#!/bin/bash --norc # vim:sts=4:sw=4:ts=8:et # mkdumprd # # Copyright 2005 Red Hat, Inc. # # Written by Erik Troan # # Contributors: # Elliot Lee # Miguel de Icaza # Christian 'Dr. Disk' Hechelmann # Michael K. Johnson # Pierre Habraken # Jakub Jelinek # Carlo Arenas Belon (carenas@chasqui.lared.net.pe> # Keith Owens # Bernhard Rosenkraenzer # Matt Wilson # Trond Eivind Glomsrød # Jeremy Katz # Preston Brown # Bill Nottingham # Guillaume Cottenceau # Peter Jones # Neil Horman umask 0022 export MALLOC_PERTURB_=204 PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH export PATH . /etc/rc.d/init.d/functions VERSION=5.0.39 PROBE="yes" MODULES="" PREMODS="" DMRAIDS="" MPATHS="" [ -e /etc/sysconfig/mkinitrd ] && . /etc/sysconfig/mkinitrd CONFMODS="$MODULES" MODULES="" withusb=yes compress=1 allowmissing="" target="" kernel="" force="" verbose="" img_vers="" builtins="" modulefile=/etc/modules.conf rc=0 IMAGESIZE=8000 PRESCSIMODS="sd_mod" fstab="/etc/fstab" vg_list="" net_list="" USING_METHOD="raw" vecho() { NONL="" if [ "$1" == "-n" ]; then NONL="-n" shift fi [ -n "$verbose" ] && echo $NONL "$@" } error() { NONL="" if [ "$1" == "-n" ]; then NONL="-n" shift fi echo $NONL "$@" >&2 } usage () { if [ "$1" == "-n" ]; then cmd=echo else cmd=error fi $cmd "usage: `basename $0` [--version] [--help] [-v] [-d] [-f] [--preload ]" $cmd " [--force-ide-probe] [--force-scsi-probe | --omit-scsi-modules]" $cmd " [--image-version] [--force-scsi-probe | --omit-raid-modules]" $cmd " [--with=] [--force-lvm-probe | --omit-lvm-modules]" $cmd " [--builtin=] [--omit-dmraid]" $cmd " [--fstab=] [--nocompress] " $cmd "" $cmd " (ex: `basename $0` /boot/initrd-2.2.5-15.img 2.2.5-15)" if [ "$1" == "-n" ]; then exit 0 else exit 1 fi } moduledep() { if [ ! -f "/lib/modules/$kernel/modules.dep" ]; then error "No dep file found for kernel $kernel" exit 1 fi vecho -n "Looking for deps of module $1" deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ /^\/lib/ { show(); \ orig=modname($1); dep=""; \ if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ END { show(); exit(rc) }' /lib/modules/$kernel/modules.dep $1) [ -n "$deps" ] && vecho ":$deps" || vecho } findone() { echo nash-find "$@" | /sbin/nash --force --quiet \ | /bin/awk '{ print $1; exit; }' } findall() { echo nash-find "$@" | /sbin/nash --force --quiet } dm_get_uuid() { echo dm get_uuid "$1" | /sbin/nash --force --quiet } findmodule() { skiperrors="" if [ $1 == "--skiperrors" ]; then skiperrors=--skiperrors shift fi local modName=$1 if [ "$modName" = "off" -o "$modName" = "null" ]; then return fi if [ $(echo $modName | cut -b1) = "-" ]; then skiperrors=--skiperrors modName=$(echo $modName | cut -b2-) fi case "$MODULES " in *"/$modName.ko "*) return ;; esac if echo $builtins | egrep -q '(^| )'$modName'( |$)' ; then vecho "module $modName assumed to be built in" return fi # special cases if [ "$modName" = "i2o_block" ]; then findmodule i2o_core findmodule -i2o_pci modName="i2o_block" elif [ "$modName" = "ppa" ]; then findmodule parport findmodule parport_pc modName="ppa" elif [ "$modName" = "sbp2" ]; then findmodule ieee1394 findmodule ohci1394 modName="sbp2" else moduledep $modName for i in $deps; do findmodule $i done fi for modExt in o.gz o ko ; do for modDir in /lib/modules/$kernel/updates /lib/modules/$kernel ; do if [ -d $modDir ]; then fmPath=$(findone $modDir -name $modName.$modExt) if [ -f "$fmPath" ]; then break 2 fi fi done done if [ ! -f $fmPath ]; then if [ -n "$skiperrors" ]; then return fi # ignore the absence of the scsi modules for n in $PRESCSIMODS; do if [ "$n" = "$modName" ]; then return; fi done; if [ -n "$allowmissing" ]; then error "WARNING: No module $modName found for kernel $kernel, continuing anyway" return fi error "No module $modName found for kernel $kernel, aborting." exit 1 fi # only need to add each module once MODULES="$MODULES $fmPath" # need to handle prescsimods here -- they need to go _after_ scsi_mod if [ "$modName" = "scsi_mod" ]; then for n in $PRESCSIMODS ; do findmodule $n done fi } finddmmods() { line=$(/sbin/dmsetup table "$1" 