git.sur5r.net Git - bacula/rescue/blob - rescue/linux/usb/prebuilt/casper

   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 mountpoint=/cdrom
   8
   9 USERNAME=casper
  10 USERFULLNAME="Live session user"
  11 HOST=live
  12 BUILD_SYSTEM=Custom
  13
  14 mkdir -p $mountpoint
  15
  16 [ -f /etc/casper.conf ] && . /etc/casper.conf
  17 export USERNAME USERFULLNAME HOST BUILD_SYSTEM
  18
  19 . /scripts/casper-helpers
  20
  21 if [ ! -f /casper.vars ]; then
  22     touch /casper.vars
  23 fi
  24
  25 # Pendrivelinux fix
  26
  27 parse_cmdline ()
  28 {
  29     PRESEEDS=
  30     # looking for casper specifics options as kernel parameters
  31     for x in $(cat /proc/cmdline); do
  32         case $x in
  33             userfullname=*)
  34                 export USERFULLNAME=${x#userfullname=}
  35                 export CASPERCONF="changed"
  36                 ;;
  37             hostname=*)
  38                 export HOSTNAME=${x#hostname=}
  39                 export CASPERCONF="changed"
  40                 ;;
  41             username=*)
  42                 export USERNAME=${x#username=}
  43                 export CASPERCONF="changed"
  44                 ;;
  45             netboot*)
  46                 export NETBOOT=${x#netboot=} ;;
  47             access=*)
  48                 export ACCESS=${x#access=} ;;
  49             xdebconf)
  50                 export XDEBCONF="Yes" ;;
  51             toram)
  52                 export TORAM="Yes" ;;
  53             todisk=*)
  54                 export TODISK=${x#todisk=} ;;
  55             showmounts)
  56                 export SHOWMOUNTS="Yes" ;;
  57             persistent)
  58                 export PERSISTENT="Yes" ;;
  59             nopersistent)
  60                 export PERSISTENT="" ;;
  61             ip*)
  62                 STATICIP=${x#ip=}
  63                 if [ "${STATICIP}" == "" ]; then
  64                     STATICIP="frommedia"
  65                 fi
  66                 export STATICIP ;;
  67             casper-getty)
  68                 export CASPERGETTY=1 ;;
  69             bootfrom=*|live-media=*)
  70                 export LIVEMEDIA=${x#*=} ;;
  71             live-media-encryption=*|encryption=*)
  72                 export LIVEMEDIA_ENCRYPTION=${x#*=} ;;
  73             live-media-timeout=*)
  74                 export LIVEMEDIA_TIMEOUT=${x#live-media-timeout=} ;;
  75             live-media-offset=*)
  76                 export LIVEMEDIA_OFFSET=${x#live-media-offset=} ;;
  77             locale=*|debian-installer/locale=*)
  78                 export LOCALE=${x#*=} ;;
  79             keyb=*|kbd-chooser/method=*)
  80                 export KBD=${x#*=} ;;
  81             klayout=*|console-setup/layoutcode=*)
  82                 export KLAYOUT=${x#*=} ;;
  83             koptions=*)
  84                 export KOPTIONS=${x#koptions=} ;;
  85             kvariant=*|console-setup/variantcode=*)
  86                 export KVARIANT=${x#*=} ;;
  87             kmodel=*|console-setup/modelcode=*)
  88                 export KMODEL=${x#*=} ;;
  89             module=*)
  90                 export MODULE=${x#module=} ;;
  91             preseed/file=*|file=*)
  92                 export LOCATION="${x#*=}" ;;
  93             */*=*)
  94                 question="${x%%=*}"
  95                 value="${x#*=}"
  96                 PRESEEDS="${PRESEEDS}\"${question}=${value}\" "
  97                 ;;
  98             console=*)
  99                 export DEFCONSOLE="${x#*=}" ;;
 100         esac
 101     done
 102
 103     # sort of compatibility with netboot.h from linux docs
 104     if [ -z "${NETBOOT}" ]; then
 105         if [ "${ROOT}" == "/dev/nfs" ]; then
 106             NETBOOT="nfs"
 107             export NETBOOT
 108         elif [ "${ROOT}" == "/dev/cifs" ]; then
 109             NETBOOT="cifs"
 110             export NETBOOT
 111         fi
 112     fi
 113
 114     if [ -z "${MODULE}" ]; then
 115         MODULE=order
 116     fi
 117 }
 118
 119 # Pendrivelinux fix ended
 120
 121 is_casper_path() {
 122     path=$1
 123     if [ -d "$path/casper" ]; then
 124         if [ "$(echo $path/casper/*.squashfs)" != "$path/casper/*.squashfs" ] ||
 125             [ "$(echo $path/casper/*.ext2)" != "$path/casper/*.ext2" ] ||
 126             [ "$(echo $path/casper/*.dir)" != "$path/casper/*.dir" ]; then
 127             return 0
 128         fi
 129     fi
 130     return 1
 131 }
 132
 133 get_backing_device() {
 134     case "$1" in
 135         *.squashfs|*.ext2)
 136             echo $(setup_loop "$1" "loop" "/sys/block/loop*")
 137             ;;
 138         *.dir)
 139             echo "directory"
 140             ;;
 141         *)
 142             panic "Unrecognized casper filesystem: $1"
 143             ;;
 144     esac
 145 }
 146
 147 match_files_in_dir() {
 148     # Does any files match pattern $1 ?
