Installing Solaris 9 on Sparcstation 4

Hi all,

Short intro: I have experience with Linux/Windows system administration and
some rather short exposure to Solaris. Lately I've become interested in
practising with Solaris/Sparc on my home network and that's how I ended up
on this list :)

Question: Is it possible to update Solaris 9 from core installation to full
without changing disk layout? It looks like in my case only the core installation of
Solaris 9 (9/05) for Sparc properly creates the boot record, all other types
of installation do not boot up. So I'm thinking of installing core system and
then updating it to full installation. But when I try to do that by booting from
CD after core installation, the installation process seems to create new boot
record causing the boot process to fail after reboot.

You can read much more detailed explanation of the issue in this forum thread:
http://tinyurl.com/6l6v8e

Regards,
Aman