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 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 if [ -e /bin/lvm ]
  35 then
  36         [ -e /bin/vgscan   ] || ln -s /bin/lvm /bin/vgscan
  37         [ -e /bin/vgchange ] || ln -s /bin/lvm /bin/vgchange
  38 fi
  39
  40 quiet_kmsg
  41
  42 CMDLINE=`cat /proc/cmdline`
  43 # Scan CMDLINE for any specified real_root= or cdroot arguments
  44 FAKE_ROOT=''
  45 REAL_ROOTFLAGS=''
  46 CRYPT_SILENT=0
  47 for x in ${CMDLINE}
  48 do
  49         case "${x}" in
  50                 real_root\=*)
  51                         REAL_ROOT=`parse_opt "${x}"`
  52                 ;;
  53                 root\=*)
  54                         FAKE_ROOT=`parse_opt "${x}"`
  55                 ;;
  56                 subdir\=*)
  57                         SUBDIR=`parse_opt "${x}"`
  58                 ;;
  59                 real_init\=*)
  60                         REAL_INIT=`parse_opt "${x}"`
  61                 ;;
  62                 init_opts\=*)
  63                         INIT_OPTS=`parse_opt "${x}"`
  64                 ;;
  65                 # Livecd options
  66                 cdroot)
  67                         CDROOT=1
  68                 ;;
  69                 cdroot\=*)
  70                         CDROOT=1
  71                         CDROOT_DEV=`parse_opt "${x}"`
  72                 ;;
  73                 cdroot_type\=*)
  74                         CDROOT_TYPE=`parse_opt "${x}"`
  75                 ;;
  76                 # Start livecd loop, looptype options
  77                 loop\=*)
  78                         LOOP=`parse_opt "${x}"`
  79                 ;;
  80                 looptype\=*)
  81                         LOOPTYPE=`parse_opt "${x}"`
  82                 ;;
  83                 isoboot\=*)
  84                         ISOBOOT=`parse_opt "${x}"`
  85                 ;;
  86                 # Start Volume manager options
  87                 dolvm)
  88                         USE_LVM_NORMAL=1
  89                 ;;
  90                 dolvm2)
  91                         bad_msg 'Using dolvm2 is deprecated, use dolvm, instead.'
  92                         USE_LVM_NORMAL=1
  93                 ;;
  94                 domdadm)
  95                         USE_MDADM=1
  96                 ;;
  97                 dodmraid)
  98                         USE_DMRAID_NORMAL=1
  99                 ;;
 100                 dodmraid\=*)
 101                         DMRAID_OPTS=`parse_opt "${x}"`
 102                         USE_DMRAID_NORMAL=1
 103                 ;;
 104                 doevms)
 105                         USE_EVMS_NORMAL=1
 106                 ;;
 107                 doevms2)
 108                         bad_msg 'Using doevms2 is deprecated, use doevms, instead.'
