missing kernel or user mode driver us b-storage

[AlilouLinux]

Hello,
I want use my USB key so I have added this line in /etc/fstab.
/dev/sda1   /mnt/cleUSB   auto   users,owner,rw  0 0
when I enter #mount -a the answer is that the module /dev/sda1 is not
valid peripheric.
and when I use this commande

(tail -f /var/log/messages), it give me this answer:

***************************
Jul 12 15:10:23 localhost kernel: hub.c: new USB device 00:1d.7-3,
assigned addr ess 3
Jul 12 15:10:26 localhost usb.agent[6201]: missing kernel or user mode
driver us b-storage
Jul 12 15:10:26 localhost modprobe: modprobe: Can't locate module
block-major-67
Jul 12 15:10:26 localhost last message repeated 15 times
Jul 12 15:10:26 localhost modprobe: modprobe: Can't locate module
block-major-68
Jul 12 15:10:26 localhost last message repeated 15 times
Jul 12 15:10:26 localhost modprobe: modprobe: Can't locate module
block-major-69
Jul 12 15:10:26 localhost last message repeated 15 times
Jul 12 15:10:26 localhost modprobe: modprobe: Can't locate module
block-major-70
Jul 12 15:10:26 localhost last message repeated 15 times
Jul 12 15:10:26 localhost modprobe: modprobe: Can't locate module
block-major-71
Jul 12 15:10:26 localhost last message repeated 15 times
Jul 12 15:10:26 localhost modprobe: modprobe: Can't locate module
block-major-12 8
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-12 9
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-13 0
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-13 1
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-13 2
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-13 3
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-13 4
Jul 12 15:10:27 localhost last message repeated 15 times
Jul 12 15:10:27 localhost modprobe: modprobe: Can't locate module
block-major-13 5
Jul 12 15:10:28 localhost last message repeated 15 times
Jul 12 15:10:28 localhost kernel: inserting floppy driver for
2.4.22-1.2197.nptl
Jul 12 15:10:31 localhost kernel: floppy0: no floppy controllers found
Jul 12 15:10:31 localhost insmod:
/lib/modules/2.4.22-1.2197.nptl/kernel/drivers /block/floppy.o:
init_module: No such device
Jul 12 15:10:31 localhost insmod: Hint: insmod errors can be caused by
incorrect  module parameters, including invalid IO or IRQ
parameters.       You may find m ore information in syslog or the output
from dmesg
Jul 12 15:10:31 localhost insmod:
/lib/modules/2.4.22-1.2197.nptl/kernel/drivers /block/floppy.o: insmod
block-major-2 failed
Jul 12 15:10:33 localhost devlabel: devlabel service started/restarted
*********************
missing kernel or user mode driver us b-storage --> I think that it does
mean that I have not the necessary module to use an usb storage.
What must I do? and where can I find this module?
Thanks for your answers.

-- 
Alilou_Linux