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Cat 9K switches, how to know how the machine will boot (conf-register)

wags
Level 1
Level 1

How to see what ROMMON variables are set while in a working 9K IOS-XE CLI?   Remember sh ver no longer works on these.

Based on reading below links, it appears that 9K devices no longer have the ability to show the ROMMON boot variables from IOS CLI.  As best I can tell, that means that it is a crap shoot to put on new IOS images and expect the machine to come back correctly.  Yes we are a largish shop with more than 1000 (not counting stack members) of these devices.  And yes sometimes the switches are "password recovered" and people forget to set the ROMMON variables back correctly.   

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-9300-series-switches/216850-configuration-register-equivalent-clis-i.html

https://community.cisco.com/t5/routing/0x102-or-0x2102/td-p/1550923

https://community.cisco.com/t5/switching/cat-9200-config-register/td-p/4388533

 

 

 

1 Accepted Solution

Accepted Solutions

Leo Laohoo
Hall of Fame
Hall of Fame

@wags wrote:
Based on reading below links, it appears that 9K devices no longer have the ability to show the ROMMON boot variables from IOS CLI. 
show romvar

 

View solution in original post

1 Reply 1

Leo Laohoo
Hall of Fame
Hall of Fame

@wags wrote:
Based on reading below links, it appears that 9K devices no longer have the ability to show the ROMMON boot variables from IOS CLI. 
show romvar