1588150 : cc7:amd64 container not reachable

Created: 2026-03-29T22:43:18Z - current status: new

Anonymized Summary: A user reports that their jobs are failing due to an issue accessing a container image via CVMFS. The error indicates that the system cannot locate the specified image path: /cvmfs/unpacked.cern.ch/registry.hub.docker.com/cmssw/cc7:amd64. The error suggests the image may no longer be available in the CVMFS repository.

Suggested Solution/Next Steps: 1. Verify CVMFS Access: Run the following command to check if the CVMFS repositories are reachable and properly mounted: bash cvmfs_config probe If this fails, there may be a broader CVMFS connectivity issue.

  1. Check Image Availability:
  2. Confirm whether the image (cc7:amd64) is still available in the repository. The EL8 version (cc8:amd64) is documented as an alternative for CMS workflows (see context below).

  3. List the contents of the CVMFS directory to verify if the image exists: bash ls /cvmfs/unpacked.cern.ch/registry.hub.docker.com/cmssw/

  4. Update to a Supported Image: If the cc7:amd64 image is deprecated, switch to the recommended EL8 image for CMS: /cvmfs/unpacked.cern.ch/registry.hub.docker.com/cmssw/cc8:amd64 Refer to the EL8 Support for CMS documentation for details.

  5. Contact Support: If the issue persists after verifying CVMFS access and image availability, escalate to the NAF/CVMFS administrators with the error logs.

Sources Used: - CVMFS Repository Access Test - CMS EL8 Image Documentation - CVMFS Filesystem Overview