Error when install mariadb-client mariadb-server:
Setting up libdbi-perl (1.636-1+b1) ... Setting up mariadb-server-core-10.1 (10.1.26-0+deb9u1) ... Setting up mariadb-client-core-10.1 (10.1.26-0+deb9u1) ... Setting up mariadb-client-10.1 (10.1.26-0+deb9u1) ... Setting up mariadb-client (10.1.26-0+deb9u1) ... Setting up mariadb-server-10.1 (10.1.26-0+deb9u1) ... dpkg: error processing package mariadb-server-10.1 (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mariadb-server: mariadb-server depends on mariadb-server-10.1 (>= 10.1.26-0+deb9u1); however: Package mariadb-server-10.1 is not configured yet. dpkg: error processing package mariadb-server (--configure): dependency problems - leaving unconfigured Processing triggers for libc-bin (2.24-11+deb9u1) ... Errors were encountered while processing: mariadb-server-10.1 mariadb-server E: Sub-process /usr/bin/dpkg returned an error code (1)