Pete, You can hit the Pause key when your router is booting up that will stop it from rebooting and but you a a promt that you can work. Also check the register to make sure you have it set to boot to flash and not rommon mode.
The reason for the bad magic number is a bad IOS. Down load a new IOS and reload it..You will need to do this thru Xmodem. it will be slow but should do the trick..
If the router contains a valid boot image, it can be used to download a valid Cisco IOS Software image into the Flash using TFTP. To do this, perform the following steps:
Change the configuration register to boot the boot image by setting the configuration register as follows (depending on the prompt you have):
rommon 1 > confreg 0x2101
> o/r 0x2101
You must reset or power cycle for the new configuration to take effect.
!--- this is the router output when a confreg command is entered.
The configuration register has now been changed to boot the boot image.
Boot the boot image by resetting the router:
rommon 2 > reset
The System Bootstrap message appears and the router boots its boot image. On the screen, you should see something like this:
System Bootstrap, Version 11.1(7)AX [kuong (7)AX], EARLY DEPLOYMENT RELEASE SOFTWARE (fc2)
Copyright (c) 1994-1996 by cisco Systems, Inc.
C1600 processor with 18432 Kbytes of main memory
program load complete, entry point: 0x4018060, size: 0x1da950
Restricted Rights Legend
You should now have a prompt similar to "Router(boot)>".....then i think you should know what to do:)
If you are still in ROMmon, that means your boot image is either missing or corrupted. If your router has no valid image in Flash or Bootflash, and no other ROMmon upgrade procedure, the only way to recover is to have a similar router with a compatible Flash card, download the image on that router, then move the Flash card to the one that is stuck.
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