 149
 150     local pattern="$1"
 151     if [ "$(echo $pattern)" != "$pattern" ]; then
 152         return 0
 153     fi
 154     return 1
 155 }
 156
 157 mount_images_in_directory() {
 158     directory="$1"
 159     rootmnt="$2"
 160     if match_files_in_dir "$directory/casper/*.squashfs" ||
 161         match_files_in_dir "$directory/casper/*.ext2" ||
 162         match_files_in_dir "$directory/casper/*.dir"; then
 163         setup_unionfs "$directory/casper" "$rootmnt"
 164     else
 165         :
 166     fi
 167 }
 168
 169 is_nice_device() {
 170     sysfs_path="${1#/sys}"
 171     if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"; then
 172         return 0
 173     fi
 174     return 1
 175 }
 176
 177 is_supported_fs () {
 178     # FIXME: do something better like the scan of supported filesystems
 179     fstype="${1}"
 180     case ${fstype} in
 181         vfat|iso9660|udf|ext2|ext3|ntfs)
 182             return 0
 183             ;;
 184     esac
 185     return 1
 186 }
 187
 188 copy_live_to() {
 189     copyfrom="${1}"
 190     copytodev="${2}"
 191     copyto="${copyfrom}_swap"
 192
 193     size=$(fs_size "" ${copyfrom} "used")
 194
 195     if [ "${copytodev}" = "ram" ]; then
 196         # copying to ram:
 197         freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ) )
 198         mount_options="-o size=${size}k"
 199         free_string="memory"
 200         fstype="tmpfs"
 201         dev="/dev/shm"
 202     else
 203         # it should be a writable block device
 204         if [ -b "${copytodev}" ]; then
 205             dev="${copytodev}"
 206             free_string="space"
 207             fstype=$(get_fstype "${dev}")
 208             freespace=$(fs_size "${dev}")
 209         else
 210             [ "$quiet" != "y" ] && log_warning_msg "${copytodev} is not a block device."
 211             return 1
 212         fi
 213     fi
 214     if [ "${freespace}" -lt "${size}" ] ; then
 215         [ "$quiet" != "y" ] && log_warning_msg "Not enough free ${free_string} (${freespace}k > ${size}k) to copy live media in ${copytodev}."
 216         return 1
 217     fi
 218
 219     # begin copying..
