Binary package “dosfstools” in ubuntu oneiric

utilities for making and checking MS-DOS FAT filesystems

 The dosfstools package includes the mkdosfs (aka mkfs.dos and mkfs.vfat) and
 dosfsck (aka fsck.msdos and fsck.vfat) utilities, which respectively make and
 check MS-DOS FAT filesystems on hard drives or on floppies.
 This version uses the enhanced boot sector/superblock format of DOS 3.3+ as
 well as provides a default dummy boot sector code.