Hi Seymour,
Which OpenSolaris release is this?
I'm unclear of the root cause and because I don't know if you did this
step but because you are adding the second root pool disk manually, you
need to add a block block, like this:
x86# installgrub /boot/grub/stage1 /boot/grub/stage2
Two identical disks have identical partition tables:
Current partition table (original):
Total disk cylinders available: 30398 + 2 (reserved cylinders)
Part TagFlag Cylinders SizeBlocks
0 rootwm 262 - 30397 230.85GB(30136/0/0) 484134840