Update Failure with Application Deployment - APT repository not signed – Release.gpg missing

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Phobos’ v2.6.5.2 (Mainline)
Virtualization ProxmoxLXC
Application Application Deployment
Module ADSModule
Running in Container No
Current State Indeterminate

Problem Description

Issue

Hello CubeCoders Support,

I am currently unable to run apt update on my Debian 12 (Bookworm) system due to an issue with the CubeCoders APT repository.

APT returns the following error:

E: The repository “https://repo.cubecoders.com
debian/ Release” is no longer signed.

After enabling HTTPS debug output, I can see that:

https://repo.cubecoders.com/debian/InRelease

redirects to https://cdn-repo.c7rs.com/debian/InRelease

The Release file is served correctly

However, Release.gpg returns HTTP 404 (Not Found)

This appears to indicate that the repository is currently not properly signed, as the Release.gpg file is missing.

My current repository configuration:

deb [signed-by=/usr/share/keyrings/repo.cubecoders.com.gpg] https://repo.cubecoders.com/
debian/

Because of this, APT refuses to update the package lists.

Could you please confirm whether:

The repository signing configuration has recently changed?

A new GPG key needs to be installed?

Or if this is a temporary issue on the CDN side?

Thank you for your assistance.

Best regards

Reproduction Steps

  • Installed AMP on a Debian 12 (Bookworm) system using the official CubeCoders repository.
  • Verified that the repository entry is configured with signed-by=/usr/share/keyrings/repo.cubecoders.com.gpg.
  • Executed apt update to refresh package lists.
  • APT returns the error: E: The repository “https://repo.cubecoders.com debian/ Release” is no longer signed.
  • Enabled HTTPS debug output using apt update -o Debug::Acquire::https=true and observed that: The repository redirects to cdn-repo.c7rs.com The Release file is served The Release.gpg file returns HTTP 404 (Not Found)

Is this a fairly old system? You’re using an old repository that doesn’t exist any more.

Remove the repo.cubecoders.com listing from /etc/apt/sources.list.d then run getamp addRepo as root.