Here is more kernel message on my floppy drive problem:
when issue 'mount -t msdos /dev/fd0 /mnt/floppy', the kernel cried:
'mount: the kernel does not regcognize /dev/fd0 as a block device.
(maybe 'insmod driver'?)'
I noticed that when booting my RH5.1, I got :
'Floppy drive(s): fd0 is 1.44M'
reset set in interrupt, calling 0016dc40
floppy0: no floppy controller found
What's wrong with my floppy controller? It works under dos and win98.