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=`parse_opt "${x}"`
  47                 ;;
  48                 root\=*)
  49                         FAKE_ROOT=`parse_opt "${x}"`
  50                 ;;
  51                 subdir\=*)
  52                         SUBDIR=`parse_opt "${x}"`
  53                 ;;
  54                 real_init\=*)
  55                         REAL_INIT=`parse_opt "${x}"`
  56                 ;;
  57                 init_opts\=*)
  58                         INIT_OPTS=`parse_opt "${x}"`
  59                 ;;
  60                 # Livecd options
  61                 cdroot)
  62                         CDROOT=1
  63                 ;;
  64                 cdroot\=*)
  65                         CDROOT=1
  66                         CDROOT_DEV=`parse_opt "${x}"`
  67                 ;;
  68                 cdroot_type\=*)
  69                         CDROOT_TYPE=`parse_opt "${x}"`
  70                 ;;
  71                 # Start livecd loop, looptype options
  72                 loop\=*)
  73                         LOOP=`parse_opt "${x}"`
  74                 ;;
  75                 looptype\=*)
  76                         LOOPTYPE=`parse_opt "${x}"`
  77                 ;;
  78                 isoboot\=*)
  79                         ISOBOOT=`parse_opt "${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=`parse_opt "${x}"`
  97                         USE_DMRAID_NORMAL=1
  98                 ;;
  99                 doevms)
 100                         USE_EVMS_NORMAL=1
 101                 ;;
 102                 doevms2)
 103                         bad_msg 'Using doevms2 is deprecated, use doevms, instead.'
 104                         USE_EVMS_NORMAL=1
 105                 ;;
 106                 # Debug Options
 107                 debug)
 108                         DEBUG='yes'
 109                 ;;
 110                 # Scan delay options
 111                 scandelay\=*)
 112                         SDELAY=`parse_opt "${x}"`
 113                 ;;
 114                 scandelay)
 115                         SDELAY=3
 116                 ;;
 117                 # Module no-loads
 118                 doload\=*)
 119                         MDOLIST=`parse_opt "${x}"`
 120                         MDOLIST="`echo ${MDOLIST} | sed -e 's/,/ /g'`"
 121                 ;;
 122                 nodetect)
 123                         NODETECT=1
 124                 ;;
 125                 noload\=*)
 126                         MLIST=`parse_opt "${x}"`
 127                         MLIST="`echo ${MLIST} | sed -e 's/,/ /g'`"
 128                         export MLIST
 129                 ;;
 130                 # Redirect output to a specific tty
 131                 CONSOLE\=*|console\=*)
 132                         CONSOLE=`parse_opt "${x}"`
 133                         CONSOLE=`basename ${CONSOLE}`
 134 #                       exec >${CONSOLE} <${CONSOLE} 2>&1
 135                 ;;
 136                 # /dev/md
 137                 lvmraid\=*)
 138                         RAID_DEVICES="`parse_opt ${x}`"
 139                         RAID_DEVICES="`echo ${RAID_DEVICES} | sed -e 's/,/ /g'`"
 140                 ;;
 141                 part\=*)
 142                         MDPART=`parse_opt "${x}"`
 143                 ;;
 144                 # NFS
 145                 ip\=*)
 146                         IP=`parse_opt "${x}"`
 147                 ;;
 148                 nfsroot\=*)
 149                         NFSROOT=`parse_opt "${x}"`
 150                 ;;
 151                 # iSCSI
 152                 iscsi_initiatorname\=*)
 153                         ISCSI_INITIATORNAME=`parse_opt "${x}"`
 154                 ;;
 155                 iscsi_target\=*)
 156                         ISCSI_TARGET=`parse_opt "${x}"`
 157                 ;;
 158                 iscsi_tgpt\=*)
 159                         ISCSI_TGPT=`parse_opt "${x}"`
 160                 ;;
 161                 iscsi_address\=*)
 162                         ISCSI_ADDRESS=`parse_opt "${x}"`
 163                 ;;
 164                 iscsi_port\=*)
 165                         ISCSI_PORT=`parse_opt "${x}"`
 166                 ;;
 167                 iscsi_username\=*)
 168                         ISCSI_USERNAME=`parse_opt "${x}"`
 169                 ;;
 170                 iscsi_password\=*)
 171                         ISCSI_PASSWORD=`parse_opt "${x}"`
 172                 ;;
