From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Thu, 16 Apr 2020 18:53:05 +0200
Subject: [PATCH] 10_linux.in: Enable BLS configuration if new-kernel-pkg isn't
 present

Currently if the the GRUB_ENABLE_BLSCFG option in /etc/default/grub hasn't
been set, the 10_linux script will generate a GRUB configuration that does
not include the blscfg command to populate the menu entries from BLS files.

But on kernel install the /usr/lib/kernel/install.d/20-grub.install script
will only add menuentry commands to the GRUB config file if the old grubby
tool and new-kernel-pkg script are installed.

So a configuration with the GRUB_ENABLE_BLSCFG option will lead to a setup
where new kernel entries are not added. Make a BLS config the default if
that option wasn't set and the new-kernel-pkg script is not present.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
 util/grub.d/10_linux.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
index c72cc3246bb..847646bd8a8 100644
--- a/util/grub.d/10_linux.in
+++ b/util/grub.d/10_linux.in
@@ -164,6 +164,11 @@ populate_menu()
     printf "$menu"
 }
 
+# Make BLS the default if GRUB_ENABLE_BLSCFG was not set and grubby is not installed.
+if [ -z "${GRUB_ENABLE_BLSCFG}" ] && [ -z "$(which new-kernel-pkg 2> /dev/null)" ]; then
+	  GRUB_ENABLE_BLSCFG="true"
+fi
+
 if [ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]; then
   if [ x$dirname = x/ ]; then
     if [ -z "${prepare_root_cache}" ]; then