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                         persistent=*)
 330                                 PERSISTENT="${ARGUMENT#persistent=}"
 331                                 if [ -z "${PERSISTENT}" ]
 332                                 then
 333                                         PERSISTENT="Yes"
 334                                 fi
 335                                 export PERSISTENT
 336                                 ;;
 337
 338                         nopersistent)
 339                                 NOPERSISTENT="Yes"
 340                                 export NOPERSISTENT
 341                                 ;;
 342
 343                         preseed/file=*|file=*)
 344                                 LOCATION="${ARGUMENT#*=}"
 345                                 export LOCATION
 346                                 ;;
 347
 348                         nopreseed)
 349                                 NOPRESEED="Yes"
 350                                 export NOPRESEED
 351                                 ;;
 352
 353                         url=*)
 354                                 location="${ARGUMENT#url=}"
 355
 356                                 mount -o bind /sys /root/sys
 357                                 mount -o bind /proc /root/proc
 358                                 mount -o bind /dev /root/dev
 359
 360                                 mkdir -p /root/var/run/network
 361                                 chroot /root dhclient eth0
 362                                 chroot /root wget -P /tmp "${location}"
 363                                 chroot /root ifconfig eth0 down
 364
 365                                 umount /root/sys
 366                                 umount /root/proc
 367                                 umount /root/dev
 368
 369                                 LOCATION="/tmp/$(basename "${location}")"
 370                                 ;;
 371
 372                         */*=*)
 373                                 question="${ARGUMENT%%=*}"
 374                                 value="${ARGUMENT#*=}"
 375                                 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
 376                                 export PRESEEDS
 377                                 ;;
 378
 379                         showmounts)
 380                                 SHOWMOUNTS="Yes"
 381                                 export SHOWMOUNTS
 382                                 ;;
 383
 384                         textonly)
 385                                 TEXTONLY="Yes"
 386                                 export TEXTONLY
 387                                 ;;
 388
 389                         timezone=*)
 390                                 TIMEZONE="${ARGUMENT#timezone=}"
 391                                 export TIMEZONE
 392                                 ;;
 393
 394                         notimezone)
 395                                 NOTIMEZONE="Yes"
 396                                 export NOTIMEZONE
 397                                 ;;
 398
 399                         todisk=*)
 400                                 TODISK="${ARGUMENT#todisk=}"
 401                                 export TODISK
 402                                 ;;
 403
 404                         toram)
 405                                 TORAM="Yes"
 406                                 export TORAM
 407                                 ;;
 408
 409                         toram=*)
 410                                 TORAM="Yes"
 411                                 MODULETORAM="${ARGUMENT#toram=}"
 412                                 export TORAM MODULETORAM
 413                                 ;;
 414
 415                         exposedroot)
 416                                 EXPOSED_ROOT="Yes"
 417                                 export EXPOSED_ROOT
 418                                 ;;
 419
 420                         plainroot)
 421                                 PLAIN_ROOT="Yes"
 422                                 export PLAIN_ROOT
 423                                 ;;
 424
 425                         root=*)
 426                                 ROOT="${ARGUMENT#root=}"
 427                                 export ROOT
 428                                 ;;
 429
 430                         union=*)
 431                                 UNIONTYPE="${ARGUMENT#union=}"
 432                                 export UNIONTYPE
 433                                 ;;
 434
 435                         utc=*)
 436                                 UTC="${ARGUMENT#utc=}"
 437                                 export UTC
 438                                 ;;
 439
 440                         xdebconf)
 441                                 XDEBCONF="Yes"
 442                                 export XDEBCONF
 443                                 ;;
 444
 445                         xdriver=*)
 446                                 XDRIVER="${ARGUMENT#xdriver=}"
 447                                 export XDRIVER
 448                                 ;;
 449
 450                         xvideomode=*)
 451                                 XVIDEOMODE="${ARGUMENT#xvideomode=}"
 452                                 export XVIDEOMODE
 453                                 ;;
 454                 esac
 455         done
 456
 457         # sort of compatibility with netboot.h from linux docs
 458         if [ -z "${NETBOOT}" ]
 459         then
 460                 if [ "${ROOT}" = "/dev/nfs" ]
 461                 then
 462                         NETBOOT="nfs"
 463                         export NETBOOT
