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Date:	Sat, 8 Dec 2001 11:09:24 +0100
From:	Corinna Vinschen <cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: New Cygwin DLL 1.3.6 release & tapes ??
Message-ID:	<20011208110924.U740@cygbert.vinschen.de>
Mail-Followup-To:	cygwin AT cygwin DOT com
References:	<LPBBLLAHBIFKJPFJLMNJCEJJCEAA DOT Manfred AT TR1 DOT de>
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In-Reply-To:	<LPBBLLAHBIFKJPFJLMNJCEJJCEAA.Manfred@TR1.de>; from Manfred@TR1.de on Fri, Dec 07, 2001 at 10:43:02PM +0100

On Fri, Dec 07, 2001 at 10:43:02PM +0100, Manfred Drechsel wrote:
> hi chris,
> 
> first, many thanks for cygwin. i could not survive
> without it.
> 
> sorry to send you a mail directly.
> 
> am i doing something wrong or why does tar not
> work on my dat-tape?
> 
> here's more info:
> 
> ----------------------------------------
> # mount
> ...
> \\.\tape0 on /dev/st0 type system (binmode)

  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  That mount point is unnecessary since 1.3.3, see Users Guide:
  http://cygwin.com/cygwin-ug-net/using-specialnames.html#AEN590

> #
> # mt -f /dev/tape rewind
       ^^^^^^^^^^^^
       unnecessary since /dev/tape is the default device name for
       mt version >= 2.0.

> # tar -tf /dev/tape
> tar: /dev/tape: Cannot read: Permission denied
> tar: At beginning of tape, quitting now
> tar: Error is not recoverable: exiting now

Probably wrong blocksize.  See if the blocksize is set correctly:

$ mt status 2
tape capacity    :  1953251 KB          remaining        :  1953251 KB
current block    :        0             write protected  :       no             datcompression   :       on
min block size   :        1             max block size   :    65536
def block size   :    16384             cur block size   :      512
report setmarks  :       on

Then try using the correct fixed blocksize if you know it:

  mt selblk 5120

Or variable blocksize for reading if you don't know the blocksize
used for writing the tape:

  mt setblk 0

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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