defaults/linuxrc

   1 #!/bin/sh
   2
   3 . /etc/initrd.defaults
   4 . /etc/initrd.scripts
   5
   6 splash() {
   7         return 0
   8 }
   9
  10 [ -e /etc/initrd.splash ] && . /etc/initrd.splash
  11
  12 # Clean input/output
  13 exec >${CONSOLE} <${CONSOLE} 2>&1
  14
  15 if [ "$$" != '1' ]
  16 then
  17         echo '/linuxrc has to be run as the init process as the one'
  18         echo 'with a PID of 1. Try adding init="/linuxrc" to the'
  19         echo 'kernel command line or running "exec /linuxrc".'
  20         exit 1
  21 fi
  22
  23 mount -t proc -o noexec,nosuid,nodev proc /proc >/dev/null 2>&1
  24 mount -o remount,rw / >/dev/null 2>&1
  25
  26 # Set up symlinks
  27 /bin/busybox --install -s
  28
  29 if [ "$0" = '/init' ]
  30 then
  31         [ -e /linuxrc ] && rm /linuxrc
  32 fi
  33
  34 quiet_kmsg
  35
  36 CMDLINE=$(cat /proc/cmdline)
  37 # Scan CMDLINE for any specified real_root= or cdroot arguments
  38 FAKE_ROOT=''
  39 REAL_ROOTFLAGS=''
  40 ROOTFSTYPE='auto'
  41 CRYPT_SILENT=0
  42 for x in ${CMDLINE}
  43 do
  44         case "${x}" in
  45                 real_root=*)
  46                         REAL_ROOT=${x#*=}
  47                 ;;
  48                 root=*)
  49                         FAKE_ROOT=${x#*=}
  50                 ;;
  51                 subdir=*)
  52                         SUBDIR=${x#*=}
  53                 ;;
  54                 real_init=*)
  55                         REAL_INIT=${x#*=}
  56                 ;;
  57                 init_opts=*)
  58                         INIT_OPTS=${x#*=}
  59                 ;;
  60                 # Livecd options
  61                 cdroot)
  62                         CDROOT=1
  63                 ;;
  64                 cdroot=*)
  65                         CDROOT=1
  66                         CDROOT_DEV=${x#*=}
  67                 ;;
  68                 cdroot_type=*)
  69                         CDROOT_TYPE=${x#*=}
  70                 ;;
  71                 # Start livecd loop, looptype options
  72                 loop=*)
  73                         LOOP=${x#*=}
  74                 ;;
  75                 looptype=*)
  76                         LOOPTYPE=${x#*=}
  77                 ;;
  78                 isoboot=*)
  79                         ISOBOOT=${x#*=}
  80                 ;;
  81                 # Start Volume manager options
  82                 dolvm)
  83                         USE_LVM_NORMAL=1
  84                 ;;
  85                 dolvm2)
  86                         bad_msg 'Using dolvm2 is deprecated, use dolvm, instead.'
