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Patrick Williamsc124f4f2015-09-15 14:41:29 -05001<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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3[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
4
5<article id='yocto-project-qs-intro'>
6 <articleinfo>
7 <title>Yocto Project Quick Start</title>
8
9 <copyright>
10 <year>&COPYRIGHT_YEAR;</year>
11 <holder>Linux Foundation</holder>
12 </copyright>
13
14 <legalnotice>
15 <para>
16 Permission is granted to copy, distribute and/or modify this document under
17 the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
18 </para>
19 <note>
20 For the latest version of this manual associated with this
21 Yocto Project release, see the
22 <ulink url='&YOCTO_DOCS_QS_URL;'>Yocto Project Quick Start</ulink>
23 from the Yocto Project website.
24 </note>
25 </legalnotice>
26
27
28 <abstract>
29 <imagedata fileref="figures/yocto-project-transp.png"
30 width="6in" depth="1in"
31 align="right" scale="25" />
32 </abstract>
33 </articleinfo>
34
35 <section id='welcome'>
36 <title>Welcome!</title>
37 <para>
38 Welcome to the Yocto Project!
39 The Yocto Project is an open-source collaboration project whose
40 focus is developers of embedded Linux systems.
41 Among other things, the Yocto Project uses a build host based
42 on the OpenEmbedded (OE) project, which uses the
43 <ulink url='&YOCTO_DOCS_DEV_URL;#bitbake-term'>BitBake</ulink>
44 tool, to construct complete Linux images.
45 The BitBake and OE components are combined together to form
46 a reference build host, historically known as
47 <ulink url='&YOCTO_DOCS_DEV_URL;#poky'>Poky</ulink>.
48 </para>
49
50 <para>
51 If you do not have a system that runs Linux and you want to give
52 the Yocto Project a test run, you might consider using the Yocto
53 Project Build Appliance.
54 The Build Appliance allows you to build and boot a custom embedded
55 Linux image with the Yocto Project using a non-Linux development
56 system.
57 See the
58 <ulink url='https://www.yoctoproject.org/tools-resources/projects/build-appliance'>Yocto Project Build Appliance</ulink>
59 for more information.
60 </para>
61
62 <para>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050063 This quick start is written so that you can quickly get a
Patrick Williamsc124f4f2015-09-15 14:41:29 -050064 build host set up to use the Yocto Project and then build some
65 Linux images.
66 Rather than go into great detail about the Yocto Project and its
67 many capabilities, this quick start provides the minimal
68 information you need to try out the Yocto Project using a
69 supported Linux build host.
70 Reading and using the quick start should result in you having a
71 basic understanding of what the Yocto Project is and how to use
72 some of its core components.
73 You will also have worked through steps to produce two images:
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050074 one that is suitable for emulation and one that boots on actual
Patrick Williamsc124f4f2015-09-15 14:41:29 -050075 hardware.
76 The examples highlight the ease with which you can use the
77 Yocto Project to create images for multiple types of hardware.
78 </para>
79
80 <para>
81 For more detailed information on the Yocto Project, you can
82 reference these resources:
83 <itemizedlist>
84 <listitem><para><emphasis>Website:</emphasis>
85 The
86 <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>
87 provides the latest builds, breaking news, full development
88 documentation, and access to a rich Yocto Project
89 Development Community into which you can tap.
90 </para></listitem>
91 <listitem><para><emphasis>FAQs:</emphasis>
92 Lists commonly asked Yocto Project questions and answers.
93 You can find two FAQs:
94 <ulink url='&YOCTO_WIKI_URL;/wiki/FAQ'>Yocto Project FAQ</ulink>
95 on a wiki, and the
96 "<ulink url='&YOCTO_DOCS_REF_URL;#faq'>FAQ</ulink>"
97 chapter in the Yocto Project Reference Manual.
98 </para></listitem>
99 <listitem><para><emphasis>Developer Screencast:</emphasis>
100 The
101 <ulink url='http://vimeo.com/36450321'>Getting Started with the Yocto Project - New Developer Screencast Tutorial</ulink>
102 provides a 30-minute video created for users unfamiliar
103 with the Yocto Project but familiar with Linux build
104 hosts.
105 While this screencast is somewhat dated, the introductory
106 and fundamental concepts are useful for the beginner.
