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 -o noexec,nosuid,nodev proc /proc >/dev/null 2>&1
  24 mount -o remount,rw / >/dev/null 2>&1
  25
  26 # Set up symlinks
  27 /bin/busybox --install -s
  28
  29 if [ "$0" = '/init' ]
  30 then
  31         [ -e /linuxrc ] && rm /linuxrc
  32 fi
  33
  34 quiet_kmsg
  35
  36 CMDLINE=$(cat /proc/cmdline)
  37 # Scan CMDLINE for any specified real_root= or cdroot arguments
  38 FAKE_ROOT=''
  39 REAL_ROOTFLAGS=''
  40 ROOTFSTYPE='auto'
  41 CRYPT_SILENT=0
  42
  43 mkdir -p /etc/cmdline /etc/modprobe.d
  44 for x in ${CMDLINE}
  45 do
  46         case "${x}" in
  47                 real_root=*)
  48                         REAL_ROOT=${x#*=}
  49                 ;;
  50                 root=*)
  51                         FAKE_ROOT=${x#*=}
  52                 ;;
  53                 subdir=*)
  54                         SUBDIR=${x#*=}
  55                 ;;
  56                 real_init=*)
  57                         REAL_INIT=${x#*=}
  58                 ;;
  59                 init_opts=*)
  60                         INIT_OPTS=${x#*=}
  61                 ;;
  62                 # Livecd options
  63                 cdroot)
  64                         CDROOT=1
  65                 ;;
  66                 cdroot=*)
  67                         CDROOT=1
  68                         CDROOT_DEV=${x#*=}
  69                 ;;
  70                 cdroot_type=*)
  71                         CDROOT_TYPE=${x#*=}
  72                 ;;
  73                 cdroot_marker=*)
  74                         CDROOT_MARKER=${x#*=}
  75                 ;;
  76                 # Start livecd loop, looptype options
  77                 loop=*)
  78                         LOOP=${x#*=}
  79                 ;;
  80                 looptype=*)
  81                         LOOPTYPE=${x#*=}
  82                 ;;
  83                 isoboot=*)
  84                         ISOBOOT=${x#*=}
  85                 ;;
  86                 # Start Volume manager options
  87                 dolvm)
  88                         USE_LVM_NORMAL=1
  89                 ;;
  90                 dolvm2)
  91                         bad_msg 'Using dolvm2 is deprecated, use dolvm, instead.'
  92                         USE_LVM_NORMAL=1
  93                 ;;
  94                 domdadm)
  95                         USE_MDADM=1
  96                 ;;
  97                 dodmraid)
  98                         USE_DMRAID_NORMAL=1
  99                 ;;
 100                 dodmraid=*)
 101                         DMRAID_OPTS=${x#*=}
 102                         USE_DMRAID_NORMAL=1
 103                 ;;
 104                 domultipath)
 105                         good_msg "Booting with multipath activated."
 106                         USE_MULTIPATH_NORMAL=1
 107                 ;;
 108                 dozfs*)
 109                         USE_ZFS=1
 110
 111                         if [ "${x#*=}" = 'force' ]
 112                         then
 113                                 ZPOOL_FORCE=-f
 114                         fi
 115                 ;;
 116                 # Debug Options
 117                 debug)
 118                         DEBUG='yes'
 119                 ;;
 120                 # Scan delay options
 121                 scandelay=*)
 122                         SDELAY=${x#*=}
 123                 ;;
 124                 scandelay)
 125                         SDELAY=3
 126                 ;;
 127                 # Module no-loads
 128                 doload=*)
 129                         MDOLIST=${x#*=}
 130                         MDOLIST=$(echo ${MDOLIST} | sed -e 's/,/ /g')
 131                 ;;
 132                 nodetect)
 133                         NODETECT=1
 134                 ;;
 135                 noload=*)
 136                         MLIST=${x#*=}
 137                         MLIST="$(echo ${MLIST} | sed -e 's/,/ /g')"
 138                         export MLIST
 139                 ;;
 140                 # Redirect output to a specific tty
 141                 CONSOLE=*|console=*)
 142                         CONSOLE=${x#*=}
 143                         CONSOLE=$(basename ${CONSOLE})
 144 #                       exec >${CONSOLE} <${CONSOLE} 2>&1
 145                 ;;
 146                 # /dev/md
 147                 lvmraid=*)
 148                         RAID_DEVICES="${x#*=}"
 149                         RAID_DEVICES="$(echo ${RAID_DEVICES} | sed -e 's/,/ /g')"
 150                         USE_LVM_NORMAL=1
 151                 ;;
 152                 part=*)
 153                         MDPART=${x#*=}
 154                 ;;
