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