DGX GPG key problem

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.

This is my current state when I enter "sudo apt-get update
image

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.

Hello, For DGX support, please see this: DGX User Support

Hi @pmchelp512 ,

Have youfollowed the instructions in Upgrading — NVIDIA DGX OS 5 User Guide ?