[TriLUG] dd floppy image issue

[Craig]

I am trying to create a RH7.3 boot disk from the images on the cdrom using 
the following syntax:

dd if=boot.img of=/dev/fd0 bs=1440k

When I run this it seems to write to the floppy, but when I try and read the 
floppy, I see nothing and the floppy does not boot.  The system I am using to 
create the disk is a Dell laptop running Mandrake 8.2. 

Any thoughts on why this does not work?