Bug#609371: Info received (linux-image-2.6.37-trunk-sparc64 fails to find the root partition (on Ultra5 running squeeze))
Using Sparc Ultra5 debian Squeeze packages, and the 2.6.37 Experimental source,
together with the patch set https://lkml.org/lkml/2011/1/21/386
Everything works as it should.
For the record, compiled with -mcpu=ultrasparc -mvis
and .config from 2.6.37 Experimental kernel package.