Re: can't mount DVD-ROM
On Thursday 10 June 2004 13:11, Luis R Finotti wrote:
> Dear all,
>
> For some reason I can't mount my DVD-ROM anymore. I put a data CD in it
> and I get the following message when I try to mount it:
>
> debian[~]% mount /dvd/
> mount: wrong fs type, bad option, bad superblock on /dev/hdc,
> or too many mounted file systems
> (could this be the IDE device where you in fact use
> ide-scsi so that sr0 or sda or so is needed?)
>
> Here is my fstab file:
>
> debian[~]% more /etc/fstab
> # /etc/fstab: static file system information.
> #
> # <file system> <mount point> <type> <options>
> <dump> <pass>
> /dev/hda3 / ext3 defaults,errors=remount-ro
> 0 1 /dev/hda2 none swap sw 0
> 0 proc /proc proc defaults
> 0 0 none /devfs devfs defaults
> 0 0 /dev/fd0 /floppy auto defaults,user,noauto
> 0 0 /dev/cdrom /cdrom iso9660
> defaults,ro,user,noauto 0 0 /dev/hdc /dvd
> iso9660 defaults,ro,user,noauto 0 0 #/dev/hda1 /win
> msdos defaults,ro,user,noauto 0 0 /dev/hda1 /win
> ntfs defaults,ro,user,noauto 0 0 none
> /proc/bus/usb usbfs defaults,user 0 0
>
If you specify a mount option, you don't need to include "defaults". In
other words, your last line could be:
/proc/bus/usb usbfs user 0 0
> This did work before. It's been a little while since I tried to mount it
> so I don't know what I did that made it stop working... (I recentlty
> changed hda3 from ext2 to ext3 and installed hotplug.)
>
The above suggestion isn't your problem, since, as you say, it worked
before.
> Note: I can mount the same data CD using my CD-ROM drive and in Windows I
> can read the CD from the DVD drive, so I guess it is not hardware
> related.
>
> I posted the output of dmesg if you want/need to take a look:
>
> http://www.math.ucsb.edu/~finotti/dvd/dmesg
>
This excerpt from your dmesg shows the problem:
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: PIONEER Model: DVD-ROM DVD-116 Rev: 1.07
Type: CD-ROM ANSI SCSI revision: 02
Vendor: ATAPI Model: CD-R/RW 12X8X32 Rev: 9.AB
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
Attached scsi CD-ROM sr1 at scsi0, channel 0, id 1, lun 0
sr0: scsi3-mmc drive: 12x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
sr1: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray
It would appear your dvd is being treated as a SCSI device. Check your scsi
device nodes, and change your fstab as appropriate.
> Thanks and my best to all,
>
> Luis
Good job including a link to your dmesg output.
Justin Guerin
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