 173                 iscsi_username_in\=*)
 174                         ISCSI_USERNAME_IN=`parse_opt "${x}"`
 175                 ;;
 176                 iscsi_password_in\=*)
 177                         ISCSI_PASSWORD_IN=`parse_opt "${x}"`
 178                 ;;
 179                 iscsi_debug\=*)
 180                         ISCSI_DEBUG=`parse_opt "${x}"`
 181                 ;;
 182                 iscsi_noibft)
 183                         ISCSI_NOIBFT=1
 184                 ;;
 185                 # Crypto
 186                 crypt_root\=*)
 187                         CRYPT_ROOT=`parse_opt "${x}"`
 188                 ;;
 189                 crypt_swap\=*)
 190                         CRYPT_SWAP=`parse_opt "${x}"`
 191                 ;;
 192                 root_key\=*)
 193                         CRYPT_ROOT_KEY=`parse_opt "${x}"`
 194                 ;;
 195                 root_keydev\=*)
 196                         CRYPT_ROOT_KEYDEV=`parse_opt "${x}"`
 197                 ;;
 198                 swap_key\=*)
 199                         CRYPT_SWAP_KEY=`parse_opt "${x}"`
 200                 ;;
 201                 swap_keydev\=*)
 202                         CRYPT_SWAP_KEYDEV=`parse_opt "${x}"`
 203                 ;;
 204                 real_resume\=*|resume\=*)
 205                         REAL_RESUME=`parse_opt "${x}"`
 206                 ;;
 207                 noresume)
 208                         NORESUME=1
 209                 ;;
 210                 crypt_silent)
 211                         CRYPT_SILENT=1
 212                 ;;
 213                 real_rootflags\=*)
 214                         REAL_ROOTFLAGS=`parse_opt "${x}"`
 215                 ;;
 216                 rootfstype\=*)
 217                         ROOTFSTYPE=`parse_opt "${x}"`
 218                 ;;
 219                 keymap\=*)
 220                         keymap=`parse_opt "${x}"`
 221                 ;;
 222                 unionfs)
 223                         if [ ! -x /sbin/unionfs ]
 224                         then
 225                                 USE_UNIONFS_NORMAL=0
 226                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 227                         else
 228                                 USE_UNIONFS_NORMAL=1
 229                         fi
 230                         ;;
 231                 nounionfs)
 232                         USE_UNIONFS_NORMAL=0
 233                         ;;
 234 #                 unionfs\=*)
 235 #                         if [ ! -x /sbin/unionfs ]
 236 #                         then
 237 #                                 USE_UNIONFS_NORMAL=0
 238 #                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 239 #                         else
 240 #                                 USE_UNIONFS_NORMAL=1
 241 #                                 CMD_UNIONFS=`parse_opt "${x}"`
 242 #                                 echo ${CMD_UNIONFS}|grep , >/dev/null 2>&1
 243 #                                 if [ $? -eq 0 ]
 244 #                                 then
 245 #                                         UID=`echo ${CMD_UNIONFS#*,}`
 246 #                                         UNIONFS=`echo ${CMD_UNIONFS%,*}`
 247 #                                 else
 248 #                                         UNIONFS=${CMD_UNIONFS}
 249 #                                 fi
 250 #                         fi
 251 #                 ;;
 252         esac
 253 done
 254
 255 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" = '0' \)  -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
 256 then
 257         REAL_ROOT="${FAKE_ROOT}"
 258 fi
 259
 260 splash 'init'
 261
 262 cmdline_hwopts
 263
 264 # Mount sysfs
 265 mount_sysfs
 266
 267 # Setup hotplugging for firmware loading
 268 setup_hotplug
 269
 270 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
 271 if [ -z "${DO_modules}" ]
 272 then
 273         good_msg 'Skipping module load; disabled via commandline'
 274 elif [ -d "/lib/modules/${KV}" ]
 275 then
 276         good_msg 'Loading modules'
 277         # Load appropriate kernel modules
 278         if [ "${NODETECT}" != '1' ]
 279         then
 280                 for modules in ${MY_HWOPTS}
 281                 do
 282                         modules_scan ${modules}
 283                 done
 284         fi
 285         # Always eval doload=...
 286         modules_load ${MDOLIST}
 287 else
 288         good_msg 'Skipping module load; no modules in the ramdisk!'
