Groups > comp.os.linux.development.system > #741

Re: dd and IO

From	Joe Beanfish <joebeanfish@nospam.duh>
Newsgroups	comp.os.linux.development.system
Subject	Re: dd and IO
Date	2016-04-15 14:16 +0000
Organization	A noiseless patient Spider
Message-ID	<neqt38$615$2@dont-email.me> (permalink)
References	<neomud$qc2$1@dont-email.me>

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On Thu, 14 Apr 2016 14:22:12 -0400, Bill Cunningham wrote:

> I seem to be having a bit of a problem I don't understand. I've never
> tried this before with CD/DVDs. I have a CD/RW that windows says is
> CDFS. Linux doesn't quite identify it. Ok I want to clea or zreo this
> out with dd.
> I can use a burner utility and erase this. With dd I get data no longer
> async. Something about page (memory?) and sectors written and read.
> 
>     I don't know all the conv= and ibs= or obs= alters. But tried this.
> 
> dd if=/dev/zero of=/dev/sr1 and I tried,
> 
> dd if=/dev/zero of=/dev/sr1 bs=1024 count=2
> 
> Both give me these errors. It is a USB DVD/RW. I am also trying this and
> getting errors.
> 
> dd if=/dev/sr1 of=/xpmce.iso
> 
> I want to write an ISO 9660 XP MCE OS CD/R into a ISO. And get data
> errors. What's going on?
> 
> Bill

CDs/DVDs are odd beasties. In the old days cdrecord was the way to deal
with them. Looks like Fedora is moving to libburn??

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Thread

dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-14 14:22 -0400
  Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-14 14:22 -0400
  Re: dd and IO John Reiser <jreiserfl@comcast.net> - 2016-04-15 05:19 -0700
  Re: dd and IO Joe Beanfish <joebeanfish@nospam.duh> - 2016-04-15 14:16 +0000
    Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-15 17:49 -0400
  Re: dd and IO Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2016-04-15 17:12 -0600
    Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-16 12:46 -0400
      Re: dd and IO Jorgen Grahn <grahn+nntp@snipabacken.se> - 2016-04-16 20:18 +0000
        Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-16 17:21 -0400
        Re: dd and IO Jorgen Grahn <grahn+nntp@snipabacken.se> - 2016-04-16 21:27 +0000
          Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-16 18:12 -0400
            Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-16 18:16 -0400
          Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-16 18:46 -0400
            Re: dd and IO Jorgen Grahn <grahn+nntp@snipabacken.se> - 2016-04-17 06:43 +0000
              Re: dd and IO "Bill Cunningham" <billcun-remove-@suddenlink.net> - 2016-04-17 15:11 -0400
                Re: dd and IO Jorgen Grahn <grahn+nntp@snipabacken.se> - 2016-04-19 15:33 +0000

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