${image} ${rofslist}"
1296                         elif [ -f "${image}" ]
1297                         then
1298                                 if losetup --help 2>&1 | grep -q -- "-r\b"
1299                                 then
1300                                         backdev=$(get_backing_device "${image}" "-r")
1301                                 else
1302                                         backdev=$(get_backing_device "${image}")
1303                                 fi
1304                                 fstype=$(get_fstype "${backdev}")
1305
1306                                 if [ "${fstype}" = "unknown" ]
1307                                 then
1308                                         panic "Unknown file system type on ${backdev} (${image})"
1309                                 fi
1310
1311                                 if [ -z "${fstype}" ]
1312                                 then
1313                                         fstype="${imagename##*.}"
1314                                         log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
1315                                 fi
1316
1317                                 if [ "${UNIONTYPE}" != "unionmount" ]
1318                                 then
1319                                         mpoint="${croot}/${imagename}"
1320                                         rofslist="${mpoint} ${rofslist}"
1321                                 else
1322                                         mpoint="${rootmnt}"
1323                                         rofslist="${rootmnt} ${rofslist}"
1324                                 fi
1325                                 mkdir -p "${mpoint}"
1326                                 log_begin_msg "Mounting \"${image}\" on \"${mpoint}\" via \"${backdev}\""
1327                                 mount -t "${fstype}" -o ro,noatime "${backdev}" "${mpoint}" || panic "Can not mount ${backdev} (${image}) on ${mpoint}"
1328                                 log_end_msg
1329                         fi
1330                 done
1331         else
1332                 # we have a plain root system
1333                 mkdir -p "${croot}/filesystem"
1334                 log_begin_msg "Mounting \"${image_directory}\" on \"${croot}/filesystem\""
1335                 mount -t $(get_fstype "${image_directory}") -o ro,noatime "${image_directory}" "${croot}/filesystem" || \
1336                         panic "Can not mount ${image_directory} on ${croot}/filesystem" && \
1337                         rofslist="${croot}/filesystem ${rofslist}"
1338                 # probably broken:
1339                 mount -o bind ${croot}/filesystem $mountpoint
1340                 log_end_msg
1341         fi
1342
1343         mkdir -p /cow
1344
1345         # Looking for "${root_persistence}" device or file
1346         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1347         then
1348
1349                 if [ -z "${QUICKUSBMODULES}" ]
1350                 then
1351                         # Load USB modules
1352                         num_block=$(ls -l /sys/block | wc -l)
1353                         for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
1354                         do
1355                                 modprobe -q -b ${module}
1356                         done
1357
1358                         udevadm trigger
1359                         udevadm settle
1360
1361                         # For some reason, udevsettle does not block in this scenario,
1362                         # so we sleep for a little while.
1363                         #
1364                         # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
1365                         for timeout in 5 4 3 2 1
1366                         do
1367                                 sleep 1
1368
1369                                 if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
1370                                 then
1371                                         break
1372                                 fi
1373                         done
1374                 fi
1375
1376                 case "${PERSISTENT_MEDIA}" in
1377                         removable)
1378                                 whitelistdev="$(removable_dev)"
1379                                 ;;
1380                         removable-usb)
1381                                 whitelistdev="$(removable_usb_dev)"
1382                                 ;;
1383                         *)
1384                                 whitelistdev=""
1385                                 ;;
1386                 esac
1387
1388                 # search for label and files (this could be hugely optimized)
1389                 cowprobe=$(find_cow_device "${root_persistence}" "${blacklistdev}" "${whitelistdev}")
1390                 if [ -b "${cowprobe}" ]
1391                 then
1392                         # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots
1393                         # makes sense to have both persistence for /cow and /home mounted, maybe also with
1394                         # snapshots to be sure to really store some e.g key config files,
1395                         # but not on the same media
1396                         blacklistdev="${cowprobe}"
1397                         PERSISTENCE_IS_ON="1"
1398                         export PERSISTENCE_IS_ON
1399                 fi
1400                 # homecow just mount something on /home, this should be generalized some way
1401                 homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}" "${whitelistdev}")
1402                 if [ -b "${homecow}" ]
1403                 then
1404                         PERSISTENCE_IS_ON="1"
1405                         export PERSISTENCE_IS_ON
1406                 fi
1407                 root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}" "${whitelistdev}")
1408                 # This second type should be removed when snapshot will get smarter,
1409                 # hence when "/etc/live-snapshot*list" will be supported also by
1410                 # ext2|ext3|ext4|jffs2 snapshot types.
