Got it working
- Download the Java SE 8 DMG from http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html and install.
- In term enter the following to turn off rootless and then reboot: sudo nvram boot-args="rootless=0"
- In term enter these 2 lines: sudo mkdir -p /System/Library/Java/JavaVirtualMachines/1.6.0.jdk
- sudo mkdir -p /System/Library/Java/Support/Deploy.bundle
- Turn rootless back on and reboot again: sudo nvram boot-args="rootless=1"
So I followed the instructions in reply #5, but it wouldn't let me perform the first of the two commands, since this is not a virtual machine. However, I ran the second of the two, turned the rootless back on, rebooted, and then it allowed the install to go forward. I'm waiting for it to finish, so not sure how well CS5 will perform once install is complete, but I am optimistic. I'll post the results here after I test it.
Update: Illustrator seems to work, except that I am having the same issue with the whole thing crashing when trying to use the eyedropper tool, as mentioned in another comment. Rather annoying, but I can probably work around it if I have to. Anyone else found a fix for that?