|
|
|
@ -2,7 +2,8 @@ |
|
|
|
|
|
|
|
kernel=`uname -r` |
|
|
|
targetdir=`mktemp -d` |
|
|
|
modprobeopt=`echo $kernel | sed '/2.4/ { s,.*,-n,; q; }; s,.*,--show-depends,'` |
|
|
|
modprobeopt="-n" |
|
|
|
[ "${kernel:0:3}" == "2.6" ] && modprobeopt="--show-depends" |
|
|
|
empty=0 |
|
|
|
|
|
|
|
rootdir="" |
|
|
|
@ -17,36 +18,36 @@ ramdisk_size=8192 |
|
|
|
# x86 (QEMU) 1024 ext2fs |
|
|
|
# x86 (QEMU) 4096 cramfs |
|
|
|
|
|
|
|
while [ $# -gt 0 ] ; do |
|
|
|
case $1 in |
|
|
|
while [ ${#} -gt 0 ] ; do |
|
|
|
case "${1}" in |
|
|
|
empty) empty=1 ;; |
|
|
|
-root) |
|
|
|
if [ -d "$2/" ]; then |
|
|
|
if [ -d "${2}/" ]; then |
|
|
|
rootdir="${2%/}" ; shift |
|
|
|
else |
|
|
|
echo "Can't open ${2}: No such directory." |
|
|
|
echo "Usage: $0 [ kernel-version ]" |
|
|
|
echo "Usage: ${0} [ kernel-version ]" |
|
|
|
exit 1 |
|
|
|
fi |
|
|
|
;; |
|
|
|
-cross) cross_compile="$2" ; shift ;; |
|
|
|
-bs) block_size="$2" ; shift ;; |
|
|
|
-cross) cross_compile="${2}" ; shift ;; |
|
|
|
-bs) block_size="${2}" ; shift ;; |
|
|
|
-fs) |
|
|
|
case "$2" in |
|
|
|
ext2fs|ext3fs|cramfs|ramfs) initrdfs="$2" ; shift ;; |
|
|
|
case "${2}" in |
|
|
|
ext2fs|ext3fs|cramfs|ramfs) initrdfs="${2}" ; shift ;; |
|
|
|
*) |
|
|
|
echo "Filesystem $2 not supported as initrd filesystem." |
|
|
|
echo "Filesystem ${2} not supported as initrd filesystem." |
|
|
|
exit 1 |
|
|
|
;; |
|
|
|
esac |
|
|
|
;; |
|
|
|
*) |
|
|
|
if [ -d "${rootdir}/lib/modules/$1" ]; then |
|
|
|
kernel="$1" |
|
|
|
echo kernel $kernel |
|
|
|
if [ -d "${rootdir}/lib/modules/${1}" ]; then |
|
|
|
kernel="${1}" |
|
|
|
echo "kernel </span>${<span class="nv">kernel}" |
|
|
|
else |
|
|
|
echo "Can't open ${rootdir}/lib/modules/$1: No such directory." |
|
|
|
echo "Usage: $0 [ kernel-version ]" |
|
|
|
echo "Can't open ${rootdir}/lib/modules/${1}: No such directory." |
|
|
|
echo "Usage: ${0} [ kernel-version ]" |
|
|
|
exit 1 |
|
|
|
fi |
|
|
|
;; |
|
|
|
@ -54,7 +55,7 @@ while [ $# -gt 0 ] ; do |
|
|
|
shift |
|
|
|
done |
|
|
|
|
|
|
|
case $initrdfs in |
|
|
|
case ${initrdfs} in |
|
|
|
ext2fs|ext3fs|cramfs) |
|
|
|
initrd_img="${rootdir}/boot/initrd-${kernel}.img" |
|
|
|
;; |
|
|
|
@ -63,28 +64,28 @@ case $initrdfs in |
|
|
|
;; |
|
|
|
esac |
|
|
|
|
|
|
|
echo "Creating $initrd_img ..." |
|
|
|
mkdir -p $targetdir/etc/conf |
|
|
|
if [ "$empty" = 0 ] ; then |
|
|
|
echo "Creating ${initrd_img} ..." |
|
|
|
mkdir -p ${targetdir}/etc/conf |
|
|
|
if [ "${empty}" = 0 ] ; then |
|
|
|
grep '^modprobe ' ${rootdir}/etc/conf/kernel | grep -v 'no-initrd' | \ |
|
|
|
sed 's,[ ]#.*,,' | \ |
|
|
|
while read a b ; do $a $modprobeopt -v $b 2> /dev/null; done | |
|
|
|
