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Diffstat (limited to 'src/initramfs/stage3-stuff/init')
| -rwxr-xr-x | src/initramfs/stage3-stuff/init | 1030 |
1 files changed, 1030 insertions, 0 deletions
diff --git a/src/initramfs/stage3-stuff/init b/src/initramfs/stage3-stuff/init new file mode 100755 index 00000000..3f97dba0 --- /dev/null +++ b/src/initramfs/stage3-stuff/init @@ -0,0 +1,1030 @@ +#!/bin/sh +# Copyright (c) 2003..2006 - RZ Uni Freiburg +# Copyright (c) 2006..2010 - OpenSLX GmbH +# +# This program is free software distributed under the GPL version 2. +# See http://openslx.org/COPYING +# +# If you have any feedback please consult http://openslx.org/feedback and +# send your feedback to feedback@openslx.org +# +# General information about OpenSLX can be found at http://openslx.org +# +# Main script for initial ramfs for OpenSLX linux stateless clients +############################################################################# + +# fixme: the primary init script should never fail, so move all critical code +# into sub script calls (see ticket 259) + +export PATH=/bin:/sbin:/usr/bin/:/usr/sbin + +# device files get their own filesystem (to be move mounted later) +devdir="/dev" +mount -n -t tmpfs -o 'size=25%,mode=0755' initramfsdevs ${devdir} + +# mount the important standard directories +[ ! -f /proc/cpuinfo ] && mount -n -t proc proc /proc +[ ! -d /sys/class ] && mount -n -t sysfs sysfs /sys + +# create basic device files an directories (in dev - for most hardware related +# devices mdev should handle that) +for i in "/dev/mem c 1 1" "/dev/null c 1 3" "/dev/zero c 1 5" \ + "/dev/urandom c 1 9" "/dev/kmsg c 1 11" "/dev/tty0 c 4 0" \ + "/dev/tty1 c 4 1" "/dev/tty2 c 4 2" "/dev/tty3 c 4 3" \ + "/dev/tty4 c 4 4" "/dev/tty5 c 4 5" "/dev/tty6 c 4 6" \ + "/dev/tty7 c 4 7" "/dev/tty8 c 4 8" "/dev/tty9 c 4 9" \ + "/dev/tty10 c 4 10" "/dev/tty c 5 0" "/dev/console c 5 1" \ + "/dev/ptmx c 5 2" "/dev/psaux c 10 1" "/dev/agpgart c 10 175" \ + "/dev/fb0 c 29 0" "/dev/xconsole p"; do + mknod $i +done +mkdir -p ${devdir}/pts ${devdir}/shm ${devdir}/.udevdb ${devdir}/.udev \ + ${devdir}/.initramfs /var/log +# create some standard links (expected?) in /dev +ln -s /proc/kcore /dev/core +ln -s /proc/self/fd /dev/fd +ln -s /proc/self/fd/0 /dev/stdin +ln -s /proc/self/fd/1 /dev/stdout +ln -s /proc/self/fd/2 /dev/stderr + +# redirect kernel messages to tty10 instead of the standard console +getty -i -n -l /bin/cat 38400 tty10 & +setlogcons 10 + +# start device auto discovery/setup service of busybox +echo >/etc/mdev.conf +mdev -s + +# source functions file common for all distros, messages contains all error +# and info output (for some reason the error output is not produced properly +# - crash) + +# how do the localization here? There is not yet a country-Variable +. /etc/messages +. /etc/functions || ( echo -e $init_mff && sleep 100 ) +. /etc/distro-functions || ( echo -e $init_dff && sleep 100 ) + +# configuration settings for this slx system's environment +. /etc/slxsystem.conf 2>/dev/null || ( echo -e ${init_sscf} && \ + sleep 100 ) +# initramfs-setup configuration (common initial settings for all clients using +# a certain InitRamFS generated by slxconfig-demuxer) +[ -f /etc/initramfs-setup ] && . /etc/initramfs-setup 2>/dev/null + +export date="${slxconf_date}" + +export DEBUGLEVEL=0 +export KERNEL="${slxconf_kernver}" +export NWMODULES="${slxconf_listnwmod}" +export DISTRO_NAME="${slxconf_distro_name}" +export DISTRO_VER="${slxconf_distro_ver}" +export SYSTEM_NAME="${slxconf_system_name}" +export SLXVERSION="${slxconf_slxver}" + +# do not use dnbd cache file +nodnbdcache="yes" + +# set a default LAN interface, might be modified for WLAN, bridge setups or +# on machines with more than one ethernet card built in +export nwif="eth0" + +# load usb modules for keyboard (reenable usb keyboards, otherwise the +# admin has to wait until second run of hwsetup late in stage3) and the +# network adaptor modules, search for pci modules to load later on +hwautocfg base + +# if no kernel version is set, try to get it directly from /proc +if [ -z $KERNEL ] ; then + KERNEL=$(cat /proc/version) + KERNEL=${KERNEL#*version } + KERNEL=${KERNEL% (*) (*} +fi + +# set defaults for some important variables, might be overwritten via +# kernel commandline +tmpfssize="$(expr $(grep -i "memtotal" /proc/meminfo | awk '{print $2}') \ + / 100 \* 75 - 128000)k" # in kbyte +cowsize="50%" +rwdir=/dev/shm +nfsro="nfs" +aufs=1 +unionfs=1 + +runinithook '00-started' + +# run pre init script and user defined preinit.local, copied by mkdxsinitrd +# from /var/lib/openslx/config/... in stage2 +preinit +[ -x /bin/preinit.local ] && /bin/preinit.local + + +# switch off the several configuration methods, will be switched on +# according to kernel commandline settings +echo "noldap" > /tmp/ldap-done + +# external configuration file retrieval (per tftp) must be done, as otherwise +# we will never get the initramfs-setup file. By default, we try a predefined +# standard path (.../tftpboot/client-config/ ...) +file="yes" + +# read kernel commandline +read KCMDLINE < /proc/cmdline +export KCMDLINE +# read the system wide initramfs-setup and then the kernel commandline +for opts in $(sed "s/#.*//" /etc/initramfs-setup) ${KCMDLINE} ; do + case ${opts} in + # shut down pc + shutdown) + cat <<EOL + + SHUTTING DOWN PC! + +EOL + echo "o" >/proc/sysrq-trigger + ;; + # from IPAPPEND + BOOTIF=*) + bootmac=$(echo ${opts} | sed "s/.*=01-//;s/-/:/g") + ;; + # localization + country=*) + COUNTRY=${opts#country=} + grep -q -E "country=" /etc/initramfs-setup && + echo -e "\n# localization information gotten via kernel command line \ +in $0\ncountry=\"${COUNTRY}\"" >>/etc/initramfs-setup + ;; + # single token for debugging ... + debug) + DEBUGLEVEL=1 + ;; + # ... or a specified debug level + debug=*) + DEBUGLEVEL=${opts#debug=} + if [ $DEBUGLEVEL -eq 8 -o $DEBUGLEVEL -eq 20 ] ; then + echo "** SLX init started near $(sysup)" + elif [ $DEBUGLEVEL -ge 3 -a $DEBUGLEVEL -le 20 ] ; then + # create, start a debug shell process + echo "Debug shell started on second console (tty2)" + echo -e "#!/bin/sh\nsh" >/bin/debugshell + chmod u+x /bin/debugshell + getty -i -n -l /bin/debugshell 38400 tty2 & + # start logging (debuglevel >=3) + # fixme: SuSE hangs in Creating /var/log/boot.msg if activated + echo "Syslogd started on third console (tty3)" + # just to have some name in syslog + echo "(slx init)" >/proc/sys/kernel/hostname + syslogd -C2048 + klogd + logread -f > /dev/tty3 2>/dev/null & + logread -f >> /var/log/messages 2>/dev/null & + fi + ;; + # if configuration should not be gathered by dhcp client + nodhcp) + nodhcp="yes" + echo "nodhcp" >/tmp/dhcp-done + ;; + nofile) + unset file + echo "nofile" >/tmp/file-done + ;; + # if ldap configuration should be triggered + ldap) + ldap="yes" + rm /tmp/ldap-done + ;; + # ldap configuration with host and port to contact (base) + ldap=*) + ldap="yes" + rm /tmp/ldap-done + ;; + # file source with tftp server and file location on the server + file=*|file) + if [ "${opts}" != "file" ] ; then + fileprot=$(uri_token ${opts#file=} prot) + fileserv=$(uri_token ${opts#file=} server) + filepath=$(uri_token ${opts#file=} path) + fi + ;; + # if ld.so.cache should be generated; should be switched on when composing + # rootfs from more than one source + ldsc) + ldsc="yes";; + # simple union of base ro rootdir with tempfs on top + nounionfs) + unionfs=0;; + # additional source to unify root filesystem with; the top layer will be + # the tempfs + unionfs=*) + unionfs=1 + uniondirs=${opts#unionfs=} + # most probably it is a good idea to run ldconfig, so enable it + ldsc="yes" + ;; + # same for AUFS; alternative to unionfs + noaufs) + aufs=0;; + aufs=*) + aufs=1 + uniondirs=${opts#aufs=} + # most probably it is a good idea to run ldconfig, so enable it + ldsc="yes" + ;; + # if cowloop should be used, only ontop of network block device and in + # combination with classical fs, like ext2 useful + cowloop=*) + cowloop=1 + #cowsize=${opts#cowloop=} + ;; + # rootfs will void the variables (d)nbdroot, nfsroot ... + # fixme: allow multiple rootfs sources to be unioned!? + # if strinstr " " "$rootfs" ... + rootfs=*) + rootfs=${opts#rootfs=} + rootfs=${rootfs#\"} + rootfs=${rootfs%%\"} + srvproto=$(uri_token $rootfs prot) + case $srvproto in + nfs) + # nfsroot consists of two components + nfspath=$(uri_token $rootfs path) + nfsserver=$(uri_token $rootfs server) + grep -q -E "nfsserver" /etc/initramfs-setup || \ + echo -e "# nfs root information gotten via kernel command \ +line in $0\nnfsserver=\"${nfsserver}\"\nnfspath=\"${nfspath}\"" \ + >>/etc/initramfs-setup + ;; + *nbd*) + bldmod=$srvproto + # get settings for nbd-client, filesystem equals to path in URI + # notation (remove leading slash from filesystem at the end) + bldhost=$(uri_token $rootfs server) + bldport=$(uri_token $rootfs port) + bldrfst=$(uri_token $rootfs