# apt-get upgrade

Reading package lists... Done

Building dependency tree

Reading state information... Done

Calculating upgrade... Done

0 upgraded, 0 newly installed, 0 to remove and 0 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]

Setting up mariadb-server-10.1 (10.1.10+maria-1~trusty) ...

 * Stopping MariaDB database server mysqld

   ...done.

 * Starting MariaDB database server mysqld

   ...fail!

invoke-rc.d: initscript mysql, action "start" failed.

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 (= 10.1.10+maria-1~trusty); however:

  Package mariadb-server-10.1 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-10.1

 mariadb-server

E: Sub-process /usr/bin/dpkg returned an error code (1)