defaults/initrd.scripts

   1 #!/bin/ash
   2
   3 . /etc/initrd.defaults
   4
   5 backup() {
   6         echo -ne "\033[0G\033[0K"
   7 }
   8
   9 modules_load() {
  10         for module in $*
  11         do
  12                 echo ${module} >> /etc/modules/extra_load
  13         done
  14
  15         modules_scan extra_load
  16 }
  17
  18 modules_scan() {
  19         local MODS
  20         [ -d "/etc/modules/${1}" ] || touch /etc/modules/${1}
  21
  22         [ -f "/etc/modules/${1}" ] && MODS=`cat /etc/modules/${1}`
  23         for x in ${MODS}
  24         do
  25                 MLOAD=`echo ${MLIST} | sed -e "s/.*${x}.*/${x}/"`
  26                 if [ "${MLOAD}" = "${x}" ] # Only module to no-load
  27                 then
  28                         echo -e "${BOLD}   ::${NORMAL} Skipping ${x}..."
  29                 elif [ "${MLOAD}" = "${MLIST}" ] # == No change == No specified no-load
  30                 then
  31                         [ -n "${DEBUG}" ] && echo -ne "${BOLD}   ::${NORMAL} Checking for ${x}..."
  32                         # find -name does not work since the return status is always zero
  33                         if find /lib/modules/${KV} | grep /"${x}${KSUFF}" >/dev/null 2>&1
  34                         then
  35                                 echo -ne "${BOLD}   ::${NORMAL} Scanning for ${x}..."
  36                                 modprobe ${x} -n
  37                                 backup
  38                                 echo -ne "${NORMAL}"
  39                         fi
  40                 else
  41                         echo -e "${BOLD}   ::${NORMAL} Skipping ${x}..."
  42                 fi
  43         done
  44 }
  45
  46 uppercase(){
  47         # needs tr on busybox
  48         echo $1 | tr 'a-z' 'A-Z'
  49 }
  50
  51
  52 findmediamount() {
  53         # $1 = mount dir name / media name
  54         # $2 = recognition file
  55         # $3 = variable to have the device path
  56         # $4 = actual mount dir path (full path)
  57         # args remaining are possible devices
  58
  59         local media=$1 recon=$2 vrbl=$3 mntdir=$4
  60         shift 4
  61
  62         good_msg "Looking for the ${media}" ${CRYPT_SILENT}
  63
  64         if [ "$#" -gt "0" ]
  65         then
  66                 [ ! -d "${mntdir}" ] && mkdir -p ${mntdir} 2>/dev/null >/dev/null
  67                 if [ -n "${ISOBOOT}" ]
  68                 then
  69                         mntcddir="${mntdir%${media}}iso"
  70                         if [ ! -f ${mntcddir} ]
  71                         then
  72                                 mkdir ${mntcddir}
  73                         fi
  74                 else
  75                         mntcddir=${mntdir}
  76                 fi
  77
  78                 for x in $*
  79                 do
  80                         # Check for a block device to mount
  81                         if [ -b "${x}" ]
  82                         then
  83                                 skip=0
  84                                 bsn=`basename "${x}"`
  85                                 #
  86                                 # If disk and it has at least one partition, skip.
  87                                 # We use /sys/block/${bsn}/${bsn}[0-9]* to make sure that we
  88                                 # don't skip device mapper devices. Even the craziest scenario
  89                                 # deserves a fair chance.
  90                                 #
  91                                 for part in `ls /sys/block/${bsn}/${bsn}*[0-9]* 2>/dev/null`
  92                                 do
  93                                         skip=1
  94                                         break;
  95                                 done
  96                                 if [ ${skip} -eq 1 ]
  97                                 then
  98                                         continue
  99                                 fi
 100                                 good_msg "Attempting to mount media: ${x}" ${CRYPT_SILENT}
 101
 102                                 mount -r -t ${CDROOT_TYPE} ${x} ${mntcddir} >/dev/null 2>&1
 103                                 if [ "$?" = '0' ]
 104                                 then
 105                                         if [ -n "${ISOBOOT}" ]; then
 106                                                 if [ -f ${mntcddir}/${ISOBOOT} ]; then
 107                                                         mount -o loop ${mntcddir}/${ISOBOOT} ${mntdir}
 108                                                         if [ "$?" = "0" ]; then
 109                                                                 good_msg "iso mounted on ${mntdir}"
 110                                                         fi
 111                                                 fi
 112                                         fi
 113
 114                                         # Check for the media
 115                                         if [ -f "${mntdir}/${recon}" ]
 116                                         then
 117                                                 #set REAL_ROOT, CRYPT_ROOT_KEYDEV or whatever ${vrbl} is
 118                                                 eval ${vrbl}'='"${x}"
 119                                                 good_msg "Media found on ${x}" ${CRYPT_SILENT}
 120                                                 break
 121                                         else
 122                                                 umount ${mntcddir}
 123                                         fi
 124                                 fi
 125                         fi
 126                 done
 127         fi
 128
 129         eval local result='$'${vrbl}
 130
 131         [ -n "${result}" ] || bad_msg "Media not found" ${CRYPT_SILENT}
 132 }
 133
 134 devicelist(){
 135         # Locate the cdrom device with our media on it.
 136         # CDROM DEVICES
 137         local DEVICES="/dev/cdroms/* /dev/ide/cd/* /dev/sr*"
 138         # USB Keychain/Storage
 139         DEVICES="$DEVICES /dev/sd*"
 140         # IDE devices
 141         DEVICES="$DEVICES /dev/hd*"
 142         # virtio devices
 143         DEVICES="$DEVICES /dev/vd*"
 144         # USB using the USB Block Driver
 145         DEVICES="$DEVICES /dev/ubd* /dev/ubd/*"
 146         # iSeries devices
 147         DEVICES="$DEVICES /dev/iseries/vcd*"
 148         # builtin mmc/sd card reader devices
 149         DEVICES="$DEVICES /dev/mmcblk* /dev/mmcblk*/*"
 150         # fallback scanning, this might scan something twice, but it's better than
 151         # failing to boot.
 152         [ -e /proc/partitions ] && DEVICES="${DEVICES} $(awk '/([0-9]+[[:space:]]+)/{print "/dev/" $4}' /proc/partitions)"
 153         echo ${DEVICES}
 154 }
 155
 156 bootstrapCD() {
 157         local DEVICES=`devicelist`
 158         # The device was specified on the command line, so there's no need to scan
 159         # a bunch of extra devices
 160         [ -n "${CDROOT_DEV}" ] && DEVICES="${CDROOT_DEV}"
 161
 162         findmediamount "cdrom" "${SUBDIR}/livecd" "REAL_ROOT" "${CDROOT_PATH}" ${DEVICES}
 163 }
 164
 165 bootstrapKey() {
 166         # $1 = ROOT/SWAP
 167         local KEYDEVS=`devicelist`
 168         eval local keyloc='"${CRYPT_'${1}'_KEY}"'
 169
 170         findmediamount "key" "${keyloc}" "CRYPT_${1}_KEYDEV" "/mnt/key" ${KEYDEVS}
 171 }
 172
 173 cache_cd_contents() {
 174         # Check loop file exists and cache to ramdisk if DO_cache is enabled
 175         if [ "${LOOPTYPE}" != "noloop" ] && [ "${LOOPTYPE}" != "sgimips" ]
 176         then
 177                 check_loop
 178                 if [ "${DO_cache}" ]
 179                 then
 180                         # TODO: Check the size of the image versus the size of our tmpfs
 181                         # along with the amount of available RAM and increase tmpfs size
 182                         # if necessary. (Not having awk sucks...)