1411                 home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}" "${whitelistdev}")
1412
1413                 if [ -b "${cowprobe}" ]
1414                 then
1415                         cowdevice=${cowprobe}
1416                         cow_fstype=$(get_fstype "${cowprobe}")
1417                         cow_mountopt="rw,noatime"
1418
1419                         if [ "${FORCEPERSISTENTFSCK}" = "Yes" ]
1420                         then
1421                                 fsck -y ${cowdevice}
1422                         fi
1423                 else
1424                         log_warning_msg "Unable to find the persistent medium"
1425                         cowdevice="tmpfs"
1426                         cow_fstype="tmpfs"
1427                         cow_mountopt="rw,noatime,mode=755"
1428                 fi
1429         elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
1430         then
1431                 # check if there are any nfs options
1432                 if echo ${NFS_COW}|grep -q ','
1433                 then
1434                         nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
1435                         nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
1436                 else
1437                         nfs_cow_opts="-o nolock"
1438                         nfs_cow=${NFS_COW}
1439                 fi
1440                 mac="$(get_mac)"
1441                 if [ -n "${mac}" ]
1442                 then
1443                         cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
1444                         cow_fstype="nfs"
1445                 else
1446                         panic "unable to determine mac address"
1447                 fi
1448         else
1449                 cowdevice="tmpfs"
1450                 cow_fstype="tmpfs"
1451                 cow_mountopt="rw,noatime,mode=755"
1452         fi
1453
1454         if [ "${UNIONTYPE}" != "unionmount" ]
1455         then
1456
1457                 if [ "${cow_fstype}" = "nfs" ]
1458                 then
1459                         log_begin_msg \
1460                                 "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
1461                         nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
1462                                 panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
1463                 else
1464                         mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
1465                                 panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
1466                 fi
1467         fi
1468
1469         rofscount=$(echo ${rofslist} |wc -w)
1470
1471         if [ ${rofscount} -ne 1 ]
1472         then
1473                 panic "only one RO file system supported with exposedroot: ${rofslist}"
1474         fi
1475         rofs=${rofslist%% }
1476
1477         if [ -n "${EXPOSED_ROOT}" ]
1478         then
1479                 mount --bind ${rofs} ${rootmnt} || \
1480                         panic "bind mount of ${rofs} failed"
1481
1482                 if [ -z "${SKIP_UNION_MOUNTS}" ]
1483                 then
1484                         cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool /home /var/lib/live'
1485                 else
1486                         cow_dirs=''
1487                 fi
1488         else
1489                 cow_dirs="/"
1490         fi
1491
1492         if [ "${cow_fstype}" != "tmpfs" ] && [ "${cow_dirs}" != "/" ] && [ "${UNIONTYPE}" = "unionmount" ]
1493         then
1494                 true # FIXME: Maybe it does, I don't really know.
1495                 #panic "unionmount does not support subunions (${cow_dirs})."
1496         fi
1497
1498         unionmountopts=""
1499         unionmountpoint=""
1500
1501         for dir in ${cow_dirs}; do
1502                 mkdir -p /cow${dir}
1503
1504                 unionmountpoint="${rootmnt}${dir}"
1505                 unionrw="/cow${dir}"
1506                 unionro="${rofs}${dir}"
1507                 # We don't handle spaces and other junk gracefully here, hopefully not needed.
