On Mon, Apr 16, 2018 at 12:33 PM, Akshay Ballarpure < akshay.ballarp...@tcs.com> wrote:
> Hello, > I need help in using postgresql 8.4 data in postgres 9.4 version. Do I > need to run any tool to achieve the same? > > Steps i followed is ran postgresql 8.4 and 9.4, copied data from 8.4 > instance to 9.4 and try to start postgresql 9.4 but no luck, getting below > error. > > [root@ms-esmon esm-data]# su - postgres -c > "/opt/rh/rh-postgresql94/root/usr/bin/postgres > -D /var/ericsson/esm-data/postgresql-data/ 2>&1 &" > [root@ms-esmon esm-data]# LOG: skipping missing configuration file > "/var/ericsson/esm-data/postgresql-data/postgresql.auto.conf" > 2018-04-16 06:52:01.546 GMT *FATAL*: database files are incompatible > with server > 2018-04-16 06:52:01.546 GMT *DETAIL*: The data directory was > initialized by PostgreSQL version 8.4, which is not compatible with this > version 9.4.9. > > > With Best Regards > Akshay > Ericsson OSS MON > Tata Consultancy Services > Mailto: akshay.ballarp...@tcs.com > Website: http://www.tcs.com You cannot simply copy data between major versions. Look into pg_upgrade utility to upgrade your database, or you could use pg_dump/pg_restore to migrate between major versions. Amitabh
