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Re: Narrowing down problem source

From "Thomas Schmitt" <scdbackup@gmx.net>
Newsgroups linux.debian.user
Subject Re: Narrowing down problem source
Date 2015-09-21 08:20 +0200
Message-ID <qb2Cd-6Ly-5@gated-at.bofh.it> (permalink)
References <qaTpg-1Zo-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi,

Richard Owlett wrote:
> Block count: 1941504
> ...
> 1941504+0 records in
> 1941504+0 records out

This is ok.

> Block count: 2284052
> ...
> 1941504+0 records in
> 1941504+0 records out

This is not ok.

The variable "block" was computed correctly, but program "dd"
did not retrieve enough blocks.
(I wonder whether it's a bug or a feature that it does not
 report an error. At least this behavior is reproducible.)

It seems that the system does not tell "dd" the block count of
the new DVD but the count of the previous one.

What do you get from this command

  echo "Device block count: $(expr $(cat /sys/class/block/sr0/size) / 4)"

inserted in the script after the line
  echo "Byte count: $(expr $blocks '*' 2048)"

(The /sys filesystem is an inexhaustible source of wonders.)


Have a nice day :)

Thomas

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Thread

Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 15:10 +0200
  Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 15:20 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 16:10 +0200
      Re: Extracting directories from an ISO image, command line tool? The Wanderer <wanderer@fastmail.fm> - 2015-09-10 16:30 +0200
        Re: Extracting directories from an ISO image, command line tool? The Wanderer <wanderer@fastmail.fm> - 2015-09-10 16:30 +0200
      Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 17:00 +0200
        Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 17:20 +0200
          Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 18:20 +0200
            Re: Extracting directories from an ISO image, command line tool? Hans <hans.ullrich@loop.de> - 2015-09-10 18:30 +0200
              Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 20:50 +0200
                Re: Extracting directories from an ISO image, command line tool? Hans <hans.ullrich@loop.de> - 2015-09-10 21:10 +0200
                Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 21:30 +0200
                Re: Extracting directories from an ISO image, command line tool? Curt <curty@free.fr> - 2015-09-10 22:10 +0200
                Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 23:00 +0200
                Re: Extracting directories from an ISO image, command line tool? Lisi Reisz <lisi.reisz@gmail.com> - 2015-09-11 15:40 +0200
                Re: Extracting directories from an ISO image, command line tool? Chris Bannister <cbannister@slingshot.co.nz> - 2015-09-11 16:50 +0200
          Re: Extracting directories from an ISO image, command line tool? Lisi Reisz <lisi.reisz@gmail.com> - 2015-09-11 15:40 +0200
  Re: Extracting directories from an ISO image, command line tool? The Wanderer <wanderer@fastmail.fm> - 2015-09-10 15:30 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 16:20 +0200
      Re: Extracting directories from an ISO image, command line tool? The Wanderer <wanderer@fastmail.fm> - 2015-09-10 16:30 +0200
        Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 17:40 +0200
          Re: Extracting directories from an ISO image, command line tool? The Wanderer <wanderer@fastmail.fm> - 2015-09-10 17:50 +0200
      Re: Extracting directories from an ISO image, command line tool? Eduard Bloch <edi@gmx.de> - 2015-09-10 16:30 +0200
  Re: Extracting directories from an ISO image, command line tool? Darac Marjal <mailinglist@darac.org.uk> - 2015-09-10 15:30 +0200
    Re: Extracting directories from an ISO image, command line tool? The Wanderer <wanderer@fastmail.fm> - 2015-09-10 16:30 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 16:30 +0200
  Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-10 16:40 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-10 17:30 +0200
    Re: Extracting directories from an ISO image, command line tool? David Wright <deblis@lionunicorn.co.uk> - 2015-09-10 22:50 +0200
      Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-11 10:30 +0200
        Re: Extracting directories from an ISO image, command line tool? David Wright <deblis@lionunicorn.co.uk> - 2015-09-11 18:50 +0200
          Re: Extracting directories from an ISO image, command line tool? Curt <curty@free.fr> - 2015-09-12 10:10 +0200
          Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-12 11:00 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-13 23:20 +0200
      Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-14 00:40 +0200
        Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-14 03:00 +0200
          Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-14 10:20 +0200
            Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-14 16:40 +0200
              Narrowing down problem source - was [Re: Extracting directories from  an ISO image, command line tool?] Richard Owlett <rowlett@cloud85.net> - 2015-09-17 17:00 +0200
                Re: Narrowing down problem source - was [Re: Extracting directories from  an ISO image, command line tool?] Steve McIntyre <steve@einval.com> - 2015-09-17 18:10 +0200
                Re: Narrowing down problem source - was [Re: Extracting directories  from an ISO image, command line tool?] Richard Owlett <rowlett@cloud85.net> - 2015-09-18 13:20 +0200
                Re: Narrowing down problem source "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-17 19:20 +0200
                Re: Narrowing down problem source Richard Owlett <rowlett@cloud85.net> - 2015-09-18 14:40 +0200
                Re: Narrowing down problem source "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-18 15:00 +0200
                Re: Narrowing down problem source Richard Owlett <rowlett@cloud85.net> - 2015-09-18 15:40 +0200
                Re: Narrowing down problem source "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-18 15:50 +0200
                Re: Narrowing down problem source Richard Owlett <rowlett@cloud85.net> - 2015-09-20 22:30 +0200
                Re: Narrowing down problem source "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-21 08:20 +0200
                Re: Narrowing down problem source Richard Owlett <rowlett@cloud85.net> - 2015-09-21 19:00 +0200
                Re: Narrowing down problem source "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-21 20:30 +0200
  Re: Extracting directories from an ISO image, command line tool? David Wright <deblis@lionunicorn.co.uk> - 2015-09-10 17:10 +0200
    Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-10 19:40 +0200
  Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-11 14:10 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-11 17:40 +0200
      Re: Extracting directories from an ISO image, command line tool? Brian <ad44@cityscape.co.uk> - 2015-09-11 18:50 +0200
  Re: Extracting directories from an ISO image, command line tool? Stuart Longland <stuartl@longlandclan.id.au> - 2015-09-17 22:50 +0200
    Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-18 14:00 +0200
      Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-18 14:30 +0200
        Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-18 15:50 +0200
      Re: Extracting directories from an ISO image, command line tool? Stuart Longland <stuartl@longlandclan.id.au> - 2015-09-23 04:30 +0200
        Re: Extracting directories from an ISO image, command line tool? Richard Owlett <rowlett@cloud85.net> - 2015-09-23 16:00 +0200
          Re: Extracting directories from an ISO image, command line tool? "Thomas Schmitt" <scdbackup@gmx.net> - 2015-09-23 20:10 +0200

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