# mkfs.bcachefs > Create a `bcachefs` filesystem inside a partition. > See also: `bcachefs`. > More information: . - Create a `bcachefs` filesystem inside partition `Y` on a device `X`: `sudo mkfs.bcachefs {{/dev/sdXY}}` - Create a `bcachefs` filesystem with a volume label: `sudo mkfs.bcachefs {{[-L|--fs_label]}} {{volume_label}} {{/dev/sdXY}}`