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| 1 | <html> | ||
| 2 | <head> | ||
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> | ||
| 4 | <title>Chapter 8. Images</title> | ||
| 5 | <link rel="stylesheet" type="text/css" href="../book.css"> | ||
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> | ||
| 7 | <link rel="home" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 8 | <link rel="up" href="index.html" title="The Yocto Project Reference Manual"> | ||
| 9 | <link rel="prev" href="ref-classes-others.html" title="7.21. Other Classes"> | ||
| 10 | <link rel="next" href="ref-features.html" title="Chapter 9. Reference: Features"> | ||
| 11 | </head> | ||
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Chapter 8. Images"> | ||
| 13 | <div class="titlepage"><div><div><h2 class="title"> | ||
| 14 | <a name="ref-images"></a>Chapter 8. Images</h2></div></div></div> | ||
| 15 | <p> | ||
| 16 | The OpenEmbedded build process supports several types of images to satisfy different needs. | ||
| 17 | When you issue the <code class="filename">bitbake</code> command you provide a “top-level” recipe | ||
| 18 | that essentially begins the build for the type of image you want. | ||
| 19 | </p> | ||
| 20 | <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 21 | <h3 class="title">Note</h3> | ||
| 22 | Building an image without GNU General Public License Version 3 (GPLv3) components | ||
| 23 | is only supported for minimal and base images. | ||
| 24 | Furthermore, if you are going to build an image using non-GPLv3 components, | ||
| 25 | you must make the following changes in the <code class="filename">local.conf</code> file | ||
| 26 | before using the BitBake command to build the minimal or base image: | ||
| 27 | <pre class="literallayout"> | ||
| 28 | 1. Comment out the EXTRA_IMAGE_FEATURES line | ||
| 29 | 2. Set INCOMPATIBLE_LICENSE = "GPLv3" | ||
| 30 | </pre> | ||
| 31 | </div> | ||
| 32 | <p> | ||
| 33 | From within the <code class="filename">poky</code> Git repository, use the following command to list | ||
| 34 | the supported images: | ||
| 35 | </p> | ||
| 36 | <pre class="literallayout"> | ||
| 37 | $ ls meta*/recipes*/images/*.bb | ||
| 38 | </pre> | ||
| 39 | <p> | ||
| 40 | These recipes reside in the <code class="filename">meta/recipes-core/images</code>, | ||
| 41 | <code class="filename">meta/recipes-extended/images</code>, | ||
| 42 | <code class="filename">meta/recipes-graphics/images</code>, and | ||
| 43 | <code class="filename">meta/recipes-sato/images</code> directories | ||
| 44 | within the <a class="link" href="../dev-manual/source-directory.html" target="_self">source directory</a>. | ||
| 45 | Although the recipe names are somewhat explanatory, here is a list that describes them: | ||
| 46 | </p> | ||
| 47 | <div class="itemizedlist"><ul class="itemizedlist" type="disc"> | ||
| 48 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-base</code>:</em></span> | ||
| 49 | A console-only image that fully supports the target device hardware.</p></li> | ||
| 50 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal</code>:</em></span> | ||
| 51 | A small image just capable of allowing a device to boot.</p></li> | ||
| 52 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-dev</code>:</em></span> | ||
| 53 | A <code class="filename">core-image-minimal</code> image suitable for development work | ||
| 54 | using the host. | ||
| 55 | The image includes headers and libraries you can use in a host development | ||
| 56 | environment. | ||
| 57 | </p></li> | ||
| 58 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-initramfs</code>:</em></span> | ||
| 59 | A <code class="filename">core-image-minimal</code> image that has the Minimal RAM-based | ||
| 60 | Initial Root Filesystem (<code class="filename">initramfs</code>) as part of the kernel, | ||
| 61 | which allows the system to find the first “init” program more efficiently. | ||
| 62 | </p></li> | ||
| 63 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-minimal-mtdutils</code>:</em></span> | ||
| 64 | A <code class="filename">core-image-minimal</code> image that has support | ||
| 65 | for the Minimal MTD Utilities, which let the user interact with the | ||
| 66 | MTD subsystem in the kernel to perform operations on flash devices. | ||
| 67 | </p></li> | ||
| 68 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-x11</code>:</em></span> | ||
| 69 | A very basic X11 image with a terminal. | ||
| 70 | </p></li> | ||
| 71 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-basic</code>:</em></span> | ||
| 72 | A console-only image with more full-featured Linux system | ||
| 73 | functionality installed.</p></li> | ||
| 74 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb</code>:</em></span> | ||
| 75 | An image that conforms to the Linux Standard Base (LSB) specification.</p></li> | ||
