Solaris 10 - sun4v - unsupported platform group?

After a bit of searching I've found this question asked in various places in this forum without having an answer. Is anyone able to help me and the others out?

http://forum.java.sun.com/thread.jspa?forumID=841&threadID=5115532

http://forum.java.sun.com/thread.jspa?forumID=841&threadID=5126795

http://forum.java.sun.com/thread.jspa?forumID=841&threadID=5097639

The problem seems to come down to this:

"add_install_client hostnamesun4v" returns "unsupported platform group".

"add_install_client hostnamesun4u" works, but when the client is booting it errors.

boot: cannot open kernel/sparcv9/unix

Enter filename [kernel/sparcv9/unix]:

In my case this is a T1000, which should use the sun4v platform. My install server is a v100 with a fresh install of Solaris 10; the same CDs I used in the setup_install_server process.

I think the answer is as simple as this: How can I get the following command to work?

add_install_client hostnamesun4v

When I get this working I'll post my solution here.

[1108 byte] By [walter_sa] at [2007-11-27 10:57:27]
# 1

You need Solaris 10, Update 3 (11/06) to support sun4v.

pppooopa at 2007-7-29 12:09:14 > top of Java-index,Solaris Operating System,Solaris Essentials - General Technical Questions...
# 2

That is the fix! 11/06 supports the sun4v hardware platform, which then supplies the correct files over net booting.

walter_sa at 2007-7-29 12:09:14 > top of Java-index,Solaris Operating System,Solaris Essentials - General Technical Questions...