Hows this for a necrobump?
Hi iamasmith (on the off-chance you still have the same email address, read threse forums or still own a Z!)
I am currently struggling to re-install cacko on my C3000 purely to boot OBSD but I'd much rather be able to boot directly into OBSD. It seems you got that to work but I can no longer access your tarball with the modified flash root fs and complete instructions etc. I tried the wayback machine with no luck. Might you still have a copy you could re-upload somewhere for me?
Did you ever try suggesting your installation method be added to the official Z OBSD install instructions / distribution files?
Thanks