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 LIVE_MEDIA_PATH="live"
  12
  13 root_persistence="live-rw"
  14 home_persistence="home-rw"
  15 root_snapshot_label="live-sn"
  16 home_snapshot_label="home-sn"
  17
  18 USERNAME="user"
  19 USERFULLNAME="Live user"
  20 HOSTNAME="host"
  21
  22 mkdir -p "${mountpoint}"
  23
  24 # Create /etc/mtab for debug purpose and future syncs
  25 if [ ! -d /etc ]
  26 then
  27         mkdir /etc/
  28 fi
  29
  30 if [ ! -f /etc/mtab ]
  31 then
  32         touch /etc/mtab
  33 fi
  34
  35 [ -f /etc/live.conf ] && . /etc/live.conf
  36 export USERNAME USERFULLNAME HOSTNAME
  37
  38 . /scripts/live-helpers
  39
  40 if [ ! -f /live.vars ]
  41 then
  42         touch /live.vars
  43 fi
  44
  45 Arguments ()
  46 {
  47         PRESEEDS=""
  48
  49         for ARGUMENT in $(cat /proc/cmdline)
  50         do
  51                 case "${ARGUMENT}" in
  52                         access=*)
  53                                 ACCESS="${ARGUMENT#access=}"
  54                                 export ACCESS
  55                                 ;;
  56
  57                         console=*)
  58                                 DEFCONSOLE="${ARGUMENT#*=}"
  59                                 export DEFCONSOLE
  60                                 ;;
  61
  62                         debug)
  63                                 DEBUG="Yes"
  64                                 export DEBUG
  65
  66                                 set -x
  67                                 ;;
  68
  69                         fetch=*)
  70                                 FETCH="${ARGUMENT#fetch=}"
  71                                 export FETCH
  72                                 ;;
  73
  74                         hook=*)
  75                                 HOOK="${ARGUMENT#hook=}"
  76                                 export HOOK
  77                                 ;;
  78
  79                         ftpfs=*)
  80                                 FTPFS="${ARGUMENT#ftpfs=}"
  81                                 export FTPFS
  82                                 ;;
  83
  84                         httpfs=*)
  85                                 HTTPFS="${ARGUMENT#httpfs=}"
  86                                 export HTTPFS
  87                                 ;;
  88
  89                         hostname=*)
  90                                 HOSTNAME="${ARGUMENT#hostname=}"
  91                                 LIVECONF="changed"
  92                                 export HOSTNAME LIVECONF
  93                                 ;;
  94
  95                         username=*)
  96                                 USERNAME="${ARGUMENT#username=}"
  97                                 LIVECONF="changed"
  98                                 export USERNAME LIVECONF
  99                                 ;;
 100
 101                         userfullname=*)
 102                                 USERFULLNAME="${ARGUMENT#userfullname=}"
 103                                 LIVECONF="changed"
 104                                 export USERFULLNAME LIVECONF
 105                                 ;;
 106
 107                         ignore_uuid)
 108                                 IGNORE_UUID="Yes"
 109                                 export IGNORE_UUID
 110                                 ;;
 111
 112                         ip=*)
 113                                 STATICIP="${ARGUMENT#ip=}"
 114
 115                                 if [ -z "${STATICIP}" ]
 116                                 then
 117                                         STATICIP="frommedia"
 118                                 fi
 119
 120                                 export STATICIP
 121                                 ;;
 122
 123                         keyb=*|kbd-chooser/method=*)
 124                                 KBD="${ARGUMENT#*=}"
 125                                 export KBD
 126                                 ;;
 127
 128                         klayout=*|console-setup/layoutcode=*)
 129                                 KLAYOUT="${ARGUMENT#*=}"
 130                                 export KLAYOUT
 131                                 ;;
 132
 133                         kvariant=*|console-setup/variantcode=*)
 134                                 KVARIANT="${ARGUMENT#*=}"
 135                                 export KVARIANT
 136                                 ;;
 137
 138                         kmodel=*|console-setup/modelcode=*)
 139                                 KMODEL="${ARGUMENT#*=}"
 140                                 export KMODEL
 141                                 ;;
 142
 143                         koptions=*)
 144                                 KOPTIONS="${ARGUMENT#koptions=}"
 145                                 export KOPTIONS
 146                                 ;;
 147
 148                         live-getty)
 149                                 LIVE_GETTY="1"
 150                                 export LIVE_GETTY
 151                                 ;;
 152
 153                         live-media=*|bootfrom=*)
 154                                 LIVE_MEDIA="${ARGUMENT#*=}"
 155                                 export LIVE_MEDIA
 156                                 ;;
 157
 158                         live-media-encryption=*|encryption=*)
 159                                 LIVE_MEDIA_ENCRYPTION="${ARGUMENT#*=}"
 160                                 export LIVE_MEDIA_ENCRYPTION
 161                                 ;;
 162
 163                         live-media-offset=*)
 164                                 LIVE_MEDIA_OFFSET="${ARGUMENT#live-media-offset=}"
 165                                 export LIVE_MEDIA_OFFSET
 166                                 ;;
 167
 168                         live-media-path=*)
 169                                 LIVE_MEDIA_PATH="${ARGUMENT#live-media-path=}"
 170                                 export LIVE_MEDIA_PATH
 171                                 ;;
 172
 173                         live-media-timeout=*)
 174                                 LIVE_MEDIA_TIMEOUT="${ARGUMENT#live-media-timeout=}"
 175                                 export LIVE_MEDIA_TIMEOUT
 176                                 ;;
 177
 178                         language=*|debian-installer/language=*)
 179                                 language=${x#debian-installer/language=}
 180                                 locale="$(lang2locale "$language")"
 181                                 set_locale="true"
 182                                 ;;
 183
 184                         locale=*|debian-installer/locale=*)
