Kui puhas install on tehtud tuleb paigaldada postgresql andmebaas ja postgis -i laiendus.
urpmi postgresql8.4 postgresql8.4-contrib postgis subversion task-c++-devel lib64xml2-devel lib64geos-devel postgresql8.4-devel lib64bzip2-devel lib64proj-devel lib64boost-devel lib64png-devel lib64jpeg-devel lib64tiff-devel lib64curl-devel cairo-devel lib64cairomm1.0-devel pycairo-devel lib64ltdl-devel
Peale postgre paigaldamist tuleks see ka käivitada, mille jooksul luuakse default andmebaasid ja configuratsiooni fail.