 464                 elif [ "${ROOT}" = "/dev/cifs" ]
 465                 then
 466                         NETBOOT="cifs"
 467                         export NETBOOT
 468                 fi
 469         fi
 470
 471         if [ -z "${MODULE}" ]
 472         then
 473                 MODULE="filesystem"
 474                 export MODULE
 475         fi
 476
 477         if [ -z "${UNIONTYPE}" ]
 478         then
 479                 UNIONTYPE="aufs"
 480                 export UNIONTYPE
 481         fi
 482 }
 483
 484 is_live_path ()
 485 {
 486         DIRECTORY="${1}"
 487
 488         if [ -d "${DIRECTORY}"/"${LIVE_MEDIA_PATH}" ]
 489         then
 490                 for FILESYSTEM in squashfs ext2 ext3 xfs dir jffs2
 491                 do
 492                         if [ "$(echo ${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM})" != "${DIRECTORY}/${LIVE_MEDIA_PATH}/*.${FILESYSTEM}" ]
 493                         then
 494                                 return 0
 495                         fi
 496                 done
 497         fi
 498
 499         return 1
 500 }
 501
 502 matches_uuid ()
 503 {
 504         if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
 505         then
 506                 return 0
 507         fi
 508
 509         path="${1}"
 510         uuid="$(cat /conf/uuid.conf)"
 511
 512         for try_uuid_file in "${mountpoint}/.disk/live-uuid"*
 513         do
 514                 [ -e "${try_uuid_file}" ] || continue
 515
 516                 try_uuid="$(cat "${try_uuid_file}")"
 517
 518                 if [ "${uuid}" = "${try_uuid}" ]
 519                 then
 520                         return 0
 521                 fi
 522         done
 523
 524         return 1
 525 }
 526
 527 get_backing_device ()
 528 {
 529         case "${1}" in
 530                 *.squashfs|*.ext2|*.ext3|*.jffs2)
 531                         echo $(setup_loop "${1}" "loop" "/sys/block/loop*" '0' "${LIVE_MEDIA_ENCRYPTION}" "${2}")
 532                         ;;
 533
 534                 *.dir)
 535                         echo "directory"
 536                         ;;
 537
 538                 *)
 539                         panic "Unrecognized live filesystem: ${1}"
 540                         ;;
 541         esac
 542 }
 543
 544 match_files_in_dir ()
 545 {
 546         # Does any files match pattern ${1} ?
 547         local pattern="${1}"
 548
 549         if [ "$(echo ${pattern})" != "${pattern}" ]
 550         then
 551                 return 0
 552         fi
 553
 554         return 1
 555 }
 556
 557 mount_images_in_directory ()
 558 {
 559         directory="${1}"
 560         rootmnt="${2}"
 561         mac="${3}"
 562
 563
 564         if match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.squashfs" ||
 565                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext2" ||
 566                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.ext3" ||
 567                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.jffs2" ||
 568                 match_files_in_dir "${directory}/${LIVE_MEDIA_PATH}/*.dir"
 569         then
 570                 [ -n "${mac}" ] && adddirectory="${directory}/${LIVE_MEDIA_PATH}/${mac}"
 571                 setup_unionfs "${directory}/${LIVE_MEDIA_PATH}" "${rootmnt}" "${adddirectory}"
 572         else
 573                 :
 574         fi
 575 }
 576
 577 is_nice_device ()
 578 {
 579         sysfs_path="${1#/sys}"
 580
 581         if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"
 582         then
 583                 return 0
 584         elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
 585         then
 586                 return 0
 587         fi
 588
 589         return 1
 590 }
 591
 592 copy_live_to ()
 593 {
 594         copyfrom="${1}"
 595         copytodev="${2}"
 596         copyto="${copyfrom}_swap"
 597
 598         if [ -z "${MODULETORAM}" ]
 599         then
 600                 size=$(fs_size "" ${copyfrom} "used")
 601         else
 602                 MODULETORAMFILE="${copyfrom}/${LIVE_MEDIA_PATH}/${MODULETORAM}"
 603
 604                 if [ -f "${MODULETORAMFILE}" ]
 605                 then
 606                         size=$( expr $(ls -la ${MODULETORAMFILE} | awk '{print $5}') / 1024 + 5000 )
 607                 else
 608                         log_warning_msg "Error: toram-module ${MODULETORAM} (${MODULETORAMFILE}) could not be read."
 609                         return 1
 610                 fi
 611         fi
 612
 613         if [ "${copytodev}" = "ram" ]
 614         then
 615                 # copying to ram:
 616                 freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ) )
 617                 mount_options="-o size=${size}k"
 618                 free_string="memory"
 619                 fstype="tmpfs"
 620                 dev="/dev/shm"
 621         else
 622                 # it should be a writable block device
 623                 if [ -b "${copytodev}" ]
 624                 then
 625                         dev="${copytodev}"
 626                         free_string="space"
 627                         fstype=$(get_fstype "${dev}")
 628                         freespace=$(fs_size "${dev}")
 629                 else
 630                         log_warning_msg "${copytodev} is not a block device."
 631                         return 1
 632                 fi
 633         fi
 634
 635         if [ "${freespace}" -lt "${size}" ]
 636         then
 637                 log_warning_msg "Not enough free ${free_string} (${freespace}k free, ${size}k needed) to copy live media in ${copytodev}."