  87                         USE_LVM_NORMAL=1
  88                 ;;
  89                 domdadm)
  90                         USE_MDADM=1
  91                 ;;
  92                 dodmraid)
  93                         USE_DMRAID_NORMAL=1
  94                 ;;
  95                 dodmraid=*)
  96                         DMRAID_OPTS=${x#*=}
  97                         USE_DMRAID_NORMAL=1
  98                 ;;
  99                 # Debug Options
 100                 debug)
 101                         DEBUG='yes'
 102                 ;;
 103                 # Scan delay options
 104                 scandelay=*)
 105                         SDELAY=${x#*=}
 106                 ;;
 107                 scandelay)
 108                         SDELAY=3
 109                 ;;
 110                 # Module no-loads
 111                 doload=*)
 112                         MDOLIST=${x#*=}
 113                         MDOLIST=$(echo ${MDOLIST} | sed -e 's/,/ /g'`)
 114                 ;;
 115                 nodetect)
 116                         NODETECT=1
 117                 ;;
 118                 noload=*)
 119                         MLIST=${x#*=}
 120                         MLIST="$(echo ${MLIST} | sed -e 's/,/ /g')"
 121                         export MLIST
 122                 ;;
 123                 # Redirect output to a specific tty
 124                 CONSOLE=*|console=*)
 125                         CONSOLE=${x#*=}
 126                         CONSOLE=$(basename ${CONSOLE})
 127 #                       exec >${CONSOLE} <${CONSOLE} 2>&1
 128                 ;;
 129                 # /dev/md
 130                 lvmraid=*)
 131                         RAID_DEVICES="${x#*=}"
 132                         RAID_DEVICES="$(echo ${RAID_DEVICES} | sed -e 's/,/ /g')"
 133                         USE_LVM_NORMAL=1
 134                 ;;
 135                 part=*)
 136                         MDPART=${x#*=}
 137                 ;;
 138                 # NFS
 139                 ip=*)
 140                         IP=${x#*=}
 141                 ;;
 142                 nfsroot=*)
 143                         NFSROOT=${x#*=}
 144                 ;;
 145                 # iSCSI
 146                 iscsi_initiatorname=*)
 147                         ISCSI_INITIATORNAME=${x#*=}
 148                 ;;
 149                 iscsi_target=*)
 150                         ISCSI_TARGET=${x#*=}
 151                 ;;
 152                 iscsi_tgpt=*)
 153                         ISCSI_TGPT=${x#*=}
 154                 ;;
 155                 iscsi_address=*)
 156                         ISCSI_ADDRESS=${x#*=}
 157                 ;;
 158                 iscsi_port=*)
 159                         ISCSI_PORT=${x#*=}
 160                 ;;
 161                 iscsi_username=*)
 162                         ISCSI_USERNAME=${x#*=}
 163                 ;;
 164                 iscsi_password=*)
 165                         ISCSI_PASSWORD=${x#*=}
 166                 ;;
 167                 iscsi_username_in=*)
 168                         ISCSI_USERNAME_IN=${x#*=}
 169                 ;;
 170                 iscsi_password_in=*)
 171                         ISCSI_PASSWORD_IN=${x#*=}
 172                 ;;
 173                 iscsi_debug=*)
 174                         ISCSI_DEBUG=${x#*=}
 175                 ;;
 176                 iscsi_noibft)
 177                         ISCSI_NOIBFT=1
 178                 ;;
 179                 # Crypto
 180                 crypt_root=*)
 181                         CRYPT_ROOT=${x#*=}
 182                 ;;
 183                 crypt_swap=*)
 184                         CRYPT_SWAP=${x#*=}
 185                 ;;
 186                 root_key=*)
 187                         CRYPT_ROOT_KEY=${x#*=}
 188                 ;;
 189                 root_keydev=*)
 190                         CRYPT_ROOT_KEYDEV=${x#*=}
 191                 ;;
 192                 swap_key=*)
 193                         CRYPT_SWAP_KEY=${x#*=}
 194                 ;;
 195                 swap_keydev=*)
 196                         CRYPT_SWAP_KEYDEV=${x#*=}
 197                 ;;
 198                 real_resume=*|resume=*)
 199                         REAL_RESUME=${x#*=}
 200                 ;;
 201                 noresume)
 202                         NORESUME=1
 203                 ;;
 204                 crypt_silent)
 205                         CRYPT_SILENT=1
 206                 ;;
 207                 real_rootflags=*)
 208                         REAL_ROOTFLAGS=${x#*=}
 209                 ;;
 210                 rootfstype=*)
 211                         ROOTFSTYPE=${x#*=}
 212                 ;;
 213                 keymap=*)
 214                         keymap=${x#*=}
 215                 ;;
 216                 aufs)
 217                         USE_AUFS_NORMAL=1
 218                 ;;
 219                 unionfs)
 220                         if [ ! -x /sbin/unionfs ]
 221                         then
 222                                 USE_UNIONFS_NORMAL=0
 223                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 224                         else
 225                                 USE_UNIONFS_NORMAL=1
 226                         fi
 227                         ;;
 228                 nounionfs)
 229                         USE_UNIONFS_NORMAL=0
 230                         ;;
 231         esac
 232 done
 233
 234 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" = '0' \)  -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
 235 then
 236         REAL_ROOT="${FAKE_ROOT}"
 237 fi
 238
 239 splash 'init'
 240
 241 cmdline_hwopts
 242
 243 # Mount sysfs
 244 mount_sysfs
 245
 246 # Setup hotplugging for firmware loading
 247 setup_hotplug
 248
 249 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
 250 if [ -z "${DO_modules}" ]
 251 then
 252         good_msg 'Skipping module load; disabled via commandline'
 253 elif [ -d "/lib/modules/${KV}" ]
 254 then
 255         good_msg 'Loading modules'
 256         # Load appropriate kernel modules
 257         if [ "${NODETECT}" != '1' ]
 258         then
 259                 for modules in ${MY_HWOPTS}
 260                 do
 261                         modules_scan ${modules}
 262                 done
 263         fi
 264         # Always eval doload=...
