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/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         [ ! -d "${CDROOT_PATH}" ] && mkdir -p "${CDROOT_PATH}"
 354         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 355         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 356
 357         # For SGI LiveCDs ...
 358         if [ "${LOOPTYPE}" = "sgimips" ]
 359         then
 360                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 361                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 362         fi
 363
 364         # Required for splash to work.  Not an issue with the initrd as this
 365         # device isn't created there and is not needed.
 366         if [ -e /dev/tty1 ]
 367         then
 368                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 369         fi
 370
 371         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 372         then
 373                 bootstrapCD
 374         fi
 375
 376         if [ "${REAL_ROOT}" = '' ]
 377         then
 378                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 379
 380                 COUNTER=0
 381                 while [ ${COUNTER} -lt 3 ]; do
 382                         sleep 3
 383                         echo -n '.'
 384                         let COUNTER=${COUNTER}+1
 385                 done
 386
 387                 sleep 1
 388                 echo -e "${NORMAL}"
 389                 bootstrapCD
 390         fi
 391
 392         if [ "${REAL_ROOT}" = '' ]
 393         then
 394                 # Undo stuff
 395                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 396                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 397                 umount /sys 2>/dev/null
 398
 399                 umount  "${NEW_ROOT}"
 400                 rm -rf  "${NEW_ROOT}/*"
 401
 402                 bad_msg 'Could not find CD to boot, something else needed!'
 403                 CDROOT=0
 404         fi
 405 fi
 406
 407 # Determine root device
 408 good_msg 'Determining root device...'
 409 while true
 410 do
 411         while [ "${got_good_root}" != '1' ]
 412         do
 413                 case "${REAL_ROOT}" in
 414                         LABEL=*|UUID=*)
 415
 416                                 ROOT_DEV=""
 417                                 retval=1
 418
 419                                 if [ ${retval} -ne 0 ]; then
 420                                         ROOT_DEV=$(findfs "${REAL_ROOT}" 2>/dev/null)
 421                                         retval=$?
 422                                 fi
 423
 424                                 if [ ${retval} -ne 0 ]; then
 425                                         ROOT_DEV=$(busybox findfs "${REAL_ROOT}" 2>/dev/null)
 426                                         retval=$?
 427                                 fi
 428
 429                                 if [ ${retval} -ne 0 ]; then
 430                                         ROOT_DEV=$(blkid -l -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null)
 431                                         retval=$?
 432                                 fi
 433
 434                                 if [ ${retval} -eq 0 ] && [ -n "${ROOT_DEV}" ]; then
 435                                         good_msg "Detected real_root=${ROOT_DEV}"
 436                                         REAL_ROOT="${ROOT_DEV}"
 437                                 else
 438                                         prompt_user "REAL_ROOT" "root block device"
 439                                         got_good_root=0
 440                                         continue
 441                                 fi
 442                                 ;;
 443                 esac
 444
 445                 if [ "${REAL_ROOT}" = '' ]
 446                 then
 447                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 448                         prompt_user "REAL_ROOT" "root block device"
 449                         got_good_root=0
 450
 451                 # Check for a block device or /dev/nfs
 452                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 453                 then
 454                         got_good_root=1
 455
 456                 else
 457                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 458                         REAL_ROOT=""
 459                         got_good_root=0
 460                 fi
 461         done
 462
 463
 464         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 465         then
 466                 # CD already mounted; no further checks necessary
 467                 break
 468         elif [ "${LOOPTYPE}" = "sgimips" ]
 469         then
 470                 # sgimips mounts the livecd root partition directly
 471                 # there is no isofs filesystem to worry about
 472                 break
 473         else
 474                 good_msg "Mounting root..."
 475
 476                 # Try to mount the device as ${NEW_ROOT}
 477                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 478                         findnfsmount
 479                 else
 480                         # mount ro so fsck doesn't barf later
 481                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 482                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ro"
 483                                 mount -t ${ROOTFSTYPE} -o ro ${REAL_ROOT} ${NEW_ROOT}
 484                         else
 485                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ro,${REAL_ROOTFLAGS}"
 486                                 mount -t ${ROOTFSTYPE} -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 487                         fi
 488                 fi
 489
 490                 # If mount is successful break out of the loop
 491                 # else not a good root and start over.
