Re: pg_upgrade 13.6 to 15.1?

On 1/15/23 11:27, pf@pfortin.com wrote:
> Hi,
> 
> I'm fairly new to postgres; but have databases with about 2TB of data.
> 
> Trying to upgrade from 13.6 to 15.1, pg_upgrade complains with:
> [postgres@pf ~]$ /usr/bin/pg_upgrade -b /usr/local/pgsql/bin -B /usr/bin \
>    -d /mnt/db/var/lib/pgsql/data -D /mnt/work/var/lib/pgsql/data \
>    -s /tmp -U postgres

> Nothing I read implies the need to upgrade to 14.x first...  Right?

In addition to Tom Lane's comments I would recommend reading this:

https://www.postgresql.org/docs/current/pgupgrade.html

multiple times. There is a lot going on there and it will take a couple 
of reads at least to begin to understand it all.

> 
> Thanks
> Pierre
> 
> 
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com