I want to install FME Server 2021.2.2 on CentOS 7.9 offline.
When I run the installer, after answering all the questions and waiting 5 minutes, i get an error saying : "no package postgresql11-server available".
I tried to install the rpm of postgresql11-server, postgresql11 and postgresql11-lib but now i have a second error, more instantany, saying "Postgres is already installed on this system. If you would like to use the existing Postgres with FME Server, see https://docs.safe.com/fme2021.2/html/FME_Server_Documentation/AdminGuide/Configure-FME-Server-Database-on-Separate_Server-2-Tier.htm
Otherwise please uninstall postgres and rerun this installation".
Could you please help me to resolve this problem ?