Help Needed - Unable to Boot My OS from a USB Drive

[DarkOutcast6]

Issue

I can't figure out how to boot my OS from a flash drive. I read this article and changed "VMWare" to "ISO Image" in the properties, but whenever I start it, it gives me the following error:

But, if I set the run type to "release" I get a error stating that the release configuration is not supported.
Please help, thank you!

Version

I'm using the COSMOS User Kit in C#.

[MEMESCOEP]

I solved this problem by using Ventoy. You can easily drag & drop your ISO on the USB and then select it from a menu once you've booted from the USB. Rufus and BalenaEtcher fail because they don't see any filesystems in the compiled ISO at the moment. You can find your ISO in your project's "\bin\Debug\net6.0" folder.

I'd also suggest that you use the devkit as it's much more updated.

[DarkOutcast6]

@MEMESCOEP I cannot find the ISO file. What is a possibility it could be called in the "\bin\Debug\net6.0" folder? There is a folder named “IOS”. Could it be within that?

Does devkit mean more complexity? The OS I am building is entirely command-line based, no GUI.

[MEMESCOEP]

@MEMESCOEP I cannot find the ISO file. What is a possibility it could be called in the "\bin\Debug\net6.0" folder? There is a folder named “IOS”. Could it be within that?

Does devkit mean more complexity? The OS I am building is entirely command-line based, no GUI.

The ISO file should be called <Project name>.iso, you might need to compile first before it'll show up.

The devkit does have some fixes for console things iirc, I just don't remember exactly what they were

[DarkOutcast6]

@MEMESCOEP The problem is, I get an error whenever I compile my project as a ISO image.

[MEMESCOEP]

@MEMESCOEP The problem is, I get an error whenever I compile my project as a ISO image.

I've accidentally left out some important information, sorry. You can set it back to "VMWare", as it should still generate an ISO file. The ISO option is kinda broken in the userkit, but I forgot why. I'll try to find some more information.

You should also disable the cosmos debugger when testing on real hardware because it'll fail to connect and the OS won't do anything else

[DarkOutcast6]

I've accidentally left out some important information, sorry. You can set it back to "VMWare", as it should still generate an ISO file. The ISO option is kinda broken in the userkit, but I forgot why. I'll try to find some more information.

@MEMESCOEP Will try.

---

I've accidentally left out some important information, sorry. You can set it back to "VMWare", as it should still generate an ISO file. The ISO option is kinda broken in the userkit, but I forgot why. I'll try to find some more information.

How do I do so?

[MEMESCOEP]

I've accidentally left out some important information, sorry. You can set it back to "VMWare", as it should still generate an ISO file. The ISO option is kinda broken in the userkit, but I forgot why. I'll try to find some more information.

@MEMESCOEP Will try.

---

I've accidentally left out some important information, sorry. You can set it back to "VMWare", as it should still generate an ISO file. The ISO option is kinda broken in the userkit, but I forgot why. I'll try to find some more information.

How do I do so?

In your project properties, set "ISO Image" back to "VMware"

[DarkOutcast6]

@MEMESCOEP Great! I have loaded it the ISO file onto a USB with Rufus. But, when I try to boot it from the USB on a computer, it gets stuck on the screen saying “Finding PCI…”

[MEMESCOEP]

@MEMESCOEP Great! I have loaded it the ISO file onto a USB with Rufus. But, when I try to boot it from the USB on a computer, it gets stuck on the screen saying “Finding PCI…”

I've had this problem too on certain computers, tbh I have no clue what causes it. Cosmos just doesn't like certain computers ig

[DarkOutcast6]

@MEMESCOEP So I cannot use my OS on my old MacBook? Would switching to devkit help? Is there anyone who would know a fix?

[MEMESCOEP]

@MEMESCOEP So I cannot use my OS on my old MacBook? Would switching to devkit help? Is there anyone who would know a fix?

