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# Importing an existing SQLite database from another installation (optional)
Run this if you'd like to import your database from a previous default installation of Matrix Synapse.
(don't forget to import your `media_store` files as well - see [the restoring media store guide ](restoring-media-store.md )).
While this playbook always sets up PostgreSQL, by default a Matrix Synapse installation would run
using an SQLite database.
If you have such a Matrix Synapse setup and wish to migrate it here (and over to PostgreSQL), this command is for you.
Run this command (make sure to replace `<local-path-to-homeserver.db>` with a file path on your local machine):
ansible-playbook -i inventory/hosts setup.yml --extra-vars='local_path_homeserver_db=< local-path-to-homeserver.db > ' --tags=import-sqlite-db
**Note**: `<local-path-to-homeserver.db>` must be a file path to a `homeserver.db` file on your local machine (not on the server!). This file is copied to the server and imported.