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+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>2.1.1. Build Overview</title>
+<link rel="stylesheet" type="text/css" href="../book.css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
+<link rel="home" href="index.html" title="The Yocto Project Reference Manual">
+<link rel="up" href="usingpoky-build.html" title="2.1. Running a Build">
+<link rel="prev" href="usingpoky-build.html" title="2.1. Running a Build">
+<link rel="next" href="building-an-image-using-gpl-components.html" title="2.1.2. Building an Image Using GPL Components">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.1.1. Build Overview">
+<div class="titlepage"><div><div><h3 class="title">
+<a name="build-overview"></a>2.1.1. Build Overview</h3></div></div></div>
+<p>
+ The first thing you need to do is set up the OpenEmbedded build environment by sourcing
+ the <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">environment setup script</a> as follows:
+ </p>
+<pre class="literallayout">
+ $ source oe-init-build-env [build_dir]
+ </pre>
+<p>
+ </p>
+<p>
+ The <code class="filename">build_dir</code> is optional and specifies the directory the
+ OpenEmbedded build system uses for the build -
+ the <a class="link" href="../dev-manual/build-directory.html" target="_self">Build Directory</a>.
+ If you do not specify a Build Directory it defaults to <code class="filename">build</code>
+ in your current working directory.
+ A common practice is to use a different Build Directory for different targets.
+ For example, <code class="filename">~/build/x86</code> for a <code class="filename">qemux86</code>
+ target, and <code class="filename">~/build/arm</code> for a <code class="filename">qemuarm</code> target.
+ See <a class="link" href="structure-core-script.html" title="5.1.10. oe-init-build-env">oe-init-build-env</a>
+ for more information on this script.
+ </p>
+<p>
+ Once the build environment is set up, you can build a target using:
+ </p>
+<pre class="literallayout">
+ $ bitbake &lt;target&gt;
+ </pre>
+<p>
+ </p>
+<p>
+ The <code class="filename">target</code> is the name of the recipe you want to build.
+ Common targets are the images in <code class="filename">meta/recipes-core/images</code>,
+ <code class="filename">/meta/recipes-sato/images</code>, etc. all found in the
+ <a class="link" href="../dev-manual/source-directory.html" target="_self">Source Directory</a>.
+ Or, the target can be the name of a recipe for a specific piece of software such as
+ <span class="application">busybox</span>.
+ For more details about the images the OpenEmbedded build system supports, see the
+ "<a class="link" href="ref-images.html" title="Chapter 8. Images">Images</a>" chapter.
+ </p>
+<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
+<h3 class="title">Note</h3>
+ Building an image without GNU General Public License Version 3 (GPLv3) components
+ is only supported for minimal and base images.
+ See the "<a class="link" href="ref-images.html" title="Chapter 8. Images">Images</a>" chapter for more information.
+ </div>
+</div></body>
+</html>