 109                         USE_EVMS_NORMAL=1
 110                 ;;
 111                 # Debug Options
 112                 debug)
 113                         DEBUG='yes'
 114                 ;;
 115                 # Scan delay options
 116                 scandelay\=*)
 117                         SDELAY=`parse_opt "${x}"`
 118                 ;;
 119                 scandelay)
 120                         SDELAY=10
 121                 ;;
 122                 # Module no-loads
 123                 doload\=*)
 124                         MDOLIST=`parse_opt "${x}"`
 125                         MDOLIST="`echo ${MDOLIST} | sed -e 's/,/ /g'`"
 126                 ;;
 127                 nodetect)
 128                         NODETECT=1
 129                 ;;
 130                 noload\=*)
 131                         MLIST=`parse_opt "${x}"`
 132                         MLIST="`echo ${MLIST} | sed -e 's/,/ /g'`"
 133                         export MLIST
 134                 ;;
 135                 # Redirect output to a specific tty
 136                 CONSOLE\=*|console\=*)
 137                         CONSOLE=`parse_opt "${x}"`
 138 #                       exec >${CONSOLE} <${CONSOLE} 2>&1
 139                 ;;
 140                 # /dev/md
 141                 lvmraid\=*)
 142                         RAID_DEVICES="`parse_opt ${x}`"
 143                         RAID_DEVICES="`echo ${RAID_DEVICES} | sed -e 's/,/ /g'`"
 144                 ;;
 145                 part\=*)
 146                         MDPART=`parse_opt "${x}"`
 147                 ;;
 148                 # NFS
 149                 ip\=*)
 150                         IP=`parse_opt "${x}"`
 151                 ;;
 152                 nfsroot\=*)
 153                         NFSROOT=`parse_opt "${x}"`
 154                 ;;
 155                 # iSCSI
 156                 iscsi_initiatorname\=*)
 157                         ISCSI_INITIATORNAME=`parse_opt "${x}"`
 158                 ;;
 159                 iscsi_target\=*)
 160                         ISCSI_TARGET=`parse_opt "${x}"`
 161                 ;;
 162                 iscsi_tgpt\=*)
 163                         ISCSI_TGPT=`parse_opt "${x}"`
 164                 ;;
 165                 iscsi_address\=*)
 166                         ISCSI_ADDRESS=`parse_opt "${x}"`
 167                 ;;
 168                 iscsi_port\=*)
 169                         ISCSI_PORT=`parse_opt "${x}"`
 170                 ;;
 171                 iscsi_username\=*)
 172                         ISCSI_USERNAME=`parse_opt "${x}"`
 173                 ;;
 174                 iscsi_password\=*)
 175                         ISCSI_PASSWORD=`parse_opt "${x}"`
 176                 ;;
 177                 iscsi_username_in\=*)
 178                         ISCSI_USERNAME_IN=`parse_opt "${x}"`
 179                 ;;
 180                 iscsi_password_in\=*)
 181                         ISCSI_PASSWORD_IN=`parse_opt "${x}"`
 182                 ;;
 183                 iscsi_debug\=*)
 184                         ISCSI_DEBUG=`parse_opt "${x}"`
 185                 ;;
 186                 # Crypto
 187                 crypt_root\=*)
 188                         CRYPT_ROOT=`parse_opt "${x}"`
 189                 ;;
 190                 crypt_swap\=*)
 191                         CRYPT_SWAP=`parse_opt "${x}"`
 192                 ;;
 193                 root_key\=*)
 194                         CRYPT_ROOT_KEY=`parse_opt "${x}"`
 195                 ;;
 196                 root_keydev\=*)
 197                         CRYPT_ROOT_KEYDEV=`parse_opt "${x}"`
 198                 ;;
 199                 swap_key\=*)
 200                         CRYPT_SWAP_KEY=`parse_opt "${x}"`
 201                 ;;
 202                 swap_keydev\=*)
 203                         CRYPT_SWAP_KEYDEV=`parse_opt "${x}"`
 204                 ;;
 205                 real_resume\=*|resume\=*)
 206                         REAL_RESUME=`parse_opt "${x}"`
 207                 ;;
 208                 noresume)
 209                         NORESUME=1
 210                 ;;
 211                 crypt_silent)
 212                         CRYPT_SILENT=1
 213                 ;;
 214                 real_rootflags\=*)
 215                         REAL_ROOTFLAGS=`parse_opt "${x}"`
 216                 ;;
 217                 keymap\=*)
