Please help configuring NVIDIA-SMI Ubuntu 20.04 on WSL 2

Following this announcement and somewhat trying to follow this confusing thread, I

• installed Windows Version 10.0.20150 Build 20150
• installed NVidia Driver version 455.51
• installed Ubuntu 20.04 LTS from the Windows Store

I started Ubuntu and tried to run NVIDIA-SMI. It told me it wasn't there but that I could install it with one of these options:

Command 'nvidia-smi' not found, but can be installed with:sudo apt install nvidia-340        # version 340.108-0ubuntu2, orsudo apt install nvidia-utils-390  # version 390.132-0ubuntu2sudo apt install nvidia-utils-435  # version 435.21-0ubuntu7sudo apt install nvidia-utils-440  # version 440.82+really.440.64-0ubuntu6

Note that there is no nvidia-utils-450 option corresponding to my 455.51, which the NVidia thread above said somewhere is required to make things go. I then ran

sudo apt install nvidia-utils-440nvidia-smi

and it said "No devices found".

Then I found this guide. I uninstalled Ubunto 20.04, and then followed the guide. The guide asked me to

• install a vanilla Ubuntu (no release number), which I did instead of 20.04. (This turns out to give me 20.04).
• install Windows Terminal (I chose the Preview version)
• check to receive updates for related Windows programs
• update the kernel to 4.9.121
• install NVIDIA CUDA drivers on Windows 10 (I already did 455, have to check the CUDA release)
• install Docker
• install NVidia Container Toolkit
• test

The "install docker" part of that guide seems to be buggy. I couldn't get docker service to start. So I uninstalled my Ubuntu and repeated the steps up to that point, without touching Docker. Then (my version), the steps from the Docker point are (for docker part I am following these instructions to get Docker):

sudo apt-get updatesudo apt-get upgradesudo apt updatesudo apt install apt-transport-https ca-certificates curl software-properties-commoncurl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"sudo apt updateapt-cache policy docker-cesudo apt install docker-cesudo systemctl status docker

The last step fails. I get this message:

$ sudo systemctl status dockerSystem has not been booted with systemd as init system (PID 1). Can't operate.Failed to connect to bus: Host is down

That led me here and the 4th and almost lowest-scored answer seems to work, except it needs to be run in background mode:

sudo dockerd &sudo usermod -aG docker your-user

Then I go back to the guide post-Docker install step and resume with

docker run --gpus all nvcr.io/nvidia/k8s/cuda-sample:nbody nbody -gpu -benchmark

and this fails with

ERRO[2020-06-23T07:28:28.582848400-04:00] 5cd9b9d7011ba20f72971dd27900b23b2c0f6be656b0bd53b9e178944fe4eba6 cleanup: failed to delete container from containerd: no such containerERRO[2020-06-23T07:28:28.582946600-04:00] Handler for POST /v1.40/containers/5cd9b9d7011ba20f72971dd27900b23b2c0f6be656b0bd53b9e178944fe4eba6/start returned error: could not select device driver "" with capabilities: [[gpu]]docker: Error response from daemon: could not select device driver "" with capabilities: [[gpu]].ERRO[0018] error waiting for container: context canceled

Finally I went back to the NVidia announcement and did these steps:

sudo apt-get updatedistribution=$(. /etc/os-release;echo $ID$VERSION_ID)curl -s -L https://nvidia.github.io/nvidia-docker/gpgkey | sudo apt-key add -curl -s -L https://nvidia.github.io/nvidia-docker/$distribution/nvidia-docker.list | sudo tee /etc/apt/sources.list.d/nvidia-docker.listcurl -s -L https://nvidia.github.io/libnvidia-container/experimental/$distribution/libnvidia-container-experimental.list | sudo tee /etc/apt/sources.list.d/libnvidia-container-experimental.listsudo apt-get updatesudo apt-get install -y nvidia-docker2sudo dockerd &docker run --gpus all nvcr.io/nvidia/k8s/cuda-sample:nbody nbody -gpu -benchmark

SUCCESS: and I got a happy result:

> Windowed mode> Simulation data stored in video memory> Single precision floating point simulation> 1 Devices used for simulationGPU Device 0: "Quadro M500M" with compute capability 5.0> Compute 5.0 CUDA device: [Quadro M500M]3072 bodies, total time for 10 iterations: 3.817 ms= 24.724 billion interactions per second= 494.487 single-precision GFLOP/s at 20 flops per interaction

HOWEVER, per answer below, there is no NVIDIA-SMI, per known NVIDIA limitations.

FURTHER NOTE: The docker container test above works on Ubuntu shell. It does not work on Windows Powershell Preview with the Ubuntu tab.