src/nash/mkinitrd

   1 #!/bin/bash --norc
   2
   3 # mkinitrd
   4 #
   5 # Copyright 2005 Red Hat, Inc.
   6 #
   7 # Written by Erik Troan <ewt@redhat.com>
   8 #
   9 # Contributors:
  10 #       Elliot Lee <sopwith@cuc.edu>
  11 #       Miguel de Icaza <miguel@nuclecu.unam.mx>
  12 #       Christian 'Dr. Disk' Hechelmann <drdisk@ds9.au.s.shuttle.de>
  13 #       Michael K. Johnson <johnsonm@redhat.com>
  14 #       Pierre Habraken <Pierre.Habraken@ujf-grenoble.fr>
  15 #       Jakub Jelinek <jakub@redhat.com>
  16 #       Carlo Arenas Belon (carenas@chasqui.lared.net.pe>
  17 #       Keith Owens <kaos@ocs.com.au>
  18 #       Bernhard Rosenkraenzer <bero@redhat.com>
  19 #       Matt Wilson <msw@redhat.com>
  20 #       Trond Eivind Glomsrød <teg@redhat.com>
  21 #       Jeremy Katz <katzj@redhat.com>
  22 #       Preston Brown <pbrown@redhat.com>
  23 #       Bill Nottingham <notting@redhat.com>
  24 #       Guillaume Cottenceau <gc@mandrakesoft.com>
  25 #       Peter Jones <pjones@redhat.com>
  26
  27 umask 0022
  28
  29 PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH
  30 export PATH
  31
  32 VERSION=4.2.11
  33
  34 compress=1
  35 allowmissing=""
  36 target=""
  37 kernel=""
  38 force=""
  39 verbose=""
  40 MODULES=""
  41 img_vers=""
  42 builtins=""
  43 pivot=1
  44 squashfs=1
  45 initramfs=""
  46 modulefile=/etc/modules.conf
  47 rc=0
  48
  49 IMAGESIZE=8000
  50 PRESCSIMODS="scsi_mod sd_mod unknown"
  51 fstab="/etc/fstab"
  52
  53 if [ -f /etc/udev/udev.conf ]; then
  54     USE_UDEV="yes"
  55     UDEV_TMPFS="yes"
  56     UDEV_KEEP_DEV="yes"
  57     . /etc/udev/udev.conf
  58     [ -x /sbin/udev.static ] || USE_UDEV=
  59 fi
  60
  61 usage () {
  62     echo "usage: `basename $0` [--version] [-v] [-f] [--preload <module>]" >&2
  63     echo "       [--omit-scsi-modules] [--omit-raid-modules] [--omit-lvm-modules]" >&2
  64     echo "       [--with=<module>] [--image-version] [--fstab=<fstab>] [--nocompress]" >&2
  65     echo "       [--builtin=<module>] [--nopivot] [--nosquashfs] <initrd-image> <kernel-version>" >&2
  66     echo "" >&2
  67     echo "       (ex: `basename $0` /boot/initrd-2.2.5-15.img 2.2.5-15)" >&2
  68     exit 1
  69 }
  70
  71 moduledep() {
  72     if [ ! -f "/lib/modules/$kernel/modules.dep" ]; then
  73         echo "No dep file found for kernel $kernel" >&2
  74         exit 1
  75     fi
  76
  77     [ -n "$verbose" ] && echo -n "Looking for deps of module $1"
  78     deps=$(gawk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \
  79                 function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \
  80                 function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \
  81                 /^\/lib/ { show(); \
  82                            orig=modname($1); dep=""; \
  83                            if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \
  84                 /^      / { dep=sprintf("%s %s", dep, modname($1));  } \
  85                 END      { show(); exit(rc) }' /lib/modules/$kernel/modules.dep $1)
  86     [ -n "$verbose" ] && echo -e "\t$deps"
  87 }
  88
  89 findmodule() {
  90     skiperrors=""
  91
  92     if [ $1 == "--skiperrors" ]; then
  93         skiperrors=--skiperrors
  94         shift
  95     fi
  96
  97     local modName=$1
  98
  99     if [ "$modName" = "off" -o "$modName" = "null" ]; then
 100         return
