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Tuesday, May 24, 2011

Can you include the boot sequence for SUP7-E upgrading ROMMON


We have a SUP7-E(nonredundant) running with Cisco IOS XE Version 03.2.0SG.
In order to Upgrade from ROMMON Version 15.0(1r)SG1 to 15.0(1r)SG2 we
have to boot the Upgradei mage according to the Release Notes from ROM Monitor,i.e.
rommon 2 >boot bootflash:cat4500-e-ios-promupgrade-150-1r-SG2

Is it possible to include the boot sequence for the ROMMON Upgrade into the startup-config
i.e.
boot-start-marker
boot system bootflash:cat4500-e-ios-promupgrade-150-1r-SG2
boot system bootflash:cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin
boot-end-marker
then reload the switch without forcing into ROM Monitor ?
this was possible with the former Supervisories including the SUP6-E.

According to the ROMMON Notes for Supervisor Engine 7-E documentation on the following link, loading the rommon upgrade image automatically could be possible, however the switch might end up in a boot loop after finishing the upgrade as it will continuously try to load the rommon upgrade image during the autoboot process.
Please click here for Cisco documentation on ROMMON notes for Supervisor engine 7-E.

Also most likely because the switch tries to boot up the rommon upgrade image another 2 or 3 times after the successful upgrade and because it fails to boot up from that image, it falls back to another one in your boot list, then it boots up with the correct image.

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