summaryrefslogtreecommitdiffstats
path: root/documentation/ref-manual/ref-images.xml
blob: cc70f894330e6eed683d9ee6fabdfa3a7b531372 (plain)
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
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >

<chapter id='ref-images'>
    <title>Images</title>

    <para>
        The OpenEmbedded build system provides several example
        images to satisfy different needs.
        When you issue the <filename>bitbake</filename> command you provide a “top-level” recipe
        that essentially begins the build for the type of image you want.
    </para>

    <note>
        Building an image without GNU General Public License Version 3 (GPLv3),
        GNU Lesser General Public License Version 3 (LGPLv3), and the
        GNU Affero General Public License Version 3 (AGPL-3.0) components
        is only supported for minimal and base images.
        Furthermore, if you are going to build an image using non-GPLv3 and
        similarly licensed components, you must make the following changes in
        the <filename>local.conf</filename> file before using the BitBake
        command to build the minimal or base image:
        <literallayout class='monospaced'>
     1. Comment out the EXTRA_IMAGE_FEATURES line
     2. Set INCOMPATIBLE_LICENSE = "GPL-3.0 LGPL-3.0 AGPL-3.0"
        </literallayout>
    </note>

    <para>
        From within the <filename>poky</filename> Git repository, use the following command to list
        the supported images:
        <literallayout class='monospaced'>
     $ ls meta*/recipes*/images/*.bb
        </literallayout>
        These recipes reside in the <filename>meta/recipes-core/images</filename>,
        <filename>meta/recipes-extended/images</filename>,
        <filename>meta/recipes-graphics/images</filename>,
        <filename>meta/recipes-qt/images</filename>,
        <filename>meta/recipes-rt/images</filename>,
        <filename>meta/recipes-sato/images</filename>, and
        <filename>meta-skeleton/recipes-multilib/images</filename> directories
        within the <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>.
        Although the recipe names are somewhat explanatory, here is a list that describes them:
    </para>

