Subject: bug#17149: closed (Re: bug#17149: shred - tape data)

From: [email-masked] (GNU bug Tracking System)
Date: Thu, 03 Apr 2014 06:31:04 +0000

Your bug report

#17149: shred - tape data

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
17149: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17149
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#17149: shred - tape data
From: Paul Eggert <[email-masked]>
To: Pádraig Brady <[email-masked]>
Cc: [email-masked], Rupert Russell <[email-masked]>
Date: Wed, 02 Apr 2014 23:29:51 -0700
List-Id: <debbugs-submit.debbugs.gnu.org>

Pádraig Brady wrote:
> The code looks good.

Thanks for the review.  I installed the patch and am marking this bug as 
done.

Subject: shred - tape data
From: Rupert Russell <[email-masked]>
To: "[email-masked]'" <[email-masked]>
Date: Mon, 31 Mar 2014 11:00:40 +0000
List-Id: <debbugs-submit.debbugs.gnu.org>

Hi,

shred -v /dev/st0    # where /dev/st0 is the drive in a multi tape carousel.

This starts well with.
Pass 1/4 (random) 15MiB
Pass 1/4 (random) 41MiB
Pass 1/4 (random) 70MiB
Pass 1/4 (random).....etc

But when the end of a 200GiB tape is reached in pass 1, 'shred' doesn't appear to trigger a rewind or maybe wait for the tape to be rewound before attempting to overwrite the data.

The final messages before and around the error are:-

Pass 1/4 (random) 190GiB/190GiB  100%

Pass 2/4 (random)

Error writing at offset 1288. No space left on device.

(The next line in my script then runs and unloads the tape.)

Is this not rewinding the tape a bug or my mis-use of the 'shred' command?

Thanks

Rupert Russell
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