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

dd and IO

From	"Bill Cunningham" <billcun-remove-@suddenlink.net>
Newsgroups	comp.os.linux.development.system
Subject	dd and IO
Date	2016-04-14 14:22 -0400
Organization	A noiseless patient Spider
Message-ID	<neomud$qc2$1@dont-email.me> (permalink)

Show all headers | 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