1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
|
<!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>Building libreboot from source</title>
</head>
<body>
<div class="section">
<h1 id="pagetop">Building libreboot from source</h1>
<p>
This section relates to building libreboot from source, and
working with the git repository.
</p>
<p>
Or <a href="../index.html">Back to main index</a>.
</p>
<ul>
<li><a href="#build_dependencies">Install build dependencies</a></li>
<li><a href="#build_meta">Get the full source code from metadata (git clone)</a></li>
<li><a href="#build_bucts">How to build "bucts" (for LenovoBIOS X60/X60S/X60T/T60)</a></li>
<li><a href="#build_flashrom">How to build "flashrom"</a></li>
<li>
<a href="#config">Configuring libreboot</a>
<ul>
<li><a href="#config_dmidecode">dmidecode</a></li>
<li><a href="#config_x60">ThinkPad X60, X60S and X60 Tablet</a></li>
<li><a href="#config_t60">ThinkPad T60</a></li>
<li><a href="#config_x200">ThinkPad X200</a></li>
<li><a href="#config_r400">ThinkPad R400</a></li>
<li><a href="#config_t400">ThinkPad T400</a></li>
<li><a href="#config_t500">ThinkPad T500</a></li>
<li><a href="#config_macbook21">MacBook2,1</a></li>
<li><a href="#config_qemu_i440fx_piix4">QEMU (x86 i440fx/piix4)</a></li>
<li><a href="#config_qemu_q35_ich9">QEMU (x86 q35/ich9)</a></li>
</ul>
</li>
<li><a href="#build">How to build the ROM images</a></li>
</ul>
</div>
<div class="section">
<h1 id="build_dependencies">Install build dependencies</h1>
<p>
Before doing anything, you need the dependencies first. This is true if
you want to build libreboot from source, with either libreboot_src.tar.xz or git.
<b>If you are using libreboot_util.tar.xz (binary archive) then you can ignore this, because
ROM images and statically compiled executables for the utilities are included.</b>
</p>
<div class="important">
<p>
For Trisquel 7, you can run the following command:<br/>
$ <b>sudo ./build dependencies trisquel7</b>
</p>
<p>
For Parabola, you can run the following command:<br/>
$ <b>sudo ./build dependencies parabola</b><br/>
or:<br/>
# <b>./build dependencies parabola</b>
</p>
</div>
<p>
For other GNU/Linux distributions, you can adapt the existing scripts.
</p>
<p><a href="#pagetop">Back to top of page</a></p>
</div>
<div class="section">
<h1 id="build_meta">Get the full source code from metadata (git clone)</h1>
<p>
If you downloaded libreboot from git, then there are some steps to download and patch
the source code for all relevant dependencies. The archive in the git repository used to be
available as a tarball called 'libreboot_meta.tar.gz'. It contains 'metadata' (scripts)
which define how the source was created (where it came from).
</p>
<p>
You can use the scripts included to download everything.
</p>
<p>
First, <a href="#build_dependencies">install the build dependencies</a>.
</p>
<p>
Since libreboot makes extensive use of git, you need to configure git properly. If you have not yet configured
git, then the minimum requirement is:<br/>
$ <b>git config --global user.name "Your Name"</b><br/>
$ <b>git config --global user.email your@emailaddress.com</b><br/>
This is what will also appear in git logs if you ever commit your own changes to a given repository. For
more information, see <a href="http://git-scm.com/doc">http://git-scm.com/doc</a>.
</p>
<p>
Another nice config for you (optional, but recommended):<br/>
$ <b>git config --global core.editor nano</b><br/>
$ <b>git config --global color.status auto</b><br/>
$ <b>git config --global color.branch auto</b><br/>
$ <b>git config --global color.interactive auto</b><br/>
$ <b>git config --global color.diff auto</b>
</p>
<p>
After that, run the script:<br/>
$ <b>./download all</b>
</p>
<p>
What this did was download everything (grub, coreboot, memtest86+, bucts, flashrom)
at the versions last tested for this release, and patch them. Read the script
in a text editor to learn more.