 638                 return 1
 639         fi
 640
 641         # begin copying (or uncompressing)
 642         mkdir "${copyto}"
 643         echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
 644         mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 645
 646         if [ "${extension}" = "tgz" ]
 647         then
 648                 cd "${copyto}"
 649                 tar zxf "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 650                 rm -f "${copyfrom}/${LIVE_MEDIA_PATH}/$(basename ${FETCH})"
 651                 mount -r -o move "${copyto}" "${rootmnt}"
 652                 cd "${OLDPWD}"
 653         else
 654                 if [ -n "${MODULETORAMFILE}" ]
 655                 then
 656                         cp ${MODULETORAMFILE} ${copyto} # copy only the filesystem module
 657                 else
 658                         cp -a ${copyfrom}/* ${copyto}   # "cp -a" from busybox also copies hidden files
 659                 fi
 660
 661                 livefs_root
 662                 umount ${copyfrom}
 663                 mount -r -o move ${copyto} ${copyfrom}
 664         fi
 665
 666         rmdir ${copyto}
 667         return 0
 668 }
 669
 670 do_netmount ()
 671 {
 672         rc=1
 673
 674         modprobe -q af_packet # For DHCP
 675
 676         if [ -x /sbin/udevadm ]
 677         then
 678                 # lenny
 679                 udevadm trigger
 680                 udevadm settle
 681         else
 682                 # etch
 683                 udevtrigger
 684                 udevsettle
 685         fi
 686
 687         ipconfig ${DEVICE} | tee /netboot.config
 688
 689         # source relevant ipconfig output
 690         OLDHOSTNAME=${HOSTNAME}
 691         . /tmp/net-${DEVICE}.conf
 692         [ -z ${HOSTNAME} ] && HOSTNAME=${OLDHOSTNAME}
 693         export HOSTNAME
 694
 695         if [ "${NFSROOT}" = "auto" ]
 696         then
 697                 NFSROOT=${ROOTSERVER}:${ROOTPATH}
 698         fi
 699
 700         if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] ) && do_httpmount
 701         then
 702                 rc=0
 703                 return ${rc}
 704         fi
 705
 706         if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
 707         then
 708                 NFSROOT=${ROOTSERVER}:${NFSROOT}
 709         fi
 710
 711         log_begin_msg "Trying netboot from ${NFSROOT}"
 712
 713         if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
 714         then
 715                 rc=0
 716         elif do_nfsmount
 717         then
 718                 NETBOOT="nfs"
 719                 export NETBOOT
 720                 rc=0
 721         fi
 722
 723         log_end_msg
 724         return ${rc}
 725 }
 726
 727 do_httpmount ()
 728 {
 729         rc=1
 730         dest="${mountpoint}/${LIVE_MEDIA_PATH}"
 731         mount -t ramfs ram "${mountpoint}"
 732         mkdir -p "${dest}"
 733
 734         for webfile in HTTPFS FTPFS FETCH
 735         do
 736                 url="$(eval echo \"\$\{${webfile}\}\")"
 737                 extension="$(echo "${url}" | sed 's/\(.*\)\.\(.*\)/\2/')"
 738
 739                 if [ -n "$url" ]
 740                 then
 741                         case "${extension}" in
 742                                 squashfs|tgz|tar)
 743                                         if [ "${webfile}" = "FETCH" ]
 744                                         then
 745                                                 case "$url" in
 746                                                         tftp*)
 747                                                                 ip="$(dirname $url | sed -e 's|tftp://||g')"
 748                                                                 log_begin_msg "Trying tftp -g -b 10240 -r $(basename ${url})  -l ${dest}/$(basename ${url}) $ip"
 749                                                                 tftp -g -b 10240 -r $(basename ${url})  -l ${dest}/$(basename ${url}) $ip
 750                                                         ;;
 751
 752                                                         *)
 753                                                                 log_begin_msg "Trying wget ${url} -O ${dest}/$(basename ${url})"
 754                                                                 wget "${url}" -O "${dest}/$(basename ${url})"
 755                                                                 ;;
 756                                                 esac
 757                                         else
 758                                                 log_begin_msg "Trying to mount ${url} on ${dest}/$(basename ${url})"
 759                                                 if [ "${webfile}" = "FTPFS" ]
 760                                                 then
 761                                                         FUSE_MOUNT="curlftpfs"
 762                                                         url="$(dirname ${url})"
 763                                                 else
 764                                                         FUSE_MOUNT="httpfs"
 765                                                 fi
 766                                                 modprobe fuse
 767                                                 $FUSE_MOUNT "${url}" "${dest}"
 768                                         fi
 769                                         [ ${?} -eq 0 ] && rc=0
 770                                         [ "${extension}" = "tgz" ] && live_dest="ram"
 771                                         break
 772                                         ;;
 773
 774                                 *)
 775                                         log_begin_msg "Unrecognized archive extension for ${url}"
 776                                         ;;
 777                         esac
 778                 fi
 779         done
 780
 781         if [ ${rc} != 0 ]
 782         then
 783             umount "${mountpoint}"
 784         fi
 785
 786         return ${rc}
 787 }
 788
 789 do_nfsmount ()
 790 {
 791         rc=1
 792
 793         modprobe -q nfs