 289 fi
 290
 291 # Apply scan delay if specified
 292 sdelay
 293
 294 # Setup slow USB bits
 295 setup_slowusb
 296
 297 # Start device manager
 298 start_dev_mgr
 299
 300 # if doslowusb is passed, pause other 10 seconds here, after mdev load
 301 [ "${DO_slowusb}" ] && sleep 10
 302
 303 # Start iSCSI
 304 if [ -e /bin/iscsistart ]
 305 then
 306         startiscsi
 307 fi
 308
 309 # Setup btrfs, see bug 303529
 310 setup_btrfsctl
 311
 312 # Setup md device nodes if they dont exist
 313 setup_md_device
 314
 315 # Scan volumes
 316 startVolumes
 317
 318 setup_keymap
 319
 320 # Initialize LUKS root device except for livecd's
 321 if [ "${CDROOT}" != 1 ]
 322 then
 323         startLUKS
 324         if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
 325         then
 326                 case "${REAL_RESUME}" in
 327                         LABEL\=*|UUID\=*)
 328
 329                                 RESUME_DEV=""
 330                                 retval=1
 331
 332                                 if [ ${retval} -ne 0 ]; then
 333                                         RESUME_DEV=`findfs "${REAL_RESUME}" 2>/dev/null`
 334                                         retval=$?
 335                                 fi
 336
 337                                 if [ ${retval} -ne 0 ]; then
 338                                         RESUME_DEV=`busybox findfs "${REAL_RESUME}" 2>/dev/null`
 339                                         retval=$?
 340                                 fi
 341
 342                                 if [ ${retval} -ne 0 ]; then
 343                                         RESUME_DEV=`blkid -l -t "${REAL_RESUME}" | cut -d ":" -f 1 2>/dev/null`
 344                                         retval=$?
 345                                 fi
 346
 347                                 if [ ${retval} -eq 0 ] && [ -n "${RESUME_DEV}" ]; then
 348                                         good_msg "Detected real_resume=${RESUME_DEV}"
 349                                         REAL_RESUME="${RESUME_DEV}"
 350                                 fi
 351                                 ;;
 352                 esac
 353
 354                 do_resume
 355         fi
 356 fi
 357
 358 mkdir -p "${NEW_ROOT}"
 359 CHROOT="${NEW_ROOT}"
 360
 361 # Run debug shell if requested
 362 rundebugshell
 363
 364 if [ "${CDROOT}" = '1' ]
 365 then
 366         good_msg "Making tmpfs for ${NEW_ROOT}"
 367         mount -n -t tmpfs tmpfs "${NEW_ROOT}"
 368
 369         for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
 370         do
 371                 mkdir -p "${NEW_ROOT}/${i}"
 372                 chmod 755 "${NEW_ROOT}/${i}"
 373         done
 374         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 375         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 376
 377         # For SGI LiveCDs ...
 378         if [ "${LOOPTYPE}" = "sgimips" ]
 379         then
 380                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 381                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 382         fi
 383
 384         # Required for splash to work.  Not an issue with the initrd as this
 385         # device isn't created there and is not needed.
 386         if [ -e /dev/tty1 ]
 387         then
 388                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 389         fi
 390
 391         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 392         then
 393                 bootstrapCD
 394         fi
 395
 396         if [ "${REAL_ROOT}" = '' ]
 397         then
 398                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 399
 400                 COUNTER=0
 401                 while [ ${COUNTER} -lt 3 ]; do
 402                         sleep 3
 403                         echo -n '.'
 404                         let COUNTER=${COUNTER}+1
 405                 done
 406
 407                 sleep 1
 408                 echo -e "${NORMAL}"
 409                 bootstrapCD
 410         fi
 411
 412         if [ "${REAL_ROOT}" = '' ]
 413         then
 414                 # Undo stuff
 415                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 416                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 417                 umount /sys 2>/dev/null
 418
 419                 umount  "${NEW_ROOT}"
 420                 rm -rf  "${NEW_ROOT}/*"
 421
 422                 bad_msg 'Could not find CD to boot, something else needed!'
 423                 CDROOT=0
 424         fi
 425 fi
 426
 427 # Determine root device
 428 good_msg 'Determining root device...'
 429 while true
 430 do
 431         while [ "${got_good_root}" != '1' ]
 432         do
 433                 case "${REAL_ROOT}" in
 434                         LABEL\=*|UUID\=*)
 435
 436                                 ROOT_DEV=""
 437                                 retval=1
 438
 439                                 if [ ${retval} -ne 0 ]; then
 440                                         ROOT_DEV=`findfs "${REAL_ROOT}" 2>/dev/null`
 441                                         retval=$?
 442                                 fi
 443
 444                                 if [ ${retval} -ne 0 ]; then
 445                                         ROOT_DEV=`busybox findfs "${REAL_ROOT}" 2>/dev/null`
 446                                         retval=$?
 447                                 fi
 448
 449                                 if [ ${retval} -ne 0 ]; then
 450                                         ROOT_DEV=`blkid -l -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null`
 451                                         retval=$?
