![]() There are some packaging problems in some distributions that lead to TSS stack emitting warnings that will fail self tests. These don't occur as root, and furthermore those distributions run CI as root already. And in the dell plugin make it non-fatal to have TPM register read failures in case the system has TPM1.2 not TPM2.0 |
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.. | ||
efi | ||
tests | ||
fu-plugin-uefi.c | ||
fu-self-test.c | ||
fu-ucs2.c | ||
fu-ucs2.h | ||
fu-uefi-bgrt.c | ||
fu-uefi-bgrt.h | ||
fu-uefi-bootmgr.c | ||
fu-uefi-bootmgr.h | ||
fu-uefi-common.c | ||
fu-uefi-common.h | ||
fu-uefi-device.c | ||
fu-uefi-device.h | ||
fu-uefi-devpath.c | ||
fu-uefi-devpath.h | ||
fu-uefi-pcrs.c | ||
fu-uefi-pcrs.h | ||
fu-uefi-tool.c | ||
fu-uefi-update-info.c | ||
fu-uefi-update-info.h | ||
fu-uefi-vars.c | ||
fu-uefi-vars.h | ||
meson.build | ||
README.md | ||
uefi.conf | ||
uefi.quirk |
UEFI Support
Introduction
The Unified Extensible Firmware Interface (UEFI) is a specification that defines the software interface between an OS and platform firmware. With the UpdateCapsule boot service it can be used to update system firmware.
If you don't want or need this functionality you can use the
-Dplugin_uefi=false
option.
Firmware Format
The daemon will decompress the cabinet archive and extract a firmware blob in EFI capsule file format.
See https://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_6.pdf for details.
This plugin supports the following protocol ID:
- org.uefi.capsule
GUID Generation
These devices use the UEFI GUID as provided in the ESRT. Additionally, for the
system device the main-system-firmware
GUID is also added.
For compatibility with Windows 10, the plugin also adds GUIDs of the form
UEFI\RES_{$(esrt)}
.
UEFI Unlock Support
On some Dell systems it is possible to turn on and off UEFI capsule support from within the BIOS. This functionality can also be adjusted from within the OS by fwupd. This requires compiling with libsmbios support.
When fwupd has been compiled with this support you will be able to enable UEFI
support on the device by using the unlock
command.
Custom EFI System Partition
Since version 1.1.0 fwupd will autodetect the ESP when it is mounted on
/boot/efi
, /boot
, or /efi
. A custom EFI system partition location can be
used by modifying OverrideESPMountPoint in /etc/fwupd/uefi.conf
.
Setting an invalid directory will disable the fwupd plugin.