 220     mkdir "${copyto}"
 221     echo "mount -t ${fstype} ${mount_options} ${dev} ${copyto}"
 222     mount -t "${fstype}" ${mount_options} "${dev}" "${copyto}"
 223
 224     # add by penk
 225     for target in autorun.inf boot boot.catalog casper info initrd.gz logo.ico misc opt vmlinuz; do
 226         cp -a ${copyfrom}/${target} ${copyto} # "cp -a" from busybox also copies hidden files
 227     done
 228
 229     umount ${copyfrom}
 230     mount -r -o move ${copyto} ${copyfrom}
 231     rmdir ${copyto}
 232     return 0
 233 }
 234
 235 do_netmount() {
 236     rc=1
 237
 238     modprobe "${MP_QUIET}" af_packet # For DHCP
 239
 240     ipconfig ${DEVICE} /tmp/net-${DEVICE}.conf | tee /netboot.config
 241
 242     if [ "${NFSROOT}" = "auto" ]; then
 243         NFSROOT=${ROOTSERVER}:${ROOTPATH}
 244     fi
 245
 246     [ "$quiet" != "y" ] && log_begin_msg "Trying netboot from ${NFSROOT}"
 247
 248     if [ "${NETBOOT}" != "nfs" ] && do_cifsmount ; then
 249         rc=0
 250     elif do_nfsmount ; then
 251         NETBOOT="nfs"
 252         export NETBOOT
 253         rc=0
 254     fi
 255
 256     [ "$quiet" != "y" ] && log_end_msg
 257     return ${rc}
 258 }
 259
 260 do_nfsmount() {
 261     rc=1
 262     modprobe "${MP_QUIET}" nfs
 263     if [ -z "${NFSOPTS}" ]; then
 264         NFSOPTS=""
 265     fi
 266
 267     [ "$quiet" != "y" ] && log_begin_msg "Trying nfsmount -o nolock -o ro ${NFSOPTS} ${NFSROOT} ${mountpoint}"
 268     # FIXME: This for loop is an ugly HACK round an nfs bug
 269     for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13; do
 270         nfsmount -o nolock -o ro ${NFSOPTS} "${NFSROOT}" "${mountpoint}" && rc=0 && break
 271         sleep 1
 272     done
 273     return ${rc}
 274 }
 275
 276 do_cifsmount() {
 277     rc=1
 278     if [ -x "/sbin/mount.cifs" ]; then
 279         if [ -z "${NFSOPTS}" ]; then
 280             CIFSOPTS="-ouser=root,password="
 281         else
 282             CIFSOPTS="${NFSOPTS}"
 283         fi
 284
 285         [ "$quiet" != "y" ] && log_begin_msg "Trying mount.cifs ${NFSROOT} ${mountpoint} ${CIFSOPTS}"
 286         modprobe "${MP_QUIET}" cifs
 287
 288         if mount.cifs "${NFSROOT}" "${mountpoint}" "${CIFSOPTS}" ; then
 289             rc=0
 290         fi
 291     fi
 292     return ${rc}
 293 }
 294
 295 do_snap_copy ()
 296 {
 297     fromdev="${1}"
 298     todir="${2}"
 299     snap_type="${3}"
 300
 301     size=$(fs_size "${fromdev}" "" "used")
 302
 303     if [ -b "${fromdev}" ]; then
 304         # look for free mem
 305         if [ -n "${HOMEMOUNTED}" -a "${snap_type}" = "HOME" ]; then
 306             todev=$(cat /proc/mounts | grep -s " $(base_path ${todir}) " | awk '{print $1}' )
 307             freespace=$(df -k  | grep -s ${todev} | awk '{print $4}')
 308         else
 309             freespace=$( expr $(awk '/MemFree/{print $2}' /proc/meminfo) + $( cat /proc/meminfo | grep Cached | head -n 1 | awk '/Cached/{print $2}' - ))
 310         fi
 311
 312         tomount="/mnt/tmpsnap"
 313         if [ ! -d "${tomount}" ] ; then
 314             mkdir -p "${tomount}"
 315         fi
 316
 317         fstype=$(get_fstype "${fromdev}")
 318         if [ -n "${fstype}" ]; then
 319             # Copying stuff...
