Blessing Cloned OS 9 System Folder

I have a strange problem. I cloned over my OS 9 drive to a larger hard drive. My original OS 9 drive will boot OS 9, but the clone drive will not. In my OSX System Preferences, Startup Disk sees it as a bootable OS, and the Classic Pane sees it as bootable for Classic Mode (I tested it, it works). But if I tell Startup Disk to start on the cloned OS 9, it won't do it. Instead, it will try booting, fail, then reboot using the original OS 9 volume. If I reboot while holding the Option Key, the cloned OS 9 volume does not appear.

I seem to remember using a repair utility piece of software once (when I'd cloned over the OS 9 from a previous drive) which came up with a message that it was blessing my OS 9 system folder, but I can't remember which software that was, it was so long ago.

I have gone into Terminal and typed:

bless -folder9 "/Volumes/HD Volume/System Folder"

where "HD Volume" is my cloned volume name. No luck booting the cloned OS 9.

I have gone into the cloned OS 9 system folder and removed the Finder and System Files, closed the System Folder window, put those two files back into the System Folder. (It was something that several people seem to do when I googled "bless OS 9".) Still no luck.

I have tried simply copying the Finder and System files from the original to the clone on the desktop level. No luck.

Why is the OSX System Preferences able to see it as a bootable drive plus able to launch it in Classic Mode, but I can't boot from it? How can I make this cloned OS 9 boot?

BTW, the OS 9 version is 9.2.2, and I've not had any problems booting from the original OS 9 HD (nor any problems using that original OS HD for Classic Mode).