Grub UEFI Settings Entry Adder
The following repository adds a grub bootloader entry to boot into your UEFI/BIOS firmware settings. The underlying grub entry script (uefi-firmware) is a trimmed down version of this[1] script distributed by jsherz.com. The conditions have been removed as they no longer apply to recent linux versions. It shall be noted that I have NOT replaced the conditions, but rather removed them, hence I should remind you that the grub entry may not function on every device, depending on it’s linux setup, version and the hardware.
https://github.com/CTXz/grub-uefi-settings-entry
[1] https://jsherz.com/centos/grub/grub2/bios/uefi/boot/2015/11/21/centos-uefi-firmware-option.html
Firmware Security 