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Old 03-07-2005, 03:16 AM   #1
Quercus ruber
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Registered: Mar 2004
Location: Bocholt, Germany
Distribution: Slackware
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Error when blank data CD is inserted


Hi

praps I`m being silly, but all I really want to do is to copy some data to a cdrom.

I put the (blank) cd into the drive and when I mount it, I get the following message:

mount: wrong fs type, bad option, bad superblock on /dev/cdrom

If I insert a cd which has already got data on it, I don`t get that problem - I can read the data, do whatever and then eject it.

My /etc/fstab looks like this:


Code:
/dev/hda6        swap             swap        defaults         0   0
/dev/hda5        /                reiserfs    defaults         1   1
/dev/hda7        /home            ext3        defaults         1   2
/dev/hda1        /ntfs            ntfs        user,umask=000,ro,auto         1   0
/dev/hdb1        /fat-e           vfat        user,umask=000,rw,auto         1   0
/dev/cdrom       /mnt/cdrom       iso9660     noauto,user,ro  0   0
/dev/fd0         /mnt/floppy      auto        noauto,owner     0   0
devpts           /dev/pts         devpts      gid=5,mode=620   0   0
proc             /proc            proc        defaults         0   0
/etc/fstab lines 1-9/9 (END)
Here is an extract from dmesg, when I put the disk in the drive:

Code:
hdc: command error: error=0x50
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x50
end_request: I/O error, dev 16:00 (hdc), sector 64
isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x50
end_request: I/O error, dev 16:00 (hdc), sector 64hdc: command error: error=0x50
hdc: command error: error=0x50
end_request: I/O error, dev 16:00 (hdc), sector 64

I have tried several blank cds, in case I'd put a dud in, so unless all my blanks are corrupt, the problem does not lie with the disks.

I'm running the following kernel:


Code:
ros@darkstar:~$ uname -r
2.4.26
Hope someone can help
 
Old 03-07-2005, 04:36 AM   #2
Lazarus
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Registered: Dec 2001
Location: Kent in UK
Distribution: Fedora 2
Posts: 170

Rep: Reputation: 30
A blank cd has no filesystem on it. You first have to burn your data onto in.
Here is a script I wrote .. works for me.

#!/bin/sh
#
# writes a cd from an image file
#
# written 24/6/00 last update 5/6/4 for 2.6 kernel
#
# amended to use pipe rather than tempory file
#
#cd_device="1,0,0"
#
# note for 2.6 kernel dev= parameter not needed uses /dev/cdrom
#
if [ -z $1 ];
then
echo " "
echo "type cd_write /a/path/where/the/file(s)are bootimage (optional)"
echo " "
echo "cd_write xxxx image .. to write a pure image to cd"
exit
fi
if [ $2 = "image" ]; then
echo "Writing pure image file"
cdrecord speed=4 $1
exit
fi
if [ -z $2 ]; then
mkisofs -r -v -J $1 | cdrecord -v -speed=4 -
else
mkisofs -r -v -J -b $2 $1 | cdrecord -v -speed=4 -
fi
#

If you like to use a GUI then I beleave there are lots of programs out there
for you that would do the job. Similar to nero and such on windoze.
 
Old 03-07-2005, 06:32 AM   #3
Quercus ruber
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Registered: Mar 2004
Location: Bocholt, Germany
Distribution: Slackware
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thanks - I`ll try it & report back.
 
Old 03-08-2005, 03:12 AM   #4
Quercus ruber
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Registered: Mar 2004
Location: Bocholt, Germany
Distribution: Slackware
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Original Poster
Rep: Reputation: 17
thanks, that worked and then I downloaded and compiled k3b. That worked too.

thanks a lot
 
Old 03-08-2005, 03:56 AM   #5
Lazarus
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Registered: Dec 2001
Location: Kent in UK
Distribution: Fedora 2
Posts: 170

Rep: Reputation: 30
Pleased to help
 
  


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