Re: [Dvdrtools-users] cdread: Read-only file system

[Andre Dalle]

I've never used cdread.  If you simply want to capture the image of
the disk, "dd" will do the job.

dd if=/dev/hdc of=image.iso

Note if there is a bad sector on the disk that can't be read dd will
stop at that point and you'll get an incomplete image.

If you just want to view the filesystem, mount the image and copy over
any files you need.

On Tue, Feb 22, 2005 at 05:10:15PM -0500, Larry Siden wrote:
> I have a DVD reader/writer on /dev/hdc.  When I enter the command
> "cdread dev=/dev/hdc f=filename", it prints "readcd: Read-only file
> system. Cannot open '/dev/hdc'. Cannot open SCSI driver."  Can someone
> tell me what this means?  I am running cdread because I want to read
> from the DVD, not write to it, so why should it care if /dev/hdc is
> read-only?  In any case, /dev/hdc is a device, not a filesystem.
> 
> I am running Linux  2.6.10.  In grub.conf, the relevant kernel params
> are "... hdc=ide-cd hdd=ide-cd".
> 
> cdrecord -scandisk only shows devices attached to my actual SCSI card,
> not devices emulating SCSI, as it used to when I had the old
> "cdrecord" package.
> 
> Can someone tell me if I am doing something wrong?
> 
> -- 
> Larry Siden
> http://umich.edu/~lsiden/
> 

-- 
Andre Dalle
Harumph!