 218                         keymap=`parse_opt "${x}"`
 219                 ;;
 220                 unionfs)
 221                         if [ ! -x /sbin/unionfs ]
 222                         then
 223                                 USE_UNIONFS_NORMAL=0
 224                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 225                         else
 226                                 USE_UNIONFS_NORMAL=1
 227                         fi
 228                         ;;
 229                 nounionfs)
 230                         USE_UNIONFS_NORMAL=0
 231                         ;;
 232 #                 unionfs\=*)
 233 #                         if [ ! -x /sbin/unionfs ]
 234 #                         then
 235 #                                 USE_UNIONFS_NORMAL=0
 236 #                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 237 #                         else
 238 #                                 USE_UNIONFS_NORMAL=1
 239 #                                 CMD_UNIONFS=`parse_opt "${x}"`
 240 #                                 echo ${CMD_UNIONFS}|grep , >/dev/null 2>&1
 241 #                                 if [ $? -eq 0 ]
 242 #                                 then
 243 #                                         UID=`echo ${CMD_UNIONFS#*,}`
 244 #                                         UNIONFS=`echo ${CMD_UNIONFS%,*}`
 245 #                                 else
 246 #                                         UNIONFS=${CMD_UNIONFS}
 247 #                                 fi
 248 #                         fi
 249 #                 ;;
 250         esac
 251 done
 252
 253 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" = '0' \)  -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
 254 then
 255         REAL_ROOT="${FAKE_ROOT}"
 256 fi
 257
 258 splash 'init'
 259
 260 cmdline_hwopts
 261
 262 # Mount sysfs
 263 mount_sysfs
 264
 265 # Setup hotplugging for firmware loading
 266 setup_hotplug
 267
 268 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
 269 if [ -z "${DO_modules}" ]
 270 then
 271         good_msg 'Skipping module load; disabled via commandline'
 272 elif [ -d "/lib/modules/${KV}" ]
 273 then
 274         good_msg 'Loading modules'
 275         # Load appropriate kernel modules
 276         if [ "${NODETECT}" != '1' ]
 277         then
 278                 for modules in ${MY_HWOPTS}
 279                 do
 280                         modules_scan ${modules}
 281                 done
 282         fi
 283         # Always eval doload=...
 284         modules_load ${MDOLIST}
 285 else
 286         good_msg 'Skipping module load; no modules in the ramdisk!'
 287 fi
 288
 289 # Delay if needed for USB hardware
 290 sdelay
 291
 292 # Setup slow USB bits
 293 setup_slowusb
 294 # if doslowusb is passed, pause other 10 seconds
 295 [ "${DO_slowusb}" ] && sleep 10
 296
 297 # Start device manager
 298 start_dev_mgr
 299
 300 # Start iSCSI
 301 startiscsi
 302
 303 # let iscsid settle - otherwise mounting the iSCSI-disk will fail (very rarely, though)
 304 sleep 1
 305
 306 # Setup md device nodes if they dont exist
 307 setup_md_device
 308
 309 # Scan volumes
 310 startVolumes
 311
 312 setup_keymap
 313
 314 # Initialize LUKS root device except for livecd's
 315 if [ "${CDROOT}" != 1 ]
 316 then
 317         startLUKS
 318         if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
 319         then
 320                 case "${REAL_RESUME}" in
 321                         LABEL\=*|UUID\=*)
 322
 323                                 RESUME_DEV=""
 324                                 retval=1
 325
 326                                 if [ ${retval} -ne 0 ]; then
 327                                         RESUME_DEV=`findfs "${REAL_RESUME}" 2>/dev/null`
 328                                         retval=$?
 329                                 fi
 330
 331                                 if [ ${retval} -ne 0 ]; then
 332                                         RESUME_DEV=`busybox findfs "${REAL_RESUME}" 2>/dev/null`
 333                                         retval=$?
 334                                 fi
 335
 336                                 if [ ${retval} -ne 0 ]; then
 337                                         RESUME_DEV=`blkid -t "${REAL_RESUME}" | cut -d ":" -f 1 2>/dev/null`
 338                                         retval=$?