 183                         # z=0
 184                         # for i in $(cat /proc/meminfo | grep -e ^MemFree -e ^Cached | \
 185                         # cut -d: -f2 | cut -dk -f1 | sed -e "s/^\s*//") ; do
 186                         # z=$(($z + $i)) ; done
 187                         # echo $z
 188                         good_msg "Copying loop file for caching..."
 189                         # Verify that the needed directory exists
 190                         mkdir -p "$(dirname ${NEW_ROOT}/mnt/${LOOP})"
 191                         cp -a ${CDROOT_PATH}/${LOOP} ${NEW_ROOT}/mnt/${LOOP}
 192                         if [ $? -ne 0 ]
 193                         then
 194                                 warn_msg "Failed to cache the loop file! Lack of RAM?"
 195                                 rm -rf ${NEW_ROOT}/mnt/${LOOP} 2>/dev/null
 196                                 rm -rf ${NEW_ROOT}/mnt/livecd.* 2>/dev/null
 197                                 rm -rf ${NEW_ROOT}/mnt/image.* 2>/dev/null
 198                                 rm -rf ${NEW_ROOT}/mnt/zisofs 2>/dev/null
 199                         fi
 200                 fi
 201         fi
 202 }
 203
 204 mount_sysfs() {
 205         mount -t sysfs sysfs /sys -o noexec,nosuid,nodev >/dev/null 2>&1
 206         ret=$?
 207         [ ${ret} -eq 0 ] || bad_msg "Failed to mount /sys!"
 208 }
 209
 210 findnfsmount() {
 211         if [ "${IP}" != '' ] || busybox udhcpc -n -T 15 -q
 212         then
 213                 [ -e /rootpath ] && NFSROOT=`cat /rootpath`
 214
 215                 if [ "${NFSROOT}" = '' ]
 216                 then
 217                         # Obtain NFSIP
 218                         OPTIONS=`busybox dmesg | grep rootserver | sed -e "s/,/ /g"`
 219                         for OPTION in $OPTIONS
 220                         do
 221                                 if [ `echo $OPTION | sed -e "s/=/ /g" | cut -d " " -f 1` = 'rootserver' ]
 222                                 then
 223                                         NFSIP=`echo $OPTION | sed -e "s/=/ /g" | cut -d " " -f 2`
 224                                 fi
 225                         done
 226
 227                         # Obtain NFSPATH
 228                         OPTIONS=`busybox dmesg | grep rootpath | sed -e "s/,/ /g"`
 229                         for OPTION in $OPTIONS
 230                         do
 231                                 if [ `echo $OPTION | sed -e "s/=/ /g" | cut -d " " -f 1` = 'rootpath' ]
 232                                 then
 233                                         NFSPATH=`echo $OPTION | sed -e "s/=/ /g" | cut -d " " -f 2`
 234                                 fi
 235                         done
 236
 237                         # Setup NFSROOT
 238                         if [ "${NFSIP}" != '' ] && [ "$NFSPATH" != '' ]
 239                         then
 240                                 NFSROOT="${NFSIP}:${NFSPATH}"
 241                         else
 242                                 bad_msg "The DHCP Server did not send a valid root-path."
 243                                 bad_msg "Please check your DHCP setup, or provide a nfsroot=<...> parameter."
 244                         fi
 245                 fi
 246
 247                 if [ "${NFSROOT}" != '' ]
 248                 then
 249                         NFSOPTIONS=${NFSROOT#*,}
 250                         NFSROOT=${NFSROOT%%,*}
 251                         if [ "${NFSOPTIONS}" = "${NFSROOT}" ]
 252                         then
 253                                 NFSOPTIONS=$DEFAULT_NFSOPTIONS
 254                         else
 255                                 NFSOPTIONS="${DEFAULT_NFSOPTIONS},${NFSOPTIONS}"
 256                         fi
 257
 258                         if [ "${CDROOT}" != '0' ]
 259                         then
 260                                 good_msg "Attempting to mount NFS CD image on ${NFSROOT} with options ${NFSOPTIONS}"
 261                                 mount -t nfs -o ${NFSOPTIONS} ${NFSROOT} ${CDROOT_PATH}
 262                                 if [ "$?" = '0' ]
 263                                 then
 264                                         REAL_ROOT="/dev/nfs"
 265                                 else
 266                                         bad_msg "NFS Mounting failed. Is the path corrent ?"
 267                                 fi
 268                         else
 269                                 good_msg "Attempting to mount NFS root on ${NFSROOT} with options ${NFSOPTIONS}"
 270                                 mount -t nfs -o ${NFSOPTIONS} ${NFSROOT} ${NEW_ROOT}
 271                                 if [ "$?" = '0' ]
 272                                 then
 273                                         REAL_ROOT="/dev/nfs"
 274                                 else
 275                                         bad_msg "NFS Mounting failed. Is the path correct ?"
 276                                 fi
 277                                 # FIXME: Need to start portmap and the other rpc daemons in
 278                                 # order to remount rw.
 279                         fi
 280
 281                 fi
 282         fi
 283 }
 284
 285 check_loop() {
 286         if [ "${LOOP}" = '' -o ! -e "${CDROOT_PATH}/${LOOP}" ]
 287         then
 288
 289                 bad_msg "Invalid loop location: ${LOOP}"
 290                 bad_msg 'Please export LOOP with a valid location, or reboot and pass a proper loop=...'
 291                 bad_msg 'kernel command line!'
 292
 293                 run_shell
 294         fi
 295 }
 296
 297 run_shell() {
 298         /bin/ash
 299 }
 300
 301 mount_devfs () {
 302         # Use devtmpfs if enabled in kernel,
 303         # else tmpfs. Always run mdev just in case
 304         devfs=tmpfs
 305         if grep -qs devtmpfs /proc/filesystems ; then
 306                 devfs=devtmpfs
 307         fi
 308
 309         # Options copied from /etc/init.d/udev-mount, should probably be kept in sync
 310         if awk 'BEGIN{m=0;} /devtmpfs/{if($3 == "devtmpfs") {m=1;} } END { exit m;}' /proc/mounts; then
 311                 mount -t $devfs -o "exec,nosuid,mode=0755,size=10M" udev /dev \
 312                         || bad_msg "Failed to mount /dev as ${devfs}"
 313         fi
 314
 315         # http://git.busybox.net/busybox/plain/docs/mdev.txt
 316         if awk 'BEGIN{m=0;} /devpts/{if($3 == "devpts") {m=1;} } END { exit m;}' /proc/mounts; then
 317                 mkdir -m 0755 /dev/pts
 318                 mount -t devpts -o gid=5,mode=0620 devpts /dev/pts  || bad_msg "Failed to mount /dev/pts"
 319         fi
 320 }
 321
 322 test_success() {
 323         retcode=$?
