Translations:GRUB/2/en
From Gentoo Wiki
GRUB 2 (GRand Unified Bootloader version 2), sometimes stylized as GRUB2 and commonly referred to as GRUB, is a multiboot secondary bootloader capable of loading kernels from a variety of filesystems on most system architectures. GRUB supports PC BIOS, PC EFI, IEEE 1275 (Open Firmware), SPARC, and MIPS Lemote Yeeloong.