This is from the CCNA Simulator, ICND 1, Skill Builder --> Migrating to a new IOS image.
The lab went fine, I copied a new IOS file from a tftp server to the router.
I then go to global config mode and type:
boot system flash c2800nm-avipservicesk9-mz.124-21.binCopy running-config startup-config
Reload
The router should than reload the new IOS file instead of the first one it has (It has a total of 2 files saved in flash)
but it loads the last file and the lab tells me I didn't do it right.