[c-nsp] Upgrading VSS switches, modular-monolithic ios??

Simon Morand Simon.Morand at mbvsi.fr
Mon Dec 5 12:32:37 EST 2011

Hi list,
we have two 6509 running in VSS mode and we encountered the bug described here
Basically we can't ssh into the switches so we're planning on upgrading the switches to fix it.

The current image is "sup-bootdisk:s72033-ipservicesk9_wan-mz.122-33.SXI3.bin" and we would like to upgrade to s72033-ipservicesk9_wan-mz.122-33.SXI8.
I read the guidelines for upgrading here http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/vss.html#wp1172503
but I noticed something I'm not familiar with :
eFSU Upgrade on an Installed Modular Image Example
This example shows how to perform an an eFSU upgrade on an installed modular image:
Router# copy sup-bootdisk:s72033-advipservicesk9_wan-vz.122-33.SXI2.bin
Router# copy slavesup-bootdisk:s72033-advipservicesk9_wan-vz.122-33.SXI2.bin
Router# install file sup-bootdisk:s72033-advipservicesk9_wan-vz.122-33.SXI2.bin sup-bootdisk:/newsys
Router# install file slavesup-bootdisk:s72033-advipservicesk9_wan-vz.122-33.SXI2.bin slavesup-bootdisk:/newsys

The thing is, the install command is not available on my switch :
% Unrecognized command
So I guess I'm not running a modular IOS.
I read a bunch of things about monolithic and modular IOS but I'm kinda lost here...
Could you tell me how can I tell the difference between a modular and a monolithic image?
And in my case, what should I do after copying the image on the sup-bootdisks?
Is there any other impact on the upgrade process?
Thank you for your answers!!

Ingénieur Support et Production
MBV Systèmes d'Information
Tèl : 01 44 51 60 13
Mob : 06 09 14 84 24
Email : simon.morand at mbvsi.fr<mailto:simon.morand at mbvsi.fr>

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