add documentation for public interface of SearchDescription

[nominatim.git] / docs / admin / Installation.md

diff --git a/docs/admin/Installation.md b/docs/admin/Installation.md
index b9705eb5da1aa8bf1e59ac0e8337c07a61692394..76af39c6e0a0b102547dedeb23343e57aa7c42ee 100644 (file)
--- a/docs/admin/Installation.md
+++ b/docs/admin/Installation.md
@@ -30,23 +30,31 @@ For compiling:
   * [proj](https://proj.org/)
   * [bzip2](http://www.bzip.org/)
   * [zlib](https://www.zlib.net/)
+  * [ICU](http://site.icu-project.org/)
   * [Boost libraries](https://www.boost.org/), including system and filesystem
   * PostgreSQL client libraries
   * a recent C++ compiler (gcc 5+ or Clang 3.8+)
 
 For running Nominatim:
 
-  * [PostgreSQL](https://www.postgresql.org) (9.3+)
-  * [PostGIS](https://postgis.org) (2.2+)
-  * [Python 3](https://www.python.org/)
-  * [Psycopg2](https://initd.org/psycopg)
+  * [PostgreSQL](https://www.postgresql.org) (9.3+ will work, 11+ strongly recommended)
+  * [PostGIS](https://postgis.net) (2.2+)
+  * [Python 3](https://www.python.org/) (3.6+)
+  * [Psycopg2](https://www.psycopg.org) (2.7+)
+  * [Python Dotenv](https://github.com/theskumar/python-dotenv)
+  * [psutil](https://github.com/giampaolo/psutil)
+  * [Jinja2](https://palletsprojects.com/p/jinja/)
+  * [PyICU](https://pypi.org/project/PyICU/)
+  * [PyYaml](https://pyyaml.org/) (5.1+)
+  * [datrie](https://github.com/pytries/datrie)
   * [PHP](https://php.net) (7.0 or later)
   * PHP-pgsql
   * PHP-intl (bundled with PHP)
+  * PHP-cgi (for running queries from the command line)
 
 For running continuous updates:
 
-  * [pyosmium](https://osmcode.org/pyosmium/) (with Python 3)
+  * [pyosmium](https://osmcode.org/pyosmium/)
 
 For dependencies for running tests and building documentation, see
 the [Development section](../develop/Development-Environment.md).
@@ -57,12 +65,12 @@ A minimum of 2GB of RAM is required or installation will fail. For a full
 planet import 64GB of RAM or more are strongly recommended. Do not report
 out of memory problems if you have less than 64GB RAM.
 
-For a full planet install you will need at least 800GB of hard disk space
-(take into account that the OSM database is growing fast). SSD disks
-will help considerably to speed up import and queries.
+For a full planet install you will need at least 900GB of hard disk space.
+Take into account that the OSM database is growing fast.
+Fast disks are essential. Using NVME disks is recommended.
 
 Even on a well configured machine the import of a full planet takes
-at least 2 days. Without SSDs 7-8 days are more realistic.
+around 2 days. On traditional spinning disks, 7-8 days are more realistic.
 
 ## Tuning the PostgreSQL database
 
@@ -142,6 +150,16 @@ build at the same level as the Nominatim source directory run:
 ```
 cmake ../Nominatim
 make
+sudo make install
+```
+
+Nominatim installs itself into `/usr/local` per default. To choose a different
+installation directory add `-DCMAKE_INSTALL_PREFIX=<install root>` to the
+cmake command. Make sure that the `bin` directory is available in your path
+in that case, e.g.
+
+```
+export PATH=<install root>/bin:$PATH
 ```
 
 Now continue with [importing the database](Import.md).