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 REAL_ROOT=''
  45 FAKE_ROOT=''
  46 REAL_ROOTFLAGS=''
  47 CRYPT_SILENT=0
  48 for x in ${CMDLINE}
  49 do
  50         case "${x}" in
  51                 real_root\=*)
  52                         REAL_ROOT=`parse_opt "${x}"`
  53                 ;;
  54                 root\=*)
  55                         FAKE_ROOT=`parse_opt "${x}"`
  56                 ;;
  57                 subdir\=*)
  58                         SUBDIR=`parse_opt "${x}"`
  59                 ;;
  60                 real_init\=*)
  61                         REAL_INIT=`parse_opt "${x}"`
  62                 ;;
  63                 init_opts\=*)
  64                         INIT_OPTS=`parse_opt "${x}"`
  65                 ;;
  66                 # Livecd options
  67                 cdroot)
  68                         CDROOT=1
  69                 ;;
  70                 cdroot\=*)
  71                         CDROOT=1
  72                         CDROOT_DEV=`parse_opt "${x}"`
  73                 ;;
  74                 cdroot_type\=*)
  75                         CDROOT_TYPE=`parse_opt "${x}"`
  76                 ;;
  77                 # Start livecd loop, looptype options
  78                 loop\=*)
  79                         LOOP=`parse_opt "${x}"`
  80                 ;;
  81                 looptype\=*)
  82                         LOOPTYPE=`parse_opt "${x}"`
  83                 ;;
  84                 # Start Volume manager options
  85                 dolvm)
  86                         USE_LVM_NORMAL=1
  87                 ;;
  88                 dolvm2)
  89                         bad_msg 'Using dolvm2 is deprecated, use dolvm, instead.'
  90                         USE_LVM_NORMAL=1
  91                 ;;
  92                 domdadm)
  93                         USE_MDADM=1
  94                 ;;
  95                 dodmraid)
  96                         USE_DMRAID_NORMAL=1
  97                 ;;
  98                 dodmraid\=*)
  99                         DMRAID_OPTS=`parse_opt "${x}"`
 100                         USE_DMRAID_NORMAL=1
 101                 ;;
 102                 doevms)
 103                         USE_EVMS_NORMAL=1
 104                 ;;
 105                 doevms2)
 106                         bad_msg 'Using doevms2 is deprecated, use doevms, instead.'
 107                         USE_EVMS_NORMAL=1
 108                 ;;
 109                 # Debug Options
 110                 debug)
 111                         DEBUG='yes'
 112                 ;;
 113                 # Scan delay options
 114                 scandelay\=*)
 115                         SDELAY=`parse_opt "${x}"`
 116                 ;;
 117                 scandelay)
 118                         SDELAY=10
 119                 ;;
 120                 # Module no-loads
 121                 doload\=*)
 122                         MDOLIST=`parse_opt "${x}"`
 123                         MDOLIST="`echo ${MDOLIST} | sed -e 's/,/ /g'`"
 124                 ;;
 125                 nodetect)
 126                         NODETECT=1
 127                 ;;
 128                 noload\=*)
 129                         MLIST=`parse_opt "${x}"`
 130                         MLIST="`echo ${MLIST} | sed -e 's/,/ /g'`"
 131                         export MLIST
 132                 ;;
 133                 # Redirect output to a specific tty
 134                 CONSOLE\=*\|console\=*)
 135                         CONSOLE=`parse_opt "${x}"`
 136                         exec >${CONSOLE} <${CONSOLE} 2>&1
 137                 ;;
 138                 # /dev/md
 139                 lvmraid\=*)
 140                         RAID_DEVICES="`parse_opt ${x}`"
 141                         RAID_DEVICES="`echo ${RAID_DEVICES} | sed -e 's/,/ /g'`"
 142                 ;;
 143                 part\=*)
 144                         MDPART=`parse_opt "${x}"`
 145                 ;;
 146                 # NFS
 147                 ip\=*)
 148                         IP=`parse_opt "${x}"`
 149                 ;;
 150                 nfsroot\=*)
 151                         NFSROOT=`parse_opt "${x}"`
 152                 ;;
 153                 crypt_root\=*)
 154                         CRYPT_ROOT=`parse_opt "${x}"`
 155                 ;;
 156                 crypt_swap\=*)
 157                         CRYPT_SWAP=`parse_opt "${x}"`
 158                 ;;
 159                 root_key\=*)
 160                         CRYPT_ROOT_KEY=`parse_opt "${x}"`
 161                 ;;
 162                 root_keydev\=*)
 163                         CRYPT_ROOT_KEYDEV=`parse_opt "${x}"`
 164                 ;;
 165                 swap_key\=*)
 166                         CRYPT_SWAP_KEY=`parse_opt "${x}"`
 167                 ;;
 168                 swap_keydev\=*)
 169                         CRYPT_SWAP_KEYDEV=`parse_opt "${x}"`
 170                 ;;
 171                 real_resume\=*)
 172                         REAL_RESUME=`parse_opt "${x}"`
 173                 ;;
