File 0008-blscfg-reading-bls-fragments-if-boot-present.patch of Package grub2

From 2b0e6effc31ec166bbbe35a3cd2b4c73051f38bb Mon Sep 17 00:00:00 2001
From: Michael Chang <mchang@suse.com>
Date: Fri, 16 Jun 2023 15:54:50 +0800
Subject: [PATCH 8/9] blscfg: reading bls fragments if boot present

The Boot Loader Specification (BLS) designates the EFI System Partition
(ESP) as a primary location for $BOOT, where boot menu entries can be
stored. The specification encourages boot loaders to retrieve menu
entries from the ESP, even when XBOOTLDR is present.

This commit aligns with the BLS specification by introducing the
capability to search for the ESP in addition to the default root
partition or any specified location via blscfg's command line. The $boot
environment variable is utilized as a reference to the ESP device for
the blscfg command. Initialization of $boot in grub.cfg is demonstrated
as follows:

  insmod part_gpt
  insmod fat
  search --no-floppy --fs-uuid --set=boot F414-5A9F

If $boot is unset, no additional search for the BLS location will be
performed.

Signed-off-by: Michael Chang <mchang@suse.com>
---
 grub-core/commands/blscfg.c | 10 ++++++++++
 util/grub.d/10_linux.in     |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
index c872bcef0..cbe2a289e 100644
--- a/grub-core/commands/blscfg.c
+++ b/grub-core/commands/blscfg.c
@@ -1186,6 +1186,7 @@ grub_cmd_blscfg (grub_extcmd_context_t ctxt UNUSED,
   char *entry_id = NULL;
   bool show_default = true;
   bool show_non_default = true;
+  const char *boot = NULL;
 
   if (argc == 1) {
     if (grub_strcmp (args[0], "default") == 0) {
@@ -1205,6 +1206,15 @@ grub_cmd_blscfg (grub_extcmd_context_t ctxt UNUSED,
   if (r)
     return r;
 
+  boot = grub_env_get("boot");
+  path = (boot) ? grub_xasprintf("(%s)" GRUB_BLS_CONFIG_PATH, boot) : NULL;
+  if (path)
+    {
+      bls_load_entries(path);
+      grub_print_error();
+    }
+  grub_free(path);
+
   return bls_create_entries(show_default, show_non_default, entry_id);
 }
 
diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
index 45eefb332..edf0fca55 100644
--- a/util/grub.d/10_linux.in
+++ b/util/grub.d/10_linux.in
@@ -201,7 +201,8 @@ populate_menu()
 }
 
 # Make BLS the default if GRUB_ENABLE_BLSCFG was not set and grubby is not installed.
-if [ -z "${GRUB_ENABLE_BLSCFG}" ] && ! command -v new-kernel-pkg >/dev/null; then
+# FIXME: The test should be aligned to openSUSE, grubby is not our default tool  
+if [ -z "${GRUB_ENABLE_BLSCFG}" ] && ! command -v new-kernel-pkg >/dev/null && false; then
 	  GRUB_ENABLE_BLSCFG="true"
 fi
 
-- 
2.44.0