 101     fi
 102
 103     if [ $(echo $modName | cut -b1) = "-" ]; then
 104         skiperrors=--skiperrors
 105         modName=$(echo $modName | cut -b2-)
 106     fi
 107
 108     if echo $builtins | egrep -q '(^| )'$modName'( |$)' ; then
 109         [ -n "$verbose" ] && echo "module $modName assumed to be built in"
 110         set +x
 111         return
 112     fi
 113
 114     # special cases
 115     if [ "$modName" = "i2o_block" ]; then
 116         findmodule i2o_core
 117         findmodule -i2o_pci
 118         modName="i2o_block"
 119     elif [ "$modName" = "ppa" ]; then
 120         findmodule parport
 121         findmodule parport_pc
 122         modName="ppa"
 123     elif [ "$modName" = "sbp2" ]; then
 124         findmodule ieee1394
 125         findmodule ohci1394
 126         modName="sbp2"
 127     else
 128         moduledep $modName
 129         for i in $deps; do
 130             findmodule $i
 131         done
 132     fi
 133
 134     for modExt in o.gz o ko ; do
 135         if [ -d /lib/modules/$kernel/updates ]; then
 136             fmPath=`(cd /lib/modules/$kernel/updates; echo find . -name $modName.$modExt -type f | /sbin/nash --quiet) | gawk {'print $1; exit;'}`
 137         fi
 138
 139         if [ -f /lib/modules/$kernel/updates/$fmPath ]; then
 140             fmPath=updates/$fmPath
 141             break
 142         fi
 143
 144         fmPath=`(cd /lib/modules/$kernel; echo find . -name $modName.$modExt -type f | /sbin/nash --quiet) | gawk {'print $1; exit;'}`
 145         if [ -f /lib/modules/$kernel/$fmPath ]; then
 146             break
 147         fi
 148     done
 149
 150     if [ ! -f /lib/modules/$kernel/$fmPath ]; then
 151         if [ -n "$skiperrors" ]; then
 152             return
 153         fi
 154
 155         # ignore the absence of the scsi modules
 156         for n in $PRESCSIMODS; do
 157             if [ "$n" = "$modName" ]; then
 158                 return;
 159             fi
 160         done;
 161
 162         if [ -n "$allowmissing" ]; then
 163             echo "WARNING: No module $modName found for kernel $kernel, continuing anyway" >&2
 164             return
 165         fi
 166
 167         echo "No module $modName found for kernel $kernel, aborting." >&2
 168         exit 1
 169     fi
 170
 171     # only need to add each module once
 172     if ! echo $MODULES | grep -q "$fmPath" 2>/dev/null ; then
 173         MODULES="$MODULES $fmPath"
 174     fi
 175 }
 176
 177 inst() {
 178     if [ "$#" != "2" ];then
 179         echo "usage: inst <file> <destination>"
 180         return
 181     fi
 182     [ -n "$verbose" ] && echo "$1 -> $2"
 183     cp $1 $2
 184 }
 185
 186 while [ $# -gt 0 ]; do
 187     case $1 in
 188         --fstab*)
 189             if echo $1 | grep -q '=' ; then
 190                 fstab=`echo $1 | sed 's/^--fstab=//'`
 191             else
 192                 fstab=$2
 193                 shift
 194             fi
 195             ;;
 196
 197         --with-usb)
 198             withusb=yes
 199             ;;
 200
 201         --with*)
 202             if echo $1 | grep -q '=' ; then
 203                 modname=`echo $1 | sed 's/^--with=//'`
 204             else
 205                 modname=$2
 206                 shift
 207             fi
 208
 209             basicmodules="$basicmodules $modname"
 210             ;;
 211
