new nominatim --version CLI argument

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

diff --git a/docs/admin/Installation.md b/docs/admin/Installation.md
index 0258b8ff86290de9d6adf1907bfc808b4929db82..8c4c670b39dc901c25285b3cd030c5f850d5bec2 100644 (file)
--- a/docs/admin/Installation.md
+++ b/docs/admin/Installation.md
@@ -7,7 +7,6 @@ the following operating systems:
   * [Ubuntu 20.04](../appendix/Install-on-Ubuntu-20.md)
   * [Ubuntu 18.04](../appendix/Install-on-Ubuntu-18.md)
   * [CentOS 8](../appendix/Install-on-Centos-8.md)
-  * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
 
 These OS-specific instructions can also be found in executable form
 in the `vagrant/` directory.
@@ -24,6 +23,11 @@ and can't offer support.
 
 ### Software
 
+!!! Warning
+    For larger installations you **must have** PostgreSQL 11+ and Postgis 3+
+    otherwise import and queries will be slow to the point of being unusable.
+    Query performance has marked improvements with PostgrSQL 13+ and Postgis 3.2+.
+
 For compiling:
 
   * [cmake](https://cmake.org/)
@@ -38,8 +42,8 @@ For compiling:
 
 For running Nominatim:
 
-  * [PostgreSQL](https://www.postgresql.org) (9.5+ will work, 11+ strongly recommended)
-  * [PostGIS](https://postgis.net) (2.2+)
+  * [PostgreSQL](https://www.postgresql.org) (9.6+ will work, 11+ strongly recommended)
+  * [PostGIS](https://postgis.net) (2.2+ will work, 3.0+ strongly recommended)
   * [Python 3](https://www.python.org/) (3.6+)
   * [Psycopg2](https://www.psycopg.org) (2.7+)
   * [Python Dotenv](https://github.com/theskumar/python-dotenv)
@@ -126,7 +130,7 @@ If you want to install latest development version from github, make sure to
 also check out the osm2pgsql subproject:
 
 ```
-git clone --recursive git://github.com/openstreetmap/Nominatim.git
+git clone --recursive https://github.com/openstreetmap/Nominatim.git
 ```
 
 The development version does not include the country grid. Download it separately: