Ok so, I was asked by a friend of mine to recover some files from his busted mac's hard disk (he got in some sort of scuffle and all but the main drive is toast). I booted up my linux distro to read the HFS formatted disk and as I was looking at his user files to pull them onto my own machine i realized the files were locked (they are under his user account, music, documents, etc). How do i go about getting them onto my own machine/getting access to read these files in general? All i need to do is recover them and i am unsure as to how to give myself permissions in this situation.