107 </para></listitem>
108 </itemizedlist>
109 </para>
110 </section>
111
112 <section id='yp-intro'>
113 <title>Introducing the Yocto Project Development Environment</title>
114
115 <para>
116 The Yocto Project through the OpenEmbedded build system provides an
117 open source development environment targeting the ARM, MIPS,
118 PowerPC, and x86 architectures for a variety of platforms
119 including x86-64 and emulated ones.
120 You can use components from the Yocto Project to design, develop,
121 build, debug, simulate, and test the complete software stack using
122 Linux, the X Window System, GTK+ frameworks, and Qt frameworks.
123 </para>
124
125 <mediaobject>
126 <imageobject>
127 <imagedata fileref="figures/yocto-environment.png"
128 format="PNG" align='center' scalefit='1' width="100%"/>
129 </imageobject>
130 <caption>
131 <para>The Yocto Project Development Environment</para>
132 </caption>
133 </mediaobject>
134
135 <para>
136 Here are some highlights for the Yocto Project:
137 </para>
138
139 <itemizedlist>
140 <listitem><para>
141 Provides a recent Linux kernel along with a set of system
142 commands and libraries suitable for the embedded
143 environment.
144 </para></listitem>
145 <listitem><para>
146 Makes available system components such as X11, GTK+, Qt,
147 Clutter, and SDL (among others) so you can create a rich user
148 experience on devices that have display hardware.
149 For devices that do not have a display or where you wish to
150 use alternative UI frameworks, these components need not be
151 installed.
152 </para></listitem>
153 <listitem><para>
154 Creates a focused and stable core compatible with the
155 OpenEmbedded project with which you can easily and reliably
156 build and develop.
157 </para></listitem>
158 <listitem><para>
159 Fully supports a wide range of hardware and device emulation
160 through the Quick EMUlator (QEMU).
161 </para></listitem>
162 <listitem><para>
163 Provides a layer mechanism that allows you to easily extend
164 the system, make customizations, and keep them organized.
165 </para></listitem>
166 </itemizedlist>
167
168 <para>
169 You can use the Yocto Project to generate images for many kinds
170 of devices.
171 As mentioned earlier, the Yocto Project supports creation of
172 reference images that you can boot within and emulate using QEMU.
173 The standard example machines target QEMU full-system
174 emulation for 32-bit and 64-bit variants of x86, ARM, MIPS, and
175 PowerPC architectures.
176 Beyond emulation, you can use the layer mechanism to extend
177 support to just about any platform that Linux can run on and that
178 a toolchain can target.
179 </para>
180
181 <para>
182 Another Yocto Project feature is the Sato reference User
183 Interface.
184 This optional UI that is based on GTK+ is intended for devices with
185 restricted screen sizes and is included as part of the
186 OpenEmbedded Core layer so that developers can test parts of the
187 software stack.
188 </para>
189 </section>
190
191 <section id='yp-resources'>
192 <title>Setting Up to Use the Yocto Project</title>
193
194 <para>
195 The following list shows what you need in order to use a
196 Linux-based build host to use the Yocto Project to build images:
197 </para>
198
199 <itemizedlist>
200 <listitem><para><emphasis>Build Host</emphasis>
201 A build host with a minimum of 50 Gbytes of free disk
202 space that is running a supported Linux distribution (i.e.
203 recent releases of Fedora, openSUSE, CentOS, Debian, or
204 Ubuntu).
205 </para></listitem>
206 <listitem><para><emphasis>Build Host Packages</emphasis>
207 Appropriate packages installed on the build host.
208 </para></listitem>
209 <listitem><para><emphasis>The Yocto Project</emphasis>
210 A release of the Yocto Project.
211 </para></listitem>
212 </itemizedlist>
213
214 <section id='the-linux-distro'>
215 <title>The Linux Distribution</title>
216
217 <para>
218 The Yocto Project team verifies each release against recent
219 versions of the most popular Linux distributions that
220 provide stable releases.
221 In general, if you have the current release minus one of the
222 following distributions, you should have no problems.
223 <itemizedlist>
224 <listitem><para>
225 Ubuntu
226 </para></listitem>
227 <listitem><para>
228 Fedora
229 </para></listitem>
230 <listitem><para>
231 openSUSE
232 </para></listitem>
233 <listitem><para>
234 CentOS
235 </para></listitem>
236 <listitem><para>
237 Debian
238 </para></listitem>
239 </itemizedlist>
240 For a more detailed list of distributions that support the
241 Yocto Project, see the
242 "<ulink url='&YOCTO_DOCS_REF_URL;#detailed-supported-distros'>Supported Linux Distributions</ulink>"
243 section in the Yocto Project Reference Manual.
