[rescue] Ultra 1 - is it OK?
corey at phix.com
Thu Jan 8 12:55:50 CST 2004
> On Wed, 7 Jan 2004, Shirker wrote:
> > The NVRAM battery in my Ultra 1 has gone flat, it seems.
> > It displays the following rather disconcerting message upon switch-on:
> > SC Control: EWP: 0 IAP: 0 FATAL: 0 WAKEUP: 0 BXIR: 0 BPOR: 0
> > SXIR: 0 SPOR: 1 POR: 0
> > and then continues as normal:
> > Probing Memory Bank #0 ...
> This looks like diag-mode. Which is often an indication your NVRAM
> went south, but not always. I've never seen an Ultra NVRAM go flat
> before, but all the sun4c and sun4m machines I've seen with NVRAM]
> problems specifically mention the battery and/or TOD clock are bad.
Another thing that occurs when a sun4[cm] machine's
NVRAM battery dies is that the system will lose its
hostid (and hence the ethernet MAC address which is
derived from this). I too have never lost an NVRAM in
an Ultra, so I don't know if these share that behaviour.
But, if you're losing your hostID/MAC, that would be a
good indication that the NVRAM battery is dead.
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