As superuser, run the following command:

$ su -
Password:******
# cp -r /opt/fsepv<x>server64/OSS/pg_repack/* /opt/fsepv<x>server64

Execute CREATE EXTENSION for the database that will use this feature.
Use the psql command to connect to the "postgres" database.

postgres=# CREATE EXTENSION pg_repack;
CREATE EXTENSION

Execute DROP EXTENSION for the database that will use this feature.
Use the psql command to connect to the "postgres" database.

postgres=# DROP EXTENSION pg_repack CASCADE;
DROP EXTENSION

As superuser, run the following command:

$ su -
Password:******
# rm -rf /opt/fsepv<x>server64/filesCopiedDuringSetup

# find /opt/fsepv<x>server64/OSS/pg_repack