Обсуждение: CreateUser error

I am trying to get PostgreSQL 8.1.4 up and running on fedora core 5.  Upon trying to add a user (I had to use the createuser command) I recieved this error: 

[root@pc-00076 postgresql-8.1.4]# createuser postgres
Shall the new role be a superuser? (y/n) y
createuser: could not connect to database postgres: could not connect to server: No such file or directory
        Is the server running locally and accepting
        connections on Unix domain socket "/tmp/.s.PGSQL.5432"?

I have read some other posts about SElinux having something to do with this error.  However, I do not know what that is, or how to disable it.  Can someone please give me some help?? thanks

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jonathan harvey <jonathanharv@yahoo.com> writes:
> I am trying to get PostgreSQL 8.1.4 up and running on fedora core 5.

Have you started the service?  If "ps auxww | grep postgres" doesn't
show some postgres-owned processes, you need

    sudo /sbin/service postgresql start

You probably also want

    sudo /sbin/chkconfig postgresql on

but that just fixes things so that future reboots will automatically
start the database, it doesn't make it run now.

            regards, tom lane