 155                 # NFS
 156                 ip=*)
 157                         IP=${x#*=}
 158                 ;;
 159                 nfsroot=*)
 160                         NFSROOT=${x#*=}
 161                 ;;
 162                 # iSCSI
 163                 iscsi_initiatorname=*)
 164                         ISCSI_INITIATORNAME=${x#*=}
 165                 ;;
 166                 iscsi_target=*)
 167                         ISCSI_TARGET=${x#*=}
 168                 ;;
 169                 iscsi_tgpt=*)
 170                         ISCSI_TGPT=${x#*=}
 171                 ;;
 172                 iscsi_address=*)
 173                         ISCSI_ADDRESS=${x#*=}
 174                 ;;
 175                 iscsi_port=*)
 176                         ISCSI_PORT=${x#*=}
 177                 ;;
 178                 iscsi_username=*)
 179                         ISCSI_USERNAME=${x#*=}
 180                 ;;
 181                 iscsi_password=*)
 182                         ISCSI_PASSWORD=${x#*=}
 183                 ;;
 184                 iscsi_username_in=*)
 185                         ISCSI_USERNAME_IN=${x#*=}
 186                 ;;
 187                 iscsi_password_in=*)
 188                         ISCSI_PASSWORD_IN=${x#*=}
 189                 ;;
 190                 iscsi_debug=*)
 191                         ISCSI_DEBUG=${x#*=}
 192                 ;;
 193                 iscsi_noibft)
 194                         ISCSI_NOIBFT=1
 195                 ;;
 196                 # Crypto
 197                 crypt_root=*)
 198                         CRYPT_ROOT=${x#*=}
 199                 ;;
 200                 crypt_swap=*)
 201                         CRYPT_SWAP=${x#*=}
 202                 ;;
 203                 root_key=*)
 204                         CRYPT_ROOT_KEY=${x#*=}
 205                 ;;
 206                 root_keydev=*)
 207                         CRYPT_ROOT_KEYDEV=${x#*=}
 208                 ;;
 209                 root_trim=*)
 210                         CRYPT_ROOT_TRIM=${x#*=}
 211                 ;;
 212
 213                 swap_key=*)
 214                         CRYPT_SWAP_KEY=${x#*=}
 215                 ;;
 216                 swap_keydev=*)
 217                         CRYPT_SWAP_KEYDEV=${x#*=}
 218                 ;;
 219                 real_resume=*|resume=*)
 220                         REAL_RESUME=${x#*=}
 221                 ;;
 222                 noresume)
 223                         NORESUME=1
 224                 ;;
 225                 crypt_silent)
 226                         CRYPT_SILENT=1
 227                 ;;
 228                 real_rootflags=*)
 229                         REAL_ROOTFLAGS=${x#*=}
 230                 ;;
 231                 rootfstype=*)
 232                         ROOTFSTYPE=${x#*=}
 233                 ;;
 234                 keymap=*)
 235                         keymap=${x#*=}
 236                 ;;
 237                 aufs)
 238                         USE_AUFS_NORMAL=1
 239                 ;;
 240                 unionfs)
 241                         if [ ! -x /sbin/unionfs ]
 242                         then
 243                                 USE_UNIONFS_NORMAL=0
 244                                 bad_msg 'unionfs binary not found: aborting use of unionfs!'
 245                         else
 246                                 USE_UNIONFS_NORMAL=1
 247                         fi
 248                         ;;
 249                 nounionfs)
 250                         USE_UNIONFS_NORMAL=0
 251                         ;;
 252                 *=*)
 253                         case "${x%%=*}" in
 254                         *.*)
 255                                 echo "${x#*.}" >> "/etc/module_options/${x%%.*}.conf"
 256                         ;;
 257                         esac
 258                 ;;
 259         esac
 260 done
 261
 262 if [ -z "${REAL_ROOT}" -a \( "${CDROOT}" = '0' \)  -a \( "${FAKE_ROOT}" != "/dev/ram0" \) ]
 263 then
 264         REAL_ROOT="${FAKE_ROOT}"
 265 fi
 266
 267 # Set variables based on the value of REAL_ROOT
 268 case "${REAL_ROOT}" in
 269         ZFS=*)
 270                 ZFS_POOL=${REAL_ROOT#*=}
 271                 ZFS_POOL=${ZFS_POOL%%/*}
 272                 USE_ZFS=1
 273         ;;
 274         ZFS)
 275                 USE_ZFS=1
 276         ;;
 277 esac
 278
 279 # Verify that it is safe to use ZFS
 280 if [ "USE_ZFS" = "1" ]
 281 then
 282         if [ -x /sbin/zfs -a -x /sbin/zpool ]
 283         then
 284                 MY_HWOPTS="${MY_HWOPTS} zfs"
 285         else
 286                 USE_ZFS=0
 287
 288                 [ -x /sbin/zfs ] || bad_msg '/sbin/zfs not found!'
