Mailinglist Archive: opensuse (3442 mails)

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dd not possible with DVD-ROM drive
  • From: David List <david@xxxxxxxxxxxx>
  • Date: Fri, 7 Dec 2001 18:58:13 +0100
  • Message-id: <200112071758.fB7HwDK09475@xxxxxxxxxxxxxxx>
I am trying to extract iso-images from CD-ROMs read with a SCSI DVD-ROM
drive. This doesn't work too well, however. I get an error message from dd
about an input/output error.

The drive is /dev/sr0 and the line I try is the following:
dd if=/dev/sr0 of=image.iso bs=2048

The drive works perfectly well in every other respect, both as a CD-ROM
drive and as a DVD-ROM drive, and the command line above works for me on
other systems with a CD-ROM drive, where '/dev/sr0' is replaced with the
correct device.

One thing I have noticed is that the attributes of the device seem to live
their own life. I have tried to set them to user root group disk and set
read- and write-rights for the group, but soon after the device is suddenly
owned by some other user and group is set to users. What gives?

Best regards,
David List

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