 265         modules_load ${MDOLIST}
 266 else
 267         good_msg 'Skipping module load; no modules in the ramdisk!'
 268 fi
 269
 270 # Apply scan delay if specified
 271 sdelay
 272
 273 # Setup slow USB bits
 274 setup_slowusb
 275
 276 # Start device manager
 277 start_dev_mgr
 278
 279 # if doslowusb is passed, pause other 10 seconds here, after mdev load
 280 [ "${DO_slowusb}" ] && sleep 10
 281
 282 # Start iSCSI
 283 if [ -e /bin/iscsistart ]
 284 then
 285         startiscsi
 286 fi
 287
 288 # Setup btrfs, see bug 303529
 289 setup_btrfsctl
 290
 291 # Setup md device nodes if they dont exist
 292 setup_md_device
 293
 294 # Scan volumes
 295 startVolumes
 296
 297 setup_keymap
 298
 299 # Initialize LUKS root device except for livecd's
 300 if [ "${CDROOT}" != 1 ]
 301 then
 302         startLUKS
 303         if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
 304         then
 305                 case "${REAL_RESUME}" in
 306                         LABEL=*|UUID=*)
 307
 308                                 RESUME_DEV=""
 309                                 retval=1
 310
 311                                 if [ ${retval} -ne 0 ]; then
 312                                         RESUME_DEV=$(findfs "${REAL_RESUME}" 2>/dev/null)
 313                                         retval=$?
 314                                 fi
 315
 316                                 if [ ${retval} -ne 0 ]; then
 317                                         RESUME_DEV=$(busybox findfs "${REAL_RESUME}" 2>/dev/null)
 318                                         retval=$?
 319                                 fi
 320
 321                                 if [ ${retval} -ne 0 ]; then
 322                                         RESUME_DEV=$(blkid -l -t "${REAL_RESUME}" | cut -d ":" -f 1 2>/dev/null)
 323                                         retval=$?
 324                                 fi
 325
 326                                 if [ ${retval} -eq 0 ] && [ -n "${RESUME_DEV}" ]; then
 327                                         good_msg "Detected real_resume=${RESUME_DEV}"
 328                                         REAL_RESUME="${RESUME_DEV}"
 329                                 fi
 330                                 ;;
 331                 esac
 332
 333                 do_resume
 334         fi
 335 fi
 336
 337 mkdir -p "${NEW_ROOT}"
 338 CHROOT="${NEW_ROOT}"
 339
 340 # Run debug shell if requested
 341 rundebugshell
 342
 343 if [ "${CDROOT}" = '1' ]
 344 then
 345         good_msg "Making tmpfs for ${NEW_ROOT}"
 346         mount -n -t tmpfs tmpfs "${NEW_ROOT}"
 347
 348         for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
 349         do
 350                 mkdir -p "${NEW_ROOT}/${i}"
 351                 chmod 755 "${NEW_ROOT}/${i}"
 352         done
 353         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 354         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 355
 356         # For SGI LiveCDs ...
