I've not been following this thread but have encountered similar
problems on other systems. I would suggest going back to basics booting
to the firmware and checking to make sure the hardware sees the device.
If so, boot on a vanilla USB Linux, for example GNU System rescue and
see if it sees the device. Assuming this all works, boot your normal
system and try one of the hardware listing applications (e.g., lshw). If
the device is connected to a SATA port, lsscsi may prove useful. If USB,
then lsusb.

On 8/19/24 20:31, karl@??? wrote:
>> olbigtenor:
> ...
>>> Can't find the DVD drive at all.
> ...
>
> Another simple test:
>

>   # grep ' sr' /proc/devices
>    11 sr
>   # egrep '(iso|udf)' /proc/filesystems
>           iso9660
>           udf
>   #

>
> Regards,
> /Karl Hammar
>
>
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> Dng@???
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-- 
William (Bill) Moss
bill.m.moss@???
NY (USA)
     Those who will not reason, are bigots,
     those who cannot, are fools,
     and those who dare not, are slaves.
Lord Byron

     Justice will not be served until those who are
     unaffected are as outraged as those who are.
Benjamin Franklin

     When the people fear the government there is
     tyranny, when the government fears the people
     there is liberty.
John Basil Barnhill