Mount FAT32 partition (external drive) on Mac
mkdir /fat_mount
# create area to mount FAT partition
mount -t msdos /dev/diskXXX /fat_mount


^ Thats how to mount fat drives/partitions in Mac OS, also useful for single user mode recovery. Note I think some versions may ship with "mount_msdos" as opposed to using "mount -t msdos" but I haven't used enough to say for sure.