 339                                 fi
 340
 341                                 if [ ${retval} -eq 0 ] && [ -n "${RESUME_DEV}" ]; then
 342                                         good_msg "Detected real_resume=${RESUME_DEV}"
 343                                         REAL_RESUME="${RESUME_DEV}"
 344                                 fi
 345                                 ;;
 346                 esac
 347
 348                 do_resume
 349         fi
 350 fi
 351
 352 mkdir -p "${NEW_ROOT}"
 353 CHROOT="${NEW_ROOT}"
 354
 355 # Run debug shell if requested
 356 rundebugshell
 357
 358 if [ "${CDROOT}" = '1' ]
 359 then
 360         good_msg "Making tmpfs for ${NEW_ROOT}"
 361         mount -n -t tmpfs tmpfs "${NEW_ROOT}"
 362
 363         for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
 364         do
 365                 mkdir -p "${NEW_ROOT}/${i}"
 366                 chmod 755 "${NEW_ROOT}/${i}"
 367         done
 368         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 369         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 370
 371         # For SGI LiveCDs ...
 372         if [ "${LOOPTYPE}" = "sgimips" ]
 373         then
 374                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 375                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 376         fi
 377
 378         # Required for splash to work.  Not an issue with the initrd as this
 379         # device isn't created there and is not needed.
 380         if [ -e /dev/tty1 ]
 381         then
 382                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 383         fi
 384
 385         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 386         then
 387                 bootstrapCD
 388         fi
 389
 390         if [ "${REAL_ROOT}" = '' ]
 391         then
 392                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 393
 394                 COUNTER=0
 395                 while [ ${COUNTER} -lt 3 ]; do
 396                         sleep 3
 397                         echo -n '.'
 398                         let COUNTER=${COUNTER}+1
 399                 done
 400
 401                 sleep 1
 402                 echo -e "${NORMAL}"
 403                 bootstrapCD
 404         fi
 405
 406         if [ "${REAL_ROOT}" = '' ]
 407         then
 408                 # Undo stuff
 409                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 410                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 411                 umount /sys 2>/dev/null
 412
 413                 umount  "${NEW_ROOT}"
 414                 rm -rf  "${NEW_ROOT}/*"
 415
 416                 bad_msg 'Could not find CD to boot, something else needed!'
 417                 CDROOT=0
 418         fi
 419 fi
 420
 421 # Determine root device
 422 good_msg 'Determining root device...'
 423 while true
 424 do
 425         while [ "${got_good_root}" != '1' ]
 426         do
 427                 case "${REAL_ROOT}" in
 428                         LABEL\=*|UUID\=*)
 429
 430                                 ROOT_DEV=""
 431                                 retval=1
 432
 433                                 if [ ${retval} -ne 0 ]; then
 434                                         ROOT_DEV=`findfs "${REAL_ROOT}" 2>/dev/null`
 435                                         retval=$?
 436                                 fi
 437
 438                                 if [ ${retval} -ne 0 ]; then
 439                                         ROOT_DEV=`busybox findfs "${REAL_ROOT}" 2>/dev/null`
 440                                         retval=$?
 441                                 fi
 442
 443                                 if [ ${retval} -ne 0 ]; then
 444                                         ROOT_DEV=`blkid -l -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null`
 445                                         retval=$?
 446                                 fi
 447
 448                                 if [ ${retval} -eq 0 ] && [ -n "${ROOT_DEV}" ]; then
 449                                         good_msg "Detected real_root=${ROOT_DEV}"
 450                                         REAL_ROOT="${ROOT_DEV}"
 451                                 else
 452                                         whereis "REAL_ROOT" "root block device"
 453                                         got_good_root=0
 454                                         continue
 455                                 fi
 456                                 ;;
 457                 esac
 458
 459                 if [ "${REAL_ROOT}" = '' ]
 460                 then
 461                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 462                         whereis "REAL_ROOT" "root block device"
 463                         got_good_root=0
 464
 465                 # Check for a block device or /dev/nfs
 466                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 467                 then
 468                         got_good_root=1
 469
 470                 else
 471                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 472                         REAL_ROOT=""
 473                         got_good_root=0
 474                 fi
 475         done
 476
 477
 478         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 479         then
 480                 # CD already mounted; no further checks necessary
 481                 break
 482         elif [ "${LOOPTYPE}" = "sgimips" ]
 483         then
 484                 # sgimips mounts the livecd root partition directly
 485                 # there is no isofs filesystem to worry about
 486                 break
 487         else
 488                 good_msg "Mounting root..."
