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@ -1,15 +1,43 @@ |
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#!/bin/bash |
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echo_header "Creating initrd data:" |
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rm -rf $disksdir/initrd |
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mkdir -p $disksdir/initrd/{dev,proc,sys,tmp,scsi,net,bin,etc,lib} |
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cd $disksdir/initrd; ln -s bin sbin; ln -s . usr |
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rock_targetdir="$base/target/$target/" |
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rock_target="$target" |
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rootdir="$disksdir/2nd_stage" |
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targetdir="$disksdir/initrd" |
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cross_compile="" |
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if [ "$ROCKCFG_CROSSBUILD" = "1" ] ; then |
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cross_compile="`find ${base}/ROCK/tools.cross/ -name "*-readelf"`" |
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cross_compile="${cross_compile##*/}" |
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cross_compile="${cross_compile%%readelf}" |
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fi |
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initrdfs="ext2fs" |
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block_size="" |
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ramdisk_size=12288 |
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case ${initrdfs} in |
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ext2fs|ext3fs|cramfs) |
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initrd_img="${disksdir}/initrd.img" |
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;; |
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ramfs) |
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initrd_img="${disksdir}/initrd.cpio" |
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;; |
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esac |
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echo_status "Creating some device nodes" |
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mknod dev/ram0 b 1 0 |
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mknod dev/null c 1 3 |
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mknod dev/zero c 1 5 |
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mknod dev/tty c 5 0 |
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mknod dev/console c 5 1 |
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mknod ${targetdir}/dev/ram0 b 1 0 |
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mknod ${targetdir}/dev/null c 1 3 |
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mknod ${targetdir}/dev/zero c 1 5 |
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mknod ${targetdir}/dev/tty c 5 0 |
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mknod ${targetdir}/dev/console c 5 1 |
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# this copies a set of programs and the necessary libraries into a |
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# chroot environment |
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echo_status "Create checkisomd5 binary" |
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cp -r ${base}/misc/isomd5sum ${base}/build/${ROCKCFG_ID}/ |
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@ -24,23 +52,54 @@ chroot ${base}/build/${ROCKCFG_ID}/ /compile_isomd5sum.sh |
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cp ${base}/build/${ROCKCFG_ID}/isomd5sum/checkisomd5 bin/ |
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rm -rf ${base}/build/${ROCKCFG_ID}/compile_isomd5sum.sh ${base}/build/${ROCKCFG_ID}/isomd5sum |
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echo_status "Copying and adjusting linuxrc scipt" |
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cp ${base}/target/${target}/linuxrc.sh linuxrc |
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chmod +x linuxrc |
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cp ${base}/target/${target}/linuxrc.sh sbin/init |
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chmod +x sbin/init |
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sed -i -e "s,^STAGE_2_BIG_IMAGE=\"2nd_stage.tar.gz\"$,STAGE_2_BIG_IMAGE=\"${ROCKCFG_SHORTID}/2nd_stage.tar.gz\"," \ |
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-e "s,^STAGE_2_SMALL_IMAGE=\"2nd_stage_small.tar.gz\"$,STAGE_2_SMALL_IMAGE=\"${ROCKCFG_SHORTID}/2nd_stage_small.tar.gz\"," \ |
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linuxrc |
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echo_status "Copy various helper applications." |
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for file in ../2nd_stage/bin/{tar,gzip,bash2,bash,sh,mount,umount,ls,sed,cut,cp} \ |
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../2nd_stage/bin/{cat,uname,rm,ln,mkdir,rmdir,gawk,awk,grep,sleep} \ |
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../2nd_stage/sbin/{ip,hwscan,pivot_root,swapon,swapoff,udevd} \ |
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../2nd_stage/usr/bin/{wget,find,expand,readlink,basename,tr} \ |
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../2nd_stage/usr/sbin/lspci ; do |
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programs="${programs} ${file#../2nd_stage}" |
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cp ${file} bin/ |
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sbin/init |
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libdirs="${rootdir}/lib `sed -e"s,^\(.*\),${rootdir}\1," ${rootdir}/etc/ld.so.conf | tr '\n' ' '`" |
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needed_libs() { |
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local x="${1}" library |
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${cross_compile}readelf -d ${x} 2>/dev/null | grep "(NEEDED)" | |
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sed -e"s,.*Shared library: \[\(.*\)\],\1," | |
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while read library ; do |
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find ${libdirs} -name "${library}" 2>/dev/null | |
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sed -e "s,^${rootdir},,g" | tr '\n' ' ' |
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done |
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} |
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echo_status "Copying other files ... " |
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for x in ${rock_targetdir}/initrd/initrd_* ; do |
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[ -f ${x} ] || continue |
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while read file target ; do |
