Percona Update Errors


When running apt-get upgrade I get this error:

Reading package lists… Done W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: trusty InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 9334A25F8507EFA5

W: Failed to fetch

W: Some index files failed to download. They have been ignored, or old ones used

This issue with Percona is known and documented here -

When will a fix be incorporated into EasyEngine?


Percona is deprecated for months now!


ee stack upgrade --mysql

It would be better if you had a test server prior to applying any changes to your production server.


Thank you, I had to run ee update first, then that command, but it worked.