Try just using /floppy for the mount point ie. mount /dev/fd0 /floppy and for the sound use either sndconfig or /etc/init.d/alsa-autoconfig to use alsa. If you use alsa then edit /etc/init.d/bootmisc.sh and put the line aumix -w 75 -v 75 at the bottom of the file to set the default sound levels on boot. All this as root of course.