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 "${x}"`
 185                 ;;
 186                 unionfs)
 187                         if [ ! -x /sbin/unionfs ]
 188                         then
 189                                 USE_UNIONFS_NORMAL=0
 190                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 191                         else
 192                                 USE_UNIONFS_NORMAL=1
 193                         fi
 194                         ;;
 195 #                 unionfs\=*)
 196 #                         if [ ! -x /sbin/unionfs ]
 197 #                         then
 198 #                                 USE_UNIONFS_NORMAL=0
 199 #                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 200 #                         else
 201 #                                 USE_UNIONFS_NORMAL=1
 202 #                                 CMD_UNIONFS=`parse_opt "${x}"`
 203 #                                 echo ${CMD_UNIONFS}|grep , >/dev/null 2>&1
 204 #                                 if [ "$?" -eq '0' ]
 205 #                                 then
 206 #                                         UID=`echo ${CMD_UNIONFS#*,}`
 207 #                                         UNIONFS=`echo ${CMD_UNIONFS%,*}`
 208 #                                 else
 209 #                                         UNIONFS=${CMD_UNIONFS}
 210 #                                 fi
 211 #                         fi
 212 #                 ;;
 213         esac
 214 done
 215
 216 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" -eq 0 \)  -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
 217 then
 218         REAL_ROOT="${FAKE_ROOT}"
 219 fi
 220
 221 splash 'init'
 222
 223 detect_sbp2_devices
 224 cmdline_hwopts
 225
 226 # Mount sysfs
 227 mount_sysfs
 228
 229 # Setup hotplugging for firmware loading
 230 setup_hotplug
 231
 232 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
 233 if [ -z "${DO_modules}" ]
 234 then
 235         good_msg 'Skipping module load; disabled via commandline'
 236 elif [ -d "/lib/modules/${KV}" ]
 237 then
 238         good_msg 'Loading modules'
 239         # Load appropriate kernel modules
 240         if [ "${NODETECT}" != '1' ]
 241         then
 242                 for modules in ${MY_HWOPTS}
 243                 do
 244                         modules_scan ${modules}
 245                 done
 246         fi
 247         # Always eval doload=...
 248         modules_load ${MDOLIST}
 249 else
 250         good_msg 'Skipping module load; no modules in the ramdisk!'
 251 fi
 252
 253 # Delay if needed for USB hardware
 254 sdelay
 255
 256 # Start device manager
 257 start_dev_mgr
 258
 259 # Setup md device nodes if they dont exist
 260 setup_md_device
 261
 262 # Scan volumes
 263 startVolumes
 264
 265 setup_keymap
 266
 267 # Initialize LUKS root device except for livecd's
 268 if [ "${CDROOT}" != 1 ]
 269 then
 270         startLUKS
 271         if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
 272         then
 273                 swsusp_resume
 274 #               suspend_resume
 275                 tuxonice_resume
 276         fi
 277 fi
 278
 279 mkdir -p "${NEW_ROOT}"
 280 CHROOT="${NEW_ROOT}"
 281
 282 # Run debug shell if requested
 283 rundebugshell
 284
 285 if [ "${CDROOT}" = '1' ]
 286 then
 287         good_msg "Making tmpfs for ${NEW_ROOT}"
 288         mount -n -t tmpfs tmpfs "${NEW_ROOT}"
 289
 290         for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
 291         do
 292                 mkdir -p "${NEW_ROOT}/${i}"
 293                 chmod 755 "${NEW_ROOT}/${i}"
 294         done
 295         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 296         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 297
 298         # For SGI LiveCDs ...
 299         if [ "${LOOPTYPE}" = "sgimips" ]
 300         then
 301                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 302                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 303         fi
 304
 305         # Required for splash to work.  Not an issue with the initrd as this
 306         # device isn't created there and is not needed.