 324         # If last command failed send error message and fall back to a shell
 325         if [ "$retcode" != '0' ]
 326         then
 327                 error_string=$1
 328                 error_string="${error_string:-run command}"
 329                 bad_msg 'Failed to $1; failing back to the shell...'
 330                 run_shell
 331         fi
 332 }
 333
 334
 335 # msg functions arguments
 336 # $1 string
 337 # $2 hide flag
 338
 339 good_msg() {
 340         msg_string=$1
 341         msg_string="${msg_string:-...}"
 342         [ "$2" != 1 ] && echo -e "${GOOD}>>${NORMAL}${BOLD} ${msg_string} ${NORMAL}"
 343 }
 344
 345 bad_msg() {
 346         msg_string=$1
 347         msg_string="${msg_string:-...}"
 348         if [ "$2" != 1 ]
 349         then
 350                 splash 'verbose' > /dev/null &
 351                 echo -e "${BAD}!!${NORMAL}${BOLD} ${msg_string} ${NORMAL}"
 352         fi
 353 }
 354
 355 warn_msg() {
 356         msg_string=$1
 357         msg_string="${msg_string:-...}"
 358         [ "$2" != 1 ] && echo -e "${WARN}**${NORMAL}${BOLD} ${msg_string} ${NORMAL}"
 359 }
 360
 361 crypt_filter() {
 362         if [ "${CRYPT_SILENT}" = '1' ]
 363         then
 364                 eval $1 >/dev/null 2>/dev/null
 365         else
 366                 splash 'verbose' > /dev/null &
 367                 eval $1
 368                 res=$?
 369                 if [ ${res} -eq 0 ]
 370                 then
 371                         splash set_msg 'Disk unlocked.'
 372                 fi
 373                 return ${res}
 374         fi
 375 }
 376
 377 prompt_user(){
 378         # $1 = variable whose value is the path (examples: "REAL_ROOT",
 379         #      "LUKS_KEYDEV")
 380         # $2 = label
 381         # $3 = optional explanations for failure
 382
 383         eval local oldvalue='$'${1}
 384
 385         [ \( $# != 2 \) -a \( $# != 3 \) ] && \
 386                 bad_msg "Bad invocation of function prompt_user, please file a bug \
 387                 report with this message" && exit 1
 388         [ -n "${3}" ] && local explnt=" or : ${3}" || local explnt="."
 389
 390         bad_msg "Could not find the ${2} in ${oldvalue}${explnt}"
 391         echo '   Please specify another value or: press Enter for the same, type "shell" for a shell, or "q" to skip...'
 392         echo -n "${2}(${oldvalue}) :: "
 393         read ${1}
 394         case `eval echo '$'${1}` in
 395                 'q')
 396                         eval ${1}'='${oldvalue}
 397                         warn_msg "Skipping step, this will likely cause a boot failure."
 398                         break
 399                         ;;
 400                 'shell')
 401                         eval ${1}'='${oldvalue}
 402                         echo "To leave and try again just press <Ctrl>+D"
 403                         run_shell
 404                         ;;
 405                 '')
 406                         eval ${1}'='${oldvalue}
 407                         ;;
 408         esac
 409 }
 410
 411 setup_slowusb() {
 412         # This function removes unset DO_slowusb if there is no usb-storage attached.
 413         # If noslowusb is set, skip this function
 414         [ "${DO_slowusb}" ] || return
 415
 416         # Unset DO_slowusb, so we can set it again if usb-storage has something attached
 417         unset DO_slowusb
 418
 419         local usb_storage_dir="/sys/bus/usb/drivers/usb-storage"
 420         if [ ! -d "${usb_storage_dir}" ]
 421         then
 422                 # no automated slowusb required. no usb-storage devices attached.
 423                 return
 424         fi
 425         for x in "${usb_storage_dir}"/*
 426         do
 427                 [ -d "${x}" ]  && [ "${x}" != "${usb_storage_dir}/module" ] \
 428                         && { DO_slowusb="1" ; break ; }
 429         done
 430 }
 431
 432 cmdline_hwopts() {
 433         # Scan CMDLINE for any "doscsi" or "noscsi"-type arguments
 434         local FOUND
 435         local TMP_HWOPTS
 436
 437         for x in $HWOPTS
 438         do
 439                 for y in $CMDLINE
 440                 do
 441                         if [ "${y}" = "do${x}" ]
 442                         then
 443                                 MY_HWOPTS="${MY_HWOPTS} $x"
 444                         elif [ "${y}" = "no${x}" ]
 445                         then
 446                                 MY_HWOPTS="`echo ${MY_HWOPTS} | sed -e \"s/${x}//g\" -`"
 447                         fi
 448                         if [ "$(echo ${y} | cut -b -7)" = "keymap=" ]
 449                         then
 450                                 MY_HWOPTS="${MY_HWOPTS} keymap"
 451                         fi
 452                 done
 453         done
 454
 455         # Shouldnt need to sort this as the following loop should figure out the
 456         # duplicates and strip them out
 457         #MY_HWOPTS=`echo ${MY_HWOPTS}|  sort`
 458
 459         for x in ${MY_HWOPTS}
 460         do
 461                 FOUND=0
 462                 for y in ${TMP_HWOPTS}
 463                 do
 464                         if [ "${y}" = "${x}" ]
 465                         then
 466                                 continue 2
 467                         fi
 468                 done
 469                 TMP_HWOPTS="${TMP_HWOPTS} ${x}"
 470                 eval DO_`echo ${x} | sed 's/-//'`=1
 471         done
 472
 473         MY_HWOPTS=${TMP_HWOPTS}
 474 }
 475
 476 load_modules() {
 477         # Load modules listed in MY_HWOPTS if /lib/modules exists for the running
 478         # kernel version
 479         if [ -d "/lib/modules/${KV}" ]
 480         then
 481                 good_msg 'Loading modules'
 482                 # Load appropriate kernel modules
 483                 for modules in $MY_HWOPTS
 484                 do
 485                         modules_scan $modules
 486                 done
 487         else
 488                 good_msg 'Skipping module load; no modules in the ramdisk!'
