On Tue, 24 Oct 2000, Bernhard R. Erdmann wrote:

>Paul Tomblin wrote:
[snip]
>> reformat?  I don't have a bulk eraser.  I tried using "mt setdensity
>> DDS-2", but it didn't take.
>
>mt weof 5
>or
>mt erase
>or
>dd if=/dev/zero bs=32k of=$TAPE

In my own experience, using only a dd won't change the tape's format.  My
drives all see and use the original drive blocksize and compressions
setting and use it until I overwrite it with a weof.  I don't know if
the erase will do it or not.  I know when my drive is shoeshining on a 
tape header, an erase won't do it.  I'm certain the dd won't...

(4mm DAT of various vintanges, EXB-8500, EXB-8505).

(Did you mean for the dd to overwrite the whole tape?  Usually just
whacking the header is sufficient.  If not, add a count=NN to it.)

-- 
Joi Ellis
[EMAIL PROTECTED], http://www.visi.com/~gyles19/

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