 307         if [ -e /dev/tty1 ]
 308         then
 309                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 310         fi
 311
 312         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 313         then
 314                 bootstrapCD
 315         fi
 316
 317         if [ "${REAL_ROOT}" = '' ]
 318         then
 319                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 320
 321                 COUNTER=0
 322                 while [ ${COUNTER} -lt 3 ]; do
 323                         sleep 3
 324                         echo -n '.'
 325                         let COUNTER=${COUNTER}+1
 326                 done
 327
 328                 sleep 1
 329                 echo -e "${NORMAL}"
 330                 bootstrapCD
 331         fi
 332
 333         if [ "${REAL_ROOT}" = '' ]
 334         then
 335                 # Undo stuff
 336                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 337                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 338                 umount /sys 2>/dev/null
 339
 340                 umount  "${NEW_ROOT}"
 341                 rm -rf  "${NEW_ROOT}/*"
 342
 343                 bad_msg 'Could not find CD to boot, something else needed!'
 344                 CDROOT=0
 345         fi
 346 fi
 347
 348 # Determine root device
 349 good_msg 'Determining root device...'
 350 while true
 351 do
 352         while [ "${got_good_root}" != '1' ]
 353         do
 354                 case "${REAL_ROOT}" in
 355                         LABEL\=*|UUID\=*)
 356
 357                                 ROOT_DEV=""
 358                                 retval=1
 359
 360                                 if [ "${retval}" -ne '0' ]; then
 361                                         ROOT_DEV=`findfs "${REAL_ROOT}" 2>/dev/null`
 362                                         retval=$?
 363                                 fi
 364
 365                                 if [ "$retval" -ne '0' ]; then
 366                                         ROOT_DEV=`busybox findfs "${REAL_ROOT}" 2>/dev/null`
 367                                         retval=$?
 368                                 fi
 369
 370                                 if [ "${retval}" -ne '0' ]; then
 371                                         ROOT_DEV=`blkid -t "${REAL_ROOT}" | cut -d ":" -f 1 2>/dev/null`
 372                                         retval=$?
 373                                 fi
 374
 375                                 if [ "${retval}" -eq '0' ] && [ -n "${ROOT_DEV}" ]; then
 376                                         good_msg "Detected real_root=${ROOT_DEV}"
 377                                         REAL_ROOT="${ROOT_DEV}"
 378                                 else
 379                                         whereis "REAL_ROOT" "root block device"
 380                                         got_good_root=0
 381                                         continue
 382                                 fi
 383                                 ;;
 384                 esac
 385
 386                 if [ "${REAL_ROOT}" = '' ]
 387                 then
 388                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 389                         whereis "REAL_ROOT" "root block device"
 390                         got_good_root=0
 391
 392                 # Check for a block device or /dev/nfs
 393                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 394                 then
 395                         got_good_root=1
 396
 397                 else
 398                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 399                         REAL_ROOT=""
 400                         got_good_root=0
 401                 fi
 402         done
 403
 404
 405         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 406         then
 407                 # CD already mounted; no further checks necessary
 408                 break
 409         elif [ "${LOOPTYPE}" = "sgimips" ]
 410         then
 411                 # sgimips mounts the livecd root partition directly
 412                 # there is no isofs filesystem to worry about
 413                 break
 414         else
 415                 good_msg "Mounting root..."
 416
 417                 # Try to mount the device as ${NEW_ROOT}
 418                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 419                         findnfsmount
 420                 else
 421                         # mount ro so fsck doesn't barf later
 422                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 423                                 mount -o ro ${REAL_ROOT} ${NEW_ROOT}
 424                         else
 425                                 good_msg "Using mount -o ro,${REAL_ROOTFLAGS}"
 426                                 mount -o ro,${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 427                         fi
 428                 fi
 429
 430                 # If mount is successful break out of the loop
 431                 # else not a good root and start over.
