How to Make a Bootable USB stick from an ISO on a Mac.

  1. Download the desired .img file
  2. Open a Terminal (in /Applications/Utilities
  3. Run diskutil list to get the current list of devic
  4. Insert your flash media
  5. Run diskutil list again and determine the device node assigned to your flash media (e.g. /dev/disk2)
  6. Run diskutil unmountDisk /dev/diskN (replace N with the disk number from the last command; in the previous example, N would be 2)
  7. Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m
  8. Run diskutil eject /dev/diskN and remove your flash media when the command completes
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