 185                                 LOCALE="${ARGUMENT#*=}"
 186                                 export LOCALE
 187                                 ;;
 188
 189                         module=*)
 190                                 MODULE="${ARGUMENT#module=}"
 191                                 export MODULE
 192                                 ;;
 193
 194                         netboot=*)
 195                                 NETBOOT="${ARGUMENT#netboot=}"
 196                                 export NETBOOT
 197                                 ;;
 198
 199                         nfsopts=*)
 200                                 NFSOPTS="${ARGUMENT#nfsopts=}"
 201                                 export NFSOPTS
 202                                 ;;
 203
 204                         nfscow=*)
 205                                 NFS_COW="${ARGUMENT#nfscow=}"
 206                                 export NFS_COW
 207                                 ;;
 208
 209                         noaccessibility)
 210                                 NOACCESSIBILITY="Yes"
 211                                 export NOACCESSIBILITY
 212                                 ;;
 213
 214                         noapparmor)
 215                                 NOAPPARMOR="Yes"
 216                                 export NOAPPARMOR
 217                                 ;;
 218
 219                         noaptcdrom)
 220                                 NOAPTCDROM="Yes"
 221                                 export NOAPTCDROM
 222                                 ;;
 223
 224                         noautologin)
 225                                 NOAUTOLOGIN="Yes"
 226                                 export NOAUTOLOGIN
 227                                 ;;
 228
 229                         noxautologin)
 230                                 NOXAUTOLOGIN="Yes"
 231                                 export NOXAUTOLOGIN
 232                                 ;;
 233
 234                         noconsolekeyboard)
 235                                 NOCONSOLEKEYBOARD="Yes"
 236                                 export NOCONSOLEKEYBOARD
 237                                 ;;
 238
 239                         nofastboot)
 240                                 NOFASTBOOT="Yes"
 241                                 export NOFASTBOOT
 242                                 ;;
 243
 244                         nofstab)
 245                                 NOFSTAB="Yes"
 246                                 export NOFSTAB
 247                                 ;;
 248
 249                         nognomepanel)
 250                                 NOGNOMEPANEL="Yes"
 251                                 export NOGNOMEPANEL
 252                                 ;;
 253
 254                         nohosts)
 255                                 NOHOSTS="Yes"
 256                                 export NOHOSTS
 257                                 ;;
 258
 259                         nokpersonalizer)
 260                                 NOKPERSONALIZER="Yes"
 261                                 export NOKPERSONALIZER
 262                                 ;;
 263
 264                         nolanguageselector)
 265                                 NOLANGUAGESELECTOR="Yes"
 266                                 export NOLANGUAGESELECTOR
 267                                 ;;
 268
 269                         nolocales)
 270                                 NOLOCALES="Yes"
 271                                 export NOLOCALES
 272                                 ;;
 273
 274                         nonetworking)
 275                                 NONETWORKING="Yes"
 276                                 export NONETWORKING
 277                                 ;;
 278
 279                         nopowermanagement)
 280                                 NOPOWERMANAGEMENT="Yes"
 281                                 export NOPOWERMANAGEMENT
 282                                 ;;
 283
 284                         noprogramcrashes)
 285                                 NOPROGRAMCRASHES="Yes"
 286                                 export NOPROGRAMCRASHES
 287                                 ;;
 288
 289                         norestrictedmanager)
 290                                 NORESTRICTEDMANAGER="Yes"
 291                                 export NORESTRICTEDMANAGER
 292                                 ;;
 293
 294                         nosudo)
 295                                 NOSUDO="Yes"
 296                                 export NOSUDO
 297                                 ;;
 298
 299                         swapon)
 300                                 SWAPON="Yes"
 301                                 export SWAPON
 302                                 ;;
 303
 304                         noupdatenotifier)
 305                                 NOUPDATENOTIFIER="Yes"
 306                                 export NOUPDATENOTIFIER
 307                                 ;;
 308
 309                         nouser)
 310                                 NOUSER="Yes"
 311                                 export NOUSER
 312                                 ;;
 313
 314                         noxautoconfig)
 315                                 NOXAUTOCONFIG="Yes"
 316                                 export NOXAUTOCONFIG
 317                                 ;;
 318
 319                         noxscreensaver)
 320                                 NOXSCREENSAVER="Yes"
 321                                 export NOXSCREENSAVER
 322                                 ;;
 323
 324                         persistent)
 325                                 PERSISTENT="Yes"
 326                                 export PERSISTENT
 327                                 ;;
 328
 329                         nopersistent)
 330                                 NOPERSISTENT="Yes"
 331                                 export NOPERSISTENT
 332                                 ;;
 333
 334                         preseed/file=*|file=*)
 335                                 LOCATION="${ARGUMENT#*=}"
 336                                 export LOCATION
 337                                 ;;
 338
 339                         nopreseed)
 340                                 NOPRESEED="Yes"
 341                                 export NOPRESEED
 342                                 ;;
 343
 344                         url=*)
 345                                 location="${ARGUMENT#url=}"
 346
 347                                 mount -o bind /sys /root/sys
 348                                 mount -o bind /proc /root/proc
