e1ea5dd0fd
changes upstream, relative to the previous revision: * e5f2e4c6 pciinit: don't misalign large BARs * 731c88d5 stdvgaio: Only read/write one color palette entry at a time * c5a361c0 stdvga: Add stdvga_set_vertical_size() helper function * 22c91412 stdvga: Rename stdvga_get_vde() to stdvga_get_vertical_size() * 549463db stdvga: Rename stdvga_set_scan_lines() to stdvga_set_character_height() * c67914ac stdvga: Rename stdvga_set_text_block_specifier() to stdvga_set_font_location() * aa94925d stdvga: Rework stdvga palette index paging interface functions * 8de51a5a stdvga: Rename stdvga_toggle_intensity() to stdvga_set_palette_blinking() * 96c7781f stdvga: Add comments to interface functions in stdvga.c * 2996819f stdvga: Rename CGA palette functions * 91368088 stdvgamodes: Improve naming of dac palette tables * 70f43981 stdvgamodes: No need to store pelmask in vga_modes[] * 1588fd14 vgasrc: Rename vgahw_get_linesize() to vgahw_minimum_linelength() * d73e18bb vgasrc: Use curmode_g instead of vmode_g when mode is the current video mode * 192e23b7 vbe: implement function 09h (get/set palette data) * 3722c21d vgasrc: round up save/restore size * 5d87ff25 vbe: Add VBE 2.0+ OemData field to struct vbe_info * 163fd9f0 fix smbios blob length overflow * 82faf1d5 Add LBA 64bit support for reads beyond 2TB. * 3f082f38 Add AHCI Power ON + ICC_ACTIVE into port setup code * 3ae88886 esp-scsi: terminate DMA transfer when ESP data transfer completes * a6ed6b70 limit address space used for pci devices. Signed-off-by: Leah Rowe <info@minifree.org> |
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README.md
Libreboot
Find libreboot documentation at https://libreboot.org/
The libreboot project provides
libre boot
firmware that initializes the hardware (e.g. memory controller, CPU,
peripherals) on specific Intel/AMD x86 and ARM targets, which
then starts a bootloader for your operating system. Linux/BSD are
well-supported. It replaces proprietary BIOS/UEFI firmware. Help is available
via #libreboot IRC
on Libera IRC.
Why use Libreboot?
Why should you use libreboot?
Libreboot gives you freedoms that you otherwise can't get with most other boot firmware. It's extremely powerful and configurable for many use cases.
You have rights. The right to privacy, freedom of thought, freedom of speech and the right to read. In this context, Libreboot gives you these rights. Your freedom matters. Right to repair matters. Many people use proprietary (non-libre) boot firmware, even if they use a libre OS. Proprietary firmware often contains backdoors (more info on the FAQ), and it and can be buggy. The libreboot project was founded in December 2013, with the express purpose of making coreboot firmware accessible for non-technical users.
The libreboot project uses coreboot for hardware
initialisation.
Coreboot is notoriously difficult to install for most non-technical users; it
handles only basic initialization and jumps to a separate
payload program (e.g.
GRUB,
Tianocore), which must also be configured.
The libreboot software solves this problem; it is a coreboot distribution with
an automated build system (named lbmk) that builds complete ROM images, for
more robust installation. Documentation is provided.
How does Libreboot differ from coreboot?
In the same way that Debian is a GNU+Linux distribution, libreboot is
a coreboot distribution. If you want to build a ROM image from scratch, you
otherwise have to perform expert-level configuration of coreboot, GRUB and
whatever other software you need, to prepare the ROM image. With libreboot,
you can literally download from Git or a source archive, and run make, and it
will build entire ROM images. An automated build system, named lbmk
(Libreboot MaKe), builds these ROM images automatically, without any user input
or intervention required. Configuration has already been performed in advance.
If you were to build regular coreboot, without using libreboot's automated build system, it would require a lot more intervention and decent technical knowledge to produce a working configuration.
Regular binary releases of libreboot provide these
ROM images pre-compiled, and you can simply install them, with no special
knowledge or skill except the ability to follow installation instructions
and run commands BSD/Linux.
Project goals
- Support as much hardware as possible! Libreboot aims to eventually have maintainers for every board supported by coreboot, at every point in time.
- Make coreboot easy to use. Coreboot is notoriously difficult to install, due to an overall lack of user-focused documentation and support. Most people will simply give up before attempting to install coreboot. Libreboot's automated build system and user-friendly installation instructions solves this problem.
Libreboot attempts to bridge this divide by providing a build system automating much of the coreboot image creation and customization. Secondly, the project produces documentation aimed at non-technical users. Thirdly, the project attempts to provide excellent user support via IRC.
Libreboot already comes with a payload (GRUB), flashprog and other needed parts. Everything is fully integrated, in a way where most of the complicated steps that are otherwise required, are instead done for the user in advance.
You can download ROM images for your libreboot system and install them without having to build anything from source. If, however, you are interested in building your own image, the build system makes it relatively easy to do so.
Not a coreboot fork!
Libreboot is not a fork of coreboot. Every so often, the project re-bases on the latest version of coreboot, with the number of custom patches in use minimized. Tested, stable (static) releases are then provided in Libreboot, based on specific coreboot revisions.
How to help
You can check bugs listed on the bug tracker.
If you spot a bug and have a fix, the website has instructions for how to send patches, and you can also report it. Also, this entire website is written in Markdown and hosted in a separate repository where you can send patches.
Any and all development discussion and user support are all done on the IRC channel. More information is on https://libreboot.org/contact.html.
LICENSE FOR THIS README
It's just a README file. This README file is released under the terms of the Creative Commons Zero license, version 1.0 of the license, which you can read here:
https://creativecommons.org/publicdomain/zero/1.0/legalcode.txt