[BusyBox] newbie

[naveen]

Hi all

              I am newbie to busybox .I want to create custom linux in 
floopy .I created floopy with busybox .when i booted i got folloing 
errors plz help me .i don't want to mount any IDE disk .how can  i mount 
ram root file system .

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              kmod:failed to exec /sbin/modpobe -s -k block -major-1 , 
errno=2
              VFS: cannot open to device "ram0" or 01:00
              please append a correct "root=" boot options
              kernel panic : VFS :unable to mount root fs on 01:00
---------------------------------------------------------------

my fstab is like this
-------------------------
 proc  /proc      proc    defaults     0      0
 none  /var/shm   shm     defaults     0      0

my rcS like this
--------------

#! /bin/sh
 mount -a 

my etc/inittab like this 
---------------------
::sysinit:/etc/init.d/rcS
::askfirst:/bin/sh


Regards
Naveen