    <itemizedlist>
        <listitem><para><emphasis><filename>build-appliance-image</filename>:</emphasis>
            An example virtual machine that contains all the pieces required to
            run builds using the build system as well as the build system itself.
            You can boot and run the image using either the
            <ulink url='http://www.vmware.com/products/player/overview.html'>VMware Player</ulink>
            or <ulink url='http://www.vmware.com/products/workstation/overview.html'>VMware Workstation</ulink>.
            For more information on this image, see the
            <ulink url='&YOCTO_HOME_URL;/documentation/build-appliance'>Build Appliance</ulink> page on
            the Yocto Project website.</para></listitem>
        <listitem><para><emphasis><filename>core-image-base</filename>:</emphasis>
            A console-only image that fully supports the target device hardware.</para></listitem>
        <listitem><para><emphasis><filename>core-image-minimal</filename>:</emphasis>
            A small image just capable of allowing a device to boot.</para></listitem>
        <listitem><para><emphasis><filename>core-image-minimal-dev</filename>:</emphasis>
            A <filename>core-image-minimal</filename> image suitable for development work
            using the host.
            The image includes headers and libraries you can use in a host development
            environment.
            </para></listitem>
        <listitem><para id='images-core-image-minimal-initramfs'><emphasis><filename>core-image-minimal-initramfs</filename>:</emphasis>
            A <filename>core-image-minimal</filename> image that has the Minimal RAM-based
            Initial Root Filesystem (initramfs) as part of the kernel,
            which allows the system to find the first “init” program more efficiently.
            See the
            <link linkend='var-PACKAGE_INSTALL'><filename>PACKAGE_INSTALL</filename></link>
            variable for additional information helpful when working with
            initramfs images.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-minimal-mtdutils</filename>:</emphasis>
            A <filename>core-image-minimal</filename> image that has support
            for the Minimal MTD Utilities, which let the user interact with the
            MTD subsystem in the kernel to perform operations on flash devices.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-full-cmdline</filename>:</emphasis>
            A console-only image with more full-featured Linux system
            functionality installed.</para></listitem>
        <listitem><para><emphasis><filename>core-image-lsb</filename>:</emphasis>
            An image that conforms to the Linux Standard Base (LSB)
            specification.
            This image requires a distribution configuration that
            enables LSB compliance (e.g. <filename>poky-lsb</filename>).
            If you build <filename>core-image-lsb</filename> without that
            configuration, the image will not be LSB-compliant.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-lsb-dev</filename>:</emphasis>
            A <filename>core-image-lsb</filename> image that is suitable for development work
            using the host.
            The image includes headers and libraries you can use in a host development
            environment.
            This image requires a distribution configuration that
            enables LSB compliance (e.g. <filename>poky-lsb</filename>).
            If you build <filename>core-image-lsb-dev</filename> without that
            configuration, the image will not be LSB-compliant.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-lsb-sdk</filename>:</emphasis>
            A <filename>core-image-lsb</filename> that includes everything in
            meta-toolchain but also includes development headers and libraries
            to form a complete standalone SDK.
            This image requires a distribution configuration that
            enables LSB compliance (e.g. <filename>poky-lsb</filename>).
            If you build <filename>core-image-lsb-sdk</filename> without that
            configuration, the image will not be LSB-compliant.
            This image is suitable for development using the target.</para></listitem>
        <listitem><para><emphasis><filename>core-image-testmaster</filename>:</emphasis>
            A "master" image designed to be used for automated runtime testing.
            Provides a "known good" image that is deployed to a separate
            partition so that you can boot into it and use it to deploy a
            second image to be tested.
            You can find more information about runtime testing in the
            "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
            section in the Yocto Project Development Manual.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-clutter</filename>:</emphasis>
            An image with support for the Open GL-based toolkit Clutter, which enables development of
            rich and animated graphical user interfaces.</para></listitem>
        <listitem><para><emphasis><filename>core-image-directfb</filename>:</emphasis>
            An image that uses <filename>directfb</filename> instead of X11.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-x11</filename>:</emphasis>
            A very basic X11 image with a terminal.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-weston</filename>:</emphasis>
            A very basic Wayland image with a terminal.
            This image provides the Wayland protocol libraries and the
            reference Weston compositor.
            For more information, see the
            "<link linkend='wayland'>Wayland</link>" section.
            </para></listitem>
        <listitem><para><emphasis><filename>qt4e-demo-image</filename>:</emphasis>
            An image that launches into the demo application for the embedded
            (not based on X11) version of Qt.</para></listitem>
        <listitem><para><emphasis><filename>core-image-rt</filename>:</emphasis>
            A <filename>core-image-minimal</filename> image plus a real-time test suite and
            tools appropriate for real-time use.</para></listitem>
        <listitem><para><emphasis><filename>core-image-rt-sdk</filename>:</emphasis>
            A <filename>core-image-rt</filename> image that includes everything in
            <filename>meta-toolchain</filename>.
            The image also includes development headers and libraries to form a complete
            stand-alone SDK and is suitable for development using the target.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-sato</filename>:</emphasis>
            An image with Sato support, a mobile environment and visual style that works well
            with mobile devices.
            The image supports X11 with a Sato theme and applications such as
            a terminal, editor, file manager, media player, and so forth.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-sato-dev</filename>:</emphasis>
            A <filename>core-image-sato</filename> image suitable for development
            using the host.
            The image includes libraries needed to build applications on the device itself,
            testing and profiling tools, and debug symbols.
            This image was formerly <filename>core-image-sdk</filename>.
            </para></listitem>
        <listitem><para><emphasis><filename>core-image-sato-sdk</filename>:</emphasis>
            A <filename>core-image-sato</filename> image that includes everything in meta-toolchain.
            The image also includes development headers and libraries to form a complete standalone SDK
            and is suitable for development using the target.</para></listitem>
    </itemizedlist>
</chapter>
<!--
vim: expandtab tw=80 ts=4
-->