From: George Adkins 
To: rescue@sunhelp.org
Subject: Re: [rescue] Couple of questions from a SPARC newbie
Date-Sent: Saturday, March 16, 2002 10:53 AM -0500

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Okay, a couple of things here...

The manufacturer has changed their product recently, meaningg that the new 
NVRAMS now make older Sun4C boxes barf, even when the IDPROM checksum is set 
correctly.

The following instructions will get them working properly, I have several 
machines using these, and they all work fine with a little tweak.  Once you 
have programmed all the information into the PROM as the NVRAM FAQ instructs 
you to, you reset the machine, and it tries to come up, and barfs with an 
IDPROM Checksum Invalid.  Next, use the following lines to program the 
NVRAMRC like this:

nvedit 
probe-all 
install-console 
banner 
boot 

nvstore
setenv use-nvramrc? true

Then reset.  It should work just fine now.  If you goof up the NVRAMRC, you 
can set-default nvramrc (IIRC) to clear it.  This string of commands walks 
the machine through what is effectively a soft-reset so that it comes up 
correctly.


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