 174                 noresume)
 175                         NORESUME=1
 176                 ;;
 177                 crypt_silent)
 178                         CRYPT_SILENT=1
 179                 ;;
 180                 real_rootflags\=*)
 181                         REAL_ROOTFLAGS=`parse_opt "${x}"`
 182                 ;;
 183                 keymap\=*)
 184                         keymap=`parse_opt "${x}"`
 185                 ;;
 186         esac
 187 done
 188
 189 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" -eq 0 \)  -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
 190 then
 191         REAL_ROOT="${FAKE_ROOT}"
 192 fi
 193
 194 splash 'init'
 195
 196 detect_sbp2_devices
 197 cmdline_hwopts
 198
 199 # Mount sysfs
 200 mount_sysfs
 201
 202 # Setup hotplugging for firmware loading
 203 setup_hotplug
 204
 205 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
 206 if [ -z "${DO_modules}" ]
 207 then
 208         good_msg 'Skipping module load; disabled via commandline'
 209 elif [ -d "/lib/modules/${KV}" ]
 210 then
 211         good_msg 'Loading modules'
 212         # Load appropriate kernel modules
 213         if [ "${NODETECT}" != '1' ]
 214         then
 215                 for modules in ${MY_HWOPTS}
 216                 do
 217                         modules_scan ${modules}
 218                 done
 219         fi
 220         # Always eval doload=...
 221         modules_load ${MDOLIST}
 222 else
 223         good_msg 'Skipping module load; no modules in the ramdisk!'
 224 fi
 225
 226 # Delay if needed for USB hardware
 227 sdelay
 228
 229 # Start device manager
 230 start_dev_mgr
 231
 232 # Setup md device nodes if they dont exist
 233 setup_md_device
 234
 235 # Scan volumes
 236 startVolumes
 237
 238 setup_keymap
 239
 240 # Initialize LUKS root device except for livecd's
 241 if [ "${CDROOT}" != 1 ]
 242 then
 243         startLUKS
 244         if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
 245         then
 246                 swsusp_resume
 247 #               suspend_resume
 248                 tuxonice_resume
 249         fi
 250 fi
 251
 252 mkdir -p "${NEW_ROOT}"
 253 CHROOT="${NEW_ROOT}"
 254
 255 # Run debug shell if requested
 256 rundebugshell
 257
 258 if [ "${CDROOT}" = '1' ]
 259 then
 260         good_msg "Making tmpfs for ${NEW_ROOT}"
 261         mount -t tmpfs tmpfs "${NEW_ROOT}"
 262
 263         for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
 264         do
 265                 mkdir -p "${NEW_ROOT}/${i}"
 266                 chmod 755 "${NEW_ROOT}/${i}"
 267         done
 268         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 269         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 270
 271         # For SGI LiveCDs ...
 272         if [ "${LOOPTYPE}" = "sgimips" ]
 273         then
 274                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 275                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 276         fi
 277
 278         # Required for splash to work.  Not an issue with the initrd as this
 279         # device isn't created there and is not needed.
 280         if [ -e /dev/tty1 ]
 281         then
 282                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 283         fi
 284
 285         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 286         then
 287                 bootstrapCD
 288         fi
 289
 290         if [ "${REAL_ROOT}" = '' ]
 291         then
 292                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 293
 294                 COUNTER=0
 295                 while [ ${COUNTER} -lt 3 ]; do
 296                         sleep 3
 297                         echo -n '.'
 298                         let COUNTER=${COUNTER}+1
 299                 done
 300
 301                 sleep 1
 302                 echo -e "${NORMAL}"
 303                 bootstrapCD
 304         fi
 305
 306         if [ "${REAL_ROOT}" = '' ]
 307         then
 308                 # Undo stuff
 309                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 310                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 311                 umount /sys 2>/dev/null
 312
 313                 umount  "${NEW_ROOT}"
 314                 rm -rf  "${NEW_ROOT}/*"
 315
 316                 bad_msg 'Could not find CD to boot, something else needed!'
 317                 CDROOT=0
 318         fi
 319 fi
 320
 321 # Determine root device
 322 good_msg 'Determining root device...'
 323 while true
 324 do
 325         while [ "${got_good_root}" != '1' ]
 326         do
 327                 case "${REAL_ROOT}" in
 328                         LABEL\=*|UUID\=*)
 329
 330                                 ROOT_DEV=""
 331                                 retval=1
 332
 333                                 if [ "${retval}" -ne '0' ]; then
 334                                         ROOT_DEV=`findfs "${REAL_ROOT}" 2>/dev/null`
 335                                         retval=$?
