Attempted a zypper dup on my installation this morning. I got this error messagage on one of the repositories. Warning: File 'repomd.xml' from repository 'openSUSE:Factory' is unsigned. Note: Signing data enables the recipient to verify that no modifications occurred after the data were signed. Accepting data with no, wrong or unknown signature can lead to a corrupted system and in extreme cases even to a system compromise. Note: File 'repomd.xml' is the repositories master index file. It ensures the integrity of the whole repo. Warning: We can't verify that no one meddled with this file, so it might not be trustworthy anymore! You should not continue unless you know it's safe. File 'repomd.xml' from repository 'openSUSE:Factory' is unsigned, continue? [yes/no] (no): Retrieving repository 'openSUSE:Factory' metadata ................................................................................................[error] Repository 'openSUSE:Factory' is invalid. [http-download.opensuse.org-fa10a0de|http://download.opensuse.org/tumbleweed/repo/oss/] Valid metadata not found at specified URL History: - Signature verification failed for repomd.xml - Can't provide /repodata/repomd.xml Please check if the URIs defined for this repository are pointing to a valid repository. Warning: Skipping repository 'openSUSE:Factory' because of the above error. Then zypper told me it was going to upgrade 2063 packages!! It didn't seem reasonable to me so I aborted the upgrade. What should I have done ? Has anyone else experienced this? Thanks