Re: DD bs=4M option on USB mem-stick creates false format

From	"Thomas Schmitt" <scdbackup@gmx.net>
Newsgroups	linux.debian.user
Subject	Re: DD bs=4M option on USB mem-stick creates false format
Date	2017-03-26 20:20 +0200
Message-ID	<tpkVI-3IL-1@gated-at.bofh.it> (permalink)
References	<tpkiZ-3bf-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi,

kAt wrote:
> dd if=/media/------/image.iso of=/dev/sdb bs=4M; sync
> the image works but the format of the drive seems false

The dd option "bs=" has no influence on the block size or other
drive properties as perceived by a partition editor.

> gparted when starting says that linux thinks it is a 256k block and not
> the 4m it indicates.

Normally a USB stick has a block size of 512 bytes.
Are you sure you use the term "block" in the appropriate way ?

>  It shows on an 8G drive an empty space of 28G

Very syspicious.

Which Debian ISO exactly do you use ?
What exactly does it report ?
What do these two commands report:

  /sbin/fdisk -l /dev/sdb

  echo 2 | /sbin/gdisk -l /dev/sdb

> As Gparted tried to claim and format
> this space as a 6.7G which seemed right it crashed.

Even more suspicious.

> Any advise would greatly be appreciated

The GPT in Debian ISOs is of few use.
I would erase its header block by:

  dd if=/dev/zero bs=512 seek=1 count=1 of=/dev/sdb

and then try again with a partition editor.

Have a nice day :)

Thomas

Thread

DD bs=4M option on USB mem-stick creates false format kAt <giathnygeia@openmailbox.org> - 2017-03-26 19:40 +0200
  Re: DD bs=4M option on USB mem-stick creates false format Darac Marjal <mailinglist@darac.org.uk> - 2017-03-26 19:50 +0200
  Re: DD bs=4M option on USB mem-stick creates false format Richard Owlett <rowlett@cloud85.net> - 2017-03-26 20:00 +0200
  Re: DD bs=4M option on USB mem-stick creates false format kAt <giathnygeia@openmailbox.org> - 2017-03-26 20:10 +0200
  Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-26 20:20 +0200
    Re: DD bs=4M option on USB mem-stick creates false format kAt <giathnygeia@openmailbox.org> - 2017-03-27 12:20 +0200
      Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-27 14:20 +0200
        Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-27 14:40 +0200
          Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-28 12:20 +0200
            Re: DD bs=4M option on USB mem-stick creates false format Richard Owlett <rowlett@cloud85.net> - 2017-03-28 14:00 +0200
              Re: DD bs=4M option on USB mem-stick creates false format <tomas@tuxteam.de> - 2017-03-28 14:20 +0200
                Re: DD bs=4M option on USB mem-stick creates false format Richard Owlett <rowlett@cloud85.net> - 2017-03-28 15:50 +0200
                Re: DD bs=4M option on USB mem-stick creates false format <tomas@tuxteam.de> - 2017-03-28 15:50 +0200
                Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-28 16:30 +0200
                Re: DD bs=4M option on USB mem-stick creates false format Richard Owlett <rowlett@cloud85.net> - 2017-03-28 17:40 +0200
                Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-28 19:10 +0200
              Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-28 14:20 +0200
                Re: DD bs=4M option on USB mem-stick creates false format <tomas@tuxteam.de> - 2017-03-28 14:20 +0200
                Re: DD bs=4M option on USB mem-stick creates false format Richard Owlett <rowlett@cloud85.net> - 2017-03-28 14:40 +0200
                Re: DD bs=4M option on USB mem-stick creates false format Richard Owlett <rowlett@cloud85.net> - 2017-03-28 15:20 +0200
            Re: DD bs=4M option on USB mem-stick creates false format songbird <songbird@anthive.com> - 2017-03-28 19:30 +0200
              Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-28 20:40 +0200
                Re: DD bs=4M option on USB mem-stick creates false format songbird <songbird@anthive.com> - 2017-03-29 07:50 +0200
                Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-29 10:30 +0200
                Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-29 12:20 +0200
                Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-29 12:40 +0200
            Re: DD bs=4M option on USB mem-stick creates false format kAt <giathnygeia@openmailbox.org> - 2017-03-29 00:50 +0200
              Re: DD bs=4M option on USB mem-stick creates false format songbird <songbird@anthive.com> - 2017-03-29 07:50 +0200
              Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-29 10:20 +0200
                Re: DD bs=4M option on USB mem-stick creates false format kAt <giathnygeia@openmailbox.org> - 2017-03-29 22:30 +0200
                Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-30 00:00 +0200
              Re: DD bs=4M option on USB mem-stick creates false format Curt <curty@free.fr> - 2017-03-29 16:40 +0200
                Re:Movie 'n Book recommendations by Curt kAt <giathnygeia@openmailbox.org> - 2017-03-29 22:10 +0200
                Re: Movie 'n Book recommendations by Curt Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-29 23:40 +0200
                Re: Movie 'n Book recommendations by Curt kAt <giathnygeia@openmailbox.org> - 2017-03-30 20:10 +0200
                Re: Movie 'n Book recommendations by Curt Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-30 20:20 +0200
                Re: Movie 'n Book recommendations by Curt Richard Owlett <rowlett@cloud85.net> - 2017-03-30 20:50 +0200
                Re: Movie 'n Book recommendations by Curt Catherine Gramze <rhiamom@mac.com> - 2017-03-30 20:30 +0200
                Re: Movie 'n Book recommendations by Curt Eike Lantzsch <zp6cge@gmx.net> - 2017-03-30 20:40 +0200
                Re: Movie 'n Book recommendations by Curt John Hasler <jhasler@newsguy.com> - 2017-03-30 21:30 +0200
                Re: Movie 'n Book recommendations by Curt Terence <terence.john@gmail.com> - 2017-03-30 22:00 +0200
                Re: Movie 'n Book recommendations by Curt Catherine Gramze <rhiamom@mac.com> - 2017-03-30 22:40 +0200
                Re: Movie 'n Book recommendations by Curt Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-31 00:20 +0200
                Re: Movie 'n Book recommendations by Curt Catherine Gramze <rhiamom@mac.com> - 2017-03-31 01:30 +0200
                Re: Movie 'n Book recommendations by Curt Jonathan Dowland <jmtd@debian.org> - 2017-03-31 09:50 +0200
                Re: Movie 'n Book recommendations by Curt Terence <terence.john@gmail.com> - 2017-03-31 12:40 +0200
                OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) rhkramer@gmail.com - 2017-03-31 15:10 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-31 15:40 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) Greg Wooledge <wooledg@eeg.ccf.org> - 2017-03-31 15:50 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) rhkramer@gmail.com - 2017-03-31 16:20 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) Eike Lantzsch <zp6cge@gmx.net> - 2017-03-31 16:30 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re:  Movie 'n Book recommendations by Curt) Curt <curty@free.fr> - 2017-03-31 18:00 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) kAt <giathnygeia@openmailbox.org> - 2017-04-01 00:20 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) rhkramer@gmail.com - 2017-03-31 16:20 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-31 17:00 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re:  Movie 'n Book recommendations by Curt) Liam O'Toole <liam.p.otoole@gmail.com> - 2017-04-01 19:20 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re: Movie 'n Book recommendations by Curt) Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-01 20:10 +0200
                Re: OT: speaking of days (weeks, months, years, etc.)  (was: Re:  Movie 'n Book recommendations by Curt) Liam O'Toole <liam.p.otoole@gmail.com> - 2017-04-01 21:30 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) Peter Hillier-Brook <phb@hbsys.plus.com> - 2017-03-31 17:20 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) kAt <giathnygeia@openmailbox.org> - 2017-04-01 00:20 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-01 00:50 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-01 18:10 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) Stefan Monnier <monnier@iro.umontreal.ca> - 2017-03-31 16:50 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) Lisi Reisz <lisi.reisz@gmail.com> - 2017-03-31 17:00 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) Eike Lantzsch <zp6cge@gmx.net> - 2017-03-31 17:10 +0200
                Re: OT: speaking of days (weeks, months, years, etc.) kAt <giathnygeia@openmailbox.org> - 2017-04-01 00:40 +0200
        Re: DD bs=4M option on USB mem-stick creates false format Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-03-27 21:00 +0200
          Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-27 21:50 +0200
  Re: DD bs=4M option on USB mem-stick creates false format David Christensen <dpchrist@holgerdanske.com> - 2017-03-27 06:10 +0200
    Re: DD bs=4M option on USB mem-stick creates false format kAt <giathnygeia@openmailbox.org> - 2017-03-27 14:10 +0200
      Re: DD bs=4M option on USB mem-stick creates false format rhkramer@gmail.com - 2017-03-27 14:30 +0200
      Re: DD bs=4M option on USB mem-stick creates false format Greg Wooledge <wooledg@eeg.ccf.org> - 2017-03-27 14:40 +0200
        Re: DD bs=4M option on USB mem-stick creates false format "Thomas Schmitt" <scdbackup@gmx.net> - 2017-03-27 15:10 +0200
        Re: DD bs=4M option on USB mem-stick creates false format David Christensen <dpchrist@holgerdanske.com> - 2017-03-27 20:20 +0200
          Re: DD bs=4M option on USB mem-stick creates false format Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-03-28 00:00 +0200
      Re: DD bs=4M option on USB mem-stick creates false format David Christensen <dpchrist@holgerdanske.com> - 2017-03-27 19:40 +0200

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