 289                 [ -x /sbin/zpool ] || bad_msg '/sbin/zpool not found!'
 290                 bad_msg 'Aborting use of zfs!'
 291         fi
 292 fi
 293
 294 splash 'init'
 295
 296 cmdline_hwopts
 297
 298 # Mount devfs
 299 mount_devfs
 300
 301 # Mount sysfs
 302 mount_sysfs
 303
 304 # Initialize mdev
 305 if [ "${KV_2_6_OR_GREATER}" ]
 306 then
 307         good_msg 'Activating mdev'
 308
 309         # Serialize hotplug events
 310         touch /dev/mdev.seq
 311
 312         # Setup hotplugging for firmware loading
 313         echo /sbin/mdev > /proc/sys/kernel/hotplug
 314 fi
 315
 316 # Load modules listed in MY_HWOPTS if /lib/modules exists for the running kernel
 317 if [ -z "${DO_modules}" ]
 318 then
 319         good_msg 'Skipping module load; disabled via commandline'
 320 elif [ -d "/lib/modules/${KV}" ]
 321 then
 322         good_msg 'Loading modules'
 323         # Load appropriate kernel modules
 324         if [ "${NODETECT}" != '1' ]
 325         then
 326                 for modules in ${MY_HWOPTS}
 327                 do
 328                         modules_scan ${modules}
 329                 done
 330         fi
 331         # Always eval doload=...
 332         modules_load ${MDOLIST}
 333 else
 334         good_msg 'Skipping module load; no modules in the ramdisk!'
 335 fi
 336
 337 # Ensure that device nodes are properly configured
 338 if [ "${KV_2_6_OR_GREATER}" ]
 339 then
 340         mdev -s || bad_msg "mdev -s failed"
 341 fi
 342
 343 # Apply scan delay if specified
 344 sdelay
 345
 346 # Setup slow USB bits
 347 setup_slowusb
 348
 349 cd /
 350
 351 # if doslowusb is passed, pause other 10 seconds here, after mdev load
 352 [ "${DO_slowusb}" ] && sleep 10
 353
 354 # Start iSCSI
 355 if [ -e /bin/iscsistart ]
 356 then
 357         startiscsi
 358 fi
 359
 360 # Setup btrfs, see bug 303529
 361 setup_btrfsctl
 362
 363 # Setup md device nodes if they dont exist
 364 setup_md_device
 365
 366 # Scan volumes
 367 startVolumes
 368
 369 setup_keymap
 370
 371 # Initialize LUKS root device except for livecd's
 372 if [ "${CDROOT}" != 1 ]
 373 then
 374         startLUKS
 375         if [ "${NORESUME}" != '1' ] && [ -n "${REAL_RESUME}" ]
 376         then
 377                 case "${REAL_RESUME}" in
 378                         LABEL=*|UUID=*)
 379
 380                                 RESUME_DEV=""
 381                                 retval=1
 382
 383                                 if [ ${retval} -ne 0 ]; then
 384                                         RESUME_DEV=$(findfs "${REAL_RESUME}" 2>/dev/null)
 385                                         retval=$?
 386                                 fi
 387
 388                                 if [ ${retval} -ne 0 ]; then
 389                                         RESUME_DEV=$(busybox findfs "${REAL_RESUME}" 2>/dev/null)
 390                                         retval=$?
 391                                 fi
 392
 393                                 if [ ${retval} -ne 0 ]; then
 394                                         RESUME_DEV=$(blkid -o device -l -t "${REAL_RESUME}")
 395                                         retval=$?
