Creating Bootable USB On Linux / Mac

On Mac:

# sudo su –   ## (or whatever)

# diskutil list

Identify your disk/USB device

# sudo diskutil unmountDisk /dev/disk3

or

# sudo unmount /dev/xxx

# sudo dd if=input.iso of=/dev/usb_device

where input.iso is the OS iso file and /dev/usb_device is the USB device you’re writing to.

Or create an iso using

# dd if=/dev/disk3 of=~/Downloads/SDcard_image.iso [bs=1m]   ## optionally specify block size (doesn’t really matter)