# DGX GPG key problem

**URL:** <https://forums.developer.nvidia.com/t/dgx-gpg-key-problem/315026>\
**Category:** DGX Systems (DATA CENTER)\
**Created:** [November 28, 2024, 6:24am UTC](https://forums.developer.nvidia.com/t/dgx-gpg-key-problem/315026 "2024-11-28T06:24:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pmchelp512](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pmchelp512](https://forums.developer.nvidia.com/u/pmchelp512)\
**Post date:** [November 28, 2024, 6:24am UTC](https://forums.developer.nvidia.com/t/dgx-gpg-key-problem/315026/1 "2024-11-28T06:24:48Z")

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I have a GPG Key problem when I tried to put " apt-get update using DGX workstation.  
So, I have found the same issue and followed the instruction.

> [@Ubuntu 20.04 NVIDIA Driver Update Error](https://forums.developer.nvidia.com/t/ubuntu-20-04-nvidia-driver-update-error/277719):
>
> Ubuntu 20.04 NVIDIA Driver Update Error I am trying to sudo apt-get update but I am getting the following error: W: GPG error: https://repo.download.nvidia.com/baseos/ubuntu/focal/x86\_64 focal InRelease: The following signatures couldn't be verified because the public key is not available: NO\_PUBKEY 208CE844D9F220AD E: The repository 'https://repo.download.nvidia.com/baseos/ubuntu/focal/x86\_64 focal InRelease' is not signed. N: Updating from such a repository can't be done securely, and …

This is my current state when I enter "sudo apt-get update  
 ![image](https://global.discourse-cdn.com/nvidia/optimized/4X/c/b/6/cb6c2f753d9bf8e33c0d589350b77a66a9bbb206_2_690x25.png)

but now it didn’t work to me.

My DGX conditions are below.

1. DGX\_OTA\_VERSION=“5.2.0”
2. ubuntu 20.04

please give me some tips to solve it.

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<div class="post-metadata">

**Author:** ![TomNVIDIA](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/tomnvidia/32/14181_2.png) [@TomNVIDIA](https://forums.developer.nvidia.com/u/TomNVIDIA)\
**Post date:** [December 2, 2024, 2:50pm UTC](https://forums.developer.nvidia.com/t/dgx-gpg-key-problem/315026/2 "2024-12-02T14:50:34Z")

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Hello, For DGX support, please see this: [DGX User Support](https://forums.developer.nvidia.com/t/dgx-user-support/15)

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<div class="post-metadata">

**Author:** ![ScottEllis](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/scottellis/32/14043_2.png) [@ScottEllis](https://forums.developer.nvidia.com/u/ScottEllis)\
**Post date:** [December 3, 2024, 12:18am UTC](https://forums.developer.nvidia.com/t/dgx-gpg-key-problem/315026/3 "2024-12-03T00:18:40Z")

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Hi @pmchelp512 ,

Have youfollowed the instructions in [Upgrading — NVIDIA DGX OS 5 User Guide](https://docs.nvidia.com/dgx/dgx-os-5-user-guide/upgrading.html#rotating-the-gpg-keys) ?