What: /sys/firmware/efi/esrt/ Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: Provides userland access to read the EFI System Resource Table (ESRT), a catalog of firmware for which can be updated with the UEFI UpdateCapsule mechanism described in section 7.5 of the UEFI Standard. Users: fwupdate - https://github.com/rhinstaller/fwupdate What: /sys/firmware/efi/esrt/fw_resource_count Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The number of entries in the ESRT What: /sys/firmware/efi/esrt/fw_resource_count_max Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The maximum number of entries that /could/ be registered in the allocation the table is currently in. This is really only useful to the system firmware itself. What: /sys/firmware/efi/esrt/fw_resource_version Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The version of the ESRT structure provided by the firmware. What: /sys/firmware/efi/esrt/entries/entry<N>/ Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: Each ESRT entry is identified by a GUID, and each gets a subdirectory under entries/ . example: /sys/firmware/efi/esrt/entries/entry0/ What: /sys/firmware/efi/esrt/entries/entry<N>/fw_type Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: What kind of firmware entry this is: == =============== 0 Unknown 1 System Firmware 2 Device Firmware 3 UEFI Driver == =============== What: /sys/firmware/efi/esrt/entries/entry<N>/fw_class Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: This is the entry's guid, and will match the directory name. What: /sys/firmware/efi/esrt/entries/entry<N>/fw_version Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The version of the firmware currently installed. This is a 32-bit unsigned integer. What: /sys/firmware/efi/esrt/entries/entry<N>/lowest_supported_fw_version Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The lowest version of the firmware that can be installed. What: /sys/firmware/efi/esrt/entries/entry<N>/capsule_flags Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: Flags that must be passed to UpdateCapsule() What: /sys/firmware/efi/esrt/entries/entry<N>/last_attempt_version Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The last firmware version for which an update was attempted. What: /sys/firmware/efi/esrt/entries/entry<N>/last_attempt_status Date: February 2015 Contact: Peter Jones <pjones@redhat.com> Description: The result of the last firmware update attempt for the firmware resource entry. == ====================== 0 Success 1 Insufficient resources 2 Incorrect version 3 Invalid format 4 Authentication error 5 AC power event 6 Battery power event == ======================