</p>
<p>
To build the ROM images, see <a href="#build">#build</a>.
</p>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="build_bucts">How to build "bucts" (for LenovoBIOS X60/X60S/X60T/T60)</h1>
<p>
<b>This is for Lenovo BIOS users on the ThinkPad X60/X60S, X60 Tablet and T60. If you have coreboot or libreboot running already, ignore this.</b>
</p>
<p>
BUC.TS isn't really specific to these laptops, but is a bit inside the a register in the chipset on some Intel systems.
</p>
<p>
Bucts is needed when flashing in software the X60/X60S/X60T/T60 ROM while Lenovo BIOS is running;
external flashing will be safe regardless.
Each ROM contains identical data inside the two final 64K region in the file*.
This corresponds to the final two 64K regions in the flash chip. Lenovo BIOS will prevent you from writing the
final one, so running "<b>bucts 1</b>" will set the machine to boot from the other block instead (which
is writeable along with everything beneath it when using a patched flashrom. see <a href="#build_flashrom">#build_flashrom</a>).
After shutting down and booting up after the first flash of libreboot,
the final 64K block is writeable so you flash the ROM again with an unpatched flashrom and run "<b>bucts 0</b>" to
make the machine boot from the normal (highest) block again.
</p>
<p>
*Libreboot ROM images have identical data in those two 64KiB regions because dd is used to do that, by the build system.
If you're building from upstream (coreboot), you have to do it manually.
</p>
<p>
BUC.TS is backed up (powered) by the NVRAM battery (or CMOS battery, as some people call it). On thinkpads,
this is typically in a yellow plastic package with the battery inside, connected via power lines to the
mainboard. Removing that battery removes power to BUC.TS, resetting the bit back to 0 (if you previously set
it to 1).
</p>
<p>
BUC.TS utility is included in libreboot_src.tar.xz and libreboot_util.tar.xz.<br/>
<b>If you downloaded from git, follow <a href="#build_meta">#build_meta</a> before you proceed.</b>
</p>
<p>
"BUC" means "<b>B</b>ack<b>u</b>p <b>C</b>ontrol" (it's a register) and "TS" means "<b>T</b>op <b>S</b>wap"
(it's a status bit). Hence "bucts" (BUC.TS). TS 1 and TS 0 corresponds to bucts 1 and bucts 0.
</p>
<p>
If you have the binary release archive, you'll find executables under ./bucts/. Otherwise if you need to build from source, continue reading.
</p>
<p>
First, <a href="#build_dependencies">install the build dependencies</a>.
</p>
<p>
To build bucts, do this in the main directory:<br/>
$ <b>./build module bucts</b>
</p>
<p>
To statically compile it, do this:<br/>
$ <b>./build module bucts static</b>
</p>
<p>
The "builddeps" script in libreboot_src also makes use of builddeps-bucts.
</p>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="build_flashrom">How to build "flashrom"</h1>
<p>
Flashrom is the utility for flashing/dumping ROM images. This is what you will use to install libreboot.
</p>
<p>
Flashrom source code is included in libreboot_src.tar.xz and libreboot_util.tar.xz.<br/>
<b>If you downloaded from git, follow <a href="#build_meta">#build_meta</a> before you proceed.</b>
</p>
<p>
If you are using the binary release archive, then there are already binaries included
under ./flashrom/. The flashing scripts will try to choose the correct one for you. Otherwise
if you wish to re-build flashrom from source, continue reading.
</p>
<p>
First, <a href="#build_dependencies">install the build dependencies</a>.
