Build an OS Kernel
Build an educational kernel like xv6: boot in QEMU, set up paging + virtual memory, implement processes/threads, schedule with round-robin/MLFQ/CFS, dispatch system calls, handle interrupts, build a simple file system, and explore the gap between toy and Linux.
advanced24 lessons4 chapters24 graded exercisesPython
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What you’ll have built
Chapter by chapter. Every step is a graded exercise.
- Boot & Memory
- Processes & Scheduling
- System Calls & I/O
- File Systems & Beyond
Starts in Python — solve in the language you choose in the editor, same tests either way.
Curriculum
4 chapters, 24 lessons. Each lesson is a short read, one graded exercise, and a quiz.
- 1What an OS Kernel DoesRead · exercise · quiz
- 2Boot ProcessRead · exercise · quiz
- 3The VGA Text ConsoleRead · exercise · quiz
- 4Virtual Memory & PagingRead · exercise · quiz
- 5GDT, IDT & Mode SwitchingRead · exercise · quiz
- 6The Physical Frame AllocatorRead · exercise · quiz
- 7Kernel Heap AllocatorsRead · exercise · quiz
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