Can't upgrade ROMMON on 2811 router

Eric Fox · ‎07-12-2013

I'm trying to upgrade the ROMMON on three 2811 routers to support USB booting. The routers were cleared of any config to begin with.

On two of them the upgrade went smoothly, just as documented, by doing:

upgrade rom-monitor file flash:c2800nm_rm2.srec.124-13r.t11

The routers flashed the NV-RAM, rebooted, and hey-presto loaded the new ROMMON version.

On the third router (actually the first I tried, of course, causing a lot of wasted time) it does not work. Everything looks good until the router reloads, then it says:

Initializing memory for ECC
..

Upgrade ROMMON programming not complete.
Falling to ReadOnly ROMMON

...etc.

No new ROMMon. I tried selecting the NV-RAM with the "upgrade rom-monitor preference" command to be told that there was no programmed upgrade to select.

Is there any setting I'm missing that might be preventing the upgrade?

I'm concerned that it might be faulty NV-RAM.

Rick.

Leo Laohoo · ‎07-12-2013

I've never seen an error message like that.

Sent from Cisco Technical Support Nintendo App

Eric Fox · ‎07-12-2013

lol, me neither until today!

I've been working on this for hours and can't get anywhere. I've even pulled the WIC cards out so it's just a bare unit effectively factory fresh. It was configured identically to one of the other two routers initially; same IOS version etc. and that one upgraded without issues.

Where exactly is the upgraded ROMMON file stored when it is programmed? I had assumed NV-RAM but I guess that is wrong and there is a seperate flash chip on the motherboard for it. Is there a way to test that flash? I did a "test memory" on the NV-RAM which passed.

Leo Laohoo · ‎07-12-2013

I believe the bootstrap is located in the "bs:".

Eric Fox · ‎07-13-2013

The router doesn't seem to have a bs: filesystem. It has a system: filesystem which seems to contain (I guess) symbolic links to other places,

I think it's probably irelevent anyway. I've tried so many times now to update the ROMMION on this particular router that I can only conclude it has a hardware fault.