2>/dev/null) [ -z "$line" ] && return 1 type=$(echo "$line" | awk '{ print $3 }') [ -z "$type" ] && return 1 case "$type" in mirror) findmodule -dm-mirror ;; emc) findmodule -dm-emc findmodule -dm-round-robin ;; multipath) findmodule -dm-multipath findmodule -dm-round-robin ;; crypt) findmodule -dm-crypt ;; zero) findmodule -dm-zero ;; esac } inst() { if [ "$#" != "2" ];then echo "usage: inst " return fi vecho "$1 -> $2" cp $1 $2 } readlink() { echo nash-readlink "$1" | /sbin/nash --force --quiet } access() { echo nash-access -w $t | /sbin/nash --force --quiet } findstoragedriverinsys () { while [ ! -L device ]; do [ "$PWD" = "/sys" ] && return cd .. done cd $(readlink ./device) while [ ! -f modalias ]; do [ "$PWD" = "/sys/devices" ] && return cd .. done modalias=$(cat modalias) for driver in $(modprobe --set-version $kernel --show-depends $modalias 2>/dev/null| awk '{ print gensub(".*/","","g",$2) }') ; do findmodule ${driver%%.ko} done } findstoragedriver () { for device in $@ ; do case " $handleddevices " in *" $device "*) continue ;; *) handleddevices="$handleddevices $device" ;; esac if [[ "$device" =~ "md[0-9]+" ]]; then vecho "Found RAID component $device" handleraid "$device" continue fi vecho "Looking for driver for device $device" sysfs=$(findone -type d /sys/block -name $device) [ -z "$sysfs" ] && return pushd $sysfs >/dev/null 2>&1 findstoragedriverinsys popd >/dev/null 2>&1 done } findnetdriver() { for device in $@ ; do case " $handleddevices " in *" $device "*) continue ;; *) handleddevices="$handleddevices $device" ;; esac modalias=$(cat /sys/class/net/$device/device/modalias) for driver in $(modprobe --set-version $kernel --show-depends $modalias 2>/dev/null| awk '{ print gensub(".*/","","g",$2) }') ; do findmodule ${driver%%.ko} done done } handleraid() { local start=0 if [ -n "$noraid" -o ! -f /proc/mdstat ]; then return 0 fi levels=$(grep "^$1[ ]*:" /proc/mdstat | \ awk '{ print $4 }') devs=$(grep "^$1[ ]*:" /proc/mdstat | \ awk '{ print gensub("\\[[0-9]*\\]","","g",gensub("^md.*raid[0-9]*","","1")) }') for level in $levels ; do case $level in linear) findmodule linear start=1 ;; multipath) findmodule multipath start=1 ;; raid[01456] | raid10) findmodule $level start=1 ;; *) error "raid level $level (in /proc/mdstat) not recognized" ;; esac done findstoragedriver $devs if [ "$start" = 1 ]; then raiddevices="$raiddevices $1" fi return $start } handlelvordev() { local vg=`lvs --noheadings -o vg_name $1 2>/dev/null` if [ -n "$vg" ]; then vg=`echo $vg` # strip whitespace case " $vg_list " in *" $vg "*) ;; *) vg_list="$vg_list $vg" for device in `vgdisplay -v $vg 2>/dev/null | sed -n 's/PV Name//p'`; do findstoragedriver ${device##/dev/} done ;; esac else findstoragedriver ${1##/dev/} fi } handlenetdev() { local dev=$1 cp /etc/sysconfig/network-scripts/ifcfg-$dev $MNTIMAGE/etc . $MNTIMAGE/etc/ifcfg-$dev findnetdriver $dev if [ "$MASTER" == "yes" ] then #put code here to handle subdevs for a bond echo "BUS_ID=\"Bonding\"" >> $MNTIMAGE/etc/ifcfg-$dev elif [ "$VLAN" == "yes" ] then #put code to handle vlan devices echo "BUS+Id=\"Vlan\"" >> $MNTIMAGE/etc/ifcfg-$dev else BUS_ID=`/sbin/ethtool -i $dev | grep bus-info` echo "BUS_ID=\"$BUS_ID\"" >> $MNTIMAGE/etc/ifcfg-$dev fi if [ "$BOOTPROTO" == "dhcp" ] then echo iface $dev inet dhcp >> $MNTIMAGE/etc/network/interfaces else echo iface $dev inet static address $IPADDR netmask $NETMASK >> $MNTIMAGE/etc/network/interfaces fi } while [ $# -gt 0 ]; do case $1 in --fstab*) if echo $1 | grep -q '=' ; then fstab=`echo $1 | sed 's/^--fstab=//'` else fstab=$2 shift fi ;; --with-usb) withusb=yes ;; --without-usb) withusb=no ;; --with*) if echo $1 | grep -q '=' ; then modname=`echo $1 | sed 's/^--with=//'` else modname=$2 shift fi basicmodules="$basicmodules $modname" ;; --builtin*) if echo $1 | grep -q '=' ; then modname=`echo $1 | sed 's/^--builtin=//'` else modname=$2 shift fi builtins="$builtins $modname" ;; --version) echo "mkinitrd: version $VERSION" exit 0 ;; -v) verbose=-v ;; --nocompress) compress="" ;; --ifneeded) # legacy ;; -f) force=1 ;; -d) KDUMP_CONFIG_FILE="" if [ -f /etc/kdump.conf ]; then KDUMP_CONFIG_FILE="/etc/kdump.conf" fi ;; --preload*) if echo $1 | grep -q '=' ; then modname=`echo $1 | sed 's/^--preload=//'` else modname=$2 shift fi PREMODS="$PREMODS $modname" ;; --force-scsi-probe) forcescsi=1 ;; --omit-scsi-modules) PRESCSIMODS="" noscsi=1 ;; --force-raid-probe) forceraid=1 ;; --omit-raid-modules) noraid=1 ;; --force-lvm-probe) forcelvm=1 ;; --omit-lvm-modules) nolvm=1 ;; --omit-dmraid) nodmraid=1 ;; --force-ide-probe) forceide=1 ;; --image-version) img_vers=yes ;; --allow-missing) allowmissing=yes ;; --noresume) noresume=1 ;; --help) usage -n ;; *) if [ -z "$target" ]; then target=$1 elif [ -z "$kernel" ]; then kernel=$1 else usage fi ;; esac shift done if [ -z "$target" -o -z "$kernel" ]; then usage fi if [ -n "$img_vers" ]; then target="$target-$kernel" fi if [ -z "$force" -a -f $target ]; then error "$target already exists." exit 1 fi if [ -n "$forcescsi" -a -n "$noscsi" ]; then error "Can't both force scsi probe and omit scsi modules" exit 1 fi if [ -n "$forceraid" -a -n "$noraid" ]; then error "Can't both force raid probe and omit raid modules" exit 1 fi if [ -n "$forcelvm" -a -n "$nolvm" ]; then error "Can't both force LVM probe and omit LVM modules" exit 1 fi if [ ! -d /lib/modules/$kernel ]; then error 'No modules available for kernel "'${kernel}'".' exit 1 fi if [ $UID != 0 ]; then error "mkinitrd must be run as root." exit 1 fi vecho "Creating initramfs" modulefile=/etc/modprobe.conf # find a temporary directory which doesn't use tmpfs TMPDIR="" for t in /tmp /var/tmp /root ${PWD}; do if [ ! -d $t ]; then continue; fi if ! access -w $t ; then continue; fi fs=$(df -T $t 2>/dev/null | awk '{line=$1;} END {printf $2;}') if [ "$fs" != "tmpfs" ]; then TMPDIR=$t break fi done if [ -z "$TMPDIR" ]; then error "no temporary directory could be found." exit 1 fi if [ $TMPDIR = "/root" -o $TMPDIR = "${PWD}" ]; then error "WARNING: using $TMPDIR for temporary files" fi for n in $PREMODS; do findmodule $n done needusb="" if [ -n "$withusb" -a "x$PROBE" == "xyes" ]; then # If / or /boot is on a USB device include the driver. With root by # label we could still get some odd behaviors for fs in / /boot ; do esc=$(echo $fs | sed 's,/,\\/,g') dev=$(mount | awk "/ on ${esc} / { print \$1 }" | sed 's/[0-9]*$//' | cut -d/ -f3) if [ "$(echo $dev | cut -c1-2)" = sd ]; then if [ `which kudzu 2>/dev/null` ]; then host=$(kudzu --probe -b scsi | gawk '/^device: '${dev}'/,/^host:/ { if (/^host/) { print $2; exit; } }') if [ -d /proc/scsi/usb-storage-${host} -o -f /proc/scsi/usb-storage/${host} ]; then needusb=1 fi fi fi done fi if [ -n "$needusb" -a "x$PROBE" == "xyes" ]; then drivers=$(awk '/^alias[[:space:]]+usb-controller[0-9]* / { print $3}' < $modulefile) useUSB=0 if [ -n "$drivers" ]; then useUSB=1 for driver in $drivers; do findmodule $driver done fi for x in $(grep ^[eou]hci_hcd /proc/modules | awk '{ print $1 }' | tac) ; do useUSB=1 findmodule $(echo $x | sed 's/_/-/') done if [ "$useUSB" == "1" ]; then findmodule scsi_mod findmodule sd_mod findmodule usb-storage fi fi if [ -n "$forcescsi" -o -z "$noscsi" -a "x$PROBE" == "xyes" ]; then if [ ! -f $modulefile ]; then modulefile=/etc/conf.modules fi if [ -f $modulefile ]; then scsimodules=`grep "alias[[:space:]]\+scsi_hostadapter" $modulefile | grep -v '^[ ]*#' | LC_ALL=C sort -u | awk '{ print $3 }'` if [ -n "$scsimodules" ]; then for n in $scsimodules; do # for now allow scsi modules to come from anywhere. There are some # RAID controllers with drivers in block/ findmodule $n done fi fi fi # If we have ide devices and module ide, do the right thing ide=/proc/ide/ide* if [ -n "$forceide" -o -n "$ide" -a "x$PROBE" == "xyes" ]; then findmodule -ide-disk fi # If we have dasd devices, include the necessary modules (S/390) if [ "x$PROBE" == "xyes" -a -d /proc/dasd ]; then findmodule -dasd_mod findmodule -dasd_eckd_mod findmodule -dasd_fba_mod fi if [ "x$PROBE" == "xyes" ]; then rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' $fstab) rootopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' $fstab) # in case the root filesystem is modular findmodule -${rootfs} rootdev=$(awk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' $fstab) # check if it's nfsroot if [ "$rootfs" == "nfs" ]; then remote=$(echo $rootdev | cut -d : -f 1) # FIXME: this doesn't handle ips properly remoteip=$(host $remote | cut -d ' ' -f 4) netdev=`/sbin/ip route get to $remoteip |sed 's|.