 396                                 fi
 397
 398                                 if [ ${retval} -eq 0 ] && [ -n "${RESUME_DEV}" ]; then
 399                                         good_msg "Detected real_resume=${RESUME_DEV}"
 400                                         REAL_RESUME="${RESUME_DEV}"
 401                                 fi
 402                                 ;;
 403                 esac
 404
 405                 do_resume
 406         fi
 407 fi
 408
 409 mkdir -p "${NEW_ROOT}"
 410 CHROOT="${NEW_ROOT}"
 411
 412 # Run debug shell if requested
 413 rundebugshell
 414
 415 if [ "${CDROOT}" = '1' ]
 416 then
 417         good_msg "Making tmpfs for ${NEW_ROOT}"
 418         mount -n -t tmpfs tmpfs "${NEW_ROOT}"
 419
 420         for i in dev mnt proc run sys tmp mnt/livecd mnt/key tmp/.initrd mnt/gentoo
 421         do
 422                 mkdir -p "${NEW_ROOT}/${i}"
 423                 chmod 755 "${NEW_ROOT}/${i}"
 424         done
 425         [ ! -d "${CDROOT_PATH}" ] && mkdir -p "${CDROOT_PATH}"
 426         [ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
 427         [ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
 428
 429         # For SGI LiveCDs ...
 430         if [ "${LOOPTYPE}" = "sgimips" ]
 431         then
 432                 [ ! -e "${NEW_ROOT}/dev/sr0" ] && mknod "${NEW_ROOT}/dev/sr0" b 11 0
 433                 [ ! -e "${NEW_ROOT}/dev/loop0" ] && mknod "${NEW_ROOT}/dev/loop0" b 7 0
 434         fi
 435
 436         # Required for splash to work.  Not an issue with the initrd as this
 437         # device isn't created there and is not needed.
 438         if [ -e /dev/tty1 ]
 439         then
 440                 [ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
 441         fi
 442
 443         if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
 444         then
 445                 bootstrapCD
 446         fi
 447
 448         if [ "${REAL_ROOT}" = '' ]
 449         then
 450                 echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
 451
 452                 COUNTER=0
 453                 while [ ${COUNTER} -lt 3 ]; do
 454                         sleep 3
 455                         echo -n '.'
 456                         let COUNTER=${COUNTER}+1
 457                 done
 458
 459                 sleep 1
 460                 echo -e "${NORMAL}"
 461                 bootstrapCD
 462         fi
 463
 464         if [ "${REAL_ROOT}" = '' ]
 465         then
 466                 # Undo stuff
 467                 umount  "${NEW_ROOT}/dev" 2>/dev/null
 468                 umount  "${NEW_ROOT}/sys" 2>/dev/null
 469                 umount /sys 2>/dev/null
 470
 471                 umount  "${NEW_ROOT}"
 472                 rm -rf  "${NEW_ROOT}/*"
 473
 474                 bad_msg 'Could not find CD to boot, something else needed!'
 475                 CDROOT=0
 476         fi
 477 fi
 478
 479 # Determine root device
 480 good_msg 'Determining root device...'
 481 while true
 482 do
 483         while [ "${got_good_root}" != '1' ]
 484         do
 485                 case "${REAL_ROOT}" in
 486                         LABEL=*|UUID=*)
 487
 488                                 ROOT_DEV=""
 489                                 retval=1
 490
 491                                 if [ ${retval} -ne 0 ]; then
 492                                         ROOT_DEV=$(findfs "${REAL_ROOT}" 2>/dev/null)
 493                                         retval=$?
 494                                 fi
 495
 496                                 if [ ${retval} -ne 0 ]; then
 497                                         ROOT_DEV=$(busybox findfs "${REAL_ROOT}" 2>/dev/null)
 498                                         retval=$?
 499                                 fi
 500
 501                                 if [ ${retval} -ne 0 ]; then
 502                                         ROOT_DEV=$(blkid -o device -l -t "${REAL_ROOT}")
 503                                         retval=$?
