PostgreSQL

[root@testdbsvr01~]# dnf install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
[root@testdbsvr01~]# dnf -qy module disable postgresql

[root@testdbsvr01~]# dnf install -y postgresql12-server

[root@testdbsvr01~]# dnf install -y postgresql12-contrib

[root@testdbsvr01~]# /usr/pgsql-12/bin/postgresql-12-setup initdb
Initializing database ... OK

[root@dbserver1 ~]# su postgres

bash-4.4$ psql -A -t -c "select version()"

PostgreSQL 12.12 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-10), 64-bit

This step should have been completed upon the installation of PostgreSQL, but if you haven’t, you can complete it with:

Install Repository

yum -y install https://download.postgresql.org/pub/repos/yum/12/redhat/rhel-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm

Now you are ready to install pgAdmin with:

Install Dependencies