 336                                 fi
 337
 338                                 if [ "$retval" -ne '0' ]; then
 339                                         ROOT_DEV=`busybox findfs "${REAL_ROOT}" 2>/dev/null`
 340                                         retval=$?
 341                                 fi
 342
 343                                 if [ "${retval}" -ne '0' ]; then
 344                                         ROOT_DEV=`blkid -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null`
 345                                         retval=$?
 346                                 fi
 347
 348                                 if [ "${retval}" -eq '0' ] && [ -n "${ROOT_DEV}" ]; then
 349                                         good_msg "Detected real_root=${ROOT_DEV}"
 350                                         REAL_ROOT="${ROOT_DEV}"
 351                                 else
 352                                         whereis "REAL_ROOT" "root block device"
 353                                         got_good_root=0
 354                                         continue
 355                                 fi
 356                                 ;;
 357                 esac
 358
 359                 if [ "${REAL_ROOT}" = '' ]
 360                 then
 361                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 362                         whereis "REAL_ROOT" "root block device"
 363                         got_good_root=0
 364
 365                 # Check for a block device or /dev/nfs
 366                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 367                 then
 368                         got_good_root=1
 369
 370                 else
 371                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 372                         REAL_ROOT=""
 373                         got_good_root=0
 374                 fi
 375         done
 376
 377
 378         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 379         then
 380                 # CD already mounted; no further checks necessary
 381                 break
 382         elif [ "${LOOPTYPE}" = "sgimips" ]
 383         then
 384                 # sgimips mounts the livecd root partition directly
 385                 # there is no isofs filesystem to worry about
 386                 break
 387         else
 388                 good_msg "Mounting root..."
 389
 390                 # Try to mount the device as ${NEW_ROOT}
 391                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 392                         findnfsmount
 393                 else
 394                         # mount ro so fsck doesn't barf later
 395                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 396                                 mount -o ro ${REAL_ROOT} ${NEW_ROOT}
 397                         else
 398                                 good_msg "Using mount -o ro,${REAL_ROOTFLAGS}"
 399                                 mount -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 400                         fi
 401                 fi
 402
 403                 # If mount is successful break out of the loop
 404                 # else not a good root and start over.
 405                 if [ "$?" = '0' ]
 406                 then
 407                         if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ]
 408                         then
 409                                 break
 410                         else
 411                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 412                                 got_good_root=0
 413                                 REAL_ROOT=''
 414                         fi
 415                 else
 416                         bad_msg "Could not mount specified ROOT, try again"
 417                         got_good_root=0
 418                         REAL_ROOT=''
 419                 fi
 420         fi
 421 done
 422 # End determine root device
 423
 424 #verbose_kmsg
 425
 426 # If CD root is set determine the looptype to boot
 427 if [ "${CDROOT}" = '1' ]
 428 then
 429         good_msg 'Determining looptype ...'
 430         cd "${NEW_ROOT}"
 431
 432         # Find loop and looptype
 433         [ -z "${LOOP}" ] && find_loop
 434         [ -z "${LOOPTYPE}" ] && find_looptype
 435
 436         cache_cd_contents
 437
 438         # If encrypted, find key and mount, otherwise mount as usual
 439         if [ -n "${CRYPT_ROOT}" ]
 440         then
 441                 CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)"
 442                 CRYPT_ROOT='/dev/loop0'
 443                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 444
 445                 losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 446                 test_success 'Preparing loop filesystem'
 447
 448                 startLUKS
 449
 450                 case ${LOOPTYPE} in
 451                         normal)
 452                                 MOUNTTYPE="ext2"
 453                                 ;;
 454                         *)
 455                                 MOUNTTYPE="${LOOPTYPE}"
 456                                 ;;
 457                 esac
 458                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 459                 test_success 'Mount filesystem'
 460                 FS_LOCATION='mnt/livecd'
 461         # Setup the loopback mounts, if unencrypted
 462         else
 463                 if [ "${LOOPTYPE}" = 'normal' ]
 464                 then
 465                         good_msg 'Mounting loop filesystem'
 466                         mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 467                         test_success 'Mount filesystem'
 468                         FS_LOCATION='mnt/livecd'
 469                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 470                 then
 471                         good_msg 'Mounting squashfs filesystem'
 472                         mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 473                         test_success 'Mount filesystem'
 474                         FS_LOCATION='mnt/livecd'
 475                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 476                 then
 477                         good_msg 'Mounting gcloop filesystem'
 478                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 479                         test_success 'losetup the loop device'
 480
 481                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 482                         test_success 'Mount the losetup loop device'
 483                         FS_LOCATION='mnt/livecd'
 484                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 485                 then
 486                         FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}"
 487                 elif [ "${LOOPTYPE}" = 'noloop' ]
 488                 then
 489                         FS_LOCATION='mnt/cdrom'
 490                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 491                 then
 492                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 493                         # partition on the cdrom and returns this offset for losetup
 494                         #
 495                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 496                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 497                         #
 498                         # We use the value given to losetup to set /dev/loop0 to point
 499                         # to the liveCD root partition, and then mount /dev/loop0 as
 500                         # the LiveCD rootfs
 501                         good_msg 'Locating the SGI LiveCD Root Partition'
 502                         echo ' ' | \
 503                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 504                                         "${NEW_ROOT}${CDROOT_DEV}" \
 505                                         "${NEW_ROOT}${REAL_ROOT}"
 506                         test_success 'losetup /dev/sr0 /dev/loop0'
 507
 508                         good_msg 'Mounting the Root Partition'
 509                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 510                         test_success 'mount /dev/loop0 /'
 511                         FS_LOCATION='mnt/livecd'
 512                 fi
 513         fi
 514
 515         # Unpacking additional packages from NFS mount
 516         # This is useful for adding kernel modules to /lib
 517         # We do this now, so that additional packages can add whereever they want.
