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'''LinuxBIOS''' is a Free Software project aimed at replacing the proprietary BIOS you can find in most of today's computers.
'''coreboot''' is an Open Source project aimed at replacing the proprietary [http://wikipedia.org/wiki/BIOS BIOS] (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a [[Payloads|payload]].


It performs just a little bit of hardware initialization and then executes one of many possible [[payloads]], e.g. a Linux kernel, [[FILO]], [[OpenBIOS]], [[Etherboot]], [[ADLO]] for booting Windows, [[memtest86]] and many more.
With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly from firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like [[SeaBIOS | PC BIOS services]] or [[TianoCore | UEFI]]. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.
 
coreboot currently supports over '''[[Supported Motherboards|230]]''' different mainboards. Check the [[Support]] page to see if your system is supported.
 
<small>
coreboot was formerly known as [http://www.coreboot.org/pipermail/coreboot/2008-January/029135.html LinuxBIOS].
</small>
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coreboot uses [[git]] for source control and [http://review.coreboot.org gerrit] as the patch review tool.  Please read the [https://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=Documentation/gerrit_guidelines.md;hb=HEAD gerrit etiquette] document before submitting or reviewing patches.
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<!--a compressed Linux kernel that can be booted from a cold start.  -->
<!--The project was started as part of clustering research work in the Cluster Reseach Lab at the Advanced Computing Laboratory at Los Alamos National Laboratory. The primary motivation behind the project was the desire to have the operating system gain control of a cluster node from power on. Other beneficial consequences of using LinuxBIOS include needing only two working motors to boot (cpu fan and power supply), fast boot times (current fastest is 3 seconds), and freedom from proprietary (buggy) BIOS code, to name a few. These secondary benefits are numerous and have helped gain support from many vendors in both the high performance computing as well as embedded computing markets.


Note that, on newer systems, there need be no moving parts at all. At LANL, we are building a new 'no moving parts' 16-node cluster to demonstrate this capability. The cluster will fit in a toolbox, run from a battery,  boot in 10 seconds, and be controlled from your laptop (which, sadly, will still have a few moving parts).
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=== Benefits ===
 
<small>There are many reasons for using LinuxBIOS.</small>
{{Box|
<hr />
BORDER = #8898bf|
* 100% Free Software BIOS (GPL)
BACKGROUND = yellow|
* No royalties or license fees!
WIDTH = 100%|
* Fast boot times (3 seconds from power-on to Linux console)
ICON = <small>[[Benefits|More...]]</small>|
* Avoids the need for a slow, buggy, proprietary BIOS
HEADING = <span style="font-variant:small-caps; font-size:120%">[[Benefits]]</span>|
* Runs in 32-Bit protected mode almost from the start
CONTENT =
* Written in C, contains virtually no assembly code
<small>
* Supports a wide variety of [[Supported Chipsets & Devices|hardware]] and [[payloads]]
* 100% Free Software (GPL), no royalties, no license fees!
* Further features: netboot, serial console, remote flashing, ...
* Fast boot times (500 milliseconds to verified Linux kernel)
<!-- * Avoids the need for a slow/buggy/proprietary BIOS -->
<!-- * Runs in 32-Bit protected mode almost from the start -->
<!-- * Written in C, contains virtually no assembly code -->
* Supports many [[Supported Motherboards|mainboards]], [[Supported Chipsets and Devices|chipsets]], and [[payloads]]
<!-- * Further features: netboot, serial console, remote flashing, ... -->
</small>
}}
 
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ICON = <small>[[Use Cases|More...]]</small>|
HEADING = <span style="font-variant:small-caps; font-size:120%">[[Use Cases]]</span>|
CONTENT =
<small>
* Desktop PCs, servers, [[Laptop|laptops]]
* [[Clusters]]
<!-- * Set-Top-Boxes, thin clients -->
* Embedded solutions
<!-- * [http://en.wikipedia.org/wiki/Small_form_factor Small form factor computers], [http://en.wikipedia.org/wiki/Home_theater_PC Home-theater PCs] -->
<!-- * No-moving-parts solutions (ROM chip as "disk") -->
<!-- * Non-standard scenarios (e.g. FPGA in Opteron socket) -->
</small>
}}
 
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{{Box|
BORDER = #8898bf|
BACKGROUND = lime|
WIDTH = 100%|
ICON = <small>[[Payloads|More...]]</small>|
HEADING = <span style="font-variant:small-caps; font-size:120%">[[Payloads]]</span>|
CONTENT =
<small>
* [[SeaBIOS]] / [[FILO]] / [[GRUB2]] / [[Payloads|...]] <!-- / [[OpenFirmware]] / [[OpenBIOS]] -->
* [[Linux]] / [[Windows]] / [[FreeBSD]] / [[NetBSD]] / [[Payloads|...]] <!-- / [http://openbsd.org/ OpenBSD]-->
* [[Etherboot]] / [[GPXE]] / [[iPXE]] / [[Payloads|...]]
<!--* [[Memtest86]]
* [[Bayou]] / [[Coreinfo]] / [[Tint]] / [[Libpayload]]-->
</small>
}}
 