 212         --builtin*)
 213             if echo $1 | grep -q '=' ; then
 214                 modname=`echo $1 | sed 's/^--builtin=//'`
 215             else
 216                 modname=$2
 217                 shift
 218             fi
 219             builtins="$builtins $modname"
 220             ;;
 221
 222         --version)
 223             echo "mkinitrd: version $VERSION"
 224             exit 0
 225             ;;
 226
 227         -v)
 228             verbose=-v
 229             ;;
 230
 231         --nocompress)
 232             compress=""
 233             ;;
 234
 235         --nopivot)
 236             pivot=""
 237             ;;
 238
 239         --nosquashfs)
 240             squashfs=""
 241             ;;
 242
 243         --ifneeded)
 244             # legacy
 245             ;;
 246
 247         -f)
 248             force=1
 249             ;;
 250         --preload*)
 251             if echo $1 | grep -q '=' ; then
 252                 modname=`echo $1 | sed 's/^--preload=//'`
 253             else
 254                 modname=$2
 255                 shift
 256             fi
 257             PREMODS="$PREMODS $modname"
 258             ;;
 259         --omit-scsi-modules)
 260             PRESCSIMODS=""
 261             noscsi=1;
 262             ;;
 263         --omit-raid-modules)
 264             noraid=1;
 265             ;;
 266         --omit-lvm-modules)
 267             nolvm=1
 268             ;;
 269         --image-version)
 270             img_vers=yes
 271             ;;
 272         --noudev)
 273             USE_UDEV=
 274             ;;
 275         --allow-missing)
 276             allowmissing=yes
 277             ;;
 278         *)
 279             if [ -z "$target" ]; then
 280                 target=$1
 281             elif [ -z "$kernel" ]; then
 282                 kernel=$1
 283             else
 284                 usage
 285             fi
 286             ;;
 287     esac
 288
 289     shift
 290 done
 291
 292 if [ -z "$target" -o -z "$kernel" ]; then
 293     usage
 294 fi
 295
 296 if [ -n "$img_vers" ]; then
 297     target="$target-$kernel"
 298 fi
 299
 300 if [ -z "$force" -a -f $target ]; then
 301     echo "$target already exists." >&2
 302     exit 1
 303 fi
 304
 305 if [ ! -d /lib/modules/$kernel ]; then
 306     echo "/lib/modules/$kernel is not a directory." >&2
 307     exit 1
 308 fi
 309
 310 if [ $UID != 0 ]; then
 311     echo "mkinitrd must be run as root"
 312     exit 1
 313 fi
 314
 315 kernelmajor=`echo $kernel | cut -d . -f 1,2`
 316
 317 #if [ "$kernelmajor" == "2.4" ]; then
 318     if [ -n "$verbose" ]; then echo "Creating old-style initrd"; fi
 319     USE_UDEV=
 320 #else
 321 #    if [ -n "$verbose" ]; then echo "Creating initramfs"; fi
 322 #    modulefile=/etc/modprobe.conf
 323 #    initramfs=1
 324 #    pivot=""
 325 #fi
 326
 327 # if we're not using udev, don't set any of the other bits
 328 [ -z "$USE_UDEV" ] && UDEV_TMPFS= && UDEV_KEEP_DEV=
 329
 330 # find a temporary directory which doesn't use tmpfs
 331 TMPDIR=""
 332 for t in /tmp /var/tmp /root ${PWD}; do
 333     if [ ! -d $t ]; then continue; fi
 334     if ! echo access -w $t | /sbin/nash --quiet; then continue; fi
 335
 336     fs=$(df -T $t 2>/dev/null | gawk '{line=$1;} END {printf $2;}')
 337     if [ "$fs" != "tmpfs" ]; then
 338         TMPDIR=$t
 339         break
 340     fi
 341 done
 342
