What does your OS look like? (Screen Shots..)

[max]

After doing absolutely nothing for way too long, I've done a lot recently.

Not very much to show visually, since I didn't work much on graphical applications, but I've added a VMWare SVGA driver implementation that allows larger video modes and also vastly improves the performance of the UI in general. In the current version it just tries to set up VMSVGA and otherwise does a fallback to VBE graphics. Also fixed many things in the kernel and did many performance improvements.

I think the interesting part about it is that - since it is a microkernel - all the work for identifying PCI devices (done by pcidriver), setting up video mode (vmsvgadriver, vbedriver), the actual UI stuff (windowserver) als well as input (ps2driver) is cleanly separated in own driver apps running in userland - just with slightly elevated permissions to write to IO ports. It isolates everything pretty well and a faulty driver rarely takes down the whole system. It also introduces quite some communication handling - the services talk mostly via messaging. Next step is that I need to figure out a good way to keep track of existing devices for example to have a unified interface for setting up video, without having to specifically ask the vmsvgadriver or the vbedriver to do so.

Aside from that I'm working on an AHCI driver to finally get SATA support. Oh and I've set up GitHub releases so you can always get the latest release here: https://github.com/maxdev1/ghost/releases

[eekee]

That level of organization is why I chose a microkernel design too.

Nice to see releases, and binary ones at that. I've recently been reminded of why I avoid rolling release.

[max]

Nice to see releases, and binary ones at that. I've recently been reminded of why I avoid rolling release.

Yes I mean, at least someone can play with it then. Even though it is more demos than real releases.

Why is that? I had one or two that didn‘t work since I don‘t download every single one and test it myself, that‘s a bit of an issue

[venos]

Eleanor Semaphor, eat your heart out.

I got a (very simple round robin) scheduler working today, and that makes me very bloody happy.

[alnyannn]

My OS now runs doom (doomgeneric), from an emulated NVMe drive, through a Rust libc and a Rust binding library to allow C to communicate with my window server. I now have a somewhat functional tiling WM, but not enough resolution, which is why doom window's clipped in the screenshot.

I think this may also count as my OS's announcement

[eekee]

Nice to see releases, and binary ones at that. I've recently been reminded of why I avoid rolling release.

Yes I mean, at least someone can play with it then. Even though it is more demos than real releases.

Why is that? I had one or two that didn‘t work since I don‘t download every single one and test it myself, that‘s a bit of an issue

Oh, well, I guess I was thinking of releases as in release-quality software, well-tested and all that. Silly of me to think of that around here, I know very few hobby OSs are going to reach that stage. I generally dislike rolling release because my health gets too bad to deal with bugs popping up when I'm trying to get other things done. My "recent reminder" came from a Forth environment on Android which has started intermittently failing to redraw its display as I type. There's no roll-back that I can see.

[max]

Oh, well, I guess I was thinking of releases as in release-quality software, well-tested and all that. Silly of me to think of that around here, I know very few hobby OSs are going to reach that stage. I generally dislike rolling release because my health gets too bad to deal with bugs popping up when I'm trying to get other things done. My "recent reminder" came from a Forth environment on Android which has started intermittently failing to redraw its display as I type. There's no roll-back that I can see.

Haha that's quite the stretch for what we do here, "release" means it basically runs Hope you'll get better health-wise. I was recently sitting about a whole week on debugging a bug of which I had no idea what the origin was which turned out to be the FPU in the end, that cost me at least a few gray hairs.

My OS now runs doom (doomgeneric), from an emulated NVMe drive, through a Rust libc and a Rust binding library to allow C to communicate with my window server. I now have a somewhat functional tiling WM, but not enough resolution, which is why doom window's clipped in the screenshot.

I think this may also count as my OS's announcement

Very cool stuff! Are you developing completely in Rust? I've been looking into it a bit more after having much pain with C++ once again and got really tired of it. Does it work out well for you so far? Sure looks like it does!

[alnyannn]

Very cool stuff! Are you developing completely in Rust? I've been looking into it a bit more after having much pain with C++ once again and got really tired of it. Does it work out well for you so far? Sure looks like it does!

Yeah, it's almost fully Rust, with the exception of ports (I managed to port LLVM/clang and some GNU stuff to the OS) and some assembler in the kernel/libc. Rust is pretty fun and can save a lot of time and effort sometimes, e.g., by having a nice libcore/libstd implementation + the ability to run async routines in the kernel is really convenient, but I think I'm becoming too lazy and reliant on abstractions. Also, dynamic dispatch might be pretty painful/ugly sometimes, which is why I kinda hate my VFS implementation right now, but can't really come up with anything prettier that wouldn't just be a hand-crafter vtable mess. Other than that, I really like it, coming from previous attempts at osdeving in C.

[Dennisbonke]

It's been a while since my last post here, but we've been hard at work getting new items up and running on Managarm. Just now, we achieved a major goal that we have been working towards for the better part of 2 years. Today, we managed to boot into Weston (the wayland reference compositor) using systemd. Managarm can now use systemd as its init manager. This is not upstream yet, we're still cleaning up some bits and pieces, but it should be coming to a Managarm installation near you soon!