 489
 490                 # Try to mount the device as ${NEW_ROOT}
 491                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 492                         findnfsmount
 493                 else
 494                         # mount ro so fsck doesn't barf later
 495                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 496                                 mount -o ro ${REAL_ROOT} ${NEW_ROOT}
 497                         else
 498                                 good_msg "Using mount -o ro,${REAL_ROOTFLAGS}"
 499                                 mount -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 500                         fi
 501                 fi
 502
 503                 # If mount is successful break out of the loop
 504                 # else not a good root and start over.
 505                 if [ "$?" = '0' ]
 506                 then
 507                         if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 508                         then
 509                                 break
 510                         else
 511                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 512                                 got_good_root=0
 513                                 REAL_ROOT=''
 514                         fi
 515                 else
 516                         bad_msg "Could not mount specified ROOT, try again"
 517                         got_good_root=0
 518                         REAL_ROOT=''
 519                 fi
 520         fi
 521 done
 522 # End determine root device
 523
 524 #verbose_kmsg
 525
 526 # If CD root is set determine the looptype to boot
 527 if [ "${CDROOT}" = '1' ]
 528 then
 529         good_msg 'Determining looptype ...'
 530         cd "${NEW_ROOT}"
 531
 532         # Find loop and looptype
 533         [ -z "${LOOP}" ] && find_loop
 534         [ -z "${LOOPTYPE}" ] && find_looptype
 535
 536         cache_cd_contents
 537
 538         # If encrypted, find key and mount, otherwise mount as usual
 539         if [ -n "${CRYPT_ROOT}" ]
 540         then
 541                 CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)"
 542                 CRYPT_ROOT='/dev/loop0'
 543                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 544
 545                 losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 546                 test_success 'Preparing loop filesystem'
 547
 548                 startLUKS
 549
 550                 case ${LOOPTYPE} in
 551                         normal)
 552                                 MOUNTTYPE="ext2"
 553                                 ;;
 554                         *)
 555                                 MOUNTTYPE="${LOOPTYPE}"
 556                                 ;;
 557                 esac
 558                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 559                 test_success 'Mount filesystem'
 560                 FS_LOCATION='mnt/livecd'
 561         # Setup the loopback mounts, if unencrypted
 562         else
 563                 if [ "${LOOPTYPE}" = 'normal' ]
 564                 then
 565                         good_msg 'Mounting loop filesystem'
 566                         mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 567                         test_success 'Mount filesystem'
 568                         FS_LOCATION='mnt/livecd'
 569                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 570                 then
 571                         good_msg 'Mounting squashfs filesystem'
 572                         mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 573                         test_success 'Mount filesystem'
 574                         FS_LOCATION='mnt/livecd'
 575                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 576                 then
 577                         good_msg 'Mounting gcloop filesystem'
 578                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 579                         test_success 'losetup the loop device'
 580
 581                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 582                         test_success 'Mount the losetup loop device'
 583                         FS_LOCATION='mnt/livecd'
 584                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 585                 then
 586                         FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}"
 587                 elif [ "${LOOPTYPE}" = 'noloop' ]
 588                 then
 589                         FS_LOCATION='mnt/cdrom'
 590                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 591                 then
 592                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 593                         # partition on the cdrom and returns this offset for losetup
 594                         #
 595                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 596                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 597                         #
 598                         # We use the value given to losetup to set /dev/loop0 to point
 599                         # to the liveCD root partition, and then mount /dev/loop0 as
 600                         # the LiveCD rootfs
 601                         good_msg 'Locating the SGI LiveCD Root Partition'
 602                         echo ' ' | \
 603                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 604                                         "${NEW_ROOT}${CDROOT_DEV}" \
 605                                         "${NEW_ROOT}${REAL_ROOT}"
 606                         test_success 'losetup /dev/sr0 /dev/loop0'
 607
 608                         good_msg 'Mounting the Root Partition'
 609                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 610                         test_success 'mount /dev/loop0 /'
 611                         FS_LOCATION='mnt/livecd'
 612                 fi
 613         fi
 614
 615
 616
 617         # Unpacking additional packages from NFS mount
 618         # This is useful for adding kernel modules to /lib
 619         # We do this now, so that additional packages can add whereever they want.
