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Embedded Linux Development with Yocto Project

You're reading from  Embedded Linux Development with Yocto Project

Product type Book
Published in Jul 2014
Publisher
ISBN-13 9781783282333
Pages 142 pages
Edition 1st Edition
Languages

Table of Contents (22) Chapters

Embedded Linux Development with Yocto Project
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Meeting the Yocto Project 2. Baking Our Poky-based System 3. Using Hob to Bake an Image 4. Grasping the BitBake Tool 5. Detailing the Temporary Build Directory 6. Assimilating Packaging Support 7. Diving into BitBake Metadata 8. Developing with the Yocto Project 9. Debugging with the Yocto Project 10. Exploring External Layers 11. Creating Custom Layers 12. Customizing Existing Recipes 13. Achieving GPL Compliance 14. Booting Our Custom Embedded Linux References
Index

Building an image using Hob


Our first step is to set up our build environment, as follows:

$: source poky/oe-init-build-env [build-directory]

We can choose an old build directory or create a new one.

Now, Hob is ready for use. To start it, we should run the following:

$: hob

At startup, Hob performs some parsing tasks, reading the local configuration and available metadata layers. After a short time, Hob proposes a list of available machines. We can select, for example, qemuarm.

Once the dependency tree is built, select the desired image, for example, core-image-full-cmdline.

The following screenshot shows the MACHINE variable content and the image to be built in the Hob interface:

With the target MACHINE and image selected, the next step is to choose some advanced configuration, such as image types (for example, cpio.gz, ext2.bz2, ext3.gz, jffs2, ubifs, and vmdk) or package formats (rpm, deb, IPK, or TAR). We can also exclude all packages under the GPLv3 licensing, as shown in Chapter 13,...

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