244 </para>
245
246 <para>
247 The OpenEmbedded build system should be able to run on any
248 modern distribution that has the following versions for
249 Git, tar, and Python.
250 <itemizedlist>
251 <listitem><para>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500252 Git 1.8.3.1 or greater
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500253 </para></listitem>
254 <listitem><para>
255 tar 1.24 or greater
256 </para></listitem>
257 <listitem><para>
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600258 Python 3.4.0 or greater.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500259 </para></listitem>
260 </itemizedlist>
261 If your build host does not meet any of these three listed
262 version requirements, you can take steps to prepare the
263 system so that you can still use the Yocto Project.
264 See the
265 "<ulink url='&YOCTO_DOCS_REF_URL;#required-git-tar-and-python-versions'>Required Git, tar, and Python Versions</ulink>"
266 section in the Yocto Project Reference Manual for information.
267 </para>
268 </section>
269
270 <section id='packages'>
271 <title>The Build Host Packages</title>
272
273 <para>
274 Required build host packages vary depending on your
275 build machine and what you want to do with the Yocto Project.
276 For example, if you want to build an image that can run
277 on QEMU in graphical mode (a minimal, basic build
278 requirement), then the build host package requirements
279 are different than if you want to build an image on a headless
280 system or build out the Yocto Project documentation set.
281 </para>
282
283 <para>
284 Collectively, the number of required packages is large
285 if you want to be able to cover all cases.
286 <note>
287 In general, you need to have root access and then install
288 the required packages.
289 Thus, the commands in the following section may or may
290 not work depending on whether or not your Linux
291 distribution has <filename>sudo</filename> installed.
292 </note>
293 </para>
294
295 <para>
296 The following list shows the required packages needed to build
297 an image that runs on QEMU in graphical mode (e.g. essential
298 plus graphics support).
299 For lists of required packages for other scenarios, see the
300 "<ulink url='&YOCTO_DOCS_REF_URL;#required-packages-for-the-host-development-system'>Required Packages for the Host Development System</ulink>"
301 section in the Yocto Project Reference Manual.
302 <itemizedlist>
303 <listitem><para><emphasis>Ubuntu and Debian</emphasis>
304 <literallayout class='monospaced'>
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500305 $ sudo apt-get install &UBUNTU_HOST_PACKAGES_ESSENTIAL; \
306 libsdl1.2-dev xterm
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500307 </literallayout>
308 </para></listitem>
309 <listitem><para><emphasis>Fedora</emphasis>
310 <literallayout class='monospaced'>
Patrick Williamsf1e5d692016-03-30 15:21:19 -0500311 $ sudo dnf install &FEDORA_HOST_PACKAGES_ESSENTIAL; SDL-devel xterm
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500312 </literallayout>
313 </para></listitem>
314 <listitem><para><emphasis>OpenSUSE</emphasis>
315 <literallayout class='monospaced'>
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500316 $ sudo zypper install &OPENSUSE_HOST_PACKAGES_ESSENTIAL; \
317 libSDL-devel xterm
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500318 </literallayout>
319 </para></listitem>
320 <listitem><para><emphasis>CentOS</emphasis>
321 <literallayout class='monospaced'>
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500322 $ sudo yum install &CENTOS_HOST_PACKAGES_ESSENTIAL; \
323 SDL-devel xterm
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500324 </literallayout>
325 <note>
326 CentOS 6.x users need to ensure that the required
327 versions of Git, tar and Python are available.
328 For details, See the
329 "<ulink url='&YOCTO_DOCS_REF_URL;#required-git-tar-and-python-versions'>Required Git, tar, and Python Versions</ulink>"
330 section in the Yocto Project Reference Manual for
331 information.
332 </note>
333 </para></listitem>
334 </itemizedlist>
335 </para>
336 </section>
337
338 <section id='releases'>
339 <title>Yocto Project Release</title>
340
341 <para>
342 The last requirement you need to meet before using the
343 Yocto Project is getting a Yocto Project release.
344 It is recommended that you get the latest Yocto Project release
345 by setting up (cloning in
346 <ulink url='&YOCTO_DOCS_DEV_URL;#git'>Git</ulink> terms) a
347 local copy of the <filename>poky</filename> Git repository on
348 your build host and then checking out the latest release.
