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Cisco 2610 Boot Failure

By Vikas Bagwe
Question: my router just keeps rebooting and i dont know how to stop it to get it back to rommon mode.
When the 2610 boots, it goes to the rommon, please see output of router;
System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 40960 Kbytes of main memory

loadprog: bad file magic number: 0x0
boot: cannot load "flash:"

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 40960 Kbytes of main memory

loadprog: bad file magic number: 0x0
boot: cannot load "flash:"

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 40960 Kbytes of main memory

rommon 1 >dir flash:
File size Checksum File name
6816 bytes (0x1aa0) 0xba42 copy


Solution:
Loading the Boot Image
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
or
> 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
or
> i
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.

type in rommon status:
rommon 2 > IP_ADDRESS=192.168.19.11
rommon 3 > IP_SUBNET_MASK=255.255.255.0
rommon 4 > DEFAULT_GATEWAY=192.168.19.1
rommon 5 > TFTP_SERVER=192.168.20.10
rommon 6 > TFTP_FILE=/tftpboot/c2600-i-mz
rommon 7 > TFTP_VERBOSE=1
rommon 8 > tftpdnld
IP_ADDRESS=192.168.19.11
IP_SUBNET_MASK=255.255.255.0
DEFAULT_GATEWAY=192.168.19.1
TFTP_SERVER=192.168.20.10
TFTP_FILE=/tftpboot/2600-i-mz
TFTP_VERBOSE=1
Invoke this command for disaster recovery only.
WARNING: all existing data in flash will be lost!
Do you wish to continue? y/n: [n]:
Enter y to begin downloading the Cisco IOS software image. When the process is complete, the ROM monitor mode prompt displays on your screen.
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