 492                 if [ "$?" = '0' ]
 493                 then
 494                         if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 495                         then
 496                                 break
 497                         else
 498                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 499                                 got_good_root=0
 500                                 REAL_ROOT=''
 501                         fi
 502                 else
 503                         bad_msg "Could not mount specified ROOT, try again"
 504                         got_good_root=0
 505                         REAL_ROOT=''
 506                 fi
 507         fi
 508 done
 509 # End determine root device
 510
 511 #verbose_kmsg
 512
 513 # If CD root is set determine the looptype to boot
 514 if [ "${CDROOT}" = '1' ]
 515 then
 516         good_msg 'Determining looptype ...'
 517         cd "${NEW_ROOT}"
 518
 519         # Find loop and looptype
 520         [ -z "${LOOP}" ] && find_loop
 521         [ -z "${LOOPTYPE}" ] && find_looptype
 522
 523         cache_cd_contents
 524
 525         # If encrypted, find key and mount, otherwise mount as usual
 526         if [ -n "${CRYPT_ROOT}" ]
 527         then
 528                 CRYPT_ROOT_KEY="$(head -n 1 "${CDROOT_PATH}"/livecd)"
 529                 CRYPT_ROOT='/dev/loop0'
 530                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 531
 532                 losetup /dev/loop0 "${CDROOT_PATH}/${LOOPEXT}${LOOP}"
 533                 test_success 'Preparing loop filesystem'
 534
 535                 startLUKS
 536
 537                 case ${LOOPTYPE} in
 538                         normal)
 539                                 MOUNTTYPE="ext2"
 540                                 ;;
 541                         *)
 542                                 MOUNTTYPE="${LOOPTYPE}"
 543                                 ;;
 544                 esac
 545                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 546                 test_success 'Mount filesystem'
 547                 FS_LOCATION='mnt/livecd'
 548         # Setup the loopback mounts, if unencrypted
 549         else
 550                 if [ "${LOOPTYPE}" = 'normal' ]
 551                 then
 552                         good_msg 'Mounting loop filesystem'
 553                         mount -t ext2 -o loop,ro "${CDROOT_PATH}/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 554                         test_success 'Mount filesystem'
 555                         FS_LOCATION='mnt/livecd'
 556                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 557                 then
 558                         if [ "${USE_AUFS_NORMAL}" != '1' ]; then
 559                                 good_msg 'Mounting squashfs filesystem'
 560                                 mount -t squashfs -o loop,ro "${CDROOT_PATH}/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 561                         else
 562                                 good_msg 'Mounting squashfs & aufs filesystems'
 563                                 setup_squashfs_aufs
 564                                 test_success 'Mount filesystem'
 565                         fi
 566                         FS_LOCATION='mnt/livecd'
 567                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 568                 then
 569                         good_msg 'Mounting gcloop filesystem'
 570                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${CDROOT_PATH}/${LOOPEXT}${LOOP}"
 571                         test_success 'losetup the loop device'
 572
 573                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 574                         test_success 'Mount the losetup loop device'
 575                         FS_LOCATION='mnt/livecd'
 576                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 577                 then
 578                         FS_LOCATION="${CDROOT_PATH/\/}/${LOOPEXT}${LOOP}"
 579                 elif [ "${LOOPTYPE}" = 'noloop' ]
 580                 then
 581                         FS_LOCATION="${CDROOT_PATH/\/}"
 582                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 583                 then
 584                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 585                         # partition on the cdrom and returns this offset for losetup
 586                         #
 587                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 588                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 589                         #
 590                         # We use the value given to losetup to set /dev/loop0 to point
 591                         # to the liveCD root partition, and then mount /dev/loop0 as
 592                         # the LiveCD rootfs
 593                         good_msg 'Locating the SGI LiveCD Root Partition'
 594                         echo ' ' | \
 595                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 596                                         "${NEW_ROOT}${CDROOT_DEV}" \
 597                                         "${NEW_ROOT}${REAL_ROOT}"
 598                         test_success 'losetup /dev/sr0 /dev/loop0'
 599
 600                         good_msg 'Mounting the Root Partition'
 601                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 602                         test_success 'mount /dev/loop0 /'
 603                         FS_LOCATION='mnt/livecd'
 604                 fi
 605         fi
 606
 607
 608
 609         # Unpacking additional packages from NFS mount
 610         # This is useful for adding kernel modules to /lib
 611         # We do this now, so that additional packages can add whereever they want.
