Package: default-mysql-client Version: 1.0.0 it's somewhat surprising that a package called default-mysql-client should force the removal of both mysql-client and mysql-server packages.
mariadb is NOT a drop-in replacement for mysql. # apt-get -d -u install default-mysql-client Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: default-mysql-client : Depends: mariadb-client-10.0 but it is not going to be installed E: Unable to correct problems, you have held broken packages. # apt-get -V -d -u install default-mysql-client mariadb-client-10.0 Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: mariadb-client-core-10.0 (10.0.27-2) The following packages will be REMOVED: mysql-client (5.7.15-1) mysql-client-5.7 (5.7.15-1) mysql-client-core-5.7 (5.7.15-1) mysql-server (5.7.15-1) mysql-server-5.7 (5.7.15-1) The following NEW packages will be installed: default-mysql-client (1.0.0) mariadb-client-10.0 (10.0.27-2) mariadb-client-core-10.0 (10.0.27-2) 0 upgraded, 3 newly installed, 5 to remove and 3 not upgraded. Need to get 5,700 kB of archives. After this operation, 69.5 MB disk space will be freed. Do you want to continue? [Y/n] n Abort. craig -- craig sanders <c...@taz.net.au>