# apt install -f mariadb-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
mariadb-server is already the newest version (10.0.31-0ubuntu0.16.04.2).
The following packages were automatically installed and are no longer required:
  linux-headers-4.4.0-81 linux-headers-4.4.0-81-generic linux-headers-4.4.0-83 linux-headers-4.4.0-83-generic linux-image-4.4.0-81-generic
  linux-image-4.4.0-83-generic linux-image-extra-4.4.0-81-generic linux-image-extra-4.4.0-83-generic
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up mariadb-server-10.0 (10.0.31-0ubuntu0.16.04.2) ...
dpkg: error processing package mariadb-server-10.0 (--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-10.0 (>= 10.0.31-0ubuntu0.16.04.2); however:
  Package mariadb-server-10.0 is not configured yet.

dpkg: error processing package mariadb-server (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 mariadb-server-10.0
 mariadb-server
E: Sub-process /usr/bin/dpkg returned an error code (1)