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Upgrade IOS on 1841 (Rommon TFTP only?)

Hi,

Having some trouble upgrading the IOS on an 1841 - The IOS successfully tftp's to the routers flash card, but then on reboot it fails.

loadprog: bad file magic number: 0x0

boot: cannot load "flash:c1841-advsecurityk9-mz.124-12.bin"

rommon 5>

At first I though it was a corrupt image, but if I tftp the image in rommon mode, I can successfully boot with the new ios?

1 REPLY

Re: Upgrade IOS on 1841 (Rommon TFTP only?)

Hi John

You can try formating the flash and trying the recovery process again.

You can also refer the below link for more help..

http://www.cisco.com/en/US/products/hw/routers/ps282/products_tech_note09186a008075fd05.shtml#rmon11

regds

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