Your installation comes with no geographic data loaded. You can either create new data using one of the editors (Potlatch 2, iD, JOSM etc) or by loading an OSM extract.
-* Use this [yet-to-be-written script](https://github.com/openstreetmap/openstreetmap-website/issues/282)
+After installing but before creating any users or data, import an extract with [Osmosis](http://wiki.openstreetmap.org/wiki/Osmosis) and the [``--write-apidb``](http://wiki.openstreetmap.org/wiki/Osmosis/Detailed_Usage#--write-apidb_.28--wd.29) task.
+
+```
+osmosis --read-pbf greater-london-latest.osm.pbf \
+ --write-apidb host="localhost" database="openstreetmap" \
+ user="openstreetmap" password="" validateSchemaVersion="no"
+```
+
+Loading an apidb database with Osmosis is about **twenty** times slower than loading the equivalent data with osm2pgsql into a rendering database. [``--log-progress``](http://wiki.openstreetmap.org/wiki/Osmosis/Detailed_Usage#--log-progress_.28--lp.29) may be desirable for status updates.
+
+To be able to edit the data you have loaded, you will need to use this [yet-to-be-written script](https://github.com/openstreetmap/openstreetmap-website/issues/282).
## Managing Users
* Your production database will also need the extensions and functions installed - see [INSTALL.md](INSTALL.md)
* The included version of the map call is quite slow and eats a lot of memory. You should consider using [CGIMap](https://github.com/zerebubuth/openstreetmap-cgimap) instead.
* The included version of the GPX importer is slow and/or completely inoperable. You should consider using [the high-speed GPX importer](http://git.openstreetmap.org/gpx-import.git/).
+* Make sure you precompile the production assets: `RAILS_ENV=production rake assets:precompile`
+* Make sure the web server user as well as the rails user can read, write and create directories in `tmp/`.