I created a VM and installed RHEL. PostgreSQL 8.1.22 was preinstalled on RHEL but I want to install 9.1. How do I go about doing this? Do I need to run through and configure the 8.1.22 or can I just upgrade to 9.1? I am new to Linux and Postgre so I'm not sure what the best way to configure. I have read through the installation notes on Postgre site but it is not clear to me if I need to configure the 8.1.22 first then install the 9.1. I do not have any data in 8.1.22.
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