1508                 case "${UNIONTYPE}" in
1509                         unionfs-fuse)
1510                                 unionmountopts="-o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid"
1511                                 unionmountopts="${unionmountopts} ${unionrw}=RW:${unionro}=RO"
1512                                 ( sysctl -w fs.file-max=391524 ; ulimit -HSn 16384
1513                                 unionfs-fuse ${unionmountopts} "${unionmountpoint}" ) && \
1514                                 ( mkdir -p /run/sendsigs.omit.d
1515                                 pidof unionfs-fuse >> /run/sendsigs.omit.d/unionfs-fuse || true )
1516                                 ;;
1517
1518                         unionmount)
1519                                 unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
1520                                 mount_full $unionmountopts "${unionmountpoint}"
1521                                 ;;
1522
1523
1524                         *)
1525                                 unionmountopts="-o noatime,${noxino_opt}dirs=${unionrw}=rw:${unionro}=${roopt}"
1526                                 mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
1527                                 ;;
1528                 esac || \
1529                         panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
1530         done
1531
1532         # Correct the permissions of /:
1533         chmod 0755 "${rootmnt}"
1534
1535         # tmpfs file systems
1536         touch /etc/fstab
1537         mkdir -p "${rootmnt}/live"
1538         mount -t tmpfs tmpfs ${rootmnt}/live
1539
1540         # Adding other custom mounts
1541         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1542         then
1543                 # directly mount /home
1544                 # FIXME: add a custom mounts configurable system
1545
1546                 if [ -b "${homecow}" ]
1547                 then
1548                         mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
1549                         export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
1550                 else
1551                         log_warning_msg "Unable to find the persistent home medium"
1552                 fi
1553
1554                 # Look for other snapshots to copy in
1555                 try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
1556                 # This second type should be removed when snapshot grow smarter
1557                 try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
1558         fi
1559
1560         if [ -n "${SHOWMOUNTS}" ]
1561         then
1562                 for d in ${rofslist}
1563                 do
1564                         mkdir -p "${rootmnt}/live/${d##*/}"
1565
1566                         case d in
1567                                 *.dir)
1568                                         # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1569                                         ;;
1570
1571                                 *)
1572                                         case "${UNIONTYPE}" in
1573                                                 unionfs-fuse)
1574                                                         mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1575                                                         ;;
1576
1577                                                 *)
1578                                                         mount -o move "${d}" "${rootmnt}/live/${d##*/}"
1579                                                         ;;
1580                                         esac
1581                                         ;;
1582                         esac
1583                 done
1584         fi
1585
1586         # shows cow fs on /cow for use by live-snapshot
1587         mkdir -p "${rootmnt}/live/cow"
1588         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 ${rootmnt}/live/cow"
1589 }
1590
1591 check_dev ()
1592 {
1593         sysdev="${1}"
1594         devname="${2}"
1595         skip_uuid_check="${3}"
1596
1597         # support for fromiso=.../isofrom=....
1598         if [ -n "$FROMISO" ]
1599         then
1600                 ISO_DEVICE=$(dirname $FROMISO)
1601                 if ! [ -b $ISO_DEVICE ]
1602                 then
1603                         # to support unusual device names like /dev/cciss/c0d0p1
1604                         # as well we have to identify the block device name, let's
1605                         # do that for up to 15 levels
1606                         i=15
1607                         while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
1608                         do
1609                                 ISO_DEVICE=$(dirname ${ISO_DEVICE})
1610                                 [ -b "$ISO_DEVICE" ] && break
1611                                 i=$(($i -1))
1612                         done
1613                 fi
1614
1615                 if [ "$ISO_DEVICE" = "/" ]
1616                 then
1617                         echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live-boot.log
1618                 else
1619                         fs_type=$(get_fstype "${ISO_DEVICE}")
1620                         if is_supported_fs ${fs_type}
1621                         then
1622                                 mkdir /isofrom
1623                                 mount -t $fs_type "$ISO_DEVICE" /isofrom
1624                                 ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
1625                                 loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
1626                                 devname="${loopdevname}"
1627                         else
1628                                 echo "Warning: unable to mount $ISO_DEVICE." >>/live-boot.log
1629                         fi
1630                 fi
1631         fi
1632
1633         if [ -z "${devname}" ]
1634         then
1635                 devname=$(sys2dev "${sysdev}")
1636         fi
1637
1638         if [ -d "${devname}" ]
1639         then
1640                 mount -o bind "${devname}" $mountpoint || continue
1641
1642                 if is_live_path $mountpoint
1643                 then
1644                         echo $mountpoint
1645                         return 0
1646                 else
1647                         umount $mountpoint
1648                 fi
