How to configure Slave Sup720 ?

Answered Question
Mar 13th, 2009

Hi All,

How to configure Stanby supervisor engine. I need to change the boot image string.

1118th307-6513-01#show diagnostic sanity

Pinging default gateway

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to, timeout is 2 seconds:


Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

Invalid boot image "sup-bootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin" specified in the boot string on the slave.

Please check your boot string on the slave.

None of the images specified in the boot string on the slave are valid.

Please specify at least one valid image in the slave boot string to ensure the

slave is in a bootable state.

Thank you!

I have this problem too.
0 votes
Correct Answer by Giuseppe Larosa about 7 years 8 months ago

Hello Sivaprakasam,

yes it is fine.

Hope to help


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Overall Rating: 5 (2 ratings)
drolemc Thu, 03/19/2009 - 14:40

You are hitting bug CSCsc98471.

Show diagnostic sanity fails to check software modularity boot string

This is a cosmetic issue with the "show diagnostic sanity" command.

You should manually verify the bootstring if using modular IOS

sivaprakasam81 Thu, 03/19/2009 - 15:09


How can i manually verify the boot string. This is my boot string vlaues.,

1118th307-6513-01#show run | inc boot

boot system flash sup-bootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin

boot system flash slavesup-bootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin

boot system flash slavebootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin

Giuseppe Larosa Fri, 03/20/2009 - 04:25

Hello Sivaprakasam,

verify that the files at the different locations exist


dir slavesup-bootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin

dir slavebootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin

if you get positive information the boot string is correct

Hope to help


sivaprakasam81 Fri, 03/20/2009 - 08:00


I hope the reply is very positive,

6513-01#dir slavesup-bootflash:s72033-ipservicesk9-mz.122-18.SXF11.bin

Directory of slavesup-bootflash:/s72033-ipservicesk9-mz.122-18.SXF11.bin

1 -rwx 42827268 Sep 16 2008 14:18:56 -04:00 s72033-ipservicesk9-mz.122-18.SXF11.bin

65536000 bytes total (22470184 bytes free)

Thank you,


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