 518         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 519         then
 520                 if [ -e "${CHROOT}/mnt/cdrom/add" ]
 521                 then
 522                                 for targz in `ls ${CHROOT}/mnt/cdrom/add/*.tar.gz`
 523                                 do
 524                                         tarname=`basename ${targz}`
 525                                         good_msg "Adding additional package ${tarname}"
 526                                         (cd ${CHROOT} ; /bin/tar -xzf ${targz})
 527                                 done
 528                 fi
 529         fi
 530
 531
 532         good_msg "Copying read-write image contents to tmpfs"
 533         # Copy over stuff that should be writable
 534         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
 535
 536         # Now we do the links.
 537         for x in ${ROOT_LINKS}
 538         do
 539                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 540                 then
 541                         ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
 542                 else
 543                         # List all subdirectories of x
 544                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 545                         do
 546                                 # Strip the prefix of the FS_LOCATION
 547                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 548
 549                                 # Skip this directory if we already linked a parent directory
 550                                 if [ "${curent_parrent}" != '' ]; then
 551                                         var=`echo "${directory}" | grep "^${curent_parrent}"`
 552                                         if [ "${var}" != '' ]; then
 553                                                 continue
 554                                         fi
 555                                 fi
 556                                 # Test if the directory exists already
 557                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 558                                 then
 559                                         # It does exist, link all the individual files
 560                                         for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
 561                                         do
 562                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 563                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 564                                                 fi
 565                                         done
 566                                 else
 567                                         # It does not exist, make a link to the livecd
 568                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 569                                         current_parent="${directory}"
 570                                 fi
 571                         done
 572                 fi
 573         done
 574
 575         if [ "${DO_slowusb}" ] || [ "${FORCE_slowusb}" ]
 576         then
 577                 sleep 10
 578         fi
 579         mkdir initramfs proc tmp sys 2>/dev/null
 580         chmod 1777 tmp
 581
 582         #UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'`
 583         #if [ "${UML}" = 'UML' ]
 584         #then
 585         #       # UML Fixes
 586         #       good_msg 'Updating for uml system'
 587         #fi
 588
 589         # Let Init scripts know that we booted from CD
 590         export CDBOOT
 591         CDBOOT=1
 592         check_slowusb
 593         if [ "${DO_slowusb}" ] || [ "${FORCE_slowusb}" ]
 594         then
 595                 sleep 10
 596         fi
 597 fi
 598
 599 # Execute script on the cdrom just before boot to update things if necessary
 600 cdupdate
 601
 602 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 603 then
 604         good_msg "Entering ${SUBDIR} to boot"
 605         CHROOT="${CHROOT}/${SUBDIR}"
 606 fi
 607
 608 verbose_kmsg
 609
 610 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 611 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 612 then
 613         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your /dev is missing files required to boot (console and null)${NORMAL}"
 614 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 615 then
 616         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your /dev is missing tty1, which is required for splash${NORMAL}"
 617 fi
 618
 619 cd "${CHROOT}"
 620 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
 621 echo -ne "${BOLD}.${NORMAL}"
 622 umount /sys || echo '*: Failed to unmount the ramdisk /sys!'
 623 umount /proc || echo '*: Failed to unmount the ramdisk /proc!'
 624 echo -e "${BOLD}.${NORMAL}"
 625
 626 exec switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 627
 628 # If we get here, something bad has happened
 629 splash 'verbose'
 630
 631 echo 'A fatal error has probably occured since /sbin/init did not'
 632 echo 'boot correctly. Trying to open a shell...'
 633 echo
 634 exec /bin/bash
 635 exec /bin/sh
 636 exec /bin/ash
 637 exec sh