 320             mount -t "${fstype}" -o ro "${fromdev}" "${tomount}"
 321             cp -a "${tomount}"/* ${todir}
 322             umount "${tomount}"
 323         else
 324             log_warning_msg "Unrecognized fstype: ${fstype} on ${fromdev}:${snap_type}"
 325         fi
 326
 327         rmdir "${tomount}"
 328         if echo ${fromdev} | grep -qs loop; then
 329            losetup -d "${fromdev}"
 330         fi
 331         return 0
 332     else
 333         return 1
 334         [ "$quiet" != "y" ] && log_warning_msg "Unable to find the snapshot ${snap_type} medium"
 335     fi
 336 }
 337
 338 try_snap ()
 339 {
 340     # Look for $snap_label.* in block devices and copy the contents to $snap_mount
 341     #   and remember the device and filename for resync on exit in casper.init
 342
 343     snap_label="${1}"
 344     snap_mount="${2}"
 345     snap_type="${3}"
 346
 347     snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2")
 348     if [ ! -z "${snapdata}" ]; then
 349         snapdev="$(echo ${snapdata} | cut -f1 -d ' ')"
 350         snapback="$(echo ${snapdata} | cut -f2 -d ' ')"
 351         snapfile="$(echo ${snapdata} | cut -f3 -d ' ')"
 352         if echo "${snapfile}" | grep -qs '\(squashfs\|ext2\)'; then
 353             # squashfs or ext2 snapshot
 354             dev=$(get_backing_device "${snapback}/${snapfile}")
 355             if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}"; then
 356                  log_warning_msg "Impossible to include the ${snapfile} Snapshot"
 357                  return 1
 358             fi
 359         else
 360             # cpio.gz snapshot
 361             if ! (cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | cpio -i -u -d 2>/dev/null) ; then
 362                 log_warning_msg "Impossible to include the ${snapfile} Snapshot"
 363                 return 1
 364             fi
 365         fi
 366         umount "${snapback}"
 367     else
 368         dev=$(find_cow_device "${snap_label}")
 369         if [ -b ${dev} ]; then
 370             if echo "${dev}" | grep -qs loop; then
 371                 # strange things happens, user confused?
 372                 snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )
 373                 snapfile=$(basename ${snaploop})
 374                 snapdev=$(cat /proc/mounts | awk '{print $2,$1}' | grep -es "^$( dirname ${snaploop} )" | cut -f2 -d ' ')
 375             else
 376                 snapdev="${dev}"
 377             fi
 378             if ! do_snap_copy "${dev}" "${snap_mount}" "${snap_type}" ; then
 379                 log_warning_msg "Impossible to include the ${snap_label} Snapshot"
 380                 return 1
 381             else
 382                 if [ -n "${snapfile}" ]; then
 383                      # it was a loop device, user confused
 384                      umount ${snapdev}
 385                 fi
 386             fi
 387         else
 388             log_warning_msg "Impossible to include the ${snap_label} Snapshot"
 389             return 1
 390         fi
 391     fi
 392     echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/casper.conf # for resync on reboot/halt
 393     return 0
 394 }
 395
 396 setup_unionfs() {
 397     image_directory="$1"
 398     rootmnt="$2"
 399
 400     modprobe squashfs
 401
 402     # run-init can't deal with images in a subdir, but we're going to
 403     # move all of these away before it runs anyway.  No, we're not,
 404     # put them in / since move-mounting them into / breaks mono and
 405     # some other apps.
 406
 407     croot="/"
 408
 409     # Let's just mount the read-only file systems first
 410     rofsstring=""
 411     rofslist=""
 412     if [ "${NETBOOT}" = "nfs" ] ; then
 413         roopt="nfsro" # go aroung a bug in nfs-unionfs locking
 414     else
 415         roopt="ro"
 416     fi
 417
 418     mkdir -p "${croot}"
 419     for image_type in "ext2" "squashfs" "dir" ; do
 420         for image in "${image_directory}"/*."${image_type}"; do
 421             imagename=$(basename "${image}")
 422             if [ -d "${image}" ]; then
 423                 # it is a plain directory: do nothing
