Friday, July 30, 2010

Cisco IOS router stuck in rommon

Moral of the story - if you are getting checksum errors on the rommon prompt of a Cisco IOS router, and you know that you have downloaded the correct image from the correct website, then either your router's flash memory or the USB drive you are using to transfer it is corrupt. I know the latter seems like a distant possibility, but yes, it has happened to me and I lost a good 3 weeks of productive time trying to troubleshoot this.