# Mounting an ISO image with readwrite permission

hdiutiliso-imageosx-mountain-lion

I am following these instructions for creating a cross-platform CD. I am coming across a problem in Mountain Lion where I cannot mount the image as read-write.

When I enter the following in Terminal:

hdiutil attach -readwrite ~/2013CD.iso


I get the following message:

hdiutil: attach failed - Function not implemented


Is there any way around this? I need to be able to mount the image as readwrite to make changes to it.