allora il servizio è avviato pero se faccio

[root@localhost root]# service postgresql status
postmaster interrotto
[root@localhost root]#


quindi ho provato a dare il comando postmaster

[nicola@localhost root]$ postmaster
postmaster does not know where to find the database system data.
You must specify the directory that contains the database system
either by specifying the -D invocation option or by setting the
PGDATA environment variable.

[nicola@localhost root]$


ke fo?