Mac OS X fash disk burning

Posted on 2009/10/29 by Balazs

Overview

One of the neat aspects of OSX is that it has all the classic Unix tools available. Linux users know that dd is the command line tool to flash a CF card or a USB drive on Linux. Here is how to use dd on the Mac.

Steps

      Open a command line tool (terminal or xterm if you have X11.
      Itentify the drive to flash:

      • Eject and unplug the card
      • On the command line run diskutil list
      • Plug in your CF drive
      • On the command line run diskutil list. Your drive will be named /dev/diskN where N is the number of the drive.
      Flash the drive by running: sudo dd if=/Users/xxxxx/Desktop/pfSense.img of=/dev/rdiskN bs=1m (in this exmple I’m burning the pfSense.img file, replace it with the file you want to use to flash the firewall.
      Eject the drive: diskutil eject /dev/diskN

References:

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