 452                                 fi
 453
 454                                 if [ ${retval} -eq 0 ] && [ -n "${ROOT_DEV}" ]; then
 455                                         good_msg "Detected real_root=${ROOT_DEV}"
 456                                         REAL_ROOT="${ROOT_DEV}"
 457                                 else
 458                                         prompt_user "REAL_ROOT" "root block device"
 459                                         got_good_root=0
 460                                         continue
 461                                 fi
 462                                 ;;
 463                 esac
 464
 465                 if [ "${REAL_ROOT}" = '' ]
 466                 then
 467                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 468                         prompt_user "REAL_ROOT" "root block device"
 469                         got_good_root=0
 470
 471                 # Check for a block device or /dev/nfs
 472                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 473                 then
 474                         got_good_root=1
 475
 476                 else
 477                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 478                         REAL_ROOT=""
 479                         got_good_root=0
 480                 fi
 481         done
 482
 483
 484         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 485         then
 486                 # CD already mounted; no further checks necessary
 487                 break
 488         elif [ "${LOOPTYPE}" = "sgimips" ]
 489         then
 490                 # sgimips mounts the livecd root partition directly
 491                 # there is no isofs filesystem to worry about
 492                 break
 493         else
 494                 good_msg "Mounting root..."
 495
 496                 # Try to mount the device as ${NEW_ROOT}
 497                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 498                         findnfsmount
 499                 else
 500                         # mount ro so fsck doesn't barf later
 501                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 502                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ro"
 503                                 mount -t ${ROOTFSTYPE} -o ro ${REAL_ROOT} ${NEW_ROOT}
 504                         else
 505                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ro,${REAL_ROOTFLAGS}"
 506                                 mount -t ${ROOTFSTYPE} -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 507                         fi
 508                 fi
 509
 510                 # If mount is successful break out of the loop
 511                 # else not a good root and start over.
 512                 if [ "$?" = '0' ]
 513                 then
 514                         if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 515                         then
 516                                 break
 517                         else
 518                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 519                                 got_good_root=0
 520                                 REAL_ROOT=''
 521                         fi
 522                 else
 523                         bad_msg "Could not mount specified ROOT, try again"
 524                         got_good_root=0
 525                         REAL_ROOT=''
 526                 fi
 527         fi
 528 done
 529 # End determine root device
 530
 531 #verbose_kmsg
 532
 533 # If CD root is set determine the looptype to boot
 534 if [ "${CDROOT}" = '1' ]
 535 then
 536         good_msg 'Determining looptype ...'
 537         cd "${NEW_ROOT}"
 538
 539         # Find loop and looptype
 540         [ -z "${LOOP}" ] && find_loop
 541         [ -z "${LOOPTYPE}" ] && find_looptype
 542
 543         cache_cd_contents
 544
 545         # If encrypted, find key and mount, otherwise mount as usual
 546         if [ -n "${CRYPT_ROOT}" ]
 547         then
 548                 CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)"
 549                 CRYPT_ROOT='/dev/loop0'
 550                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 551
 552                 losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 553                 test_success 'Preparing loop filesystem'
 554
 555                 startLUKS
 556
 557                 case ${LOOPTYPE} in
 558                         normal)
 559                                 MOUNTTYPE="ext2"
 560                                 ;;
 561                         *)
 562                                 MOUNTTYPE="${LOOPTYPE}"
 563                                 ;;
 564                 esac
 565                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 566                 test_success 'Mount filesystem'
 567                 FS_LOCATION='mnt/livecd'
 568         # Setup the loopback mounts, if unencrypted
 569         else
 570                 if [ "${LOOPTYPE}" = 'normal' ]
 571                 then
 572                         good_msg 'Mounting loop filesystem'
 573                         mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 574                         test_success 'Mount filesystem'
 575                         FS_LOCATION='mnt/livecd'
 576                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 577                 then
 578                         good_msg 'Mounting squashfs filesystem'
 579                         mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 580                         test_success 'Mount filesystem'
 581                         FS_LOCATION='mnt/livecd'
 582                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 583                 then
 584                         good_msg 'Mounting gcloop filesystem'
 585                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 586                         test_success 'losetup the loop device'
 587
 588                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 589                         test_success 'Mount the losetup loop device'
 590                         FS_LOCATION='mnt/livecd'
 591                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 592                 then
 593                         FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}"
 594                 elif [ "${LOOPTYPE}" = 'noloop' ]
 595                 then
 596                         FS_LOCATION='mnt/cdrom'
 597                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 598                 then
 599                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 600                         # partition on the cdrom and returns this offset for losetup
 601                         #
 602                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 603                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 604                         #
 605                         # We use the value given to losetup to set /dev/loop0 to point
 606                         # to the liveCD root partition, and then mount /dev/loop0 as
 607                         # the LiveCD rootfs
 608                         good_msg 'Locating the SGI LiveCD Root Partition'
 609                         echo ' ' | \
 610                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 611                                         "${NEW_ROOT}${CDROOT_DEV}" \
 612                                         "${NEW_ROOT}${REAL_ROOT}"
 613                         test_success 'losetup /dev/sr0 /dev/loop0'
 614
 615                         good_msg 'Mounting the Root Partition'
 616                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 617                         test_success 'mount /dev/loop0 /'
 618                         FS_LOCATION='mnt/livecd'
 619                 fi
 620         fi
 621
 622
 623
 624         # Unpacking additional packages from NFS mount
 625         # This is useful for adding kernel modules to /lib
 626         # We do this now, so that additional packages can add whereever they want.
