GNU bug report logs - #15680
dd: suggest iflag=fullblock ... but only if count > 1

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Package: coreutils;

Reported by: Bernhard Voelker <mail <at> bernhard-voelker.de>

Date: Tue, 22 Oct 2013 06:49:02 UTC

Severity: normal

Tags: notabug

Done: Pádraig Brady <P <at> draigBrady.com>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Bernhard Voelker <mail <at> bernhard-voelker.de>
To: bug-coreutils <at> gnu.org
Subject: dd: suggest iflag=fullblock ... but only if count > 1
Date: Tue, 22 Oct 2013 08:47:50 +0200

dd(1) issues a nice warning about short reads ...

  src/dd if=/dev/random of=sample bs=1000 count=2
  src/dd: warning: partial read (128 bytes); suggest iflag=fullblock
  0+2 records in
  0+2 records out
  256 bytes (256 B) copied, 0.000423371 s, 605 kB/s

... but only if count was > 1:

  src/dd if=/dev/random of=sample bs=1000 count=1
  0+1 records in
  0+1 records out
  128 bytes (128 B) copied, 0.000270231 s, 474 kB/s

Is this by intension or an off-by-one?
I'd like to provide a patch in the latter case.

Have a nice day,
Berny
This bug report was last modified 11 years and 273 days ago.

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