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Translations:Efibootmgr/19/en
From Gentoo Wiki (test)
--create (-c)to create a new entry;--part (-p)followed by the partition number on which the EFI System Partition is hosted;--disk (-d)followed by the disk on which the EFI System Partition is hosted;--label (-L)followed by the label to use as the boot entry;--loader (-l)followed by the path of the EFI image to boot