On Oct 7, 2011, at 2:24 PM, René Fournier wrote: > I've tried installation 8.4 and 9.0 on two different machines, and at the end can't start Postgresql. Here's the basic story: You can't change shmall & shmmax after boot. They must be set during startup. If you're on a recent version of OS X, you do this in /etc/sysctl.conf. Also the /usr/bin/postgres that you seen running is not where macports puts it and not the one you tried to start a couple of lines earlier, so you have something already installed on your system that is running a postgres instance. -- Scott Ribe scott_ribe@xxxxxxxxxxxxxxxx http://www.elevated-dev.com/ (303) 722-0567 voice -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general