run_hook ()
{
    # Format and run immediately cow_device

    if [[ "${format}" == "y" ]]; then
        sfdisk -l

        [[ -z "${formatdevice}" ]] && formatdevice=/dev/sda
        [[ -z "${formatpartition}" ]] && formatpartition=3

        fdisk ${formatdevice} <<EOT
p
n




p
w
EOT
        
        mkfs.btrfs -f -L cow_device ${formatdevice}${formatpartition}

        reboot -f
    fi

}

# vim: set ft=sh ts=4 sw=4 et: