diff options
Diffstat (limited to 'documentation/yocto-project-qs/yocto-project-qs.xml')
| -rw-r--r-- | documentation/yocto-project-qs/yocto-project-qs.xml | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/documentation/yocto-project-qs/yocto-project-qs.xml b/documentation/yocto-project-qs/yocto-project-qs.xml new file mode 100644 index 0000000000..d67ff41edc --- /dev/null +++ b/documentation/yocto-project-qs/yocto-project-qs.xml @@ -0,0 +1,307 @@ +<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" +"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<article id='intro'> + <imagedata fileref="figures/yocto-project-transp.png" width="6in" depth="1in" align="right" scale="25" /> + +<section id='fake-title'> + <title>Yocto Project Quick Start</title> +</section> + +<section id='welcome'> + <title>Welcome!</title> + <para> + Welcome to the Yocto Project! + The Yocto Project is an open-source Linux development environment. + This short document will give you some basic information about the environment as well as let you experience it in its simplest form. + After reading this document you will have a basic understanding of what the Yocto Project is and how to work within it. + This document also steps you through a simple example showing you how to build a small image and run it using the QEMU emulator. + </para> + <para> + For complete information on the Yocto Project you should check out the <ulink url='http://www.yoctolinux.org'>Public Yocto Website</ulink>. + You can find the latest builds, breaking news, full development documentation, and a rich Yocto Project Development Community into which you can tap. + </para> +</section> + +<section id='yp-intro'> + <title>Introducing the Yocto Project Development Environment</title> + + <para> + Yocto Project is an open source development environment that creates Linux-based images suitable for many types of devices (large or small) based on architectures such as x86, x86-64, Xeon, ARM, and MIPS as well as PowerPC and device emulation. + You can use Yocto Project to design, develop, build, debug, simulate, and test the complete software stack using Linux, the X Window System, GNOME Mobile-based application frameworks, and Qt frameworks. + </para> + + <para></para> + <para></para> + + <mediaobject> + <imageobject> + <imagedata fileref="figures/yocto-environment.png" format="PNG" align='center' scalefit='1'/> + </imageobject> + <caption> + <para>The Yocto Project Development Environment</para> + </caption> + </mediaobject> + + <para> + Yocto Project: + </para> + + <itemizedlist> + <listitem> + <para>Provides an open source Linux kernel along with a set of system commands and libraries suitable for the embedded environment.</para> + </listitem> + <listitem> + <para>Makes available system components such as X11, Matchbox, GTK+, Pimlico, Clutter, and Qt (among others) so you can create a richer user interface experience on devices that use displays or have a GUI. +For devices that don't have a GUI or display you simply would not employ these components.</para> + </listitem> + <listitem> + <para>Creates a focused and stable subset of OpenEmbedded on which you can easily and reliably build and develop.</para> + </listitem> + <listitem> + <para>Fully supports a wide range of hardware and device emulation through the QEMU Emulator or other supported emulators.</para> + </listitem> + </itemizedlist> + + <para> + Yocto Project generates file system images based on open source software such as the Kdrive X server, the Matchbox Window Manager, the GTK+ Toolkit and the D-Bus Message Bus System. + Yocto Project can generate images for many kinds of devices. + However, the standard example machines target QEMU full system emulation for x86, ARM, MIPS, and PPC based architectures as well as specific hardware such as the Intel Desktop Board DH55TC. + Because an image developed with Yocto Project can boot inside a QEMU emulator, the development environment works nicely as a test platform for developing embedded software. + </para> + + <para> + Another important Yocto Project feature is the Sato component. + The optional Sato component, a GNOME mobile-based user interface environment well suited for devices with restricted screen sizes, sits neatly on top of any device using the GNOME Mobile Stack providing a well defined user experience. + </para> +</section> + +<section id='resources'> + <title>What You Need and How You Get It</title> + + <para> + You need these things to develop in the Yocto Project environment: + </para> + + <itemizedlist> + <listitem> + <para>A host system running a supported Linux distribution. + For information on distributions on which you can use Yocto Project refer to the information found at <ulink url='http://wiki.openembedded.net/index.php/OEandYourDistro'>http://wiki.openembedded.net/index.php/OEandYourDistro</ulink>.</para> + </listitem> + <listitem> + <para>The right packages.</para> + </listitem> + <listitem> + <para>A release of Yocto Project.