The boot loader is the first piece of software started by the BIOS or UEFI. It is responsible for loading the kernel with the wanted kernel parameters, and initial RAM disk before initiating the boot process. You can use different kinds of bootloaders in Arch, such as GRUB and Syslinux. Some bootloaders only support BIOS or UEFI and some support both.
This page contains a short introduction about bootloaders available in Arch. For detailed information see the corresponding pages of each bootloader.
Both BIOS and UEFI boot loaders
UEFI-only boot loaders
Linux Kernel EFISTUB
The Linux kernel can be booted directly without a boot loader. The stock Archlinux kernel has the EFI stub loader built in. See EFISTUB.
Gummiboot is a UEFI Boot Manager which provides a menu for booting EFISTUB kernels. See Gummiboot.
rEFInd is a UEFI Boot Manager which provides a menu for booting EFISTUB kernels. It is an alternative to Gummiboot. See rEFInd.
ELILO is the UEFI version of the BIOS-only LILO. Its config file
elilo.conf is similar to LILO's config file. Upstream provided compiled binaries are available at http://sourceforge.net/projects/elilo/ and an AUR package at AUR.
BIOS-only boot loaders
NeoGRUB provides a means to boot Arch from the Windows boot loader without installing an additional boot loader. See NeoGRUB.
Booting Arch from NeoGRUB has not been tested yet from Windows 8 and/or UEFI systems.
On some UEFI motherboards like boards with an Intel Z77 chipset, adding entries with
bcfg from the EFI Shell will not work because they don't show up on the boot menu list after being added to NVRAM.
This issue is caused because the motherboards can only load Microsoft Windows. To solve this you have to place the
.efi file in the location that Windows uses.
bootx64.efi file from the Arch Linux installation medium (
FSO:) to the Microsoft directory your ESP partition on your hard drive (
FS1:). Do this by booting into EFI shell and typing:
FS1: cd EFI mkdir Microsoft cd Microsoft mkdir Boot cp FS0:\EFI\BOOT\bootx64.efi FS1:\EFI\Microsoft\Boot\bootmgfw.efi
After reboot, any entries added to NVRAM should show up in the boot menu.