 432                 if [ "$?" = '0' ]
 433                 then
 434                         if [ -d ${NEW_ROOT}/dev -a -x ${NEW_ROOT}/sbin/init ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 435                         then
 436                                 break
 437                         else
 438                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 439                                 got_good_root=0
 440                                 REAL_ROOT=''
 441                         fi
 442                 else
 443                         bad_msg "Could not mount specified ROOT, try again"
 444                         got_good_root=0
 445                         REAL_ROOT=''
 446                 fi
 447         fi
 448 done
 449 # End determine root device
 450
 451 #verbose_kmsg
 452
 453 # If CD root is set determine the looptype to boot
 454 if [ "${CDROOT}" = '1' ]
 455 then
 456         good_msg 'Determining looptype ...'
 457         cd "${NEW_ROOT}"
 458
 459         # Find loop and looptype
 460         [ -z "${LOOP}" ] && find_loop
 461         [ -z "${LOOPTYPE}" ] && find_looptype
 462
 463         cache_cd_contents
 464
 465         # If encrypted, find key and mount, otherwise mount as usual
 466         if [ -n "${CRYPT_ROOT}" ]
 467         then
 468                 CRYPT_ROOT_KEY="$(head -n 1 ${NEW_ROOT}/mnt/cdrom/livecd)"
 469                 CRYPT_ROOT='/dev/loop0'
 470                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 471
 472                 losetup /dev/loop0 "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 473                 test_success 'Preparing loop filesystem'
 474
 475                 startLUKS
 476
 477                 case ${LOOPTYPE} in
 478                         normal)
 479                                 MOUNTTYPE="ext2"
 480                                 ;;
 481                         *)
 482                                 MOUNTTYPE="${LOOPTYPE}"
 483                                 ;;
 484                 esac
 485                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 486                 test_success 'Mount filesystem'
 487                 FS_LOCATION='mnt/livecd'
 488         # Setup the loopback mounts, if unencrypted
 489         else
 490                 if [ "${LOOPTYPE}" = 'normal' ]
 491                 then
 492                         good_msg 'Mounting loop filesystem'
 493                         mount -t ext2 -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 494                         test_success 'Mount filesystem'
 495                         FS_LOCATION='mnt/livecd'
 496                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 497                 then
 498                         good_msg 'Mounting squashfs filesystem'
 499                         mount -t squashfs -o loop,ro "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 500                         test_success 'Mount filesystem'
 501                         FS_LOCATION='mnt/livecd'
 502                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 503                 then
 504                         good_msg 'Mounting gcloop filesystem'
 505                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/cdrom/${LOOPEXT}${LOOP}"
 506                         test_success 'losetup the loop device'
 507
 508                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 509                         test_success 'Mount the losetup loop device'
 510                         FS_LOCATION='mnt/livecd'
 511                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 512                 then
 513                         FS_LOCATION="mnt/cdrom/${LOOPEXT}${LOOP}"
 514                 elif [ "${LOOPTYPE}" = 'noloop' ]
 515                 then
 516                         FS_LOCATION='mnt/cdrom'
 517                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 518                 then
 519                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 520                         # partition on the cdrom and returns this offset for losetup
 521                         #
 522                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 523                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 524                         #
 525                         # We use the value given to losetup to set /dev/loop0 to point
 526                         # to the liveCD root partition, and then mount /dev/loop0 as
 527                         # the LiveCD rootfs
 528                         good_msg 'Locating the SGI LiveCD Root Partition'
 529                         echo ' ' | \
 530                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 531                                         "${NEW_ROOT}${CDROOT_DEV}" \
 532                                         "${NEW_ROOT}${REAL_ROOT}"
 533                         test_success 'losetup /dev/sr0 /dev/loop0'
 534
 535                         good_msg 'Mounting the Root Partition'
 536                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 537                         test_success 'mount /dev/loop0 /'
 538                         FS_LOCATION='mnt/livecd'
 539                 fi
 540         fi
 541
 542
 543
 544         # Unpacking additional packages from NFS mount
 545         # This is useful for adding kernel modules to /lib
 546         # We do this now, so that additional packages can add whereever they want.
