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Show HN: A DOS-like hobby OS written in Rust and x86 assembly

(github.com)
207 points krustowski | 3 comments | 19 Jun 25 13:38 UTC | HN request time: 0.868s | source

To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU.

https://blog.vxn.dev/rou2exos-rusted-edition

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jmmv ◴[20 Jun 25 00:34 UTC] No.44323791[source]▶
I don’t understand: what makes this “DOS-like”? Not even the command names match DOS, except for dir and cls, and the architecture and feature set are completely different.
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1. klank ◴[20 Jun 25 00:56 UTC] No.44323879[source]▶
The original blog post has more details: https://krusty.space/projects/rourexos/

Ultimately, it's an eye of the beholder type thing, but it seems very fair to call it DOS-like to me. The DOS inspiration is pretty blatant all throughout it from its aesthetic, commands (more than just dir and cls is shared), booting from a 1.44 floppy, etc. And if you are coming from a primarily windows computing background, then "DOS-like" is entirely appropriate to me.

It looks like a fun project.

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2. jmmv ◴[20 Jun 25 03:59 UTC] No.44324614[source]▶
Ah yes, the first version does indeed sound DOS-like. The second one diverges quite a bit though.

Fun project indeed.

replies(1): >>44328543 #
3. krustowski ◴[20 Jun 25 15:17 UTC] No.44328543[source]▶
You are right, it goes way ahead the first iteration. I call it DOS-like because of its resemblance to the Text mode-only operating systems (and to MS-DOS especially). On the other hand, it shares very little as the architecture, command set, or hardware utilization approach are concerned when compared to MS-DOS.