 794
 795         if [ -z "${NFSOPTS}" ]
 796         then
 797                 NFSOPTS=""
 798         fi
 799
 800         log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
 801
 802         # FIXME: This for loop is an ugly HACK round an nfs bug
 803         for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13
 804         do
 805                 nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
 806                 sleep 1
 807         done
 808
 809         return ${rc}
 810 }
 811
 812 do_cifsmount ()
 813 {
 814         rc=1
 815
 816         if [ -x "/sbin/mount.cifs" ]
 817         then
 818                 if [ -z "${NFSOPTS}" ]
 819                 then
 820                         CIFSOPTS="-ouser=root,password="
 821                 else
 822                         CIFSOPTS="${NFSOPTS}"
 823                 fi
 824
 825                 log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
 826                 modprobe -q cifs
 827
 828                 if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}"
 829                 then
 830                         rc=0
 831                 fi
 832         fi
 833
 834         return ${rc}
 835 }
 836
 837 do_snap_copy ()
 838 {
 839         fromdev="${1}"
 840         todir="${2}"
 841         snap_type="${3}"
 842         size=$(fs_size "${fromdev}" "" "used")
 843
 844         if [ -b "${fromdev}" ]
 845         then
 846                 # look for free mem
 847                 if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]
 848                 then
 849                         todev=$(cat /proc/mounts | grep -s " $(base_path ${todir}) " | awk '{print $1}' )
 850                         freespace=$(df -k  | grep -s ${todev} | awk '{print $4}')
 851                 else
 852                         freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ))
 853                 fi
 854
 855                 tomount="/mnt/tmpsnap"
 856
 857                 if [ ! -d "${tomount}" ]
 858                 then
 859                         mkdir -p "${tomount}"
 860                 fi
 861
 862                 fstype=$(get_fstype "${fromdev}")
 863
 864                 if [ -n "${fstype}" ]
 865                 then
 866                         # Copying stuff...
 867                         mount -o ro -t "${fstype}" "${fromdev}" "${tomount}" || log_warning_msg "Error in mount -t ${fstype} -o ro ${fromdev} ${tomount}"
 868                         cp -a "${tomount}"/* ${todir}
 869                         umount "${tomount}"
 870                 else
 871                         log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
 872                 fi
 873
 874                 rmdir "${tomount}"
 875
 876                 if echo ${fromdev} | grep -qs loop
 877                 then
 878                         losetup -d "${fromdev}"
 879                 fi
 880
 881                 return 0
 882         else
 883                 return 1
 884
 885                 log_warning_msg "Unable to find the snapshot ${snap_type} medium"
 886         fi
 887 }
 888
 889 find_snap ()
 890 {
 891         # Look for ${snap_label}.* in block devices
 892         snap_label="${1}"
 893
 894         if [ "${PERSISTENT}" != "nofiles" ]
 895         then
 896                 # search for image files
 897                 snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snap_label}.jffs2")
 898         fi
 899
 900         if [ -z "${snapdata}" ]
 901         then
 902                 snapdata=$(find_cow_device "${snap_label}")
 903         fi
 904         echo "${snapdata}"
 905 }
 906
 907 try_snap ()
 908 {
 909         # copy the contents of previously found snapshot to ${snap_mount}
 910         # and remember the device and filename for resync on exit in live-initramfs.init
 911
 912         snapdata="${1}"
 913         snap_mount="${2}"
 914         snap_type="${3}"
 915
 916         if [ ! -z "${snapdata}" ]
 917         then
 918                 log_success_msg "found snapshot: ${snapdata}"
 919                 snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
 920                 snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
 921                 snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
 922
 923                 RES=""
 924                 if ! try_mount "${snapdev}" "${snapback}" "ro"
 925                 then
 926                         break
 927                 fi
 928
 929                 if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\|ext3\|jffs2\)'
 930                 then
 931                         # squashfs, jffs2 or ext2/ext3 snapshot
 932                         dev=$(get_backing_device "${snapback}/${snapfile}")
 933
 934                         do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
 935                         RES=$?
 936                 else
 937                         # cpio.gz snapshot
 938                         cd "${snap_mount}"
 939                         zcat "${snapback}/${snapfile}" | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories > /dev/null 2>&1
 940                         RES=$?
 941                         if [ "${RES}" != "0" ]
 942                         then
 943                                 log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories\""
 944                         fi
 945                         cd "${OLDPWD}"
 946                 fi
 947
 948                 umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
 949
 950                 if [ "${RES}" != "0" ]
 951                 then
 952                         log_warning_msg "Impossible to include the ${snapfile} Snapshot file"
 953                 fi
 954
 955
 956         elif [ -b "${snapdata}" ]
 957         then
 958                 # Try to find if it could be a snapshot partition
 959                 dev="${snapdata}"
 960                 log_success_msg "found snapshot device on ${dev}"
 961                 if echo "${dev}" | grep -qs loop
 962                 then
 963                         # strange things happens, user confused?