path) + bldrfst=${bldrfst#/*} + ;; + aoe) + echo "Not implemented yet" + bldmod= + ;; + iscsi) + echo "Not implemented yet" + bldmod= + #iscsiserver=$(uri_token $rootfs server) + #iscsiport=$(uri_token $rootfs port) + #iscsitarget=$(uri_token $rootfs path) + ;; + lbd) + # use a local device for mounting root block device with given + # filesystem directly or a root filesystem container from another + # filesystem, e.g. rootfs=lbd://sda1/squashfs (bldmod cannot be + # empty, use loop or the real device stuff) + bldmod=loop + blddev=$(uri_token $rootfs server) + bldfst=$(uri_token $rootfs path) + bldfst=${bldfst#/*} + ;; + esac + ;; + # size of cache dnbd should use within ram + dcsize=*) + dnbdcachesize=${opts#dcsize=};; + # ip configuration client-ip:server-ip:gateway:netmask + ip=*) + ipinfo=${opts#ip=};; + # deprecated: nfs server and path (rewritten to standard style) + nfsroot=*) + srvproto=nfs + nfsroot=${opts#nfsroot=} + nfspath=${nfsroot#*:} + nfsserver=${nfsroot%:/*} + grep -q -E "nfsserver" /etc/initramfs-setup || \ + echo -e "\n# nfs root information gotten via kernel command line \n\ +in $0\n# deprecated: please use rootfs=nfs://...\nnfsserver=\"${nfsserver}\"\ +\nnfspath=\"${nfspath}\"">> /etc/initramfs-setup + ;; + # size of tempfs if not max. 50% of RAM should be used + tmpfssize=*) + tmpfssize=${opts#tmpfssize=};; + # vendor code identifier for dhcp requests, that way OpenSLX clients could + # be distinguished from other (dhcp) clients + vci=*) + vci=${opts#vci=};; + # option for ddcinfo + ddcinfo=*) + ddcinfo=${opts#ddcinfo=};; + esac +done + +runinithook '05-have-kernelvars' + +# at this point a timer should be started to ensure an automated reboot +# or halt of the machine if SLX init does not succeed (e.g. missing kernel +# module for the network adaptor) +if [ ${DEBUGLEVEL} -lt 3 -o ${DEBUGLEVEL} = 8 ] ; then + cat<<EOF > /bin/watchdog +#!/bin/sh +echo \$$ > /tmp/watchdogpid +[ ! -f /proc/version ] && mount -n -t proc proc /proc +sleep 120 2> /dev/null +echo "o" > /proc/sysrq-trigger +EOF + chmod u+x /bin/watchdog + watchdog & +fi + +# check if at least one type of IP configuration is availabe +if [ -n "$nodhcp" -a -z "$ldap" -a -z "$ipinfo" -a $srvproto != "lbd" ] + then echo -e "# You did not specify any advanced configuration mode for \ +your clients. You\n# might want to add the token 'dhcp' for DHCP config, \ +'file(=source)'\n# for config file get via TFTP or 'ldap(=source)' for LDAP \ +configuration to\n# your kernel command line." >> /etc/initramfs-setup + if strinfile "clientip" /etc/initramfs-setup ; then + # IP configuration seems to be present in initramfs-setup file + # TODO: FIX this, as it will clobber all kernel-cmdline values! + . /etc/initramfs-setup + ipinfo="ip=$clientip:$serverip:$gateway:$subnet_mask" + else + error "$init_errip" + fi +fi + +# for ldap configuration at least basic IP setup is needed to contact the +# server +[ -n "$nodhcp" -a -n "$ldap" -a -z "$ipinfo" ] && error "$init_errldap" +# set debug level and logfile +if [ $DEBUGLEVEL -eq 20 ] ; then + echo "** Setting debuglevel to ${DEBUGLEVEL} at $(sysup)" +elif [ $DEBUGLEVEL -ne 0 ] ; then + echo "Setting debuglevel to ${DEBUGLEVEL}" +fi +export MODPRV=" " +export LOGFILE +if [ "${DEBUGLEVEL}" -gt 0 -a "${DEBUGLEVEL}" != 8 ] ; then + # set LOGFILE and move it later on into stage4 + LOGFILE="/var/log/slx-boot.log" + echo "Starting OpenSLX client boot logging at $(date)" >$LOGFILE + echo "1 4 1 7" >/proc/sys/kernel/printk + [ "${DEBUGLEVEL}" -ge 2 ] && MODPRV="-v" + [ "${DEBUGLEVEL}" -gt 3 -a "${DEBUGLEVEL}" -le 10 ] && { + set -x + # and the kernel too + echo "7 7 7 7" >/proc/sys/kernel/printk; } + [ "${DEBUGLEVEL}" -gt 10 -a "${DEBUGLEVEL}" -le 20 ] && set +x +else + # switch off most of kernel debug output + echo "0 0 0 0" >/proc/sys/kernel/printk + # modprobe should stay quiet + MODPRV="-q" + LOGFILE="/dev/null" +fi + +runinithook '10-nw-if-config' + +# check for multiple ethernet interfaces (we have at least the mac of PXE boot +# device in $bootmac) +# check here for the active ethernet link (skip non-ethN interfaces) +if strinstr "eth" "$nwif" ; then + for ethif in eth0 eth1 eth2 eth3 ; do + export macaddr=$(ip link show dev $ethif 2>/dev/null | \ + grep -i link.ether | awk '{print $2}') + # if there is no bootmac present in kernel commandline any checks are + # useless + if [ -z "$bootmac" ] ; then + bootmac="$macaddr" + [ "$ethif" != "eth0" ] && error "$init_bootmac" nonfatal + fi + if [ "$macaddr" = "$bootmac" ] ; then + nwif=$ethif + break + elif [ "x$macaddr" = "x" ] ; then + # if the macaddr is empty on the first interface tried, there is no + # network adaptor visible (missing kernel module) + if [ "$ethif" = "eth0" ] ; then + error "$init_errnwad" + else + # assume a forcedeth problem here (nonmatching MACs) + macaddr=${bootmac} + fi + break + fi + done +fi +# quickfix for proper nwif passing ... (to be fixed in a more general way) +sed "s/nwif=.