bootloaderidGRUB
bootloaderidGRUB is an internal identifier used by certain boot management tools to reference a GRUB boot entry. It serves as a stable mapping token that links a firmware boot option to a specific configuration within GRUB’s menu system. The term is not a formal part of GRUB itself, but appears in tooling and documentation that implement a mapping layer between UEFI/legacy boot entries and GRUB's configuration files.
In practice, bootloaderidGRUB may be stored in a boot manager database, in EFI NVRAM, or in a
Management considerations include keeping the mapping in sync with the GRUB configuration. If the mapping becomes
See also: GRUB, bootloader, EFI/UEFI, systemd-boot, efibootmgr.