https://gitlab.freedesktop.org/gnu-grub/grub/-/merge_requests/10

From 129588e498647842c6f13f7809ef9ac583e2351b Mon Sep 17 00:00:00 2001
From: Egor Ignatov <egori@altlinux.org>
Date: Thu, 19 Mar 2026 17:22:11 +0500
Subject: [PATCH] util/grub.d/00_header.in: Load efi_uga only on x86 EFI
 platforms

The efi_uga module is only built for i386-efi and x86_64-efi firmware), but
commit ea0b76dc4a ("Disable loading all_video for EFI") loads it unconditionally
on all EFI platforms. This causes a "file not found" error on aarch64-efi and
other non-x86 EFI targets.

Guard the insmod with a $grub_cpu check so the module is only
loaded where it is actually available.

Fixes: ea0b76dc4 ("util/grub.d/00_header.in: Disable loading all_video for EFI")

Signed-off-by: Egor Ignatov <egori@altlinux.org>
---
 util/grub.d/00_header.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/util/grub.d/00_header.in b/util/grub.d/00_header.in
index 77834cfaf..1afe41e67 100644
--- a/util/grub.d/00_header.in
+++ b/util/grub.d/00_header.in
@@ -135,7 +135,9 @@ else # GRUB_FORCE_EFI_ALL_VIDEO is not set true
     cat <<EOF
   if [ x\$grub_platform = xefi ]; then
     insmod efi_gop
-    insmod efi_uga
+    if [ x\$grub_cpu = xi386 -o x\$grub_cpu = xx86_64 ]; then
+      insmod efi_uga
+    fi
   elif [ x\$feature_all_video_module = xy ]; then
 EOF
 fi # end GRUB_FORCE_EFI_ALL_VIDEO
-- 
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