 343 if [ -z "$TMPDIR" ]; then
 344     echo "no temporary directory could be found" >&2
 345     exit 1
 346 fi
 347
 348 if [ $TMPDIR = "/root" -o $TMPDIR = "${PWD}" ]; then
 349     echo "WARNING: using $TMPDIR for temporary files" >&2
 350 fi
 351
 352 for n in $PREMODS; do
 353         findmodule $n
 354 done
 355
 356 needusb=""
 357 if [ -n "$withusb" ]; then
 358     # If / or /boot is on a USB device include the driver. With root by
 359     # label we could still get some odd behaviors
 360     for fs in / /boot ; do
 361         esc=$(echo $fs | sed 's,/,\\/,g')
 362         dev=$(mount | gawk "/ on ${esc} / { print \$1 }" | sed 's/[0-9]*$//' | cut -d/ -f3)
 363         if [ "$(echo $dev | cut -c1-2)" = sd ]; then
 364           if [ `which kudzu 2>/dev/null` ]; then
 365             host=$(kudzu --probe -b scsi |
 366               gawk '/^device: '${dev}'/,/^host:/ { if (/^host/) { print $2; exit; } }')
 367             if [ -d /proc/scsi/usb-storage-${host} -o -f /proc/scsi/usb-storage/${host} ]; then
 368                 needusb=1
 369             fi
 370           fi
 371         fi
 372     done
 373 fi
 374
 375 if [ -n "$needusb" ]; then
 376     drivers=$(gawk '/^alias[[:space:]]+usb-controller[0-9]* / { print $3}' < $modulefile)
 377     if [ -n "$drivers" ]; then
 378         for driver in $drivers; do
 379             findmodule $driver
 380         done
 381         findmodule scsi_mod
 382         findmodule sd_mod
 383         findmodule usb-storage
 384     fi
 385 fi
 386
 387 if [ -z "$noscsi" ]; then
 388     if [ ! -f $modulefile ]; then
 389         modulefile=/etc/conf.modules
 390     fi
 391
 392     if [ -f $modulefile ]; then
 393         scsimodules=`grep "alias[[:space:]]\+scsi_hostadapter" $modulefile | grep -v '^[        ]*#' | LC_ALL=C sort -u | gawk '{ print $3 }'`
 394
 395         if [ -n "$scsimodules" ]; then
 396             for n in $PRESCSIMODS; do
 397                 findmodule $n
 398             done
 399
 400             for n in $scsimodules; do
 401     # for now allow scsi modules to come from anywhere.  There are some
 402     # RAID controllers with drivers in block/
 403                 findmodule $n
 404             done
 405         fi
 406     fi
 407 fi
 408
 409 # If we have ide devices and module ide, do the right thing
 410 ide=/proc/ide/ide*
 411 if [ -n "$ide" ]; then
 412     findmodule -ide-disk
 413 fi
 414
 415 # If we use LVM, include lvm-mod
 416 if [ -z "$nolvm" ]; then
 417     if [ -f /proc/lvm/global  ]; then
 418         if  grep -q '^VG:' /proc/lvm/global ; then
 419             if [ "$kernelmajor" == "2.4" ]; then
 420                 findmodule -lvm-mod
 421             else
 422                 findmodule -dm-mod
 423             fi
 424         fi
 425     fi
 426
 427     if [ -x /sbin/dmsetup -a -e /dev/mapper/control ]; then
 428         dmout=$(/sbin/dmsetup ls 2>/dev/null)
 429         if [ "$dmout" != "No devices found" -a "$dmout" != "" ]; then
 430             findmodule -dm-mod
 431         fi
 432     fi
 433 fi
 434
 435 # If we have dasd devices, include the necessary modules (S/390)
 436 if [ -d /proc/dasd ]; then
 437     findmodule -dasd_mod
 438     findmodule -dasd_eckd_mod
 439     findmodule -dasd_fba_mod
 440 fi
 441
 442 if [ -z "$noraid" -a -f /proc/mdstat ]; then
 443     # load appropriate raid devices if necessary -- we'll load whatever
