I have already explained how we could get into rommon by using a break command to interrupt the boot sequence and that would take us to ROM's monitor mode. But we only used it to change register settings, and that was very simple.
But what would you do if you come into work on Monday and found the following screen staring you in the face, telling you that it could not find a bootable device.
Look at this screenshot:
You would be like, what in the world? At this moment, you need to take a breath and think, OK, when I left, all was well and everything was copied to NVRAM and backed up to a TFTP server. It could be possible that you changed the registry to boot to rommon by fat finger the keyboard.
So, what you first try is changing the registry to 0x2102 and resetting to see whether it boots fine, and it does not.
What is happening is your IOS got...
