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mkard.sh
#!/bin/bash # Acronis RamDisk configuration utility. # Copyright (C) Acronis, 2013 # Initially written by Simonov Vladimir (Vladimir.Simonov@acronis.com) # $Id$ # export LANG=C RHEL_PREDEF_LIST="cifs.ko des_generic.ko ecb.ko md4.ko nfs.ko dm-mirror.ko" KERNEL_VER=$1 [ -z "$KERNEL_VER" ] && KERNEL_VER=`uname -r` echo Preparing Acronis Media configuration based on $KERNEL_VER kernel. MOD_DIR=/lib/modules/$KERNEL_VER [ ! -d $MOD_DIR ] \ && echo "$MOD_DIR not found" && exit 1 X86_64="" if [ ! -z "`echo $KERNEL_VER | grep x86_64`" ] ; then X86_64=64 fi BDIR=`dirname $0` if [ "$BDIR" == "." ] ; then BDIR=`pwd` fi ARD_DIR=${BDIR}/BackupAndRecoveryAgent [ ! -d $ARD_DIR ] \ && echo "$ARD_DIR not found" && exit 1 ARD_NAME=$ARD_DIR/agent_ramdisk${X86_64}.dat [ ! -f $ARD_NAME ] \ && echo "$ARD_NAME not found" && exit 1 AKRNL_NAME=$ARD_DIR/kernel${X86_64}.dat [ ! -f $AKRNL_NAME ] \ && echo "$AKRNL_NAME not found" && exit 1 KERNEL_NAME=/boot/vmlinuz-$KERNEL_VER [ ! -f $KERNEL_NAME ] \ && echo "$KERNEL_NAME not found" && exit 1 ARD_NAME2=$ARD_DIR/bootstrap_ramdisk${X86_64}.dat [ -f $ARD_NAME2 ] \ && echo "Using $ARD_NAME2" && ARD_NAME_SAVED="$ARD_NAME" && ARD_NAME="$ARD_NAME2" NOT_FOUND_MODULES="" NOT_FOUND_FIRMWARE="" function save_orig_data() { local rd=$1; shift local rd_orig=${rd}.orig local krnl=$1; shift local krnl_orig=${krnl}.orig if [ ! -f $rd_orig ] ; then cp $rd $rd_orig [ X"$?" != X"0" ] && echo Copy $rd failed && exit 1 fi if [ ! -f $krnl_orig ] ; then cp $krnl $krnl_orig [ X"$?" != X"0" ] && echo Copy $krnl failed && exit 1 fi } # RHEL 6.x support - avoid "mount -t squashfs" function unpack_squashfs() { local fname=$1 if [ -e lib/$fname.sq ]; then # mkdir lib/$fname.tmp # mount -t squashfs lib/$fname.sq lib/$fname.tmp -o loop # cp -a lib/$fname.tmp lib/$fname # umount lib/$fname.tmp # rm -rf lib/$fname.tmp lib/$fname.sq mkdir lib/$fname rm -f lib/$fname.sq fi } function get_unpack_cmd() { local fname=$1 file "${fname}" | grep -i -q "XZ compressed data" if [ X"$?" == X"0" ]; then echo -n "xz -d -c" else file "${fname}" | grep -i -q "gzip compressed data" if [ X"$?" == X"0" ]; then echo -n "gunzip -c" else echo -n "cat" fi fi } function extract_ard() { local name="${ARD_NAME}.orig" local cmd=`get_unpack_cmd "${name}"` mkdir -p $BDIR/ac cd $BDIR/ac ${cmd} "${name}" | cpio --quiet -i -d --no-absolute-filenames [ X"$?" != X"0" ] && echo "Extract Acronis RD failed" && exit 1 # RHEL 6.x support - avoid "mount -t squashfs" # extract original modules list from etc/modinfo.dump unpack_squashfs firmware unpack_squashfs modules cat etc/modinfo.dump|tr '\0' '\n'|grep filename|sed -e "s|filename:.