[OpenIndiana-discuss] Hard shutdown now no boot

[Harry Putnam]

Running OI a9 on HP xw8600

Following a hard shutdown from power outage; attempted boots produced
an error message indicating a problem with the onboard battery and
that the date was way off.

On booting to bios I discovered the date was on zeros all around.

AFter resetting the date to its (then current) figures, a new boot
went on to the point of bringing up the grub screen with possible
versions to boot, defaulting to the most recent listed.

That bootup brings up the opening screen of OI boot with the graphic
of a completion gauge. That is, a white heavy walled long thin oval
with a heavy white line inside.  All on a blue background and with
ilumos logo visible in lower right corner.

On previous normal boots, that heavy white line turns red begining at
the left and progressivly turning red to the right until the OS
suddenly appears.

Currently, I see the white line turning red for about the first inch
and then a sudden reboot takes over.

In other words, I'm unable to boot my OS beyond the first stages.

I haven't had this kind of trouble for very long time and have
forgotten how to perform an emergency boot.

Further, once I've made an emergency boot I suspect the OS time is
still completely off and possibly causing the unwanted sudden reboot.

So a few main things:

1) How to get booted?  Is it just a matter of booting from the old a8
   iso then mounting some parts of the current os enough to chroot in
   and sets the time/date and see if that cures things? 
2) Assuming I get an emergency boot accomplished... what do I need to
   mount to be able to chroot in and set time/date?

3) Is there a proceedure required for setting time/date on Solaris
   that is different from linux in major ways?