*dev \(.*\).*|\1|g' |awk {'print $1;'} |head -n 1` net_list="$net_list $netdev" # check if it's root by label elif echo $rootdev | cut -c1-6 | grep -q "LABEL=" ; then rootopts=$(echo $rootopts | sed -e 's/^r[ow],//' -e 's/,r[ow],$//' -e 's/,r[ow],/,/' \ -e 's/^r[ow]$/defaults/' -e 's/$/,ro/') majmin=$(get_numeric_dev dec /dev/root) if [ -n "$majmin" ]; then dev=$(findall /sys/block -name dev | while read device ; do \ echo "$majmin" | cmp -s $device && echo $device ; done \ | sed -e 's,.*/\([^/]\+\)/dev,\1,' ) if [ -n "$dev" ]; then vecho "Found root device $dev for $rootdev" rootdev=$dev fi fi else rootopts=$(echo $rootopts | sed -e 's/^r[ow],//' -e 's/,r[ow],$//' -e 's/,r[ow],/,/' \ -e 's/^r[ow]$/defaults/' -e 's/$/,ro/') fi [ "$rootfs" != "nfs" ] && handlelvordev $rootdev # find the first swap dev which would get used for swsusp swsuspdev=$(awk '/^[ \t]*[^#]/ { if ($3 == "swap") { print $1; }}' $fstab \ | head -n 1) if ! echo $swsuspdev | cut -c1-6 | grep -q "LABEL=" ; then handlelvordev $swsuspdev fi fi # If we use LVM or dm-based raid, include dm-mod # XXX: dm not really supported yet. testdm="" [ -n "$vg_list" ] && testdm="yes" [ -n "$forceraid" -o -n "$forcelvm" ] && testdm="yes" [ -z "$nolvm" -o -z "$noraid" ] && testdm="yes" [ "x$PROBE" != "xyes" ] && testdm="" if [ -n "$testdm" ]; then if [ -x /sbin/dmsetup -a -e /dev/mapper/control ]; then dmout=$(/sbin/dmsetup ls 2>/dev/null) if [ "$dmout" != "No devices found" -a "$dmout" != "" ]; then findmodule -dm-mod # DM requires all of these to be there in case someone used the # feature. broken. (#132001) findmodule -dm-mirror findmodule -dm-zero findmodule -dm-snapshot fi fi if [ -x /sbin/dmraid -a -z "$nodmraid" ]; then for raid in $(/sbin/dmraid -s -craidname 2>/dev/null | grep -vi "no raid disks" ) ; do dmname=$(resolve_dm_name $raid) if [ -n "$dmname" ]; then DMRAIDS="$DMRAIDS $dmname" fi done fi fi for n in $basicmodules; do findmodule $n done for n in $CONFMODS; do findmodule $n done finddmmods vecho "Using modules:$MODULES" MNTIMAGE=`mktemp -d ${TMPDIR}/initrd.XXXXXX` IMAGE=`mktemp ${TMPDIR}/initrd.img.XXXXXX` RCFILE=$MNTIMAGE/init cemit() { cat >> $RCFILE } emit() { NONL="" if [ "$1" == "-n" ]; then NONL="-n" shift fi echo $NONL "$@" >> $RCFILE } emitdm() { vecho "Adding dm map \"$1\"" UUID=$(dm_get_uuid "$1") if [ -n "$UUID" ]; then UUID="--uuid $UUID" fi emit dm create "$1" $UUID $(/sbin/dmsetup table "$1") } emitdms() { [ -z "$MPATHS" -a -z "$DMRAIDS" ] && return 0 echo dm list $MPATHS $DMRAIDS | nash --force --quiet | \ while read ACTION NAME ; do case $ACTION in rmparts) emit rmparts "$NAME" ;; create) emitdm "$NAME" ;; part) emit dm partadd "$NAME" ;; esac done } if [ -z "$MNTIMAGE" -o -z "$IMAGE" ]; then error "Error creating temporaries. Try again" exit 1 fi if [ -n "$KDUMP_CONFIG_FILE" ]; then while read type location; do case "$type" in net) #grab remote host and xlate into numbers rhost=`echo $location | sed 's/.*@//' | cut -d':' -f1` USE_SSH=`echo $location | grep @` if [ -n "$USE_SSH" ]; then USING_METHOD="ssh" else USING_METHOD="nfs" fi need_dns=`echo $rhost|grep [a-zA-Z]` [ -n "$need_dns" ] && rhost=`host $rhost|cut -d' ' -f4` #find ethernet device used to route to remote host, ie eth0 netdev=`/sbin/ip route get to $rhost 2>&1` [ $? != 0 ] && echo "Bad kdump location: $location" && continue #the field in the ip output changes if we go to another subnet OFF_SUBNET=`echo $netdev | grep via` if [ -n "$OFF_SUBNET" ] then # we are going to a different subnet netdev=`echo $netdev|awk '{print $5;}'|head -n 1` else # we are on the same subnet netdev=`echo $netdev|awk '{print $3}'|head -n 1` fi #add the ethernet device to the list of modules mkdir -p $MNTIMAGE/etc/network/ handlenetdev $netdev echo $netdev >> $MNTIMAGE/etc/iface_to_activate #load nfs modules, if needed echo $location | grep -v "@" > /dev/null && findmodule nfs ;; raw) USING_METHOD="raw" ;; ifc) KDUMP_IFC=$location if [ -n "$network" ]; then network=`echo $network | sed -e's/\(^.