repackaged rpm (relocated on non default path) when installed again gives cpio archive error : cpio Archive file not in header

[rishi kumar <mail2rishi gmail com>]

Hi,
I am encounterring a problem with repackaged rpm on rpm version 4.2.1
on platform ES3.0 . I need to upgrade an rpm package but I also keep
the previous installation by doing an upgrade with --repakage flag. The
repackaging is successful but the problem is that the repackaged rpm
when installed ( using --nomd5 --nodigest --nosignature flags ) gives
me an error

  
1:scs                   
########################################### [100%]
error: unpacking of archive failed on file ./opt/precam/p3/bin/prenum :cpio: Archive file not in header

I do not get this error on any other platform say RH 9.0 . Is this a
known problem or am I doing something wrong. Or do I need any other
flags to ignore any checksum mismatches.

Cheers,
Rishi