 349                                 mount -o bind /dev /root/dev
 350
 351                                 mkdir -p /root/var/run/network
 352                                 chroot /root dhclient eth0
 353                                 chroot /root wget -P /tmp "${location}"
 354                                 chroot /root ifconfig eth0 down
 355
 356                                 umount /root/sys
 357                                 umount /root/proc
 358                                 umount /root/dev
 359
 360                                 LOCATION="/tmp/$(basename "${location}")"
 361                                 ;;
 362
 363                         */*=*)
 364                                 question="${ARGUMENT%%=*}"
 365                                 value="${ARGUMENT#*=}"
 366                                 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
 367                                 export PRESEEDS
 368                                 ;;
 369
 370                         showmounts)
 371                                 SHOWMOUNTS="Yes"
 372                                 export SHOWMOUNTS
 373                                 ;;
 374
 375                         textonly)
 376                                 TEXTONLY="Yes"
 377                                 export TEXTONLY
 378                                 ;;
 379
 380                         timezone=*)
 381                                 TIMEZONE="${ARGUMENT#timezone=}"
 382                                 export TIMEZONE
 383                                 ;;
 384
 385                         notimezone)
 386                                 NOTIMEZONE="Yes"
 387                                 export NOTIMEZONE
 388                                 ;;
 389
 390                         todisk=*)
 391                                 TODISK="${ARGUMENT#todisk=}"
 392                                 export TODISK
 393                                 ;;
 394
 395                         toram)
 396                                 TORAM="Yes"
 397                                 export TORAM
 398                                 ;;
 399
 400                         toram=*)
 401                                 TORAM="Yes"
 402                                 MODULETORAM="${ARGUMENT#toram=}"
 403                                 export TORAM MODULETORAM
 404                                 ;;
 405
 406                         exposedroot)
 407                                 EXPOSED_ROOT="Yes"
 408                                 export EXPOSED_ROOT
 409                                 ;;
 410
 411                         plainroot)
 412                                 PLAIN_ROOT="Yes"
 413                                 export PLAIN_ROOT
 414                                 ;;
 415
 416                         root=*)
 417                                 ROOT="${ARGUMENT#root=}"
 418                                 export ROOT
 419                                 ;;
 420
 421                         union=*)
 422                                 UNIONTYPE="${ARGUMENT#union=}"
 423                                 export UNIONTYPE
 424                                 ;;
 425
 426                         utc=*)
 427                                 UTC="${ARGUMENT#utc=}"
 428                                 export UTC
 429                                 ;;
 430
 431                         xdebconf)
 432                                 XDEBCONF="Yes"
 433                                 export XDEBCONF
 434                                 ;;
 435
 436                         xdriver=*)
 437                                 XDRIVER="${ARGUMENT#xdriver=}"
 438                                 export XDRIVER
 439                                 ;;
 440
 441                         xvideomode=*)
 442                                 XVIDEOMODE="${ARGUMENT#xvideomode=}"
 443                                 export XVIDEOMODE
 444                                 ;;
 445                 esac
 446         done
 447
 448         # sort of compatibility with netboot.h from linux docs
 449         if [ -z "${NETBOOT}" ]
 450         then
 451                 if [ "${ROOT}" = "/dev/nfs" ]
 452                 then
 453                         NETBOOT="nfs"
 454                         export NETBOOT
 455                 elif [ "${ROOT}" = "/dev/cifs" ]
 456                 then
 457                         NETBOOT="cifs"
 458                         export NETBOOT
 459                 fi
 460         fi
 461
 462         if [ -z "${MODULE}" ]
 463         then
 464                 MODULE="filesystem"
 465                 export MODULE
 466         fi
 467
 468         if [ -z "${UNIONTYPE}" ]
 469         then
 470                 UNIONTYPE="aufs"
 471                 export UNIONTYPE
 472         fi
 473 }
 474
 475 is_live_path ()
 476 {
 477         DIRECTORY="${1}"
 478
 479         if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
 480         then
 481                 for FILESYSTEM in squashfs ext2 ext3 xfs dir jffs2
 482                 do
 483                         if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
 484                         then
 485                                 return 0
 486                         fi
 487                 done
 488         fi
 489
 490         return 1
 491 }
 492
 493 matches_uuid ()
 494 {
 495         if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
 496         then
 497                 return 0
 498         fi
 499
 500         path="${1}"
 501         uuid="$(cat /conf/uuid.conf)"
 502
 503         for try_uuid_file in "${mountpoint}/.disk/live-uuid"*
 504         do
 505                 [ -e "${try_uuid_file}" ] || continue
 506
 507                 try_uuid="$(cat "${try_uuid_file}")"
 508
 509                 if [ "${uuid}" = "${try_uuid}" ]
 510                 then
 511                         return 0
 512                 fi
 513         done
 514
 515         return 1
 516 }
 517
 518 get_backing_device ()
 519 {
 520         case "${1}" in
 521                 *.squashfs|*.ext2|*.ext3|*.jffs2)
 522                         echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
 523                         ;;
 524
 525                 *.dir)
 526                         echo "directory"
 527                         ;;
 528
 529                 *)
 530                         panic "Unrecognized live filesystem: ${1}"
 531                         ;;
 532         esac
 533 }
 534
 535 match_files_in_dir ()
 536 {
 537         # Does any files match pattern ${1} ?