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{|
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=== Use Cases & Deployments ===
[[Image:chip_cb.png]]
<small>LinuxBIOS can be (and is) deployed in a wide range of scenarios.</small>
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<hr />
'''<span style="font-variant:small-caps; font-size:150%">About</span>'''<br /><small>Find out more about coreboot.</small><small><hr />[[Press]] | [[Logo]] | [[History]] | [[Screenshots|Screenshots/Videos]] | [[Contributors]] | [[Sponsors]] | [[Products]] | [[Vendors]]</small>
* [[Clusters]], high-performance computing
* Embedded solutions, appliances, terminals
* Standard desktop computers
* [http://en.wikipedia.org/wiki/Small_form_factor Small form factor computers], [http://en.wikipedia.org/wiki/Home_theater_PC Home-theater PCs] (HTPC)
* Servers (serial console, remote flashing, fast boot times)
* No-moving-parts solutions (except for CPU fan & power supply)
* [http://wiki.laptop.org/go/LinuxBIOS One Laptop per Child] (OLPC)
|}
|}


== Quick Links ==
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{|
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[[Image:chip_devel.png]]
|style="vertical-align:top"|
'''<span style="font-variant:small-caps; font-size:150%">Developers</span>'''<br /><small>Get involved! Help us make coreboot better.</small><small><hr />[[Development Guidelines]] | [[Developer Manual]] | [http://qa.coreboot.org/docs/doxygen.php Doxygen] | [http://review.coreboot.org/gitweb?p=coreboot.git;a=tree Browse Source] | [[GSoC]] | [[Where to start]] | [[Distributed and Automated Testsystem|Testsystem]]</small>
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<table valign="top"><tr valign="top">
[[Image:chip_status.png]]
  <td>[[Image:chip_lb.png]]</td>
  <td>'''About'''<br /><small>Find out more about LinuxBIOS.</small><hr />[[News]] | [[Press]] | [[History]] | [[Documentation]] | [[Contributors]]<br /></td>
  </tr></table>
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<table valign="top"><tr valign="top">
'''<span style="font-variant:small-caps; font-size:150%">Status</span>'''<br /><small>Find out whether your hardware is already supported.</small><small><hr />[[Supported Motherboards|Supported Boards]] | [[Supported Chipsets and Devices|Supported Chipsets]] | [[:Category:Tutorials|Board Status Pages]] | [[Blob Matrix|Blob Matrix]] | [http://qa.coreboot.org Build Status]</small>
  <td>[[Image:chip_devel.png]]</td>
|}
  <td>'''Developers'''<br /><small>Get involved! Help us make LinuxBIOS better!</small><hr />[[Development Guidelines]] | [https://openbios.org/roundup/linuxbios/ Issue Tracker]<br />[http://www.linuxbios.org/data/Options.html Configuration Options] | [[JTAG/BSDL Guide|JTAG]] | [[EHCI Debug Port]]</td>
 
  </tr></table>
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{|
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[[Image:chip_tools.png]]
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'''<span style="font-variant:small-caps; font-size:150%">Related Tools</span>'''<br /><small>Tools and libraries related to coreboot.</small><small><hr />[http://www.flashrom.org flashrom] | [[Superiotool]] | [[Nvramtool]] | [[Buildrom]] | [[Mkelfimage]] | [[Inteltool]] | [[Msrtool]] | [[Ectool]] | [[Developer_Manual/Tools|Hardware tools]] | [[Abuild]] | [http://serialice.com SerialICE]</small>
|}
 
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[[Image:chip_101.png]]
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<table valign="top"><tr valign="top">
'''<span style="font-variant:small-caps; font-size:150%">Getting Started</span>'''<br /><small>Download coreboot and get started.</small><small><hr />[[Build HOWTO]] | [[Download coreboot|Downloads]] | [[Documentation]] | [[QEMU]] | [[AMD SimNow]] | [[Build from Windows]]</small>
  <td>[[Image:chip_status.png]]</td>
|}
  <td>'''Status'''<br /><small>Find out whether your hardware is already supported.</small><hr />[[Supported Motherboards]] | [[Supported Chipsets & Devices]]</td>
 
  </tr></table>
|style="vertical-align:top"|
|style="vertical-align:top"|
<table valign="top"><tr valign="top">
 
  <td>[[Image:chip_vendors.png]]</td>
{|
  <td>'''Vendors & Products'''<br /><small>Do you want to deploy LinuxBIOS? Buy LinuxBIOS solutions?</small><hr />[[Products]] | [[Clusters]] | [[Laptop]]</td>
  </tr></table>
|-
|style="vertical-align:top"|
|style="vertical-align:top"|
<table valign="top"><tr valign="top">
[[Image:chip_support.png]]
  <td>[[Image:chip_101.png]]</td>
  <td>'''Getting Started'''<br /><small>Download LinuxBIOS and get started!</small><hr />[[Download LinuxBIOS|Downloads]] | [[Payloads]] | [[Documentation#How-To.27s|Build Tutorials]]<br />[[Confirmed working svn revisions|Confirmed Working SVN Revisions]] | [[Misc]]</td>
  </tr></table>
|style="vertical-align:top"|
|style="vertical-align:top"|
<table valign="top"><tr valign="top">
'''<span style="font-variant:small-caps; font-size:150%">Support</span>'''<br /><small>Learn how to contact us and find help and support.</small><small><hr />[[FAQ]] | [[Mailinglist]] | [[IRC]] | [[Glossary]] | [[coreboot Options|coreboot Options]]</small>
  <td>[[Image:chip_support.png]]</td>
  <td>'''Support'''<br /><small>Learn how to contact us and find help and support.</small><hr />[[Mailinglist]] | [[FAQ]] | [[Glossary]]</td>
  </tr></table>
|}
|}


