derive bbox size for postcode nodes from rank_search

[nominatim.git] / packaging / nominatim-db / README.md

diff --git a/packaging/nominatim-db/README.md b/packaging/nominatim-db/README.md
index bf34935cd964c1b176d86bab71ddb94b7dbe72b4..a8ffd09a3faf04ca92c6d03d149190ac29da48fe 100644 (file)
--- a/packaging/nominatim-db/README.md
+++ b/packaging/nominatim-db/README.md
@@ -1,5 +1,4 @@
-Nominatim - DB Backend
-=========
+# Nominatim - DB Backend
 
 Nominatim is a tool to search OpenStreetMap data
 by name and address (geocoding) and to generate synthetic addresses of
@@ -8,14 +7,48 @@ OSM points (reverse geocoding).
 This module implements the database backend for Nominatim and the
 command-line tool for importing and maintaining the database.
 
-Documentation
-=============
+## Installation
 
-The documentation of the latest development version is in the
-`docs/` subdirectory. A HTML version can be found at
-https://nominatim.org/release-docs/develop/ .
+### Prerequisites
 
-License
-=======
+Nominatim requires [osm2pgsql](https://osm2pgsql.org/) (>=1.8) for reading
+OSM data and [PostgreSQL](https://www.postgresql.org/) (>=9.6) to store the data.
+
+On Ubuntu (>=23.04) and Debian (when using backports), you can install them with:
+
+    sudo apt-get install osm2pgsql postgresql-postgis
+
+### Installation from pypi
+
+To install Nominatim from pypi, run:
+
+    pip install nominatim-db
+
+
+## Quick start
+
+First create a project directory for your new Nominatim database, which
+is the space for additional configuration and customization:
+
+    mkdir nominatim-project
+
+Make sure you run all nominatim commands from within the project directory:
+
+    cd nominatim-project
+
+Download an appropriate data extract, for example from
+[Geofabrik](https://download.geofabrik.de/) and import the file:
+
+    nominatim import --osm-file <downlaoded-osm-data.pbf>
+
+You will need to install the [`nominatim-api`](https://pypi.org/project/nominatim-api/)
+package to query the database.
+
+## Documentation
+
+A HTML version of the documentation can be found at
+https://nominatim.org/release-docs/latest/ .
+
+## License
 
 The source code is available under a GPLv3 license.