I'm wondering if anyone else has experienced any similar symptoms to the ones that we have on two of our systems. To keep it as short and concise as possible:
Whenever we reload (9 out of 10 times - we counted!) from CLI or CCA they always reboot but get stuck at romon when loading, meaning it doesn't reboot and its left hanging. When this occurs, we need to console into it and issue a reset over the console port. The device resets, then loads the config as expected.
If we issue a reload, wait until it enters rommon then power the system off from the power, then power it up again, it does the same thing. and enters romon.
If we pull the power without shutting the system down properly or reloading, it loads the config back up without error.
This has been an error which has been present on this system since almost 12 months ago, and still occured today while I was updating to the newest software bundle.
Liuttle confused and its difficult to manage the systems remotely for updates etc knowing you cannot reload the system!
Any ideas appreciated before I take this to TAC :)
Check what Steven mentioned - if you have a console up on the UC520 with config register set to 0x2102 and hit Ctrl + Break (or maybe some software on the console PC does the same), you can halt the boot up of the UC520 and it will fall back into rommon. Try removing the console cable from the UC520 and attempting a reload, if you hear the fan noise stop after a couple of minutes, you know you are good to go.
Do you have anything plugged into the console port? You could have a problem that if something is plugged in, it could be sending the break sequence.
Double check that the confreg is 0x2102. The IOS load is still on flash, correct?
Check to see if there is a statement in your CLI:
boot system flash: <--- the image is the IOS you see on dir flash:
If the image isnt there, it could cause that.
If that statement isnt there, it could cause this