*/nwif=\"${nwif}\"/" -i /tmp/env/wrapper.env +# hook to setup bridging (several virtualization tools ... +runinithook '20-nw-bridge-config' + +# set up loopback networking +[ $DEBUGLEVEL -eq 20 ] && echo "** starting ip config at $(sysup)" +ip link set dev lo up 2>/dev/null +ip addr add 127.0.0.1/8 dev lo 2>/dev/null +ip link set dev $nwif up 2>/dev/null || error "$init_noeth" + +# analyze ip information from the kernel command line and put parts +# of it into several variables +if [ -n "$ipinfo" ] ; then + getip () { + local val="$ipinfo:"; i=$(($1 - 1)); + while [ $i -gt 0 ] ; do + val=${val#*:} ; i=$(($i - 1)); + done; + echo $val|sed "s/:.*//"; } + clientip=$(getip 1) + serverip=$(getip 2) + gateway=$(getip 3) + subnet_mask=$(getip 4) + broadcast_address=$(ipcalc -s -b $clientip $subnet_mask|sed s/.*=//) + [ -z "$broadcast_address" ] && broadcast_address=255.255.255.255 + # we might have an idea of the dns server via preboot + dns_srv=$(getip 5) + [ -n "$dns_srv" ] && echo nameserver $dns_srv >/etc/resolv.conf; + echo -e "# ip configuration written by $0 script:\nclientip=$clientip\n\ +subnet_mask=$subnet_mask\ngateway=$gateway\nserverip=$serverip\n\ +broadcast_address=$broadcast_address" >>/etc/initramfs-setup + # set static ip address + ip addr add $clientip/$(ipcalc -s -p $clientip $subnet_mask|sed s/.*=//) \ + broadcast $broadcast_address dev $nwif 2>/dev/null + ip route add default via $gateway 2>/dev/null +else + noipyet="yes" +fi +# get configuration data via dhcp (with vendor code identifier if present +# in ${vci} from kernel command line or initramfs-setup) ... +if [ -z "$nodhcp" ] ; then + ( rundhcp ${vci}; echo "dhcp finished at $(sysup)" >/tmp/dhcp-done ) & + if [ -n "$noipyet" ] ; then + waitfor /tmp/dhcp-done 20000 + . /tmp/confviadhcp + # by now there should be a proper ip configuration present + if [ -z "$clientip" -o -z "$subnet_mask" -o -z "$broadcast_address" ] + then error "$init_errdhcp" + else + { ip addr add \ + $clientip/$(ipcalc -s -p $clientip $subnet_mask|sed s/.*=//) \ + broadcast $broadcast_address dev $nwif 2>/dev/null || \ + error "$init_erripcfg"; } + # if gateway is available set it + [ -n $gateway ] && ip route add default via $gateway 2>/dev/null + fi + # fixme: to be checked!! + # else + # if [ -n "$file" -a "$srvproto" = "lbd" ] ; then + # error "$init_erripcfg" nonfatal + # else + # error "$init_erripcfg" + # fi + # fi + fi +fi +# check if serverip is set as variable @@@serverip@@@ +sed "s,@@@serverip@@@,$serverip," -i /etc/initramfs-setup +[ $DEBUGLEVEL -eq 20 ] && echo "** finished ip config at $(sysup)" + +# on some network adaptors we need to wait for the link to come up +dmesg | grep -q "link down" && for i in 1 1 1 1 ; do + dmesg | grep -q "link up" && break + [ $DEBUGLEVEL -ge 1 ] && echo "network: waited half a second for the \ +link to come up" >>$LOGFILE + sleep $i +done +# ... or ldap if available (in background) +[ -n "$ldap" ] && ldapconf & +# ... or via (t)ftp/http file get (in background) +[ -n "$file" ] && fileget & + +runinithook '25-have-ip-config' + +# if root filesystem should be imported via local or a network block device +if [ -n "${bldmod}" ] ; then + # load block device driver(s) if needed + for module in ${bldmod} ; do + modprobe ${MODPRV} ${module} || error "$init_errbld" + done + mdev -s + [ -z "$bldrfst" ] && bldrfst=squashfs + bldhost=$(checkip $bldhost) + if [ $DEBUGLEVEL -eq 20 ] ; then + echo "** starting setup of ${bldmod} at $(sysup)" + else + echo "Stateless client using ${bldmod} on $bldhost:$bldport with $bldrfst" + fi + # fixme: check for fs in /proc/filesystems before trying to load the module + modprobe ${MODPRV} ${bldrfst} || error "$init_errbld" nonfatal + + # for debugging: interface might not be properly up - check reachability + [ $DEBUGLEVEL -ge 1 ] && ping -c 1 -w 15 ${bldhost} >/dev/null 2>&1 + + case "${srvproto}" in + # network block device present in standard kernel + nbd) + RDEV=/dev/nbd0 + waitfor "${RDEV}" 20000 || error "$init_nbddev" + i=0 + while ! nbd-client $bldhost $bldport ${RDEV} -persist ; do + usleep 100000 + i=$(($i + 1)) + if [ $i -ge 1000 ] ; then + error "$init_nbds"; break + fi + done + usleep 100 + echo deadline > /sys/block/nbd0/queue/scheduler + # echo "32" > /sys/block/nbd0/queue/read_ahead_kb + ;; + # dnbd2 by Vito Di Leo + dnbd2) + RDEV=/dev/vnbd0 + waitfor "${RDEV}" 20000 || error "$init_nbddev" + # quickhack, should be read in from URI + echo 1 > /sys/block/vnbd0/config/vid + echo 1 > /sys/block/vnbd0/config/rid + # check for others in initramfs-setup and then kernel cmdline + rootfs="$(sed -n "/rootfs=/p" /etc/initramfs-setup| \ + sed "s,rootfs=,,;s,\",,g") " + [ "$rootfs" = " " ] && \ + rootfs="$(cat /proc/cmdline|sed "s,.*rootfs=\",,;s,\".*,,") " + i=0 + # assume no more than 16 different dnbd2 servers (default 4) + while [ "x$bldhost" != "x" -a $i -lt 16 ]; do + #echo "I: $i R: $rootfs P:$bldport H:$bldhost" + echo $bldhost $bldport > /sys/block/vnbd0/server${i}/sock + i=$(($i + 1)) + rootfs=${rootfs#* } + bldsp=$(echo ${rootfs}|sed "s, .*,,") + bldhost=$(uri_token $bldsp server) + bldport=$(uri_token $bldsp port) + done + # the cfq scheduler seem not a good idea here + echo deadline > /sys/block/vnbd0/queue/scheduler + # needed for some reason to settle initialization + sleep 1 + i=0 + while [ $(cat /sys/block/vnbd0/config/running) != 1 ] ; do + usleep 100000 + echo 1 > /sys/block/vnbd0/config/running + i=$(($i + 1)) + if [ $i -ge 50 ] ; then + error "$init_dnbd2s"; break + fi + done + echo "64" > /sys/block/vnbd0/queue/read_ahead_kb + ;; + # dnbd by Thorsten Zitterell + dnbd) + # quickhack + RDEV=/dev/dnbd0 + if [ -z $nodnbdcache ] ; then # variable not really used yet + mkdir /dnbd + mount -n -o 'size=20%' -t tmpfs tmpfs /dnbd + ( cat /dev/zero > /dnbd/cache 2>/dev/null || echo "ok" >/tmp/cache ) & + clientopt="-c /dnbd/cache" + waitfor /tmp/cache 10000 + fi + [ $(echo $bldhost|sed "s,\..*,,") -ge 224 ] && \ + ip route add 224.0.0.0/4 dev $nwif + waitfor /dev/dnbd0 10000 || error "$init_nbddev" + echo "dnbd-client -b $bldhost -d $RDEV $clientopt" + while ! dnbd-client -b $bldhost -d $RDEV $clientopt ; do + usleep 10000 + done + # problem with squashfs and cfq scheduler + echo noop > /sys/block/dnbd0/queue/scheduler + echo 0 > /sys/block/dnbd0/queue/read_ahead_kb + ;; + lbd) + # using clients local block device (disk partition is to be specified + RDEV=/dev/$blddev + echo "$bldrfst" >>/etc/filesystems + realbldrfst=$bldrfst + # we might need to mount the base layer filesystem first before accessing + # e.g. a squashfs container file on it + bldrfst=auto + ;; + esac + RWRO="ro" + if [ -n "${cowloop}" -a -x /bin/cowdev ] ; then + modprobe ${MODPRV} cowloop || { + error "$init_loadcow" nonfatal + unset cowloop; } + [ -x /bin/mdev ] && mdev -s + fi + if [ -n "${cowloop}" ] ; then + if [ -n "${unionfs}" -o -n "${aufs}" ] ; then + error "$init_cownobld" + unset unionfs aufs + fi + echo "Using Copy-on-Write block device for rw access" + mount -n -t tmpfs -o size=${cowsize} ramfs ${rwdir} + mkdir /dev/cow && mknod /dev/cow/ctl b 241 255 + usleep 200 + ln -s /dev/cowloop0 /dev/cow/0 + # fixme - cowdev depending on blockdev choosen above ... + cowdev -a /dev/nbd0 ${rwdir}/nbd.cow + usleep 200 + RWRO="rw" + RDEV=/dev/cow/0 + # run ldconfig if not switched off via kernel command line + ldcfg + else + # use normal UnionFS behaviour because rootfs is not NFS + unset nfsro + fi + # finally mount the configured network/local block device + for i in 0 5000 20000 100000 500000 1000000 ; do + usleep $i + mount -n -t $bldrfst -o $RWRO $RDEV /mnt 2>/dev/null && break + done + # check if we got the rootfilesystem directly or need to mount a container + # file from the mounted block device + if [ "${srvproto}" = "lbd" -a -f /mnt/boot/${slxconf_system_name} ]; then + mkdir /dev/bootdisk + mount --move /mnt /dev/bootdisk + mount -t ${realbldrfst} -o loop \ + /dev/bootdisk/boot/${slxconf_system_name} /mnt || error "$init_errloop" + fi + [ $DEBUGLEVEL -eq 20 ] && echo "** finished blockdev setup stuff at $(sysup)" +elif [ -n ${iscsiserver} ] ; then + [ $DEBUGLEVEL -eq 20 ] && echo "** started setting up iSCSI initiator at \ +$(sysup)" + #if [ -n ${iscsitarget} ] ; then + # echo "InitiatorName=${iscsitarget}"|sed "s,@@@serverip@@@,$serverip," \ + # >/etc/initiatorname.iscsi + #else + # discovery + #fi + #echo -e "node.startup = automatic">/etc/iscsid.conf + #iscsid -c /etc/iscsid.conf + # the cowloop part has to be moved (option for