Fonte: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx
- Convert the .iso file to .img using the convert option of hdiutil:
hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/ubuntu.iso
- Run
diskutil list
to get the current list of devices. - Insert your flash media.
- Run
diskutil list
again and determine the device node assigned to your flash media (e.g./dev/disk2
). - Run
diskutil unmountDisk /dev/diskN
(replace N with the disk number from the last command; in the previous example, N would be 2). - Execute
sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m
(replace /path/to/downloaded.img with the path where the image file is located; for example, ./ubuntu.imgor ./ubuntu.dmg).- Using /dev/rdisk instead of /dev/disk may be faster
- Run
diskutil eject /dev/diskN
and remove your flash media when the command completes