* \)\('$netdev'\)\( .*$\)/\1 '$KDUMP_IFC' \3/'` fi ;; core_collector) if [ -x /sbin/makedumpfile ]; then CORE_COLLECTOR=$location CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e's/makedumpfile/makedumpfile -i \/etc\/makedumpfile.config/'` else echo "Cannot use the core_collector option on this arch" rm -rf $MNTIMAGE rm -rf $IMAGE exit 1 fi ;; *) USING_METHOD="local_fs" ;; esac done < $KDUMP_CONFIG_FILE fi if [ -n "$CORE_COLLECTOR" ]; then if [ "$USING_METHOD" == "ssh" ] || [ "$USING_METHOD" == "raw" ]; then echo "You may only use alternate core collectors with the NFS and Local Filesystem targets" rm -rf $MNTIMAGE rm -rf $IMAGE exit 1 fi fi #START BUILDING INITRD HERE mkdir -p $MNTIMAGE mkdir -p $MNTIMAGE/lib mkdir -p $MNTIMAGE/bin mkdir -p $MNTIMAGE/etc mkdir -p $MNTIMAGE/dev mkdir -p $MNTIMAGE/proc mkdir -p $MNTIMAGE/sys mkdir -p $MNTIMAGE/sysroot mkdir -p $MNTIMAGE/modules mkdir -p $MNTIMAGE/usr/share/udhcpc mkdir -p $MNTIMAGE/var/run mkdir -p $MNTIMAGE/etc/network/if-pre-up.d mkdir -p $MNTIMAGE/etc/network/if-up.d mkdir -p $MNTIMAGE/etc/network/if-pre-down.d mkdir -p $MNTIMAGE/etc/network/if-down.d mkdir -p $MNTIMAGE/etc/network/if-post-down.d ln -s bin $MNTIMAGE/sbin #if we are using makedumpfile here, then generate the config file if [ -n "$CORE_COLLECTOR" ]; then RUN_KERN_VER=`uname -r` /sbin/makedumpfile -g $MNTIMAGE/etc/makedumpfile.config -x /usr/lib/debug/lib/modules/$RUN_KERN_VER/vmlinux /boot/System.map-$RUN_KERN_VER if [ $? != 0 ]; then echo "could not generate makedumpfile configuration. aborting" rm -rf $MNTIMAGE rm -rf $IMAGE exit 1; fi fi #copy in busybox and make symlinks to its supported utilities cp /sbin/busybox $MNTIMAGE/sbin/busybox cd $MNTIMAGE/sbin for i in `/sbin/busybox | awk 'BEGIN {found=0} /.*/ { if (found) print $0 } /Currently/ {found=1}' | sed -e's/,//g' -e's/busybox//g'` do ln -s busybox $MNTIMAGE/sbin/$i done cd - > /dev/null 2>&1 #THIS IS WHERE WE GENERATE OUR ADDITINONAL UTILITIES #Busybox doesn't have a /bin/sh applet, #so we build a reasonable faximilie here cat >> $MNTIMAGE/bin/sh << EOF #!/bin/msh #drop the -c from the command line shift 1 #now execute the passed command #don't exec this or $@ won't work /bin/msh -c "\$@" EOF chmod 755 $MNTIMAGE/bin/sh cat >> $MNTIMAGE/usr/share/udhcpc/default.script << EOF #!/bin/msh [ -z "\$1" ] && echo "Error: should be called from udhcpc" && exit 1 case "\$1" in deconfig) /sbin/ifconfig \$interface 0.0.0.0 ;; renew|bound) /sbin/ifconfig \$interface \$ip netmask \$subnet if [ -n "\$router" ] ; then echo "deleting routers" while route del default gw 0.0.0.0 dev \$interface ; do : done for i in \$router ; do route add default gw \$i dev \$interface done fi echo -n > /etc/resolv.conf [ -n "\$domain" ] && echo search $domain >> /etc/resolv.conf for i in \$dns ; do echo adding dns \$i echo nameserver \$i >> /etc/resolv.conf done ;; esac exit 0 EOF #NETWORKING SCRIPT DIRECTORIES cat >> $MNTIMAGE/etc/network/if-pre-up.d/pre-up-script << EOF #!/bin/msh ifconfig \$IFACE up exit 0 EOF for i in `ls $MNTIMAGE/etc/network/if-pre-up.d` do chmod 755 $MNTIMAGE/etc/network/if-pre-up.d/$i done cat >> $MNTIMAGE/etc/network/if-up.d/up-script << EOF #!/bin/msh if [ "\$METHOD" != "dhcp" ] then . /etc/ifcfg-\$IFACE ifconfig \$IFACE \$IPADDR netmask \$NETMASK route add default gw \$GATEWAY dev \$IFACE fi exit 0 EOF for i in `ls $MNTIMAGE/etc/network/if-up.d` do chmod 755 $MNTIMAGE/etc/network/if-up.d/$i done chmod 755 $MNTIMAGE/usr/share/udhcpc/default.script # WE DONT HAVE FUNCTIONS AVAILABLE IN MSH # SO WE IMPLEMENT THEM HERE AS scripts SCRIPTDIR=$MNTIMAGE/scriptfns mkdir -p $SCRIPTDIR cat >> $SCRIPTDIR/rename_interfaces << EOF #!/bin/msh TMPCNT=0 #erase previously recorded map rm -f /etc/iface_map for i in \`ls /etc/ifcfg-*\` do RENAMED="" REAL_DEV="" NETDEV=\`echo \$i | cut -d"-" -f2\` for j in \`ifconfig -a | awk '/.