The Postgres installer cannot run an autogenerated responsefile, It giving the Warning message the PORT 5432 is already in use ,where as this the default postgress SQL port .
The issue found in APM 10.8 based version , and postgress has been installed mannullly as it is no more coming along with APM product
Release : 10.8
OS : x86_64 x86_64 GNU/Linux
We have identified that postgress admin user has not created automatically while running the installer script.So have created mannually and modified in pg_hba.conf file .
1:Use PSQL to create a user with a password
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CREATE USER admin WITH PASSWORD 'yourpass';
2: In pg_hba.conf file
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The changes to pg_hba.conf file to allow from access to DB from all IPs
3: The Grant priviledge will be taken care by the installer.
The change that we did for creating admin user will be handled by the installer in upcoming release of APM .