i have a 100% legal copy of the 10.5 install dvd disk image (we get it from school for free this way instead of paying for media) and i am trying to get it onto a firewire drive and im having some issues my understanding is i need a 10GB GUID partition (intel mac) on my external FW400 drive to restore the image to. i have the .dmg file on another external drive. in disk utility i then go to the 'restore' tab, select the .dmg file as the source, the empty 10GB partition as the destination, and hit restore. what happens is about 5 seconds later i get the following error: "an error (16) occured while copying (resource busy)" i have tried this 10 ways and i do not understand what the heck is wrong. i have mounted the DMG and it appears fine, but i need it on the external FW drive as a bootable partition. any ideas?