Learning Embedded Linux

Glossary

• U-Boot: bootloader
• yocto: build system (complex)
• buildroot: build system (flexible)

Links and Resources:

• Youtube Playlist
• U-Boot Wiki
• Xilinx Wiki
• Buildroot
• crosstool-NG
• Bootlin Links and Resources
  • Introductory Presentation on Embedded Linux
  • Full Training Materials on Embedded Linux
• Useful Reddit Post

Books

• OSTEP
• Linux Kernel In a Nutshell
• Linux System Programming
• Linux Kernel Development

U-Boot

Get u-boot source

git clone git://git.denx.de/u-boot.git
cd u-boot
git checkout v2025.04

Build and run QEMU

export CROSS_COMPILE=arm-linux-gnueabi-
export ARCH=arm
make qemu_arm_defconfig
make
qemu-system-arm -M virt -nographic -no-reboot -bios u-boot.bin