 357         if [ "${LOOPTYPE}" = "sgimips" ]
 358         then
 359                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 360                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 361         fi
 362
 363         # Required for splash to work.  Not an issue with the initrd as this
 364         # device isn't created there and is not needed.
 365         if [ -e /dev/tty1 ]
 366         then
 367                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 368         fi
 369
 370         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 371         then
 372                 bootstrapCD
 373         fi
 374
 375         if [ "${REAL_ROOT}" = '' ]
 376         then
 377                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 378
 379                 COUNTER=0
 380                 while [ ${COUNTER} -lt 3 ]; do
 381                         sleep 3
 382                         echo -n '.'
 383                         let COUNTER=${COUNTER}+1
 384                 done
 385
 386                 sleep 1
 387                 echo -e "${NORMAL}"
 388                 bootstrapCD
 389         fi
 390
 391         if [ "${REAL_ROOT}" = '' ]
 392         then
 393                 # Undo stuff
 394                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 395                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 396                 umount /sys 2>/dev/null
 397
 398                 umount  "${NEW_ROOT}"
 399                 rm -rf  "${NEW_ROOT}/*"
 400
 401                 bad_msg 'Could not find CD to boot, something else needed!'
 402                 CDROOT=0
 403         fi
 404 fi
 405
 406 # Determine root device
 407 good_msg 'Determining root device...'
 408 while true
 409 do
 410         while [ "${got_good_root}" != '1' ]
 411         do
 412                 case "${REAL_ROOT}" in
 413                         LABEL=*|UUID=*)
 414
 415                                 ROOT_DEV=""
 416                                 retval=1
 417
 418                                 if [ ${retval} -ne 0 ]; then
 419                                         ROOT_DEV=$(findfs "${REAL_ROOT}" 2>/dev/null)
 420                                         retval=$?
 421                                 fi
 422
 423                                 if [ ${retval} -ne 0 ]; then
 424                                         ROOT_DEV=$(busybox findfs "${REAL_ROOT}" 2>/dev/null)
 425                                         retval=$?
 426                                 fi
 427
 428                                 if [ ${retval} -ne 0 ]; then
 429                                         ROOT_DEV=$(blkid -l -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null)
 430                                         retval=$?
 431                                 fi
 432
 433                                 if [ ${retval} -eq 0 ] && [ -n "${ROOT_DEV}" ]; then
 434                                         good_msg "Detected real_root=${ROOT_DEV}"
 435                                         REAL_ROOT="${ROOT_DEV}"
 436                                 else
 437                                         prompt_user "REAL_ROOT" "root block device"
 438                                         got_good_root=0
 439                                         continue
 440                                 fi
 441                                 ;;
 442                 esac
 443
 444                 if [ "${REAL_ROOT}" = '' ]
 445                 then
 446                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 447                         prompt_user "REAL_ROOT" "root block device"
 448                         got_good_root=0
 449
 450                 # Check for a block device or /dev/nfs
 451                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 452                 then
 453                         got_good_root=1
 454
 455                 else
 456                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 457                         REAL_ROOT=""
 458                         got_good_root=0
 459                 fi
 460         done
 461
 462
 463         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 464         then
 465                 # CD already mounted; no further checks necessary
 466                 break
 467         elif [ "${LOOPTYPE}" = "sgimips" ]
 468         then
 469                 # sgimips mounts the livecd root partition directly
 470                 # there is no isofs filesystem to worry about
 471                 break
 472         else
 473                 good_msg "Mounting root..."
 474
 475                 # Try to mount the device as ${NEW_ROOT}
 476                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 477                         findnfsmount
 478                 else
 479                         # mount ro so fsck doesn't barf later
 480                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 481                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ro"
 482                                 mount -t ${ROOTFSTYPE} -o ro ${REAL_ROOT} ${NEW_ROOT}
 483                         else
 484                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ro,${REAL_ROOTFLAGS}"
 485                                 mount -t ${ROOTFSTYPE} -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 486                         fi
 487                 fi
 488
 489                 # If mount is successful break out of the loop
 490                 # else not a good root and start over.
