https://github.com/dipankardas011/custom-operatingsystem
https://github.com/dipankardas011/custom-operatingsystem
operating-system-learning
Last synced: 3 days ago
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- Host: GitHub
- URL: https://github.com/dipankardas011/custom-operatingsystem
- Owner: dipankardas011
- Created: 2021-10-05T17:47:53.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2021-10-08T18:07:23.000Z (about 4 years ago)
- Last Synced: 2025-05-07T19:17:09.839Z (5 months ago)
- Topics: operating-system-learning
- Language: C
- Homepage:
- Size: 4.26 MB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Write Your Own 64-bit Operating System Kernel From Scratch
This respository holds all the source code for [this YouTube tutorial series](https://www.youtube.com/playlist?list=PLZQftyCk7_SeZRitx5MjBKzTtvk0pHMtp).
You can find the revision for a specific episode on [this page](https://github.com/davidcallanan/yt-os-series/tags).
You can find pre-built ISO files for this kernel at [this repository](https://github.com/davidcallanan/os-series-isos).
Considering supporting this work via [my Patreon page](http://patreon.com/codepulse).
## Prerequisites
- A text editor such as [VS Code](https://code.visualstudio.com/).
- [Docker](https://www.docker.com/) for creating our build-environment.
- [Qemu](https://www.qemu.org/) for emulating our operating system.
- Remember to add Qemu to the path so that you can access it from your command-line. ([Windows instructions here](https://dev.to/whaleshark271/using-qemu-on-windows-10-home-edition-4062))
## Setup
Build an image for our build-environment:
- `docker build buildenv -t myos-buildenv`
## Build
Enter build environment:
- Linux: `docker run --rm -it -v "$pwd":/root/env myos-buildenv`
- MacOS: `docker run --rm -it -v "$PWD":/root/env myos-buildenv`
- Windows (PowerShell): `docker run --rm -it -v "${pwd}:/root/env" myos-buildenv`
> NOTE: If you are having trouble with an unshared drive, ensure your docker daemon has access to the drive you're development environment is in. For Docker Desktop, this is in "Settings > Shared Drives" or "Settings > Resources > File Sharing".
Build for x86 (other architectures may come in the future):
- `make build-x86_64`
To leave the build environment, enter `exit`.
## Emulate
You can emulate your operating system using [Qemu](https://www.qemu.org/): (Don't forget to add qemu to your path!)
- `qemu-system-x86_64 -cdrom dist/x86_64/kernel.iso`
- NOTE: When building your operating system, if changes to your code fail to compile, ensure your QEMU emulator has been closed, as this will block writing to `kernel.iso`.
Alternatively, you should be able to load the operating system on a USB drive and boot into it when you turn on your computer. (I haven't actually tested this yet.)
## Cleanup
Remove the build-evironment image:
- `docker rmi myos-buildenv -f`
## Results