</p>
<p>
To build it, do the following in the main directory:<br/>
$ <b>./build module flashrom</b>
</p>
<p>
To statically compile it, do the following in the main directory:<br/>
$ <b>./build module flashrom static</b>
</p>
<p>
After you've done that, under ./flashrom/ you will find the following executables:
</p>
<ul>
<li>
<b>flashrom</b>
<ul>
<li>For flashing while coreboot or libreboot is running.</li>
</ul>
</li>
<li>
<b>flashrom_lenovobios_sst</b>
<ul>
<li>This is patched for flashing while Lenovo BIOS is running on an X60 or T60 with the SST25VF016B (SST) flash chip.</li>
</ul>
</li>
<li>
<b>flashrom_lenovobios_macronix</b>
<ul>
<li>This is patched for flashing while Lenovo BIOS is running on an X60 or T60 with the MX25L1605D (Macronix) flash chip.</li>
</ul>
</li>
</ul>
<p>
The "builddeps" script in libreboot_src also makes use of builddeps-flashrom.
</p>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="config">Configuring libreboot</h1>
<p>
Before building a ROM in libreboot (or coreboot, for that matter), you need to configure it.
This is done using the following inside the source tree:<br/>
$ <b>cd coreboot/</b><br/>
$ <b>make menuconfig</b>
</p>
<p>
If you've already built a kernel before, you know how to use this interface.
</p>
<p>
Configurations are then saved as files called <b>".config"</b>. Copies of each configuration used
for each machine type by the libreboot build scripts are stored in resources/libreboot/config/
</p>
<div class="subsection">
<h2 id="config_dmidecode">
dmidecode
</h2>
<p>
There is certain information that can be useful to enter in particular:
</p>
<ul>
<li>Local version string</li>
<li>SMBIOS Serial Number</li>
<li>SMBIOS Manufacturer</li>
<li>SMBIOS Version</li>
<li>SMBIOS Product name</li>
</ul>
<p>
This information can be obtained using:<br/>
<b>$ sudo dmidecode</b><br/>
<b># dmidecode</b>
</p>
<p>
Specifically, it's good practise to enter the same information for libreboot that you found when running this
with the original BIOS or firmware. <b>libreboot has already done this for you. This information is for reference,
in the hope that it will be useful.</b>
</p>
</div>
<div class="subsection">
<h2 id="config_x60">
ThinkPad X60, X60S and X60 Tablet configuration (file: resources/libreboot/config/x60/config)
</h2>
<ul>
<li>General setup / Expert mode = <i>enable</i></li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Lenovo</i></li>
<li>Mainboard / Mainboard model = <i>ThinkPad X60 / X60s / X60t</i></li>
<li>Mainboard / ROM chip size = <i>2048 KB (2 MB)</i></li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i>Net20DC or compatible</i></li>
<li>Generic Drivers / Digitizer = <i>Present</i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Now go back into Devices:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>x60/config</b> and is used by the build
scripts for this machine.
</p>
<p>
This configuration is used on all variants: X60, X60S and X60 Tablet.
</p>
</div>
<div class="subsection">
<h2 id="config_t60">
ThinkPad T60 configuration (file: resources/libreboot/config/t60/config)
</h2>
<ul>
<li>General setup / Expert mode = <i>enable</i></li>
<li>General setup / Local version string = <i>79ETE7WW (2.27 )</i></li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Lenovo</i></li>
<li>Mainboard / Mainboard model = <i>ThinkPad T60 / T60p</i></li>
<li>Mainboard / ROM chip size = <i>2048 KB (2 MB)</i></li>
<li>System tables / SMBIOS Serial Number = <i>L3DKE06</i></li>
<li>System tables / SMBIOS Version Number = <i>ThinkPad T60</i></li>
<li>System tables / SMBIOS Manufacturer = <i>LENOVO</i></li>
<li>System tables / SMBIOS Product name = <i>1951FEG</i></li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i>Net20DC or compatible</i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back into Devices:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>t60/config</b> and is used by the build
scripts for this machine.
</p>
<p>
It is believed that the motherboards on 14.1" and 15.1" T60s are the same, so the same configuration is used
on both the 14.1" and 15.1" T60s.
</p>
</div>
<div class="subsection">
<h2 id="config_x200">
ThinkPad X200 configuration (file: resources/libreboot/config/x200_4mb/config and resources/libreboot/config/x200_8mb/config)
</h2>
<p>
These are saved as two configs, because there are 2 size flash chips: 4MB or 8MB.