</para> + </listitem> + </itemizedlist> + + <section id='the-linux-distro'> + <title>The Linux Distribution</title> + + <para> + While this document assumes a Debian-based host system you can develop in the Yocto Linux environment using many other Linux distributions. + For Debian-based systems we recommend you use the Ubuntu Release 10.04 or later. + </para> + </section> + + <section id='packages'> + <title>The Packages</title> + + <para> + The packages you need for a Debian-based host are shown in the following command: + </para> + + <literallayout class='monospaced'> + Sudo apt-get install sed wget cvs subversion git-core coreutils + unzip texi2html texinfo libsdll.2-dev docbook-utils gawk + python-pysqlite2 diffstat help2man make gcc build-essential + g++ desktop-file-utils chrpath libgl1-mesa-dev libglu1-mesa-dev + libsdl1.2-dev + </literallayout> + + <para> + <emphasis>NOTE:</emphasis> Packages vary in number and name for other Linux distributions. + For package requirements on other Linux distributions refer to the information found at <ulink url='http://wiki.openembedded.net/index.php/OEandYourDistro'>http://wiki.openembedded.net/index.php/OEandYourDistro</ulink>. + </para> + </section> + + <section id='releases'> + <title>Yocto Project Release</title> + + <para> + The latest releases for Yocto Project are kept at http://yoctoproject.org/releases. + Nightly and developmental builds are also maintained. However, for this document a released version of Yocto Project is used. + </para> + </section> +</section> + +<section id='test-run'> + <title>A Quick Test Run</title> + + <para> + Now that you have your system requirements in order you can give Yocto Project a try. + This section presents some steps that let you do the following: + </para> + + <itemizedlist> + <listitem> + <para>Build an image and run it in the emulator</para> + </listitem> + <listitem> + <para>Or, use a pre-built image and run it in the emulator</para> + </listitem> + </itemizedlist> + + <section id='building-image'> + <title>Building an Image</title> + + <para> + In the development environment you will need to build an image whenever you change hardware support, add or change system libraries, or add or change services that have dependencies. + </para> + + <mediaobject> + <imageobject> + <imagedata fileref="figures/building-an-image.png" format="PNG" align='center' scalefit='1'/> + </imageobject> + <caption> + <para>Building an Image</para> + </caption> + </mediaobject> + + <para> + Use the following commands from a shell on your Debian-based host to build your image. + The build creates an entire Linux system including the Toolchain from the source. + </para> + + <para><emphasis>NOTE:</emphasis> The build process using Sato currently consumes 50GB of disk space. + To allow for vbariations in the build process and for future package expansion we recommend 100GB of free disk space. + </para> + + <para> + <literallayout class='monospaced'> + $ wget http://pokylinux.org/releases/poky-green-3.3.tar.bz2 + $ tar xjvf poky-green-3.3.tar.bz2 + $ cd green-3.3-build + $ source green-3.3/poky-init-build-env green-3.3-build + $ bitbake qemu-native + $ bitbake poky-image-sato + $ poky-qemu qemux86 + </literallayout> + </para> + + <para> + Here is some explanation for these commands: + </para> + + <itemizedlist> + <listitem> + <para> + The first two commands extract the Yocto Project files from the release area and place them into your build area (green-3.3-build in this example). + </para> + </listitem> + <listitem> + <para> + After changing to the build directory the source command sets up the Yocto Project build environment. + The build directory contains all the object files used during the build. + The default build directory is poky-dir/build. + </para> + </listitem> + <listitem> + <para> + The two bitbake commands build the OS image and the emulator for the target. + Here poky-image-sato is the name of the target. The qemu-native target is the customized QEMU Emulator.</para> + </listitem> + <listitem> + <para> + Finally, the poky-qemu command launches the customized QEMU. + </para> + </listitem> + </itemizedlist> + </section> + + <section id='using-pre-built'> + <title>Using a Pre-Built Linux Kernel for QEMU</title> + <para> + If hardware, libraries and services are stable you can use a pre-built image of the kernel and just run it on the target using the emulator QEMU. + This situation is perfect for developing application software. + </para> + + <para></para> + <para></para> + <para></para> + + <mediaobject> + <imageobject> + <imagedata fileref="figures/using-a-pre-built-image.png" format="PNG" align='center' scalefit='1'/> + </imageobject> + <caption> + <para>Using a Pre-Built Image</para> + </caption> + </mediaobject> + + <para> + For this scenario you need to do three things: + </para> + + <itemizedlist> + <listitem> + <para> + Install the Yocto Project Scripts + </para> + </listitem> + <listitem> + <para> + Download the pre-built kernel that will run on QEMU. + You need to be sure to get the QEMU image that matches your target machine’s architecture (e.g. x86, ARM, etc.). + </para> + </listitem> + <listitem> + <para> + Download and decompress the file image system. + </para> + </listitem> + </itemizedlist> + + <para> + Use this command to install the patched Yocto Project QEMU scripts: + </para> + + <para> + <literallayout class='monospaced'> + $ apt-get install qemu poky-scripts + </literallayout> + </para> + + <para> + You can download the pre-built Linux kernel and the file image system from <ulink url='http://pokylinux.org/releases/blinky-3.0'></ulink>. + The kernel and file image system have the following forms, respectively: + </para> + + <literallayout class='monospaced'> + *zImage*qemu*.bin + poky-image-*-qemu*.ext2.bz2 + </literallayout> + + <para> + You must decompress the file image system using the following command: + </para> + + <literallayout class='monospaced'> + $ bzip2 -d + </literallayout> + + <para> + You can now start the emulator using this command: + </para> + + <literallayout class='monospaced'> + $ poky-qemu <<emphasis>kernel</emphasis>> <<emphasis>image</emphasis>> + </literallayout> + </section> +</section> + +</article> +<!-- +vim: expandtab tw=80 ts=4 +--> |