dont find USB memorystick with fdisk -l

hello,

i just installed Knoppix 3.9 to my harddisk, no most of it runs fine, but if I want to mount my usb memory stick, I dont find it with
fdisk -l,

i only see the partitions of
/dev/hda

the stick is formated with vfat,
in /proc/filesystems i have an entry vfat

lsmod gives

usb_storage
ohci_hcd
uhci_hcd
ehci_hcd
usbcore
usbhid


my usb mouse is working fine...

can anybody help.

thanks a lot

Try mount -t auto /dev/sda1 /mnt/stick

That should work, try sdb1 if it doesn't.

well I tryed that, but all I get is:
mount :/dev/sda1 is not a valid block device

same for other /dev/sdxx

I thought that I would find all valid blockdevices with

fdisk -l

no?