--- boot/grub2/grub2.mk	2016-06-29 12:30:25.160051200 +0200
+++ /mnt/Dane/buildroot-2016.05/boot/grub2/grub2.mk	2016-05-31 23:52:36.000000000 +0200
@@ -74,6 +74,13 @@

 GRUB2_INSTALL_TARGET_OPTS = DESTDIR=$(HOST_DIR) install

+ifeq ($(BR2_TARGET_GRUB2_I386_PC),y)
+define GRUB2_IMAGE_INSTALL_ELTORITO
+	cat $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE)/cdboot.img $(GRUB2_IMAGE) > \
+		$(BINARIES_DIR)/grub-eltorito.img
+endef
+endif
+
 define GRUB2_IMAGE_INSTALLATION
 	mkdir -p $(dir $(GRUB2_IMAGE))
 	$(HOST_DIR)/usr/bin/grub-mkimage \
@@ -85,6 +92,7 @@
 		$(GRUB2_BUILTIN_MODULES)
 	mkdir -p $(dir $(GRUB2_CFG))
 	$(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG)
+	$(GRUB2_IMAGE_INSTALL_ELTORITO)
 endef
 GRUB2_POST_INSTALL_TARGET_HOOKS += GRUB2_IMAGE_INSTALLATION