 489         fi
 490 }
 491
 492 setup_keymap() {
 493         if [ "${DO_keymap}" ]
 494         then
 495                 if [ ! -e /dev/vc/0 -a ! -e /dev/tty0 ]
 496                 then
 497                         DEVBIND=1
 498                         mount -o bind ${NEW_ROOT}/dev /dev
 499                 fi
 500                 [ ! -e /dev/tty0 ] && ln -s /dev/tty1 /dev/tty0
 501
 502                 [ -f /lib/keymaps/keymapList ] && chooseKeymap
 503
 504                 [ "${DEVBIND}" = '1' ] && umount /dev
 505
 506                 if [ -e /etc/sysconfig/keyboard -a "${CDROOT}" = '1' ]
 507                 then
 508                         mkdir -p ${NEW_ROOT}/etc/sysconfig/
 509                         cp /etc/sysconfig/keyboard ${NEW_ROOT}/etc/sysconfig/keyboard
 510                 fi
 511         fi
 512 }
 513
 514 chooseKeymap() {
 515         good_msg "Loading keymaps"
 516         if [ -z "${keymap}" ]
 517         then
 518                 splash 'verbose' > /dev/null &
 519                 cat /lib/keymaps/keymapList
 520                 read -t 10 -p '<< Load keymap (Enter for default): ' keymap
 521                 case ${keymap} in
 522                         1|azerty) keymap=azerty ;;
 523                         2|be) keymap=be ;;
 524                         3|bg) keymap=bg ;;
 525                         4|br-a) keymap=br-a ;;
 526                         5|br-l) keymap=br-l ;;
 527                         6|by) keymap=by ;;
 528                         7|cf) keymap=cf ;;
 529                         8|croat) keymap=croat ;;
 530                         9|cz) keymap=cz ;;
 531                         10|de) keymap=de ;;
 532                         11|dk) keymap=dk ;;
 533                         12|dvorak) keymap=dvorak ;;
 534                         13|es) keymap=es ;;
 535                         14|et) keymap=et ;;
 536                         15|fi) keymap=fi ;;
 537                         16|fr) keymap=fr ;;
 538                         17|gr) keymap=gr ;;
 539                         18|hu) keymap=hu ;;
 540                         19|il) keymap=il ;;
 541                         20|is) keymap=is ;;
 542                         21|it) keymap=it ;;
 543                         22|jp) keymap=jp ;;
 544                         23|la) keymap=la ;;
 545                         24|lt) keymap=lt ;;
 546                         25|mk) keymap=mk ;;
 547                         26|nl) keymap=nl ;;
 548                         27|no) keymap=no ;;
 549                         28|pl) keymap=pl ;;
 550                         29|pt) keymap=pt ;;
 551                         30|ro) keymap=ro ;;
 552                         31|ru) keymap=ru ;;
 553                         32|se) keymap=se ;;
 554                         33|sg) keymap=sg ;;
 555                         34|sk-y) keymap=sk-y ;;
 556                         35|sk-z) keymap=sk-z ;;
 557                         36|slovene) keymap=slovene ;;
 558                         37|trf) keymap=trf ;;
 559                         38|trq) keymap=trq ;;
 560                         39|ua) keymap=ua ;;
 561                         40|uk) keymap=uk ;;
 562                         41|us) keymap=us ;;
 563                         42|wangbe) keymap=wangbe ;;
 564                         43|sf|ch*) keymap=sf ;;
 565                 esac
 566         fi
 567         if [ -e /lib/keymaps/${keymap}.map ]
 568         then
 569                 good_msg "Loading the ''${keymap}'' keymap"
 570                 loadkmap < /lib/keymaps/${keymap}.map
 571 #               xkeymap=${keymap}
 572 #               echo ${keymap} | egrep -e "[0-9]+" >/dev/null 2>&1
 573 #               if [ $? -eq 0 ]
 574 #               then
 575 #                       xkeymap=`tail -n 8 /lib/keymaps/keymapList | grep ${keymap} | sed -r "s/.*\s+${keymap}\s+([a-z-]+).*/\1/g" | egrep -v 1`
 576 #               fi
 577                 mkdir -p /etc/sysconfig
 578 #               echo "XKEYBOARD=${xkeymap}" > /etc/sysconfig/keyboard
 579                 echo "XKEYBOARD=${keymap}" > /etc/sysconfig/keyboard
 580                 splash set_msg "Set keymap to ${keymap}"
 581         elif [ -z "${keymap}" ]
 582         then
 583                 echo
 584                 good_msg "Keeping default keymap"
 585                 splash set_msg "Keeping default keymap"
 586         else
 587                 bad_msg "Sorry, but keymap ''${keymap}'' is invalid!"
 588                 unset keymap
 589                 chooseKeymap
 590         fi
 591 }
 592
 593 startVolumes() {
 594         #good_msg 'Checking if volumes need to be started...'
 595
 596         # Here, we check for /dev/device-mapper, and if it exists, we setup a
 597         # a symlink, which should hopefully fix bug #142775 and bug #147015
 598         if [ -e /dev/device-mapper ] && [ ! -e /dev/mapper/control ]
 599         then
 600                 mkdir -p /dev/mapper
 601                 ln -sf /dev/device-mapper /dev/mapper/control
 602         fi
 603
 604         if [ "${USE_MDADM}" = '1' ]
 605         then
 606                 if [ -e '/sbin/mdadm' ]
 607                 then
 608                         /sbin/mdadm --assemble --scan
 609                 else
 610                         bad_msg "mdadm not found: skipping mdadm raid assembly!"
 611                 fi
 612         fi
 613
 614         if [ "${USE_DMRAID_NORMAL}" = '1' ]
 615         then
 616                 if [ -e '/sbin/dmraid' ]
 617                 then
 618                         good_msg "Activating Device-Mapper RAID(s)"
 619                         if [ '${DMRAID_OPTS}' = '' ]
 620                         then
 621                                 /sbin/dmraid -ay
 622                         else
 623                                 /sbin/dmraid -ay ${DMRAID_OPTS}
 624                         fi
 625                 fi
 626         fi
 627
 628         if [ "${USE_LVM_NORMAL}" = '1' ]
 629         then
 630                 if [ -e '/bin/lvm' ]
 631                 then
 632                         for dev in ${RAID_DEVICES}
 633                         do
 634                                 setup_md_device "${dev}"
 635                         done
 636
 637                         # This is needed for /bin/lvm to accept the following logic
 638                         lvm_commands="#! /bin/lvm"
 639
 640                         # If there is a cahe, update it. Unbreak at least dmcrypt
 641                         [ -d /etc/lvm/cache ] && lvm_commands="${lvm_commands} \nvgscan"
 642
 643                         # To activate volumegroups on all devices in the cache
 644                         lvm_commands="${lvm_commands} \nvgchange -ay --sysinit"
 645
 646                         # To create symlinks so users can use real_root=/dev/vg/root
 647                         # This needs to run after vgchange, using vgchange --mknodes is too
 648                         # early.
 649                         lvm_commands="${lvm_commands} \nvgmknodes --ignorelockingfailure"
 650
 651                         # And finally execute it all (/proc/... needed if lvm is compiled without readline)
 652                         good_msg "Scanning for and activating Volume Groups"
 653                         printf "%b\n" "${lvm_commands}" | /bin/lvm /proc/self/fd/0
 654                 else
 655                         bad_msg "vgscan or vgchange not found: skipping LVM volume group activation!"
 656                 fi
 657         fi
 658
 659         if [ "${USE_ZFS}" = '1' ]
 660         then
 661                 if [ -z "${ZFS_POOL}" ]
 662                 then
 663                         good_msg "Importing ZFS pools"
 664
 665                         /sbin/zpool import -N -a "${ZPOOL_FORCE}"
 666
 667                         if [ "$?" = '0' ]
 668                         then
 669                                 good_msg "Importing ZFS pools succeeded"
 670                         else
 671                                 bad_msg "Imported ZFS pools failed"
 672                         fi
 673                 else
 674
 675                         if [ "$(zpool list -H -o name ${ZFS_POOL} 2>&1)" = "$ZFS_POOL" ]
 676                         then
 677                                 good_msg "ZFS pool ${ZFS_POOL} already imported."