 538         local pattern="${1}"
 539
 540         if [ "$(echo ${pattern})" != "${pattern}" ]
 541         then
 542                 return 0
 543         fi
 544
 545         return 1
 546 }
 547
 548 mount_images_in_directory ()
 549 {
 550         directory="${1}"
 551         rootmnt="${2}"
 552         mac="${3}"
 553
 554
 555         if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
 556                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
 557                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
 558                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
 559                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
 560         then
 561                 [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
 562                 setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
 563         else
 564                 :
 565         fi
 566 }
 567
 568 is_nice_device ()
 569 {
 570         sysfs_path="${1#/sys}"
 571
 572         if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"
 573         then
 574                 return 0
 575         elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
 576         then
 577                 return 0
 578         fi
 579
 580         return 1
 581 }
 582
 583 copy_live_to ()
 584 {
 585         copyfrom="${1}"
 586         copytodev="${2}"
 587         copyto="${copyfrom}_swap"
 588
 589         if [ -z "${MODULETORAM}" ]
 590         then
 591                 size=$(fs_size "" ${copyfrom} "used")
 592         else
 593                 MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
 594
 595                 if [ -f "${MODULETORAMFILE}" ]
 596                 then
 597                         size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
 598                 else
 599                         log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
 600                         return 1
 601                 fi
 602         fi
 603
 604         if [ "${copytodev}" = "ram" ]
 605         then
 606                 # copying to ram:
 607                 freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ) )
 608                 mount_options="-o size=${size}k"
 609                 free_string="memory"
 610                 fstype="tmpfs"
 611                 dev="/dev/shm"
 612         else
 613                 # it should be a writable block device
 614                 if [ -b "${copytodev}" ]
 615                 then
 616                         dev="${copytodev}"
 617                         free_string="space"
 618                         fstype=$(get_fstype "${dev}")
 619                         freespace=$(fs_size "${dev}")
 620                 else
 621                         log_warning_msg "${copytodev} is not a block device."
 622                         return 1
 623                 fi
 624         fi
 625
 626         if [ "${freespace}" -lt "${size}" ]
 627         then
 628                 log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
 629                 return 1
 630         fi
 631
 632         # begin copying (or uncompressing)
 633         mkdir "${copyto}"
 634         echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
 635         mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 636
 637         if [ "${extension}" = "tgz" ]
 638         then
 639                 cd "${copyto}"
 640                 tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 641                 rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 642                 mount -r -o move "${copyto}" "${rootmnt}"
 643                 cd "${OLDPWD}"
 644         else
 645                 if [ -n "${MODULETORAMFILE}" ]
 646                 then
 647                         cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
 648                 else
 649                         cp -a ${copyfrom}/* ${copyto}   # "cp -a" from busybox also copies hidden files
 650                 fi
 651
 652                 livefs_root
 653                 umount ${copyfrom}
 654                 mount -r -o move ${copyto} ${copyfrom}
 655         fi
 656
 657         rmdir ${copyto}
 658         return 0
 659 }
 660
 661 do_netmount ()
 662 {
 663         rc=1
 664
 665         modprobe -q af_packet # For DHCP
 666
 667         if [ -x /sbin/udevadm ]
 668         then
 669                 # lenny
 670                 udevadm trigger
 671                 udevadm settle
 672         else
 673                 # etch
 674                 udevtrigger
 675                 udevsettle
 676         fi
 677
 678         ipconfig ${DEVICE} | tee /netboot.config
 679
 680         # source relevant ipconfig output
 681         OLDHOSTNAME=${HOSTNAME}
 682         . /tmp/net-${DEVICE}.conf
 683         [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
 684         export HOSTNAME
 685
 686         if [ "${NFSROOT}" = "auto" ]
 687         then
 688                 NFSROOT=${ROOTSERVER}:${ROOTPATH}
 689         fi
 690
 691         if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) && do_httpmount
 692         then
 693                 rc=0
 694                 return ${rc}
 695         fi
 696
 697         if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
 698         then
 699                 NFSROOT=${ROOTSERVER}:${NFSROOT}
 700         fi
 701
 702         log_begin_msg "Trying netboot from ${NFSROOT}"
 703
 704         if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
 705         then
 706                 rc=0
 707         elif do_nfsmount
 708         then
 709                 NETBOOT="nfs"
 710                 export NETBOOT
 711                 rc=0
 712         fi
 713
 714         log_end_msg
 715         return ${rc}
 716 }
 717
 718 do_httpmount ()
 719 {
 720         rc=1
 721         dest="${mountpoint}/${LIVE_MEDIA_PATH}"
 722         mount -t ramfs ram "${mountpoint}"
 723         mkdir -p "${dest}"
 724
 725         for webfile in HTTPFS FTPFS FETCH
 726         do
 727                 url="$(eval echo \"\$\{${webfile}\}\")"
 728                 extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
 729
 730                 if [ -n "$url" ]
 731                 then
 732                         case "${extension}" in
 733                                 squashfs|tgz|tar)
 734                                         if [ "${webfile}" = "FETCH" ]
 735                                         then
 736                                                 case "$url" in
 737                                                         tftp*)
 738                                                                 ip="$(dirname $url | sed -e 's|tftp://||g')"
 739                                                                 log_begin_msg "Trying tftp -g -b 10240 -r $(basename ${url})  -l ${dest}/$(basename ${url}) $ip"
 740                                                                 tftp -g -b 10240 -r $(basename ${url})  -l ${dest}/$(basename ${url}) $ip
 741                                                         ;;
 742
 743                                                         *)
 744                                                                 log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
 745                                                                 wget "${url}" -O "${dest}/$(basename ${url})"
 746                                                                 ;;
 747                                                 esac
