bootable ISO

bootable.sh

# Convert the .iso file to .img using the convert option of hdiutil
hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/target.iso

# clean up extension
mv ~/path/to/target.img.dmg ~/path/to/target.img

# Get the current list of devices.
diskutil list

# 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).
diskutil unmountDisk /dev/diskN

sudo dd if=/path/to/target.img of=/dev/rdiskN bs=1m