 491                 if [ "$?" = '0' ]
 492                 then
 493                         if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 494                         then
 495                                 break
 496                         else
 497                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 498                                 got_good_root=0
 499                                 REAL_ROOT=''
 500                         fi
 501                 else
 502                         bad_msg "Could not mount specified ROOT, try again"
 503                         got_good_root=0
 504                         REAL_ROOT=''
 505                 fi
 506         fi
 507 done
 508 # End determine root device
 509
 510 #verbose_kmsg
 511
 512 # If CD root is set determine the looptype to boot
 513 if [ "${CDROOT}" = '1' ]
 514 then
 515         good_msg 'Determining looptype ...'
 516         cd "${NEW_ROOT}"
 517
 518         # Find loop and looptype
 519         [ -z "${LOOP}" ] && find_loop
 520         [ -z "${LOOPTYPE}" ] && find_looptype
 521
 522         cache_cd_contents
 523
 524         # If encrypted, find key and mount, otherwise mount as usual
 525         if [ -n "${CRYPT_ROOT}" ]
 526         then
 527                 CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)"
 528                 CRYPT_ROOT='/dev/loop0'
 529                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 530
 531                 losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 532                 test_success 'Preparing loop filesystem'
 533
 534                 startLUKS
 535
 536                 case ${LOOPTYPE} in
 537                         normal)
 538                                 MOUNTTYPE="ext2"
 539                                 ;;
 540                         *)
 541                                 MOUNTTYPE="${LOOPTYPE}"
 542                                 ;;
 543                 esac
 544                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 545                 test_success 'Mount filesystem'
 546                 FS_LOCATION='mnt/livecd'
 547         # Setup the loopback mounts, if unencrypted
 548         else
 549                 if [ "${LOOPTYPE}" = 'normal' ]
 550                 then
 551                         good_msg 'Mounting loop filesystem'
 552                         mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 553                         test_success 'Mount filesystem'
 554                         FS_LOCATION='mnt/livecd'
 555                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 556                 then
 557                         if [ "${USE_AUFS_NORMAL}" != '1' ]; then
 558                                 good_msg 'Mounting squashfs filesystem'
 559                                 mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 560                         else
 561                                 good_msg 'Mounting squashfs & aufs filesystems'
 562                                 setup_squashfs_aufs
 563                                 test_success 'Mount filesystem'
 564                         fi
 565                         FS_LOCATION='mnt/livecd'
 566                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 567                 then
 568                         good_msg 'Mounting gcloop filesystem'
 569                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 570                         test_success 'losetup the loop device'
 571
 572                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 573                         test_success 'Mount the losetup loop device'
 574                         FS_LOCATION='mnt/livecd'
 575                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 576                 then
 577                         FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}"
 578                 elif [ "${LOOPTYPE}" = 'noloop' ]
 579                 then
 580                         FS_LOCATION='mnt/cdrom'
 581                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 582                 then
 583                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 584                         # partition on the cdrom and returns this offset for losetup
 585                         #
 586                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 587                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 588                         #
 589                         # We use the value given to losetup to set /dev/loop0 to point
 590                         # to the liveCD root partition, and then mount /dev/loop0 as
 591                         # the LiveCD rootfs
 592                         good_msg 'Locating the SGI LiveCD Root Partition'
 593                         echo ' ' | \
 594                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 595                                         "${NEW_ROOT}${CDROOT_DEV}" \
 596                                         "${NEW_ROOT}${REAL_ROOT}"
 597                         test_success 'losetup /dev/sr0 /dev/loop0'
 598
 599                         good_msg 'Mounting the Root Partition'
 600                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 601                         test_success 'mount /dev/loop0 /'
 602                         FS_LOCATION='mnt/livecd'
 603                 fi
 604         fi
 605
 606
 607
 608         # Unpacking additional packages from NFS mount
 609         # This is useful for adding kernel modules to /lib
 610         # We do this now, so that additional packages can add whereever they want.
