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67f07b7c9e
- Add luks2 to GRUB_MODULES - 20-grub-install: Create a symvers.gz symbolic link - 20-grub-install: Always use fedora as the boot entry --class Resolves: rhbz#1957014 - grub.macros: Install font in /boot/grub2 instead of the ESP Resolves: rhbz#1739762 - grub.macros: Use consistent file mode for legacy and EFI Resolves: rhbz#1965794 - Drop grub2 prelink configuration Resolves: rhbz#1659675 - Remove triggers needed to upgrade from legacy GRUB - Don't harcode grub2 in the spec file - Update to unifont-13.0.06 Resolves: rhbz#1939125 - 20-grub-install: Use relative paths for btrfs in BLS snippets Resolves: rhbz#1906191 - Don't update the cmdline when generating legacy menuentry commands - Suppress gettext error message Resolves: rhbz#1592124 - grub-boot-success.timer: Only run if not in a container Resolves: rhbz#1914571 - grub-set-password: Always use /boot/grub2/user.cfg as password default Resolves: rhbz#1955294 - Remove outdated URL for BLS document Resolves: rhbz#1926453 - templates: Check for EFI at runtime instead of config generation time Resolves: rhbz#1823864 - efi: Print an error if boot to firmware setup is not supported Resolves: rhbz#1823864 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
92 lines
2.9 KiB
Diff
92 lines
2.9 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: Tue, 6 Jul 2021 01:10:18 +0200
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Subject: [PATCH] efi: Print an error if boot to firmware setup is not
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supported
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The "fwsetup" command is only registered if the firmware supports booting
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to the firmware setup UI. But it could be possible that the GRUB config
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already contains a "fwsetup" entry, because it was generated in a machine
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that has support for this feature.
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To prevent users getting a "can't find command `fwsetup`" error if it is
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not supported by the firmware, let's just always register the command but
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print a more accurate message if the firmware doesn't support this option.
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Resolves: rhbz#1823864
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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grub-core/commands/efi/efifwsetup.c | 43 ++++++++++++++++++++-----------------
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1 file changed, 23 insertions(+), 20 deletions(-)
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diff --git a/grub-core/commands/efi/efifwsetup.c b/grub-core/commands/efi/efifwsetup.c
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index eaca0328388..328c45e82e0 100644
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--- a/grub-core/commands/efi/efifwsetup.c
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+++ b/grub-core/commands/efi/efifwsetup.c
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@@ -27,6 +27,25 @@
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GRUB_MOD_LICENSE ("GPLv3+");
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+static grub_efi_boolean_t
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+efifwsetup_is_supported (void)
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+{
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+ grub_efi_uint64_t *os_indications_supported = NULL;
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+ grub_size_t oi_size = 0;
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+ grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID;
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+
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+ grub_efi_get_variable ("OsIndicationsSupported", &global, &oi_size,
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+ (void **) &os_indications_supported);
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+
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+ if (!os_indications_supported)
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+ return 0;
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+
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+ if (*os_indications_supported & GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI)
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+ return 1;
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+
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+ return 0;
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+}
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+
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static grub_err_t
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grub_cmd_fwsetup (grub_command_t cmd __attribute__ ((unused)),
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int argc __attribute__ ((unused)),
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@@ -38,6 +57,10 @@ grub_cmd_fwsetup (grub_command_t cmd __attribute__ ((unused)),
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grub_size_t oi_size;
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grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID;
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+ if (!efifwsetup_is_supported ())
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+ return grub_error (GRUB_ERR_INVALID_COMMAND,
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+ N_("Reboot to firmware setup is not supported"));
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+
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grub_efi_get_variable ("OsIndications", &global, &oi_size,
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(void **) &old_os_indications);
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@@ -56,28 +79,8 @@ grub_cmd_fwsetup (grub_command_t cmd __attribute__ ((unused)),
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static grub_command_t cmd = NULL;
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-static grub_efi_boolean_t
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-efifwsetup_is_supported (void)
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-{
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- grub_efi_uint64_t *os_indications_supported = NULL;
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- grub_size_t oi_size = 0;
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- grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID;
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-
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- grub_efi_get_variable ("OsIndicationsSupported", &global, &oi_size,
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- (void **) &os_indications_supported);
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-
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- if (!os_indications_supported)
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- return 0;
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-
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- if (*os_indications_supported & GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI)
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- return 1;
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-
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- return 0;
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-}
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-
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GRUB_MOD_INIT (efifwsetup)
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{
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- if (efifwsetup_is_supported ())
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cmd = grub_register_command ("fwsetup", grub_cmd_fwsetup, NULL,
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N_("Reboot into firmware setup menu."));
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