postgresql problem in woody and sid

[marco <marco4linux@earthlink.net>]

I cannot get postgresql to install :

Here is the error message:

Now installing the PostgreSQL database files in /var/lib/postgres/data
su - postgres -c cd /var/lib/postgres; . ./.bash_profile; LANG=C initdb 
--encoding UNICODE --pgdata /var/lib/postgres/data
-su: initdb: command not found
dpkg: error processing postgresql (--configure):
 subprocess post-installation script returned error exit status 127
Errors were encountered while processing:
 postgresql
E: Sub-process /usr/bin/dpkg returned an error code (1)


I played around with the .profile and .bash_profile in /var/lib/postgres 
which were both not exporting the PATH but this did not help.

any help is appreciated.

--Marco