myOS

I use many operating systems all day but can't clearly understand how they work and are implemented as a whole. This project is to write a very simple kernel so that I can figure out the key concepts and principles of an OS.

Key Features

• Multi-processing
• Paging system (virtual memory management)
• A file system
• Different types of syscalls
• Interrupts handling
• etc.

By Jiaxing Yang

From 2020.9

References

• MIT 6.828 (2018)
• osdev.org
• bkerndev
• skelix os
• GNU multiboot
• The little book about OS development
• 《Orange'S:一个操作系统的实现》 于渊
• 《操作系统真象还原》 郑钢
• 《Linux 内核源代码情景分析》 毛德操，胡希明

Screenshots

When myOS boots

A simple shell lvsh

• lvsh has some builtin commands: ps, ls, mm, etc.
• Can also execute a binary form it and pass command line args to the process.

A simple software cat (yes, it is the cat on Linux XD)

A software nothing used to test

Use nothing to trigger a page fault