 748                                         else
 749                                                 log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
 750                                                 if [ "${webfile}" = "FTPFS" ]
 751                                                 then
 752                                                         FUSE_MOUNT="curlftpfs"
 753                                                         url="$(dirname ${url})"
 754                                                 else
 755                                                         FUSE_MOUNT="httpfs"
 756                                                 fi
 757                                                 modprobe fuse
 758                                                 $FUSE_MOUNT "${url}" "${dest}"
 759                                         fi
 760                                         [ ${?} -eq 0 ] && rc=0
 761                                         [ "${extension}" = "tgz" ] && live_dest="ram"
 762                                         break
 763                                         ;;
 764
 765                                 *)
 766                                         log_begin_msg "Unrecognized archive extension for ${url}"
 767                                         ;;
 768                         esac
 769                 fi
 770         done
 771
 772         if [ ${rc} != 0 ]
 773         then
 774             umount "${mountpoint}"
 775         fi
 776
 777         return ${rc}
 778 }
 779
 780 do_nfsmount ()
 781 {
 782         rc=1
 783
 784         modprobe -q nfs
 785
 786         if [ -z "${NFSOPTS}" ]
 787         then
 788                 NFSOPTS=""
 789         fi
 790
 791         log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
 792
 793         # FIXME: This for loop is an ugly HACK round an nfs bug
 794         for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13
 795         do
 796                 nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
 797                 sleep 1
 798         done
 799
 800         return ${rc}
 801 }
 802
 803 do_cifsmount ()
 804 {
 805         rc=1
 806
 807         if [ -x "/sbin/mount.cifs" ]
 808         then
 809                 if [ -z "${NFSOPTS}" ]
 810                 then
 811                         CIFSOPTS="-ouser=root,password="
 812                 else
 813                         CIFSOPTS="${NFSOPTS}"
 814                 fi
 815
 816                 log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
 817                 modprobe -q cifs
 818
 819                 if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
 820                 then
 821                         rc=0
 822                 fi
 823         fi
 824
 825         return ${rc}
 826 }
 827
 828 do_snap_copy ()
 829 {
 830         fromdev="${1}"
 831         todir="${2}"
 832         snap_type="${3}"
 833         size=$(fs_size "${fromdev}" "" "used")
 834
 835         if [ -b "${fromdev}" ]
 836         then
 837                 # look for free mem
 838                 if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
 839                 then
 840                         todev=$(cat /proc/mounts | grep -s " $(base_path ${todir}) " | awk '{print $1}' )
 841                         freespace=$(df -k  | grep -s ${todev} | awk '{print $4}')
 842                 else
 843                         freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ))
 844                 fi
 845
 846                 tomount="/mnt/tmpsnap"
 847
 848                 if [ ! -d "${tomount}" ]
 849                 then
 850                         mkdir -p "${tomount}"
 851                 fi
 852
 853                 fstype=$(get_fstype "${fromdev}")
 854
 855                 if [ -n "${fstype}" ]
 856                 then
 857                         # Copying stuff...
 858                         mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
 859                         cp -a "${tomount}"/* ${todir}
 860                         umount "${tomount}"
 861                 else
 862                         log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
 863                 fi
 864
 865                 rmdir "${tomount}"
 866
 867                 if echo ${fromdev} | grep -qs loop
 868                 then
 869                         losetup -d "${fromdev}"
 870                 fi
 871
 872                 return 0
 873         else
 874                 return 1
 875
 876                 log_warning_msg "Unable to find the snapshot ${snap_type} medium"
 877         fi
 878 }
 879
 880 find_snap ()
 881 {
 882         # Look for ${snap_label}.* in block devices
 883         snap_label="${1}"
 884         snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snap_label}.jffs2")
 885         if [ -z "${snapdata}" ]
 886         then
 887                 snapdata=$(find_cow_device "${snap_label}")
 888         fi
 889         echo "${snapdata}"
 890 }
 891
 892 try_snap ()
 893 {
 894         # copy the contents of previously found snapshot to ${snap_mount}
 895         # and remember the device and filename for resync on exit in live-initramfs.init
 896
 897         snapdata="${1}"
 898         snap_mount="${2}"
 899         snap_type="${3}"
 900
 901         if [ ! -z "${snapdata}" ]
 902         then
 903                 log_success_msg "found snapshot: ${snapdata}"
 904                 snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
 905                 snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
 906                 snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
 907
 908                 RES=""
 909                 if ! try_mount "${snapdev}" "${snapback}" "ro"
 910                 then
 911                         break
 912                 fi
 913
 914                 if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|jffs2\)'
 915                 then
 916                         # squashfs, jffs2 or ext2/ext3 snapshot
 917                         dev=$(get_backing_device "${snapback}/${snapfile}")
 918
 919                         do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
 920                         RES=$?
 921                 else
 922                         # cpio.gz snapshot
 923                         cd "${snap_mount}"
 924                         zcat "${snapback}/${snapfile}" | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories > /dev/null 2>&1
 925                         RES=$?
 926                         if [ "${RES}" != "0" ]
 927                         then
 928                                 log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories\""
 929                         fi
 930                         cd "${OLDPWD}"
 931                 fi
 932
 933                 umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
 934
 935                 if [ "${RES}" != "0" ]
 936                 then
 937                         log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
 938                 fi
 939
 940
 941         elif [ -b "${snapdata}" ]
 942         then
 943                 # Try to find if it could be a snapshot partition
 944                 dev="${snapdata}"
 945                 log_success_msg "found snapshot device on ${dev}"
 946                 if echo "${dev}" | grep -qs loop
 947                 then
 948                         # strange things happens, user confused?
