Efibootmgr is a Linux user-space application to modify the Intel
Extensible Firmware Interface (EFI) Boot Manager.
This application can create and destroy boot entries, change the
boot order, change the next running boot option, and more.

Details on the EFI Boot Manager are available from the EFI
Specification, v1.02 or above, available from: http://www.uefi.org

Note: efibootmgr requires either the efivarfs or the legacy efivars
kernel module to be loaded prior to use.
