From: Fedora Ninjas <grub2-ow...@fedoraproject.org>

When PXE booting via UEFI firmware, grub was searching for grub.cfg
in the fw_path directory where the grub application was found. If
that didn't exist, a fallback search would look for config file names
based on MAC and IP address. However, the search would look in the
prefix directory which may not be the same fw_path. This patch
changes that behavior to use the fw_path directory for the fallback
search. Only if fw_path is NULL will the prefix directory be searched.

Signed-off-by: Mark Salter <msal...@redhat.com>
---
 grub-core/normal/main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
index 08f48c71d..fd8be685a 100644
--- a/grub-core/normal/main.c
+++ b/grub-core/normal/main.c
@@ -341,7 +341,7 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ 
((unused)),
       char *config;
       const char *prefix, *fw_path;
 
-      fw_path = grub_env_get ("fw_path");
+      prefix = fw_path = grub_env_get ("fw_path");
       if (fw_path)
        {
          config = grub_xasprintf ("%s/grub.cfg", fw_path);
@@ -364,7 +364,8 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ 
((unused)),
            }
        }
 
-      prefix = grub_env_get ("prefix");
+      if (! prefix)
+             prefix = grub_env_get ("prefix");
       if (prefix)
         {
           grub_size_t config_len;
-- 
2.46.2


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