 949                         snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
 950                         snapfile=$(basename ${snaploop})
 951                         snapdev=$(cat /proc/mounts | awk '{print $2,$1}' | grep -es "^$( dirname ${snaploop} )" | cut -f2 -d ' ')
 952                 else
 953                         snapdev="${dev}"
 954                 fi
 955
 956                 if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
 957                 then
 958                         log_warning_msg "Impossible to include the ${snap_type} Snapshot"
 959                         return 1
 960                 else
 961                         if [ -n "${snapfile}" ]
 962                         then
 963                                 # it was a loop device, user confused
 964                                 umount ${snapdev}
 965                         fi
 966                 fi
 967         else
 968                 log_warning_msg "Impossible to include the ${snap_type} Snapshot"
 969                 return 1
 970         fi
 971
 972         echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt
 973         return 0
 974 }
 975
 976 setup_unionfs ()
 977 {
 978         image_directory="${1}"
 979         rootmnt="${2}"
 980         addimage_directory="${3}"
 981         modprobe -q -b ${UNIONTYPE}
 982
 983         # run-init can't deal with images in a subdir, but we're going to
 984         # move all of these away before it runs anyway.  No, we're not,
 985         # put them in / since move-mounting them into / breaks mono and
 986         # some other apps.
 987
 988         croot="/"
 989
 990         # Let's just mount the read-only file systems first
 991         rofsstring=""
 992         rofslist=""
 993         minor_kernel_version=$(uname -r|cut -c 5-|sed 's/[^0-9].*//')
 994
 995         if [ "${NETBOOT}" = "nfs" ] && [ "${minor_kernel_version}" -lt 22 ]
 996         then
 997                 # go aroung a bug in nfs-unionfs locking for unionfs <= 1.4
 998                 roopt="nfsro"
 999         elif [ "${UNIONTYPE}" = "aufs" ]
1000         then
1001                 roopt="rr"
1002         else
1003                 roopt="ro"
1004         fi
1005
1006         # Read image names from ${MODULE}.module if it exists
1007         if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
1008         then
1009                 for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
1010                 do
1011                         image_string="${image_string} ${image_directory}/${IMAGE}"
1012                 done
1013         elif [ -e "${image_directory}/${MODULE}.module" ]
1014         then
1015                 for IMAGE in $(cat ${image_directory}/${MODULE}.module)
1016                 do
1017                         image_string="${image_string} ${image_directory}/${IMAGE}"
1018                 done
1019         else
1020                 # ${MODULE}.module does not exist, create a list of images
1021                 for FILESYSTEM in squashfs ext2 ext3 xfs jffs2 dir
1022                 do
1023                         for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
1024                         do
1025                                 if [ -e "${IMAGE}" ]
1026                                 then
1027                                         image_string="${image_string} ${IMAGE}"
1028                                 fi
1029                         done
1030                 done
1031
1032                 if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
1033                 then
1034                         for FILESYSTEM in squashfs ext2 ext3 xfs jffs2 dir
1035                         do
1036                                 for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
1037                                 do
1038                                         if [ -e "${IMAGE}" ]
1039                                         then
1040                                                 image_string="${image_string} ${IMAGE}"
1041                                         fi
1042                                 done
1043                         done
1044                 fi
1045
1046                 # Now sort the list
1047                 image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
1048         fi
1049
1050         [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
1051
1052         mkdir -p "${croot}"
1053
1054         for image in ${image_string}
1055         do
1056                 imagename=$(basename "${image}")
1057
1058                 if [ -d "${image}" ]
1059                 then
1060                         # it is a plain directory: do nothing
1061                         rofsstring="${image}=${roopt}:${rofsstring}"
1062                         rofslist="${image} ${rofslist}"
1063                 elif [ -f "${image}" ]
1064                 then
1065                         if losetup --help 2>&1 | grep -q -- "-r\b"
1066                         then
1067                                 backdev=$(get_backing_device "${image}" "-r")
1068                         else
1069                                 backdev=$(get_backing_device "${image}")
1070                         fi
1071                         fstype=$(get_fstype "${backdev}")
1072
1073                         if [ "${fstype}" = "unknown" ]
1074                         then
1075                                 panic "Unknown file system type on ${backdev} (${image})"
1076                         fi
1077
1078                         if [ -z "${fstype}" ]
1079                         then
1080                                 fstype="${imagename##*.}"
1081                                 log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
1082                         fi
1083
1084                         mkdir -p "${croot}/${imagename}"
1085                         log_begin_msg "Mounting \"${image}\" on \"${croot}${imagename}\" via \"${backdev}\""
1086                         mount -t "${fstype}" -o ro,noatime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
1087                         log_end_msg
1088                 fi
1089         done
1090
1091         rofsstring=${rofsstring%:}
1092
1093         mkdir -p /cow
1094
1095         # Looking for "${root_persistence}" device or file
1096         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1097         then
1098                 # Load USB modules
1099                 num_block=$(ls -l /sys/block | wc -l)
1100                 for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
1101                 do
1102                         modprobe -q -b ${module}
1103                 done
1104
1105                 if [ -x /sbin/udevadm ]
1106                 then
1107                         # lenny
1108                         udevadm trigger
1109                         udevadm settle
1110                 else
1111                         # etch
1112                         udevtrigger
1113                         udevsettle
1114                 fi
1115
1116                 # For some reason, udevsettle does not block in this scenario,
1117                 # so we sleep for a little while.
