[c-nsp] 6509 SUP720 ROMMON upgrade troubles

Ron M. ccie4526 at gmail.com
Sat Feb 23 20:35:53 EST 2019

You might check the little CMOS battery on the left side of the MSFC3. I've
run into NVRAM corruption issues that generally revolve around that battery
being low/dead. It's definitely replaceable, I've done that a couple times

On Fri, Feb 22, 2019 at 5:50 PM Lee Starnes <lee.t.starnes at gmail.com> wrote:

> Hello,
> I have a SUP720-3BXL that us running ROMMON 8.1 and am trying to upgrade to
> 8.5(3). I have gone through the upgrade steps, and upon reload it retains
> the correct version. However, if I power cycle the chassis, it reverts back
> to 8.1. and lands in ROMMON.
> If I boot the OS and do an *upgrade rom slot 6 pref region1<enter>* and
> then reload, version 8.5(3) ROMMON is now active again. But again if I
> power cycle, it goes away. Is there something that I am doing wrong?
> In all cases, it always drops into ROMMON on boot and I have to issue
> boot<enter> to get it to boot. However if I insert a different SUP of the
> same model with the upgraded ROMMON, the chassis boots fine.
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