 678
 679                                 if [ -n "${CRYPT_ROOT}" -o -n "${CRYPT_SWAP}" ]
 680                                 then
 681                                         good_msg "LUKS detected. Reimporting ${ZFS_POOL}"
 682                                         /sbin/zpool export -f "${ZFS_POOL}"
 683                                         /sbin/zpool import -N "${ZPOOL_FORCE}" "${ZFS_POOL}"
 684                                 fi
 685                         else
 686                                 good_msg "Importing ZFS pool ${ZFS_POOL}"
 687
 688                                 /sbin/zpool import -N "${ZPOOL_FORCE}" "${ZFS_POOL}"
 689
 690                                 if [ "$?" = '0' ]
 691                                 then
 692                                         good_msg "Importing ${ZFS_POOL} succeeded"
 693                                 else
 694                                         bad_msg "Importing ${ZFS_POOL} failed"
 695                                 fi
 696                         fi
 697                 fi
 698         fi
 699 }
 700
 701 startiscsi() {
 702
 703         if [ ! -n "${ISCSI_NOIBFT}" ]
 704         then
 705                 good_msg "Activating iSCSI via iBFT"
 706                 iscsistart -b
 707         fi
 708
 709         if [ -n "${ISCSI_INITIATORNAME}" ] && [ -n "${ISCSI_TARGET}" ] && [ -n "${ISCSI_ADDRESS}" ]
 710         then
 711                 good_msg "Activating iSCSI via cmdline"
 712
 713                 if [ "${ISCSI_TGPT}" ]
 714                 then
 715                         ADDITIONAL="${ADDITIONAL} -g ${ISCSI_TGPT}"
 716                 else
 717                         ADDITIONAL="${ADDITIONAL} -g 1"
 718                 fi
 719
 720                 if [ "${ISCSI_PORT}" ]
 721                 then
 722                         ADDITIONAL="${ADDITIONAL} -p ${ISCSI_PORT}"
 723                 fi
 724
 725                 if [ "${ISCSI_USERNAME}" ]
 726                 then
 727                         ADDITIONAL="${ADDITIONAL} -u ${ISCSI_USERNAME}"
 728                 fi
 729
 730                 if [ "${ISCSI_PASSWORD}" ]
 731                 then
 732                         ADDITIONAL="${ADDITIONAL} -w ${ISCSI_PASSWORD}"
 733                 fi
 734
 735                 if [ "${ISCSI_USERNAME_IN}" ]
 736                 then
 737                         ADDITIONAL="${ADDITIONAL} -U ${ISCSI_USERNAME_IN}"
 738                 fi
 739
 740                 if [ "${ISCSI_PASSWORD_IN}" ]
 741                 then
 742                         ADDITIONAL="${ADDITIONAL} -W ${ISCSI_PASSWORD_IN}"
 743                 fi
 744
 745                 if [ "${ISCSI_DEBUG}" ]
 746                 then
 747                         ADDITIONAL="${ADDITIONAL} -d ${ISCSI_DEBUG}"
 748                 fi
 749
 750                 iscsistart -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -a "${ISCSI_ADDRESS}" ${ADDITIONAL}
 751
 752                 # let iscsid settle - otherwise mounting the iSCSI-disk will fail (very rarely, though)
 753                 sleep 1
 754         fi
 755 }
 756
 757
 758 # Open a LUKS device
 759 # It is either the root or a swap, other devices are supported in the scripts provided with sys-fs/cryptsetup-luks
 760 # $1 - root/swap
 761 openLUKS() {
 762         # please use 'tr' and this line, or remove it
 763         # eval local TYPE=`uppercase $1`
 764
 765         case $1 in
 766                 root)
 767                         local TYPE=ROOT
 768                         ;;
 769                 swap)
 770                         local TYPE=SWAP
 771                         ;;
 772         esac
 773
 774         eval local LUKS_DEVICE='"${CRYPT_'${TYPE}'}"' LUKS_NAME="$1" LUKS_KEY='"${CRYPT_'${TYPE}'_KEY}"' LUKS_KEYDEV='"${CRYPT_'${TYPE}'_KEYDEV}"' LUKS_TRIM='"${CRYPT_'${TYPE}'_TRIM}"'
 775         local DEV_ERROR=0 KEY_ERROR=0 KEYDEV_ERROR=0
 776         local mntkey="/mnt/key/" cryptsetup_options=''
 777
 778         [ ! -e /sbin/cryptsetup ] && bad_msg "The ramdisk does not support LUKS" && exit 1
 779         while [ 1 ]
 780         do
 781                 local gpg_cmd=""
 782                 # if crypt_silent=1 and some error occurs, enter shell quietly
 783                 if [ \( ${CRYPT_SILENT} -eq 1 \) -a \( \( \( ${DEV_ERROR} -eq 1 \) -o \( ${KEY_ERROR} -eq 1 \) \) -o \( ${KEYDEV_ERROR} -eq 1 \) \) ]
 784                 then
 785                         run_shell
 786                 elif [ ${DEV_ERROR} -eq 1 ]
 787                 then
 788                         prompt_user "LUKS_DEVICE" "${LUKS_NAME}"
 789                         DEV_ERROR=0
 790                 elif [ ${KEY_ERROR} -eq 1 ]
 791                 then
 792                         prompt_user "LUKS_KEY" "${LUKS_NAME} key"
 793                         KEY_ERROR=0
 794                 elif [ ${KEYDEV_ERROR} -eq 1 ]
 795                 then
 796                         prompt_user "LUKS_KEYDEV" "${LUKS_NAME} key device"
 797                         KEYDEV_ERROR=0
 798                 else
 799                         case "${LUKS_DEVICE}" in
 800                                 UUID\=*|LABEL\=*)
 801                                         local REAL_LUKS=""
 802                                         local retval=1
 803
 804                                         if [ "${retval}" -ne 0 ]; then
 805                                                 REAL_LUKS=`findfs "${LUKS_DEVICE}" 2>/dev/null`
 806                                                 retval=$?
 807                                         fi
 808
 809                                         if [ "$retval" -ne 0 ]; then
 810                                                 REAL_LUKS=`busybox findfs "${LUKS_DEVICE}" 2>/dev/null`
 811                                                 retval=$?
 812                                         fi
 813
 814                                         if [ "${retval}" -ne 0 ]; then
 815                                                 REAL_LUKS=`blkid -o device -l -t "${LUKS_DEVICE}"`
 816                                                 retval=$?