*\/||" > ../mod_list.orig cd - > /dev/null } function repack_ard() { local name="${ARD_NAME_SAVED}" if [ -z "${name}" ]; then return fi local cmd=`get_unpack_cmd "${name}"` ${cmd} "${name}" | gzip -c > "${name}.gz" [ X"$?" != X"0" ] && echo "Repack ramdisk to gz format failed" && exit 1 mv -f "${name}.gz" "${name}" [ X"$?" != X"0" ] && echo "Repack ramdisk to gz format failed in mv" && exit 1 } function extract_sysrd() { local image="../initramfs-${KERNEL_VER}.img" local prefix="cat ${image}" mkdir -p $BDIR/sys mkinitrd --with=snapapi26 --with=snumbd26 \ $BDIR/initramfs-${KERNEL_VER}.img ${KERNEL_VER} [ X"$?" != X"0" ] && echo "mkinitrd failed" && exit 1 cd $BDIR/sys file ${image} | grep "cpio archive" > /dev/null 2>&1 [ X"$?" == X"0" -a -f /usr/lib/dracut/skipcpio ] && \ prefix="/usr/lib/dracut/skipcpio ${image}" ${prefix} | gunzip -c - | cpio --quiet -i -d --no-absolute-filenames [ X"$?" != X"0" ] && echo "Extract System RD failed" && exit 1 cd - > /dev/null } function extract_sysrd9() { local image="../initramfs-${KERNEL_VER}.img" local prefix="cat ${image}" mkdir -p $BDIR/sys /usr/bin/dracut --add-drivers "snapapi26 snumbd26" \ $BDIR/initramfs-${KERNEL_VER}.img ${KERNEL_VER} [ X"$?" != X"0" ] && echo "/usr/bin/dracut failed" && exit 1 cd $BDIR/sys file ${image} | grep "cpio archive" > /dev/null 2>&1 [ X"$?" == X"0" -a -f /usr/lib/dracut/skipcpio ] && \ prefix="/usr/lib/dracut/skipcpio ${image}" ${prefix} | gunzip -c - | cpio --quiet -i -d --no-absolute-filenames [ X"$?" != X"0" ] && echo "Extract System RD failed" && exit 1 cd - > /dev/null } function copy_old() { local i local from=$1; shift for i in $OLD_MODS_LIST ; do local mname=`basename $i` local oname=`find $from -name $mname` local xz=0 if [ -z "$oname" ] ; then oname=`find $from -name ${mname}.xz` let xz=1 fi if [ -z "$oname" ] ; then NOT_FOUND_MODULES="$NOT_FOUND_MODULES $mname" else # echo Adding module $mname if [ $xz -eq 0 ]; then cp -L -f $oname $AMODULES_DIR/ else xz -d -c $oname > $AMODULES_DIR/$mname fi [ X"$?" != X"0" ] && echo "Failed to copy $oname" fi done } function copy_modules_from_dir() { local list=`find $1 -name \*.ko` if [ -n "$list" ] ; then echo Adding modules from $1 cp -L -f $list $AMODULES_DIR/ [ X"$?" != X"0" ] && echo "Failed to copy modules from $1" fi list=`find $1 -name \*.ko.xz` local i echo Adding XZ modules from $1 for i in $list ; do local out=`basename $i|sed -e "s|\.xz||"` xz -d -c $i > $AMODULES_DIR/$out [ X"$?" != X"0" ] && echo "Failed to copy XZ module $i from $1" done } function copy_modules_list() { local dir=$1; shift local i for i in $* ; do local list=`find $dir -name \*${i}\*` local j for j in $list ; do echo Adding file $j from $dir local cmd=`get_unpack_cmd "$j"` local out=`basename $j|sed -e "s|\.xz||"` ${cmd} "${j}" > $AMODULES_DIR/$out [ X"$?" != X"0" ] && echo "Failed to copy file $i from $1" done done } function copy_firmware() { local afw_dir=$BDIR/ac/lib/firmware local list="" local i local dname local mods=`find $AMODULES_DIR/ -name \*.ko` for i in $mods; do list="$list `/sbin/modinfo $i -F firmware`" done for i in $list ; do if [ ! -f $afw_dir/$i ]; then dname=`dirname $i` [ "$dname" != "." ] && mkdir -p $afw_dir/$dname cp /lib/firmware/$i $afw_dir/$i 2> /dev/null [ X"$?" != X"0" ] && \ NOT_FOUND_FIRMWARE="$NOT_FOUND_FIRMWARE $i" fi done } function check_deps() { local deps=`modinfo -F depends $AMODULES_DIR/*.ko| \ tr ',' '\n' |sort -u|grep -v "^\$"|sed "s/\$/\.ko/g"` local i for i in $deps; do if [ ! -f $AMODULES_DIR/${i} ] ; then UNRESOLVED_DEPS="$UNRESOLVED_DEPS $i" fi done } function collect_modinfo() { /sbin/modinfo -0 $AMODULES_DIR/*.ko > $BDIR/ac/etc/modinfo.dump echo $RHEL_PREDEF_LIST | sed "s/\.ko//g" > $BDIR/ac/etc/mods.third } BDIR=${BDIR}/rd AMODULES_DIR=$BDIR/ac/lib/modules # Start work rm -rf $BDIR if [ -x /usr/bin/mkinitrd ]; then extract_sysrd elif [ -x /usr/bin/lsinitrd -a -x /usr/bin/dracut ]; then extract_sysrd9 else echo Error: Cannot find /usr/bin/lsinitrd or /usr/bin/mkinitrd and /usr/bin/dracut exit 1 fi save_orig_data ${ARD_NAME} ${AKRNL_NAME} extract_ard # RHEL 6.x support - avoid "mount -t squashfs" # Use modules list from original /etc/modinfo.dump #OLD_MODS_LIST=`find $AMODULES_DIR -type f` #rm -rf $AMODULES_DIR/* OLD_MODS_LIST=`cat $BDIR/mod_list.orig` copy_old $MOD_DIR/kernel [ -d $MOD_DIR/extra ] && copy_modules_from_dir $MOD_DIR/extra [ -d $MOD_DIR/weak-updates ] && copy_modules_from_dir $MOD_DIR/weak-updates [ -d $BDIR/sys/lib/modules ] && copy_modules_from_dir $BDIR/sys/lib/modules copy_modules_list $MOD_DIR $RHEL_PREDEF_LIST echo Resolving modules dependencies... UNRESOLVED_DEPS="" check_deps if [ -n "$UNRESOLVED_DEPS" ] ; then copy_modules_list $MOD_DIR $UNRESOLVED_DEPS UNRESOLVED_DEPS="" check_deps if [ -n "$UNRESOLVED_DEPS" ] ; then copy_modules_list $MOD_DIR $UNRESOLVED_DEPS UNRESOLVED_DEPS="" check_deps if [ -n "$UNRESOLVED_DEPS" ] ; then echo Unresolved modules: $UNRESOLVED_DEPS fi fi fi echo Adding firmware... copy_firmware echo "Missed firmware: $NOT_FOUND_FIRMWARE" echo Collecting modules information... collect_modinfo # pack ramdisk echo Packing ramdisk... cd $BDIR/ac find . | cpio --quiet -H newc -o | gzip -1 -n > $ARD_NAME [ X"$?" != X"0" ] && echo "Pack new ramdisk failed" && exit 1 cd - > /dev/null # copy kernel cp -r $KERNEL_NAME $AKRNL_NAME [ X"$?" != X"0" ] && echo "Can not copy $KERNEL_NAME" && exit 1 repack_ard #echo "Missed modules: $NOT_FOUND_MODULES" echo "New Acronis Media Configuration created successfully." exit 0
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