[c-nsp] FYI: Head's up on Sup720 SP bootrom (rommon) issues

[Michel Renfer]

We're running into a similar issue, as we (stress) tested our
new network with 'test crash' commands. The router was dropping
into rommon without loading any image. After verification in the
lab and upgrading the sup720 rommon, we were able to resolve the
issue.

cheers,
michel 

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 
> Charles Spurgeon
> Sent: Friday, August 11, 2006 11:47 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] FYI: Head's up on Sup720 SP bootrom (rommon) issues
> 
> FYI. This is a "heads up" on some image loading issues we ran into on
> our Sup720s.
> 
> We had a Sup720 running Native IOS that failed to reload and ended up
> at the "rommon>" prompt due to a read failure on a disk0 image file
> combined with a failure of the SP rommon code to load the backup image
> that had been configured to boot from sup-bootflash.
> 
> In other words, if you have multiple images configured to load in case
> someone walks away with the disk0 flash or in case the flash has a
> read error, and if you have old SP rommon code, then you may find that
> the SP rommon fails just when you need it most.
> 
> The particular failure we had was with 8.1(3) SP rommon code. Tests on
> a lab router with 7.7(1) code showed that it was worse than 8.1(3).
> 
> The bottom line is that we are now loading v8.4(2) rommon code into
> all of our Sup720 SPs, since our lab tests show that it appears to
> function correctly when the flash card is missing or the image file
> doesn't read correctly.
> 
> Thanks,
> 
> -Charles
> 
> Charles E. Spurgeon / UTnet
> UT Austin ITS / Networking
> c.spurgeon at its.utexas.edu / 512.475.9265
> 
> ==============================================================
> =============
> Info on upgrading the rommon can be found in the Sup720 
> rommon release notes:
> http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/re
> lnotes/ol_5631.htm
> 
> CatIOS command to see what SP rommon version you are running:
> ++++++++++++++++++++++++++++++
> lab-sup720BXL#remote command switch sho ver
> Cisco Internetwork Operating System Software 
> (blah, blah)
> 
> ROM: System Bootstrap, Version 8.4(2) Release
> ++++++++++++++++++++++++++++++
> 
> 
> 
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