Is this a floppy with a filesystem already on it?
I create a separate mount point for floppies, working as root in / I "mkdir fd0"
then still as root "mount /dev/fd0135ds18 /fd0" (floppy #0, double sided, high density)
and once finished move away from /fd0 and "umount fd0"
If the floppy doesn't have a filesystem you create it with "mkdev fd".
You can mount it most anywhere on the filesystem, many people mount it at /mnt.
Ed Fair
Give the wrong symptoms, get the wrong solutions.