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Copyright © 2010-2018 Linux Foundation
- Permission is granted to copy, distribute and/or modify this document under - the terms of the Creative Commons Attribution-Share Alike 2.0 UK: England & Wales as published by Creative Commons. -
- For the latest version of this document associated with - this Yocto Project release - (version 2.5), see the "My First - Yocto Project Build" from the - Yocto Project documentation page. -
- This version of the manual is version - 2.5. - For later releases of the Yocto Project (if they exist), - go to the - Yocto Project documentation page - and use the drop-down "Active Releases" button - and choose the Yocto Project version for which you want - the manual. -
- Welcome! - This short document steps you through the process for a typical - image build using the Yocto Project. - The build uses Poky, which is the reference embedded OS that is - completely specified. -
-
- If you want more conceptual or background information on the - Yocto Project, see the - Getting Started With Yocto Project Manual. -
- Make sure your build system meets the following requirements: -
- 50 Gbytes of free disk space -
- Runs a supported Linux distribution (i.e. recent releases of - Fedora, openSUSE, CentOS, Debian, or Ubuntu). For a list of - Linux distributions that support the Yocto Project, see the - "Supported Linux Distributions" - section in the Yocto Project Reference Manual. -
-
- Git 1.8.3.1 or greater -
- tar 1.27 or greater -
- Python 3.4.0 or greater. -
- If your build host does not meet any of these three listed - version requirements, you can take steps to prepare the - system so that you can still use the Yocto Project. - See the - "Required Git, tar, and Python Versions" - section in the Yocto Project Reference Manual for information. -
-
- You must install essential host packages on your - development host. - The following command installs the host packages based on an - Ubuntu distribution: -
-
- $ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \ - build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \ - xz-utils debianutils iputils-ping libsdl1.2-dev xterm -
-
- Once you complete the setup instructions for your machine, - you need to get a copy of the Poky repository on your build - system. - Use the following commands to clone the Poky - repository and then checkout the yocto-2.5 release: -
- $ git clone git://git.yoctoproject.org/poky - Cloning into 'poky'... - remote: Counting objects: 361782, done. - remote: Compressing objects: 100% (87100/87100), done. - remote: Total 361782 (delta 268619), reused 361439 (delta 268277) - Receiving objects: 100% (361782/361782), 131.94 MiB | 6.88 MiB/s, done. - Resolving deltas: 100% (268619/268619), done. - Checking connectivity... done. - $ git checkout tags/yocto-2.5 -b my-yocto-2.5 -
- The previous Git checkout command creates a local branch - named my-yocto-2.5. The files available to you in that - branch exactly match the repository's files in the - "sumo" development branch at the time of the - Yocto Project 2.5 release. -
- For more options and information about accessing Yocto - Project related repositories, see the - "Working With Yocto Project Source Files" - section in the Yocto Project Development Tasks Manual. -
- Use the following steps to build your image. - The OpenEmbedded build system creates an entire Linux - distribution, including the toolchain, from source. -
- If you are working behind a firewall and your build - host is not set up for proxies, you could encounter - problems with the build process when fetching source - code (e.g. fetcher failures or Git failures). -
- If you do not know your proxy settings, consult your - local network infrastructure resources and get that - information. - A good starting point could also be to check your - web browser settings. - Finally, you can find more information on the - "Working Behind a Network Proxy" - wiki page. -
-
-
- Initialize the Build Environment:
- Run the
- oe-init-build-env
- environment setup script to define the OpenEmbedded
- build environment on your build host.
-
- $ source oe-init-build-env -
- Among other things, the script creates the
- Build Directory,
- which is build in this case
- and is located in the
- Source Directory.
- After the script runs, your current working directory
- is set to the Build Directory.
- Later, when the build completes, the Build Directory
- contains all the files created during the build.
-
- Examine Your Local Configuration File:
- When you set up the build environment, a local
- configuration file named
- local.conf becomes available in
- a conf subdirectory of the
- Build Directory.
- For this quick start, the defaults are set to build
- for a qemux86 target, which is
- suitable for emulation.
- The package manager used is set to the RPM package
- manager.
-
- Start the Build:
- Continue with the following command to build an OS image
- for the target, which is
- core-image-sato in this example:
-
- $ bitbake core-image-sato -
- For information on using the
- bitbake command, see the
- "BitBake"
- section in the Yocto Project Overview Manual, or
- see the
- "BitBake Command"
- section in the BitBake User Manual.
-
- Simulate Your Image Using QEMU: - Once this particular image is built, you can start - QEMU, which is a Quick EMUlator that ships with - the Yocto Project: -
- $ runqemu qemux86 -
- If you want to learn more about running QEMU, see the - "Using the Quick EMUlator (QEMU)" - chapter in the Yocto Project Development Tasks Manual. -
- Exit QEMU:
- Exit QEMU by either clicking on the shutdown icon or by
- typing Ctrl-C in the QEMU
- transcript window from which you evoked QEMU.
-
-
- Now that you have experienced using the Yocto Project, you might - be asking yourself "What now?" - The Yocto Project has many sources of information including - the website, wiki pages, and user manuals: -
- Website: - The - Yocto Project Website - provides background information, the latest builds, - breaking news, full development documentation, and - access to a rich Yocto Project Development Community - into which you can tap. -
- Developer Screencast: - The - Getting Started with the Yocto Project - New Developer Screencast Tutorial - provides a 30-minute video created for users unfamiliar - with the Yocto Project but familiar with Linux build - hosts. - While this screencast is somewhat dated, the - introductory and fundamental concepts are useful for - the beginner. -
- Yocto Project Wiki: - The - Yocto Project Wiki - provides additional information on where to go next - when ramping up with the Yocto Project, release - information, project planning, and QA information. -
- Yocto Project Mailing Lists: - Related mailing lists provide a forum for discussion, - patch submission and announcements. - Several mailing lists exist and are grouped according - to areas of concern. - See the - "Mailing lists" - section in the Yocto Project Reference Manual for a - complete list of Yocto Project mailing lists. -
- Comprehensive List of Links and Other Documentation: - The - "Links and Related Documentation" - section in the Yocto Project Reference Manual provides a - comprehensive list of all related links and other - user documentation. -
-