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Manual Pages  — BOOT1.EFI

NAME

boot1.efi – UEFI chain loader

CONTENTS

DESCRIPTION

boot1.efi has been deprecated and will be removed from a future release. loader.efi(8) handles all its former use cases with more flexibility.

On UEFI systems, boot1.efi loads /boot/loader.efi from the default root file system and transfers execution there. Some systems may need to use gptboot.efi(8) when loader.efi(8) cannot be used directly on the ESP (EFI System Partition).

Initialization

Before looking for the boot device, boot1.efi does the following initialization

Boot Device Selection

boot1.efi uses the following sequence to determine the root file system for booting:

A partition is considered bootable if it can load /boot/loader.efi from it. Command line arguments to the next boot stage are read from the first existing file of /boot.config or /boot/config in that order.

Caveats


BOOT1.EFI (8) April 6, 2021

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