W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/...ocal/InRelease Temporary failure resolving 'us.archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/di...rity/InRelease Temporary failure resolving 'security.ubuntu.com'
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/...ates/InRelease Temporary failure resolving 'us.archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

E: Unable to locate package mariadb-server