 444     # /proc/mdstat suggests
 445
 446     # note that the gawk below contains a space and a tab
 447     for level in $(gawk '/^md[0-9][0-9]*[       ]*:/ { print $4 }' \
 448                     /proc/mdstat | sort -u); do
 449         case $level in
 450         linear)
 451             findmodule linear
 452             startraid=1
 453             ;;
 454         multipath)
 455             findmodule multipath
 456             startraid=1
 457             ;;
 458         raid[01456])
 459             findmodule $level
 460             startraid=1
 461             ;;
 462         *)
 463             echo "raid level $level (in /proc/mdstat) not recognized" >&2
 464             ;;
 465         esac
 466     done
 467
 468     if [ -n "$startraid" ]; then
 469         raiddevices=$(gawk '/^md[0-9][0-9]*[        ]*:/ { print $1 }' \
 470                             /proc/mdstat | sort)
 471     fi
 472 fi
 473
 474 # check to see if we need to set up a loopback filesystem
 475 rootdev=$(gawk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' $fstab)
 476 if echo $rootdev | cut -d/ -f3 | grep -q loop ; then
 477     key="^# $(echo $rootdev | cut -d/ -f3 | tr '[a-z]' '[A-Z]'):"
 478     if ! grep "$key" $fstab >> /dev/null; then
 479         echo "The root filesystem is on a $rootdev, but there is no magic entry in $fstab" >&2
 480         echo "for this device. Consult the mkinitrd man page for more information" >&2
 481         exit 1
 482     fi
 483
 484     line=$(grep "$key" $fstab)
 485     loopDev=$(echo $line | gawk '{print $3}')
 486     loopFs=$(echo $line | gawk '{print $4}')
 487     loopFile=$(echo $line | gawk '{print $5}')
 488
 489     basicmodules="$basicmodules -loop"
 490     if [ "$loopFs" = "vfat" -o "$loopFs" = "msdos" ]; then
 491         basicmodules="$basicmodules -fat"
 492     fi
 493     basicmodules="$basicmodules -${loopFs}"
 494 # check if the root fs is on a logical volume
 495 elif ! echo $rootdev | cut -c1-6 |grep -q "LABEL=" ; then
 496     root_vg=$(echo $rootdev | cut -d/ -f3)
 497     rootdev=$(echo "readlink $rootdev" | /sbin/nash --quiet)
 498     major=`ls -l $rootdev | sed -e "s/.* \\([0-9]\+\\), *[0-9]\+.*/\\1/"`
 499     [ "$major" != "58" ] || root_lvm=1
 500     if echo $rootdev |grep -q /dev/mapper 2>/dev/null ; then root_lvm=1 ; fi
 501 fi
 502
 503 rootfs=$(gawk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' $fstab)
 504 rootopts=$(gawk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' $fstab \
 505     | sed -e 's/\(^rw,\|rw,$\)//' -e 's/,rw,/,/' -e 's/^rw$/ro/')
 506
 507 # in case the root filesystem is modular
 508 findmodule -${rootfs}
 509
 510 if [ -n "$root_lvm" ]; then
 511     if [ "$kernelmajor" == "2.4" ]; then
 512         findmodule -lvm-mod
 513     else
 514         findmodule -dm-mod
 515         # DM requires all of these to be there in case someone used the
 516         # feature.  broken.  (#132001)
 517         findmodule -dm-mirror
 518         findmodule -dm-zero
 519         findmodule -dm-snapshot
 520     fi
 521 fi
 522
 523 for n in $basicmodules; do
 524     findmodule $n
 525 done
 526
 527 if [ -n "$verbose" ]; then
 528     echo "Using modules: $MODULES"
 529 fi
 530
 531
 532 MNTIMAGE=`mktemp -d ${TMPDIR}/initrd.XXXXXX`
 533 IMAGE=`mktemp ${TMPDIR}/initrd.img.XXXXXX`
 534 if [ -z "$initramfs" ]; then
 535     MNTPOINT=`mktemp -d ${TMPDIR}/initrd.mnt.XXXXXX`