*Link encap.*/ {print \$1}'\` do . /etc/ifcfg-\$NETDEV case "\$BUS_ID" in Bonding) #do something for bonding ;; Vlan) #do something for vlan ;; *) INFO=\`ethtool -i \$j | grep bus-info\` if [ "\$INFO" == "\$BUS_ID" -a -z "\$REAL_DEV" ] then REAL_DEV=\$j RENAMED="yes" fi ;; esac done if [ -z "\$RENAMED" ] then echo "Could not find a mapping for device \$NETDEV" exit 1 fi #build the interface rename map echo \$NETDEV \$REAL_DEV tmp\$TMPCNT>> /etc/iface_map TMPCNT=\`echo \$TMPCNT 1 + p | dc\` echo mapping \$NETDEV to \$REAL_DEV done MAP_COUNT=\`wc -l /etc/iface_map | cut -d" " -f7 \` #now do all the renaming - first to temp space for j in \`seq 1 1 \$MAP_COUNT\` do CURRENT=\`awk '{if (RN == ARGV[j]) print \$1}' /etc/iface_map\` NEW=\`awk '{if (RN == ARGV[j]) print \$2}' /etc/iface_map\` INTERIM=\`awk '{if (RN == ARGV[j]) print \$3}' /etc/iface_map\` mv /etc/ifcfg-\$CURRENT /etc/ifcfg-\$INTERIM for i in /etc/ifcfg-\$INTERIM /etc/iface_to_activate /etc/network/interfaces do # the double quotes lets us expand the variables sed -e"s/\$CURRENT/\$INTERIM/g" \$i > \$i.tmp mv \$i.tmp \$i done done for j in \`seq 1 1 \$MAP_COUNT\` do CURRENT=\`awk '{if (RN == ARGV[j]) print \$1}' /etc/iface_map\` NEW=\`awk '{if (RN == ARGV[j]) print \$2}' /etc/iface_map\` INTERIM=\`awk '{if (RN == ARGV[j]) print \$3}' /etc/iface_map\` mv /etc/ifcfg-\$INTERIM /etc/ifcfg-\$NEW for i in /etc/ifcfg-\$NEW /etc/iface_to_activate /etc/network/interfaces do # the double quotes lets us expand the variables sed -e"s/\$INTERIM/\$NEW/g" \$i > \$i.tmp mv \$i.tmp \$i done done < /etc/iface_map exit 0 EOF #DONT ADD STUFF to SCRIPTDIR PAST HERE for i in `ls $SCRIPTDIR/*` do chmod 755 $i done if [ -e /etc/fstab.sys ]; then inst /etc/fstab.sys "$MNTIMAGE/etc/fstab.sys" fi #build a good passwd file cat >> $MNTIMAGE/etc/passwd << EOF root:x:0:0:root:/root:/bin/bash EOF for MODULE in $MODULES; do if [ -x /usr/bin/strip ]; then /usr/bin/strip -g $verbose $MODULE -o $MNTIMAGE/lib/$(basename $MODULE) else cp $verbose -a $MODULE $MNTIMAGE/lib fi done # mknod'ing the devices instead of copying them works both with and # without devfs... mkdir $MNTIMAGE/dev/mapper mknod $MNTIMAGE/dev/ram0 b 1 0 mknod $MNTIMAGE/dev/ram1 b 1 1 ln -sf ram1 $MNTIMAGE/dev/ram mknod $MNTIMAGE/dev/null c 1 3 mknod $MNTIMAGE/dev/zero c 1 5 mknod $MNTIMAGE/dev/systty c 4 0 for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 ; do mknod $MNTIMAGE/dev/tty$i c 4 $i done for i in 0 1 2 3 ; do mknod $MNTIMAGE/dev/ttyS$i c 4 $(($i + 64)) done mknod $MNTIMAGE/dev/tty c 5 0 mknod $MNTIMAGE/dev/console c 5 1 mknod $MNTIMAGE/dev/ptmx c 5 2 mknod $MNTIMAGE/dev/rtc c 10 135 if [ "$(uname -m)" == "ia64" ]; then mknod $MNTIMAGE/dev/efirtc c 10 136 fi # FIXME -- this can really go poorly with clvm or duplicate vg names. # nash should do lvm probing for us and write its own configs. if [ -n "$vg_list" ]; then inst /sbin/lvm.static "$MNTIMAGE/bin/lvm" if [ -f /etc/lvm/lvm.conf ]; then cp $verbose --parents /etc/lvm/lvm.conf $MNTIMAGE/ fi fi echo -n >| $RCFILE cat >> $MNTIMAGE/init << EOF #!/bin/msh export PATH=$PATH:/scriptfns mount -t proc /proc /proc setquiet echo Mounting proc filesystem echo Mounting sysfs filesystem mount -t sysfs /sys /sys echo Creating /dev mount -o mode=0755 -t tmpfs /dev /dev mkdir /dev/pts mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts mkdir /dev/shm mkdir /dev/mapper echo Creating initial device nodes mknod /dev/null c 1 3 mknod /dev/zero c 1 5 mknod /dev/systty c 4 0 mknod /dev/tty c 5 0 mknod /dev/console c 5 1 mknod /dev/ptmx c 5 2 mknod /dev/rtc c 10 135 mknod /dev/urandom c 1 9 EOF if [ "$(uname -m)" == "ia64" ]; then emit "mknod $MNTIMAGE/dev/efirtc c 10 136" fi # XXX really we need to openvt too, in case someting changes the # color palette and then changes vts on fbcon before gettys start. # (yay, fbcon bugs!) for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 ; do emit "mknod /dev/tty$i c 4 $i" done for i in 0 1 2 3 ; do emit "mknod /dev/ttyS$i c 4 $(($i + 64))" done emit "mknod /dev/mem c 1 1" for MODULE in $MODULES; do text="" module=`echo $MODULE | sed "s|.