Mounting? suddenly didn't work

Question

I have a problem mounting nowadays, not too sure what happened. It has been working for me all along. here's my entry within /etc/fstab
# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
none /proc proc defaults 0 0
none /dev/pts devpts defaults 0 0
none /dev/shm tmpfs defaults 0 0
tmpfs /tmp tmpfs defaults 0 0
#sysfs /sys sysfs defaults 0 0
usbfs /proc/bus/usb usbfs defaults 0 0
/dev/cdroms/cdrom0 /mnt/cd iso9660 ro,user,noauto,unhide 0 0
/dev/cdroms/cdrom1 /mnt/dvd udf ro,user,noauto,unhide 0 0
/dev/floppy/0 /mnt/fl vfat user,noauto,unhide 0 0
#/dev/sda1 /mnt/thumb vfat rw,user,umask=022 0 0
#/dev/sda1 /mnt/hd2 vfat rw,user,umask=022 0 0
/dev/discs/disc0/part1 /mnt/win_c ntfs ro,user,noauto 0 0
/dev/discs/disc0/part2 /mnt/win_d vfat rw,user,noauto,umask=022 0 0
/dev/discs/disc0/part3 swap swap defaults 0 0
/dev/discs/disc0/part6 / ext3 defaults 0 1
/dev/discs/disc0/part5 /boot ext3 defaults 0 1
/dev/discs/disc0/part7 /home ext3 defaults 0 1
If i put a CD in my CD and type 'mount /mnt/cd' it returns: no medium found.
If i put a CD in my DVD-ROM, and type 'mount /mnt/dvd', it returns:
mount: wrong fs type, bad option, bad superblock on /dev/cdroms/cdrom1,
       or too many mounted file systems
Anyone have an idea what's going on? I've managed to mount any CD all this time with similar entry, and now I'm stuck with no clue whatsoever. Please help[

Answer 1

I am going to start with one that seems highly suspect to me and that is your "No medium found" when you try to mount your /mnt/cdrom.  Assuming that the mount command is ok,  this indicates that it's searching the wrong drive to me (and I said as much when I posted the first time).  so if you have not already checked it could you check and make sure
ls -l /dev/cdroms/cdrom0 is pointing to the correct /dev/hdx (ie. you cdrom?) .  your DVD sounds like it's pointing correctly.  did you also try mounting it manually like so:
#mount -t  udf /dev/cdroms/cdrom1 /mnt/dvd
(This doesn't go through /etc/fstab BTW, so it's worth a try)
I don't know how the kernel is configured so I am going to guess: you did install the correct version of the kernel right? kernel26 instead of kernel26scsi?