 536     RCFILE=$MNTIMAGE/linuxrc
 537 else
 538     RCFILE=$MNTIMAGE/init
 539 fi
 540
 541 if [ -z "$MNTIMAGE" -o -z "$IMAGE" ]; then
 542     echo "Error creating temporaries.  Try again" >&2
 543     exit 1
 544 fi
 545
 546 if [ -z "$initramfs" ]; then
 547   dd if=/dev/zero of=$IMAGE bs=1k count=$IMAGESIZE 2> /dev/null || exit 1
 548
 549   LODEV=$(echo findlodev | /sbin/nash --quiet)
 550
 551   if [ -z "$LODEV" ]; then
 552     rm -rf $MNTIMAGE $MNTPOINT $IMAGE
 553     echo "All of your loopback devices are in use." >&2
 554     exit 1
 555   fi
 556
 557   losetup ${LODEV} $IMAGE || exit 1
 558
 559   # We have to "echo y |" so that it doesn't complain about $IMAGE not
 560   # being a block device
 561   echo y | mkfs.minix -i 100 $LODEV $IMAGESIZE >/dev/null 2>/dev/null
 562
 563   if [ -n "$verbose" ]; then
 564       echo "Using loopback device $LODEV"
 565   fi
 566
 567   mkdir -p $MNTPOINT
 568   mount -t minix $LODEV $MNTPOINT || {
 569         echo "Can't get a loopback device"
 570         exit 1
 571   }
 572
 573   # We don't need this directory, so let's save space
 574   rmdir $MNTPOINT/lost+found >/dev/null 2>&1
 575 fi
 576
 577 mkdir -p $MNTIMAGE
 578 mkdir -p $MNTIMAGE/lib
 579 mkdir -p $MNTIMAGE/bin
 580 mkdir -p $MNTIMAGE/etc
 581 mkdir -p $MNTIMAGE/dev
 582 mkdir -p $MNTIMAGE/hd
 583 mkdir -p $MNTIMAGE/loopfs
 584 mkdir -p $MNTIMAGE/proc
 585 mkdir -p $MNTIMAGE/sys
 586 mkdir -p $MNTIMAGE/sysroot
 587 ln -s bin $MNTIMAGE/sbin
 588
 589 inst /sbin/nash "$MNTIMAGE/bin/nash"
 590 inst /sbin/insmod.static "$MNTIMAGE/bin/insmod"
 591 inst /bin/tar.static "$MNTIMAGE/bin/tar"
 592 inst /usr/bin/lzmadec "$MNTIMAGE/bin/lzmadec"
 593 inst /sbin/fsck.minix.static "$MNTIMAGE/bin/fsck.minix"
 594 ln -s /sbin/nash $MNTIMAGE/sbin/modprobe
 595
 596 if [ -n "$USE_UDEV" ]; then
 597     inst /sbin/udev.static $MNTIMAGE/sbin/udev
 598     inst /sbin/udevstart.static $MNTIMAGE/sbin/udevstart
 599     mkdir -p $MNTIMAGE/etc/udev
 600     inst /etc/udev/udev.conf $MNTIMAGE/etc/udev/udev.conf
 601     ln -s /sbin/nash $MNTIMAGE/sbin/hotplug
 602 fi
 603
 604 for MODULE in $MODULES; do
 605     if [ -x /usr/bin/strip ]; then
 606         /usr/bin/strip -g $verbose /lib/modules/$kernel/$MODULE -o $MNTIMAGE/lib/$(basename $MODULE)
 607     else
 608         cp $verbose -a /lib/modules/$kernel/$MODULE $MNTIMAGE/lib
 609     fi
 610 done
 611
 612 # mknod'ing the devices instead of copying them works both with and
 613 # without devfs...
 614 mknod $MNTIMAGE/dev/console c 5 1
 615 mknod $MNTIMAGE/dev/null c 1 3
 616 mknod $MNTIMAGE/dev/ram b 1 1
 617 mknod $MNTIMAGE/dev/systty c 4 0
 618 for i in 1 2 3 4; do
 619     mknod $MNTIMAGE/dev/tty$i c 4 $i
 620 done
 621
 622 # FIXME -- this won't work if you're using devfs
 623 if [ -n "$root_lvm" -a "$kernelmajor" == "2.4" ]; then
 624     pvs=$(/sbin/pvscan | grep " PV " | gawk {'print $5;'} |sed 's/"//g')
 625     for pv in $pvs; do
 626         cp $verbose --parents -a $pv $MNTIMAGE/
 627     done
 628
 629     inst /sbin/vgwrapper "$MNTIMAGE/bin/vgwrapper"
 630     ln "$MNTIMAGE/bin/vgwrapper" "$MNTIMAGE/bin/vgscan"
 631     ln "$MNTIMAGE/bin/vgwrapper" "$MNTIMAGE/bin/vgchange"
 632
 633     mknod $MNTIMAGE/dev/lvm b 109 0
 634 fi
 635
 636 if [ -n "$root_lvm" -a "$kernelmajor" == "2.6" ]; then
 637     inst /sbin/lvm.static "$MNTIMAGE/bin/lvm"
 638     if [ -f /etc/lvm/lvm.conf ]; then