1649         fi
1650
1651         IFS=","
1652         for device in ${devname}
1653         do
1654                 case "$device" in
1655                         *mapper*)
1656                                 # Adding lvm support
1657                                 if [ -x /scripts/local-top/lvm2 ]
1658                                 then
1659                                         ROOT="$device" resume="" /scripts/local-top/lvm2
1660                                 fi
1661                                 ;;
1662
1663                         /dev/md*)
1664                                 # Adding raid support
1665                                 if [ -x /scripts/local-top/mdadm ]
1666                                 then
1667                                         cp /conf/conf.d/md /conf/conf.d/md.orig
1668                                         echo "MD_DEVS=$device " >> /conf/conf.d/md
1669                                         /scripts/local-top/mdadm
1670                                         mv /conf/conf.d/md.orig /conf/conf.d/md
1671                                 fi
1672                                 ;;
1673                 esac
1674         done
1675         unset IFS
1676
1677         [ -n "$device" ] && devname="$device"
1678
1679         [ -e "$devname" ] || continue
1680
1681         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1682         then
1683                 loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
1684                 devname="${loopdevname}"
1685         fi
1686
1687         fstype=$(get_fstype "${devname}")
1688
1689         if is_supported_fs ${fstype}
1690         then
1691                 devuid=$(blkid -o value -s UUID "$devname")
1692                 [ -n "$devuid" ] && grep -qs "\<$devuid\>" $tried && continue
1693                 mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
1694                 [ -n "$devuid" ] && echo "$devuid" >> $tried
1695
1696                 if is_live_path ${mountpoint} && \
1697                         ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
1698                 then
1699                         echo ${mountpoint}
1700                         return 0
1701                 else
1702                         umount ${mountpoint} 2>/dev/null
1703                 fi
1704         fi
1705
1706         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1707         then
1708                 losetup -d "${loopdevname}"
1709         fi
1710
1711         return 1
1712 }
1713
1714 find_livefs ()
1715 {
1716         timeout="${1}"
1717
1718         # don't start autodetection before timeout has expired
1719         if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
1720         then
1721                 if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
1722                 then
1723                         return 1
1724                 fi
1725         fi
1726
1727         # first look at the one specified in the command line
1728         case "${LIVE_MEDIA}" in
1729                 removable-usb)
1730                         for sysblock in $(removable_usb_dev "sys")
1731                         do
1732                                 for dev in $(subdevices "${sysblock}")
1733                                 do
1734                                         if check_dev "${dev}"
1735                                         then
1736                                                 return 0
1737                                         fi
1738                                 done
1739                         done
1740                         return 1
1741                         ;;
1742
1743                 removable)
1744                         for sysblock in $(removable_dev "sys")
1745                         do
1746                                 for dev in $(subdevices "${sysblock}")
1747                                 do
1748                                         if check_dev "${dev}"
1749                                         then
1750                                                 return 0
1751                                         fi
1752                                 done
1753                         done
1754                         return 1
1755                         ;;
1756
1757                 *)
1758                         if [ ! -z "${LIVE_MEDIA}" ]
1759                         then
1760                                 if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
1761                                 then
1762                                         return 0
1763                                 fi
1764                         fi
1765                         ;;
1766         esac
1767
1768         # or do the scan of block devices
1769         # prefer removable devices over non-removable devices, so scan them first
1770         devices_to_scan="$(removable_dev 'sys') $(non_removable_dev 'sys')"
1771
1772         for sysblock in $devices_to_scan
1773         do
1774                 devname=$(sys2dev "${sysblock}")
1775                 [ -e "$devname" ] || continue
1776                 fstype=$(get_fstype "${devname}")
1777
1778                 if /lib/udev/cdrom_id ${devname} > /dev/null
1779                 then
1780                         if check_dev "null" "${devname}"
1781                         then
1782                                 return 0
1783                         fi
1784                 elif is_nice_device "${sysblock}"
1785                 then
1786                         for dev in $(subdevices "${sysblock}")
1787                         do
1788                                 if check_dev "${dev}"
1789                                 then
1790                                         return 0
1791                                 fi
1792                         done
1793                 elif [ "${fstype}" = "squashfs" -o \
1794                         "${fstype}" = "btrfs" -o \
1795                         "${fstype}" = "ext2" -o \
1796                         "${fstype}" = "ext3" -o \
1797                         "${fstype}" = "ext4" -o \
1798                         "${fstype}" = "jffs2" ]
1799                 then
1800                         # This is an ugly hack situation, the block device has
1801                         # an image directly on it.  It's hopefully
1802                         # live-boot, so take it and run with it.
