sound like you have a postmaster.pid in your PGDATA directory. Rename file postmaster.pid and launch the postgresql again --- On Sat, 7/5/08, Scott Frankel <frankel@xxxxxxxxxxxxx> wrote: > From: Scott Frankel <frankel@xxxxxxxxxxxxx> > Subject: [GENERAL] roll back to 8.1 for PyQt driver work-around > To: "PostgreSQL List" <pgsql-general@xxxxxxxxxxxxxx> > Date: Saturday, July 5, 2008, 11:40 PM > Hello, I just signed on the list. > > Any suggestions for how best to launch one of two different > versions > of pg installed on the same machine? > > I have both 8.3 and 8.1 installed on a MacBookPro (OS X > 10.5.2). I > stopped the 8.3 postmaster using pg_ctl in order to roll > back to 8.1. > Problem is, now I can't seem to start the server using > either version. > > When I launch 8.1 with pg_ctl, it yields a "postmaster > starting" > message; but then a status check shows that the server is > not > running. Issuing the same commands for 8.3, I get similar > results. > > eg: > > [tiento:~] postgres% /opt/local/lib/postgresql81/bin/pg_ctl > start -D / > Library/PostgreSQL8/data -l /Users/Shared/pgLog/pgLog.txt > postmaster starting > > [tiento:~] postgres% /opt/local/lib/postgresql81/bin/pg_ctl > status -D / > Library/PostgreSQL8/data > pg_ctl: neither postmaster nor postgres running > > > I'm trying to roll back to version 8.1 as I've run > into a bug in Qt's > QPSQL driver. I'm able to create tables and add rows > of data to them; > but my model.select() statements all fail. The "This > version of > PostgreSQL is not supported and may not work" message > is ominous ;) > > Thanks in advance! > Scott > > > > > > Scott Frankel > President/VFX Supervisor > Circle-S Studios > 510-339-7477 (o) > 510-332-2990 (c) > > > > > > -- > Sent via pgsql-general mailing list > (pgsql-general@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general
