[c-nsp] Adventures while upgrading a dual sup-8 WS-C4510R+E

[Pavel Skovajsa]

Not that i recognize the error but with with the early sup8s i learned to
always upgrade the rommon first. Also upgrade using REAL power cycle not
a reload.

I know - sounds like nonsense, unfortunatelly backed by number of TAC
cases...

-pavel

On Tuesday, 11 October 2016, Sebastian Beutel <
sebastian.beutel at rus.uni-stuttgart.de> wrote:

> Dear List,
>
>     i don't want to hold back the experience i made today while trying to
> upgrade a 4510 shelf. Clearly the jump from 03.03.02 to 03.06.05 was too
> far. What i didn't expected was this message that showed up on the console
> of the second sup when the new ios booted there:
>
> ----<snip>---------------------------------------------------------------
>
> #    #    ##    #####   #    #    #    #    #   ####
> #    #   #  #   #    #  ##   #    #    ##   #  #    #
> #    #  #    #  #    #  # #  #    #    # #  #  #
> # ## #  ######  #####   #  # #    #    #  # #  #  ###
> ##  ##  #    #  #   #   #   ##    #    #   ##  #    #
> #    #  #    #  #    #  #    #    #    #    #   ####
>
> The following environment variable(s) are set.  Setting these
> environment variables may cause the system to behave unpredictably.
>         "DontShipDisableThermalShutdown"
> Use 'clear platform environment variable unsupported' to clear these
> variables.
>
> ----<snap>---------------------------------------------------------------
>
> Never heard of such a thing. And I definitely don't want my chassis to melt
> should our air condition refuse to work some day. So when i finaly finished
> the update i tried the suggested command and guess what:
>
> ----<snip>---------------------------------------------------------------
>
> dno19-y1-s1#clear platform environment variable unsupported
> No unsupported environment variables found
>
> ----<snap>---------------------------------------------------------------
>
> Even though i like beautifull ascii art and also variable names that start
> with "DontShip" i feel slightly scared having such a thing running on our
> production Switches. Has anyone ever seen something like that and knows how
> that is to be appraised?
>
> Best,
>    Sebastian.
>
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