while read a b ; do ${a} ${modprobeopt} -v ${b} 2> /dev/null; done | |
|
|
|
while read a b c; do |
|
|
|
[[ "$b" = *.ko ]] && b=${b/.ko/}; |
|
|
|
b="`find ${rootdir}/lib/modules/$kernel -wholename "$b.o" -o -wholename "$b.ko"`" |
|
|
|
echo "Adding $b." |
|
|
|
mkdir -p $targetdir/${b%/*} |
|
|
|
cp $b $targetdir/$b |
|
|
|
echo "/sbin/insmod $b $c" >> $targetdir/etc/conf/kernel |
|
|
|
[[ "${b}" = *.ko ]] && b=${b/.ko/}; |
|
|
|
b="`find ${rootdir}/lib/modules/${kernel} -wholename "${b}.o" -o -wholename "${b}.ko"`" |
|
|
|
echo "Adding ${b}." |
|
|
|
mkdir -p ${targetdir}/${b%/*} |
|
|
|
cp ${b} ${targetdir}/${b} |
|
|
|
echo "/sbin/insmod ${b} ${c}" >> ${targetdir}/etc/conf/kernel |
|
|
|
done |
|
|
|
fi |
|
|
|
|
|
|
|
mkdir -p $targetdir/{dev,root,tmp,proc,sys} |
|
|
|
mknod $targetdir/dev/ram0 b 1 0 |
|
|
|
mknod $targetdir/dev/null c 1 3 |
|
|
|
mknod $targetdir/dev/zero c 1 5 |
|
|
|
mknod $targetdir/dev/tty c 5 0 |
|
|
|
mknod $targetdir/dev/console c 5 1 |
|
|
|
mkdir -p ${targetdir}/{dev,root,tmp,proc,sys} |
|
|
|
mknod ${targetdir}/dev/ram0 b 1 0 |
|
|
|
mknod ${targetdir}/dev/null c 1 3 |
|
|
|
mknod ${targetdir}/dev/zero c 1 5 |
|
|
|
mknod ${targetdir}/dev/tty c 5 0 |
|
|
|
mknod ${targetdir}/dev/console c 5 1 |
|
|
|
|
|
|
|
# this copies a set of programs and the necessary libraries into a |
|
|
|
# chroot environment |
|
|
|
@ -99,58 +100,58 @@ echo "done" |
|
|
|
libdirs="${rootdir}/lib `sed -e"s,^\(.*\),${rootdir}\1," ${rootdir}/etc/ld.so.conf | tr '\n' ' '`" |
|
|
|
|
|
|
|
needed_libs() { |
|
|
|
local x="$1" library |
|
|
|
local x="${1}" library |
|
|
|
|
|
|
|
${cross_compile}readelf -d $x 2>/dev/null | grep "(NEEDED)" | |
|
|
|
${cross_compile}readelf -d ${x} 2>/dev/null | grep "(NEEDED)" | |
|
|
|
sed -e"s,.*Shared library: \[\(.*\)\],\1," | |
|
|
|
while read library ; do |
|
|
|
find $libdirs -name "$library" 2>/dev/null | |
|
|
|
sed -e "s,^$rootdir,,g" | tr '\n' ' ' |
|
|
|
find ${libdirs} -name "${library}" 2>/dev/null | |
|
|
|
sed -e "s,^${rootdir},,g" | tr '\n' ' ' |
|
|
|
done |
|
|
|
} |
|
|
|
|
|
|
|
echo -n "Copying other files ... " |
|
|
|
for x in ${rootdir}/etc/conf/initrd/initrd_* ; do |
|
|
|
[ -f $x ] || continue |
|
|
|
[ -f ${x} ] || continue |
|
|
|
while read file target ; do |
|
|
|
file="${rootdir}/$file" |
|
|
|
[ -e $file ] || continue |
|
|
|
file="${rootdir}/${file}" |
|
|
|
[ -e ${file} ] || continue |
|
|
|
|
|
|
|
for f in `find $file` ; do |
|
|
|
tfile=${targetdir}/${target}${f#$file} |
|
|
|
[ -e $tfile ] && continue |
|
|
|
while read f ; do |
|
|
|
tfile=${targetdir}/${target}${f#${file}} |
|
|
|
[ -e ${tfile} ] && continue |
|
|
|
|
|
|
|
if [ -d $f -a ! -L $f ] ; then |
|
|
|
if [ -d ${f} -a ! -L ${f} ] ; then |
