Jailed postgres

I hope this is ok on this list.  I am currently using postgres 7.2 on my
host machine for some internal information.  

I recently created a jail for my apache server and want to install
postgres (7.3) in it.  I am finding that it is nearly impossible to get this
working.

$ initdb -D /usr/local/pgsql/data
The files belonging to this database system will be owned by user
"pgsql".
This user must also own the server process.

The database cluster will be initialized with locale C.

creating directory /usr/local/pgsql/data... ok
creating directory /usr/local/pgsql/data/base... ok
creating directory /usr/local/pgsql/data/global... ok
creating directory /usr/local/pgsql/data/pg_xlog... ok
creating directory /usr/local/pgsql/data/pg_clog... ok
creating template1 database in /usr/local/pgsql/data/base/1...
IpcSemaphoreCreate: semget(key=1, num=17, 03600) failed: Function not
implemented

initdb failed.
Removing /usr/local/pgsql/data.

I have googled and found that it appears to be a problem with;
http://lists.imeme.net/archives/imeme-users/2001-October/000473.html

I note that it is a bit out of date.  is this something that has been
resolved, is it the right answer even? 

I would appreciate any help with this as only running one postgres isn't
the solution I would like.  I use it for too many things for that to be
practicle.  

Thank you,
Paul
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