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-<!DOCTYPE html>
-<html>
-<head>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, initial-scale=1">
-
- <style type="text/css">
- @import url('../css/main.css');
- </style>
-
- <title>GRUB payload</title>
-</head>
-
-<body>
-
- <div class="section">
- <h1 id="pagetop">GRUB payload</h1>
- <p>
- This section relates to the GRUB payload used in libreboot.
- </p>
- <p>
- Or <a href="../index.html">Back to main index</a>.
- </p>
- <ul>
- <li><a href="#grub_background">Changing the background image in GRUB</a></li>
- <li><a href="#grub_font">Setting font in GRUB</a></li>
- <li><a href="#grub_keyboard">GRUB keyboard layouts</a>
- <ul>
- <li><a href="#grub_custom_keyboard">Custom keyboard layout in GRUB</a></li>
- <li><a href="#grub_ukdvorak_keyboard">UK Dvorak keyboard layout in GRUB</a></li>
- </ul>
- </li>
- </ul>
- </div>
-
- <div class="section">
-
- <h1 id="grub_background">Changing the background image in GRUB</h1>
-
- <p>
- Use cbfstool from libreboot_util, or libreboot_src/coreboot/util/cbfstool/ if you want to build from source.
- </p>
- <p>
- ./cbfstool yourrom.rom remove background.png -n background.png<br/>
- ./cbfstool yourrom.rom add -f background.png -n background.png -t raw
- </p>
- <p>
- When you've done this, re-flash your ROM and you should have a new background at boot time.
- </p>
-
- </div>
-
- <div class="section">
-
- <h1 id="grub_font">Setting font in GRUB (for reference)</h1>
-
- <p>You don't need to do this unless you would like to change the default font yourself.
- (this is just for reference. It has already been done for you)</p>
-
- <p>The old font used was Unifont, and this had some missing characters: for instance, the border showed ??? characters instead of lines.</p>
-
- <p>I tried DeJavu Sans Mono from this website:
- <a href="http://dejavu-fonts.org/wiki/Download">dejavu-fonts.org</a></p>
-
- <p>Specifically, the version that I chose was the latest at the time of writing (Saturday 21 June 2014):
- <a href="http://sourceforge.net/projects/dejavu/files/dejavu/2.34/dejavu-fonts-ttf-2.34.tar.bz2">this one</a></p>
-
- <p>This is a free font that is also contained in GNU/Linux distributions like Trisquel or Parabola.</p>
-
- <p><b>$ cd libreboot_src/grub</b><br/>
- compile grub (the build scripts info on how to do this)<br/>
- come back out into libreboot_src/resources/grub:<br/>
- <b>$ cd ../libreboot_src/resources/grub/font</b></p>
-
- <p>I took Dejavu Sans Mono from dejavu (included in this version of libreboot) and did:<br/>
- <b>$ ../../../grub/grub-mkfont -o dejavusansmono.pf2 dejavu-fonts-ttf-2.34/ttf/DejaVuSansMono.ttf</b></p>
-
- <p>I then added the instructions to 'gen.sh' script in grub-assemble to include resources/grub/dejavusansmono.pf2
- in all of the ROM images, at the root of the GRUB memdisk.<br/>
- I then added that instructions to the grub.cfg files (to load the font):<br/>
- <b>loadfont (memdisk)/dejavusansmono.pf2</b></p>
-
- <p><a href="#pagetop">Back to top of page</a></p>
-
- </div>
-
- <div class="section">
-
- <h1 id="grub_keyboard">GRUB keyboard layouts (for reference)</h1>
-
- <div class="subsection">
-
- <h2 id="grub_custom_keyboard">Custom keyboard layout in GRUB (for reference)</h2>
-
- <p>
- Keymaps are stored in resources/utilities/grub-assemble/keymap/.
- </p>
-
- <p>
- Example (French Azerty):<br/>
- <b>$ ckbcomp fr &gt; frazerty</b><br/><br/>
- Go in grub directory:<br/>
- <b>cat frazerty | ./grub/grub-mklayout -o frazerty.gkb</b>
- </p>
-
- <p>
- You must make sure that the files are named keymap and keymap.gkb (where 'keymap' can be whatever you want).
- </p>
-
- <p>
- Then from the above example, you would put <b>frazerty</b> in <b>resources/utilities/grub-assemble/keymap/original/</b> and
- the <b>frazerty.gkb</b> file goes under <b>resources/utilities/grub-assemble/keymap/</b>
- </p>
-
- <p>
- The build scripts will automatically see this, and automatically build
- ROM images with your custom layout (given the name) and include them under bin. Example: <b>libreboot_frazerty.rom</b>.
- </p>
-
- <p><a href="#pagetop">Back to top of page</a></p>
-
- </div>
-
- <div class="subsection">
-
- <h2 id="grub_ukdvorak_keyboard">UK Dvorak keyboard layout in GRUB (for reference)</h2>
-
- <p>
- ukdvorak had to be created manually, based on usdvorak. diff them (under resources/utilities/grub-assemble/keymap/original)
- to see how ukdvorak file was created
- </p>
-
- <p><b>$ cat ukdvorak | ./grub/grub-mklayout -o ukdvorak.gkb</b></p>
-
- <p><a href="#pagetop">Back to top of page</a></p>
-
- </div>
-
- </div>
-
- <div class="section">
-
- <p>
- Copyright &copy; 2014 Francis Rowe &lt;info@gluglug.org.uk&gt;<br/>
- Permission is granted to copy, distribute and/or modify this document
- under the terms of the GNU Free Documentation License, Version 1.3
- or any later version published by the Free Software Foundation;
- with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
- A copy of the license can be found at <a href="../gfdl-1.3.txt">../gfdl-1.3.txt</a>
- </p>
-
- <p>
- Updated versions of the license (when available) can be found at
- <a href="https://www.gnu.org/licenses/licenses.html">https://www.gnu.org/licenses/licenses.html</a>
- </p>
-
- <p>
- UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
- EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
- AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
- ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
- IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
- WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
- PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
- ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
- KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
- ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.
- </p>
- <p>
- TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
- TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
- NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
- INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
- COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
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- ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
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- IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
- </p>
- <p>
- The disclaimer of warranties and limitation of liability provided
- above shall be interpreted in a manner that, to the extent
- possible, most closely approximates an absolute disclaimer and
- waiver of all liability.
- </p>
-
- </div>
-
-</body>
-</html>