Merge pull request #2836 from mtmail/tiger2022

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

diff --git a/docs/admin/Installation.md b/docs/admin/Installation.md
index d7d35b7e218bf6259d58704d582675138a099bbc..bcc4524da6c350784eaa52445ee2dc3b7a93e575 100644 (file)
--- a/docs/admin/Installation.md
+++ b/docs/admin/Installation.md
@@ -4,9 +4,9 @@ This page contains generic installation instructions for Nominatim and its
 prerequisites. There are also step-by-step instructions available for
 the following operating systems:
 
+  * [Ubuntu 22.04](../appendix/Install-on-Ubuntu-22.md)
   * [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)
 
 These OS-specific instructions can also be found in executable form
 in the `vagrant/` directory.
@@ -24,9 +24,9 @@ and can't offer support.
 ### Software
 
 !!! Warning
-    For larger installations you **must have** PostgreSQL 11+ and Postgis 3+
+    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+.
+    Query performance has marked improvements with PostgreSQL 13+ and PostGIS 3.2+.
 
 For compiling:
 
@@ -45,7 +45,6 @@ For running Nominatim:
   * [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+)
-  * [Python Typing Extensions](https://github.com/python/typing_extensions)
   * [Psycopg2](https://www.psycopg.org) (2.7+)
   * [Python Dotenv](https://github.com/theskumar/python-dotenv)
   * [psutil](https://github.com/giampaolo/psutil)
@@ -68,10 +67,10 @@ the [Development section](../develop/Development-Environment.md).
 ### Hardware
 
 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
+planet import 128GB 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 900GB of hard disk space.
+For a full planet install you will need at least 1TB of hard disk space.
 Take into account that the OSM database is growing fast.
 Fast disks are essential. Using NVME disks is recommended.
 
@@ -113,7 +112,7 @@ For the initial import, you should also set:
     fsync = off
     full_page_writes = off
 
-Don't forget to reenable them after the initial import or you risk database
+Don't forget to re-enable them after the initial import or you risk database
 corruption.