</p>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Lenovo</i></li>
<li>Mainboard / Mainboard model = <i>ThinkPad X200</i></li>
<li>Mainboard / ROM chip size = <i>4096 KB (4 MB)</i> or <i>8192 KB (8 MB)</i> depending on flash chip size</li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Chipset / Size of CBFS filesystem in ROM = byte size <i>0x7FD000</i> (for 8MB flash chip) or <i>3FD000</i> (for 4MB flash chip)</li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i>Net20DC or compatible</i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>x200_8mb/config</b> and
resources/libreboot/config/<b>x200_4mb/config</b> and is used by the build
scripts for this machine.
</p>
</div>
<div class="subsection">
<h2 id="config_r400">
ThinkPad R400 configuration (file: resources/libreboot/config/r400_4mb/config and resources/libreboot/config/r400_8mb/config)
</h2>
<p>
These are saved as two configs, because there are 2 size flash chips: 4MB or 8MB.
</p>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Lenovo</i></li>
<li>Mainboard / Mainboard model = <i>ThinkPad R400</i></li>
<li>Mainboard / ROM chip size = <i>4096 KB (4 MB)</i> or <i>8192 KB (8 MB)</i> depending on flash chip size</li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Chipset / Size of CBFS filesystem in ROM = byte size <i>0x7FD000</i> (for 8MB flash chip) or <i>3FD000</i> (for 4MB flash chip)</li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i>Net20DC or compatible</i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>r400_8mb/config</b> and
resources/libreboot/config/<b>r400_4mb/config</b> and is used by the build
scripts for this machine.
</p>
</div>
<div class="subsection">
<h2 id="config_t400">
ThinkPad T400 configuration (file: resources/libreboot/config/t400_4mb/config and resources/libreboot/config/t400_8mb/config)
</h2>
<p>
These are saved as two configs, because there are 2 size flash chips: 4MB or 8MB.
</p>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Lenovo</i></li>
<li>Mainboard / Mainboard model = <i>ThinkPad T400</i></li>
<li>Mainboard / ROM chip size = <i>4096 KB (4 MB)</i> or <i>8192 KB (8 MB)</i> depending on flash chip size</li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Chipset / Size of CBFS filesystem in ROM = byte size <i>0x7FD000</i> (for 8MB flash chip) or <i>3FD000</i> (for 4MB flash chip)</li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i>Net20DC or compatible</i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>t400_8mb/config</b> and
resources/libreboot/config/<b>t400_4mb/config</b> and is used by the build
scripts for this machine.
</p>
</div>
<div class="subsection">
<h2 id="config_t500">
ThinkPad T500 configuration (file: resources/libreboot/config/t500_4mb/config and resources/libreboot/config/t500_8mb/config)
</h2>
<p>
These are saved as two configs, because there are 2 size flash chips: 4MB or 8MB.
</p>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Lenovo</i></li>
<li>Mainboard / Mainboard model = <i>ThinkPad T500</i></li>
<li>Mainboard / ROM chip size = <i>4096 KB (4 MB)</i> or <i>8192 KB (8 MB)</i> depending on flash chip size</li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Chipset / Size of CBFS filesystem in ROM = byte size <i>0x7FD000</i> (for 8MB flash chip) or <i>3FD000</i> (for 4MB flash chip)</li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i>Net20DC or compatible</i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>t500_8mb/config</b> and
resources/libreboot/config/<b>t500_4mb/config</b> and is used by the build
scripts for this machine.