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[[Image:Linuxbios growth.jpg|thumb|More than a million devices already run on LinuxBIOS!]]
[[File:Coreboot menuconfig.png|center|thumb|[[Build HOWTO|make menuconfig]] in coreboot]]
 
<br clear=all />
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== News ==
'''<span style="font-variant:small-caps; font-size:120%">[http://blogs.coreboot.org News (blog)]</span>'''<hr />
<small>
<small>
* '''2006/10/05:'''<br />[[News#2006.2F10.2F05_____AMD_Rev_F_supported_in_LinuxBIOS|AMD Rev F (AMD64 on Socket F / Socket AM2) support]]
<rss max=5>http://blogs.coreboot.org/feed/</rss>
* '''2006/10/01:'''<br />[[LinuxBIOS Symposium 2006]] in Hamburg, Germany
</small>
* '''2005/06/02:'''<br />[[News#2005.2F06.2F02_____AMD_dual_core_supported_in_LinuxBIOS|AMD dual core support]]
 
* '''2005/05/11:'''<br />[[News#2005.2F05.2F11_____Nvidia_CK804_.28NForce4.29_supported_in_LinuxBIOS|Nvidia CK804 (NForce4) support]]
 
* '''2005/04/22:'''<br />[[News#2005.2F04.2F22_____How_Many_People_Are_Using_LinuxBIOS.3F_Would_you_believe_1.2C000.2C000.3F|How Many People Are Using LinuxBIOS? Would you believe 1,000,000?]]
'''<span style="font-variant:small-caps; font-size:120%">[[Current events|Events]]</span>'''<hr />
* '''2005/03/01:'''<br />[[News#2005.2F03.2F01_____LinuxBIOS_Wiki_up_and_running|LinuxBIOS Wiki up and running]]
<!-- List of upcoming events (remove events after they have taken place). -->
<small>
 
* '''2016/01''' coreboot booth at [https://fosdem.org/2016/ Fosdem 2016] in Brussels, Belgium
 
* '''2016/??''' Hackathon Paris
 
<!-- * '''2016/06''' coreboot convention in Mountain View, USA -->
 
<!-- * '''2016/09''' coreboot convention in Berlin, Germany -->
 
<!-- * Currently none -->
<!--* '''2015/mon/day:''' coreboot event at [[Link]] in somecity -->
</small>
</small>
<br clear=all />
{{#widget:Ohloh Project|id=coreboot|type=partner_badge}}
{{#widget:Ohloh Project|id=coreboot|type=cocomo}}


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Revision as of 00:35, 27 November 2015

coreboot is an Open Source project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.

With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly from firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.

coreboot currently supports over 230 different mainboards. Check the Support page to see if your system is supported.

coreboot was formerly known as LinuxBIOS.

coreboot uses git for source control and gerrit as the patch review tool. Please read the gerrit etiquette document before submitting or reviewing patches.

  • 100% Free Software (GPL), no royalties, no license fees!
  • Fast boot times (500 milliseconds to verified Linux kernel)
  • Supports many mainboards, chipsets, and payloads

About
Find out more about coreboot.
Press | Logo | History | Screenshots/Videos | Contributors | Sponsors | Products | Vendors

Developers
Get involved! Help us make coreboot better.
Development Guidelines | Developer Manual | Doxygen | Browse Source | GSoC | Where to start | Testsystem

Status
Find out whether your hardware is already supported.
Supported Boards | Supported Chipsets | Board Status Pages | Blob Matrix | Build Status

Related Tools
Tools and libraries related to coreboot.
flashrom | Superiotool | Nvramtool | Buildrom | Mkelfimage | Inteltool | Msrtool | Ectool | Hardware tools | Abuild | SerialICE

Getting Started
Download coreboot and get started.
Build HOWTO | Downloads | Documentation | QEMU | AMD SimNow | Build from Windows

Support
Learn how to contact us and find help and support.
FAQ | Mailinglist | IRC | Glossary | coreboot Options
make menuconfig in coreboot


News (blog)

<rss max=5>http://blogs.coreboot.org/feed/</rss>


Events

  • 2016/01 coreboot booth at Fosdem 2016 in Brussels, Belgium
  • 2016/?? Hackathon Paris




{{#widget:Ohloh Project|id=coreboot|type=partner_badge}} {{#widget:Ohloh Project|id=coreboot|type=cocomo}}