Groups > comp.os.linux.development.system > #737

dd and IO

Path	csiph.com!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail
From	"Bill Cunningham" <billcun-remove-@suddenlink.net>
Newsgroups	comp.os.linux.development.system
Subject	dd and IO
Date	Thu, 14 Apr 2016 14:22:12 -0400
Organization	A noiseless patient Spider
Lines	23
Message-ID	<neomud$qc2$1@dont-email.me> (permalink)
Injection-Date	Thu, 14 Apr 2016 18:18:53 -0000 (UTC)
Injection-Info	mx02.eternal-september.org; posting-host="ae1a3756a51dd06f04e68ce80510f6dc"; logging-data="27010"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/Ac4NYTYR/co8634vltv2g"
X-MimeOLE	Produced By Microsoft MimeOLE V6.00.3790.3959
X-RFC2646	Format=Flowed; Original
X-Newsreader	Microsoft Outlook Express 6.00.3790.3959
Cancel-Lock	sha1:9bDWC84thhbzoyTutUwH9XFDOdU=
X-Priority	3
X-MSMail-Priority	Normal
Xref	csiph.com comp.os.linux.development.system:737

Show key headers only | View raw

    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

Back to comp.os.linux.development.system | Previous | Next — Next in thread | Find similar

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

csiph-web