@ -226,6 +226,7 @@ Creates initial ramdisk images for preloading modules
@@ -226,6 +226,7 @@ Creates initial ramdisk images for preloading modules
otherwise you will not be able to boot.
--no-compress Do not compress the generated initramfs. This will
override any other compression options.
--enhanced-cpio Attempt to reflink cpio file data using dracut-cpio.
--list-modules List all available dracut modules.
-M, --show-modules Print included module's name to standard output during
build.
@ -412,6 +413,7 @@ rearrange_params() {
@@ -412,6 +413,7 @@ rearrange_params() {
--long zstd \
--long no-compress \
--long gzip \
--long enhanced-cpio \
--long list-modules \
--long show-modules \
--long keep \
@ -770,6 +772,7 @@ while :; do
@@ -770,6 +772,7 @@ while :; do
--zstd) compress_l="zstd" ;;
--no-compress) _no_compress_l="cat" ;;
--gzip) compress_l="gzip" ;;
--enhanced-cpio) enhanced_cpio_l="yes" ;;
--list-modules) do_list="yes" ;;
-M | --show-modules)
show_modules_l="yes"
@ -982,6 +985,7 @@ stdloglvl=$((stdloglvl + verbosity_mod_l))
@@ -982,6 +985,7 @@ stdloglvl=$((stdloglvl + verbosity_mod_l))
[[ $tmpdir ]] || tmpdir="$dracutsysrootdir"/var/tmp
[[ $INITRD_COMPRESS ]] && compress=$INITRD_COMPRESS
[[ $compress_l ]] && compress=$compress_l
[[ $enhanced_cpio_l ]] && enhanced_cpio=$enhanced_cpio_l
[[ $show_modules_l ]] && show_modules=$show_modules_l
[[ $nofscks_l ]] && nofscks="yes"
[[ $ro_mnt_l ]] && ro_mnt="yes"
@ -1188,6 +1192,19 @@ else
@@ -1188,6 +1192,19 @@ else
exit 1
fi
if [[ $enhanced_cpio == "yes" ]]; then
enhanced_cpio="$dracutbasedir/dracut-cpio"
if [[ -x $enhanced_cpio ]]; then
# align based on statfs optimal transfer size
cpio_align=$(stat --file-system -c "%s" -- "$initdir")
else
dinfo "--enhanced-cpio ignored due to lack of dracut-cpio"
unset enhanced_cpio
fi
else
unset enhanced_cpio
fi
# shellcheck disable=SC2154
if [[ $no_kernel != yes ]] && ! [[ -d $srcmods ]]; then
printf "%s\n" "dracut: Cannot find module directory $srcmods" >&2
@ -2252,6 +2269,8 @@ if dracut_module_included "squash"; then
@@ -2252,6 +2269,8 @@ if dracut_module_included "squash"; then
fi
if [[ $do_strip == yes ]] && ! [[ $DRACUT_FIPS_MODE ]]; then
# stripping files negates (dedup) benefits of using reflink
[[ -n $enhanced_cpio ]] && ddebug "strip is enabled alongside cpio reflink"
dinfo "*** Stripping files ***"
find "$initdir" -type f \
-executable -not -path '*/lib/modules/*.ko' -print0 \
@ -2322,15 +2341,29 @@ if [[ $create_early_cpio == yes ]]; then
@@ -2322,15 +2341,29 @@ if [[ $create_early_cpio == yes ]]; then
fi
# The microcode blob is _before_ the initramfs blob, not after
if ! (
umask 077
cd "$early_cpio_dir/d"
find . -print0 | sort -z \
| cpio ${CPIO_REPRODUCIBLE:+--reproducible} --null \
${cpio_owner:+-R "$cpio_owner"} -H newc -o --quiet > "${DRACUT_TMPDIR}/initramfs.img"
); then
dfatal "dracut: creation of $outfile failed"
exit 1
if [[ -n $enhanced_cpio ]]; then
if ! (
umask 077
cd "$early_cpio_dir/d"
find . -print0 | sort -z \
| $enhanced_cpio --null ${cpio_owner:+--owner "$cpio_owner"} \
--mtime 0 --data-align "$cpio_align" --truncate-existing \
"${DRACUT_TMPDIR}/initramfs.img"
); then
dfatal "dracut-cpio: creation of $outfile failed"
exit 1
fi
else
if ! (
umask 077
cd "$early_cpio_dir/d"
find . -print0 | sort -z \
| cpio ${CPIO_REPRODUCIBLE:+--reproducible} --null \
${cpio_owner:+-R "$cpio_owner"} -H newc -o --quiet > "${DRACUT_TMPDIR}/initramfs.img"
); then
dfatal "dracut: creation of $outfile failed"
exit 1
fi
fi
fi
@ -2386,15 +2419,41 @@ if [[ $compress == $DRACUT_COMPRESS_ZSTD* ]] && ! check_kernel_config CONFIG_RD_
@@ -2386,15 +2419,41 @@ if [[ $compress == $DRACUT_COMPRESS_ZSTD* ]] && ! check_kernel_config CONFIG_RD_
compress="cat"
fi
if ! (
umask 077
cd "$initdir"
find . -print0 | sort -z \
| cpio ${CPIO_REPRODUCIBLE:+--reproducible} --null ${cpio_owner:+-R "$cpio_owner"} -H newc -o --quiet \
| $compress >> "${DRACUT_TMPDIR}/initramfs.img"
); then
dfatal "dracut: creation of $outfile failed"
exit 1
if [[ -n $enhanced_cpio ]]; then
if [[ $compress == "cat" ]]; then
# dracut-cpio appends by default, so any ucode remains
cpio_outfile="${DRACUT_TMPDIR}/initramfs.img"
else
ddebug "$compress compression enabled alongside cpio reflink"
# dracut-cpio doesn't output to stdout, so stage for compression
cpio_outfile="${DRACUT_TMPDIR}/initramfs.img.uncompressed"
fi
if ! (
umask 077
cd "$initdir"
find . -print0 | sort -z \
| $enhanced_cpio --null ${cpio_owner:+--owner "$cpio_owner"} \
--mtime 0 --data-align "$cpio_align" "$cpio_outfile" || exit 1
[[ $compress == "cat" ]] && exit 0
$compress < "$cpio_outfile" >> "${DRACUT_TMPDIR}/initramfs.img" \
&& rm "$cpio_outfile"
); then
dfatal "dracut-cpio: creation of $outfile failed"
exit 1
fi
unset cpio_outfile
else
if ! (
umask 077
cd "$initdir"
find . -print0 | sort -z \
| cpio ${CPIO_REPRODUCIBLE:+--reproducible} --null ${cpio_owner:+-R "$cpio_owner"} -H newc -o --quiet \
| $compress >> "${DRACUT_TMPDIR}/initramfs.img"
); then
dfatal "dracut: creation of $outfile failed"
exit 1
fi
fi
# shellcheck disable=SC2154