grub2/0082-Add-fw_path-variable-revised.patch
Peter Jones 81987f4958 Update grub2 for f28
- Try to fix things for new compiler madness.
  I really don't know why gcc decided __attribute__((packed)) on a "typedef
  struct" should imply __attribute__((align (1))) and that it should have a
  warning that it does so.  The obvious behavior would be to keep the alignment
  of the first element unless it's used in another object or type that /also/
  hask the packed attribute.  Why should it change the default alignment at
  all?
- Merge in the BLS patches Javier and I wrote.
- Attempt to fix pmtimer initialization failures to not be super duper slow.

Signed-off-by: Peter Jones <pjones@redhat.com>
2018-02-28 09:40:44 -05:00

82 lines
2.3 KiB
Diff

From bcb1f1a6a5530ecbc4b674e61acbb406592714c6 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 082/206] 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 9cad0c4485c..8ab7794c47b 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 249e19bc788..759c475c4d9 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)
--
2.15.0