After running rebuildfstab, my fstab file look's like this:

# /etc/fstab: filesystem table.
#
# filesystem mountpoint type options dump pass
/dev/hda2 / ext3 defaults,errors=remount-ro 0 1
/dev/hda5 none swap sw 0 0
proc /proc proc defaults 0 0
/dev/fd0 /floppy vfat defaults,user,noauto,showexec,umask=022 0 0
/dev/cdrom /cdrom iso9660 defaults,ro,user,noexec,noauto 0 0
# partitions found by Knoppix
#/dev/hda1 /mnt/hda1 vfat noauto,users,exec,umask=000,uid=knoppix,gid=knoppi x 0 0
#/dev/hda2 /mnt/hda2 auto noauto,users,exec 0 0
# Added by KNOPPIX
/dev/hda1 /mnt/hda1 vfat noauto,users,exec,umask=000,uid=knoppix,gid=knoppi x 0 0

Then I can only install one cdrom, it is done.

But I can not install the other two drives.

When my system is booting I see that knoppix detects the three drives,by name and by links (scd0..1..2).

I've been tryng writting like root on filesystemtable (fstab) a new line ....

/dev/dvd /dvd iso9660 defaults,ro,user,noexec,noauto 0 0..and creating a dvd dir in the root dir..but the result is ---no medium found---.

Now I'm queryng your help. Realy I not understand. Sorry..

Thanks in advance for your answer.

Regards..........almola.