I'm having problems installing an OS onto my Mac. When I try to boot from the hard disc, I get the death chime. I unplugged the hard drive so it boots on a CD-ROM and it boots fine but when I try to install the OS I keep getting errors. I don't get anything specific, just "an error occurred" and I don't know what's wrong. I ran a utility to check for problems and nowhere can I find any problems.nibe tried multiple different CD-ROM OS discs and multiple different versions of OS to no avail. Can someone please help me?