Re: Getting error while upgrading postgres from version 12 to 13

Both shows different versions as 13 shows version 13.10 and 12 shows 12.14

On Tue, 21 Mar, 2023, 8:09 pm Adrian Klaver, <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 3/21/23 03:29, shashidhar Reddy wrote:
> > Actually I was using the below command to check the compatibility, it
> > worked without any issue with 12.6 but it is not working with 1version
> 2.14
> > time /usr/lib/postgresql/13/bin/pg_upgrade --old-bindir
> > /usr/lib/postgresql/12/bin --new-bindir /usr/lib/postgresql/13/bin
> > --old-datadir /usr/pgdata/pg_data --new-datadir /usr/pgdata/pg_data2
> > --link --check
> >
> > I have used a different directory for postgres13 from postgres 12.
>
> The issue is not that they are the same directory it is:
>
> FATAL: database files are incompatible with server
> DETAIL: The data directory was initialized by PostgreSQL version 13
> , which is not compatible with this version 12.14 (Ubuntu
> 12.14-1.pgdg18.04+1)
>
> Check the value that is the PG_VERSION file in each data directory. It
> should be 12 in /usr/pgdata/pg_data and 13 in /usr/pgdata/pg_data2.
>
> >
> > On Mon, Mar 20, 2023 at 11:07 AM <abdulsayeed24(at)gmail(dot)com
> > <mailto:abdulsayeed24(at)gmail(dot)com>> wrote:
> >
> > Hello,
> >
> > As per error it seems you have initiated source data with PG13
> > binaries.
> >
> > Could you please connect to both source and target psql and share
> > out of select versions();
> >
> > Also share pg_upgrade complete command which you are using.
> >
> >
> >
> > Regards,
> > Abdul Sayeed
> >
> >
> >
> > Sent from myMail for iOS
> >
> >
> > Sunday, 19 March 2023 at 11:29 AM +0530 from
> > david(dot)g(dot)johnston(at)gmail(dot)com <mailto:david(dot)g(dot)johnston(at)gmail(dot)com>
> > <david(dot)g(dot)johnston(at)gmail(dot)com <mailto:david(dot)g(dot)johnston(at)gmail(dot)com>>:
> >
> > On Sat, Mar 18, 2023 at 7:27PM shashidhar Reddy
> > <shashidharreddy001(at)gmail(dot)com
> > <mailto:shashidharreddy001(at)gmail(dot)com>> wrote:
> >
> > Can someone please help me with this?
> >
> >
> >
> > You haven't given others enough information to help you.
> > Present to the fullest extent possible your current environment
> > and the commands you are running. Showing that psql itself
> > works on both running clusters would be a good start. Show
> > inputs, not just outputs those inputs creates.
> >
> > David J.
> >
> >
> >
> > --
> > Shashidhar
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>
>