Why can't I add a sector to USB?

Question

Iron

Hello everyone
, I'm trying to add a partition to usb under a poppy, but it doesn't work. The flash drive is in exFat, in Disk Utility the ability to add a partition is lit, but the "plus" (which is directly responsible for adding) is not lit.
I tried to format it in HFS +, then the plus also lights up, but nothing happens when I press it.
I tried it in the terminal using

diskutil partitionDisk /dev/disk2 GPT ExFAT First 10g

, but this command formats the entire flash drive in exFat, and I expected a separate section of 10 GB and the name First
The flash drive looks like this:

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *62.1 GB    disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:       Microsoft Basic Data Nikulio                 61.9 GB    disk2s2

How to add a section to it?

Answer 1

Delete the current partition, create two new ones in its place.