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coreboot, formerly known as LinuxBIOS, [5] is a software project aimed at replacing proprietary firmware (BIOS or UEFI) found in most computers with a lightweight firmware designed to perform only the minimum number of tasks necessary to load and run a modern 32-bit or 64-bit operating system.
AGESA was open sourced in early 2011, aiming to aid in the development of coreboot, a project attempting to replace PC's proprietary BIOS. [1] However, such releases never became the basis for the development of coreboot beyond AMD's family 15h, as they were subsequently halted.
The Libreboot project was started in December 2013 [6] as a distribution of coreboot, which excludes non-free binary blobs. Coreboot began as LinuxBIOS in 1999 at Los Alamos National Labs (LANL), and was renamed "coreboot" in 2008. [17] Libreboot has been endorsed by the Free Software Foundation, and was an official part of the GNU Project ...
LinuxBoot must run on top of hardware initialisation software in order to start. This can be the Pre-EFI Initialization (PEI) part of UEFI, coreboot, or U-Boot. [1] It can boot Linux through the kexec syscall, but is also able to boot Windows with a different method. [2]
Google uses a version of coreboot modified to launch Tiano. This feature is called PIANO (payload into Tiano) or tianocoreboot. PIANO code was merged into coreboot in 2013. [11] The code was updated to be compatible with EDK II in 2017. [12] EDK2 source code includes instructions for building as a payload for coreboot or Intel's "slim ...
SeaBIOS can run natively on x86 hardware, in which case it is usually loaded as a coreboot payload; it can run on 386 and newer processors, and requires a minimum of 1 MB of RAM. SeaBIOS also runs inside an emulator; it is the default BIOS for the QEMU and KVM virtualization environments, and can be used with the Bochs emulator.
Open Firmware implements the IEEE 1275-1994 standard. [1] Open Firmware was released by the company Firmworks. [2] The principal architect of Open Firmware, Mitch Bradley, [2] is chairman of the Open Firmware Working Group [3] and president and founder of Firmworks. [1]
Note: The column MBR (Master Boot Record) refers to whether or not the boot loader can be stored in the first sector of a mass storage device. The column VBR (Volume Boot Record) refers to the ability of the boot loader to be stored in the first sector of any partition on a mass storage device.