# Lambda Stack seems to be wiped out after Ubuntu update

**URL:** <https://deeptalk.lambda.ai/t/lambda-stack-seems-to-be-wiped-out-after-ubuntu-update/2437>\
**Category:** Technical Help\
**Created:** [June 21, 2021, 11:12pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-seems-to-be-wiped-out-after-ubuntu-update/2437 "2021-06-21T23:12:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![markd](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@markd](https://deeptalk.lambda.ai/u/markd)\
**Post date:** [June 28, 2021, 1:32pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-seems-to-be-wiped-out-after-ubuntu-update/2437/2 "2021-06-28T13:32:24Z")

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Ivo,

I do not see a ticket from you for 3 months. ‘support@lambdalabs.com’ should create a ticket.  
And Jeremy is still here and active.

It looks like it was removed since the ‘nvidia-smi’ command is not even found. So it looks like the  
nvidia software is not installed. You can email me or ‘support@lambdalabs.com’ and we can walk  
through this or do it for you and make sure it is working.

The following will remove all NVidia software, deep learning libraries, and then reinstall Lambda Stack.

```auto
sudo rm -f /etc/apt/sources.list.d/{graphics,nvidia,cuda}*; \
	COLUMNS=200 dpkg -l |
	awk '/cuda|lib(accinj64|cu(blas|dart|dnn|fft|inj|pti|rand|solver|sparse)|magma|nccl|npp|nv[^p])|nv(idia
|ml)|tensor(flow|board)|torch/ { print $2 }' |
	sudo xargs -or apt -y remove --purge && LAMBDA_REPO=$(mktemp) && \
	wget -O${LAMBDA_REPO} https://lambdalabs.com/static/misc/lambda-stack-repo.deb && \
	sudo dpkg -i ${LAMBDA_REPO} && rm -f ${LAMBDA_REPO} && \
	sudo apt-get -y update && sudo apt-get -y install lambda-stack-cuda

```

Try running that, then reboot, and let me know if you’re able to run `nvidia-smi`.

Mark

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