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@[EMAIL PROTECTED]
> wrote:
> From: Scott Frankel <frankel@[EMAIL PROTECTED]
>
> Subject: [GENERAL] roll back to 8.1 for PyQt driver work-around
> To: "PostgreSQL List" <pgsql-general@[EMAIL PROTECTED]
>
> 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 sup****ted 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)
>
>
>
>
>
> --
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)
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