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