WSL2 Arm64 not supported - The architecture name is detected incorrectly

[carlossanlop]

I have an ARM64 laptop where I installed WSL2 running Ubuntu 18.04. I made sure to install vsdbg in Ubuntu, as well as dotnet, from a PPA. So all the requirements are met - I can also build the dotnet/runtime repo without problems.

But when I try to install the OmniSharp extension inside WSL2, I get this error dialog:

Notice the architecture name. It was detected as "aarch64". I suspect the architecture may be considered "unknown", even though the WSL2 architecture is actually "aarch64" when running inside an ARM64 machine. Here's the output of "uname":

carlos@armlaptop:~$ uname -a
Linux armlaptop 4.19.121-microsoft-standard #1 SMP Fri Jun 19 21:03:36 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux

This error is also preventing me from debugging. I have a configuration in launch.json, which works in another laptop (it's x64), but in my ARM64 laptop I get this error:

Let me know if you need more information.

cc @pgovind

[filipw]

ARM64 is not supported yet see #1706

[carlossanlop]

Thanks for letting us know, @filipw.
I'll close this issue in favor of #1706. cc @JoeRobich.

[carlossanlop]

Reopening because PR #1706 was only exploratory and won't address this.

[AngelMunoz]

I was exploring the viability of doing .Net in a Raspberry Pi 4 (8bg model) and while you can deploy .Net without any issues, developing/debugging is out of reach at the momtent

[modul8com]

I received the same error when trying to write C# using my Pi400. Since VS Code AND .net 5 runs perfectly and out of the box on the RaspberryPi now, it's time to port OmniSharp to a linux ARM64 architecture, so we can use the Raspberry Pi 400 (and others) for teaching purposes and fooling around in .NET 5 (and above).

[carlossanlop]

Agreed. @filipw what needs to be done to increase the priority of this issue?

[Cyber1000]

• debugging for rpi4 aarch64 works with my little modification (may work on other arm64/aarch-OS too):
  • Enable debugging on arm64 devices (testet with rpi4 - 64 bit) dotnet/vscode-csharp#4515
  • See also my comment (with link to alternative aarch64-vsix): Feature request: support Linux ARM / ARM64 dotnet/vscode-csharp#2771 (comment)

To be fully functional I would neeed this project working with arm64/aarch64 too. Any idea where to start?