 964                         snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
 965                         snapfile=$(basename ${snaploop})
 966                         snapdev=$(cat /proc/mounts | awk '{print $2,$1}' | grep -es "^$( dirname ${snaploop} )" | cut -f2 -d ' ')
 967                 else
 968                         snapdev="${dev}"
 969                 fi
 970
 971                 if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"
 972                 then
 973                         log_warning_msg "Impossible to include the ${snap_type} Snapshot"
 974                         return 1
 975                 else
 976                         if [ -n "${snapfile}" ]
 977                         then
 978                                 # it was a loop device, user confused
 979                                 umount ${snapdev}
 980                         fi
 981                 fi
 982         else
 983                 log_warning_msg "Impossible to include the ${snap_type} Snapshot"
 984                 return 1
 985         fi
 986
 987         echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt
 988         return 0
 989 }
 990
 991 setup_unionfs ()
 992 {
 993         image_directory="${1}"
 994         rootmnt="${2}"
 995         addimage_directory="${3}"
 996         modprobe -q -b ${UNIONTYPE}
 997
 998         # run-init can't deal with images in a subdir, but we're going to
 999         # move all of these away before it runs anyway.  No, we're not,
1000         # put them in / since move-mounting them into / breaks mono and
1001         # some other apps.
1002
1003         croot="/"
1004
1005         # Let's just mount the read-only file systems first
1006         rofsstring=""
1007         rofslist=""
1008         minor_kernel_version=$(uname -r|cut -c 5-|sed 's/[^0-9].*//')
1009
1010         if [ "${NETBOOT}" = "nfs" ] && [ "${minor_kernel_version}" -lt 22 ]
1011         then
1012                 # go aroung a bug in nfs-unionfs locking for unionfs <= 1.4
1013                 roopt="nfsro"
1014         elif [ "${UNIONTYPE}" = "aufs" ]
1015         then
1016                 roopt="rr"
1017         else
1018                 roopt="ro"
1019         fi
1020
1021         # Read image names from ${MODULE}.module if it exists
1022         if [ -e "${image_directory}/filesystem.${MODULE}.module" ]
1023         then
1024                 for IMAGE in $(cat ${image_directory}/filesystem.${MODULE}.module)
1025                 do
1026                         image_string="${image_string} ${image_directory}/${IMAGE}"
1027                 done
1028         elif [ -e "${image_directory}/${MODULE}.module" ]
1029         then
1030                 for IMAGE in $(cat ${image_directory}/${MODULE}.module)
1031                 do
1032                         image_string="${image_string} ${image_directory}/${IMAGE}"
1033                 done
1034         else
1035                 # ${MODULE}.module does not exist, create a list of images
1036                 for FILESYSTEM in squashfs ext2 ext3 xfs jffs2 dir
1037                 do
1038                         for IMAGE in "${image_directory}"/*."${FILESYSTEM}"
1039                         do
1040                                 if [ -e "${IMAGE}" ]
1041                                 then
1042                                         image_string="${image_string} ${IMAGE}"
1043                                 fi
1044                         done
1045                 done
1046
1047                 if [ -n "${addimage_directory}" ] && [ -d "${addimage_directory}" ]
1048                 then
1049                         for FILESYSTEM in squashfs ext2 ext3 xfs jffs2 dir
1050                         do
1051                                 for IMAGE in "${addimage_directory}"/*."${FILESYSTEM}"
1052                                 do
1053                                         if [ -e "${IMAGE}" ]
1054                                         then
1055                                                 image_string="${image_string} ${IMAGE}"
1056                                         fi
1057                                 done
1058                         done
1059                 fi
1060
1061                 # Now sort the list
1062                 image_string="$(echo ${image_string} | sed -e 's/ /\n/g' | sort )"
1063         fi
1064
1065         [ -n "${MODULETORAMFILE}" ] && image_string="${image_directory}/$(basename ${MODULETORAMFILE})"
1066
1067         mkdir -p "${croot}"
1068
1069         for image in ${image_string}
1070         do
1071                 imagename=$(basename "${image}")
1072
1073                 if [ -d "${image}" ]
1074                 then
1075                         # it is a plain directory: do nothing
1076                         rofsstring="${image}=${roopt}:${rofsstring}"
1077                         rofslist="${image} ${rofslist}"
1078                 elif [ -f "${image}" ]
1079                 then
1080                         if losetup --help 2>&1 | grep -q -- "-r\b"
1081                         then
1082                                 backdev=$(get_backing_device "${image}" "-r")
1083                         else
1084                                 backdev=$(get_backing_device "${image}")
1085                         fi
1086                         fstype=$(get_fstype "${backdev}")
1087
1088                         if [ "${fstype}" = "unknown" ]
1089                         then
1090                                 panic "Unknown file system type on ${backdev} (${image})"
1091                         fi
1092
1093                         if [ -z "${fstype}" ]
1094                         then
1095                                 fstype="${imagename##*.}"
1096                                 log_warning_msg "Unknown file system type on ${backdev} (${image}), assuming ${fstype}."
