[Leaplist] linux can not read data DVDs???

[John Simpson]

On 2007-02-02, at 1503, "pberry2"@cfl.rr.com wrote:
> ray wrote:
>> cat /etc/fstab
>> # /etc/fstab: static file system information.
>> #
>> # <file system> <mount point>   <type>  <options>       <dump>   
>> <pass>
>> proc            /proc           proc    defaults        0       0
>> /dev/sda3       /               ext3    defaults,errors=remount-ro  
>> 0       1
>> /dev/sda1       /boot           ext3    defaults        0       2
>> /dev/sda4       /home           ext3    defaults        0       2
>> /dev/sda5       none            swap    sw              0       0
>> /dev/hda        /media/cdrom0   udf,iso9660 user,noauto     0       0
>> /dev/scd0       /media/cdrom1   udf,iso9660 user,noauto     0       0
>> /dev/fd0        /media/floppy0  auto    rw,user,noauto  0       0
>> ray at debian64:~$ sudo mount -t udf /dev/hda /media/cdrom0
>> Password:
>> mount: block device /dev/hda is write-protected, mounting read-only
>> mount: wrong fs type, bad option, bad superblock on /dev/hda,
>>        missing codepage or other error
>>        In some cases useful info is found in syslog - try
>>        dmesg | tail  or so
>>
>> ray at debian64:~$ sudo mount -t udf /dev/scd0 /media/cdrom1
>> mount: No medium found
>>
>> still no  luv...
>
> When I find "No medium found" errors, I change out the optical  
> unit, because it means that the laser is burned out, or the  
> circuitry is blown.
> Or, in a rare instance, that the firmware is faulty.

or maybe he physically put the DVD into the IDE-based CD/DVD-ROM  
drive rather than the SCSI CD/DVD-ROM drive, and that error happened  
because the SCSI drive was empty, therefore "No medium found" means  
exactly what it says.

does the machine physically have two CD-ROM drives? if so, are you  
sure which drive you put the DVD into? if so, what was the point in  
trying to mount the other drive, which you knew to be empty?

did you try running "dmesg | tail" after getting the error message  
when you tried to mount /dev/hda, like it told you to do? if so, what  
did it tell you?

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| John M. Simpson    ---   KG4ZOW   ---    Programmer At Large |
| http://www.jms1.net/                         <jms1 at jms1.net> |
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| http://video.google.com/videoplay?docid=-4312730277175242198 |
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