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file="${rootdir}/${file}" |
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[ -e ${file} ] || continue |
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while read f ; do |
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tfile=${targetdir}/${target}${f#${file}} |
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[ -e ${tfile} ] && continue |
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if [ -d ${f} -a ! -L ${f} ] ; then |
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mkdir -p ${tfile} |
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continue |
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else |
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mkdir -p ${tfile%/*} |
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fi |
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# if [ -b ${f} -o -c ${f} -o -p ${f} -o -L ${f} ] ; then |
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cp -a ${f} ${tfile} |
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# else |
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# cp ${f} ${tfile} |
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# fi |
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file -L ${f} | grep -q ELF || continue |
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libs="${libs} `needed_libs ${f}`" |
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done < <( find "${file}" ) |
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done < ${x} |
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done |
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cp -a $build_root/etc/udev etc/ |
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cp -a $build_root/lib/udev lib/ |
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for x in modprobe.static modprobe.static.old insmod.static insmod.static.old ; do |
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if [ -f ../2nd_stage/sbin/${x/.static/} ]; then |
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@ -59,7 +118,7 @@ echo_status "Copy scsi and network kernel modules." |
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find lib/modules -type f -exec $STRIP --strip-debug {} \; |
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for x in ../2nd_stage/lib/modules/*/modules.{dep,pcimap,isapnpmap} ; do |
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cp $x ${x#../2nd_stage/} || echo "not found: $x" ; |
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cp $x ${x#../2nd_stage/} || echo_status "not found: $x" ; |
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done |
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for x in lib/modules/*/kernel/drivers/{scsi,net}; do |
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@ -68,78 +127,82 @@ done |
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rm -f lib/modules/[0-9]*/kernel/drivers/scsi/{st,scsi_debug}.{o,ko} |
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rm -f lib/modules/[0-9]*/kernel/drivers/net/{dummy,ppp*}.{o,ko} |
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echo_status "Copying necessary libraries" |
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libs="/lib/ld-linux.so.2 /usr/lib/libpopt.so.0" |
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# libpopt from checkisomd5 which is not in build/* |
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for x in ${programs} ; do |
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[ -e ./$x ] || continue |
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file $x | grep -q ELF || continue |
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libs="$libs `chroot ${base}/build/${ROCKCFG_ID} ldd $x 2>/dev/null | grep -v 'not a dynamic executable' | sed -e 's,^[\t ]*,,g' | cut -f 3 -d' '`" |
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done |
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while [ -n "$libs" ] ; do |
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oldlibs=$libs |
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echo_status "Copying required libraries ... " |
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while [ -n "${libs}" ] ; do |
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oldlibs=${libs} |
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libs="" |
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for x in $oldlibs ; do |
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mkdir -p ./${x%/*} |
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if [ ! -e ./$x ] ; then |
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cp ${base}/build/${ROCKCFG_ID}/$x ./$x |
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echo_status "- ${x##*/}" |
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fi |
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file $x | grep -q ELF || continue |
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for y in `chroot ${base}/build/${ROCKCFG_ID} ldd $x 2>/dev/null | grep -v 'not a dynamic executable' | sed -e 's,^[\t ]*,,g' | cut -f 3 -d' '` ; do |
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[ ! -e "./$y" ] && libs="$libs $y" |
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for x in ${oldlibs} ; do |
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[ -e ${targetdir}/${x} ] && continue |
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mkdir -p ${targetdir}/${x%/*} |
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cp ${rootdir}/${x} ${targetdir}/${x} |
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file -L ${rootdir}/${x} | grep -q ELF || continue |
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for y in `needed_libs ${rootdir}/${x}` ; do |
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[ ! -e "${targetdir}/${y}" ] && libs="${libs} ${y}" |
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done |
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done |
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done |
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echo_status "Creating links for identical files." |
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echo_status "Creating links for identical files ..." |
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while read ck fn |
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do |
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if [ "$oldck" = "$ck" ] ; then |
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echo_status "\`- Found $fn -> $oldfn." |
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rm $fn ; ln -s ${oldfn#.} $fn |
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# don't link empty files... |
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if [ "${oldck}" = "${ck}" -a -s "${fn}" ] ; then |
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echo_status "\`- Found ${fn#${targetdir}} -> ${oldfn#${targetdir}}." |
