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