After upgrading from RH8 to 9 (I know RH9 is finished and I plan to move on when Fedora 3 comes out) I had major problems but I solved them with the exception of my cdrom. I have just installed a dvd rom to replace a cdrom and both this new drive and the old one work perfectly. I have two cd drives, hdc and hdd. cdrom1>hdd is a burner and works without problems but when I try to mount cdrom>hdc I get:

Could not mount device.
The reported error was:
mount: /dev/cdrom: can't read superblock

I am not running scsi emulation that I know of.

ls -l /dev/cdrom produced this:
lrwxrwxrwx 1 root root 8 Apr 14 18:31 /dev/cdrom -> /dev/hdc

dmesg | grep CD

hdc: LITE-ON DVD SOHD-167T, ATAPI CD/DVD-ROM drive
hdd: ASUS CRW-5224A, ATAPI CD/DVD-ROM drive
hdd: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12

dmesg
<snip>
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
hdd: attached ide-cdrom driver.
hdd: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
udf: registering filesystem
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
cdrom: open failed.
cdrom: open failed.
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
spurious 8259A interrupt: IRQ7.
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
cdrom: open failed.
cdrom: open failed.
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide
ide-cd: ignoring drive hdc
ide-floppy driver 0.99.newide


this line might have something to do with it:
spurious 8259A interrupt: IRQ7

Any assistance will be greatly appreciated.

Thanks
Biggles.

hi there

could u post the exact command u ran and he error message u get

regards

Hi. Thanks for replying so quickly.

If I click on the desktop icon for cdrom or type
mount /mnt/cdrom/

I get:
mount: /dev/cdrom: can't read superblock

disc or no disc.

On the other hand if I try cdrom1 without a disc in I get:
mount: No medium found

Thanks
Biggles

hi there

try mounting ur disk as

mount /dev/cdrom /mnt/cdrom

regards

Hi again

I had to su to do that but it gave the same result:
mount: /dev/cdrom: can't read superblock

Thanks
Biggles

hi there

what do u have in the cd???
have u tried this with a different CD.maybe the CD is damaged

regards

Hi

This happens with and without a disc in. I have tried it with several discs and it won't play. It works when I boot into windows though so there is something wrong with they way my linux system is set up.

If all else fails I will just have to swap my two drives and lose the use of my burner under linux so I can use my dvd drive but I would like to use both under linux.

Thanks
Biggles

hi there

i am sorry for i could not understand one thing that
is this the DVD rom u r getting the error???

regards

Hi

Yes it is a dvd rom but I was also getting the same error when I only had a cdrom drive in.

Thanks
Biggles

hi there

what i know is that in 2.4 kernels apart from scsi emulation u need to append a line like this during bootup in lilo or grub

"append hdc=ide-scsi"

so u can look into this direction also

regards

Hi

I don't run scsi emulation for these drives but I changed lilo.conf anyway and I still get the same error:

Could not mount device.
The reported error was:
mount: /dev/cdrom: can't read superblock

I don't think we are going to find a solution to this one so I will just swap the drives over and use my burner in windows. At least I will have use of my dvd and hopefully the problem will be fixed when I upgrade to Fedora 3.

Thanks for your help.
Biggles

hi there

why aren;t u running scsi emulation ,as far as i know need that fro ur CD burner

regards

I did run scsi simulation for a while and my burner was ok but recently I was able to use my burner without it for some reason.

I swapped the drives over and now the dvd works but the burner doesn't but I have been thinking about it and I think it might be a defective ide cable. It might just be a coincidence that it shit itself when I upgraded the system so I will try a new cable and that might get both drives working.

Thanks for your help.
Biggles