Error during installation:Failed to connect to your database server. The server reports the following message: SQLSTATE[HY000] [2019] Can't initialize character set utf8mb4 (path: /usr/share/mysql/charsets/).
seems like the change to utf8mb4 introduced in https://www.drupal.org/node/1314214 breaks installation at least at my hosting provider DomainFactory. They support only utf8