Sparc dvd not bootable

[John Conner]

Hi,

I've tried to boot from DVD on Sparc using the DVD and CDROM images for v11
and the latest nightly and my T3-2 machine says there is nothing to boot.
I've tried burning one image twice.

In the same time period I've burned several other OSes to disk (Solaris,
various Linux versions) for the same machine any they have booted fine - so
I know the creation of the media is fine.

The checksums were all perfect and the images verified on burn.

I can't see any special instructions in the manual regarding booting. I'm
just doing "boot dvd" in OBP.  What am I missing?

John