Hey Yocto, Build Me a Custom Embedded Linux! Er, No
summary
Shows how Yocto plus BitBake actually builds a full custom embedded Linux: downloads ~8 GB, compiles for ~3–4 hours using a powerful build host and eats ~77 GB, produces bootloader, kernel (example 6.18.24), DTB, toolchain and rootfs images (built from core-image-base), and boots under QEMU aarch64. Demonstrates layer/repo layout, writing a layer and a .bb recipe (hello-world) and adding packages like dropbear, inspects outputs under tmp/deploy, and uses bitbake and layers and recipes to verify and debug the build.
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chapters (16)
- 0:00Introduction
- 1:27What is Yocto and why use it
- 6:47Core components of Yocto Linux
- 9:58How Yocto builds packages and images
- 13:56Yocto layers and organization
- 17:09Old vs new Yocto distros
- 21:06Setting up Yocto build env
- 23:15Building minimal Yocto image
- 26:33Testing Yocto image in QEMU
- 28:22Customizing the build
- 30:48Writing Yocto recipes
- 32:38Debugging Yocto recipes
- 36:59Adding Dropbear to image
- 38:53Debugging Yocto builds
- 40:18Distro, image, and machine
- 41:25Conclusion
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