 504                                 fi
 505
 506                                 if [ ${retval} -eq 0 ] && [ -n "${ROOT_DEV}" ]; then
 507                                         good_msg "Detected real_root=${ROOT_DEV}"
 508                                         REAL_ROOT="${ROOT_DEV}"
 509                                 else
 510                                         prompt_user "REAL_ROOT" "root block device"
 511                                         got_good_root=0
 512                                         continue
 513                                 fi
 514                                 ;;
 515                         ZFS*)
 516                                 if [ "${USE_ZFS}" = '0' ]; then
 517                                         prompt_user "REAL_ROOT" "root block device"
 518                                         continue
 519                                 fi
 520
 521                                 ROOT_DEV="${REAL_ROOT#*=}"
 522                                 if [ "${ROOT_DEV}" != 'ZFS' ]
 523                                 then
 524                                         if [ "$(zfs get type -o value -H ${ROOT_DEV})" = 'filesystem' ]
 525                                         then
 526                                                 got_good_root=1;
 527                                                 REAL_ROOT=${ROOT_DEV}
 528                                                 ROOTFSTYPE=zfs
 529                                         else
 530                                                 bad_msg "${ROOT_DEV} is not a filesystem"
 531                                                 prompt_user "REAL_ROOT" "root block device"
 532                                                 got_good_root=0
 533                                                 continue
 534                                         fi
 535                                 else
 536                                         BOOTFS=$(/sbin/zpool list -H -o bootfs)
 537                                         if [ "${BOOTFS}" != '-' ]
 538                                         then
 539
 540                                                 for i in ${BOOTFS}
 541                                                 do
 542
 543                                                         zfs get type ${i} > /dev/null
 544                                                         retval=$?
 545
 546                                                         if [ ${retval} -eq 0 ]; then
 547                                                                 got_good_root=1
 548                                                                 REAL_ROOT=${i}
 549                                                                 ROOTFSTYPE=zfs
 550                                                                 break
 551                                                         fi
 552
 553                                                 done;
 554
 555                                         else
 556                                                 got_good_root=0
 557                                         fi
 558
 559                                 fi
 560
 561                                 if [ ${got_good_root} -ne 1 ]; then
 562                                         prompt_user "REAL_ROOT" "root block device"
 563                                         got_good_root=0
 564                                 fi
 565
 566                                 continue
 567                                 ;;
 568                 esac
 569
 570                 if [ "${REAL_ROOT}" = '' ]
 571                 then
 572                         # No REAL_ROOT determined/specified. Prompt user for root block device.
 573                         prompt_user "REAL_ROOT" "root block device"
 574                         got_good_root=0
 575
 576                 # Check for a block device or /dev/nfs
 577                 elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 578                 then
 579                         got_good_root=1
 580
 581                 else
 582                         bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 583                         REAL_ROOT=""
 584                         got_good_root=0
 585                 fi
 586         done
 587
 588
 589         if [ "${CDROOT}" = 1 -a "${got_good_root}" = '1' -a "${REAL_ROOT}" != "/dev/nfs" ]
 590         then
 591                 # CD already mounted; no further checks necessary
 592                 break
 593         elif [ "${LOOPTYPE}" = "sgimips" ]
 594         then
 595                 # sgimips mounts the livecd root partition directly
 596                 # there is no isofs filesystem to worry about
 597                 break
 598         else
 599                 good_msg "Mounting $REAL_ROOT as root..."
 600
 601                 if [ "${ROOTFSTYPE}" = 'zfs' ]
 602                 then
 603                         if [ "zfs get -H -o value mountpoint ${REAL_ROOT}" = 'legacy' ]
 604                         then
 605                                 MOUNT_STATE=rw
 606                         else
 607                                 MOUNT_STATE=rw,zfsutil
 608                         fi
 609                 else
 610                         MOUNT_STATE=ro
 611                 fi
 612
 613                 # Try to mount the device as ${NEW_ROOT}
 614                 if [ "${REAL_ROOT}" = '/dev/nfs' ]; then
 615                         findnfsmount
 616                 else
 617                         # If $REAL_ROOT is a symlink
 618                         # Resolve it like util-linux mount does
 619                         [ -L ${REAL_ROOT} ] && REAL_ROOT=`readlink ${REAL_ROOT}`
 620                         # mount ro so fsck doesn't barf later
 621                         if [ "${REAL_ROOTFLAGS}" = '' ]; then
 622                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ${MOUNT_STATE}"
 623                                 mount -t ${ROOTFSTYPE} -o ${MOUNT_STATE} ${REAL_ROOT} ${NEW_ROOT}
 624                         else
 625                                 good_msg "Using mount -t ${ROOTFSTYPE} -o ${MOUNT_STATE},${REAL_ROOTFLAGS}"
 626                                 mount -t ${ROOTFSTYPE} -o ${MOUNT_STATE},${REAL_ROOTFLAGS} ${REAL_ROOT} ${NEW_ROOT}
 627                         fi
 628                 fi
 629
 630                 # If mount is successful break out of the loop
 631                 # else not a good root and start over.
