Mailing-List:	contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT sources DOT redhat DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT sources DOT redhat DOT com>
List-Help:	<mailto:cygwin-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender:	cygwin-owner AT sources DOT redhat DOT com
Delivered-To:	mailing list cygwin AT sources DOT redhat DOT com
From:	Mark Himsley <mark AT mdsh DOT com>
To:	Corinna Vinschen <cygwin AT cygwin DOT com>
Subject:	Re: /dev/nst0: Permission denied
Date:	Wed, 05 Sep 2001 17:37:31 +0100
Message-ID:	<t7kcpt0bjvv8eaovcofj4i5ncgrles7gds@4ax.com>
References:	<4s3cpt4g1vvlqvodqfrhmqkp5p1spelu80 AT 4ax DOT com> <20010905141409 DOT H30380 AT cygbert DOT vinschen DOT de>
In-Reply-To:	<20010905141409.H30380@cygbert.vinschen.de>
X-Mailer:	Forte Agent 1.8/32.548
MIME-Version:	1.0

Hi Corinna,

Sorry to have taken so long to come back to you, I was trying to get some
work done...

On Wed, 5 Sep 2001 14:14:09 +0200 you wrote:

>> $ cat /dev/nst0
>> cat: /dev/nst0: Permission denied
>> 
>> Why is this, and how can I read the DAT tape.
>
>Wrong blocksize. Call `mt -f /dev/nst0 status 2' with tape in
>drive.  It will show you the blocksize currently set in the
>NT tape device driver (often 512), e.g.:

Interesting thought. I was sure that I *had* done 'mt -f /dev/nst0 setblk
0' before I started, which was what I did just before I wrote the DAT in
Linux, but obviously I hadn't. You have solved that problem :-)

One other point. I have managed to completely lock-up Cygwin, requiring a
reboot to free up the DAT drive, by trying to `cat` a DAT tape which was
actually a `tar`. On Linux I get the error:

linux # cat /dev/nst0
cat: /dev/nst0: Cannot allocate memory

but on Cygwin `cat` hangs for ever and Cygwin has to be killed.
If I restart Cygwin and try to do anything with the DAT drive before
rebooting I get errors like:

Win2K $ mt -f /dev/nst0 status
TapeStatus: 6: The handle is invalid.

mt: Error reporting Tape status


Thanks for your help :-)

--
Mark Himsley
In Acton

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -