Installing Postgres w/RH9

I just installed RH9 on a new machine and installed postgres in the
installation process. I got the following error when trying to
start the postmaster so... I tried removing the postgres software
then reinstalling. rpm first said the software was not installed
then when I tried to reinstall rpm said it was already installed.

How do I solve this problem?

Thanks for your help!
Lynn

-bash-2.05b$ postmaster&
[1] 3139
-bash-2.05b$ FATAL: File /var/lib/pgsql/data/PG_VERSION is missing. This is not
a valid data directory.

[1]+ Exit 1 postmaster
-bash-2.05b$

[root(at)regulus root]# cd /var/lib/pgsql
[root(at)regulus pgsql]# for i in `ls postgresql*.rpm`; do rpm -e $i; done
error: package postgresql72-libs-1-3.i386.rpm is not installed
error: package postgresql-7.3.2-3.i386.rpm is not installed
error: package postgresql-contrib-7.3.2-3.i386.rpm is not installed
error: package postgresql-devel-7.3.2-3.i386.rpm is not installed
error: package postgresql-docs-7.3.2-3.i386.rpm is not installed
error: package postgresql-jdbc-7.3.2-3.i386.rpm is not installed
error: package postgresql-libs-7.3.2-3.i386.rpm is not installed
error: package postgresql-odbc-7.2.5-1.i386.rpm is not installed
error: package postgresql-pl-7.3.2-3.i386.rpm is not installed
error: package postgresql-python-7.3.2-3.i386.rpm is not installed
error: package postgresql-server-7.3.2-3.i386.rpm is not installed
error: package postgresql-tcl-7.3.2-3.i386.rpm is not installed
error: package postgresql-test-7.3.2-3.i386.rpm is not installed
[root(at)regulus pgsql]# for i in `ls postgresql*.rpm`; do rpm -i $i; done
warning: postgresql72-libs-1-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql72-libs-1-3 is already installed
warning: postgresql-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-7.3.2-3 is already installed
warning: postgresql-contrib-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID
db42a60e
package postgresql-contrib-7.3.2-3 is already installed
warning: postgresql-devel-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-devel-7.3.2-3 is already installed
warning: postgresql-docs-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-docs-7.3.2-3 is already installed
warning: postgresql-jdbc-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-jdbc-7.3.2-3 is already installed
warning: postgresql-libs-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-libs-7.3.2-3 is already installed
warning: postgresql-odbc-7.2.5-1.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-odbc-7.2.5-1 is already installed
warning: postgresql-pl-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-pl-7.3.2-3 is already installed
warning: postgresql-python-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID
db42a60e
package postgresql-python-7.3.2-3 is already installed
warning: postgresql-server-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID
db42a60e
package postgresql-server-7.3.2-3 is already installed
warning: postgresql-tcl-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-tcl-7.3.2-3 is already installed
warning: postgresql-test-7.3.2-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
package postgresql-test-7.3.2-3 is already installed
[root(at)regulus pgsql]#