I tried again to boot with "-B intel-iommu=no". That did not boot. Failing on the ....mouse...foo..bar.
I then booted with " -B disable-ehci=true" This fails (not surprisingly) but I get to a point where I get a choice of root shell or ctrl -D. I open a root shell. Then "cd /platform/i86pc/kernel/drv/" and "cat rootnex.conf" This gives me: "intel-iommu=no;" -- This message posted from opensolaris.org