Re: upgrade from 13 to 16

From: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
To: listy <listy(at)localities(dot)work>, Pgsql-admin <pgsql-admin(at)lists(dot)postgresql(dot)org>
Subject: Re: upgrade from 13 to 16
Date: 2026-03-02 14:34:30
Message-ID: f6da599d9e2736da00a149d36b5f65e934ad34ed.camel@cybertec.at
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On Mon, 2026-03-02 at 13:43 +0100, listy wrote:
> Is upgrade from ver. 13 to 16 possible?

Yes.

> -> $ sudo -u postgres pg_upgrade -D /var/lib/pgsql/data/
> You must identify the directory where the old cluster binaries reside.Please use the -b command-line option or the PGBINOLD environment variable.
> Failure, exiting
>
> Or is a restoration from a backup the only way?
>
> If you cannot be bothered to read the documentation for pg_upgrade, then
dump and restore may be the only way.

Yours,
Laurenz Albe

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