by > Someone please help me out. I am saving my projects using digital data
> backup tapes and the "tar" command. I know that I need to "fsf" to the
> end of the tape before I write to the tape, but this time I forgot.
> "Tarc {file name}" seems to create a 'new archive' on the tape, writing
> over the old information with the new information. Only 2 or 3 megs of
> old data was written over. I can handle the loss of that data, but I
> can't retrieve the rest of the data files. I really need that data.
> Does anyone know how to get over the barrier tar has created so I can
> get my most of the important stuff back.
> I am using a sgi and Unix. The data is not compressed in any way.
> Any intelligent suggestions will be greatly appreciated.
> Thank you,
> ArgusOne
Have you tried 'dd' on the tape. I am assumeing you want to retrieve the information from the beginning of the tape to the bit where you overwrote from. I thing a 'dd if=<device> of=data' may help. You can get 'dd' to ingore errors too, so that it reads on.
Hope that helps, email me if I have assummed wrong.
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Ash Vadgama