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