>This error usually occurs when auth2 is already running.
>
>Do a ps -aux and see whether auth2 is listed before you try to start it.
>

No, its not that. Also, it occurs at the same point for building
  from scratch and for installation from rpms.
     Brian

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*  _/_/_/_/_/  _/_/_/  __/_/_/_/  B.A.Coghlan                *
*     _/     _/    _/  _/     _/  Dept.Computer Science      *
*    _/     _/        _/     _/   Trinity College Dublin     *
*   _/     _/        _/     _/    tel : (+3531).6081766      *
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* _/      _/_/_/  __/_/_/_/       email : coghlan_at_cs.tcd.ie  *
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