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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: Tue, 11 Aug 2020 13:16:39 +0200
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Subject: [PATCH] blscfg: Always look for BLS snippets in the root device
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The blscfg command trying to load the BLS snippets from different devices
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is a left over from when these where located in the ESP in the EFI case.
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But now that are always located in the /boot directory, the BLS snippets
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have to be loaded from the root device just like the other files that are
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in the /boot directory (kernel and initrd images).
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This only worked for legacy BIOS because the boot and root variables were
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set to the same value. But doesn't work when trying to use a common GRUB
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config file that could be shared between an EFI and legacy BIOS install.
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That kind of configuration is needed for example on hybrid images that are
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booted using either EFI or legacy BIOS firmwares.
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Resolves: rhbz#1850193
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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 | 6 ++----
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1 file changed, 2 insertions(+), 4 deletions(-)
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diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
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index c92e1c84543..70ce5c7bf6f 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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@@ -874,14 +874,12 @@ grub_cmd_blscfg (grub_extcmd_context_t ctxt UNUSED,
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#ifdef GRUB_MACHINE_EMU
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devid = "host";
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-#elif defined(GRUB_MACHINE_EFI)
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+#else
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devid = grub_env_get ("root");
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-#else
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- devid = grub_env_get ("boot");
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#endif
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if (!devid)
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return grub_error (GRUB_ERR_FILE_NOT_FOUND,
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- N_("variable `%s' isn't set"), "boot");
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+ N_("variable `%s' isn't set"), "root");
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grub_dprintf ("blscfg", "opening %s\n", devid);
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dev = grub_device_open (devid);
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