I have installed the OpenGeo Suite community edition, version 3 and 4, onto Ubuntu Server 10.04 and 12.04 multiple times in the past, with virtually no problems. With the latest version of OpenGeo Suite (which includes PostGIS 2.1), I am able to install almost all of the components successfully, except PostGIS, on ubuntu 10.04 and 12.04. With earlier editions, PostGIS was installed as part of the full Opengeo installation process, but now, although PostGreSQL 9.3 is successfully installed, there are no PostGIS or opengeo database templates installed, nor are the spatial functions installed. According to apt-get, however, PostGIS 2.1 is installed.
I have also attempted to install OpenGeo v4 community edition on a local ubuntu server on a vm. Same issue... geoserver, geowebcache, the opengeo dashboard, PostGres 9.3, and PostGIS 2.1 all installed, but no opengeo or postgis databases, and no functions. I'm wondering if this is an issue with the Opengeo installation package?