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Old 04-16-2003, 11:31 PM   #1
umd
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Registered: Mar 2003
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unsolved mounting of cdrom


Here is my basic problem. I have about 30 cd's that were burned in nero under win2k. They used to mount and play ok with no problems under rh 8. Since I've been using Slack this is my only major problem so far.
Another wierd part is the fact that i doubleclicked on a file from a cd yesterday that was mounted and now the same cd wont mount ... infact no cd's will mount now, where before yesterday about half did and half did'nt ...even though they were burned at the same time ....
Btw these are audio, small prog files ect .. on the cd's


the main command ive been trying are:

mount /mnt/cdrom
which used to mount my hdd dvd drive, but does not work anymore.

I've also added a line in /etc/fstab ... basically
/dev/hdc /mnt/cdrw to try and get my cdrw working ... my cdrw will record btw, but will not read files ....

ive also tried ...

mount -t iso9660 /dev/cdrom /mnt/cdrom
mount -t iso9660 /dev/hdc/ /mnt/cdrw

i read in another post to try udf:

bash-2.05b# insmod udf
Using /lib/modules/2.4.20/kernel/fs/udf/udf.o.gz

and it still dosent work .. I've tried mabey one or two other things but can't remember them right now....

Any thoughts would be appreciated...














 
Old 04-17-2003, 02:47 AM   #2
whansard
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Registered: Dec 2002
Location: Mosquitoville
Distribution: RH 6.2, Gen2, Knoppix, 98,2000 + various
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it looks to me like your drive is going out, unless
you just scratched a couple of your disks, then
changed some setting that now keeps your drive
from working right.
do you have a different operating system on your
machine so you can see if the problem is specific
to your linux install?
do you have any bootable cdroms that you can try
and see if your drive can read and boot from?

could you post the specific error messages you
get when trying to mount a cdrom?
does it say i/o error, or what?
 
Old 04-17-2003, 04:02 PM   #3
umd
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Registered: Mar 2003
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this only happens in slackware ... in windows 2k and redhat 8.0 it works fine... one of the drives is only a few monthes old also, plus yes they do boot if i put my redhat iso in there ... as for the cd's ... i play them in my car stereo, my tv's dvd player ect ... so they are fine... also i played one on this dvd player 2 days ago then it would'nt work yesterday leading me to believe it has something specific to due with slackware ...

the error message is just ..
bash-2.05b# whoami
root
bash-2.05b# mount /mnt/cdrom
mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
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?)

most of the time it does this ...
 
Old 04-18-2003, 12:34 AM   #4
whansard
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can you
mount /dev/scd0 /mnt/cdrom
 
Old 04-21-2003, 12:01 PM   #5
umd
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hey that worked... thank you very much ... .. is there a reason why its working this way so that i know in the future ... and thanx for getting back to me ...
 
Old 04-21-2003, 12:28 PM   #6
whansard
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your drive is currently setup using scsi-emulation.
if you ln -s /dev/scd0 /dev/cdrom
then you will be able to mount it as cdrom.
when a drive is set up for scsi emulation, usually
for cdrom burning purposes, it is no longer available
as hdb, hdc, ect . . ., just scd0, scd1 and so on
 
Old 04-21-2003, 11:20 PM   #7
umd
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Registered: Mar 2003
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Original Poster
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aye .. i got ya ... one last question i guess if you dont mind me asking ... ifi can myount it
mount /dev/scd0 /mnt/cdrom
.... is there a reason i would want to unlink it and use it only as a regular cdrom ...?
... my thinking is i can still record with it this way and just use that little longer command to mount it ... would the only diffrence be i could then type
mount /mnt/cdrom again ...?
if thats all i have no worries mount ing it the other way ... and thanks again ....
 
Old 04-21-2003, 11:28 PM   #8
whansard
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Registered: Dec 2002
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the symlink /dev/cdrom can point to wherever you
want. it doesn't change that it is still at /dev/scd0.
it would be at both.
making the link to /dev/cdrom is for convenience and
for software that looks for a cdrom at /dev/cdrom.
your burning software will use /dev/scd0, and
say your audio cd player would use /dev/cdrom, but
it's still the same drive.
unless you have 2 cdrom drives and you want to
have your other one as the cdrom drive.
the scd0 is an actual device
your /dev/cdrom is just a symlink to /dev/scd0
 
  


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