Install OS 9
I separated my hard drive into two partitions. One is running OS X Yosemite, but I want the other to run OS 9 from an installation CD I purchased. How can I get OS 9 installed on the other partition? I have tried holding down "c" while booting. I have also tried holding down "option" while booting - neither of these give me the option to install OS 9 from the CD on to the other partition. Any information is appreciated!
MacBook Air, OS X Yosemite (10.10.3)