 632                 if [ "$?" = '0' ]
 633                 then
 634                         if [ -d ${NEW_ROOT}/dev -a -x "${NEW_ROOT}${REAL_INIT:-/sbin/init}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 635                         then
 636                                 break
 637                         else
 638                                 bad_msg "The filesystem mounted at ${REAL_ROOT} does not appear to be a valid /, try again"
 639                                 got_good_root=0
 640                                 REAL_ROOT=''
 641                         fi
 642                 else
 643                         bad_msg "Could not mount specified ROOT, try again"
 644                         got_good_root=0
 645                         REAL_ROOT=''
 646                 fi
 647         fi
 648 done
 649 # End determine root device
 650
 651 #verbose_kmsg
 652
 653 # If CD root is set determine the looptype to boot
 654 if [ "${CDROOT}" = '1' ]
 655 then
 656         good_msg 'Determining looptype ...'
 657         cd "${NEW_ROOT}"
 658
 659         # Find loop and looptype
 660         [ -z "${LOOP}" ] && find_loop
 661         [ -z "${LOOPTYPE}" ] && find_looptype
 662
 663         cache_cd_contents
 664
 665         # If encrypted, find key and mount, otherwise mount as usual
 666         if [ -n "${CRYPT_ROOT}" ]
 667         then
 668                 CRYPT_ROOT_KEY="$(head -n 1 "${CDROOT_PATH}"/${CDROOT_MARKER})"
 669                 CRYPT_ROOT='/dev/loop0'
 670                 good_msg 'You booted an encrypted livecd' "${CRYPT_SILENT}"
 671
 672                 losetup /dev/loop0 "${CDROOT_PATH}/${LOOPEXT}${LOOP}"
 673                 test_success 'Preparing loop filesystem'
 674
 675                 startLUKS
 676
 677                 case ${LOOPTYPE} in
 678                         normal)
 679                                 MOUNTTYPE="ext2"
 680                                 ;;
 681                         *)
 682                                 MOUNTTYPE="${LOOPTYPE}"
 683                                 ;;
 684                 esac
 685                 mount -t "${MOUNTTYPE}" -o ro /dev/mapper/root "${NEW_ROOT}/mnt/livecd"
 686                 test_success 'Mount filesystem'
 687                 FS_LOCATION='mnt/livecd'
 688         # Setup the loopback mounts, if unencrypted
 689         else
 690                 if [ "${LOOPTYPE}" = 'normal' ]
 691                 then
 692                         good_msg 'Mounting loop filesystem'
 693                         mount -t ext2 -o loop,ro "${CDROOT_PATH}/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd"
 694                         test_success 'Mount filesystem'
 695                         FS_LOCATION='mnt/livecd'
 696                 elif [ "${LOOPTYPE}" = 'squashfs' ]
 697                 then
 698                         if [ "${USE_AUFS_NORMAL}" != '1' ]; then
 699                                 good_msg 'Mounting squashfs filesystem'
 700                                 _CACHED_SQUASHFS_PATH="${NEW_ROOT}/mnt/${LOOP}"
 701                                 _squashfs_path="${CDROOT_PATH}/${LOOPEXT}${LOOP}"  # Default to uncached
 702                                 # Upgrade to cached version if possible
 703                                 [ "${DO_cache}" -a -f "${_CACHED_SQUASHFS_PATH}" ] \
 704                                                 && _squashfs_path=${_CACHED_SQUASHFS_PATH}
 705                                 mount -t squashfs -o loop,ro "${_squashfs_path}" "${NEW_ROOT}/mnt/livecd" || {
 706                                         bad_msg "Squashfs filesystem could not be mounted, dropping into shell."
 707                                         if [ -e /proc/filesystems ]; then
 708                                                 fgrep -q squashfs /proc/filesystems || \
 709                                                         bad_msg "HINT: Your kernel does not know filesystem \"squashfs\"."