I'm not sure how compatible Cosmos is with MacBooks atm, but maybe one of the coredevs know

[DarkOutcast6]

Who is a "coredev" that I can contact?

Also, do you know if COSMOS works on Windows PCs, @MEMESCOEP?

[9xbt]

cosmos supports x86 so yes

[9xbt]

also coredevs are literally core developers, join the discord server for more help

[9xbt]

also "i need help" is not bugs, you should move this to the discussions page

[DarkOutcast6]

@MishaProductions Sorry for the late response, but do we have any information on when x64 support will come?

[MishaProductions]

UEFI support was added in #2828 . I don't know when x64 support will be added

[DarkOutcast6]

@MishaProductions That’s great! Thanks for the update! I’ll try again to load COSMOS on my MacBook and see what happens!

[9xbt]

@DarkOutcast6 I'm 99% sure that won't work because computers that are UEFI are usually x64 and the fact that if you have a pretty new MacBook the chance that it will have an M1 or M2 ARM CPU instead of an Intel x86_64 CPU

[DarkOutcast6]

My MacBook is from 2012, so I know it is intel-based. I’m pretty sure it runs x86, though I'm not 100% sure.

[DarkOutcast6]

@9xbt Do you have any ideas for this issue?

[9xbt]

My MacBook is from 2012, so I know it is intel-based. I’m pretty sure it runs x86, though I'm not 100% sure.

It should run just fins

[9xbt]

@9xbt Do you have any ideas for this issue?

No, not really, but fyi these drivers were probably written before UEFI support and stuff can be different, which may explain why it won't work

[zarlo]

@DarkOutcast6 I'm 99% sure that won't work because computers that are UEFI are usually x64 and the fact that if you have a pretty new MacBook the chance that it will have an M1 or M2 ARM CPU instead of an Intel x86_64 CPU

cosmos will run fine on any x86 cpu including x86_64/amd64

and with resent changes it should work on UEFI some things will not work like console but

[DarkOutcast6]

@9xbt @zarlo But even though I have tried using the canvas, nothing will appear, no matter what I try. Why is this? Is it a bug?

[zarlo]

what canvas back end are you using?

[DarkOutcast6]

@zarlo Wdym? I'm using the FullscreenCanvas, if that's what you mean. It works fine in VMware.

[zarlo]

okay try using

new VBECanvas()

if that does not work then try

new VGACanvas();

this will help work out if there is an issue in the logic used by FullScreenCanvas

[DarkOutcast6]

@zarlo Trying it out now. Crossing my fingers!

[DarkOutcast6]

@zarlo VBECanvas doens't work. trying VGACanvas now.

[DarkOutcast6]

@zarlo Tried using VGACanvas, but it didn't even work in VMware, and VBECanvas worked in VMware, just not on the real device. What should I do?

[zarlo]

dont forget you need to call canvas.Display() for it to show anything with some of the backends

[DarkOutcast6]

@zarlo Already did that in my code.

[zarlo]

i guess for now you will have to run it in a VM

[DarkOutcast6]

@zarlo @9xbt There's absolutely no way to run it on my physical hardware? Any ideas that could possibly fix it?

[DarkOutcast6]

Hello. I am sorry if this is annoying, but I’d really like to know if there is any way I can use a workaround to run my OS on my MacBook. If anyone has anything to provide that may be of use to me, please do.

[9xbt]

Tim Cook won't like you doing that and even if you were actually able to boot it you wouldn't be able to use the keyboard or mouse because Cosmos doesn't support USB, plus I think Cosmos only outputs VGA but I'm unsure about that. Anyways I don't think it's gonna be possible to run Cosmos on MacBooks (yet).

[9xbt]

I'm sorry about that but I can't try to actually do it myself since I don't own a MacBook

[9xbt]

:(

[DarkOutcast6]

@9xbt I guess it’s fine, if it really won’t work. Sorry for all the trouble.