Upgrading from 9.2.15 to 9.4.20

Im trying to upgrade PostgreSQL from 9.2.15 to 9.4.20
with this :
/usr/pgsql-9.4/bin/pg_upgrade --old-bindir=/usr/bin
--new-bindir=/usr/pgsql-9.4/bin --old-datadir=/var/lib/pgsql/ data
--new-datadir=/var/lib/pgsql/9.4/data

Can anybody help me with this? I also try -p port parameter not helped. Both
databse instances are shut down.

that give me this output :

Performing Consistency Checks
-----------------------------
Checking cluster versions ok

*failure*
Consult the last few lines of "pg_upgrade_server.log" for
the probable cause of the failure.

connection to database failed: could not connect to server: No such file or
directory
Is the server running locally and accepting
connections on Unix domain socket "/run/postgresql/.s.PGSQL.50432"?

could not connect to old postmaster started with the command:
"/usr/bin/pg_ctl" -w -l "pg_upgrade_server.log" -D "/var/lib/pgsql/data" -o
"-p 50432 -b -c listen_addresses='' -c unix_so cket_permissions=0700 -c
unix_socket_directory='/run/postgresql'" start
Failure, exiting

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