 547         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 548         then
 549                 if [ -e "${NEW_ROOT}/mnt/cdrom/add" ]
 550                 then
 551                                 for targz in `ls ${NEW_ROOT}/mnt/cdrom/add/*.tar.gz`
 552                                 do
 553                                         tarname=`basename ${targz}`
 554                                         good_msg "Adding additional package ${tarname}"
 555                                         (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
 556                                 done
 557                 fi
 558         fi
 559
 560
 561         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 562         then
 563                 setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION}
 564                 CHROOT=/union
 565         else
 566
 567         good_msg "Copying read-write image contents to tmpfs"
 568         # Copy over stuff that should be writable
 569         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
 570
 571         # Now we do the links.
 572         for x in ${ROOT_LINKS}
 573         do
 574                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 575                 then
 576                         ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
 577                 else
 578                         # List all subdirectories of x
 579                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 580                         do
 581                                 # Strip the prefix of the FS_LOCATION
 582                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 583
 584                                 # Skip this directory if we already linked a parent directory
 585                                 if [ "${curent_parrent}" != '' ]; then
 586                                         var=`echo "${directory}" | grep "^${curent_parrent}"`
 587                                         if [ "${var}" != '' ]; then
 588                                                 continue
 589                                         fi
 590                                 fi
 591                                 # Test if the directory exists already
 592                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 593                                 then
 594                                         # It does exist, link all the individual files
 595                                         for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
 596                                         do
 597                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 598                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 599                                                 fi
 600                                         done
 601                                 else
 602                                         # It does not exist, make a link to the livecd
 603                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 604                                         current_parent="${directory}"
 605                                 fi
 606                         done
 607                 fi
 608         done
 609
 610         if [ "${DO_slowusb}" ] || [ "${FORCE_slowusb}" ]
 611         then
 612                 sleep 10
 613         fi
 614         mkdir initramfs proc tmp sys 2>/dev/null
 615         chmod 1777 tmp
 616
 617         fi
 618
 619         #UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'`
 620         #if [ "${UML}" = 'UML' ]
 621         #then
 622         #       # UML Fixes
 623         #       good_msg 'Updating for uml system'
 624         #fi
 625
 626         # Let Init scripts know that we booted from CD
 627         export CDBOOT
 628         CDBOOT=1
 629         check_slowusb
 630         if [ "${DO_slowusb}" ] || [ "${FORCE_slowusb}" ]
 631         then
 632                 sleep 10
 633         fi
 634 else
 635         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 636         then
 637                 mkdir /union_changes
 638                 mount -t tmpfs tmpfs /union_changes
 639                 setup_unionfs /union_changes ${NEW_ROOT}
 640                 mkdir -p ${UNION}/tmp/.initrd
 641         fi
 642 fi
 643
 644 # Execute script on the cdrom just before boot to update things if necessary
 645 cdupdate
 646
 647 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 648 then
 649         good_msg "Entering ${SUBDIR} to boot"
 650         CHROOT="${CHROOT}/${SUBDIR}"
 651 fi
 652
 653 verbose_kmsg
 654
 655 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 656 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 657 then
 658         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
 659 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 660 then
 661         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
 662 fi
 663
 664 cd "${CHROOT}"
 665 mkdir "${CHROOT}/proc" "${CHROOT}/sys" 2>/dev/null
 666 echo -ne "${BOLD}.${NORMAL}"
 667 umount /sys || echo '*: Failed to unmount the ramdisk /sys!'
 668 umount /proc || echo '*: Failed to unmount the ramdisk /proc!'
 669 echo -e "${BOLD}.${NORMAL}"
 670
 671 exec env -i /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 672
 673 # If we get here, something bad has happened
 674 splash 'verbose'
 675
 676 echo 'A fatal error has probably occured since /sbin/init did not'
 677 echo 'boot correctly. Trying to open a shell...'
 678 echo
 679 exec /bin/bash
 680 exec /bin/sh
 681 exec /bin/ash
 682 exec sh