1118                 #
1119                 # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
1120                 for timeout in 5 4 3 2 1
1121                 do
1122                         sleep 1
1123
1124                         if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
1125                         then
1126                                 break
1127                         fi
1128                 done
1129
1130                 # search for label and files (this could be hugely optimized)
1131                 cowprobe=$(find_cow_device "${root_persistence}")
1132                 if [ -b "${cowprobe}" ]
1133                 then
1134                         # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots
1135                         # makes sense to have both persistence for /cow and /home mounted, maybe also with
1136                         # snapshots to be sure to really store some e.g key config files,
1137                         # but not on the same media
1138                         blacklistdev="${cowprobe}"
1139                 fi
1140                 # homecow just mount something on /home, this should be generalized some way
1141                 homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}")
1142                 root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}")
1143                 # This second type should be removed when snapshot grow smarter
1144                 home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}")
1145
1146                 if [ -b "${cowprobe}" ]
1147                 then
1148                         cowdevice=${cowprobe}
1149                         cow_fstype=$(get_fstype "${cowprobe}")
1150                         cow_mountopt="rw,noatime"
1151                 else
1152                         log_warning_msg "Unable to find the persistent medium"
1153                         cowdevice="tmpfs"
1154                         cow_fstype="tmpfs"
1155                         cow_mountopt="rw,noatime,mode=755"
1156                 fi
1157         elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
1158         then
1159                 # check if there are any nfs options
1160                 if echo ${NFS_COW}|grep -q ','
1161                 then
1162                         nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
1163                         nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
1164                 else
1165                         nfs_cow_opts="-o nolock"
1166                         nfs_cow=${NFS_COW}
1167                 fi
1168                 mac="$(get_mac)"
1169                 if [ -n "${mac}" ]
1170                 then
1171                         cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
1172                         cow_fstype="nfs"
1173                 else
1174                         panic "unable to determine mac address"
1175                 fi
1176         else
1177                 cowdevice="tmpfs"
1178                 cow_fstype="tmpfs"
1179                 cow_mountopt="rw,noatime,mode=755"
1180         fi
1181
1182         if [ "${cow_fstype}" = "nfs" ]
1183         then
1184                 log_begin_msg \
1185                         "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
1186                 nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
1187                         panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
1188         else
1189                 mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
1190                         panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
1191         fi
1192
1193         rofscount=$(echo ${rofslist} |wc -w)
1194
1195         if [ -n "${EXPOSED_ROOT}" ]
1196         then
1197                 if [ ${rofscount} -ne 1 ]
1198                 then
1199                         panic "only one RO file system supported with exposedroot: ${rofslist}"
1200                 fi
1201                 exposedrootfs=${rofslist%% }
1202
1203                 mount --bind ${exposedrootfs} ${rootmnt} || \
1204                         panic "bind mount of ${exposedrootfs} failed"
1205
1206                 cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool
1207                         /home /var/lib/live'
1208
1209                 for dir in ${cow_dirs}; do
1210                         mkdir -p /cow${dir}
1211                         mount -t ${UNIONTYPE} \
1212                                 -o rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro \
1213                                 ${UNIONTYPE} "${rootmnt}${dir}" || \
1214                                 panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option \
1215                                         rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro"
1216                 done
1217         else
1218                 mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} \
1219                         ${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on \
1220                         ${rootmnt} failed with option noatime,dirs=/cow=rw:${rofsstring}"
1221         fi
1222
1223         # tmpfs file systems
1224         touch /etc/fstab
1225         mkdir -p "${rootmnt}/live"
1226         mount -t tmpfs tmpfs ${rootmnt}/live
1227
1228         # Adding other custom mounts
1229         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1230         then
1231                 # directly mount /home
1232                 # FIXME: add a custom mounts configurable system
1233
1234                 if [ -b "${homecow}" ]
1235                 then
1236                         mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
1237                         export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
1238                 else
1239                         log_warning_msg "Unable to find the persistent home medium"
1240                 fi
1241
1242                 # Look for other snapshots to copy in
1243                 try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
1244                 # This second type should be removed when snapshot grow smarter
1245                 try_snap "${home_snapdata}" "${rootmnt}/home" "HOME"
1246         fi
1247
1248         if [ -n "${SHOWMOUNTS}" ]
1249         then
1250                 for d in ${rofslist}
1251                 do
1252                         mkdir -p "${rootmnt}/live/${d##*/}"
1253
1254                         case d in
1255                                 *.dir)
1256                                         # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1257                                         ;;
1258
1259                                 *)
1260                                         mount -o move "${d}" "${rootmnt}/live/${d##*/}"
1261                                         ;;
1262                         esac
1263                 done
1264         fi
1265
1266         # shows cow fs on /cow for use by live-snapshot
1267         mkdir -p "${rootmnt}/live/cow"
1268         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 ${rootmnt}/live/cow"
1269 }
1270
1271 check_dev ()
1272 {
1273         sysdev="${1}"
1274         devname="${2}"
1275         skip_uuid_check="${3}"
1276
1277         if [ -z "${devname}" ]
1278         then
1279                 devname=$(sys2dev "${sysdev}")
