Writing Images on MacOS

##1.Be root or your are root(admin)

su

##2.unmount Disk

	diskutil list

####find your disk then unmount it

looks like /dev/disk0 ………..TYPE NAME…

/dev/disk1 ……..XXX…XXX

	diskutil unmountDisk /dev/diskN

you will see: xxxxxx diskN was successful

##3.Use the ‘dd’

sudo dd if=xxx.iso of=/dev/sdX bs=4096