I think you should at least format the flash on a C2800 router (another one could be fine).
I don't know if CME can work without the compact flash inserted in the router: if it needs to access the files during normal operation this is a problem and you need to schedule a maintenance window.
I understand that you would like to minimize out of service, but it is also important that the router will be able to boot many times from the same flash. So the safer way on the long term is to format the flash on the router that will use it or in another C2821.
We had some years ago a problem for this reason: a flash formatted and written on a C7507 with an image for GSR then the flash was inserted on GSR. It was OK for some time then one day the GSR rebooting complained of the flash and was stucked in rommon.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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