</p>
</div>
<div class="subsection">
<h2 id="config_macbook21">
MacBook2,1 configuration (file: resources/libreboot/config/macbook21/config)
</h2>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>General / Local version string = <i>" MB21.88Z.00A5.B07.0706270922"</i> (without the quotes)</li>
<li>General / Use CMOS for configuration values = <i>enable</i></li>
<li>General / Load default configuration values into CMOS on each boot = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Apple</i></li>
<li>Mainboard / Mainboard model = <i>Macbook2,1 ICH7 TESTING</i></li>
<li>Mainboard / ROM chip size = <i>2048 KB (2 MB)</i></li>
<li>System tables / SMBIOS Serial Number = <i>W8724XXXXXX</i></li>
<li>System tables / SMBIOS Version Number = <i>1.0</i></li>
<li>System tables / SMBIOS Manufacturer = <i>Apple Inc.</i></li>
<li>System tables / SMBIOS Product Name = <i>MacBook2,1</i></li>
<li>Chipset / Include CPU microcode in CBFS = <i>Do not include microcode updates</i></li>
<li>Devices / Use native graphics initialization = <i>enable</i></li>
<li>
Display / Keep VESA framebuffer = <i>disable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with text-mode enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot framebuffer for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Generic Drivers / USB 2.0 EHCI debug dongle support = <i>Enable</i></li>
<li>Generic Drivers / Enable early (pre-RAM) usbdebug = <i>Enable</i></li>
<li>Generic Drivers / Type of dongle = <i></i></li>
<li>Console / USB dongle console output = <i>enable</i></li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>macbook21/config</b> and is used by the build
scripts for this machine. <b>This config is also used for the MacBook1,1</b>.
</p>
</div>
<div class="subsection">
<h2 id="config_qemu_i440fx_piix4">
QEMU (x86 i440fx/piix4) configuration (file: resources/libreboot/config/qemu_i440fx_piix4/config)
</h2>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Emulation</i></li>
<li>Mainboard / Mainboard model = <i>QEMU x86 i440fx/piix4 (aka qemu -M pc)</i></li>
<li>Mainboard / ROM chip size = <i>8192 KB (8 MB)</i></li>
<li>Devices / Use native graphics initialization = <i>enable</i> (should already be enabled)</li>
<li>
Display / Keep VESA framebuffer = <i>enable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with framebuffer enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot text-mode for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>qemu_i440fx_piix4/config</b> and is used by the build
scripts for this machine.
</p>
</div>
<div class="subsection">
<h2 id="config_qemu_q35_ich9">
QEMU (x86 q35/ich9) configuration (file: resources/libreboot/config/qemu_q35_ich9/config)
</h2>
<ul>
<li>General / Expert mode = <i>enable</i></li>
<li>Mainboard / Mainboard vendor = <i>Emulation</i></li>
<li>Mainboard / Mainboard model = <i>QEMU x86 q35/ich9 (aka qemu -M q35)</i></li>
<li>Mainboard / ROM chip size = <i>8192 KB (8 MB)</i></li>
<li>Devices / Use native graphics initialization = <i>enable</i> (should already be enabled)</li>
<li>
Display / Keep VESA framebuffer = <i>enable</i> (disable for text-mode graphics, enable for coreboot vesa framebuffer)
<ul>
<li>Libreboot provides this with framebuffer enabled by default, but it automatically patches a copy of the config at build time
to enable coreboot text-mode for a separate set of ROM images, in each machine.</li>
</ul>
</li>
<li>Payload / Add a payload = <i>An ELF executable payload</i></li>
<li>Payload / Payload path and filename = <i>grub.elf</i></li>
</ul>
<p>
Go back and disable option ROMs:
</p>
<ul>
<li>Devices / Run VGA Option ROMs = <i>disable</i></li>
<li>Devices / Run Option ROMs on PCI devices = <i>disable</i></li>
</ul>
<p>
The resulting .config file was saved as resources/libreboot/config/<b>qemu_q35_ich9/config</b> and is used by the build
scripts for this machine.
</p>
</div>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="build">How to build the ROM images</h1>
<p>You don't need to do much, as there are scripts already written for you that can build everything automatically.</p>
<p>
You can build libreboot from source on a 32-bit (i686) or 64-bit (x86_64) system. Recommended (if possible): x86_64.
On a ThinkPad T60, you can replace the CPU (Core 2 Duo T5600, T7200 or T7600. T5600 recommended) for 64-bit support.
On an X60s, you can replace the board with one that has a Core 2 Duo L7400 (you could also use an X60 Tablet board with the same CPU).
