please help, i formatted the CF card to FAT (FAT16) and copied IOS into it. After i switched on the router, the router did not recognized the Flash: but able to load the ios. please advice.
%Error show flash: (No such device)
As you have already tried formatting the CF card on the router, try a later IOS release as this is most likely an IOS bug. To test, you can just donwload the image on to your tftp server and then inlcude the following line as the first boot statement(do NOT delete the existing IOS from the flash):
boot system tftp x.x.x.x
Here, x.x.x.x -> TFTP server IP address