2 useful Mac tools. PiCLoner & PiWriter
Less than 1 minute
2 useful Mac tools: PiCLoner & PiWriter
I have two applications on Mac to create a backup of your SD card (PiCloner) and another that is a graphical interface to copy the operating system from the .img file to SD (PiWriter).
Remember the right way to do the same as PiWriter in the Mac Terminal:
N is the drive of your SD card
$ diskutil list
$ sudo diskutil unmountDisk /dev/diskN
$ date +'Start: %H:%M:%S' && sudo dd if=myImage.img bs=1m of=/dev/rdiskN
$ diskutil eject /dev/diskN
Link: PiCloner
Link: PiWriter