 639         cp $verbose --parents /etc/lvm/lvm.conf $MNTIMAGE/
 640     fi
 641 fi
 642
 643 echo "#!/bin/nash" >| $RCFILE
 644 echo "" >> $RCFILE
 645
 646 echo "mount -t proc /proc /proc" >> $RCFILE
 647 echo "setquiet" >> $RCFILE
 648 echo "echo Mounted /proc filesystem" >> $RCFILE
 649
 650 if [ "$kernelmajor" != "2.4" ]; then
 651     echo "echo Mounting sysfs" >> $RCFILE
 652     echo "mount -t sysfs /sys /sys" >> $RCFILE
 653 fi
 654
 655 if [ -n "$USE_UDEV" ]; then
 656     if [ -n "$UDEV_TMPFS" ]; then
 657         cat >> $RCFILE <<EOF
 658 echo Creating /dev
 659 mount -o mode=0755 -t tmpfs /dev /dev
 660 mknod /dev/console c 5 1
 661 mknod /dev/null c 1 3
 662 mknod /dev/zero c 1 5
 663 mkdir /dev/pts
 664 mkdir /dev/shm
 665 EOF
 666     fi
 667     cat >> $RCFILE <<EOF
 668 echo Starting udev
 669 /sbin/udevstart
 670 echo -n "/sbin/hotplug" > /proc/sys/kernel/hotplug
 671 EOF
 672 fi
 673
 674 for MODULE in $MODULES; do
 675     text=""
 676     module=`echo $MODULE | sed "s|.*/||" | sed "s/.k\?o$//"`
 677     fullmodule=`echo $MODULE | sed "s|.*/||"`
 678
 679     options=`sed -n -e "s/^options[     ][      ]*$module[      ][      ]*//p" $modulefile 2>/dev/null`
 680
 681     if [ -n "$verbose" ]; then
 682         if [ -n "$options" ]; then
 683             text=" with options $options"
 684         fi
 685         echo "Loading module $module$text"
 686     fi
 687     echo "echo \"Loading $fullmodule module\"" >> $RCFILE
 688     echo "insmod /lib/$fullmodule $options" >> $RCFILE
 689
 690     # Hack - we need a delay after loading usb-storage to give things
 691     #        time to settle down before we start looking a block devices
 692     if [ "$module" = "usb-storage" ]; then
 693         echo "sleep 8" >> $RCFILE
 694     fi
 695     if [ "$module" = "zfcp" -a -f /etc/zfcp.conf ]; then
 696         echo "sleep 2" >> $RCFILE
 697         cat /etc/zfcp.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE SCSIID WWPN SCSILUN FCPLUN; do
 698             echo "echo -n $WWPN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add" >>$RCFILE
 699             echo "echo -n $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/unit_add" >>$RCFILE
 700             echo "echo -n 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online" >>$RCFILE
 701         done
 702     fi
 703 done
 704
 705 # HACK: module loading + device creation isn't necessarily synchronous...
 706 # this will make sure that we have all of our devices before trying
 707 # things like RAID or LVM
 708 if [ -n "$USE_UDEV" ]; then
 709   echo "/sbin/udevstart" >> $RCFILE
 710 fi
 711
 712 echo "sleep 2" >> $RCFILE
 713
 714 if [ -n "$startraid" ]; then
 715     for dev in $raiddevices; do
 716         cp -a /dev/${dev} $MNTIMAGE/dev
 717         echo "raidautorun /dev/${dev}" >> $RCFILE
 718     done
 719 fi
 720
 721 if [ -z "$USE_UDEV" ]; then
 722     echo "echo Creating block devices" >> $RCFILE
 723     echo "mkdevices /dev" >> $RCFILE
 724 fi
 725
 726 echo "mknod /dev/loop0 b 7 0" >> $RCFILE
 727
 728 if [ -n "$loopDev" ]; then
 729     mkdir /initrd
 730     cp -a $loopDev $MNTIMAGE/dev
 731     cp -a $rootdev $MNTIMAGE/dev
 732     echo "echo Mounting device containing loopback root filesystem" >> $RCFILE
 733     echo "mount -t $loopFs $loopDev /loopfs" >> $RCFILE
 734     echo "echo Setting up loopback device $rootdev" >> $RCFILE