*/||" | sed "s/.k\?o$//"` fullmodule=`echo $MODULE | sed "s|.*/||"` options=`sed -n -e "s/^options[ ][ ]*$module[ ][ ]*//p" $modulefile 2>/dev/null` if [ -n "$options" ]; then vecho "Adding module $module$text with options $options" else vecho "Adding module $module$text" fi emit "echo \"Loading $fullmodule module\"" emit "insmod /lib/$fullmodule $options" # Hack - we need a delay after loading usb-storage to give things # time to settle down before we start looking a block devices if [ "$module" = "usb-storage" ]; then emit "echo Waiting 8 seconds for driver initialization." emit "sleep 8" fi if [ "$module" = "zfcp" -a -f /etc/zfcp.conf ]; then emit "echo Waiting 2 seconds for driver initialization." emit "sleep 2" cat /etc/zfcp.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE SCSIID WWPN SCSILUN FCPLUN; do cemit < /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add echo -n $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/$WWPN/unit_add echo -n 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online EOF done fi done # HACK: module loading + device creation isn't necessarily synchronous... # this will make sure that we have all of our devices before trying # things like RAID or LVM emit "echo Creating Block Devices" emit "for i in \`ls /sys/block\`; do" emit " MAJOR_NUM=\`cat /sys/block/\$i/dev | cut -d":" -f1\`" emit " MINOR_NUM=\`cat /sys/block/\$i/dev | cut -d":" -f2\`" emit " echo Creating block device \$i" emit " mknod /dev/\$i b \$MAJOR_NUM \$MINOR_NUM" emit " MINOR_END=\`echo \$MINOR_NUM 10 + p | dc\`" emit " MINOR_START=\`echo \$MINOR_NUM 1 + p | dc\`" emit " for j in \`seq \$MINOR_START 1 \$MINOR_END\`" emit " do" emit " if [ ! -e /dev/\$i\$j ]" emit " then" emit " mknod /dev/\$i\$j b \$MAJOR_NUM \$j" emit " fi" emit " done" emit "done" if [ -n "$vg_list" ]; then emit "echo Making device-mapper control node" emit "DM_MAJ=\`cat /proc/devices | grep misc | cut -d\" \" -f2\`" emit "DM_MIN=\`cat /proc/misc | grep device-mapper | cut -d\" \" -f2\`" emit "mknod /dev/mapper/control b \$DM_MAJ \$DM_MIN" fi if [ -n "$net_list" ]; then for netdev in $net_list; do emit "echo Bringing up $netdev" handle_netdev $netdev #emit $network done fi emitdms if [ -n "$raiddevices" ]; then for dev in $raiddevices; do cp -a /dev/${dev} $MNTIMAGE/dev emit "\#need code here to set up md devs" done fi if [ -n "$vg_list" ]; then emit "echo Scanning logical volumes" emit "lvm vgscan --ignorelockingfailure --mknodes" emit "echo Activating logical volumes" emit "lvm vgchange -a y --ignorelockingfailure" emit "DM_NUM=0" emit "for i in \`lvm lvs | awk '{ if (NR > 1) print \$1}'\`" emit "do" emit " VGRP=\`lvm lvs | grep \$i | cut -d\" \" -f4\`" emit " mkdir -p /dev/\$VGRP" emit " if [ ! -e /dev/\$VGRP/\$i ]" emit " then" emit " ln -s /dev/mapper/\$VGRP-\$i /dev/\$VGRP/\$i" emit " ln -s /dev/mapper/\$VGRP-\$i /dev/dm-\$DM_NUM" emit " DM_NUM=\`echo \$DM_NUM 1 + p | dc\`" emit " if [ -z \"\$noresume\" ]" emit " then" emit " /sbin/dmsetup resume /dev/mapper/\$VGRP-\$i" emit " fi" emit " fi" emit "done" fi kdump_chk() { rc=`eval $1` && return $rc echo "$KDUMP_CONFIG_FILE: $2" exit 1 } emit "DATE=\`date +%Y-%M-%d-%T\`" if [ -n "$KDUMP_CONFIG_FILE" ]; then memtotal=`cat /proc/meminfo | grep MemTotal | awk '{print $2}'` #timezone info for date which outputs YYYY-MM-DD-hh:mm cp /etc/localtime $MNTIMAGE/etc/localtime bin="/sbin/dmsetup /usr/bin/scp /usr/bin/ssh /sbin/ethtool /sbin/mdadm" #ssh, scp require libraries that aren't found with ldd lib=/lib && [ -d "/lib64" ] && lib=/lib64 k_extras="/$lib/libnss_compat.so.2 /$lib/libnss_files.so.2" #traverse the config file and setup each dump location while read type location; do [ -z "$type" ] && continue #skip empty lines [ "`echo $type| grep ^# `" ] && continue #skip comments kdump_chk "test -n \"$location\"" "Need a location for $type" case "$type" in \#*) continue;; #skip comments raw) #test raw partition kdump_chk "dd if=$location count=1 of=/dev/null > /dev/null 2>&1" \ "Bad raw partition $location" #TODO check for available size is greater than $memtotal #setup raw case emit "echo Saving to partition $location" emit "dd if=/proc/vmcore of=$location" emit "cond reboot -h -f" ;; net) if [ -n "$CORE_COLLECTOR" ]; then bin="$bin /sbin/makedumpfile" fi #build an /etc/passwd for scp to work properly grep "^root" /etc/passwd > $MNTIMAGE/etc/passwd # bring up the network emit "rename_interfaces" emit "IFACE=\`cat /etc/iface_to_activate\`" emit "ifup \$IFACE" #grab remote host and xlate into numbers rhost=`echo $location | sed 's/.