Mythtv .22 from avenard does not create a database user
This is likely a problem with a post-install script of the avencard provided debs, but it should be documented here. The mythtv deb should create a db user for itself ('mythtv' typically) as part of the installation process, but it is not doing this. The user info is correctly being written to /etc/mythv/mysql.txt, but it is invalid which causes a cascade of other failures. It may be possible to put in a workaround until this can be resolved.