349 Doing so allows you to easily update to newer Yocto Project
350 releases as well as contribute back to the Yocto Project.
351 </para>
352
353 <para>
354 Here is an example from an Ubuntu build host that clones the
355 <filename>poky</filename> repository and then checks out the
356 latest Yocto Project Release (i.e. &DISTRO;):
357 <literallayout class='monospaced'>
358 $ git clone git://git.yoctoproject.org/poky
359 Cloning into 'poky'...
360 remote: Counting objects: 226790, done.
361 remote: Compressing objects: 100% (57465/57465), done.
362 remote: Total 226790 (delta 165212), reused 225887 (delta 164327)
363 Receiving objects: 100% (226790/226790), 100.98 MiB | 263 KiB/s, done.
364 Resolving deltas: 100% (165212/165212), done.
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500365 $ git checkout &DISTRO_NAME_NO_CAP;
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500366 </literallayout>
367 You can also get the Yocto Project Files by downloading
368 Yocto Project releases from the
369 <ulink url="&YOCTO_HOME_URL;">Yocto Project website</ulink>.
370 </para>
371
372 <para>
373 For more information on getting set up with the Yocto Project
374 release, see the
375 "<ulink url='&YOCTO_DOCS_DEV_URL;#local-yp-release'>Yocto Project Release</ulink>"
376 item in the Yocto Project Development Manual.
377 </para>
378 </section>
379 </section>
380
381 <section id='qs-building-images'>
382 <title>Building Images</title>
383
384 <para>
385 Now that you have your system requirements in order, you can give
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500386 Yocto Project a try.
387 You can try out Yocto Project using either the command-line
388 interface or using Toaster, which uses a graphical user
389 interface.
390 If you want to try out the Yocto Project using a GUI, see the
391 <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>
392 for information on how to install and set up Toaster.
393 </para>
394
395 <para>
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600396 To use the Yocto Project through the command-line interface,
397 finish this quick start, which presents steps that let you
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500398 do the following:
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500399 <itemizedlist>
400 <listitem><para>
401 Build a <filename>qemux86</filename> reference image
402 and run it in the QEMU emulator.
403 </para></listitem>
404 <listitem><para>
405 Easily change configurations so that you can quickly
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600406 create a second image that you can load onto bootable
407 media and actually boot target hardware.
408 This example uses the MinnowBoard
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500409 MAX-compatible boards.
410 </para></listitem>
411 </itemizedlist>
412 <note>
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600413 The steps in the following two sections do not provide detail,
414 but rather provide minimal, working commands and examples
415 designed to just get you started.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500416 For more details, see the appropriate manuals in the
417 <ulink url='&YOCTO_HOME_URL;/documentation'>Yocto Project manual set</ulink>.
418 </note>
419 </para>
420
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600421 <section id='building-an-image-for-emulation'>
422 <title>Building an Image for Emulation</title>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500423
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600424 <para>
425 Use the following commands to build your image.
426 The OpenEmbedded build system creates an entire Linux
427 distribution, including the toolchain, from source.
428 <note><title>Note about Network Proxies</title>
429 <para>
430 By default, the build process searches for source code
431 using a pre-determined order through a set of
432 locations.
433 If you are working behind a firewall and your build
434 host is not set up for proxies, you could encounter
435 problems with the build process when fetching source
436 code (e.g. fetcher failures or Git failures).
437 </para>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500438
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600439 <para>
440 If you do not know your proxy settings, consult your
441 local network infrastructure resources and get that
442 information.
443 A good starting point could also be to check your web
444 browser settings.
445 Finally, you can find more information on using the
446 Yocto Project behind a firewall in the Yocto Project
447 Reference Manual
448 <ulink url='&YOCTO_DOCS_REF_URL;#how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server'>FAQ</ulink>
449 and on the
450 "<ulink url='https://wiki.yoctoproject.org/wiki/Working_Behind_a_Network_Proxy'>Working Behind a Network Proxy</ulink>"
451 wiki page.
452 </para>
453 </note>
454 </para>
455
456 <para>
457 <orderedlist>
458 <listitem><para><emphasis>Be Sure Your Build Host is Set Up:</emphasis>
459 The steps to build an image in this section depend on
460 your build host being properly set up.
