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-rw-r--r--docs/grub.texi19
-rw-r--r--util/grub-mkconfig.in8
-rw-r--r--util/grub.d/10_linux.in33
3 files changed, 54 insertions, 6 deletions
diff --git a/docs/grub.texi b/docs/grub.texi
index 137b894fa..65b4bbeda 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -1398,6 +1398,25 @@ for all respectively normal entries.
The values of these options replace the values of @samp{GRUB_CMDLINE_LINUX}
and @samp{GRUB_CMDLINE_LINUX_DEFAULT} for Linux and Xen menu entries.
+@item GRUB_EARLY_INITRD_LINUX_CUSTOM
+@itemx GRUB_EARLY_INITRD_LINUX_STOCK
+List of space-separated early initrd images to be loaded from @samp{/boot}.
+This is for loading things like CPU microcode, firmware, ACPI tables, crypto
+keys, and so on. These early images will be loaded in the order declared,
+and all will be loaded before the actual functional initrd image.
+
+@samp{GRUB_EARLY_INITRD_LINUX_STOCK} is for your distribution to declare
+images that are provided by the distribution. It should not be modified
+without understanding the consequences. They will be loaded first.
+
+@samp{GRUB_EARLY_INITRD_LINUX_CUSTOM} is for your custom created images.
+
+The default stock images are as follows, though they may be overridden by
+your distribution:
+@example
+intel-uc.img intel-ucode.img amd-uc.img amd-ucode.img early_ucode.cpio microcode.cpio
+@end example
+
@item GRUB_DISABLE_LINUX_UUID
Normally, @command{grub-mkconfig} will generate menu entries that use
universally-unique identifiers (UUIDs) to identify the root filesystem to
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
index f8496d28b..35ef583b0 100644
--- a/util/grub-mkconfig.in
+++ b/util/grub-mkconfig.in
@@ -147,6 +147,12 @@ if [ x"$GRUB_FS" = xunknown ]; then
GRUB_FS="$(stat -f --printf=%T / || echo unknown)"
fi
+# Provide a default set of stock linux early initrd images.
+# Define here so the list can be modified in the sourced config file.
+if [ "x${GRUB_EARLY_INITRD_LINUX_STOCK}" = "x" ]; then
+ GRUB_EARLY_INITRD_LINUX_STOCK="intel-uc.img intel-ucode.img amd-uc.img amd-ucode.img early_ucode.cpio microcode.cpio"
+fi
+
if test -f ${sysconfdir}/default/grub ; then
. ${sysconfdir}/default/grub
fi
@@ -211,6 +217,8 @@ export GRUB_DEFAULT \
GRUB_CMDLINE_NETBSD \
GRUB_CMDLINE_NETBSD_DEFAULT \
GRUB_CMDLINE_GNUMACH \
+ GRUB_EARLY_INITRD_LINUX_CUSTOM \
+ GRUB_EARLY_INITRD_LINUX_STOCK \
GRUB_TERMINAL_INPUT \
GRUB_TERMINAL_OUTPUT \
GRUB_SERIAL_COMMAND \
diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
index de9044c7f..faedf74e1 100644
--- a/util/grub.d/10_linux.in
+++ b/util/grub.d/10_linux.in
@@ -136,9 +136,13 @@ EOF
if test -n "${initrd}" ; then
# TRANSLATORS: ramdisk isn't identifier. Should be translated.
message="$(gettext_printf "Loading initial ramdisk ...")"
+ initrd_path=
+ for i in ${initrd}; do
+ initrd_path="${initrd_path} ${rel_dirname}/${i}"
+ done
sed "s/^/$submenu_indentation/" << EOF
echo '$(echo "$message" | grub_quote)'
- initrd ${rel_dirname}/${initrd}
+ initrd $(echo $initrd_path)
EOF
fi
sed "s/^/$submenu_indentation/" << EOF
@@ -188,7 +192,15 @@ while [ "x$list" != "x" ] ; do
alt_version=`echo $version | sed -e "s,\.old$,,g"`
linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
- initrd=
+ initrd_early=
+ for i in ${GRUB_EARLY_INITRD_LINUX_STOCK} \
+ ${GRUB_EARLY_INITRD_LINUX_CUSTOM}; do
+ if test -e "${dirname}/${i}" ; then
+ initrd_early="${initrd_early} ${i}"
+ fi
+ done
+
+ initrd_real=
for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
"initrd-${version}" "initramfs-${version}.img" \
"initrd.img-${alt_version}" "initrd-${alt_version}.img" \
@@ -198,11 +210,22 @@ while [ "x$list" != "x" ] ; do
"initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
"initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do
if test -e "${dirname}/${i}" ; then
- initrd="$i"
+ initrd_real="${i}"
break
fi
done
+ initrd=
+ if test -n "${initrd_early}" || test -n "${initrd_real}"; then
+ initrd="${initrd_early} ${initrd_real}"
+
+ initrd_display=
+ for i in ${initrd}; do
+ initrd_display="${initrd_display} ${dirname}/${i}"
+ done
+ gettext_printf "Found initrd image: %s\n" "$(echo $initrd_display)" >&2
+ fi
+
config=
for i in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
if test -e "${i}" ; then
@@ -216,9 +239,7 @@ while [ "x$list" != "x" ] ; do
initramfs=`grep CONFIG_INITRAMFS_SOURCE= "${config}" | cut -f2 -d= | tr -d \"`
fi
- if test -n "${initrd}" ; then
- gettext_printf "Found initrd image: %s\n" "${dirname}/${initrd}" >&2
- elif test -z "${initramfs}" ; then
+ if test -z "${initramfs}" && test -z "${initrd_real}" ; then
# "UUID=" and "ZFS=" magic is parsed by initrd or initramfs. Since there's
# no initrd or builtin initramfs, it can't work here.
linux_root_device_thisversion=${GRUB_DEVICE}