On Fri, Jan 07, 2005 at 02:08:16AM -0500, Julien Aube wrote:
> sd0: sync (50.00ns offset 8), 16-bit (40.000MB/s) transfers, tagged
> queueing
> can't determine root device     <-------------
> root device (default isp0):

This means that the prom "/chosen/bootpath" property could not be matched
against the devices we detected. Your machine should print the bootpath
very early on boot, straight after the copyright and memory lines. What
does it look like? On my U2 it is:

 bootpath: /sbus@1f,0/SUNW,fas@e,8800000/sd@0,0

Martin