Ubuntu doesn't like PostgreSQL 9.2 because it breaks other packages (see explanation in stackoverflow). We need to use PostgreSQL own apt repository:
prompt$ sudo sh -c "echo 'deb http://apt.postgresql.org/pub/repos/apt/ squeeze-pgdg main' > /etc/apt/sources.list.d/pgdg.list" prompt$ wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add - OK prompt$ prompt$ sudo apt-get update prompt$ sudo apt-get install postgresql
That's all 🙂