iscsi devices too) + # and should be generalized for nbd, dnbd, iscsi +fi + +# if no type of root filesystem is passed via kernel command line try +# information gathered from dhcp process (only valid for nfs) +if [ -z "${bldmod}" -a -z "${bldhost}" -a -z "${nfsserver}" ] ; then + # information has to be read from dhcp and ldap configuration + # cfgcomplete merges all configuration files + cfgcomplete +fi + +# mount nfs rootfs +if [ -z "${bldmod}" -a -z "${bldserver}" ] ; then + [ $DEBUGLEVEL -eq 20 ] && echo "** started nfs mount" + # read in extended initramfs-setup + . /etc/initramfs-setup + # prefer nfsserver and nfspath from kernel commandline over the information + # gotten from dhcp server + if [ -n "${nfsserver}" -a -n "${nfspath}" ] ; then + # check if nfsserver is set as variable @@@serverip@@@ + nfsserver=$(checkip $nfsserver) + else + # we got a problem here + error "$init_nfssp" fatal + fi + # interface might not be properly up - check reachability + ping -c 1 -w 15 ${nfsserver} >/dev/null 2>&1 + # mount the rootfs via nfs readonly (ro) + fsmount nfs ${nfsserver} ${nfspath} /mnt ro + #for transport in tcp udp fail; do + # [ $proto = "fail" ] && { error "$init_nfs"; break; } + # mount -n -t nfs -o ro,nolock,${transport} ${nfsroot} /mnt && break + #done + [ $DEBUGLEVEL -eq 20 ] && echo "** finished nfs mount at $(sysup)" +fi + +runinithook '35-have-network-root' + +# get the complete collection of kernel modules and firmwares available +testmkd /lib/firmware +mount -n --bind /mnt/lib/modules /lib/modules && \ +mount -n --bind /mnt/lib/firmware /lib/firmware || error "$init_moddir" +# start hardware configuration as background process if not a special +# debuglevel (21) is used for the option of manual hwautocfg start +if [ ${DEBUGLEVEL} = 21 ] ; then + echo "You can run 'hwautocfg main &' manually now ..." + /bin/sh +else + [ $DEBUGLEVEL -eq 20 ] && echo "** started hwautocfg in background at \ +$(sysup)" + hwautocfg main & +fi + +runinithook '40-started-hw-config' + +# unionfs/aufs modules visible by now if installed, try to use aufs for rw +# access if available +union_type="" +if [ ${aufs} -eq 1 ] && \ + modprobe ${MODPRV} aufs 2>/dev/null && \ + lsmod | grep -qe "^aufs" ; then union_type="AUFS" +elif [ ${unionfs} -eq 1 ] && \ + modprobe ${MODPRV} unionfs 2>/dev/null && \ + lsmod | grep -qe "^unionfs" ; then union_type="UnionFS" +elif [ ${aufs} -eq 0 -a ${unionfs} -eq 0 -a -z "${cowloop}" ] ; then + error "$init_deselau" nonfatal + unset aufs unionfs +else + error "$init_loadaufs" nonfatal + unset aufs unionfs +fi + +# runtimer +[ $DEBUGLEVEL -eq 8 -o $DEBUGLEVEL -eq 20 ] && \ + echo "** Filesystem setup started at $(sysup)" +# setup of client root filesystem dependent on the availability of UnionFS +if [ "x${union_type}" != "x" ] ; then + echo "Using ${union_type} for rw access" + mkdir -p ${rwdir}/union ${rwdir}/uniontmp /rorootfs + # adapting tempfs size of the device directory (takes /tmp in stage4) + mount -o remount,size=${tmpfssize} ${devdir} + mount -n -t tmpfs -o size=${tmpfssize} none ${rwdir}/uniontmp + # hack for handling unionfs with patched run-init + mount -n --move /mnt /rorootfs + if [ "$union_type" == "UnionFS" ]; then + mount -n -t unionfs -o dirs=${rwdir}/uniontmp:/rorootfs=${nfsro}ro \ + none /mnt + elif [ "$union_type" == "AUFS" ]; then + mount -n -t aufs -o br:/${rwdir}/uniontmp:/rorootfs=ro none /mnt + fi + mkdir -p /mnt/uniontmp + mount -n --move ${rwdir}/uniontmp /mnt/uniontmp + chmod 0755 /mnt/uniontmp /mnt + # running hardware disk/tmp setup now + hwautocfg disk & + # run ldconfig if switched on via kernel command line (token ldsc) or + # triggered by unionized root filesystem + ldcfg +elif [ -z "${cowloop}" ] ; then + # fire up hardware disk/tmp setup first + hwautocfg disk & + echo "Using bind mounts to ramdisk for rw access" + mount -n -t tmpfs -o size=75% ramfs ${rwdir} + for path in ${D_BINDMPTS} ; do + mkdir -p ${rwdir}/${path} >/dev/null 2>&1 + mount -n --bind ${rwdir}/${path} /mnt/${path} + [ ${DEBUGLEVEL} -gt 1 -a ${DEBUGLEVEL} != 8 ] && \ + echo "Created ${rwdir}/${path} and mounted it to /mnt/$path" + done + # see above ... + ldcfg + # save the RO directories mentioned in the distro-specific + # config to a temporary directory. They will later on be restored + for path in ${D_RODIRSINRW}; do + if [ -d /mnt/${path} ] ; then + list="${path} ${list}" + # exclude them from etc copy process too + echo "${path}/*"|sed -e "s,/root/,,;s,^/,," >>/tmp/etc.exclude + mkdir -p /root/${path} >/dev/null 2>&1 + mount -n --bind /mnt/${path} /root/${path} >/dev/null 2>&1 + fi + done + for path in /etc/${D_SYSCONFDIR} ${D_DIRINBINDMNT} ${list}; do + mkdir -p ${rwdir}/${path} + done + testmkd ${rwdir}/var/tmp 1777 + # exclude all sysv runlevel link stuff + for i in ${D_RCDIRS} ${D_INITBOOTD} ; do + echo "*$i/*" >>/tmp/etc.exclude + done + # add list of files to be excluded and common excludes to the filter list + echo -e "-\ndhcp*\n*~\n*.old\n*-\nxorg.conf*" >>/tmp/etc.exclude + # if ld.so.cache is to be generated then do not copy the file + [ -n "${ldsc}" ] && echo -e "ld.so.cache*" >>/tmp/etc.exclude + # for tar exclude lists might be used, more difficult for cp + cd /mnt + tar -X /tmp/etc.exclude -cp etc/*|tar -xp -C ${rwdir} 2>/dev/null + cd / + mount -n --bind ${rwdir}/etc /mnt/etc + mount -n --bind ${rwdir}/var /mnt/var + # get the "covered" mounts back into filesystem structure + for path in ${list}; do + mount -n --move /root/$path /mnt/$path #>>$LOGFILE 2>&1 + done + #rm -rf /root/* >/dev/null 2>&1 + # run some specific stuff !? +fi + +runinithook '50-have-layered-fs' + +# generate a set of default directories +. /etc/openslx.conf +for dir in $OPENSLX_DEFAULT_LOGDIR $OPENSLX_DEFAULT_BINDIR \ + $OPENSLX_DEFAULT_LIBDIR $OPENSLX_DEFAULT_VIRTDIR; do + testmkd /mnt/$dir +done +chmod -R 1777 /mnt/${OPENSLX_DEFAULT_LOGDIR} + +# script for stuff to execute during early bootup +d_mkrlscript init boot.slx "Running configuration postponed from InitRamFS" +echo "fs complete at $(sysup)" >/tmp/fscmpl +# runtimer +[ $DEBUGLEVEL -eq 8 -o $DEBUGLEVEL -eq 20 ] && \ + echo "** Filesystem setup completed at $(sysup)" + +# write debug file information after filesystem setup completed +echo -e "# /etc${D_SYSCONFDIR}/logfile - file created by $0 (initramfs \ +from $date)\n#\n# logfile \ +for linux diskless client specific debugging output\nLOGFILE=\"$LOGFILE\"\n#\ +\n# debug level\nDEBUGLEVEL=\"$DEBUGLEVEL\"" \ + > /mnt/etc/${D_SYSCONFDIR}/logfile || error "$init_errlog" + +# run distribution independent and dependent configuration of files and +# services (offer debug shell in runlevel 22) +if [ ${DEBUGLEVEL} = 22 ] ; then + /bin/sh +else + servconfig & +fi + +for path in @@@COMDIRINDXS@@@ ${D_DIRINDXS} ${D_DIRINBINDMNT} ; do + testmkd /mnt/${path} +done +# Needed writable subdirs nested in readonly subdirs of writable one +for path in ${D_RWDIRSINRO}; do + mount -n -t tmpfs none /mnt/${path} +done +for i in /var/run/utmp /var/log/wtmp /var/log/lastlog /etc/mtab ; do + echo -n > /mnt/$i +done +chown 65534:0 /mnt/var/lib/nobody +# /proc/bus/usb might be deprecated in newer kernels ... +echo -e "# /etc/fstab - file generated by $0 (initramfs from $date)\n#\ +\tOpenSLX Project, info@openslx.com\n\nrootfs\t\t/\t\trootfs\t\tro\t\t 0 0\n\ +proc\t\t/proc\t\tproc\t\tdefaults\t 0 0\ninitramdevs\t/dev\t\ttmpfs\ +\t\trw\t\t 0 0\ndevpts\t\t/dev/pts\tdevpts\t\tmode=0620,gid=5\t 0 0" \ + >/mnt/etc/fstab || error "$init_fstab" +echo -e "rootfs / rootfs rw 0 0\ninitramdevs /dev tmpfs rw\ + 0 0" > /mnt/etc/mtab + +# copy library cache if generated +if [ -n "${ldsc}" ] ; then + # creating library cache takes a while ... + if waitfor /tmp/ldcfg 50000 ; then + test -s /mnt/tmp/ld.so.cache && \ + mv /mnt/tmp/ld.so.cache /mnt/etc/ld.so.cache + else + error "$init_errldcfg" + fi +else + [ $DEBUGLEVEL -gt 2 ] && error "$init_infldcfg" nonfatal +fi + +runinithook '60-have-servconfig' + +# wait a while for hardware setup to complete and start cleanup procedure +[ $DEBUGLEVEL -gt 1 ] && echo "Waiting for hwautocfg to finish ..." +waitfor /tmp/hwcfg 20000 || error "$init_errhw" +hwautocfg finish & + +# wait a while for services setup to complete +[ $DEBUGLEVEL -gt 1 ] && echo "Waiting for servconfig to finish ..." +waitfor /tmp/svcfg 10000 || error "$init_errsw" +# IP configuration is complete and should not be updated automatically +killall -9 udhcpc 2>/dev/null + +# if uniondirs is not set yet, maybe the unions were given via initramfs-setup +if [ -z "$uniondirs" ]; then + if [ "$union_type" == "AUFS" ]; then + # does it contain "://"? + if [ "$aufs" != "${aufs#*://}" ]; then + uniondirs="$aufs" + fi + elif [ "$union_type" == "UnionFS" ]; then + # does it contain "://"? + if [ "$unionfs" != "${unionfs#*://}" ]; then + uniondirs="$unionfs" + fi + fi +fi +# if locations are given that should be unioned with the fs root, do it +if [ -n "$uniondirs" ]; then + include_in_fsroot_union "$union_type" "$uniondirs" +fi + +runinithook '70-before-plugins' + +# ddcinfo temporary overwrite (with kernel cmdline ddcinfo=1) +if [ "${ddcinfo}" = "1" -a -f /initramfs/plugin-conf/xserver.conf ]; then + echo 'xserver_ddcinfo="1"' >> /initramfs/plugin-conf/xserver.conf +fi + +# runtimer +[ $DEBUGLEVEL -eq 8 -o $DEBUGLEVEL -eq 20 ] && \ + echo "** Plugin configuration started at $(sysup)" + +# check for any plugin-specific runlevel scripts and run them, if found: +if [ ${DEBUGLEVEL} = 25 ] ; then + /bin/sh +else + if [ -d /etc/plugin-init.d ]; then + for plugin_starter in /etc/plugin-init.d/*.sh; do + if [ -e $plugin_starter ]; then + [ $DEBUGLEVEL -gt 0 ] \ + && echo -n "Running plugin starter $plugin_starter ..." + [ $DEBUGLEVEL -eq 15 ] \ + && sed '/^#!/ a\\set -x' -i $plugin_starter + init-wrapper $plugin_starter >>/tmp/plugin_starter 2>&1 + if [ $? -eq 0 ]; then + [ $DEBUGLEVEL -gt 0 ] \ + && echo " ok" + else + [ $DEBUGLEVEL -gt 0 ] \ + && echo " failed" + fi + fi + done + # load variables defined by plugins to current environment + [ -f /tmp/env/wrapper.env ] && . /tmp/env/wrapper.env + fi +fi + +runinithook '80-after-plugins' + +# runtimer +[ $DEBUGLEVEL -eq 8 -o $DEBUGLEVEL -eq 20 ] && \ + echo "** Plugin configuration finished at $(sysup)" + +# create links for initial stage4 boot scripts +initial_boot + +runinithook '85-have-initial-boot' + +# post init for some distro specific stuff to run +postinit +# general postinit.local configurable by the admin via openslx/config/<system> +[ -f /initramfs/postinit.local ] && { + [ $DEBUGLEVEL -gt 0 ] && \ + echo -n "Running script /bin/postinit.local ... " + chmod u+x /initramfs/postinit.local + /initramfs/postinit.local + [ $DEBUGLEVEL -gt 0 ] && echo "ok"; } + +# start a debug shell in higher debug levels +[ $DEBUGLEVEL -gt 2 -a $DEBUGLEVEL != 8 ] \ + && echo "DEBUGLEVEL>2: starting debug-shell, exit with CTRL+D" && /bin/sh + +runinithook '90-postinit-done' + +# unmount the bind mounted modules, firmware directories and nfs /tmp/scratch +# (if present) +export ticks +for ticks in 0 1 2 5 10 20 30; do + sleep $ticks && umount -n /lib/modules 2>/dev/null && break + error "$init_wait" nonfatal +done +for ticks in 0 1 2 5 10 20 30; do + sleep $ticks && umount -n /lib/firmware 2>/dev/null && break + error "$init_wait" nonfatal +done +mount 2>/dev/null | grep -q "/tmp/scratch type nfs" && \ + for ticks in 0 1 2 5 10 20 30; do + sleep $ticks && umount -n /tmp/scratch 2>/dev/null && break + done + +mount 2>/dev/null | grep -q /lib/modules && error "$init_errumnt" +# close runlevel script for stuff to execute during early bootup +d_mkrlscript close boot.slx "" +# put /tmp into stage4 mtab and add stuff to stage4 fstab +sed -n "s,/mnt,,;/\/tmp /p" /proc/mounts >> /mnt/etc/mtab +[ -f /tmp/fstab ] && cat /tmp/fstab >> /mnt/etc/fstab +# preparations to leave initramfs - umounting ... +umount -n /sys || error "$init_errsys" nonfatal +umount -n /proc/bus/usb >/dev/null 2>&1 +chmod 1777 /dev/shm /mnt/tmp 2>/dev/null + +runinithook '95-cleanup' + +# kill hwautocfg, servconfig, hwinfo, syslogd, etc. +killall -9 hwautocfg servconfig debugshell hwinfo syslogd logread 2>/dev/null + +# runtimer +[ $DEBUGLEVEL -eq 8 -o $DEBUGLEVEL -eq 20 ] && \ + echo "** SLX init ended near $(sysup)" +# kill the watchdog (autopoweroff, if stage3 init never finishes) +[ -f /tmp/watchdogpid ] && kill $(cat /tmp/watchdogpid) 2>/dev/null +# stop logging services if required and move logfile into stage4 filesystem +# (if exists) +killall klogd 2>/dev/null +[ -f /var/log/slx-boot.log ] && mv /var/log/slx-boot.log \ + /mnt/var/log/slx-s3boot.log +[ -f /var/log/messages ] && cp /var/log/messages \ + /mnt/var/log/slx_messages 2>/dev/null +# if no syslog plugin was configured, start the daemon again writing to no +# logfile directly (useless fake test as placeholder) +# THIS IS NOT WORKING SOMEHOW!! +#[ ! -d /mnt/opt/openslx/plugin-repo/syslog/ ] && syslogd -O /mnt/var/log/testfile + +# move /dev and unmount /proc and unset all old, unneeded environment +# variables +mount -n --move /dev /mnt/dev +umount -n /proc +unset client debug date initrd ip bldroot macaddr nwif nfsroot rootfs ticks \ + vci vga +unset BOOT_IMAGE KCMDLINE KERNEL MODPRV NWMODULES OLDPWD UDEVD_EVENT_TIMEOUT \ + SLXVERSION UDEVD_EXPECTED_SEQNUM PATH + +runinithook '99-handing-over' + +# new style of pivoting (switch_root or run-init) +exec /sbin/switch_root -c dev/console /mnt /sbin/init $DEBUG_UPSTART || \ + error "$init_runinit" |