CompTIA Linux+ Exam: UEFI-Based System and Invoking GRUB2

UEFI-Based System and GRUB2 Invocation

Question

On a UEFI-based system, which of the following invokes GRUB2 from the EFI command prompt?

Answers

Explanations

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A. B. C. D.

C.

https://docs.pagure.org/docs-fedora/the-grub2-bootloader.html

On a UEFI-based system, the EFI shell can be used to directly execute EFI binary files such as GRUB2. The EFI shell is an interactive command line interface that is available to the user when the system is in UEFI mode. To invoke GRUB2 from the EFI command prompt, the user must specify the location of the GRUB2 binary file.

The correct answer is option C. /boot/EFI/grub2.efi.

This is because GRUB2 is typically installed in the /boot/EFI directory on Linux systems. The EFI shell recognizes the forward slash (/) as the path separator, so the correct path to the GRUB2 binary file is /boot/EFI/grub2.efi.

Option A (boot//EFI/grub2.efi) is incorrect because it includes an extra forward slash after "boot" which is not necessary.

Option B (EFI/grub2.efi) is incorrect because it assumes that GRUB2 is installed directly in the EFI system partition, which is not typical.

Option D (/grub2.efi) is incorrect because it assumes that GRUB2 is installed in the root directory of the EFI system partition, which is also not typical.