1097                         fi
1098
1099                         mkdir -p "${croot}/${imagename}"
1100                         log_begin_msg "Mounting \"${image}\" on \"${croot}${imagename}\" via \"${backdev}\""
1101                         mount -t "${fstype}" -o ro,noatime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
1102                         log_end_msg
1103                 fi
1104         done
1105
1106         rofsstring=${rofsstring%:}
1107
1108         mkdir -p /cow
1109
1110         # Looking for "${root_persistence}" device or file
1111         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1112         then
1113                 # Load USB modules
1114                 num_block=$(ls -l /sys/block | wc -l)
1115                 for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
1116                 do
1117                         modprobe -q -b ${module}
1118                 done
1119
1120                 if [ -x /sbin/udevadm ]
1121                 then
1122                         # lenny
1123                         udevadm trigger
1124                         udevadm settle
1125                 else
1126                         # etch
1127                         udevtrigger
1128                         udevsettle
1129                 fi
1130
1131                 # For some reason, udevsettle does not block in this scenario,
1132                 # so we sleep for a little while.
1133                 #
1134                 # See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
1135                 for timeout in 5 4 3 2 1
1136                 do
1137                         sleep 1
1138
1139                         if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
1140                         then
1141                                 break
1142                         fi
1143                 done
1144
1145                 # search for label and files (this could be hugely optimized)
1146                 cowprobe=$(find_cow_device "${root_persistence}")
1147                 if [ -b "${cowprobe}" ]
1148                 then
1149                         # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots
1150                         # makes sense to have both persistence for /cow and /home mounted, maybe also with
1151                         # snapshots to be sure to really store some e.g key config files,
1152                         # but not on the same media
1153                         blacklistdev="${cowprobe}"
1154                         PERSISTENCE_IS_ON="1"
1155                         export PERSISTENCE_IS_ON
1156                 fi
1157                 # homecow just mount something on /home, this should be generalized some way
1158                 homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}")
1159                 if [ -b "${homecow}" ]
1160                 then
1161                         PERSISTENCE_IS_ON="1"
1162                         export PERSISTENCE_IS_ON
1163                 fi
1164                 root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}")
1165                 # This second type should be removed when snapshot will get smarter,
1166                 # hence when "/etc/live-snapshot*list" will be supported also by
1167                 # ext2|ext3|jffs2 snapshot types.
1168                 home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}")
1169
1170                 if [ -b "${cowprobe}" ]
1171                 then
1172                         cowdevice=${cowprobe}
1173                         cow_fstype=$(get_fstype "${cowprobe}")
1174                         cow_mountopt="rw,noatime"
1175                 else
1176                         log_warning_msg "Unable to find the persistent medium"
1177                         cowdevice="tmpfs"
1178                         cow_fstype="tmpfs"
1179                         cow_mountopt="rw,noatime,mode=755"
1180                 fi
1181         elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
1182         then
1183                 # check if there are any nfs options
1184                 if echo ${NFS_COW}|grep -q ','
1185                 then
1186                         nfs_cow_opts="-o nolock,$(echo ${NFS_COW}|cut -d, -f2-)"
1187                         nfs_cow=$(echo ${NFS_COW}|cut -d, -f1)
1188                 else
1189                         nfs_cow_opts="-o nolock"
1190                         nfs_cow=${NFS_COW}
1191                 fi
1192                 mac="$(get_mac)"
1193                 if [ -n "${mac}" ]
1194                 then
1195                         cowdevice=$(echo ${nfs_cow}|sed "s/client_mac_address/${mac}/")
1196                         cow_fstype="nfs"
1197                 else
1198                         panic "unable to determine mac address"
1199                 fi
1200         else
1201                 cowdevice="tmpfs"
1202                 cow_fstype="tmpfs"
1203                 cow_mountopt="rw,noatime,mode=755"
1204         fi
1205
1206         if [ "${cow_fstype}" = "nfs" ]
1207         then
1208                 log_begin_msg \
1209                         "Trying nfsmount ${nfs_cow_opts} ${cowdevice} /cow"
1210                 nfsmount ${nfs_cow_opts} ${cowdevice} /cow || \
1211                         panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on /cow"
1212         else
1213                 mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} /cow || \
1214                         panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on /cow"
1215         fi
1216
1217         rofscount=$(echo ${rofslist} |wc -w)
1218
1219         if [ -n "${EXPOSED_ROOT}" ]
1220         then
1221                 if [ ${rofscount} -ne 1 ]
1222                 then
1223                         panic "only one RO file system supported with exposedroot: ${rofslist}"
1224                 fi
1225                 exposedrootfs=${rofslist%% }
1226
1227                 mount --bind ${exposedrootfs} ${rootmnt} || \
1228                         panic "bind mount of ${exposedrootfs} failed"
1229
1230                 cow_dirs='/var/tmp /var/lock /var/run /var/log /var/spool
1231                         /home /var/lib/live'
1232
1233                 for dir in ${cow_dirs}; do
1234                         mkdir -p /cow${dir}
1235                         mount -t ${UNIONTYPE} \
1236                                 -o rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro \
