Resources:

• (V)FAT
• exFAT
• General Procedure

Find your USB-Stick using lsblk. I will refer to the stick using /dev/sd[?] (the device, not its partitions). Unmount any partitions before you continue.

VFAT

I used VFAT for updating my BIOS.

• sudo cfdisk /dev/sd[?]
  • Delete all partitions
  • Create one large partition of type W95 FAT32
  • Write
  • Quit
• sudo mkfs.vfat -F 32 /dev/sd[?]1 (Use the partition, not the device)
• USB is now ready to mount & write to.

exFAT

Good when using the USB for both Linux and Windows.

• Install exfatprogs
• sudo fdisk /dev/sd[?]
  • Create a new (dos) partition table: o, enter
  • Create a new partition: n, enter, accept default options
  • Change the partition type to HPFS/NTFS/exFAT: t, enter, 7, enter
  • Write changes: w, enter
  • Quit: q, enter
• sudo mkfs.exfat -n "my label" /dev/sd[?]1 (Use the partition, not the device)
• USB is now ready to mount & write to.