Can't use System update - invalid signature when validating ASN.1 encoded signature

[k9janer]

Describe the bug

Hello,

I installed the nvidia KDE version of bazzite just 2 days ago. Today I wanted to update to the most recent release, but unfortunately, I keep getting the following error:

Pulling manifest: ostree-image-signed:docker://ghcr.io/ublue-os/bazzite-nvidia:stable
error: Creating importer: Failed to invoke skopeo proxy method OpenImage: remote error: cryptographic signature verification failed: invalid signature when validating ASN.1 encoded signature
System update failed:
0: Command failed: /usr/bin/rpm-ostree upgrade
1: /usr/bin/rpm-ostree failed: exit status: 1

What did you expect to happen?

I expected the System updater to work fine, just like 2 days ago.

Output of rpm-ostree status

State: idle
Deployments:
● ostree-image-signed:docker://ghcr.io/ublue-os/bazzite-nvidia:stable
                   Digest: sha256:43a94e8b18644ac34a9c5e6f1611915c576bfe08f70504e4f602d58f2bd11312
                  Version: 40.20240625.0 (2024-06-27T02:08:13Z)
          LayeredPackages: dnf-plugins-core

  ostree-image-signed:docker://ghcr.io/ublue-os/bazzite-nvidia:stable
                   Digest: sha256:43a94e8b18644ac34a9c5e6f1611915c576bfe08f70504e4f602d58f2bd11312
                  Version: 40.20240625.0 (2024-06-27T02:08:13Z)

Hardware

AMD Ryzen 5 7600
Nvidia GeForce RTX 4070 Super
32 GB Ram
AsRock B650M-HDV/M.2 with latest firmware

Extra information or context

No response

[castrojo]

We're aware of the issue and are working on a fix, will post as soon as we have more information, thanks!

[p5]

We made some mistakes yesterday which caused OS updates to break.

Please can you follow the instructions in this Discourse post to remediate the issues.

TL;DR
We lost access to our signing keys so had to rotate them.
Users need to run the following command or manually perform the actions in this script

$ curl -sL https://fix.universal-blue.org/ | sudo bash 

Apologies for the inconvenience caused by this! We are making changes to processes so that it doesn't happen again.