A note of caution: Be careful of spending too much time doing the easy work of looking for “resources”, rather than the hard work of consistent practice. Have fun 🙂

Top Recommendations

• https://pwn.college — Arizona State University – Security, systems course
• https://cs61.seas.harvard.edu/site/2024 – Harvard CS61

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Textbooks

• https://diveintosystems.org/ — Dive into Systems (Similar to OSTEP, but more modern?)
• https://pages.cs.wisc.edu/~remzi/OSTEP/ — Operating Systems: Three Easy Pieces
• https://pdos.csail.mit.edu/6.828/2018/xv6/book-rev11.pdf — xv6 OS Book (2018), x86
• https://os-book.com/ — Operating Systems Concepts
• https://www.pearson.de/modern-operating-systems-global-edition-9781292727899 — Modern Operating Systems

Websites

• https://littleosbook.github.io/ — The little book about OS development
• https://os.phil-opp.com/ — Writing an OS in Rust 
• https://wiki.osdev.org — Classic OSdev wiki, best for specific tutorials
• http://www.osdever.net/tutorials/
• https://github.com/dreamportdev/Osdev-Notes

University Course Materials

• https://pdos.csail.mit.edu/6.828/2018/ — MIT 6.828 OS course (xv6/JOS, x86). More recent courses use RISC V.
• https://web.stanford.edu/class/cs140/projects/pintos/pintos.html — Stanford (pintOS)
• https://pwn.college — Arizona State University – Security, systems course
• https://cs61.seas.harvard.edu/site/2024 – Harvard CS 61
• https://read.seas.harvard.edu/cs161/2024/ – Harvard CS 161 (Chickadee OS, x86-64, C++)
• https://www.scs.stanford.edu/10wi-cs140/ – Standford CS 140 (PintOS, x86)
• http://www.os161.org/ – OS 161 (MIPS 32-bit)

Youtube

• https://www.youtube.com/@nanobyte-dev — Nanobyte
• https://www.youtube.com/@awesomekling — Andreas Kling (SerenityOS)
• https://www.youtube.com/@gamozolabs — gamozo
• https://www.youtube.com/@offlinemark — offlinemark

Linux/FreeBSD

• https://docs.freebsd.org/en/books/design-44bsd/ – The Design and Implementation of the 4.4BSD Operating System
• Understanding the Linux Kernel

Linux/POSIX Userspace

• The Linux Programming Interface: A Linux and UNIX System Programming Handbook

Blogs:

• https://manybutfinite.com/ — Gustavo Duarte

Concurrency & Parallelism

• https://deadlockempire.github.io/ – Concurrency games/challenges
• The Little Book of Semaphores