=?iso-8859-1?Q?Ren=E9_Fournier?= <renefournier@xxxxxxxxx> writes: > 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: No, you started it all right, because it's there in the ps output: > Fri Oct 07 14:18:20 -- Baby-Irmo :: ps -ax | grep "postgres" > 56 ?? 0:08.28 /usr/bin/postgres -D /var/pgsql -c listen_addresses= -c log_connections=on -c log_directory=/Library/Logs -c log_filename=PostgreSQL.log -c log_lock_waits=on -c log_statement=ddl -c log_line_prefix=%t -c logging_collector=on -c unix_socket_directory=/var/pgsql_socket -c unix_socket_group=_postgres -c unix_socket_permissions=0770 > 226 ?? 0:33.67 postgres: logger process > 253 ?? 1:41.76 postgres: writer process > 254 ?? 1:12.68 postgres: wal writer process > 255 ?? 0:23.39 postgres: autovacuum launcher process > 256 ?? 0:38.62 postgres: stats collector process The problem is with that command-line option "unix_socket_directory=/var/pgsql_socket" that your startup wrapper is evidently feeding to the postmaster. That means your postmaster is listening on a socket file in /var/pgsql_socket, which is not where your psql is expecting to find it: > Fri Oct 07 14:18:04 -- Baby-Irmo :: /opt/local/lib/postgresql90/bin/psql -U postgres > psql: 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"? Here, psql shows it's expecting to find the socket file in /tmp, which is the default location for PG socket files. While there are defensible reasons for putting the socket file somewhere other than /tmp, I'd have to say that an installation wrapper that thinks it should change that setting on the postmaster command line is just about as incompetent as it could possibly be. That's equivalent to changing the default port number and not bothering to tell the clients about it. You need to find a packaging built by somebody with more of a clue than that. It's not helping any that you seem to be using a psql that was built independently of the postmaster (why is the postmaster in /usr/bin when your psql is in /opt/local/lib/postgresql90?) ... but frankly, I cannot imagine a sane reason for setting unix_socket_directory with that mechanism, unless you're intentionally trying to make it hard to connect. (And those unix_socket_group and unix_socket_permissions settings are making it even harder ...) regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general