"Can't open boot device" mesage when installing Solaris 10 by cdrom

I am getting the following error message when I try to install Solaris 10 from cdrom:

"Can't open boot device."

The system I am trying to install to is a SunFire v100.

The boot command I am using is:

ok boot cdrom - nowin

I have used this cd to successfully install several other v100s without any trouble. I have tried another cd and get the same behavior. I have also tried installing another v100 and get the same error.

Any help on this would be greatly appreciated.

[534 byte] By [geoff] at [2007-11-25 22:53:22]