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efibootmgr:tldr:12437
This command is meant to be run on a Linux system with Secure Boot enabled. Let's break it down:
-
sudo
: This command is used to execute the subsequent command with superuser privileges, typically requiring administrator authentication. -
efibootmgr
: This is a Linux utility for managing EFI boot entries. EFI boot entries determine the boot options available on a system. -
-c
: This option tellsefibootmgr
to create a new EFI boot entry. -
-d ${-dev-sda1}
: This option specifies the disk on which the EFI system partition (ESP) is located.${-dev-sda1}
is a placeholder for the actual device identifier, in this case,/dev/sda1
. The ESP is a partition on the disk that stores EFI boot loaders and related files. -
-l ${\EFI\tools\Shell-efi}
: This option specifies the path to the EFI boot loader file that will be used for booting.${\EFI\tools\Shell-efi}
is a placeholder for the actual file path, likely referring to a UEFI Shell boot loader located atEFI\tools\Shell-efi
on the ESP. -
-L "${UEFI Shell}"
: This option sets the boot entry's descriptive label."${UEFI Shell}"
is a placeholder for the actual label, which could be something like "UEFI Shell".
By running this command, a new EFI boot entry will be created using the specified disk, EFI boot loader, and label. This can be useful for manually adding boot options or troubleshooting boot-related issues.