*@//' | cut -d':' -f1` need_dns=`echo $rhost|grep [a-zA-Z]` [ -n "$need_dns" ] && rhost=`host $rhost|cut -d' ' -f4` #find the local ip being used as a route to remote ip netdev=`/sbin/ip route get to $rhost 2>&1` [ $? != 0 ] && echo "Bad kdump location: $location" && continue lhost=`echo $netdev|awk '{print $5;}'|head -n 1` emit "echo Saving to remote location $location" if [ -z "`echo $location|grep @`" ]; then #NFS path #test nfs mount and directory creation rlocation=`echo $location| sed 's/.*:/'"$rhost"':/'` tmnt=`mktemp -dq` kdump_chk "mount -t nfs -o nolock $rlocation $tmnt" \ "Bad NFS mount $location" mkdir -p $tmnt/var/crash tdir=`mktemp -dqp $tmnt/var/crash` rc=$? && rm -rf $tdir && umount $tmnt && rm -rf $tmnt if [ $rc != "0" ]; then echo "Cannot create directory in $location: var/crash" exit 1 fi if [ -z "$CORE_COLLECTOR" ]; then CORE_COLLECTOR="cp" fi #TODO check for available size is greater than $memtotal #setup nfs case mkdir -p $MNTIMAGE/mnt emit "mount -t nfs -o nolock $rlocation /mnt" emit "mkdir -p /mnt/var/crash/$lhost-\$DATE" emit "$CORE_COLLECTOR /proc/vmcore /mnt/var/crash/$lhost-\$DATE/vmcore" emit "if [ \$? == 0 ]" emit "then" emit " reboot -f" emit "fi" emit "umount /mnt" else #SSH path #rebuild $location replacing machine name with ip address rlocation=`echo $location|sed 's/@.*/@'"$rhost"'/'` #test ssh path and directory creation s_opts="-o BatchMode=yes -o StrictHostKeyChecking=no" kdump_chk "ssh -q $s_opts $rlocation mkdir -p /var/crash/ /dev/null | tr -s '\011' ' ' | sed 's/.*=> *//;s/^ *//;/ *(0x.*)/s///p;d' done | sort | uniq | sed '/^ *$/d'` #copy the binaries and their shared libraries to the archive for n in $bin $kdump_libs $k_extras; do mkdir -p $MNTIMAGE/`dirname $n` cp $n $MNTIMAGE/$n done fi emit "echo Creating root device." emit "#check to see if we have root= on the command line" emit "ROOTDEV=\`cat /proc/cmdline | grep root=\`" emit "if [ -n \"\$ROOTDEV\" ]" emit "then" emit " ROOTDEV=\`cat /proc/cmdline | cut -d\" \" -f2 | sed -e's/root=//'\`" emit "else" emit " #we need to get the root major/minor from real-root-dev" emit " ROOT_DEV_NR=\`cat /proc/sys/kernel/real-root-dev\`" emit " ROOT_MIN=\`echo \$ROOT_DEV_NR | sed -e's/\\([0-9a-f]\\{1,2\\}\\)\\([0-9a-f]\\{2\\}\\)/\\2/'\`" emit " ROOT_MAJ=\`echo \$ROOT_DEV_NR | sed -e's/\\([0-9a-f]\\{1,2\\}\\)\\([0-9a-f]\\{2\\}\\)/\\1/'\`" emit " mknod /dev/rootdev b 0x\$ROOT_MAJ 0x\$ROOT_MIN" emit " ROOTDEV=/dev/rootdev" emit "fi" emit "echo Checking root filesystem." emit "fsck \$ROOTDEV" emit "echo Mounting root filesystem." emit "FSTYPE=\`fsck -N \$ROOTDEV | awk '/.*sbin.*/ {print \$1}' | sed -e's/\\(^.*\\.\\)\\(.*\\)/\\2/'\`" emit "fsck -t \$FSTYPE \$ROOTDEV" emit "echo mount -t \$FSTYPE \$ROOTDEV /sysroot" emit "mount -t \$FSTYPE \$ROOTDEV /sysroot" emit "if [ \$? != 0 ]" emit "then" emit " echo unable to mount rootfs. Dropping to shell" emit " /bin/msh" emit "fi" emit "#move various filesystems and prime the rootfs to boot properly" emit "umount /proc" emit "mount -t proc proc /sysroot/proc" emit "umount /sys" emit "mount -t sysfs sysfs /sysroot/sys" emit "mount -o bind /dev /sysroot/dev" emit "touch /sysroot/fastboot" emit "echo Switching to new root and running init." emit "exec switch_root /sysroot /sbin/init" chmod +x $RCFILE (cd $MNTIMAGE; findall . | cpio --quiet -c -o) >| $IMAGE || exit 1 if [ -n "$compress" ]; then gzip -9 < $IMAGE >| $target || rc=1 else cp -a $IMAGE $target || rc=1 fi rm -rf $MNTIMAGE $IMAGE if [ -n "$MNTPOINT" ]; then rm -rf $MNTPOINT ; fi exit $rc