Read Before Installing or Updating HP-UX 11i v2, December 2005

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If you chose to remove either HP Servicecontrol Manager or
HP Systems Insight Manager, you must execute the
following command to remove subdirectories that were used
in the product:
rm -fr /opt/mx /etc/opt/mx
If these subdirectories are not removed, you might encounter
database errors when trying to run mxinitconfig -a when
installing HP SIM 5.0.