1237                                 ${UNIONTYPE} "${rootmnt}${dir}" || \
1238                                 panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option \
1239                                         rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro"
1240                 done
1241         else
1242                 mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} \
1243                         ${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on \
1244                         ${rootmnt} failed with option noatime,dirs=/cow=rw:${rofsstring}"
1245         fi
1246
1247         # tmpfs file systems
1248         touch /etc/fstab
1249         mkdir -p "${rootmnt}/live"
1250         mount -t tmpfs tmpfs ${rootmnt}/live
1251
1252         # Adding other custom mounts
1253         if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
1254         then
1255                 # directly mount /home
1256                 # FIXME: add a custom mounts configurable system
1257
1258                 if [ -b "${homecow}" ]
1259                 then
1260                         mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
1261                         export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
1262                 else
1263                         log_warning_msg "Unable to find the persistent home medium"
1264                 fi
1265
1266                 # Look for other snapshots to copy in
1267                 try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
1268                 # This second type should be removed when snapshot grow smarter
1269                 try_snap "${home_snapdata}" "${rootmnt}/home" "HOME"
1270         fi
1271
1272         if [ -n "${SHOWMOUNTS}" ]
1273         then
1274                 for d in ${rofslist}
1275                 do
1276                         mkdir -p "${rootmnt}/live/${d##*/}"
1277
1278                         case d in
1279                                 *.dir)
1280                                         # do nothing # mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
1281                                         ;;
1282
1283                                 *)
1284                                         mount -o move "${d}" "${rootmnt}/live/${d##*/}"
1285                                         ;;
1286                         esac
1287                 done
1288         fi
1289
1290         # shows cow fs on /cow for use by live-snapshot
1291         mkdir -p "${rootmnt}/live/cow"
1292         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 ${rootmnt}/live/cow"
1293 }
1294
1295 check_dev ()
1296 {
1297         sysdev="${1}"
1298         devname="${2}"
1299         skip_uuid_check="${3}"
1300
1301         if [ -z "${devname}" ]
1302         then
1303                 devname=$(sys2dev "${sysdev}")
1304         fi
1305
1306         if [ -d "${devname}" ]
1307         then
1308                 mount -o bind "${devname}" $mountpoint || continue
1309
1310                 if is_live_path $mountpoint
1311                 then
1312                         echo $mountpoint
1313                         return 0
1314                 else
1315                         umount $mountpoint
1316                 fi
1317         fi
1318
1319         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1320         then
1321                 loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVE_MEDIA_OFFSET}" '')
1322                 devname="${loopdevname}"
1323         fi
1324
1325         fstype=$(get_fstype "${devname}")
1326
1327         if is_supported_fs ${fstype}
1328         then
1329                 mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
1330
1331                 if is_live_path ${mountpoint} && \
1332                         ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
1333                 then
1334                         echo ${mountpoint}
1335                         return 0
1336                 else
1337                         umount ${mountpoint}
1338                 fi
1339         fi
1340
1341         if [ -n "${LIVE_MEDIA_OFFSET}" ]
1342         then
1343                 losetup -d "${loopdevname}"
1344         fi
1345
1346         return 1
1347 }
1348
1349 find_livefs ()
1350 {
1351         timeout="${1}"
1352
1353         # first look at the one specified in the command line
1354         if [ ! -z "${LIVE_MEDIA}" ]
1355         then
1356                 if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
1357                 then
1358                         return 0
1359                 fi
1360         fi
1361
1362         # don't start autodetection before timeout has expired
1363         if [ -n "${LIVE_MEDIA_TIMEOUT}" ]
1364         then
1365                 if [ "${timeout}" -lt "${LIVE_MEDIA_TIMEOUT}" ]
1366                 then
1367                         return 1
1368                 fi
1369         fi
1370
1371         # or do the scan of block devices
1372         for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram | grep -v 'dm-' | grep -v fd )
1373         do
1374                 devname=$(sys2dev "${sysblock}")
1375                 fstype=$(get_fstype "${devname}")
1376
1377                 if /lib/udev/cdrom_id ${devname} > /dev/null
1378                 then
1379                         if check_dev "null" "${devname}"
1380                         then
1381                                 return 0
1382                         fi
1383                 elif is_nice_device "${sysblock}"
1384                 then
1385                         for dev in $(subdevices "${sysblock}")
1386                         do
1387                                 if check_dev "${dev}"
1388                                 then
1389                                         return 0
1390                                 fi
1391                         done
1392                 elif [ "${fstype}" = "squashfs" -o \
1393                         "${fstype}" = "ext2" -o \
1394                         "${fstype}" = "ext3" -o \
1395                         "${fstype}" = "jffs2" ]
1396                 then
1397                         # This is an ugly hack situation, the block device has
1398                         # an image directly on it.  It's hopefully
1399                         # live-initramfs, so take it and run with it.
