Re: Upgrade/Installation problem: Version 7.4.9 to version

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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