Exact error : mount: wrong fs type, bad option, bad superblock on /dev/hdc, or too many mounted file systems

I tried everything, I removed supermount and tried a lot of stuff in my fstab file and there is always a new error coming up...

fstab :/dev/hdc /mnt/cdrom auto umask=0,user,iocharset=iso8859-1,codepage=850,ro,exec 0 0
/dev/hdd /mnt/cdrom2 auto umask=0,user,iocharset=iso8859-1,codepage=850ro 0 0
/dev/fd0 /mnt/floppy auto umask=0,user,iocharset=iso8859-1,sync,codepage=850 0 0

None of these worked and I googled for it and tried stuff but nothing works... If anyone can help me it would be greatly appreciated.

This most likely means that there is a syntax error in the fstab file. The most obvious error to me is a missing comma in between codepage=850 and ro. Apart from that try trimming the number of options (for example iocharset defaults to iso8859-1). Also try setting the filesystem type. For the floppy drive vfat is probably best and for the CD-ROM/DVD-ROM drives iso9660 is probably the best bet. This replaces the auto in the third column.

I still get : "mount: wrong fs type, bad option, bad superblock on /dev/hdc, or too many mounted file systems" for the cdroms and : "mount: /dev/fd0 is not a valid block device" for the floppy.

If your running mdk10, it now uses magicdev for automounting and won't let you mount your cd drives while it is running. Only way to stop it is:

# killall magicdev

then you can mount cd drives. If this applies and you don't like magicdev, you can uninstall it otherwise it will be back next time you boot.

Nope, I still get the same errors...

It is interesting that it says /dev/fd0 is invalid. Can you copy a disk image to the floppy (e.g. with "dd if=disk.img of=/dev/fd0"). If this fails then it would seem that there is a problem with your device files rather than the fstab file for the floppy drive and possibly for the cdrom/dvd-rom drives as well.

I don't know I most likely think it's a fstab error cause before I compile a new 2.6.6 kernel it was working fine with all defaults options but I tried putting them back in and they don't work at all... I can't access the floppy at all even though when I try to mount it or mount cd-roms you see lights flashing...

We found out the problem, I had to remove umask and codepage.

Please explain what you mean by removing "unmask and codepage" for all us n00bs. I have been getting the exact same problem. I thought it had to do with supermount. So I got a patch for it, and it still doesn't work. Please help me out here. Thanks.

Here is my old /etc/fstab file :
fstab :/dev/hdc /mnt/cdrom auto umask=0,user,iocharset=iso8859-1,codepage=850,ro,exec 0 0
/dev/hdd /mnt/cdrom2 auto umask=0,user,iocharset=iso8859-1,codepage=850ro 0 0
/dev/fd0 /mnt/floppy auto umask=0,user,iocharset=iso8859-1,sync,codepage=850 0 0

Here is my new one :
/dev/hdc /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro,exec 0 0
/dev/hdd /mnt/cdrom2 udf,iso9660 noauto,owner,kudzu,ro,exec 0 0
/dev/fd0 /mnt/floppy vfat noauto,owner,ro,exec 0 0

I removed some useless stuff and modified other but I think only removing codepage=850 and umask=0 should do the trick. Oh and don't forget to put the auto to udf,iso9660.

i had the same problem with both the download edition and the Powerpack 10.0, but i think after editing the fstab as mentioned above you should be fine

ofcourse don't forget to run

mount -a

after editing the fstab

/dev/cdrom /mnt/cdrom iso9660 noauto,owner,ro 0 0


here's my fstab.. and everytime i mount i get the error:

[root@slackware ~]# mount /mnt/cdrom
mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
or too many mounted file systems

i also tried mount -t iso9660 but still doesnt work. im a noob..

im using slackware 9.1 with kernel2.6.7.. thanks in advance.. forgive my english.

just for the record
I have the exact same problem here, with the same error msg, only removing codepage and umask doesn't work. I use mandrake9.2 and kernel 2.6.7. Here's my fstab:

/dev/hda5 / reiserfs notail 1 1
none /dev/pts devpts mode=0620 0 0
/dev/cdrom /mnt/cdrom iso9660 ro,user,noauto 0 0
/dev/floppy /mnt/floppy vfat user,noauto, 0 0
/dev/hda1 /mnt/windows vfat user,noexec,umask=0 0 0
none /proc proc defaults 0 0
/dev/hda6 swap swap defaults 0 0

ANy help would be greatly appreciated.

Hi, just remove iocharset and codepage and change "user" to "owner". It worked for me. Hope it will do the trick for u.

It might also be beneficial to change the reference to the cdrom drive to point to the actual device.

eg, if your cdrom is actually at /dev/hdb use:
/dev/hdb /mnt/cdrom iso9660 ro,user,noauto 0 0

instead of:
/dev/cdrom /mnt/cdrom iso9660 ro,user,noauto 0 0