Elgg:The requested URL elgg html action systemsettings install was not found on this server

If you have problem to install Elgg v1.0 and the following message persists

The requested URL /elgg/html/action/systemsettings/install was not found on this server

and already checked for mod_rewrite.

The problem must be that you forgot to set "AllowOverride All" for Apache, to allow use .htaccess from Elgg directory.

To help you create a file /etc/httpd/conf.d/elgg.conf with this instructions

 AllowOverride All Options None Order allow,deny Allow from all 

So restart Elgg.