Postgresql 9.2 pg_dump version mismatch

You can either install PostgreSQL 9.2.1 in the pg_dump client machine or just copy the $PGHOME from the PostgreSQL server machine to the client machine. Note that there is no need to initdb a new cluster in the client machine. After you have finished installing the 9.2.1 software, remember to edit some environment variables in your .bash_profile file.