 735     echo "losetup $rootdev /loopfs$loopFile" >> $RCFILE
 736 elif [ -n "$root_lvm" ]; then
 737   if [ "$kernelmajor" == "2.4" ]; then
 738     echo "echo Scanning logical volumes" >> $RCFILE
 739     echo "vgscan" >> $RCFILE
 740     echo "echo Activating logical volumes" >> $RCFILE
 741     echo "vgchange -ay" >> $RCFILE
 742   else
 743     echo "echo Making device-mapper control node" >> $RCFILE
 744     echo "mkdmnod" >> $RCFILE
 745     echo "echo Scanning logical volumes" >> $RCFILE
 746     echo "lvm vgscan --ignorelockingfailure" >> $RCFILE
 747     echo "echo Activating logical volumes" >> $RCFILE
 748     echo "lvm vgchange -ay --ignorelockingfailure $root_vg" >> $RCFILE
 749   fi
 750 fi
 751
 752 echo "echo Creating root device" >> $RCFILE
 753 echo "mkrootdev /dev/root" >> $RCFILE
 754 rootdev=/dev/root
 755
 756 if [ -n "$initramfs" ]; then
 757   echo "echo Mounting root filesystem" >> $RCFILE
 758   if [ -n "$squashfs" ]; then
 759     echo "mount -o $rootopts --ro -t $rootfs $rootdev /sysroot" >> $RCFILE
 760   else
 761     echo "fsck.minix $rootdev" >> $RCFILE
 762     echo "mount -o $rootopts -t minix $rootdev /hd" >> $RCFILE
 763     echo "losetup /dev/loop0 /hd/ipcop-1.5.0a1.squashfs" >> $RCFILE
 764     echo "mount --ro -t squashfs /dev/loop0 /sysroot" >> $RCFILE
 765     echo "mount -t tmpfs none /sysroot/var" >> $RCFILE
 766     echo "echo Unpacking IPCop configuration.. Please wait.." >> $RCFILE
 767     echo "tar -C /sysroot -xjf /hd/ipcop.tbz2" >> $RCFILE
 768   fi
 769
 770   echo "echo Switching to new root" >> $RCFILE
 771   if [ -n "$UDEV_KEEP_DEV" ]; then
 772     echo "switchroot --movedev /sysroot" >> $RCFILE
 773   else
 774     echo "switchroot /sysroot" >> $RCFILE
 775   fi
 776 else
 777   if [ "$kernelmajor" != "2.4" ]; then
 778     echo "umount /sys" >> $RCFILE
 779   fi
 780
 781   if [ -n "$pivot" ]; then
 782     echo "echo 0x0100 > /proc/sys/kernel/real-root-dev" >> $RCFILE
 783
 784     echo "echo Mounting root filesystem" >> $RCFILE
 785     if [ -n "$squashfs" ]; then
 786         echo "mount -o $rootopts --ro -t $rootfs $rootdev /sysroot" >> $RCFILE
 787     else
 788         echo "fsck.minix $rootdev" >> $RCFILE
 789         echo "mount -o $rootopts -t minix $rootdev /hd" >> $RCFILE
 790         echo "losetup /dev/loop0 /hd/ipcop-1.5.0a1.squashfs" >> $RCFILE
 791         echo "mount --ro -t squashfs /dev/loop0 /sysroot" >> $RCFILE
 792         echo "mount -t tmpfs none /sysroot/var" >> $RCFILE
 793         echo "echo Unpacking IPCop configuration.. Please wait.." >> $RCFILE
 794         echo "tar -C /sysroot -xjf /hd/ipcop.tbz2" >> $RCFILE
 795     fi
 796
 797     echo "pivot_root /sysroot /sysroot/initrd" >> $RCFILE
 798     echo "umount /initrd/proc" >> $RCFILE
 799   else
 800     echo "umount /proc" >> $RCFILE
 801   fi
 802
 803   [ -n "$UDEV_TMPFS" ] && echo "umount /initrd/dev" >> $RCFILE
 804 fi
 805 chmod +x $RCFILE
 806
 807 if [ -z "$initramfs" ]; then
 808   (cd $MNTIMAGE; tar cf - .) | (cd $MNTPOINT; tar xf -) || exit 1
 809
 810   umount $MNTPOINT
 811   losetup -d $LODEV
 812 else
 813   (cd $MNTIMAGE; find . | cpio --quiet -c -o) >| $IMAGE || exit 1
 814 fi
 815
 816 if [ -n "$compress" ]; then
 817     gzip -9 < $IMAGE >| $target || rc=1
 818 else
 819     cp -a $IMAGE $target || rc=1
 820 fi
 821 rm -rf $MNTIMAGE $IMAGE
 822 if [ -n "$MNTPOINT" ]; then rm -rf $MNTPOINT ; fi
 823
 824 exit $rc