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The two referenced links did not seem to provide the necessary
specifics. I do not know how to corrupt a block using dd and the man
pages on our system do not seem to have the necessary information in
them either. I suspect the system manuals have more detail.
But any binary editor could be used to corrupt a block providing the Oracle file owner ID is used to perform the edit.
Also a program or script could be written in any computer language that supports randon IO to a file opened in binary mode to read and write data at a specified offset.
HTH -- Mark D Powell -- Received on Fri Nov 11 2005 - 09:23:27 CST