1803                         ln -s "${devname}" "${devname}.${fstype}"
1804                         echo "${devname}.${fstype}"
1805                         return 0
1806                 fi
1807         done
1808
1809         return 1
1810 }
1811
1812 integrity_check ()
1813 {
1814         media_mountpoint="${1}"
1815
1816         log_begin_msg "Checking media integrity"
1817
1818         cd ${media_mountpoint}
1819         /bin/md5sum -c md5sum.txt < /dev/tty8 > /dev/tty8
1820         RC="${?}"
1821
1822         log_end_msg
1823
1824         if [ "${RC}" -eq 0 ]
1825         then
1826                 log_success_msg "Everything ok, will reboot in 10 seconds."
1827                 sleep 10
1828                 cd /
1829                 umount ${media_mountpoint}
1830                 sync
1831                 echo u > /proc/sysrq-trigger
1832                 echo b > /proc/sysrq-trigger
1833         else
1834                 panic "Not ok, a media defect is likely, switch to VT8 for details."
1835         fi
1836 }
1837
1838 mountroot ()
1839 {
1840         if [ -x /scripts/local-top/cryptroot ]; then
1841             /scripts/local-top/cryptroot
1842         fi
1843
1844         exec 6>&1
1845         exec 7>&2
1846         exec > live-boot.log
1847         exec 2>&1
1848         tail -f live-boot.log >&7 &
1849         tailpid="${!}"
1850
1851         # Ensure 'panic' function is overridden
1852         . /scripts/live-functions
1853
1854         Arguments
1855
1856         maybe_break live-premount
1857         log_begin_msg "Running /scripts/live-premount"
1858         run_scripts /scripts/live-premount
1859         log_end_msg
1860
1861         # Needed here too because some things (*cough* udev *cough*)
1862         # changes the timeout
1863
1864         if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
1865         then
1866                 if do_netmount
1867                 then
1868                         livefs_root="${mountpoint}"
1869                 else
1870                         panic "Unable to find a live file system on the network"
1871                 fi
1872         else
1873                 if [ -n "${ISCSI_PORTAL}" ]
1874                 then
1875                         do_iscsi && livefs_root="${mountpoint}"
1876                 elif [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
1877                 then
1878                         # Do a local boot from hd
1879                         livefs_root=${ROOT}
1880                 else
1881                         if [ -x /usr/bin/memdiskfind ]
1882                         then
1883                                 MEMDISK=$(/usr/bin/memdiskfind)
1884
1885                                 if [ $? -eq 0 ]
1886                                 then
1887                                         # We found a memdisk, set up phram
1888                                         modprobe phram phram=memdisk,${MEMDISK}
1889
1890                                         # Load mtdblock, the memdisk will be /dev/mtdblock0
1891                                         modprobe mtdblock
1892                                 fi
1893                         fi
1894
1895                         # Scan local devices for the image
1896                         i=0
1897                         while [ "$i" -lt 60 ]
1898                         do
1899                                 livefs_root=$(find_livefs ${i})
1900
1901                                 if [ -n "${livefs_root}" ]
1902                                 then
1903                                         break
1904                                 fi
1905
1906                                 sleep 1
1907                                 i="$(($i + 1))"
1908                         done
1909                 fi
1910         fi
1911
1912         if [ -z "${livefs_root}" ]