 817                                         fi
 818
 819                                         if [ "${retval}" -eq 0 ] && [ -n "${REAL_LUKS}" ]; then
 820                                                 good_msg "Detected device ${REAL_LUKS}"
 821                                                 LUKS_DEVICE="${REAL_LUKS}"
 822                                         fi
 823                                 ;;
 824                         esac
 825
 826                         setup_md_device ${LUKS_DEVICE}
 827                         cryptsetup isLuks ${LUKS_DEVICE}
 828                         if [ $? -ne 0 ]
 829                         then
 830                                 bad_msg "The LUKS device ${LUKS_DEVICE} does not contain a LUKS header" ${CRYPT_SILENT}
 831                                 DEV_ERROR=1
 832                                 continue
 833                         else
 834                                 # Handle keys
 835                                 if [ "x${LUKS_TRIM}" = "xyes" ]
 836                                 then
 837                                         good_msg "Enabling TRIM support for ${LUKS_NAME}." ${CRYPT_SILENT}
 838                                         cryptsetup_options="${cryptsetup_options} --allow-discards"
 839                                 fi
 840
 841                                 if [ -n "${LUKS_KEY}" ]
 842                                 then
 843                                         if [ ! -e "${mntkey}${LUKS_KEY}" ]
 844                                         then
 845                                                 if [ -b "${LUKS_KEYDEV}" ]
 846                                                 then good_msg "Using key device ${LUKS_KEYDEV}." ${CRYPT_SILENT}
 847                                                 else
 848                                                         good_msg "Please insert removable device ${LUKS_KEYDEV} for ${LUKS_NAME}" ${CRYPT_SILENT}
 849                                                         # abort after 10 secs
 850                                                         local count=10
 851                                                         while [ ${count} -gt 0 ]
 852                                                         do
 853                                                                 count=$((count-1))
 854                                                                 sleep 1
 855                                                                 if [ -b "${LUKS_KEYDEV}" ]
 856                                                                 then
 857                                                                         good_msg "Removable device ${LUKS_KEYDEV} detected." ${CRYPT_SILENT}
 858                                                                         break
 859                                                                 fi
 860                                                         done
 861                                                         if [ ! -b "${LUKS_KEYDEV}" ]
 862                                                         then
 863                                                                 eval CRYPT_${TYPE}_KEY=${LUKS_KEY}
 864                                                                 bootstrapKey ${TYPE}
 865                                                                 eval LUKS_KEYDEV='"${CRYPT_'${TYPE}'_KEYDEV}"'
 866                                                                 if [ ! -b "${LUKS_KEYDEV}" ]; then
 867                                                                         KEYDEV_ERROR=1
 868                                                                         bad_msg "Removable device ${LUKS_KEYDEV} not found." ${CRYPT_SILENT}
 869                                                                         continue
 870                                                                 fi
 871                                                                 # continue otherwise will mount keydev which is mounted by bootstrap
 872                                                                 continue
 873                                                         fi
 874                                                 fi
 875                                                 # At this point a device was recognized, now let's see if the key is there
 876                                                 [ ! -d "$mntkey" ] && mkdir -p ${mntkey} 2>/dev/null >/dev/null
 877
 878                                                 mount -n -o ro ${LUKS_KEYDEV} ${mntkey} >/dev/null 2>/dev/null
 879                                                 if [ "$?" != '0' ]
 880                                                 then
 881                                                         KEYDEV_ERROR=1
 882                                                         bad_msg "Mounting of device ${LUKS_KEYDEV} failed." ${CRYPT_SILENT}
 883                                                         continue
 884                                                 else
 885                                                         good_msg "Removable device ${LUKS_KEYDEV} mounted." ${CRYPT_SILENT}
 886                                                         sleep 2
 887                                                         # keyfile exists?
 888                                                         if [ ! -e "${mntkey}${LUKS_KEY}" ]; then
 889                                                                 umount -n ${mntkey} 2>/dev/null >/dev/null
 890                                                                 KEY_ERROR=1
 891                                                                 KEYDEV_ERROR=1
 892                                                                 bad_msg "Key {LUKS_KEY} on device ${LUKS_KEYDEV} not found." ${CRYPT_SILENT}
 893                                                                 continue
 894                                                         fi
 895                                                 fi
 896                                         fi
 897                                         # At this point a candidate key exists (either mounted before or not)
 898                                         good_msg "${LUKS_KEY} on device ${LUKS_KEYDEV} found" ${CRYPT_SILENT}
 899                                         if [ "$(echo ${LUKS_KEY} | grep -o '.gpg$')" = ".gpg" ] && [ -e /sbin/gpg ] ; then
 900                                                 [ -e /dev/tty ] && mv /dev/tty /dev/tty.org
 901                                                 mknod /dev/tty c 5 1
 902                                                 cryptsetup_options="-d -"
 903                                                 gpg_cmd="/sbin/gpg --logger-file /dev/null --quiet --decrypt ${mntkey}${LUKS_KEY} |"
 904                                         else
 905                                                 cryptsetup_options="-d ${mntkey}${LUKS_KEY}"
 906                                         fi
 907                                 fi
 908                                 # At this point, keyfile or not, we're ready!
 909                                 crypt_filter "${gpg_cmd}cryptsetup ${cryptsetup_options} luksOpen ${LUKS_DEVICE} ${LUKS_NAME}"
 910                                 crypt_filter_ret=$?
 911
 912                                 [ -e /dev/tty.org ] \
 913                                         && rm -f /dev/tty \
 914                                         && mv /dev/tty.org /dev/tty
 915
 916                                 if [ ${crypt_filter_ret} -eq 0 ]
 917                                 then
 918                                         good_msg "LUKS device ${LUKS_DEVICE} opened" ${CRYPT_SILENT}
 919                                         break
 920                                 else
 921                                         bad_msg "Failed to open LUKS device ${LUKS_DEVICE}" ${CRYPT_SILENT}
 922                                         DEV_ERROR=1
 923                                         KEY_ERROR=1
 924                                         KEYDEV_ERROR=1
 925                                 fi
 926                         fi
 927                 fi
 928         done
 929         umount ${mntkey} 2>/dev/null >/dev/null
 930         rmdir -p ${mntkey} 2>/dev/null >/dev/null
 931 }
 932
 933 startLUKS() {
 934
 935         # if key is set but key device isn't, find it
 936
 937         [ -n "${CRYPT_ROOT_KEY}" ] && [ -z "${CRYPT_ROOT_KEYDEV}" ] \
 938                 && sleep 6 && bootstrapKey "ROOT"
 939
 940         if [ -n "${CRYPT_ROOT}" ]; then
 941                 openLUKS "root"
 942                 if [ -n "${REAL_ROOT}" ]
 943                 then
 944                         # Rescan volumes
 945                         startVolumes
 946                 else
 947                         REAL_ROOT="/dev/mapper/root"
 948                 fi
 949         fi
 950
 951         # same for swap, but no need to sleep if root was unencrypted
 952         [ -n "${CRYPT_SWAP_KEY}" ] && [ -z "${CRYPT_SWAP_KEYDEV}" ] \
 953                 && { [ -z "${CRYPT_ROOT}" ] && sleep 6; bootstrapKey "SWAP"; }
 954
 955         if [ -n "${CRYPT_SWAP}" ]; then
 956                 openLUKS "swap"
 957                 if [ -z "${REAL_RESUME}" ]
 958                 then
 959                         # Resume from swap as default
 960                         REAL_RESUME="/dev/mapper/swap"
 961                 fi
 962         fi
 963 }
 964
 965 sdelay() {
 966         # Sleep a specific number of seconds if SDELAY is set
 967         if [ "${SDELAY}" ]
 968         then
 969                 good_msg "Waiting ${SDELAY} seconds..."