 620         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 621         then
 622                 if [ -e "${NEW_ROOT}/mnt/cdrom/add" ]
 623                 then
 624                                 for targz in `ls ${NEW_ROOT}/mnt/cdrom/add/*.tar.gz`
 625                                 do
 626                                         tarname=`basename ${targz}`
 627                                         good_msg "Adding additional package ${tarname}"
 628                                         (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
 629                                 done
 630                 fi
 631         fi
 632
 633
 634         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 635         then
 636                 setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION}
 637                 CHROOT=/union
 638         else
 639
 640         good_msg "Copying read-write image contents to tmpfs"
 641         # Copy over stuff that should be writable
 642         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
 643
 644         # Now we do the links.
 645         for x in ${ROOT_LINKS}
 646         do
 647                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 648                 then
 649                         ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
 650                 else
 651                         # List all subdirectories of x
 652                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 653                         do
 654                                 # Strip the prefix of the FS_LOCATION
 655                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 656
 657                                 # Skip this directory if we already linked a parent directory
 658                                 if [ "${current_parent}" != '' ]; then
 659                                         var=`echo "${directory}" | grep "^${current_parent}"`
 660                                         if [ "${var}" != '' ]; then
 661                                                 continue
 662                                         fi
 663                                 fi
 664                                 # Test if the directory exists already
 665                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 666                                 then
 667                                         # It does exist, link all the individual files
 668                                         for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
 669                                         do
 670                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 671                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 672                                                 fi
 673                                         done
 674                                 else
 675                                         # It does not exist, make a link to the livecd
 676                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 677                                         current_parent="${directory}"
 678                                 fi
 679                         done
 680                 fi
 681         done
 682
 683         mkdir initramfs proc tmp sys 2>/dev/null
 684         chmod 1777 tmp
 685
 686         fi
 687
 688         #UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'`
 689         #if [ "${UML}" = 'UML' ]
 690         #then
 691         #       # UML Fixes
 692         #       good_msg 'Updating for uml system'
 693         #fi
 694
 695         # Let Init scripts know that we booted from CD
 696         export CDBOOT
 697         CDBOOT=1
 698 else
 699         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 700         then
 701                 mkdir /union_changes
 702                 mount -t tmpfs tmpfs /union_changes
 703                 setup_unionfs /union_changes ${NEW_ROOT}
 704                 mkdir -p ${UNION}/tmp/.initrd
 705         fi
 706 fi
 707
 708 # Execute script on the cdrom just before boot to update things if necessary
 709 cdupdate
 710
 711 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 712 then
 713         good_msg "Entering ${SUBDIR} to boot"
 714         CHROOT="${CHROOT}/${SUBDIR}"
 715 fi
 716
 717 verbose_kmsg
 718
 719 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 720 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 721 then
 722         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
 723 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 724 then
 725         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
 726 fi
 727
 728 cd "${CHROOT}"
 729 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
 730 echo -ne "${BOLD}.${NORMAL}"
 731 umount /sys || echo '*: Failed to unmount the ramdisk /sys!'
 732 umount /proc || echo '*: Failed to unmount the ramdisk /proc!'
 733 echo -e "${BOLD}.${NORMAL}"
 734
 735 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 736
 737 # If we get here, something bad has happened
 738 splash 'verbose'
 739
 740 echo 'A fatal error has probably occured since /sbin/init did not'
 741 echo 'boot correctly. Trying to open a shell...'
 742 echo
 743 exec /bin/bash
 744 exec /bin/sh
 745 exec /bin/ash
 746 exec sh