[ mariadb ] Failed to load slave replication state from table mysql.gtid_slave_pos: 1017: Can't find file: './mysql/' (errno: 2 "No such file or directory")

log-bin = /var/log/mariadb/mariadb-bin
log-bin-index = /var/log/mariadb/mariadb-bin.index
binlog_format = mixed

from my config does, in fact, remove the 'warning'.