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rm ${fn} ; ln -s /${oldfn#${targetdir}} ${fn} |
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else |
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oldck=$ck ; oldfn=$fn |
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oldck=${ck} ; oldfn=${fn} |
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fi |
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done < <( find -type f | xargs md5sum | sort ) |
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done < <( find ${targetdir} -type f | xargs md5sum | sort ) |
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cd .. |
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echo_header "Creating initrd filesystem image: " |
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ramdisk_size=16384 |
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echo_status "Creating temporary files." |
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tmpdir=initrd_$$.dir; mkdir -p $disksdir/$tmpdir; cd $disksdir |
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dd if=/dev/zero of=initrd.img bs=1024 count=$ramdisk_size &> /dev/null |
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eval tmpdev="`losetup -f 2>/dev/null`" |
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if [ -z "$tmpdev" ] ; then |
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for x in /dev/loop* /dev/loop/* ; do |
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[ -b "${x}" ] || continue |
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losetup ${x} 2>&1 >/dev/null || tmpdev="${x}" |
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[ -n "${tmpdev}" ] && break |
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done |
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echo_header "Creating initrd filesystem image (${initrdfs}): " |
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case "${initrdfs}" in |
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cramfs) |
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[ "${block_size}" == "" ] && block_size=4096 |
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mkfs.cramfs -b ${block_size} ${targetdir} ${initrd_img} |
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;; |
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ramfs) |
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# cp -a ${targetdir}/{linuxrc,init} |
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( cd ${targetdir} ; find | cpio -o -c > ${initrd_img} ; ) |
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;; |
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ext2fs|ext3fs) |
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[ "${block_size}" == "" ] && block_size=1024 |
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block_count=$(( ( 1024 * ${ramdisk_size} ) / ${block_size} )) |
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echo_status "Creating temporary files." |
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tmpdir=`mktemp -d` ; mkdir -p ${tmpdir} |
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dd if=/dev/zero of=${initrd_img} bs=${block_size} count=${block_count} &> /dev/null |
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tmpdev="`losetup -f 2>/dev/null`" |
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if [ -z "${tmpdev}" ] ; then |
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echo_error "No free loopback device found!" |
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rm -f $tmpfile ; rmdir $tmpdir; exit 1 |
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for x in /dev/loop* /dev/loop/* ; do |
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[ -b "${x}" ] || continue |
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losetup ${x} 2>&1 >/dev/null || tmpdev="${x}" |
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[ -n "${tmpdev}" ] && break |
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done |
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if [ -z "${tmpdev}" ] ; then |
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echo_status "No free loopback device found!" |
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rm -f ${tmpfile} ; rmdir ${tmpdir}; exit 1 |
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fi |
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fi |
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fi |
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echo_status "Using loopback device $tmpdev." |
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losetup "$tmpdev" initrd.img |
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echo_status "Writing initrd image file." |
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mke2fs -m 0 -N 360 -q $tmpdev &> /dev/null |
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mount -t ext2 $tmpdev $tmpdir |
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rmdir $tmpdir/lost+found/ |
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cp -a initrd/* $tmpdir |
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umount $tmpdir |
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echo_status "Using loopback device ${tmpdev}." |
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losetup "${tmpdev}" ${initrd_img} |
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echo_status "Writing initrd image file." |
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mkfs.${initrdfs:0:4} -b ${block_size} -m 0 -N 360 -q ${tmpdev} &> /dev/null |
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mount -t ${initrdfs:0:4} ${tmpdev} ${tmpdir} |
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rmdir ${tmpdir}/lost+found/ |
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cp -a ${targetdir}/* ${tmpdir} |
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umount ${tmpdir} |
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echo_status "Removing temporary files." |
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losetup -d ${tmpdev} |
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rm -rf ${tmpdir} |
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;; |
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esac |
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echo_status "Compressing initrd image file." |
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gzip -9 initrd.img |
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mv initrd{.img,}.gz |
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gzip -9 -c ${initrd_img} > ${initrd_img}.gz |
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mv ${initrd_img%.img}{.img,}.gz |
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echo_status "Removing temporary files." |
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losetup -d $tmpdev |
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rm -rf $tmpdir |
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target="$rock_target" |
Stefan Fiedler
19 years ago