Postgres-9.3.4 was built directly from the web site download source. It's installed in /usr/lib/postgresql/9.3.4/. Postgresql-9.4.5 was built from the SlackBuilds.org script and installed in /usr/lib/postgresql/9.4/. The bin/ subdirectory of the 9.4 version has all the excutable files, but that of the 9.3.4 version seens to contain only a few postgis files. When I run psql with a database name I see this: $ psql crm psql (9.4.5, server 9.3.4) Type "help" for help. crm=# so it appears to me that 9.4.5 is running while using the 9.3.4 data directory. I want to move all data from 9.3.4 to 9.4.5. Data are in /var/lib/pgsql/9.3.4/data/ (405 M) and I want to move them to the empty (only 4.0 K) /var/lib/pgsql/9.4/data/. Reading the pg_upgrade man page tells me I need the old bin/ and data/ directories as well as the new ones. I've no idea where the 9.3.4 bin directory now is; /usr/bin/postgres is a soft link to /usr/lib/postgresql/9.4/bin/postgres. This suggests that I need to use pg_dumpall, then read in the file using psql with the 9.4.5 version. I've dumped all databases to a .sql file and am unsure how to proceed. Clue stick needed, Rich -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general