Procedure

  1. Insert the USB drive into the computer.
  2. In the Terminal, use the df command to find the mounted path on your computer.
  3. Enter sudo umount <mount path> to unmount the path.
  4. To check the USB drive name, use the lsblk or diskutil list (Mac) command (for example, /dev/sdb).
  5. Copy the iso file onto the USB drive.
  6. sudo dd bs=1M if=<path to the iso> of=<your USB drive> conv=fsync status=progress