 970                 sleep ${SDELAY}
 971         elif [ "${CDROOT}" = '1' ]
 972         then
 973                 # many CD/DVD drives require extra sleep, especially when
 974                 # connected via USB. Many people reported that 1 second sleep
 975                 # is not enough on their notebooks, that's why sleep 3, when booting
 976                 # off a livecd is a better default.
 977                 sleep 3
 978         else
 979                 good_msg 'Hint: Use parameter scandelay[=seconds] if you need waiting here'
 980         fi
 981 }
 982
 983 quiet_kmsg() {
 984         # if QUIET is set make the kernel less chatty
 985         [ -n "$QUIET" ] && echo '0' > /proc/sys/kernel/printk
 986 }
 987
 988 verbose_kmsg() {
 989         # if QUIET is set make the kernel less chatty
 990         [ -n "$QUIET" ] && echo '6' > /proc/sys/kernel/printk
 991 }
 992
 993
 994 cdupdate() {
 995         if [ "${CDROOT}" = '1' ]
 996         then
 997                 if [ -x /${CDROOT_PATH}/cdupdate.sh ]
 998                 then
 999                         good_msg "Running cdupdate.sh"
1000                         ${CDROOT_PATH}/cdupdate.sh
1001                         if [ "$?" != '0' ]
1002                         then
1003                                 bad_msg "Executing cdupdate.sh failed!"
1004                                 run_shell
1005                         fi
1006                 else
1007                         good_msg 'No cdupdate.sh script found, skipping...'
1008                 fi
1009         fi
1010 }
1011
1012 setup_btrfsctl() {
1013         # start BTRFS volume detection, if available
1014         [ -x /sbin/btrfsctl ] && /sbin/btrfsctl -a
1015 }
1016
1017 setup_md_device() {
1018         local device
1019
1020         [ -z "$1" ] && device="${REAL_ROOT}" || device="$1"
1021         [ -z "${device}" ] && return # LiveCD
1022
1023         if [ `echo ${device}|sed -e 's#\(luks:\)\?\(/dev/md\)[[:digit:]]\+#\2#'` = "/dev/md" ]
1024         then
1025                 good_msg 'Detected real_root as a md device. Setting up the device node...'
1026                 MD_NUMBER=`echo ${device}|sed -e 's#\(luks:\)\?/dev/md\([[:digit:]]\+\)#\2#'`
1027                 if [ ! -e /dev/md${MD_NUMBER} ]
1028                 then
1029                         mknod /dev/md${MD_NUMBER} b 9 ${MD_NUMBER} >/dev/null 2>&1
1030                         [ $? -ne 0 ] && bad_msg "Creation of /dev/md${MD_NUMBER} failed..."
1031                 fi
1032                 mdstart ${MDPART} /dev/md${MD_NUMBER}
1033         fi
1034 }
1035
1036 do_rundebugshell() {
1037         good_msg 'Type "exit" to continue with normal bootup.'
1038         [ -x /bin/sh ] && /bin/sh || /bin/ash
1039 }
1040
1041 rundebugshell() {
1042         if [ -n "$DEBUG" ]
1043         then
1044                 good_msg 'Starting debug shell as requested by "debug" option.'
1045                 do_rundebugshell
1046         fi
1047 }
1048
1049 do_resume() {
1050         if [ -d /proc/suspend2 -o -d /sys/power/suspend2 -o -d /sys/power/tuxonice ]; then
1051                 tuxonice_resume
1052         else
1053                 swsusp_resume
1054         fi
1055 }
1056
1057 swsusp_resume() {
1058         # determine swap resume partition
1059         local device=$(ls -lL "${REAL_RESUME}" | sed 's/\  */ /g' | cut -d \  -f 5-6 | sed 's/,\ */:/')
1060         [ -f /sys/power/resume ] && echo "${device}" > /sys/power/resume
1061 }
1062
1063 tuxonice_resume() {
1064         local splash_theme
1065         if grep "splash=" /proc/cmdline > /dev/null 2>&1; then
1066                 splash_theme=$(cat /proc/cmdline | sed 's/.*splash=/splash=/' | sed 's/ .*//' | sed 's/.*theme://' | sed 's/,.*//')
1067         fi
1068
1069         local tuxonice_userui_program="/sys/power/tuxonice/user_interface/program"
1070         local tuxonice_do_resume="/sys/power/tuxonice/do_resume"
1071         local tuxonice_resumedev="/sys/power/tuxonice/resume"
1072         local tuxonice_replace_swsusp="/sys/power/tuxonice/replace_swsusp"
1073
1074         #
1075         # Backward compatibility
1076         #
1077         if [ -e /sys/power/suspend2 ]; then
1078                 tuxonice_userui_program="/sys/power/suspend2/user_interface/program"
1079                 tuxonice_do_resume="/sys/power/suspend2/do_resume"
1080                 tuxonice_resumedev="/sys/power/suspend2/resume"
1081                 tuxonice_replace_swsusp="/sys/power/suspend2/replace_swsusp"
1082         elif [ -e /proc/suspend2 ]; then
1083                 tuxonice_userui_program="/proc/suspend2/userui_program"
1084                 tuxonice_do_resume="/proc/suspend2/do_resume"
1085                 tuxonice_resumedev="/proc/suspend2/resume"
1086                 tuxonice_replace_swsusp="/proc/suspend2/replace_swsusp"
1087         fi
1088
1089         # if 'use_swsusp' is given, use swsusp instead
1090         if grep "use_swsusp" /proc/cmdline > /dev/null 2>&1; then
1091                 echo 0 > ${tuxonice_replace_swsusp}
1092                 swsusp_resume
1093                 return
1094         fi
1095
1096         modules_scan tuxonice
1097
1098         # we both configure tuxonice and activate resuming,
1099         # however the kernel will resume only if an image is found
1100
1101         if ! grep suspend_noui /proc/cmdline > /dev/null 2>&1; then
1102                 which suspend2ui_text > /dev/null 2>&1 && which suspend2ui_text > "${tuxonice_userui_program}"
1103                 which tuxoniceui_text > /dev/null 2>&1 && which tuxoniceui_text > "${tuxonice_userui_program}"
1104
1105                 if [ -n "${splash_theme}" ]; then
1106                         ln -s /etc/splash/${splash_theme} /etc/splash/suspend2
1107                         ln -s /etc/splash/${splash_theme} /etc/splash/tuxonice
1108
1109                         which suspend2ui_fbsplash > /dev/null 2>&1 && which suspend2ui_fbsplash > "${tuxonice_userui_program}"
1110                         which tuxoniceui_fbsplash > /dev/null 2>&1 && which tuxoniceui_fbsplash > "${tuxonice_userui_program}"
1111                 fi
1112
1113         fi
1114         echo "${REAL_RESUME}" > "${tuxonice_resumedev}"
1115         echo > "${tuxonice_do_resume}"
1116 }
1117
1118 find_loop() {
1119         for loop in ${LOOPS}
1120         do
1121                 if [ -e "${CDROOT_PATH}""${loop}" ]
