To format USB flash card to exFAT file system we need this set of commands:
- sudo -i
- fdisk -l (this will provide mounted disk path, in my case it was /dev/sdc1)
- mkfs.exfat -n SOME_DISK_LABEL /dev/sdc1
- fsck.exfat /dev/sdc1 (this only need to be sure that disk was formatted w/o issues)