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CONFIG_EFI_VARS: EFI Variable Support via sysfs

General informations

The Linux kernel configuration item CONFIG_EFI_VARS has multiple definitions:

/proc/efi/vars support found in arch/ia64/Kconfig

The configuration item CONFIG_EFI_VARS:

Help text

If you say Y here, you are able to get EFI (Extensible Firmware Interface) variable information in /proc/efi/vars. You may read, write, create, and destroy EFI variables through this interface.

To use this option, you have to check that the "/proc file system support" (PROC_FS) is enabled, too.

EFI Variable Support via sysfs found in drivers/firmware/Kconfig

The configuration item CONFIG_EFI_VARS:

Help text

If you say Y here, you are able to get EFI (Extensible Firmware Interface) variable information via sysfs. You may read, write, create, and destroy EFI variables through this interface.

Note that using this driver in concert with efibootmgr requires at least test release version 0.5.0-test3 or later, which is available from Matt Domsch's website located at: http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz

Subsequent efibootmgr releases may be found at: http://linux.dell.com/efibootmgr

EFI Variable Support via sysfs found in drivers/firmware/efi/Kconfig

The configuration item CONFIG_EFI_VARS:

Help text

If you say Y here, you are able to get EFI (Extensible Firmware Interface) variable information via sysfs. You may read, write, create, and destroy EFI variables through this interface.

Note that using this driver in concert with efibootmgr requires at least test release version 0.5.0-test3 or later, which is available from: http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz

Subsequent efibootmgr releases may be found at: http://github.com/vathpela/efibootmgr

Hardware

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