04-15-2020 01:55 PM
hi,
i bought a second hand 870 router, when i start the router it goes automatically to rommon. can someone help me out of this please.
in advance thank you
Solved! Go to Solution.
04-17-2020 05:38 PM
@Vishnu Vardhan S wrote:
rommon 1 > xmodem -c c2691-advsecurityk9-mz.124-23.bin
Xmodem? On an 870? That is way old school. Out of fashion.
Starting with 870, and particularly 870, there is the option of using TFTPDNLD.
Option B: Some 870 models have a USB port. Transferring or even booting from the USB is way faster than using the archaic xmodem.
04-15-2020 02:44 PM
04-16-2020 01:02 AM
System Bootstrap, Version 12.3(8r)YI2, RELEASE SOFTWARE
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2005 by cisco Systems, Inc.
C870 series (Board ID: 5-148) platform with 131072 Kbytes of main memory
No bootable image file: flash:/
Unable to open boot file
System Bootstrap, Version 12.3(8r)YI2, RELEASE SOFTWARE
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2005 by cisco Systems, Inc.
C870 series (Board ID: 5-148) platform with 131072 Kbytes of main memory
No bootable image file: flash:/
Unable to open boot file
System Bootstrap, Version 12.3(8r)YI2, RELEASE SOFTWARE
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2005 by cisco Systems, Inc.
C870 series (Board ID: 5-148) platform with 131072 Kbytes of main memory
04-16-2020 07:00 AM
Thank you for the output. Here is the problem
No bootable image file: flash:/
Unable to open boot file
Does your router have a card in the card slot? If so can you reseat it and see if that helps? Normally the solution to having no boot file would be to obtain and load the boot file. But for a router that does not have a service contract I do not know how you would do that.
04-16-2020 07:55 AM
04-16-2020 02:03 PM - edited 04-16-2020 02:06 PM
@alishafaq9299167 wrote:
No bootable image file: flash:/
Console into the router and post the complete output to the command "dir flash:".
If the router goes into a boot loop (and couldn't get into ROMMON) then the seller has done the "nasty" and disabled password recovery.
If this is the case, then go HERE.
04-17-2020 01:51 AM
04-17-2020 02:43 AM
04-18-2020 02:42 AM
05-28-2024 04:08 AM
i have the same problem also
05-28-2024 03:09 PM
You have chosen to camp on to a 4 year old post. I wonder if you might have received more attention if you started a new discussion?
But you asked in this discussion so we will deal with your post here. So is it really the same issue? Did you buy a second hand router that did not have an IOS?
It seems that the original poster did have access to an IOS image file. Do you have access to an IOS image file? If so then the tftpdnld that was the solution in the original post should also be the solution for you.
04-17-2020 07:31 AM
Seems to be an IOS issue, try reinstalling the OS
These are three ways the router can enter ROM Monitor (ROMmon) mode (rommon#>):
rommon 1 > xmodem -c c2691-advsecurityk9-mz.124-23.bin
Do not start the sending program yet...
File size Checksum File name
21562452 bytes (0x1490454) 0x17fa c2691-advsecurityk9-mz.124-23.bin (deleted)
WARNING: All existing data in flash will be lost!
Invoke this application only for disaster recovery.
Do you wish to continue? y/n [n]: y
Ready to receive file c2691-advsecurityk9-mz.124-23.bin ...
CCCCCCCCCC
Timeout waiting for data - aborting download...
rommon 2 >
Use TFTP server if you have dont have the File in the device.
04-17-2020 05:38 PM
@Vishnu Vardhan S wrote:
rommon 1 > xmodem -c c2691-advsecurityk9-mz.124-23.bin
Xmodem? On an 870? That is way old school. Out of fashion.
Starting with 870, and particularly 870, there is the option of using TFTPDNLD.
Option B: Some 870 models have a USB port. Transferring or even booting from the USB is way faster than using the archaic xmodem.
04-18-2020 02:49 AM
04-18-2020 07:17 AM
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide