"Richardson, Eric J" <[email protected]> wrote:

> > It seems that you are using the wrong devices.....
>
> > You started with dev=1,0,0, why did you try to use a different device later 
> > on?
>
> Whoops!  Sorry, that was my bad.  I typed this out from memory:
>
> > > cdrecord -v speed=2 dev=1,0,0 -multi /tmp/file.raw
>
> But the later ones I copied directly from the screen.  I am not really 
> switching devices; I just got the machines confused when I typed the first 
> command.
>
> > Given the fact that you did not report about errors from the first write 
> > process, I assume that you used the right device.
>
> Yes, I use dev=2,0,0 for the initial cdrecord.  I got this number from 
> cdrecord -scanbus.  Using this device does not generate any errors.
>
> > Given the fact that you could not mount the device, I assume that you used 
> > the wrong UNIX device name.
>
> I use /dev/sr0 to mount the device.  I cannot mount the drive, using /dev/sr0 
> OR /dev/dvd, after the first write without manually reloading the tray. After 
> I reload the tray, /dev/sr0 mounts just fine.  I cannot perform the second 
> write at all, as I said.  From reading the man page, I think I am supposed to 
> use the UNIX device name with the -M in mkisofs, but mkisofs does not like 
> /dev/sr0.  It did attempt to write when I used /dev/dvd, which is a link to 
> /dev/sr1, but I don't know enough about Linux device names to know why.  As I 
> said in my first email, the attempt to write was unsuccessful.
>
> > If there is only on CD-ROM type device on your machine, cdrecord will use 
> > the right one without a need to specify dev= - read the man pages....
>
> Yes, I read that in the man pages, but there is a second CD-ROM device that 
> confuses things.  The KVM that this machine is on attaches a "bonus" device 
> via USB, which for some reason shows up as a CD drive at 0,0,0.  This is why 
> I specify the dev.

Linux device naming in special related to SCSI is a nightmare and you would 
first need to find out the right device names.

I would start with a definitely working medium and see whether there is an 
automounter that is clever enough to mount the device.

Besides the problems in Linux that Mr. Torvalds intentionally removed the 
ioctl()s that would allow to correctly map all device names, there is another 
problem: hald and it's successors - all writtenby  the same person that does 
not know enough about the state graph of CD-ROMs...

The latter may cause Linux interrupt a write process and to detect media.

If you wrote the medium and if you did not got any error message from the 
drive and still the medium is apparently not written, you may have used bad 
media or the Linux kernel did hide problems from you, so cdrecord could not 
report.

First run cdrecord -minfo -v for the same device you used for writing.

If this does not work, try media that is known to be OK, e.g. Verbatim (small 
quantities for consumer packages have higher quality).



Jörg

-- 
 EMail:[email protected]                    (home) Jörg Schilling D-13353 Berlin
       [email protected] (work) Blog: 
http://schily.blogspot.com/
 URL:  http://cdrecord.org/private/ 
http://sourceforge.net/projects/schilytools/files/'

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