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Old 02-15-2004, 02:13 AM   #1
CarbonRods
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Can't Read Files on CD's


I'm a Linux newbie and have just installed Mandrake 9.2. It's a stand alone installation and not a dual boot arrangement.

Everything went well except I can't read any files on any CD.

I installed Mandrake from a couple of ISO discs that I burnt on a windows machine and the Linux machine had no problems reading the discs during the installation process.

I can burn files to a CD using K3b and I can erase a CD-RW with K3b.

After I have written files to a CD-RW with K3b it reports that the disc is empty, but when I check the CD in a windows machine the CD is fine and I can access all the files on the CD.

It's the same with every CD that I try, and it's the same if I log in as root or as a user

Anybody know what the problem may be? The CD burner is a SONY CD-RW CRX175A1

CR
 
Old 02-15-2004, 06:28 AM   #2
michaelk
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Can you view other data CDs besides the ones you have burned?

This might be a supermount problem. After writing to the CD close k3b application and reinsert the CD into the drive. View the contents using a regular file broswer app.
 
Old 02-15-2004, 06:56 AM   #3
CarbonRods
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Quote:
Originally posted by michaelk
Can you view other data CDs besides the ones you have burned?
No.

It doesn't matter what type of CD it is, the O/S doesn't want to read the contents -- it's almost as if the CD hasn't been mounted, except if I try to unmount the drive I get a message telling me that only root can unmount the drive.

I've tried rebooting and I've also logged in as root, it makes no difference. When I've tried to install new software with the software manager it repeatedly asks me to insert CD1, but refuses to acknowledge that the disc has been inserted.

CR

Last edited by CarbonRods; 02-15-2004 at 07:03 AM.
 
Old 02-15-2004, 09:21 AM   #4
michaelk
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Maybe supermount isn't working. Try mounting the CD manually.
 
Old 02-17-2004, 08:14 AM   #5
ac1980
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Also, check in fstab you are mounting the correct device. If you use module ide-scsi, the cd will be seen as /dev/scd0 even if it is a ide.

Try (as root)
Code:
mount /dev/scd0 /mnt/cdrom
ls /mnt/cdrom
 
Old 02-17-2004, 08:56 AM   #6
whansard
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this isn't an unusual problem, so don't go reinstalling or anything.
it's just an fstab entry or cdrom symlink problem.

a cdrom will typically be accessed using a device like /dev/cdrom, which
is just a link to your actual cdrom device, like /dev/hdc. generally to
burn cd's with a burner, stuff called ide-scsi and generic scsi is set up
for cdrecord to work. when this happens, the burner is no longer
accessible by it's old device. your burner software thatis working
somewhere has in it the device that it is using that works.
post back what your burning software is using as the device, and your
/etc/fstab, and the output of ls -l /dev/cdrom
 
  


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