# mkfs.fat > Create an MS-DOS filesystem inside a partition. > More information: . - Create a fat filesystem inside partition `Y` on device `X`: `mkfs.fat {{/dev/sdXY}}` - Create filesystem with a volume-name: `mkfs.fat -n {{volume_name}} {{/dev/sdXY}}` - Create filesystem with a volume-id: `mkfs.fat -i {{volume_id}} {{/dev/sdXY}}` - Use 5 instead of 2 file allocation tables: `mkfs.fat -f 5 {{/dev/sdXY}}` - Specify filesystem type: `mkfs.fat -F {{12|16|32}} {{/dev/sdXY}}`