 710                                         fi
 711                                         do_rundebugshell
 712                                 }
 713                         else
 714                                 good_msg 'Mounting squashfs & aufs filesystems'
 715                                 setup_squashfs_aufs
 716                                 test_success 'Mount filesystem'
 717                         fi
 718                         FS_LOCATION='mnt/livecd'
 719                 elif [ "${LOOPTYPE}" = 'gcloop' ]
 720                 then
 721                         good_msg 'Mounting gcloop filesystem'
 722                         echo ' ' | losetup -E 19 -e ucl-0 -p0 "${NEW_ROOT}/dev/loop0" "${CDROOT_PATH}/${LOOPEXT}${LOOP}"
 723                         test_success 'losetup the loop device'
 724
 725                         mount -t ext2 -o ro "${NEW_ROOT}/dev/loop0" "${NEW_ROOT}/mnt/livecd"
 726                         test_success 'Mount the losetup loop device'
 727                         FS_LOCATION='mnt/livecd'
 728                 elif [ "${LOOPTYPE}" = 'zisofs' ]
 729                 then
 730                         FS_LOCATION="${CDROOT_PATH/\/}/${LOOPEXT}${LOOP}"
 731                 elif [ "${LOOPTYPE}" = 'noloop' ]
 732                 then
 733                         FS_LOCATION="${CDROOT_PATH/\/}"
 734                 elif [ "${LOOPTYPE}" = 'sgimips' ]
 735                 then
 736                         # getdvhoff finds the starting offset (in bytes) of the squashfs
 737                         # partition on the cdrom and returns this offset for losetup
 738                         #
 739                         # All currently supported SGI Systems use SCSI CD-ROMs, so
 740                         # so we know that the CD-ROM is usually going to be /dev/sr0.
 741                         #
 742                         # We use the value given to losetup to set /dev/loop0 to point
 743                         # to the liveCD root partition, and then mount /dev/loop0 as
 744                         # the LiveCD rootfs
 745                         good_msg 'Locating the SGI LiveCD Root Partition'
 746                         echo ' ' | \
 747                                 losetup -o $(getdvhoff "${NEW_ROOT}${REAL_ROOT}" 0) \
 748                                         "${NEW_ROOT}${CDROOT_DEV}" \
 749                                         "${NEW_ROOT}${REAL_ROOT}"
 750                         test_success 'losetup /dev/sr0 /dev/loop0'
 751
 752                         good_msg 'Mounting the Root Partition'
 753                         mount -t squashfs -o ro "${NEW_ROOT}${CDROOT_DEV}" "${NEW_ROOT}/mnt/livecd"
 754                         test_success 'mount /dev/loop0 /'
 755                         FS_LOCATION='mnt/livecd'
 756                 fi
 757         fi
 758
 759
 760
 761         # Unpacking additional packages from NFS mount
 762         # This is useful for adding kernel modules to /lib
 763         # We do this now, so that additional packages can add whereever they want.
 764         if [ "${REAL_ROOT}" = '/dev/nfs' ]
 765         then
 766                 if [ -e "${CDROOT_PATH}/add" ]
 767                 then
 768                                 for targz in $(ls ${CDROOT_PATH}/add/*.tar.gz)
 769                                 do
 770                                         tarname=$(basename ${targz})
 771                                         good_msg "Adding additional package ${tarname}"
 772                                         (cd ${NEW_ROOT} ; /bin/tar -xzf ${targz})
 773                                 done
 774                 fi
 775         fi
 776
 777
 778         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 779         then
 780                 setup_unionfs ${NEW_ROOT} /${FS_LOCATION}
 781                 CHROOT=/union
 782         elif [ "${USE_AUFS_NORMAL}" != '1' ]; then
 783
 784         good_msg "Copying read-write image contents to tmpfs"
 785         # Copy over stuff that should be writable
 786         (cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}") || {
 787                 bad_msg "Copying failed, dropping into a shell."
 788                 do_rundebugshell
 789         }
 790
 791         # Now we do the links.
