sudo apt update &&sudo apt upgrade
Setting up mariadb-common (1:10.1.48-0ubuntu0.18.04.1) ...update-alternatives: error: alternative path /etc/mysql/mariadb.cnf doesn't existdpkg: error processing package mariadb-common (--configure):installed mariadb-common package post-installation script subprocess returned error exit status 2Errors were encountered while processing:mariadb-commonE: Sub-process /usr/bin/dpkg returned an error code (1)