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Maestro, a Linux compatible kernel written in Rust. (blog.lenot.re)

submitted 10 months ago by Gemini24601 to c/technology

77 comments fedilink hide all child comments

Enter Maestro, a unix-like monolithic kernel that aims to be compatible with Linux in order to ensure wide compatibility. Interestingly, it is written in Rust. It includes Solfége, a boot system and daemon manager, maestro-utils, which is a collection of system utility commands, and blimp, a package manager. According to Luc, it’s creator, the following third-party software has been tested and is working on the OS: musl (C standard library), bash, Some GNU coreutils commands such as ls, cat, mkdir, rm, rmdir, uname, whoami, etc… neofetch (a patched version, since the original neofetch does not know about the OS). If you want to test it out, fire up a VM with at least 1 GB of ram.

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[–] just_another_person -3 points 10 months ago (3 children)

Why?

[–] [email protected] 39 points 10 months ago* (last edited 10 months ago) (2 children)

Because someone decided to do it.

You don't always need a good reason other than it might be cool/fun. Sometimes it's just because you can.

You're not forced to use it, so if it's not your cup of tea, that's fine.

[–] Im_old 22 points 10 months ago

When my wife asks me "why are you doing [insert weird thing of the moment in my homelab]?" most of the times I answer "because I can!".

[–] Im_old 3 points 10 months ago (1 children)

When my wife asks me "why are you doing [insert weird thing of the moment in my homelab]?" most of the times I answer "because I can!".

[–] [email protected] 1 points 10 months ago

Exactly!

[–] VicentAdultman 16 points 10 months ago

He answers that in the project page. Just because there are kernels available, he can't build his own and learn about kernel and computers in general (the answer for your question)

[–] [email protected] 5 points 10 months ago* (last edited 10 months ago) (1 children)

written in Rust.

[–] just_another_person 1 points 10 months ago (2 children)

And ...why?

[–] asdfasdfasdf 4 points 10 months ago (1 children)

Contributing to Linux can be extremely daunting. Refactoring can be as well. Rust makes both of those a LOT easier. If a project is written in Rust instead of C there will be many more potential contributors and flexibility.

[–] [email protected] 1 points 10 months ago* (last edited 10 months ago)

And Rust has a restrictive trademark policy which could theoretically cause problems. Especially because of how full the source code of Rust is of the trademarks.

Just, why, Mozilla?

[–] [email protected] 1 points 3 months ago* (last edited 3 months ago)

"In kernel development, debugging is very hard for several reasons:

Documentation is often hard to find, and BIOS implementations may be flawed (more often than you would think)
On boot, the kernel has full access to the memory and is allowed to write where it should not (its own code, for example)
Troubleshooting memory leaks is not easy. Tools such as valgrind cannot be used
gdb can be used with QEMU and VMWare, but the kernel may have a different behaviour when running on a different emulator or virtual machine. Also, those emulators may not support gdb (example VirtualBox)
Some features in the support for gdb in QEMU or VMWare are missing and gdb might even crash sometimes

All those issues are reasons for using a memory-safe language, to avoid them as much as possible.

Overall, the use of Rust in the kernel allowed for the implementation of a lot of safeguards. And I believe that it is, to this day, the best decision I have made for this project."