461 Be sure you have worked through the requirements
462 described in the
463 "<link linkend='yp-resources'>Setting Up to Use the Yocto Project</link>"
464 section.
465 </para></listitem>
466 <listitem><para><emphasis>Check Out Your Branch:</emphasis>
467 Be sure you are in the
468 <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>
469 (e.g. <filename>poky</filename>) and then check out
470 the branch associated with the latest Yocto Project
471 Release:
472 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500473 $ cd ~/poky
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500474 $ git checkout -b &DISTRO_NAME_NO_CAP; origin/&DISTRO_NAME_NO_CAP;
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600475 </literallayout>
476 Git's <filename>checkout</filename> command checks out
477 the current Yocto Project release into a local branch
478 whose name matches the release (i.e.
479 <filename>&DISTRO_NAME_NO_CAP;</filename>).
480 The local branch tracks the upstream branch of the
481 same name.
482 Creating your own branch based on the released
483 branch ensures you are using the latest files for
484 that release.
485 </para></listitem>
486 <listitem><para><emphasis>Initialize the Build Environment:</emphasis>
487 Run the
488 <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
489 environment setup script to define the OpenEmbedded
490 build environment on your build host.
491 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500492 $ source &OE_INIT_FILE;
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600493 </literallayout>
494 Among other things, the script creates the
495 <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>,
496 which is <filename>build</filename> in this case
497 and is located in the
498 <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>.
499 After the script runs, your current working directory
500 is set to the Build Directory.
501 Later, when the build completes, the Build Directory
502 contains all the files created during the build.
503 <note>
504 For information on running a memory-resident
505 <ulink url='&YOCTO_DOCS_REF_URL;#usingpoky-components-bitbake'>BitBake</ulink>,
506 see the
507 <ulink url='&YOCTO_DOCS_REF_URL;#structure-memres-core-script'><filename>oe-init-build-env-memres</filename></ulink>
508 setup script.
509 </note>
510 </para></listitem>
511 <listitem><para><emphasis>Examine Your Local Configuration File:</emphasis>
512 When you set up the build environment, a local
513 configuration file named
514 <filename>local.conf</filename> becomes available in
515 a <filename>conf</filename> subdirectory of the
516 Build Directory.
517 Before using BitBake to start the build, you can
518 look at this file and be sure your general
519 configurations are how you want them:
520 <itemizedlist>
521 <listitem><para>
522 To help conserve disk space during builds,
523 you can add the following statement to your
524 project's configuration file, which for this
525 example is
526 <filename>poky/build/conf/local.conf</filename>.
527 Adding this statement deletes the work
528 directory used for building a recipe once the
529 recipe is built.
530 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500531 INHERIT += "rm_work"
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600532 </literallayout>
533 </para></listitem>
534 <listitem><para>
535 By default, the target machine for the build is
536 <filename>qemux86</filename>,
537 which produces an image that can be used in
538 the QEMU emulator and is targeted at an
539 <trademark class='registered'>Intel</trademark>
540 32-bit based architecture.
541 Further on in this example, this default is
542 easily changed through the
543 <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
544 variable so that you can quickly
545 build an image for a different machine.
546 </para></listitem>
547 <listitem><para>
548 Another consideration before you build is the
549 package manager used when creating the image.
550 The default <filename>local.conf</filename>
551 file selects the RPM package manager.
552 You can control this configuration by using the
553 <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink></filename>
554 variable.</para>
555 <para>Selection of the package manager is separate
556 from whether package management is used at runtime
557 in the target image.</para>
558 <para>For additional package manager selection
559 information, see the
560 "<ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-package'><filename>package.bbclass</filename></ulink>"
561 section in the Yocto Project Reference Manual.
562 </para></listitem>
563 </itemizedlist>
564 </para></listitem>
565 <listitem><para><emphasis>Start the Build:</emphasis>
566 Continue with the following command to build an OS image
567 for the target, which is
568 <filename>core-image-sato</filename> in this example:
569 <note>
570 Depending on the number of processors and cores, the
571 amount of RAM, the speed of your Internet connection
572 and other factors, the build process could take several
573 hours the first time you run it.
574 Subsequent builds run much faster since parts of the
575 build are cached.
