apt-get install настаивает на удалении пакета, который я не хочу удалить!

  sudo apt-get install php5-mysqlnd
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  dbconfig-common php5 php5-fpm php5-pgsql wwwconfig-common
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  php5-pgsql
The following packages will be REMOVED:
  php5-mysql postfixadmin
The following NEW packages will be installed:
  php5-mysqlnd php5-pgsql
0 upgraded, 2 newly installed, 2 to remove and 5 not upgraded.
Need to get 186 kB of archives.
After this operation, 1,858 kB disk space will be freed.
Do you want to continue? [Y/n] n

Я не хочу, чтобы postfixadmin удалялся. Как установить mysqlnd (чтобы получить PHP и MariaDB) без apt-get удаления postfixadmin?

Спасибо!