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81 lines
2.3 KiB
81 lines
2.3 KiB
From 622dd3cf5628440c92f4da46c40f39639d7e98e8 Mon Sep 17 00:00:00 2001 |
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From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com> |
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Date: Wed, 19 Sep 2012 21:22:55 -0300 |
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Subject: [PATCH 090/237] Add fw_path variable (revised) |
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This patch makes grub look for its config file on efi where the app was |
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found. It was originally written by Matthew Garrett, and adapted to fix the |
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"No modules are loaded on grub2 network boot" issue: |
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https://bugzilla.redhat.com/show_bug.cgi?id=857936 |
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--- |
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grub-core/kern/main.c | 13 ++++++------- |
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grub-core/normal/main.c | 25 ++++++++++++++++++++++++- |
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2 files changed, 30 insertions(+), 8 deletions(-) |
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diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c |
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index 9cad0c4..8ab7794 100644 |
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--- a/grub-core/kern/main.c |
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+++ b/grub-core/kern/main.c |
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@@ -127,16 +127,15 @@ grub_set_prefix_and_root (void) |
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grub_machine_get_bootlocation (&fwdevice, &fwpath); |
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- if (fwdevice) |
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+ if (fwdevice && fwpath) |
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{ |
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- char *cmdpath; |
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+ char *fw_path; |
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- cmdpath = grub_xasprintf ("(%s)%s", fwdevice, fwpath ? : ""); |
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- if (cmdpath) |
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+ fw_path = grub_xasprintf ("(%s)/%s", fwdevice, fwpath); |
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+ if (fw_path) |
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{ |
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- grub_env_set ("cmdpath", cmdpath); |
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- grub_env_export ("cmdpath"); |
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- grub_free (cmdpath); |
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+ grub_env_set ("fw_path", fw_path); |
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+ grub_free (fw_path); |
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} |
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} |
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diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c |
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index 3a926fc..6f4970f 100644 |
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--- a/grub-core/normal/main.c |
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+++ b/grub-core/normal/main.c |
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@@ -319,7 +319,30 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ ((unused)), |
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/* Guess the config filename. It is necessary to make CONFIG static, |
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so that it won't get broken by longjmp. */ |
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char *config; |
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- const char *prefix; |
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+ const char *prefix, *fw_path; |
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+ |
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+ fw_path = grub_env_get ("fw_path"); |
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+ if (fw_path) |
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+ { |
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+ config = grub_xasprintf ("%s/grub.cfg", fw_path); |
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+ if (config) |
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+ { |
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+ grub_file_t file; |
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+ |
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+ file = grub_file_open (config); |
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+ if (file) |
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+ { |
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+ grub_file_close (file); |
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+ grub_enter_normal_mode (config); |
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+ } |
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+ else |
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+ { |
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+ /* Ignore all errors. */ |
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+ grub_errno = 0; |
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+ } |
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+ grub_free (config); |
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+ } |
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+ } |
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prefix = grub_env_get ("prefix"); |
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if (prefix) |
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-- |
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2.9.3 |
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