[c-nsp] 6509 SUP720 ROMMON upgrade troubles

[Lee Starnes]

Thank you Ron. That was exactly what it was. First time I have run into
needing to replace a battery on any Cisco blades. Makes we wonder if I have
failed batteries in chassis that have been in service for 4+ years.

Thanks again for your help.

-Lee

On Sat, Feb 23, 2019 at 5:36 PM Ron M. <ccie4526 at gmail.com> wrote:

> 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 already.
>
> 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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>