| 76 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb-dev</code>:</em></span> | ||
| 77 | A <code class="filename">core-image-lsb</code> image that is suitable for development work | ||
| 78 | using the host. | ||
| 79 | The image includes headers and libraries you can use in a host development | ||
| 80 | environment. | ||
| 81 | </p></li> | ||
| 82 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-lsb-sdk</code>:</em></span> | ||
| 83 | A <code class="filename">core-image-lsb</code> that includes everything in meta-toolchain | ||
| 84 | but also includes development headers and libraries to form a complete standalone SDK. | ||
| 85 | This image is suitable for development using the target.</p></li> | ||
| 86 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-clutter</code>:</em></span> | ||
| 87 | An image with support for the Open GL-based toolkit Clutter, which enables development of | ||
| 88 | rich and animated graphical user interfaces.</p></li> | ||
| 89 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato</code>:</em></span> | ||
| 90 | An image with Sato support, a mobile environment and visual style that works well | ||
| 91 | with mobile devices. | ||
| 92 | The image supports X11 with a Sato theme and applications such as | ||
| 93 | a terminal, editor, file manager, media player, and so forth.</p></li> | ||
| 94 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato-dev</code>:</em></span> | ||
| 95 | A <code class="filename">core-image-sato</code> image suitable for development | ||
| 96 | using the host. | ||
| 97 | The image includes libraries needed to build applications on the device itself, | ||
| 98 | testing and profiling tools, and debug symbols. | ||
| 99 | This image was formerly <code class="filename">core-image-sdk</code>.</p></li> | ||
| 100 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-sato-sdk</code>:</em></span> | ||
| 101 | A <code class="filename">core-image-sato</code> image that includes everything in meta-toolchain. | ||
| 102 | The image also includes development headers and libraries to form a complete standalone SDK | ||
| 103 | and is suitable for development using the target.</p></li> | ||
| 104 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-rt</code>:</em></span> | ||
| 105 | A <code class="filename">core-image-minimal</code> image plus a real-time test suite and | ||
| 106 | tools appropriate for real-time use.</p></li> | ||
| 107 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-rt-sdk</code>:</em></span> | ||
| 108 | A <code class="filename">core-image-rt</code> image that includes everything in | ||
| 109 | <code class="filename">meta-toolchain</code>. | ||
| 110 | The image also includes development headers and libraries to form a complete | ||
| 111 | stand-alone SDK and is suitable for development using the target.</p></li> | ||
| 112 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">core-image-gtk-directfb</code>:</em></span> | ||
| 113 | An image that uses <code class="filename">gtk+</code> over <code class="filename">directfb</code> | ||
| 114 | instead of X11. | ||
| 115 | In order to build, this image requires specific distro configuration that enables | ||
| 116 | <code class="filename">gtk</code> over <code class="filename">directfb</code>.</p></li> | ||
| 117 | <li class="listitem"><p><span class="emphasis"><em><code class="filename">build-appliance-image</code>:</em></span> | ||
| 118 | An image you can boot and run using either the | ||
| 119 | <a class="ulink" href="http://www.vmware.com/products/player/overview.html" target="_self">VMware Player</a> | ||
| 120 | or <a class="ulink" href="http://www.vmware.com/products/workstation/overview.html" target="_self">VMware Workstation</a>. | ||
| 121 | For more information on this image, see the | ||
| 122 | <a class="ulink" href="http://www.yoctoproject.org/documentation/build-appliance" target="_self">Build Appliance</a> page on | ||
| 123 | the Yocto Project website.</p></li> | ||
| 124 | </ul></div> | ||
| 125 | <div class="tip" title="Tip" style="margin-left: 0.5in; margin-right: 0.5in;"> | ||
| 126 | <h3 class="title">Tip</h3> | ||
| 127 | From the Yocto Project release 1.1 onwards, <code class="filename">-live</code> and | ||
| 128 | <code class="filename">-directdisk</code> images have been replaced by a "live" | ||
| 129 | option in <code class="filename">IMAGE_FSTYPES</code> that will work with any image to produce an | ||
| 130 | image file that can be | ||
| 131 | copied directly to a CD or USB device and run as is. | ||
| 132 | To build a live image, simply add | ||
| 133 | "live" to <code class="filename">IMAGE_FSTYPES</code> within the <code class="filename">local.conf</code> | ||
| 134 | file or wherever appropriate and then build the desired image as normal. | ||
| 135 | </div> | ||
| 136 | </div></body> | ||
| 137 | </html> | ||