1122                 then
1123                         LOOP="${loop}"
1124                 fi
1125         done
1126 }
1127
1128 find_looptype() {
1129         LOOPTYPE="${LOOP##*.}"
1130         [ "${LOOPTYPE}" == "loop" ] && LOOPTYPE="normal"
1131         [ "${LOOP}" == "/zisofs" ] && LOOPTYPE="${LOOP#/}"
1132         [ -z "${LOOPTYPE}" ] && LOOPTYPE="noloop"
1133 }
1134
1135 getdvhoff() {
1136         echo $(( $(hexdump -n 4 -s $((316 + 12 * $2)) -e '"%i"' $1) * 512))
1137 }
1138
1139 setup_squashfs_aufs() {
1140         (
1141         # Setup aufs directories and vars
1142         local overlay=/mnt/overlay
1143         local static=/mnt/livecd
1144
1145         for i in "${overlay}" "${static}"; do
1146                 [ ! -d "${i}" ] && mkdir -p "${i}"
1147         done
1148         good_msg "Loading aufs"
1149         modprobe aufs > /dev/null 2>&1
1150
1151         mount -t squashfs -o loop,ro "${CDROOT_PATH}/${LOOPEXT}${LOOP}" "${static}"
1152         mount -t tmpfs none "${overlay}"
1153         mount -t aufs -o br:${overlay}:${static} aufs "${NEW_ROOT}"
1154
1155         [ ! -d "${NEW_ROOT}${overlay}" ] && mkdir -p "${NEW_ROOT}${overlay}"
1156         [ ! -d "${NEW_ROOT}${static}" ] && mkdir -p "${NEW_ROOT}${static}"
1157         echo "aufs / aufs defaults 0 0" > "${NEW_ROOT}"/etc/fstab
1158         for i in "${overlay}" "${static}"; do mount --move "${i}" "${NEW_ROOT}${i}"; done
1159
1160         # have handy /mnt/cdrom (CDROOT_PATH) as well
1161         local new_cdroot="${NEW_ROOT}${CDROOT_PATH}"
1162         [ ! -d "${new_cdroot}" ] && mkdir -p "${new_cdroot}"
1163         mount --bind "${CDROOT_PATH}" "${new_cdroot}"
1164         )
1165 }
1166
1167 setup_unionfs() {
1168         local rw_dir=$1
1169         local ro_dir=$2
1170         if [ "${USE_UNIONFS_NORMAL}" = '1' ]
1171         then
1172                 # Directory used for rw changes in union mount filesystem
1173                 UNION=/union
1174 #               MEMORY=/memory
1175 #               if [ -z "$UID" ]
1176 #               then
1177 #                       CHANGES=$MEMORY/unionfs_changes/default
1178 #               else
1179 #                       CHANGES=$MEMORY/unionfs_changes/$UID
1180 #               fi
1181
1182 #               mkdir -p ${MEMORY}
1183                 mkdir -p ${UNION}
1184                 good_msg "Loading fuse module"
1185                 modprobe fuse > /dev/null 2>&1
1186 #                 if [ -n "${UNIONFS}" ]
1187 #                 then
1188 #                         CHANGESDEV=${UNIONFS}
1189 #                         good_msg "mounting $CHANGESDEV to $MEMORY for unionfs support"
1190 #                         mount -t auto $CHANGESDEV $MEMORY
1191 #                         # mount tmpfs only in the case when changes= boot parameter was
1192 #                         # empty or we were not able to mount the storage device
1193 #                         ret=$?
1194 #                         if [ ${ret} -ne 0 ]
1195 #                         then
1196 #                                 bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based unionfs"
1197 #                                 mount -t tmpfs tmpfs $MEMORY
1198 #                         fi
1199 #                         if [ "${CDROOT}" -eq '1' -a ! -f ${MEMORY}/livecd.unionfs  ]
1200 #                         then
1201 #                                 umount $MEMORY
1202 #                                 bad_msg "failed to find livecd.unionfs file on $CHANGESDEV"
1203 #                                 bad_msg "create a livecd.unionfs file on this device if you wish to use it for unionfs"
1204 #                                 bad_msg "falling back to ramdisk based unionfs for safety"
1205 #                                 mount -t tmpfs tmpfs $MEMORY
1206 #                         fi
1207 #                 else
1208 #                         good_msg "Mounting ramdisk to $MEMORY for unionfs support..."
1209 #                         mount -t tmpfs tmpfs $MEMORY
1210 #                 fi
1211
1212                 mkdir /tmp
1213                 mkdir -p ${UNION}
1214 #               mkdir -p $CHANGES
1215 #               mount -t unionfs -o dirs=$CHANGES=rw unionfs ${UNION}
1216                 good_msg "Creating union mount"
1217                 unionfs -o allow_other,cow,noinitgroups,suid,dev,default_permissions,use_ino ${rw_dir}=RW:${ro_dir}=RO ${UNION} 2>/dev/null
1218                 ret=$?
1219                 if [ ${ret} -ne 0 ]
1220                 then
1221                         bad_msg "Can't setup union mount!"
1222                         USE_UNIONFS_NORMAL=0
1223                 fi
1224                 [ ! -d "${NEW_ROOT}${CDROOT_PATH}" ] && mkdir -p "${NEW_ROOT}${CDROOT_PATH}"
1225                 mount --bind "${CDROOT_PATH}" "${NEW_ROOT}${CDROOT_PATH}"
1226         else
1227                 USE_UNIONFS_NORMAL=0
1228         fi
1229 }
1230
1231 get_mounts_list()
1232 {
1233         awk '
1234                 /^[[:blank:]]*#/ { next }
1235                 { print $1 }
1236                 ' ${NEW_ROOT}/etc/initramfs.mounts
1237 }
1238
1239 get_mount_fstype()
1240 {
1241         [ -e "${NEW_ROOT}"/etc/fstab ] || return 1
1242         awk -v fs="$1" '
1243                 /^[[:blank:]]*#/ { next }
1244                 $2 == fs { print $3 }
1245                 ' ${NEW_ROOT}/etc/fstab
1246 }
1247
1248 get_mount_options()
1249 {
1250         [ -e "${NEW_ROOT}"/etc/fstab ] || return 1
1251         awk -v fs="$1" '
1252                 /^[[:blank:]]*#/ { next }
1253                 $2 == fs { print $4 }
1254                 ' ${NEW_ROOT}/etc/fstab
1255 }
1256
1257 get_mount_device()
1258 {
1259         [ -e "${NEW_ROOT}"/etc/fstab ] || return 1
1260         awk -v fs="$1" '
1261                 /^[[:blank:]]*#/ { next }
1262                 $2 == fs { print $1 }
1263                 ' ${NEW_ROOT}/etc/fstab
1264 }
1265
1266 # If the kernel is handed a mount option is does not recognize, it WILL fail to
1267 # mount. util-linux handles auto/noauto, but busybox passes it straight to the kernel
1268 # which then rejects the mount.
1269 # To make like a little easier, busybox mount does not care about leading,
1270 # trailing or duplicate commas.
1271 strip_mount_options()
1272 {
1273         sed -r 's/(,|^)(no)?auto(,|$)/,/g'
1274 }