Broken apt update?

Accelerated Computing DGX Spark / GB10 User Forum DGX Spark / GB10 Projects
1

when I run apt update, I see the following output:

root@spark:~# apt update

(...)
                                          
Err:5 https://workbench.download.nvidia.com/stable/linux/debian default InRelease                                      
  The following signatures were invalid: EXPKEYSIG CD63F8B21266DE3C svc-workbench <svc-workbench@nvidia.com>

(...)

28 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://workbench.download.nvidia.com/stable/linux/debian default InRelease: The following signatures were invalid: EXPKEYSIG CD63F8B21266DE3C svc-workbench <svc-workbench@nvidia.com>
W: Failed to fetch https://workbench.download.nvidia.com/stable/linux/debian/dists/default/InRelease  The following signatures were invalid: EXPKEYSIG CD63F8B21266DE3C svc-workbench <svc-workbench@nvidia.com>
W: Some index files failed to download. They have been ignored, or old ones used instead.

have I damaged my apt sources somehow?

2

This is a known issue, there are details and a workaround posted here:

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Update Available *again*
3

Please reference DGX Spark apt update failure (EXPKEYSIG)

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