The launch of our new Buildroot Labs
Buildroot Lab

The launch of our new Buildroot Labs


?? What We've Created: Our Buildroot Labs allow users to build and customize their own Linux kernel. The best part? You can emulate it on target architectures like ARM, all without needing the actual hardware. This is made possible through the integration of QEMU, a powerful emulator that brings hardware experiences to your screen.

VS Code in a Web Browser Featuring a Preconfigured Buildroot Environment Running in a Docker Container


?? No Installation Hassles: Everything is accessible over the web, specifically through VS Code Web. This means you can dive into kernel development without the burden of installations and setups. It's all about learning and experimenting right from your browser.

?? Educational Outreach: We're not stopping at providing a platform; we're leveraging it to educate. Our plan is to use this platform to teach Buildroot to companies, enhancing their teams' skills and understanding of Linux systems.

?? The Future Vision: But wait, there's more! We're not just stopping at Linux kernels. Our vision for this platform extends to creating labs for developing a RISC-V based processor. Imagine being able to delve into the realms of RTL (Register Transfer Level), operating systems, drivers, and even the physical layout GDS-II. This isn't just about learning; it's about creating and innovating.

Guide to Creating and Emulating a Bootable Image for Raspberry Pi 3 Using Buildroot's Standard Recipe

  • List out all the board support packages and then use grep to filter for those matching the pattern "raspberry"

make list-defconfigs | grep raspberry        
Available Buildroot Board Variants for Raspberry Pi

  • I've selected raspberrypi3_64_defconfig as my target configuration to build the image.

make raspberrypi3_64_defconfig && make -j8        

  • Build is done!

Once the kernel image is successfully created, we obtain the following outputs: the kernel's Image, the root file systems, and the Device Tree Blob (DTB).

  • Next, we'll take the output image and proceed to test it on our emulated Raspberry Pi setup using QEMU.
  • QEMU requires the SD card image size to be a power of 2. For this purpose, I'll opt for an 8GB image.

qemu-img resize output/images/sdcard.img 8G        

  • To start the QEMU

qemu-system-aarch64 -machine raspi3b -cpu cortex-a72 -nographic -dtb output/images/bcm2710-rpi-3-b-plus.dtb -m 1G -smp 4 -kernel output/images/Image -sd output/images/sdcard.img -append "rw earlyprintk loglevel=8 console=ttyAMA0,115200 dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootdelay=1"        
Boom! QEMU is up and running, and I can now view the boot logs
We can now access the shell and log in as the root user


I hope you found this article informative. If you have any suggestions or questions, please feel free to leave a comment. Thank you!

#buildroot #linux #kernel #kernel_labs #selfmadeninja #electrolance

nour oudenani

Network Engineer | Developer & Designer | Social Media Manager | Mental Health Advocate

7 个月

In this Office Hours session, DevHeads' embedded Linux experts will take us into fundamental concepts that form the backbone of Yocto, Poky, and OpenEmbedded. Understanding these differences is crucial for navigating the world of embedded systems development effectively. ???????? ???? ??????????? Yocto is not just a single entity but rather a collection of tools and metadata used to create custom Linux-based systems for embedded devices. ?????? ???????? ???? ????????: Poky serves as a starting point for building custom embedded Linux distributions using Yocto tools and methodologies. ?????????????????????????? ????????????????????????: OpenEmbedded is the upstream build system for the Yocto Project. It is a powerful and flexible framework for building custom Linux distributions for embedded systems. ?????? ??????????????????????: Scope and Flexibility Level of Abstraction Community and Ecosystem Mark your calendars: Aug 23, 2024, at 3:00 PM GMT Register for free now: https://cutt.ly/Web6w6UL

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Umar Farooq

Backend Engineer | Tech Enthusiast

1 年

This is cool..

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Kumar Munusamy

Complex Hardware Design| Passionate Maker | Hands- on

1 年

This is very interesting

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