efibootmgr

efibootmgr is a free, open-source Linux command-line utility for modifying Intel EFI Boot Manager settings. It can create or delete boot entries, mark entries active or inactive, and change the persistent boot order. You can also set or remove which option runs on the next boot and adjust the boot manager timeout. Additional options append binary arguments from a file or standard input. The utility can create a network-boot entry for a named interface, including a PXE entry. It works with EFI boot variables and devices, and requires either the efivarfs filesystem or the legacy efivars kernel module to be loaded first. The repository identifies the GPL-2.0 license. Its README describes use by operating-system installers and system administrators that need to create boot options or change boot order. The documented interface is command-line based, with no external integrations listed. efibootmgr supports UEFI and multiboot, plus boot-entry editing and boot-menu customization, but it does not support BIOS systems.

efibootmgr provides focused command-line control over UEFI boot variables at no cost. It is appropriate when direct boot-entry management is needed on Linux systems.

efibootmgr is for Linux operating-system installers and administrators managing UEFI boot entries or boot order. It suits users comfortable with command-line controls.