• largely adapted from https://help.ubuntu.com/community/Installation/FromUSBStick#From_Mac_OSX

  • download the iso

    wget http://napoleon.acc.umu.se/debian-cd/6.0.4/i386/iso-cd/debian-6.0.4-i386-CD-1.iso # or http://debian.ens-cachan.fr/ftp/debian-cd/6.0.4/i386/iso-cd/debian-6.0.4-i386-xfce+lxde-CD-1.iso
    hdiutil convert -format UDRW -o target.img debian-6.0.4-i386-CD-1.iso
    mv target.img.dmg target.img
    
  • identify where is your USB stick

    diskutil list
    
  • unmount the USB stick

    diskutil unmountDisk /dev/disk2
    
  • write on the stick

    mv target.img.dmg target.img
    sudo dd if=target.img of=/dev/rdisk2 bs=1m
    
  • eject the USB stick

    diskutil eject /dev/disk2