OS Development Course
Gain expertise in low-level x86 operating system development by constructing a compact kernel from bootloader to console I/O. Explore protected mode activation, GDT setup, paging mechanisms, linker scripts, C-Assembly integration, and QEMU debugging to deeply comprehend OS boot processes and execution fundamentals. This hands-on course equips you with practical skills for kernel programming and system-level troubleshooting.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
This course teaches building a basic x86 kernel from ground up, including protected mode, GDT, paging, stack setup, mixing assembly with C, linker scripts, GRUB or custom bootloaders, console I/O, serial logging, QEMU testing, and debugging techniques for effective OS development.
Elevify advantages
Develop skills
- Develop bootloader skills: create custom 512-byte sectors and smooth GRUB handoff.
- Master minimal kernel building: configure GDT, stack, paging, and secure memory layout quickly.
- Build kernel I/O capabilities: implement printk, VGA text mode, and serial logging for debugging.
- Integrate Assembly and C code: handle kernel entry points, linker scripts, and stack management.
- Test kernels using emulators: leverage QEMU, GDB, and scripts for rapid iteration and feedback.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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