|
|
|
mkdir -p ${tfile} |
|
|
|
continue |
|
|
|
else |
|
|
|
mkdir -p ${tfile%/*} |
|
|
|
fi |
|
|
|
|
|
|
|
# if [ -b $f -o -c $f -o -p $f -o -L $f ] ; then |
|
|
|
cp -a $f $tfile |
|
|
|
# if [ -b ${f} -o -c ${f} -o -p ${f} -o -L ${f} ] ; then |
|
|
|
cp -a ${f} ${tfile} |
|
|
|
# else |
|
|
|
# cp $f $tfile |
|
|
|
# cp ${f} ${tfile} |
|
|
|
# fi |
|
|
|
|
|
|
|
file -L $f | grep -q ELF || continue |
|
|
|
libs="$libs `needed_libs $f`" |
|
|
|
done |
|
|
|
done < $x |
|
|
|
file -L ${f} | grep -q ELF || continue |
|
|
|
libs="${libs} `needed_libs ${f}`" |
|
|
|
done < <( find "${file}" ) |
|
|
|
done < ${x} |
|
|
|
done |
|
|
|
echo "done" |
|
|
|
|
|
|
|
echo -n "Copying required libraries ... " |
|
|
|
while [ -n "$libs" ] ; do |
|
|
|
oldlibs=$libs |
|
|
|
while [ -n "${libs}" ] ; do |
|
|
|
oldlibs=${libs} |
|
|
|
libs="" |
|
|
|
for x in $oldlibs ; do |
|
|
|
[ -e $targetdir/$x ] && continue |
|
|
|
mkdir -p $targetdir/${x%/*} |
|
|
|
cp $rootdir/$x $targetdir/$x |
|
|
|
file -L $rootdir/$x | grep -q ELF || continue |
|
|
|
for y in `needed_libs $rootdir/$x` ; do |
|
|
|
[ ! -e "$targetdir/$y" ] && libs="$libs $y" |
|
|
|
for x in ${oldlibs} ; do |
|
|
|
[ -e ${targetdir}/${x} ] && continue |
|
|
|
mkdir -p ${targetdir}/${x%/*} |
|
|
|
cp ${rootdir}/${x} ${targetdir}/${x} |
|
|
|
file -L ${rootdir}/${x} | grep -q ELF || continue |
|
|
|
for y in `needed_libs ${rootdir}/${x}` ; do |
|
|
|
[ ! -e "${targetdir}/${y}" ] && libs="${libs} ${y}" |
|
|
|
done |
|
|
|
done |
|
|
|
done |
|
|
|
@ -160,37 +161,37 @@ echo "Creating links for identical files ..." |
|
|
|
while read ck fn |
|
|
|
do |
|
|
|
# don't link empty files... |
|
|
|
if [ "$oldck" = "$ck" -a -s "$fn" ] ; then |
|
|
|
echo "\`- Found ${fn#$targetdir} -> ${oldfn#$targetdir}." |
|
|
|
rm $fn ; ln -s /${oldfn#$targetdir} $fn |
|
|
|
if [ "${oldck}" = "${ck}" -a -s "${fn}" ] ; then |
|
|
|
echo "\`- Found ${fn#${targetdir}} -> ${oldfn#${targetdir}}." |
|
|
|
rm ${fn} ; ln -s /${oldfn#${targetdir}} ${fn} |
|
|
|
else |
|
|
|
oldck=$ck ; oldfn=$fn |
|
|
|
oldck=${ck} ; oldfn=${fn} |
|
|
|
fi |
|
|
|
done < <( find $targetdir -type f | xargs md5sum | sort ) |
|
|
|
done < <( find ${targetdir} -type f | xargs md5sum | sort ) |
|
|
|
|
|
|
|
# though this is not clean, it helps avoid a warning from fsck about |
|
|
|
# it being unable to determine wether a filesystem is mounted. |
|
|
|
ln -s /proc/mounts $targetdir/etc/mtab |
|
|
|
ln -s /proc/mounts ${targetdir}/etc/mtab |
|
|
|
|
|
|
|
echo "Creating initrd filesystem image ($initrdfs): " |
|
|
|
case "$initrdfs" in |
|
|
|
echo "Creating initrd filesystem image (${initrdfs}): " |
|
|
|
case "${initrdfs}" in |
|
|
|
cramfs) |