 611         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 612         then
 613                 if [ -e "${NEW_ROOT}/mnt/cdrom/add" ]
 614                 then
 615                                 for targz in $(ls ${NEW_ROOT}/mnt/cdrom/add/*.tar.gz)
 616                                 do
 617                                         tarname=$(basename ${targz})
 618                                         good_msg "Adding additional package ${tarname}"
 619                                         (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
 620                                 done
 621                 fi
 622         fi
 623
 624
 625         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 626         then
 627                 setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION}
 628                 CHROOT=/union
 629         elif [ "${USE_AUFS_NORMAL}" != '1' ]; then
 630
 631         good_msg "Copying read-write image contents to tmpfs"
 632         # Copy over stuff that should be writable
 633         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
 634
 635         # Now we do the links.
 636         for x in ${ROOT_LINKS}
 637         do
 638                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 639                 then
 640                         ln -s "$(readlink ${NEW_ROOT}/${FS_LOCATION}/${x})" "${x}" 2>/dev/null
 641                 else
 642                         # List all subdirectories of x
 643                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 644                         do
 645                                 # Strip the prefix of the FS_LOCATION
 646                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 647
 648                                 # Skip this directory if we already linked a parent directory
 649                                 if [ "${current_parent}" != '' ]; then
 650                                         var=$(echo "${directory}" | grep "^${current_parent}")
 651                                         if [ "${var}" != '' ]; then
 652                                                 continue
 653                                         fi
 654                                 fi
 655                                 # Test if the directory exists already
 656                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 657                                 then
 658                                         # It does exist, link all the individual files
 659                                         for file in $(ls /${NEW_ROOT}/${FS_LOCATION}/${directory})
 660                                         do
 661                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 662                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 663                                                 fi
 664                                         done
 665                                 else
 666                                         # It does not exist, make a link to the livecd
 667                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 668                                         current_parent="${directory}"
 669                                 fi
 670                         done
 671                 fi
 672         done
 673
 674         mkdir initramfs proc tmp sys 2>/dev/null
 675         chmod 1777 tmp
 676
 677         fi
 678
 679         #UML=$(cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||')
 680         #if [ "${UML}" = 'UML' ]
 681         #then
 682         #       # UML Fixes
 683         #       good_msg 'Updating for uml system'
 684         #fi
 685
 686         # Let Init scripts know that we booted from CD
 687         export CDBOOT
 688         CDBOOT=1
 689 else
 690         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 691         then
 692                 mkdir /union_changes
 693                 mount -t tmpfs tmpfs /union_changes
 694                 setup_unionfs /union_changes ${NEW_ROOT}
 695                 mkdir -p ${UNION}/tmp/.initrd
 696         fi
 697 fi
 698
 699 # Execute script on the cdrom just before boot to update things if necessary
 700 cdupdate
 701
 702 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 703 then
 704         good_msg "Entering ${SUBDIR} to boot"
 705         CHROOT="${CHROOT}/${SUBDIR}"
 706 fi
 707
 708 verbose_kmsg
 709
 710 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 711
 712 cd "${CHROOT}"
 713 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
 714 echo -ne "${BOLD}.${NORMAL}"
 715
 716 # If devtmpfs is mounted, try move it to the new root
 717 # If that fails, try to unmount all possible mounts of devtmpfs as stuff breaks otherwise
 718 for fs in /dev /sys /proc
 719 do
 720         if grep -qs "$fs" /proc/mounts
 721         then
 722                 if ! mount --move $fs "${CHROOT}"$fs
 723                 then
 724                         umount $fs || echo '*: Failed to move and unmount the ramdisk $fs!'
 725                 fi
 726         fi
 727 done
 728
 729 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 730 then
 731         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
 732 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 733 then
 734         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
 735 fi
 736
 737 echo -e "${BOLD}.${NORMAL}"
 738
 739 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 740
 741 # If we get here, something bad has happened
 742 splash 'verbose'
 743
 744 echo 'A fatal error has probably occured since /sbin/init did not'
 745 echo 'boot correctly. Trying to open a shell...'
 746 echo
 747 exec /bin/bash
 748 exec /bin/sh
 749 exec /bin/ash
 750 exec sh