Comment 2 for bug 1545361

From log:

Commandline: apt-get install mysql-server php5-mysql
Install: mysql-server-core-5.6:amd64 (5.6.28-0ubuntu0.15.10.1, automatic), mysql-server-5.6:amd64 (5.6.28-0ubuntu0.15.10.1, automatic), mysql-client-core-5.6:amd64 (5.6.28-0ubuntu0.15.10.1, automatic), php5-mysql:amd64 (5.6.11+dfsg-1ubuntu3.1), mysql-client-5.6:amd64 (5.6.28-0ubuntu0.15.10.1, automatic), mysql-server:amd64 (5.6.28-0ubuntu0.15.10.1)
Remove: mariadb-client:amd64 (10.0.23-0ubuntu0.15.10.1), mariadb-client-core-10.0:amd64 (10.0.23-0ubuntu0.15.10.1), mariadb-server-core-10.0:amd64 (10.0.23-0ubuntu0.15.10.1), mariadb-client-10.0:amd64 (10.0.23-0ubuntu0.15.10.1), mariadb-server-10.0:amd64 (10.0.23-0ubuntu0.15.10.1)
Error: Sub-process /usr/bin/dpkg returned an error code (1)

From log:

Creating config file /etc/php5/mods-available/mysql.ini with new version
cp: cannot create regular file ‘/etc/php5/mods-available/mysql.ini’: No such file or directory