Old Issue popping up and prior corrections fail

Trying to load a SSD for a dev kit, I keep getting an error from the SDK.
SDK Manager is verifying system readiness to install.

APT repository access for Debian package installation(host).

Apt repository check failure (1. sudo -S apt-get update && sudo -S apt-get check; 2. dpkg --audit). command < sudo timeout 300 apt-get update && sudo timeout 300 apt-get check > terminated with error, exitCode: 100.

Running the commands shows me:
sudo apt-get update
Get:1 file:/var/cuda-repo-ubuntu2204-13-0-local InRelease [1,572 B]
Get:2 file:/var/l4t-cuda-repo-cross-aarch64-ubuntu2204-12-6-local InRelease [1,572 B]
Get:3 file:/var/l4t-cuda-repo-ubuntu2204-12-6-local InRelease [1,572 B]
Get:1 file:/var/cuda-repo-ubuntu2204-13-0-local InRelease [1,572 B]
Get:2 file:/var/l4t-cuda-repo-cross-aarch64-ubuntu2204-12-6-local InRelease [1,572 B]
Get:3 file:/var/l4t-cuda-repo-ubuntu2204-12-6-local InRelease [1,572 B]
Err:1 file:/var/cuda-repo-ubuntu2204-13-0-local InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 25547698BE1CC667
Hit:4 Index of linux/ubuntu/ jammy InRelease
Hit:5 Index of /ubuntu jammy InRelease
Hit:6 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:7 Index of /ubuntu jammy-security InRelease
Hit:8 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
Reading package lists… Done
W: GPG error: file:/var/cuda-repo-ubuntu2204-13-0-local InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 25547698BE1CC667
E: The repository ‘file:/var/cuda-repo-ubuntu2204-13-0-local InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

which says that the public key is no longer correct.

sudo apt-key del is deprecated

wget https://developer.download.nvidia.com/compute/cuda/repos/$distro/$arch/cuda-keyring_1.0-1_all.deb

Thinks about it for a while and then gives me a 404 error

sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/$distro/$arch/cuda-$distro.repo
tells me dnf not found, I did not chase that down as I do not have a clue as to what package it is in,

Since the old issue fixes are not updates, what is the current fix?
I am working with SDK 6.2.1 on Orin nano and Orin-NX modules

Hi,

What is your device?
Is your device a Jetson Nano or Orin Nano?

Thanks

The device is a Jetson Orin NX 16GB according to the SDK Manager