Very Computer

Hi,
I have a DVD SonyDRU510 installed on a PC box with RedHat 9.0
installed.
And I couldnt mount the DVD driver with a DVD disc in it. If I put a
CD, it mounts OK.

LABEL=/                 /                       ext3    defaults      
 1 1
LABEL=/boot             /boot                   ext3    defaults      
 1 2
none                    /dev/pts                devpts  gid=5,mode=620
 0 0
none                    /proc                   proc    defaults      
 0 0
none                    /dev/shm                tmpfs   defaults      
 0 0
/dev/hda3               swap                    swap    defaults      
 0 0
/dev/fd0                /mnt/floppy             auto  
noauto,owner,kudzu 0 0
/dev/cdrom              /mnt/cdrom              udf,iso9660
noauto,owner,kudzu,r
o 0 0

default=0
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Linux (2.4.20-8)
        root (hd0,0)
        kernel /vmlinuz-2.4.20-8 ro root=LABEL=/ hdc=ide-scsi
        initrd /initrd-2.4.20-8.img

On /dev directory I have only these two entries, no dvd device.
lrwxrwxrwx    1 root     root            8 Dec  2 09:13 cdwriter ->
/dev/sg0
lrwxrwxrwx    1 root     root            9 Dec  2 09:13 cdrom ->
/dev/scd0

I upgrade the dvdrecord-0.1.5-1ark.i586.rpm.
When I try to mount I get the message

mount: No medium found

Any ideia what is going on ?

TIA

Celso Suzuki

["Followup-To:" header set to comp.os.linux.hardware.]
On 2 Dec 2003 04:42:01 -0800, Celso & Daniela Suzuki staggered into the
Black Sun and said:

Take the "kudzu" keyword out; it can cause problems.  Replace the
"udf,iso9660" filesystem type with "auto".  Data DVDs almost always use
the UDF filesystem.

Quote:> lrwxrwxrwx    1 root     root       8 Dec  2 09:13 cdwriter ->/dev/sg0
> lrwxrwxrwx    1 root     root       9 Dec  2 09:13 cdrom ->/dev/scd0

This is fine.

Quote:> I upgrade the dvdrecord-0.1.5-1ark.i586.rpm.

That wouldn't do anything.  dvdrecord is only for recording DVD-R, and
it does nothing at all for mounting DVD-R*.

What's dmesg say right after this happens?  What about if you force the
filesystem type like so?

(insert DVD-ROM)
mount -t udf /dev/cdrom /mnt/cdrom -o ro

...I have had no problems mounting DVD-R* media on my Gentoo system;
fstab line is like so:

/dev/cdroms/cdrom1   /mnt/dvd     auto       noauto,user   0 0

--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin /    mail: TRAP + SPAN don't belong
http://www.brainbench.com     /  "He is a rhythmic movement of the
-----------------------------/    penguins, is Tux." --MegaHAL

Hi,
Thank you for your reply!
Well, things didnt work as expected .....

I changed the /etc/fstab and reboot.
It still dont mount the DVD, CD mounts is fine.

I tried to mount and got the same error....

    mount: No medium found

dmesg results
    udf: registering filesystem
    cdrom: open failed.

/etc/fstab

    /dev/cdrom              /mnt/cdrom              auto    noauto,user     0 0

tried to mount directly

    mount: block device /dev/cdrom is write-protected, mounting read-only
    mount: No medium found

dmesg said three times with one command.

   cdrom: open failed.
   cdrom: open failed.
   cdrom: open failed.

Inserting a CD I have...

df result
    /dev/cdrom              258946    258946         0 100% /mnt/cdrom

dmesg result

    sr0: CDROM (ioctl) reports ILLEGAL REQUEST.
    ISO 9660 Extensions: Microsoft Joliet Level 3
    ISOFS: changing to secondary root

Any more ideias ?

TIA

Celso Suzuki

["Followup-To:" header set to comp.os.linux.hardware.]
On 3 Dec 2003 03:17:46 -0800, Celso & Daniela Suzuki staggered into the
Black Sun and said:

Why did you reboot?  You didn't need to; mount reads /etc/fstab every
time mount is invoked.

This means that the device thinks there's no medium there.  Is a DVD-ROM
(any movie DVD of the appropriate region for your geographical area will
do, I recommend "The Usual Suspects") in the drive?  Did you give the
drive time to read/calibrate itself for DVD?  It takes my DVD+RW about
20 seconds from when I insert a DVD-ROM for it to be able to mount; the
device has to figure out whether the medium is CD-ROM, CD-RW, DVD-ROM,
DVD+R, or DVD+RW, and adjust itself appropriately.

Quote:> dmesg results
> udf: registering filesystem
> cdrom: open failed.

Does "cdrecord -prcap dev=X,Y,Z" report that the device can read DVD-ROM
media?  Yeah, it should, but check anyway.

If it works for CDs but not DVDs, you might be having region code
problems.  Try with a region-free data DVD (if you can find one).

--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin /    mail: TRAP + SPAN don't belong
http://www.brainbench.com     /  "He is a rhythmic movement of the
-----------------------------/    penguins, is Tux." --MegaHAL

Hi,

Sorry for the long time withou answer. Id to do another job....

Well, after break my head a lot, I tried to install Windows to verify
if it works on it. It didnt work !!
So the problem is with the DVD driver !!!

Wrong !

I installed the DVD driver in another PC box and it works fine......

Ill try to find whats is wrong with my first box later and post my
final conclusion here.

Thank you very much for your help.

Quote:> So the problem is with the DVD driver !!!

I think you're confusing a driver and *drive*.
The driver is the piece of software that allows the computer to
communicate with the drive.

Quote:> Ill try to find whats is wrong with my first box later and post my
> final conclusion here.

The cable, maybe?

Bad secondary ide channel?