grub2/0019-Add-fw_path-variable-revised.patch
Peter Jones 9d15b4d492 Update to be newer than f24's branch.
- Add grub2-get-kernel-settings
  Related: rhbz#1226325

Signed-off-by: Peter Jones <pjones@redhat.com>
2016-11-18 16:02:43 -05:00

81 lines
2.3 KiB
Diff

From fdc52554d998170f56ed45856082f4a3bfeb3e2a Mon Sep 17 00:00:00 2001
From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
Date: Wed, 19 Sep 2012 21:22:55 -0300
Subject: [PATCH 19/87] Add fw_path variable (revised)
This patch makes grub look for its config file on efi where the app was
found. It was originally written by Matthew Garrett, and adapted to fix the
"No modules are loaded on grub2 network boot" issue:
https://bugzilla.redhat.com/show_bug.cgi?id=857936
---
grub-core/kern/main.c | 13 ++++++-------
grub-core/normal/main.c | 25 ++++++++++++++++++++++++-
2 files changed, 30 insertions(+), 8 deletions(-)
diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
index 9cad0c4..8ab7794 100644
--- a/grub-core/kern/main.c
+++ b/grub-core/kern/main.c
@@ -127,16 +127,15 @@ grub_set_prefix_and_root (void)
grub_machine_get_bootlocation (&fwdevice, &fwpath);
- if (fwdevice)
+ if (fwdevice && fwpath)
{
- char *cmdpath;
+ char *fw_path;
- cmdpath = grub_xasprintf ("(%s)%s", fwdevice, fwpath ? : "");
- if (cmdpath)
+ fw_path = grub_xasprintf ("(%s)/%s", fwdevice, fwpath);
+ if (fw_path)
{
- grub_env_set ("cmdpath", cmdpath);
- grub_env_export ("cmdpath");
- grub_free (cmdpath);
+ grub_env_set ("fw_path", fw_path);
+ grub_free (fw_path);
}
}
diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
index 249e19b..759c475 100644
--- a/grub-core/normal/main.c
+++ b/grub-core/normal/main.c
@@ -338,7 +338,30 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ ((unused)),
/* Guess the config filename. It is necessary to make CONFIG static,
so that it won't get broken by longjmp. */
char *config;
- const char *prefix;
+ const char *prefix, *fw_path;
+
+ fw_path = grub_env_get ("fw_path");
+ if (fw_path)
+ {
+ config = grub_xasprintf ("%s/grub.cfg", fw_path);
+ if (config)
+ {
+ grub_file_t file;
+
+ file = grub_file_open (config);
+ if (file)
+ {
+ grub_file_close (file);
+ grub_enter_normal_mode (config);
+ }
+ else
+ {
+ /* Ignore all errors. */
+ grub_errno = 0;
+ }
+ grub_free (config);
+ }
+ }
prefix = grub_env_get ("prefix");
if (prefix)
--
2.7.4