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Re: Upgrade/Installation problem: Version 7.4.9 to version

From: Jeff Frost <jeff(at)frostconsultingllc(dot)com>
To: Andrew Edson <cheighlund(at)yahoo(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Upgrade/Installation problem: Version 7.4.9 to version
Date: 2007-01-17 20:45:17
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
You have to dump the original 7.4.9 version of the database and restore that 
into the 8.1.3 database server.

An example:

I have a server db1 which is running pg 7.4.9
I have a server db2 which is to replace db1 running pg 8.1.3

I would likely just do something like this from db2 (assuming no clients are 
writing to db1 while this is happening):

pg_dumpall -h db1 | psql -h db2

On Wed, 17 Jan 2007, Andrew Edson wrote:

> Please clear something up for me.  The database I'm trying to upgrade was/is empty; only the original installation was present, no tables.  Exactly what is it I'm supposed to be dumping?  If you mean making a copy of the original 8.1.3, that I've done before, but I'm unclear as to the meaning of what you're saying at the moment.  Please enlighten me.
> Jeff Frost <jeff(at)frostconsultingllc(dot)com> wrote:   Andrew,
> If you're moving between major versions, a dump/restore is necessary. The
> proper procedure is:
> 1) pg_dump the old database by using the new version of pg_dump (8.1.x)
> against the old db server (7.4.9 in your case)
> 2) stop the old database server (and possibly move/rename the old data dir)
> 3) initdb the new database server
> 4) edit postgresql.conf, etc
> 5) start the new database server
> 6) pg_restore the old database into the newly initialized data directory
> So, it sounds like you'll need to reinstall 7.4 and bring it back up, then use
> the 8.1.3 pg_dump to create a dump, then restore that into the new 8.1 server.
> ---------------------------------
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Jeff Frost, Owner 	<jeff(at)frostconsultingllc(dot)com>
Frost Consulting, LLC
Phone: 650-780-7908	FAX: 650-649-1954

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