Upgrade IOS on 1841 (Rommon TFTP only?)

[johnelliot]

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?

[spremkumar]

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