 424                 rofsstring="${image}=${roopt}:${rofsstring}"
 425                 rofslist="${image} ${rofslist}"
 426             elif [ -f "${image}" ]; then
 427                 backdev=$(get_backing_device "$image")
 428                 fstype=$(get_fstype "${backdev}")
 429                 if [ "${fstype}" = "unknown" ]; then
 430                     panic "Unknown file system type on ${backdev} (${image})"
 431                 fi
 432                 if [ -z "${fstype}" ]; then
 433                     fstype=squashfs
 434                 fi
 435                 mkdir -p "${croot}/${imagename}"
 436                 mount -t "${fstype}" -o ro "${backdev}" "${croot}/${imagename}" || panic "Can not mount $backdev ($image) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
 437             fi
 438         done
 439     done
 440     rofsstring=${rofsstring%:}
 441
 442     mkdir -p /cow
 443     cowdevice="tmpfs"
 444     cow_fstype="tmpfs"
 445
 446     # Looking for "${root_persistence}" device or file
 447     if [ -n "${PERSISTENT}" ]; then
 448         cowprobe=$(find_cow_device "${root_persistence}")
 449         if [ -b "${cowprobe}" ]; then
 450             cowdevice=${cowprobe}
 451             cow_fstype=$(get_fstype "${cowprobe}")
 452         else
 453             [ "$quiet" != "y" ] && log_warning_msg "Unable to find the persistent medium"
 454         fi
 455     fi
 456
 457     mount ${cowdevice} -t ${cow_fstype} -o rw /cow || panic "Can not mount $cowdevice on /cow"
 458
 459     # add by penk
 460     if grep -q aufs /proc/cmdline; then
 461         modprobe aufs
 462         mount -t aufs -o dirs=/cow=rw:$rofsstring unionfs "$rootmnt" || panic "Unionfs (aufs) mount failed"
 463     else
 464         modprobe "${MP_QUIET}" -b unionfs
 465         mount -t unionfs -o dirs=/cow=rw:$rofsstring unionfs "$rootmnt" ||  panic "Unionfs (unionfs) mount failed"
 466     fi
 467
 468     # Adding other custom mounts
 469     if [ -n "${PERSISTENT}" ]; then
 470         # directly mount /home
 471         # FIXME: add a custom mounts configurable system
 472         homecow=$(find_cow_device "${home_persistence}" )
 473         if [ -b "${homecow}" ]; then
 474             mount -t $(get_fstype "${homecow}") -o rw "${homecow}" "${rootmnt}/home"
 475             export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
 476         else
 477             [ "$quiet" != "y" ] && log_warning_msg "Unable to find the persistent home medium"
 478         fi
 479         # Look for other snapshots to copy in
 480         try_snap "${root_snapshot_label}" "${rootmnt}" "ROOT"
 481         try_snap "${home_snapshot_label}" "${rootmnt}/home" "HOME"
 482     fi
 483
 484     if [ -n "${SHOWMOUNTS}" ]; then
 485         for d in ${rofslist}; do
 486             mkdir -p "${rootmnt}/casper/${d##*/}"
 487             case d in
 488                 *.dir) # do nothing # mount -o bind "${d}" "${rootmnt}/casper/${d##*/}"
 489                     ;;
 490                 *) mount -o move "${d}" "${rootmnt}/casper/${d##*/}"
 491                     ;;
 492             esac
 493         done
 494         # shows cow fs on /cow for use by casper-snapshot
 495         mkdir -p "${rootmnt}/cow"
 496         mount -o bind /cow "${rootmnt}/cow"
 497     fi
 498
 499     # move the first mount; no head in busybox-initramfs
 500     for d in $(mount -t squashfs | cut -d\  -f 3); do
 501         mkdir -p "${rootmnt}/rofs"
 502         mount -o move "${d}" "${rootmnt}/rofs"
 503         break
 504     done
 505 }
 506
 507 check_dev ()
 508 {
 509     sysdev="${1}"
 510     devname="${2}"
 511     if [ -z "${devname}" ]; then
 512         devname=$(sys2dev "${sysdev}")
 513     fi
 514
 515     if [ -n "${LIVEMEDIA_OFFSET}" ]; then
 516         loopdevname=$(setup_loop "${devname}" "loop" "/sys/block/loop*" "${LIVEMEDIA_OFFSET}")
 517         devname="${loopdevname}"
 518     fi
 519
 520     fstype=$(get_fstype "${devname}")
 521     if is_supported_fs ${fstype}; then
 522         mount -t ${fstype} -o ro "${devname}" $mountpoint || continue
 523         if is_casper_path $mountpoint; then
