I had a situation this morning. I had two IOS images in flash. In the running config, I told it which IOS to boot, but either it lost the config or I forgot to write it (probably the latter), and it booted the other image. The images were:
When there are two images, is there a certain boot order that these things take when multiple images exist? I just deleted the ipbase image to fix this issue, but I was curious how the router picked this image over the other.