Firepower 2100 boot directly to Rommon

[cgedwards]

I have a pair of Cisco 2100 series firepower devices that I am configuring for deployment at two separate locations. Currently when powered on, they go into rommon, without any prompt from me. Once I type the boot command they will complete their boot process and allow configuration through the Firepower GUI. As these will be at remote sites, I need them to boot fully without user input.

[cgedwards · Accepted solution]

Shortly after posting I found this:

https://quickview.cloudapps.cisco.com/quickview/bug/CSCvp57772

The bug report linked solved my issue, though I find it weird as these are fresh from the box appliances.

[Mark Elsen]

 - Did you examine the confreg value the device was shipped with , (as explained in the bug-report) ?

 M.

[cgedwards]

It was set to 0x0. I went through the prompts of the confreg command and the value had changed to 0x1 when I was done. I did not see this step in any startup guide, so just a bit annoyed that this was buried so deeply in Cisco's documentation.

[Mark Elsen]

          - Yeah it stunned me too , that I could not  find this rather quick with searching.

 M.

[Marvin Rhoads]

Yes, I've been seeing it on multiple 2100 series this year. It's a change from previous behavior and definitely, as the bugID indicates, not how it should work.

The "confreg 0x1" command fixes it permanently. I had answered a similar thread a couple of weeks ago:

https://community.cisco.com/t5/network-security/fpr2140%E5%BC%80%E6%9C%BA%E8%BF%9B%E8%A1%8Crommon%E6%A8%A1%E5%BC%8F/td-p/4503896