See comment on CPLABS-2764.

 
1. Please take look at the attachment, for the part of 'Installing PostgreSQL as an external database', the command is wrong.

it's display as 'dnf install postgresql-server postgresql-evr postgresql-contrib', it should be 'dnf install postgresql-server postgresql-contrib'

2. for the  initialize PostgreSQL. The command show as 'postgresql-setup initdb', this command has been transformed as 'postgresql-setup --initdb' on rhel9.