1400                         ln -s "${devname}" "${devname}.${fstype}"
1401                         echo "${devname}.${fstype}"
1402                         return 0
1403                 fi
1404         done
1405
1406         return 1
1407 }
1408
1409 set_usplash_timeout ()
1410 {
1411         if [ -x /sbin/usplash_write ]
1412         then
1413                 /sbin/usplash_write "TIMEOUT 120"
1414         else if [ -x /sbin/splashy_update ] ; then
1415                 /sbin/splashy_update "TIMEOUT 120"
1416         fi ; fi
1417 }
1418
1419 mountroot ()
1420 {
1421         if [ -x /scripts/local-top/cryptroot ]; then
1422             /scripts/local-top/cryptroot
1423         fi
1424
1425         exec 6>&1
1426         exec 7>&2
1427         exec > live.log
1428         exec 2>&1
1429         tail -f live.log >&7 &
1430         tailpid="${!}"
1431
1432         # Ensure 'panic' function is overridden
1433         . /scripts/live-functions
1434
1435         Arguments
1436
1437         set_usplash_timeout
1438
1439         maybe_break live-premount
1440         log_begin_msg "Running /scripts/live-premount"
1441         run_scripts /scripts/live-premount
1442         log_end_msg
1443
1444         # Needed here too because some things (*cough* udev *cough*)
1445         # changes the timeout
1446
1447         set_usplash_timeout
1448
1449         if [ ! -z "${NETBOOT}" ] || [ ! -z "${FETCH}" ] || [ ! -z "${HTTPFS}" ] || [ ! -z "${FTPFS}" ]
1450         then
1451                 if do_netmount
1452                 then
1453                         livefs_root="${mountpoint}"
1454                 else
1455                         panic "Unable to find a live file system on the network"
1456                 fi
1457         else
1458                 if [ -n "${PLAIN_ROOT}" ] && [ -n "${ROOT}" ]
1459                 then
1460                         # Do a local boot from hd
1461                         livefs_root=${ROOT}
1462                 else
1463                         # Scan local devices for the image
1464                         for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
1465                         do
1466                                 livefs_root=$(find_livefs ${i})
1467
1468                                 if [ -n "${livefs_root}" ]
1469                                 then
1470                                         break
1471                                 fi
1472
1473                                 sleep 1
1474                         done
1475                 fi
1476         fi
1477
1478         if [ -z "${livefs_root}" ]
1479         then
1480                 panic "Unable to find a medium containing a live file system"
1481         fi
1482
1483         if [ "${TORAM}" ]
1484         then
1485                 live_dest="ram"
1486         elif [ "${TODISK}" ]
1487         then
1488                 live_dest="${TODISK}"
1489         fi
1490
1491         if [ "${live_dest}" ]
1492         then
1493                 log_begin_msg "Copying live media to ${live_dest}"
1494                 copy_live_to "${livefs_root}" "${live_dest}"
1495                 log_end_msg
1496         fi
1497
1498         if [ -n "${MODULETORAMFILE}" ]
1499         then
1500                 setup_unionfs "${livefs_root}" "${rootmnt}"
1501         else
1502                 mac="$(get_mac)"
1503                 mac="$(echo ${mac} | sed 's/-//g')"
1504                 mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}"
1505         fi
1506
1507         log_end_msg
1508
1509         maybe_break live-bottom
1510         log_begin_msg "Running /scripts/live-bottom"
1511
1512         run_scripts /scripts/live-bottom
1513         log_end_msg
1514
1515         exec 1>&6 6>&-
1516         exec 2>&7 7>&-
1517         kill ${tailpid}
1518         cp live.log "${rootmnt}/var/log/"
1519 }