 627         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 628         then
 629                 if [ -e "${NEW_ROOT}/mnt/cdrom/add" ]
 630                 then
 631                                 for targz in `ls ${NEW_ROOT}/mnt/cdrom/add/*.tar.gz`
 632                                 do
 633                                         tarname=`basename ${targz}`
 634                                         good_msg "Adding additional package ${tarname}"
 635                                         (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
 636                                 done
 637                 fi
 638         fi
 639
 640
 641         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 642         then
 643                 setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION}
 644                 CHROOT=/union
 645         else
 646
 647         good_msg "Copying read-write image contents to tmpfs"
 648         # Copy over stuff that should be writable
 649         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
 650
 651         # Now we do the links.
 652         for x in ${ROOT_LINKS}
 653         do
 654                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 655                 then
 656                         ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
 657                 else
 658                         # List all subdirectories of x
 659                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 660                         do
 661                                 # Strip the prefix of the FS_LOCATION
 662                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 663
 664                                 # Skip this directory if we already linked a parent directory
 665                                 if [ "${current_parent}" != '' ]; then
 666                                         var=`echo "${directory}" | grep "^${current_parent}"`
 667                                         if [ "${var}" != '' ]; then
 668                                                 continue
 669                                         fi
 670                                 fi
 671                                 # Test if the directory exists already
 672                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 673                                 then
 674                                         # It does exist, link all the individual files
 675                                         for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
 676                                         do
 677                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 678                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 679                                                 fi
 680                                         done
 681                                 else
 682                                         # It does not exist, make a link to the livecd
 683                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 684                                         current_parent="${directory}"
 685                                 fi
 686                         done
 687                 fi
 688         done
 689
 690         mkdir initramfs proc tmp sys 2>/dev/null
 691         chmod 1777 tmp
 692
 693         fi
 694
 695         #UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'`
 696         #if [ "${UML}" = 'UML' ]
 697         #then
 698         #       # UML Fixes
 699         #       good_msg 'Updating for uml system'
 700         #fi
 701
 702         # Let Init scripts know that we booted from CD
 703         export CDBOOT
 704         CDBOOT=1
 705 else
 706         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 707         then
 708                 mkdir /union_changes
 709                 mount -t tmpfs tmpfs /union_changes
 710                 setup_unionfs /union_changes ${NEW_ROOT}
 711                 mkdir -p ${UNION}/tmp/.initrd
 712         fi
 713 fi
 714
 715 # Execute script on the cdrom just before boot to update things if necessary
 716 cdupdate
 717
 718 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 719 then
 720         good_msg "Entering ${SUBDIR} to boot"
 721         CHROOT="${CHROOT}/${SUBDIR}"
 722 fi
 723
 724 verbose_kmsg
 725
 726 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 727 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 728 then
 729         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
 730 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 731 then
 732         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
 733 fi
 734
 735 cd "${CHROOT}"
 736 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
 737 echo -ne "${BOLD}.${NORMAL}"
 738
 739 # If devtmpfs is mounted, try move it to the new root
 740 # If that fails, try to unmount all possible mounts of devtmpfs as stuff breaks otherwise
 741 for fs in /dev /sys /proc
 742 do
 743         if grep -qs "$fs" /proc/mounts
 744         then
 745                 if ! mount --move $fs "${CHROOT}"$fs
 746                 then
 747                         umount $fs || echo '*: Failed to move and unmount the ramdisk $fs!'
 748                 fi
 749         fi
 750 done
 751
 752 echo -e "${BOLD}.${NORMAL}"
 753
 754 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 755
 756 # If we get here, something bad has happened
 757 splash 'verbose'
 758
 759 echo 'A fatal error has probably occured since /sbin/init did not'
 760 echo 'boot correctly. Trying to open a shell...'
 761 echo
 762 exec /bin/bash
 763 exec /bin/sh
 764 exec /bin/ash
 765 exec sh