576 </note>
577 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500578 $ bitbake core-image-sato
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600579 </literallayout>
580 For information on using the
581 <filename>bitbake</filename> command, see the
582 "<ulink url='&YOCTO_DOCS_REF_URL;#usingpoky-components-bitbake'>BitBake</ulink>"
583 section in the Yocto Project Reference Manual, or see the
584 "<ulink url='&YOCTO_DOCS_BB_URL;#bitbake-user-manual-command'>BitBake Command</ulink>"
585 section in the BitBake User Manual.
586 For information on other targets, see the
587 "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
588 chapter in the Yocto Project Reference Manual.
589 </para></listitem>
590 <listitem><para><emphasis>Simulate Your Image Using QEMU:</emphasis>
591 Once this particular image is built, you can start QEMU
592 and run the image:
593 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500594 $ runqemu qemux86
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600595 </literallayout>
596 If you want to learn more about running QEMU, see the
597 "<ulink url="&YOCTO_DOCS_DEV_URL;#dev-manual-qemu">Using the Quick EMUlator (QEMU)</ulink>"
598 chapter in the Yocto Project Development Manual.
599 </para></listitem>
600 <listitem><para><emphasis>Exit QEMU:</emphasis>
601 Exit QEMU by either clicking on the shutdown icon or by
602 opening a terminal, typing
603 <filename>poweroff</filename>, and then pressing "Enter".
604 </para></listitem>
605 </orderedlist>
606 </para>
607 </section>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500608
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600609 <section id='building-an-image-for-hardware'>
610 <title>Building an Image for Hardware</title>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500611
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600612 <para id='qs-minnowboard-example'>
613 The following steps show how easy it is to set up to build an
614 image for a new machine.
615 These steps build an image for the MinnowBoard MAX, which is
616 supported by the Yocto Project and the
617 <filename>meta-intel</filename> <filename>intel-corei7-64</filename>
618 and <filename>intel-core2-32</filename> Board Support Packages
619 (BSPs).
620 <note>
621 The MinnowBoard MAX ships with 64-bit firmware.
622 If you want to use the board in 32-bit mode, you must
623 download the
624 <ulink url='http://firmware.intel.com/projects/minnowboard-max'>32-bit firmware</ulink>.
625 </note>
626 </para>
627
628 <para>
629 <orderedlist>
630 <listitem><para><emphasis>Create a Local Copy of the
631 <filename>meta-intel</filename> Repository:</emphasis>
632 Building an image for the MinnowBoard MAX requires the
633 <filename>meta-intel</filename> layer.
634 Use the <filename>git clone</filename> command to create
635 a local copy of the repository inside your
636 <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>,
637 which is <filename>poky</filename> in this example:
638 <literallayout class='monospaced'>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500639 $ cd $HOME/poky
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500640 $ git clone git://git.yoctoproject.org/meta-intel
641 Cloning into 'meta-intel'...
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500642 remote: Counting objects: 11988, done.
643 remote: Compressing objects: 100% (3884/3884), done.
644 Receiving objects: 100% (11988/11988), 2.93 MiB | 2.51 MiB/s, done.
645 remote: Total 11988 (delta 6881), reused 11752 (delta 6645)
646 Resolving deltas: 100% (6881/6881), done.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500647 Checking connectivity... done.
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600648 </literallayout>
649 By default when you clone a Git repository, the
650 "master" branch is checked out.
651 Before you build your image that uses the
652 <filename>meta-intel</filename> layer, you must be
653 sure that both repositories
654 (<filename>meta-intel</filename> and
655 <filename>poky</filename>) are using the same releases.
656 Consequently, you need to checkout out the
657 "<filename>&DISTRO_NAME_NO_CAP;</filename>" release after
658 cloning <filename>meta-intel</filename>:
659 <literallayout class='monospaced'>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500660 $ cd $HOME/poky/meta-intel
661 $ git checkout &DISTRO_NAME_NO_CAP;
662 Branch &DISTRO_NAME_NO_CAP; set up to track remote branch &DISTRO_NAME_NO_CAP; from origin.
663 Switched to a new branch '&DISTRO_NAME_NO_CAP;'
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600664 </literallayout>
665 </para></listitem>
666 <listitem><para><emphasis>Configure the Build:</emphasis>
667 To configure the build, you edit the
668 <filename>bblayers.conf</filename> and
669 <filename>local.conf</filename> files, both of which are
670 located in the <filename>build/conf</filename> directory.
671 </para>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500672
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600673 <para>Here is a quick way to make the edits.
