Hi,
I tried to reorganize a tablespace (oracle 10.2.0.3) an got the
warning:

Reorganization includes a table with a LONG column. To support
reorganization of
tables with LONG columns that are greater than 32KB the external
procedure
MGMT$REORG_MOVELONGCOMMAND must be configured properly. It has been
determined this external procedure is not currently configured as
expected

I googled and in the documentation E14225-03 (10.2.0.5) from Oracle I
have founded a description to solve the problem. I tried this way, but
without success.
problem: in the description is mentioned: $ORACLE_HOME/lib/libnmuc.so,
but there's not such file in my Oracle installation.

Any experience or ideas?
kind regards
Juerg

Identical problem in 10.2.0.4. I've just sent this to myOracle Support to get their take.