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Catalyst 6504-E Rommon / Boot to IOS

afmiller1
Level 1
Level 1

Running a 6504-E with a Sup720B card that has a flash card in disk0: with the IOS s72033-adventerprise_wan-mz.122-33.SXI13.bin. When the switch is powered on / rebooted it always goes into rommon. It is trying to load an image from the bootflash: which is wrong. How do you get it to autoboot from disk0: ?

 

Thanks

1 Accepted Solution

Accepted Solutions

 

Think that is your problem ie. the configuration register values should be the same on both the RP and the SP. 

 

From configuration mode on the switch can you enter - 

 

config-register 0x2102

 

then rerun the commands I gave in last post and both outputs should show 0x2102 but you will need to reload the switch for it to use the new value.

 

Jon

View solution in original post

10 Replies 10

Reza Sharifi
Hall of Fame
Hall of Fame

Does the image exist on the bootflash?

Have a look at this document:

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6000-series-switches/17050-14.html#recprocedure

 

HTH

an SXD image is on the bootflash:, which is not the correct one. Bootflash does not have the storage to contain the IOS for it, which is why its on disk0:

Jon Marshall
Hall of Fame
Hall of Fame

 

What does "sh boot" show ? 

 

You should be able to set it with - 

 

boot system flash disk0:s72033-adventerprise_wan-mz.122-33.SXI13.bin 

 

Jon

 

Router#sh boot
BOOT variable = disk0:s72033-adventerprise_wan-mz.122-33.SXI13.bin,12;
CONFIG_FILE variable =
BOOTLDR variable =
Configuration register is 0x2102

Standby not ready to show bootvar

boot disk0:s72033-adventerprise_wan-mz.122-33.SXI13.bin

This should work. What error are you getting? 

Issue the dir disk0: command in ROMmon mode in order to verify that disk0 has a valid image in it

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6000-series-switches/17050-14.html

HTH

It sees the image just fine there

 

Can you post the output of - 

 

sh bootvar 

remote command switch sh bootvar 

 

Jon

Router#sh bootvar
BOOT variable = disk0:s72033-adventerprise_wan-mz.122-33.SXI13.bin,1;
CONFIG_FILE variable =
BOOTLDR variable =
Configuration register is 0x2102

 

Router#remote command switch sh bootvar

BOOT variable = disk0:s72033-adventerprise_wan-mz.122-33.SXI13.bin,1;
CONFIG_FILE variable does not exist
BOOTLDR variable does not exist
Configuration register is 0x0

 

Think that is your problem ie. the configuration register values should be the same on both the RP and the SP. 

 

From configuration mode on the switch can you enter - 

 

config-register 0x2102

 

then rerun the commands I gave in last post and both outputs should show 0x2102 but you will need to reload the switch for it to use the new value.

 

Jon

Works, Thanks!

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