## Command ‘nvidia-smi’ not found after Lambda Stack reinstall

**Date:** Jan 7, 2023  
**Category:** Technical Help

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W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:57 and /etc/apt/sources.list.d/l…

Now I’m getting a similar warning as one of the earlier posts: **NVIDIA-SMI has failed** because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

```bash
sudo apt update &> nvidia-smi-troubleshooting.txt
```

I can’t post the whole output since as a …

I followed the steps to remove and reinstall Lambda Stack in Ubuntu on a Tensorbook ([Reinstall Lambda Stack in Ubuntu on a Tensorbook](https://support.lambdalabs.com/hc/en-us/articles/6762130411277-Reinstall-Lambda-Stack-in-Ubuntu-on-a-Tensorbook)), but I get an error command ‘nvidia-smi’ not found followed by a number of suggestions for packages to…
