gparted

GParted 0.18.0 --enable-libparted-dmraid --enable-online-resize

Libparted 2.3
Create Primary Partition #1 (fat32, 1.91 GiB) on /dev/sdb  00:00:01    ( ERROR )

create empty partition  00:00:00    ( SUCCESS )

path: /dev/sdb1
start: 1024
end: 1999871
size 1998848 (1.91 GiB)
clear old file system signatures in /dev/sdb1  00:00:01    ( SUCCESS )

write 68.00 KiB of zeros at byte offset 0  00:00:00    ( SUCCESS )
write 4.00 KiB of zeros at byte offset 67108864  00:00:00    ( SUCCESS )
write 4.00 KiB of zeros at byte offset 2046816256  00:00:00    ( SUCCESS )
flush operating system cache of /dev/sdb  00:00:01    ( SUCCESS )
set partition type on /dev/sdb1  00:00:00    ( SUCCESS )

new partition type: fat32
create new fat32 file system  00:00:00    ( ERROR )

mkfs.fat -F32 -v -I -n " " /dev/sdb1

mkfs.fat 3.0.26 (2014-03-07)
mkfs.fat: unable to open /dev/sdb1: Device or resource busy

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