On an X60, you can replace the board with one that has a Core 2 Duo T5600 or T7200 (T5600 is recommended). All MacBook2,1 laptops
are 64-bit, as are all ThinkPad X200, X200S, X200 Tablet, R400, T400 and T500 laptops. Warning: MacBook1,1 laptops are all 32-bit only.
</p>
<p>
First, <a href="#build_dependencies">install the build dependencies</a>.
</p>
<p>
If you downloaded libreboot from git, refer to <a href="#build_meta">#build_meta</a>.
</p>
<p>
Build all of the components used in libreboot:<br/>
$ <b>./build module all</b>
</p>
<p>
After that, build the ROM images (for all boards):<br/>
$ <b>./build roms withgrub</b><br/>
Alternatively, you can build for a specific board or set of boards.
For example:<br/>
$ <b>./build roms withgrub x60</b><br/>
$ <b>./build roms withgrub x200_8mb</b><br/>
$ <b>./build roms withgrub x60 x200_8mb</b><br/>
The list of board options can be found by looking at the directory
names in <b>resources/libreboot/config/</b>.
</p>
<p>
To clean (reverse) everything, do the following:<br/>
$ <b>./build clean all</b>
</p>
<p>
The ROM images will be stored under <b>bin/</b>.
</p>
<div class="subsection">
<h2>Preparing release archives (optional)</h2>
<p>
<b>This is only confirmed to work (tested) in Trisquel 7. Parabola *fails* at this stage
(for now).</b>
</p>
<p>
Do the following:<br/>
$ <b>./build release archives</b>
</p>
<p>
If you are building on an i686 host, this will build statically linked 32-bit binaries in
the binary release archive that you created,
for: <b>nvramtool, cbfstool, ich9deblob, cbmem</b>.
</p>
<p>
If you are building on an x86_64 host, this will build statically linked 32- *and* 64-bit binaries for
<b>cbmem</b>, <b>ich9deblob</b>, <b>cbfstool</b> and <b>nvramtool</b>.
</p>
<p>
<b>To include statically linked i686 and x86_64 binaries for bucts and flashrom,
you will need to build them on a chroot, a virtual machine or a real
system where the host uses each given architecture. These packages are difficult
to cross-compile, and the libreboot project is still figuring out how to deal
with them.</b>
</p>
<p>
The same applies if you want to include statically linked flashrom binaries for ARM.
</p>
<p>
armv7l binaries (tested on a BeagleBone Black) are also included in libreboot_util, for:
</p>
<ul>
<li>cbfstool</li>
<li>ich9gen</li>
<li>ich9deblob</li>
<li>flashrom</li>
</ul>
<p>
If you are building binaries on a live system or chroot (for flashrom/bucts), you can use the following to statically link them:<br/>
$ <b>./build module flashrom static</b><br/>
$ <b>./build module bucts static</b>
</p>
<p>
The same conditions as above apply for ARM (except, building bucts on ARM is pointless, and for flashrom
you only need the normal executable since the lenovobios_sst and _macronix executables are meant
to run on an X60/T60 while lenovo bios is present, working around the security restrictions).
</p>
<p>
The command that you used for generating the release archives will also run the following command:<br/>
$ <b>./build external source</b><br/>
The archive <b>tobuild.tar.xz</b> will have been created under <b>release/</b>, containing bucts, flashrom and all other required
resources for building them.
</p>
<p>
You'll find that the files libreboot_util.tar.xz and libreboot_src.tar.xz have been created, under <b>release/</b>.
</p>
<p>
The ROM images will be stored in separate archives for each machine, under <b>release/rom/</b>.
</p>
</div>
<p><a href="#pagetop">Back to top of page</a></p>
</div>
<div class="section">
<p>
Copyright © 2014, 2015 Francis Rowe <info@gluglug.org.uk><br/>
This document is released under the Creative Commons Attribution-ShareAlike 4.0 International Public License and all future versions.
A copy of the license can be found at <a href="../license.txt">../license.txt</a>.
</p>
<p>
This document is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See <a href="../license.txt">../license.txt</a> for more information.
</p>
</div>
</body>
</html>
|