1280         fi
1281
1282         if [ -d "${devname}" ]
1283         then
1284                 mount -o bind "${devname}" $mountpoint || continue
1285
1286                 if is_live_path $mountpoint
1287                 then
1288                         echo $mountpoint
1289                         return 0
1290                 else
1291                         umount $mountpoint
1292                 fi
1293         fi
1294
1295         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1296         then
1297                 loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
1298                 devname="${loopdevname}"
1299         fi
1300
1301         fstype=$(get_fstype "${devname}")
1302
1303         if is_supported_fs ${fstype}
1304         then
1305                 mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
1306
1307                 if is_live_path ${mountpoint} && \
1308                         ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
1309                 then
1310                         echo ${mountpoint}
1311                         return 0
1312                 else
1313                         umount ${mountpoint}
1314                 fi
1315         fi
1316
1317         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1318         then
1319                 losetup -d "${loopdevname}"
1320         fi
1321
1322         return 1
1323 }
1324
1325 find_livefs ()
1326 {
1327         timeout="${1}"
1328
1329         # first look at the one specified in the command line
1330         if [ ! -z "${LIVE_MEDIA}" ]
1331         then
1332                 if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
1333                 then
1334                         return 0
1335                 fi
1336         fi
1337
1338         # don't start autodetection before timeout has expired
1339         if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
1340         then
1341                 if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
1342                 then
1343                         return 1
1344                 fi
1345         fi
1346
1347         # or do the scan of block devices
1348         for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram | grep -v 'dm-' | grep -v fd )
1349         do
1350                 devname=$(sys2dev "${sysblock}")
1351                 fstype=$(get_fstype "${devname}")
1352
1353                 if /lib/udev/cdrom_id ${devname} > /dev/null
1354                 then
1355                         if check_dev "null" "${devname}"
1356                         then
1357                                 return 0
1358                         fi
1359                 elif is_nice_device "${sysblock}"
1360                 then
1361                         for dev in $(subdevices "${sysblock}")
1362                         do
1363                                 if check_dev "${dev}"
1364                                 then
1365                                         return 0
1366                                 fi
1367                         done
1368                 elif [ "${fstype}" = "squashfs" -o \
1369                         "${fstype}" = "ext2" -o \
1370                         "${fstype}" = "ext3" -o \
1371                         "${fstype}" = "jffs2" ]
1372                 then
1373                         # This is an ugly hack situation, the block device has
1374                         # an image directly on it.  It's hopefully
1375                         # live-initramfs, so take it and run with it.
1376                         ln -s "${devname}" "${devname}.${fstype}"
1377                         echo "${devname}.${fstype}"
1378                         return 0
1379                 fi
1380         done
1381
1382         return 1
1383 }
1384
1385 set_usplash_timeout ()
1386 {
1387         if [ -x /sbin/usplash_write ]
1388         then
1389                 /sbin/usplash_write "TIMEOUT 120"
1390         else if [ -x /sbin/splashy_update ] ; then
1391                 /sbin/splashy_update "TIMEOUT 120"
1392         fi ; fi
1393 }
1394
1395 mountroot ()
1396 {
1397         if [ -x /scripts/local-top/cryptroot ]; then
1398             /scripts/local-top/cryptroot
1399         fi
1400
1401         exec 6>&1
1402         exec 7>&2
1403         exec > live.log
1404         exec 2>&1
1405         tail -f live.log >&7 &
1406         tailpid="${!}"
1407
1408         # Ensure 'panic' function is overridden
1409         . /scripts/live-functions
1410
1411         Arguments
1412
1413         set_usplash_timeout
1414
1415         maybe_break live-premount
1416         log_begin_msg "Running /scripts/live-premount"
1417         run_scripts /scripts/live-premount
1418         log_end_msg
1419
1420         # Needed here too because some things (*cough* udev *cough*)
1421         # changes the timeout
1422
1423         set_usplash_timeout
1424
1425         if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
1426         then
1427                 if do_netmount
1428                 then
1429                         livefs_root="${mountpoint}"
1430                 else
1431                         panic "Unable to find a live file system on the network"
1432                 fi
1433         else
1434                 if [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
1435                 then
1436                         # Do a local boot from hd
1437                         livefs_root=${ROOT}
1438                 else
1439                         # Scan local devices for the image
1440                         for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
1441                         do
1442                                 livefs_root=$(find_livefs ${i})
1443
1444                                 if [ -n "${livefs_root}" ]
1445                                 then
1446                                         break
1447                                 fi
1448
1449                                 sleep 1
1450                         done
1451                 fi
1452         fi
1453
1454         if [ -z "${livefs_root}" ]
1455         then
1456                 panic "Unable to find a medium containing a live file system"
1457         fi
1458
1459         if [ "${TORAM}" ]
1460         then
1461                 live_dest="ram"
1462         elif [ "${TODISK}" ]
1463         then
1464                 live_dest="${TODISK}"
1465         fi
1466
1467         if [ "${live_dest}" ]
1468         then
1469                 log_begin_msg "Copying live media to ${live_dest}"
1470                 copy_live_to "${livefs_root}" "${live_dest}"
1471                 log_end_msg
1472         fi
1473
1474         if [ -n "${MODULETORAMFILE}" ]
1475         then
1476                 setup_unionfs "${livefs_root}" "${rootmnt}"
1477         else
1478                 mac="$(get_mac)"
1479                 mac="$(echo ${mac} | sed 's/-//g')"
1480                 mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
1481         fi
1482
1483         log_end_msg
1484
1485         maybe_break live-bottom
1486         log_begin_msg "Running /scripts/live-bottom"
1487
1488         run_scripts /scripts/live-bottom
1489         log_end_msg
1490
1491         exec 1>&6 6>&-
1492         exec 2>&7 7>&-
1493         kill ${tailpid}
1494         cp live.log "${rootmnt}/var/log/"
1495 }