 524             echo $mountpoint
 525             return 0
 526         else
 527             umount $mountpoint
 528         fi
 529     fi
 530
 531     if [ -n "${LIVEMEDIA_OFFSET}" ]; then
 532         losetup -d "${loopdevname}"
 533     fi
 534     return 1
 535 }
 536
 537 find_livefs() {
 538     timeout="${1}"
 539     # first look at the one specified in the command line
 540     if [ ! -z "${LIVEMEDIA}" ]; then
 541         if check_dev "null" "${LIVEMEDIA}"; then
 542             return 0
 543         fi
 544     fi
 545     # don't start autodetection before timeout has expired
 546     if [ -n "${LIVEMEDIA_TIMEOUT}" ]; then
 547         if [ "${timeout}" -lt "${LIVEMEDIA_TIMEOUT}" ]; then
 548             return 1
 549         fi
 550     fi
 551     # or do the scan of block devices
 552     for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram); do
 553         devname=$(sys2dev "${sysblock}")
 554         fstype=$(get_fstype "${devname}")
 555         if /lib/udev/cdrom_id ${devname} > /dev/null; then
 556             if check_dev "null" "${devname}" ; then
 557                 return 0
 558             fi
 559         elif is_nice_device "${sysblock}" ; then
 560             for dev in $(subdevices "${sysblock}"); do
 561                 if check_dev "${dev}" ; then
 562                     return 0
 563                 fi
 564             done
 565         elif [ "${fstype}" = "squashfs" -o \
 566                 "${fstype}" = "ext3" -o \
 567                 "${fstype}" = "ext2" ]; then
 568             # This is an ugly hack situation, the block device has
 569             # an image directly on it.  It's hopefully
 570             # casper, so take it and run with it.
 571             ln -s "${devname}" "${devname}.${fstype}"
 572             echo "${devname}.${fstype}"
 573             return 0
 574         fi
 575     done
 576     return 1
 577 }
 578
 579 pulsate() {
 580     if [ -x /sbin/usplash_write ]; then
 581         /sbin/usplash_write "PULSATE"
 582     fi
 583 }
 584
 585 set_usplash_timeout() {
 586     if [ -x /sbin/usplash_write ]; then
 587         /sbin/usplash_write "TIMEOUT 120"
 588     fi
 589 }
 590
 591 mountroot() {
 592     exec 6>&1
 593     exec 7>&2
 594     exec > casper.log
 595     exec 2>&1
 596
 597     # add by penk
 598     parse_cmdline
 599
 600     set_usplash_timeout
 601     [ "$quiet" != "y" ] && log_begin_msg "Running /scripts/casper-premount"
 602     pulsate
 603     run_scripts /scripts/casper-premount
 604     [ "$quiet" != "y" ] && log_end_msg
 605
 606     # Needed here too because some things (*cough* udev *cough*)
 607     # changes the timeout
 608
 609     set_usplash_timeout
 610
 611     if [ ! -z "${NETBOOT}" ]; then
 612         if do_netmount ; then
 613             livefs_root="${mountpoint}"
 614         else
 615             panic "Unable to find a the network rootfs live file system"
 616         fi
 617     else
 618         # Scan local devices for the image
 619         for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13; do
 620             livefs_root=$(find_livefs $i)
 621             if [ "${livefs_root}" ]; then
 622                 break
 623             fi
 624             sleep 1
 625         done
 626     fi
 627
 628     if [ -z "${livefs_root}" ]; then
 629         panic "Unable to find a medium containing a live file system"
 630     fi
 631
 632     if [ "${TORAM}" ]; then
 633         live_dest="ram"
 634     elif [ "${TODISK}" ]; then
 635         live_dest="${TODISK}"
 636     fi
 637     if [ "${live_dest}" ]; then
 638         log_begin_msg "Copying live_media to ${live_dest}"
 639         copy_live_to "${livefs_root}" "${live_dest}"
 640         log_end_msg
 641     fi
 642
 643     mount_images_in_directory "${livefs_root}" "${rootmnt}"
 644
 645     log_end_msg
 646
 647     maybe_break casper-bottom
 648     [ "$quiet" != "y" ] && log_begin_msg "Running /scripts/casper-bottom"
 649
 650     pulsate
 651     run_scripts /scripts/casper-bottom
 652     [ "$quiet" != "y" ] && log_end_msg
 653
 654     exec 1>&6 6>&-
 655     exec 2>&7 7>&-
 656     cp casper.log "${rootmnt}/var/log/"
 657 }