07-30-2014 08:26 AM - edited 03-07-2019 08:13 PM
I'm trying to tftp new IOS to 2911 router but I keep getting this error:
%Warning: File not a valid executable for this system
This is the IOS I am trying to load: c2900-universalk9-mz.SPA.152-4.M6a.bin
Anyone encountered this before?
07-30-2014 07:33 PM
Never seen this error message before. Did you try to compare the MD5 hash value?
07-31-2014 04:30 AM
Ok so weirdest thing. It wouldn't work from the LAN, but I was able to load it over the WAN. Took forever but once it was on the router I set the router to boot from the new image, router came back online with the new image successfully.
07-30-2014 09:03 PM
I tried to download an image of router 1841 on router 2851 and getting same error. Please check if you are downloading a valid file. If that does not help, please upload show tech of the router.
R11_2851#copy tftp flash:
Address or name of remote host [10.76.76.160]?
Source filename [c1841-advsecurityk9-mz.124-24.T5]? c1841-advsecurityk9-mz.124-24.T5.bin
Destination filename [c1841-advsecurityk9-mz.124-24.T5.bin]?
Accessing tftp://10.76.76.160/c1841-advsecurityk9-mz.124-24.T5.bin...
%Warning: File not a valid executable for this system
Abort Copy? [confirm]
R11_2851#
07-31-2014 04:29 AM
It definitely is a valid IOS, it is for Cisco 2911 and is Cisco suggested. I have loaded it up on other 2911's as well.
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