674 The first command uses the
675 <filename>bitbake-layers add-layer</filename> command
676 to add the <filename>meta-intel</filename>
677 layer, which contains the <filename>intel-core*</filename>
678 BSPs to the build.
679 The second command selects the BSP by setting the
680 <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
681 variable.
682 <literallayout class='monospaced'>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500683 $ cd $HOME/poky/build
684 $ bitbake-layers add-layer "$HOME/poky/meta-intel"
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500685 $ echo 'MACHINE = "intel-corei7-64"' >> conf/local.conf
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600686 </literallayout>
687 <note><title>Notes</title>
688 <para>
689 If you want a 64-bit build, use the following:
690 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500691 $ echo 'MACHINE = "intel-corei7-64"' >> conf/local.conf
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600692 </literallayout>
693 </para>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500694
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600695 <para>
696 If you want 32-bit images, use the following:
697 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500698 $ echo 'MACHINE = "intel-core2-32"' >> conf/local.conf
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600699 </literallayout>
700 </para>
701 </note>
702 </para></listitem>
703 <listitem><para><emphasis>Build an Image for MinnowBoard MAX:</emphasis>
704 The type of image you build depends on your goals.
705 For example, the previous build created a
706 <filename>core-image-sato</filename> image, which is an
707 image with Sato support.
708 It is possible to build many image types for the
709 MinnowBoard MAX.
710 Some possibilities are <filename>core-image-base</filename>,
711 which is a console-only image.
712 Another choice could be a
713 <filename>core-image-full-cmdline</filename>, which is
714 another console-only image but has more full-features
715 Linux system functionality installed.
716 For types of images you can build using the Yocto
717 Project, see the
718 "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
719 chapter in the Yocto Project Reference Manual.</para>
720 <para>Because configuration changes are minimal to set up
721 for this second build, the OpenEmbedded build system can
722 re-use files from previous builds as much as possible.
723 Re-using files means this second build will be much faster
724 than an initial build.
725 For this example, the <filename>core-image-base</filename>
726 image is built:
727 <literallayout class='monospaced'>
728 $ bitbake core-image-base
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500729 </literallayout>
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600730 Once the build completes, the resulting console-only image
731 is located in the Build Directory here:
732 <literallayout class='monospaced'>
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500733 tmp/deploy/images/intel-corei7-64/core-image-base-intel-corei7-64.wic
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600734 </literallayout>
735 </para></listitem>
736 <listitem><para><emphasis>Write the Image:</emphasis>
737 You can write the image just built to a bootable media
738 (e.g. a USB key, SATA drive, SD card, etc.) using the
739 <filename>dd</filename> utility:
740 <literallayout class='monospaced'>
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500741 $ sudo dd if=tmp/deploy/images/intel-corei7-64/core-image-base-intel-corei7-64.wic of=TARGET_DEVICE
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600742 </literallayout>
743 In the previous command, the
744 <filename>TARGET_DEVICE</filename> is the device node in
745 the host machine (e.g. <filename>/dev/sdc</filename>, which
746 is most likely a USB stick, or
747 <filename>/dev/mmcblk0</filename>, which is most likely an
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500748 SD card).
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600749 </para></listitem>
750 <listitem><para><emphasis>Boot the Hardware:</emphasis>
751 With the boot device provisioned, you can insert the
752 media into the MinnowBoard MAX and boot the hardware.
753 The board should automatically detect the media and boot to
754 the bootloader and subsequently the operating system.
755 </para>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500756
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600757 <para>If the board does not boot automatically, you can
758 boot it manually from the EFI shell as follows:
759 <literallayout class='monospaced'>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500760 Shell> connect -r
761 Shell> map -r
762 Shell> fs0:
763 Shell> bootx64
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500764 </literallayout>
Patrick Williamsc0f7c042017-02-23 20:41:17 -0600765 <note>
766 For a 32-bit image use the following:
767 <literallayout class='monospaced'>
768 Shell> bootia32
769 </literallayout>
770 </note>
771 </para></listitem>
772 </orderedlist>
773 </para>
774 </section>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500775 </section>
776
777 <section id='qs-next-steps'>
778 <title>Next Steps</title>
779
780 <para>
781 If you completed all the steps in the previous section then
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500782 congratulations!
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500783 What now?
