TO FORMAT A DISK DRIVE IN (V)FAT ON GNU/LINUX

$ # We're gonna start to wipe the disk.  With wipefs(8):
$ sudo wipefs --all /dev/sda

$ # Or with dd(1):
$ dd if=/dev/zero of=/dev/sd1 bs=446 count=1

$ # Then we'll erase all older partitions table with gdisk(8):
$ sudo gdisk /dev/sda
x
z
y
y

$ # The disk is clean, we'll create a new Microsoft basic data
$ # partition:

$ sudo gdisk /dev/sda
n
[enter]
[enter]
[enter]
0700
w
y

$ # Finally we format with (v)FAT
$ sudo mkfs.fat -n TITLE /dev/sda1