 612         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 613         then
 614                 if [ -e "${CDROOT_PATH}/add" ]
 615                 then
 616                                 for targz in $(ls ${CDROOT_PATH}/add/*.tar.gz)
 617                                 do
 618                                         tarname=$(basename ${targz})
 619                                         good_msg "Adding additional package ${tarname}"
 620                                         (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
 621                                 done
 622                 fi
 623         fi
 624
 625
 626         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 627         then
 628                 setup_unionfs ${NEW_ROOT} /${FS_LOCATION}
 629                 CHROOT=/union
 630         elif [ "${USE_AUFS_NORMAL}" != '1' ]; then
 631
 632         good_msg "Copying read-write image contents to tmpfs"
 633         # Copy over stuff that should be writable
 634         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
 635
 636         # Now we do the links.
 637         for x in ${ROOT_LINKS}
 638         do
 639                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 640                 then
 641                         ln -s "$(readlink ${NEW_ROOT}/${FS_LOCATION}/${x})" "${x}" 2>/dev/null
 642                 else
 643                         # List all subdirectories of x
 644                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 645                         do
 646                                 # Strip the prefix of the FS_LOCATION
 647                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 648
 649                                 # Skip this directory if we already linked a parent directory
 650                                 if [ "${current_parent}" != '' ]; then
 651                                         var=$(echo "${directory}" | grep "^${current_parent}")
 652                                         if [ "${var}" != '' ]; then
 653                                                 continue
 654                                         fi
 655                                 fi
 656                                 # Test if the directory exists already
 657                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 658                                 then
 659                                         # It does exist, link all the individual files
 660                                         for file in $(ls /${NEW_ROOT}/${FS_LOCATION}/${directory})
 661                                         do
 662                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 663                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 664                                                 fi
 665                                         done
 666                                 else
 667                                         # It does not exist, make a link to the livecd
 668                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 669                                         current_parent="${directory}"
 670                                 fi
 671                         done
 672                 fi
 673         done
 674
 675         mkdir initramfs proc tmp sys 2>/dev/null
 676         chmod 1777 tmp
 677
 678         fi
 679
 680         #UML=$(cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||')
 681         #if [ "${UML}" = 'UML' ]
 682         #then
 683         #       # UML Fixes
 684         #       good_msg 'Updating for uml system'
 685         #fi
 686
 687         # Let Init scripts know that we booted from CD
 688         export CDBOOT
 689         CDBOOT=1
 690 else
 691         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 692         then
 693                 mkdir /union_changes
 694                 mount -t tmpfs tmpfs /union_changes
 695                 setup_unionfs /union_changes ${NEW_ROOT}
 696                 mkdir -p ${UNION}/tmp/.initrd
 697         fi
 698 fi
 699
 700 # Execute script on the cdrom just before boot to update things if necessary
 701 cdupdate
 702
 703 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 704 then
 705         good_msg "Entering ${SUBDIR} to boot"
 706         CHROOT="${CHROOT}/${SUBDIR}"
 707 fi
 708
 709 verbose_kmsg
 710
 711 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 712
 713 cd "${CHROOT}"
 714 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
 715 echo -ne "${BOLD}.${NORMAL}"
 716
 717 # If devtmpfs is mounted, try move it to the new root
 718 # If that fails, try to unmount all possible mounts of devtmpfs as stuff breaks otherwise
 719 for fs in /dev /sys /proc
 720 do
 721         if grep -qs "$fs" /proc/mounts
 722         then
 723                 if ! mount --move $fs "${CHROOT}"$fs
 724                 then
 725                         umount $fs || echo '*: Failed to move and unmount the ramdisk $fs!'
 726                 fi
 727         fi
 728 done
 729
 730 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 731 then
 732         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
 733 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 734 then
 735         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
 736 fi
 737
 738 echo -e "${BOLD}.${NORMAL}"
 739
 740 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 741
 742 # If we get here, something bad has happened
 743 splash 'verbose'
 744
 745 echo 'A fatal error has probably occured since /sbin/init did not'
 746 echo 'boot correctly. Trying to open a shell...'
 747 echo
 748 exec /bin/bash
 749 exec /bin/sh
 750 exec /bin/ash
 751 exec sh