|
|
|
[ "$block_size" == "" ] && block_size=4096 |
|
|
|
mkfs.cramfs -b $block_size $targetdir $initrd_img |
|
|
|
[ "${block_size}" == "" ] && block_size=4096 |
|
|
|
mkfs.cramfs -b ${block_size} ${targetdir} ${initrd_img} |
|
|
|
;; |
|
|
|
ramfs) |
|
|
|
# cp -a $targetdir/{linuxrc,init} |
|
|
|
( cd $targetdir ; find | cpio -o -c > $initrd_img ; ) |
|
|
|
# cp -a ${targetdir}/{linuxrc,init} |
|
|
|
( cd ${targetdir} ; find | cpio -o -c > ${initrd_img} ; ) |
|
|
|
;; |
|
|
|
ext2fs|ext3fs) |
|
|
|
[ "$block_size" == "" ] && block_size=1024 |
|
|
|
block_count=$(( ( 1024 * $ramdisk_size ) / $block_size )) |
|
|
|
[ "${block_size}" == "" ] && block_size=1024 |
|
|
|
block_count=$(( ( 1024 * ${ramdisk_size} ) / ${block_size} )) |
|
|
|
|
|
|
|
echo "Creating temporary files." |
|
|
|
tmpdir=`mktemp -d` ; mkdir -p $tmpdir |
|
|
|
dd if=/dev/zero of=$initrd_img bs=${block_size} count=$block_count &> /dev/null |
|
|
|
tmpdir=`mktemp -d` ; mkdir -p ${tmpdir} |
|
|
|
dd if=/dev/zero of=${initrd_img} bs=${block_size} count=${block_count} &> /dev/null |
|
|
|
tmpdev="`losetup -f 2>/dev/null`" |
|
|
|
if [ -z "$tmpdev" ] ; then |
|
|
|
if [ -z "${tmpdev}" ] ; then |
|
|
|
for x in /dev/loop* /dev/loop/* ; do |
|
|
|
[ -b "${x}" ] || continue |
|
|
|
losetup ${x} 2>&1 >/dev/null || tmpdev="${x}" |
|
|
|
@ -198,27 +199,27 @@ ext2fs|ext3fs) |
|
|
|
done |
|
|
|
if [ -z "${tmpdev}" ] ; then |
|
|
|
echo "No free loopback device found!" |
|
|
|
rm -f $tmpfile ; rmdir $tmpdir; exit 1 |
|
|
|
rm -f ${tmpfile} ; rmdir ${tmpdir}; exit 1 |
|
|
|
fi |
|
|
|
fi |
|
|
|
echo "Using loopback device $tmpdev." |
|
|
|
losetup "$tmpdev" $initrd_img |
|
|
|
echo "Using loopback device ${tmpdev}." |
|
|
|
losetup "${tmpdev}" ${initrd_img} |
|
|
|
|
|
|
|
echo "Writing initrd image file." |
|
|
|
mkfs.${initrdfs:0:4} -b $block_size -m 0 -N 360 -q $tmpdev &> /dev/null |
|
|
|
mount -t ${initrdfs:0:4} $tmpdev $tmpdir |
|
|
|
rmdir $tmpdir/lost+found/ |
|
|
|
cp -a $targetdir/* $tmpdir |
|
|
|
umount $tmpdir |
|
|
|
mkfs.${initrdfs:0:4} -b ${block_size} -m 0 -N 360 -q ${tmpdev} &> /dev/null |
|
|
|
mount -t ${initrdfs:0:4} ${tmpdev} ${tmpdir} |
|
|
|
rmdir ${tmpdir}/lost+found/ |
|
|
|
cp -a ${targetdir}/* ${tmpdir} |
|
|
|
umount ${tmpdir} |
|
|
|
|
|
|
|
echo "Removing temporary files." |
|
|
|
losetup -d $tmpdev |
|
|
|
rm -rf $tmpdir |
|
|
|
losetup -d ${tmpdev} |
|
|
|
rm -rf ${tmpdir} |
|
|
|
;; |
|
|
|
esac |
|
|
|
|
|
|
|
echo "Compressing initrd image file." |
|
|
|
gzip -9 -c $initrd_img > $initrd_img.gz |
|
|
|
gzip -9 -c ${initrd_img} > ${initrd_img}.gz |
|
|
|
|
|
|
|
rm -rf $targetdir |
|
|
|
rm -rf ${targetdir} |
|
|
|
echo "Done." |
Benjamin Schieder
20 years ago