 792         for x in ${ROOT_LINKS}
 793         do
 794                 if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
 795                 then
 796                         ln -s "$(readlink ${NEW_ROOT}/${FS_LOCATION}/${x})" "${x}" 2>/dev/null
 797                 else
 798                         # List all subdirectories of x
 799                         find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
 800                         do
 801                                 # Strip the prefix of the FS_LOCATION
 802                                 directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
 803
 804                                 # Skip this directory if we already linked a parent directory
 805                                 if [ "${current_parent}" != '' ]; then
 806                                         var=$(echo "${directory}" | grep "^${current_parent}")
 807                                         if [ "${var}" != '' ]; then
 808                                                 continue
 809                                         fi
 810                                 fi
 811                                 # Test if the directory exists already
 812                                 if [ -e "/${NEW_ROOT}/${directory}" ]
 813                                 then
 814                                         # It does exist, link all the individual files
 815                                         for file in $(ls /${NEW_ROOT}/${FS_LOCATION}/${directory})
 816                                         do
 817                                         if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
 818                                                         ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
 819                                                 fi
 820                                         done
 821                                 else
 822                                         # It does not exist, make a link to the livecd
 823                                         ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
 824                                         current_parent="${directory}"
 825                                 fi
 826                         done
 827                 fi
 828         done
 829
 830         mkdir initramfs proc tmp sys run 2>/dev/null
 831         chmod 1777 tmp
 832
 833         # have handy /mnt/cdrom (CDROOT_PATH) as well
 834         _new_cdroot="${NEW_ROOT}${CDROOT_PATH}"
 835         [ ! -d "${_new_cdroot}" ] && mkdir -p "${_new_cdroot}"
 836         mount --bind "${CDROOT_PATH}" "${_new_cdroot}"
 837
 838         fi
 839
 840         #UML=$(cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||')
 841         #if [ "${UML}" = 'UML' ]
 842         #then
 843         #       # UML Fixes
 844         #       good_msg 'Updating for uml system'
 845         #fi
 846
 847         # Let Init scripts know that we booted from CD
 848         export CDBOOT
 849         CDBOOT=1
 850 else
 851         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
 852         then
 853                 mkdir /union_changes
 854                 mount -t tmpfs tmpfs /union_changes
 855                 setup_unionfs /union_changes ${NEW_ROOT}
 856                 mkdir -p ${UNION}/tmp/.initrd
 857         fi
 858 fi
 859
 860 # Mount the additional things as required by udev & systemd
 861 if [ -f ${NEW_ROOT}/etc/initramfs.mounts ]; then
 862         fslist=$(get_mounts_list)
 863 else
 864         fslist="/usr"
 865 fi
 866
 867 for fs in $fslist; do
 868         dev=$(get_mount_device $fs)
 869         [ -z "${dev}" ] && continue
 870         # Resolve it like util-linux mount does
 871         [ -L ${dev} ] && dev=`readlink ${dev}`
 872         # In this case, it's probably part of the filesystem
 873         # and not a mountpoint
 874         [ -z "$dev" ] && continue
 875         fstype=$(get_mount_fstype $fs)
 876         if get_mount_options $fs | fgrep -q bind ; then
 877                 opts='bind'
 878                 dev=${NEW_ROOT}${dev}
 879         else
 880                 # ro must be trailing, and the options will always contain at least 'defaults'
 881                 opts="$(get_mount_options $fs | strip_mount_options),ro"
 882         fi
 883         mnt=${NEW_ROOT}${fs}
 884         cmd="mount -t $fstype -o $opts $dev $mnt"
 885         good_msg "Mounting $dev as ${fs}: $cmd"
 886         if ! $cmd; then
 887                 bad_msg "Unable to mount $dev for $fs"
 888         fi
 889 done
 890
 891 # Execute script on the cdrom just before boot to update things if necessary
 892 cdupdate
 893
 894 if [ "${SUBDIR}" != '' -a -e "${CHROOT}/${SUBDIR}" ]
 895 then
 896         good_msg "Entering ${SUBDIR} to boot"
 897         CHROOT="${CHROOT}/${SUBDIR}"
 898 fi
 899
 900 verbose_kmsg
 901
 902 echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
 903
 904 cd "${CHROOT}"
 905 mkdir "${CHROOT}/proc" "${CHROOT}/sys" "${CHROOT}/run" 2>/dev/null
 906 echo -ne "${BOLD}.${NORMAL}"
 907
 908 # If devtmpfs is mounted, try move it to the new root
 909 # If that fails, try to unmount all possible mounts of devtmpfs as stuff breaks otherwise
 910 for fs in /dev /sys /proc
 911 do
 912         if grep -qs "$fs" /proc/mounts
 913         then
 914                 if ! mount --move $fs "${CHROOT}"$fs
 915                 then
 916                         umount $fs || echo '*: Failed to move and unmount the ramdisk $fs!'
 917                 fi
 918         fi
 919 done
 920
 921 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 922 then
 923         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
 924 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 925 then
 926         echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
 927 fi
 928
 929 echo -e "${BOLD}.${NORMAL}"
 930
 931 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 932
 933 # If we get here, something bad has happened
 934 splash 'verbose'
 935
 936 echo "A fatal error has probably occured since ${REAL_INIT:-/sbin/init} did not"
 937 echo "boot correctly. Trying to open a shell..."
 938 echo
 939 exec /bin/bash
 940 exec /bin/sh
 941 exec /bin/ash
 942 exec /bin/dash
 943 exec sh