784 </para>
785
786 <para>
787 Depending on what you primary interests are with the Yocto Project,
788 you could consider any of the following:
789 <itemizedlist>
790 <listitem><para><emphasis>Visit the Yocto Project Web Site:</emphasis>
791 The official
792 <ulink url='&YOCTO_HOME_URL;'>Yocto Project</ulink>
793 web site contains information on the entire project.
794 Visiting this site is a good way to familiarize yourself
795 with the overall project.
796 </para></listitem>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500797 <listitem><para><emphasis>Look Through the Yocto Project Development Manual:</emphasis>
798 The
799 <ulink url='&YOCTO_DOCS_DEV_URL;#dev-manual-intro'>Yocto Project Development Manual</ulink>
800 is a great place to get a feel for how to use the Yocto
801 Project.
802 The manual contains conceptual and procedural information
803 that covers
804 <ulink url='&YOCTO_DOCS_DEV_URL;#dev-manual-model'>common development models</ulink>
805 and introduces
806 <ulink url='&YOCTO_DOCS_DEV_URL;#dev-manual-newbie'>the Yocto Project open source development environment</ulink>.
807 The manual also contains several targeted sections that
808 cover specific
809 <ulink url='&YOCTO_DOCS_DEV_URL;#extendpoky'>common tasks</ulink>
810 such as understanding and creating layers, customizing
811 images, writing new recipes, working with libraries, and
812 configuring and patching the kernel.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500813 </para></listitem>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500814 <listitem><para><emphasis>Look Through the Yocto Project Software Development Kit (SDK) Developer's Guide:</emphasis>
815 The
816 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-intro'>Yocto Project Software Development Kit (SDK) Developer's Guide</ulink>
817 describes how to use both the
818 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-using-the-standard-sdk'>standard SDK</ulink>
819 and the
820 <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>extensible SDK</ulink>,
821 which are used primarily for application development.
822 This manual also provides an example workflow that uses
823 the popular <trademark class='trade'>Eclipse</trademark>
824 development environment.
825 See the
826 "<ulink url='&YOCTO_DOCS_SDK_URL;#workflow-using-eclipse'>Workflow using Eclipseâ„¢</ulink>"
827 section.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500828 </para></listitem>
829 <listitem><para><emphasis>Learn About Board Support Packages (BSPs):</emphasis>
830 If you want to learn about BSPs, see the
831 <ulink url='&YOCTO_DOCS_BSP_URL;#bsp'>Yocto Project Board Support Packages (BSP) Developer's Guide</ulink>.
832 </para></listitem>
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500833 <listitem><para><emphasis>Learn About Toaster:</emphasis>
834 Toaster is a web interface to the Yocto Project's
835 OpenEmbedded build system.
836 If you are interested in using this type of interface to
837 create images, see the
838 <ulink url='&YOCTO_DOCS_TOAST_URL;#toaster-manual-intro'>Toaster User Manual</ulink>.
839 </para></listitem>
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500840 <listitem><para><emphasis>Have Available the Yocto Project Reference Manual</emphasis>
841 The
842 <ulink url='&YOCTO_DOCS_REF_URL;#ref-manual-intro'>Yocto Project Reference Manual</ulink>,
843 unlike the rest of the Yocto Project manual set, is
844 comprised of material suited for reference rather than
845 procedures.
846 You can get
847 <ulink url='&YOCTO_DOCS_REF_URL;#usingpoky'>build details</ulink>,
848 a
849 <ulink url='&YOCTO_DOCS_REF_URL;#closer-look'>closer look</ulink>
850 at how the pieces of the Yocto Project development
851 environment work together, information on various
852 <ulink url='&YOCTO_DOCS_REF_URL;#technical-details'>technical details</ulink>,
853 guidance on
854 <ulink url='&YOCTO_DOCS_REF_URL;#migration'>migrating to a newer Yocto Project release</ulink>,
855 reference material on the
856 <ulink url='&YOCTO_DOCS_REF_URL;#ref-structure'>directory structure</ulink>,
857 <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes'>classes</ulink>,
858 and
859 <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks'>tasks</ulink>.
860 The Yocto Project Reference Manual also contains a fairly
861 comprehensive
862 <ulink url='&YOCTO_DOCS_REF_URL;#ref-variables-glossary'>glossary of variables</ulink>
863 used within the Yocto Project.
Patrick Williamsc124f4f2015-09-15 14:41:29 -0500864 </para></listitem>
865 </itemizedlist>
866 </para>
867 </section>
868</article>
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