1913         then
1914                 panic "Unable to find a medium containing a live file system"
1915         fi
1916
1917         if [ "${INTEGRITY_CHECK}" ]
1918         then
1919                 integrity_check "${livefs_root}"
1920         fi
1921
1922         if [ "${TORAM}" ]
1923         then
1924                 live_dest="ram"
1925         elif [ "${TODISK}" ]
1926         then
1927                 live_dest="${TODISK}"
1928         fi
1929
1930         if [ "${live_dest}" ]
1931         then
1932                 log_begin_msg "Copying live media to ${live_dest}"
1933                 copy_live_to "${livefs_root}" "${live_dest}"
1934                 log_end_msg
1935         fi
1936
1937         # if we do not unmount the ISO we can't run "fsck /dev/ice" later on
1938         # because the mountpoint is left behind in /proc/mounts, so let's get
1939         # rid of it when running from RAM
1940         if [ -n "$FROMISO" ] && [ "${TORAM}" ]
1941         then
1942           losetup -d /dev/loop0
1943           grep -q /isofrom /proc/mounts && umount /isofrom
1944         fi
1945
1946         if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
1947         then
1948                 setup_unionfs "${livefs_root}" "${rootmnt}"
1949         else
1950                 mac="$(get_mac)"
1951                 mac="$(echo ${mac} | sed 's/-//g')"
1952                 mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
1953         fi
1954
1955
1956         if [ -n "${ROOT_PID}" ] ; then
1957                 echo "${ROOT_PID}" > "${rootmnt}"/live/root.pid
1958         fi
1959
1960         log_end_msg
1961
1962         # unionfs-fuse needs /dev to be bind-mounted for the duration of
1963         # live-bottom; udev's init script will take care of things after that
1964         if [ "${UNIONTYPE}" = unionfs-fuse ]
1965         then
1966                 mount -n -o bind /dev "${rootmnt}/dev"
1967         fi
1968
1969         # Move to the new root filesystem so that programs there can get at it.
1970         if [ ! -d /root/live/image ]
1971         then
1972                 mkdir -p /root/live/image
1973                 mount --move /live/image /root/live/image
1974         fi
1975
1976         # aufs2 in kernel versions around 2.6.33 has a regression:
1977         # directories can't be accessed when read for the first the time,
1978         # causing a failure for example when accessing /var/lib/fai
1979         # when booting FAI, this simple workaround solves it
1980         ls /root/* >/dev/null 2>&1
1981
1982         # copy snapshot configuration if exists
1983         if [ -f snapshot.conf ]
1984         then
1985                 log_begin_msg "Copying snapshot.conf to ${rootmnt}/etc/live/boot.d"
1986                 if [ ! -d "${rootmnt}/etc/live/boot.d" ]
1987                 then
1988                         mkdir -p "${rootmnt}/etc/live/boot.d"
1989                 fi
1990                 cp snapshot.conf "${rootmnt}/etc/live/boot.d/"
1991                 log_end_msg
1992         fi
1993
1994         if [ -f /etc/resolv.conf ] && [ ! -s ${rootmnt}/etc/resolv.conf ]
1995         then
1996                 log_begin_msg "Copying /etc/resolv.conf to ${rootmnt}/etc/resolv.conf"
1997                 cp -v /etc/resolv.conf ${rootmnt}/etc/resolv.conf
1998                 log_end_msg
1999         fi
2000
2001         maybe_break live-bottom
2002         log_begin_msg "Running /scripts/live-bottom\n"
2003
2004         run_scripts /scripts/live-bottom
2005         log_end_msg
2006
2007         if [ "${UNIONFS}" = unionfs-fuse ]
2008         then
2009                 umount "${rootmnt}/dev"
2010         fi
2011
2012         exec 1>&6 6>&-
2013         exec 2>&7 7>&-
2014         kill ${tailpid}
2015         [ -w "${rootmnt}/var/log/" ] && cp live-boot.log "${rootmnt}/var/log/" 2>/dev/null
2016 }