Format HDD

#gpart show /dev/[device]
#gpart destroy -F /dev/da0

  fat32

#gpart create -s mbr /dev/da0
#gpart add -t fat32 /dev/da0
#newfs_msdos -L label -F 32 /dev/da0s1

  UFS

#gpart create -s gpt /dev/da0
#gpart add -t freebsd-ufs /dev/da0
#newfs /dev/da0p1