Yocto Tutorial - 26 Kernel Configuration | Menuconfig
This guide demonstrates how to use menuconfig to customize the Linux kernel in Yocto. Remember that the specific kernel options you need to configure depend on your project's requirements.
Set Up Your Yocto Environment:
Before you begin, make sure you have Yocto set up and a working project directory. If you don't have one, follow the Yocto Project Quick Start Guide to set it up.
Launch menuconfig:
Open a terminal and navigate to your Yocto project directory. Use the following command to launch menuconfig:
bitbake -c menuconfig virtual/kernel
This command tells Yocto to run menuconfig for the virtual/kernel recipe.
Configure Kernel Options:
menuconfig will open an interactive menu-based interface. Use arrow keys, Enter, and Esc to navigate and interact.
Browse through different categories to find and configure kernel options.
Select options with "Y" (for Yes), "N" (for No), or "M" (for Module).
Use "?" to get help for a specific configuration option.
Save Configuration:
Once you've made your desired changes, save the configuration.
Exit menuconfig.
Build the Image:
After saving your configuration, you need to rebuild the image to apply your changes. Use the following command:
bitbake core-image-full-cmdline
Yocto will rebuild the Image with your custom configuration.
Deploy the Updated Image:
After the build is complete, you can install the updated Image
Test Your Custom Kernel:
Deploy the updated kernel image to your embedded device or emulator, and test it to ensure your custom kernel configuration works as expected.