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59 lines
2.2 KiB
Diff
59 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Wed, 18 Jul 2018 08:08:06 +0200
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Subject: [PATCH] blscfg: Fallback to search BLS snippets in
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/boot/loader/entries
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The default path to search the BLS snippets is /loader/entries, this is
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only a correct assumption if $root ($root) is a boot partition but it's
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not true if /boot isn't a mount point.
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A user can set a blsdir grub environment variable to choose a different
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path, but instead of failing when /boot is a directory inside the root
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partition fallback to search the BLS in /boot/loader/entries to cover
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that case as well.
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Reported-by: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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grub-core/commands/blscfg.c | 13 ++++++++++++-
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1 file changed, 12 insertions(+), 1 deletion(-)
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diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
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index 80d8814fc3f..321c93069f2 100644
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--- a/grub-core/commands/blscfg.c
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+++ b/grub-core/commands/blscfg.c
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@@ -692,6 +692,7 @@ static int find_entry (const char *filename,
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grub_device_t blsdir_dev = NULL;
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const char *blsdir = NULL;
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char *saved_env_buf = NULL;
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+ int fallback = 0;
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int r = 0;
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const char *devid = grub_env_get ("boot");
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@@ -797,7 +798,9 @@ static int find_entry (const char *filename,
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}
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read_entry_info.dirname = blsdir;
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- r = blsdir_fs->dir (blsdir_dev, blsdir, read_entry, &read_entry_info);
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+read_fallback:
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+ r = blsdir_fs->dir (blsdir_dev, read_entry_info.dirname, read_entry,
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+ &read_entry_info);
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if (r != 0) {
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grub_dprintf ("blscfg", "read_entry returned error\n");
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grub_err_t e;
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@@ -807,6 +810,14 @@ static int find_entry (const char *filename,
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} while (e);
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}
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+ if (!nentries && !fallback && info->platform != PLATFORM_EMU) {
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+ read_entry_info.dirname = "/boot" GRUB_BLS_CONFIG_PATH;
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+ grub_dprintf ("blscfg", "Entries weren't found in %s, fallback to %s\n",
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+ blsdir, read_entry_info.dirname);
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+ fallback = 1;
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+ goto read_fallback;
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+ }
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+
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grub_dprintf ("blscfg", "Sorting %d entries\n", nentries);
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grub_qsort(&entries[0], nentries, sizeof (struct bls_entry *), bls_cmp, NULL);
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